1. Protector behind rotatable formula car, its characterized in that includes: the device comprises a first seat body, a first shaft body arranged on the first seat body and extending along a preset straight line, a first swing arm pivoted on the first seat body through the first shaft body, a second seat body, a second shaft body arranged on the second seat body and coaxially arranged with the first shaft body, a second swing arm pivoted on the second seat body through the second shaft body, a stop lever connected with the first swing arm and the second swing arm and switched between a first rotating position and a second rotating position, and a blocking mechanism used for preventing the stop lever positioned at the first rotating position from rotating towards a position deviating from the second rotating position; the first rotational position is located below the second rotational position, and the first rotational position is located below the predetermined line.

2. The rotatable rear fender of claim 1, wherein the blocking mechanism comprises: the first pin body and a first pin hole are formed in the first swing arm and used for the first pin body to slide; the extending direction of the first pin hole is parallel to the preset straight line; the first seat body is provided with a first positioning hole and a second positioning hole for the first pin body to be clamped in respectively; when the stop lever is located at the first rotating position, the first pin body is aligned with the first positioning hole; when the stop lever is located at the second rotation position, the first pin body is aligned with the second positioning hole.

3. The rotatable rear fender of claim 2, further comprising: a first handle and a first connecting pin; the first handle is provided with a first plate body part and a second plate body part which are arranged in parallel at intervals; the first plate portion has a first smooth edge in contact with the first swing arm, and the second plate portion has a second smooth edge parallel to the first smooth edge and in contact with the first swing arm; the first plate body part is provided with a first assembling hole, and the second plate body part is provided with a second assembling hole; the first connecting pin sequentially penetrates through the first assembling hole and the second assembling hole; the first pin body is provided with a first mounting hole for the first connecting pin to pass through; the first smooth edge has a first proximal end proximate the first connecting pin and a first distal end distal the first connecting pin; the first connecting pin is perpendicular to the first pin body.

4. The rotatable rear fender of claim 3, wherein the first pin body is provided with a first boss, and the first swing arm is located between the first boss and the first handle; the first pin body is sleeved with a first spring, and the first spring is clamped between the first boss and the first swing arm.

5. The rotatable rear fender of claim 1, wherein the blocking mechanism further comprises: the second pin body and a second pin hole are formed in the second swing arm and used for the second pin body to slide; the extending direction of the second pin hole is parallel to the preset straight line; the second seat body is provided with a third positioning hole and a fourth positioning hole for the second pin body to be clamped in respectively; when the stop lever is located at the first rotating position, the second pin body is aligned with the third positioning hole; when the stop lever is located at the second rotation position, the second pin body is aligned with the fourth positioning hole.

6. The rotatable rear fender of claim 5, further comprising: a second handle and a second connecting pin; the second handle is provided with a third plate body part and a fourth plate body part which are arranged in parallel at intervals; the third plate body portion has a third smooth edge in contact with the second swing arm, and the fourth plate body portion has a fourth smooth edge parallel to the third smooth edge and in contact with the second swing arm; a third assembling hole is formed in the third plate body part, and a fourth assembling hole is formed in the fourth plate body part; the second connecting pin sequentially penetrates through the third assembling hole and the fourth assembling hole; the second pin body is provided with a second mounting hole for the second connecting pin to pass through; the third smooth edge has a second proximal end proximate the second connector pin and a second distal end distal the second connector pin; the second connecting pin is perpendicular to the second pin body.

7. The rotatable rear fender of claim 6, wherein the second pin body is provided with a second boss, and the second swing arm is located between the second boss and the second handle; the second pin body is sleeved with a second spring, and the second spring is clamped between the second boss and the second swing arm.

8. The rotatable rear fender of claim 1, wherein the blocking mechanism further comprises: the first baffle plate is arranged on the seat body, the edge of the first baffle plate is bent, and the first buffer cushion is arranged on the first baffle plate and is positioned on the rotating path of the first swing arm; when the stop lever rotates to the first rotating position, the first swing arm abuts against the first buffer pad.

9. The rotatable rear fender of claim 1, wherein the blocking mechanism comprises: the second baffle plate is arranged on the seat body, the edge of the second baffle plate is bent, and a second cushion pad is arranged on the second baffle plate and is positioned on the rotating path of the second swing arm; when the stop lever rotates to the first rotating position, the second swing arm abuts against the second cushion pad.

10. A vehicle, characterized by comprising: the vehicle body with the longitudinal beam and the rotatable rear protection device of any one of claims 1 to 9, wherein the first seat body is fixed on the first longitudinal beam through a first bolt, and the second seat body is fixed on the second longitudinal beam through a second bolt.

Background

In modern vehicles, such as automobiles, it is often desirable to protect the rear of the vehicle. The existing vehicle is generally provided with a protective bar at the rear part of the vehicle for protection, however, in many situations that the vehicle is towed behind (for example, a vehicle frame is towed behind the vehicle), the protective bar usually obstructs the towing behind, and if the obstruction of the rear towing by the protective bar is to be avoided, the position of the protective bar is usually required to be adjusted, but the position of the protective bar is very difficult to adjust.

Disclosure of Invention

The invention aims to provide a rotatable type vehicle rear protection device to solve the technical problem that a protection bar is difficult to position in the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that: provided is a rotatable type vehicle rear protection device, comprising: the device comprises a first seat body, a first shaft body arranged on the first seat body and extending along a preset straight line, a first swing arm pivoted on the first seat body through the first shaft body, a second seat body, a second shaft body arranged on the second seat body and coaxially arranged with the first shaft body, a second swing arm pivoted on the second seat body through the second shaft body, a stop lever connected with the first swing arm and the second swing arm and switched between a first rotating position and a second rotating position, and a blocking mechanism used for preventing the stop lever positioned at the first rotating position from rotating towards a position deviating from the second rotating position; the first rotational position is located below the second rotational position, and the first rotational position is located below the predetermined line.

Further, the blocking mechanism includes: the first pin body and a first pin hole are formed in the first swing arm and used for the first pin body to slide; the extending direction of the first pin hole is parallel to the preset straight line; the first seat body is provided with a first positioning hole and a second positioning hole for the first pin body to be clamped in respectively; when the stop lever is located at the first rotating position, the first pin body is aligned with the first positioning hole; when the stop lever is located at the second rotation position, the first pin body is aligned with the second positioning hole.

Further, still include: a first handle and a first connecting pin; the first handle is provided with a first plate body part and a second plate body part which are arranged in parallel at intervals; the first plate portion has a first smooth edge in contact with the first swing arm, and the second plate portion has a second smooth edge parallel to the first smooth edge and in contact with the first swing arm; the first plate body part is provided with a first assembling hole, and the second plate body part is provided with a second assembling hole; the first connecting pin sequentially penetrates through the first assembling hole and the second assembling hole; the first pin body is provided with a first mounting hole for the first connecting pin to pass through; the first smooth edge has a first proximal end proximate the first connecting pin and a first distal end distal the first connecting pin; the first connecting pin is perpendicular to the first pin body.

Further, a first boss is arranged on the first pin body, and the first swing arm is located between the first boss and the first handle; the first pin body is sleeved with a first spring, and the first spring is clamped between the first boss and the first swing arm.

Further, the blocking mechanism further comprises: the second pin body and a second pin hole are formed in the second swing arm and used for the second pin body to slide; the extending direction of the second pin hole is parallel to the preset straight line; the second seat body is provided with a third positioning hole and a fourth positioning hole for the second pin body to be clamped in respectively; when the stop lever is located at the first rotating position, the second pin body is aligned with the third positioning hole; when the stop lever is located at the second rotation position, the second pin body is aligned with the fourth positioning hole.

Further, still include: a second handle and a second connecting pin; the second handle is provided with a third plate body part and a fourth plate body part which are arranged in parallel at intervals; the third plate body portion has a third smooth edge in contact with the second swing arm, and the fourth plate body portion has a fourth smooth edge parallel to the third smooth edge and in contact with the second swing arm; a third assembling hole is formed in the third plate body part, and a fourth assembling hole is formed in the fourth plate body part; the second connecting pin sequentially penetrates through the third assembling hole and the fourth assembling hole; the second pin body is provided with a second mounting hole for the second connecting pin to pass through; the third smooth edge has a second proximal end proximate the second connector pin and a second distal end distal the second connector pin; the second connecting pin is perpendicular to the second pin body.

Further, a second boss is arranged on the second pin body, and the second swing arm is located between the second boss and the second handle; the second pin body is sleeved with a second spring, and the second spring is clamped between the second boss and the second swing arm.

Further, the blocking mechanism further comprises: the first baffle plate is arranged on the seat body, the edge of the first baffle plate is bent, and the first buffer cushion is arranged on the first baffle plate and is positioned on the rotating path of the first swing arm; when the stop lever rotates to the first rotating position, the first swing arm abuts against the first buffer pad.

Further, the blocking mechanism includes: the second baffle plate is arranged on the seat body, the edge of the second baffle plate is bent, and a second cushion pad is arranged on the second baffle plate and is positioned on the rotating path of the second swing arm; when the stop lever rotates to the first rotating position, the second swing arm abuts against the second cushion pad.

The present invention also provides a vehicle comprising: the automobile body with longeron and protection device behind rotatable formula car, the first pedestal passes through the first bolt fastening on first longeron, the second pedestal passes through the second bolt fastening on the second longeron.

The rotatable vehicle rear protection device provided by the invention has the beneficial effects that: compared with the prior art, the rotatable type vehicle rear protection device provided by the invention has the advantages that the first seat body can be arranged on a vehicle, and the second seat body can be arranged on the vehicle; the first swing arm is pivoted on the first seat body through the first shaft body, the second swing arm is pivoted on the second seat body through the second shaft body, and the first shaft body and the second shaft body extend along the direction of a preset straight line respectively, and the stop lever is fixedly connected with the first swing arm and the second swing arm, so that the stop lever can rotate around the preset straight line through the first swing arm and the second swing arm; in the process that the stop lever rotates around the preset straight line, the position of the stop lever can be adjusted, so that the stop lever can be conveniently moved; the first rotating position is positioned below the second rotating position, and the first rotating position is positioned below the preset straight line, so that the blocking rod is easy to keep at the first rotating position under the action of self gravity when the blocking rod moves from the second rotating position to the first rotating position; when the stop lever is located first rotational position and outside object is with the direction striking of stop lever towards keeping away from second rotational position, stop gear can prevent that the stop lever from rotating to the direction of first rotational position from the second rotational position, has ensured the stability of stop lever position, the protection vehicle.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic view illustrating an installation of a rotatable rear fender device according to an embodiment of the invention;

FIG. 2 is a schematic front view of a rotatable rear fender provided in accordance with an embodiment of the present invention;

FIG. 3 is an enlarged view of the point A in FIG. 2;

fig. 4 is a schematic front view of the first base according to the embodiment of the present invention;

fig. 5 is a left side schematic view of the first seat according to the embodiment of the present invention;

FIG. 6 is a front view assembly view of a first handle provided by an embodiment of the present invention;

FIG. 7 is a right side schematic view of a first handle provided by an embodiment of the present invention;

fig. 8 is a rear view of the first handle according to the embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

11-a first seat body; 12-a first shaft body; 13-a first swing arm; 21-a second seat body; 22-a second shaft body; 23-a second swing arm; 3-a stop lever; 41-a first pin body; 42-a first pin hole; 43-a first locating hole; 44-a second locating hole; 45-a first handle; 451-a first plate body portion; 4511 — first smooth edge; 4512-first assembly hole; 452-a second plate portion; 4521 — second smooth edge; 4522-second assembly hole; 46-a first connecting pin; 461 — first mounting hole; 462-a first boss; 47-a first spring; 481 — first baffle; 482-a first cushion; 51-a first stringer; 52-a second stringer; 53-first bolt; 54-second bolt.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 to 8, a rotatable rear protection device of a vehicle according to the present invention will now be described. Rotatable formula protector behind car includes: the device comprises a first seat body 11, a first shaft body 12 which is arranged on the first seat body 11 and extends along a preset straight line, a first swing arm 13 which is pivoted on the first seat body 11 through the first shaft body 12, a second seat body 21, a second shaft body 22 which is arranged on the second seat body 21 and is coaxial with the first shaft body 12, a second swing arm 23 which is pivoted on the second seat body 21 through the second shaft body 22, a stop lever 3 which is connected with the first swing arm 13 and the second swing arm 23 and is switched between a first rotating position and a second rotating position, and a blocking mechanism which is used for preventing the stop lever 3 positioned at the first rotating position from rotating towards a position deviating from the second rotating position; the first rotational position is located below the second rotational position, and the first rotational position is located below the predetermined line.

Thus, the first seat 11 can be mounted to a vehicle, and the second seat 21 can be mounted to the vehicle; the first swing arm 13 is pivoted on the first seat 11 through the first shaft body 12, the second swing arm 23 is pivoted on the second seat 21 through the second shaft body 22, and as the first shaft body 12 and the second shaft body 22 extend along the predetermined linear direction respectively, and the stop lever 3 is fixedly connected with the first swing arm 13 and the second swing arm 23, the stop lever 3 can rotate around the predetermined linear direction through the first swing arm 13 and the second swing arm 23; in the process that the stop lever 3 rotates around a preset straight line, the position of the stop lever 3 can be adjusted, so that the stop lever 3 can be conveniently moved; (assuming that the bar 3 rotates in the first direction around the predetermined straight line in the process of rotating the bar 3 from the first rotational position to the second rotational position; assuming that the bar 3 rotates in the second direction around the predetermined straight line in the process of rotating the bar 3 from the second rotational position to the first rotational position; since the first rotational position is located below the second rotational position and the first rotational position is located below the predetermined straight line, the bar 3 is easily maintained at the first rotational position by its own weight when the bar 3 moves from the second rotational position to the first rotational position; when the stop lever 3 is located at the first rotation position and an external object impacts the stop lever 3 in a direction (for example, the second direction) away from the second rotation position, the blocking mechanism can prevent the stop lever 3 from rotating from the second rotation position to the first rotation position, so that the position of the stop lever 3 is stable, and the vehicle is protected.

In one embodiment, the predetermined straight line extends in a horizontal direction.

In one embodiment, the first base 11 is a metal base. In one embodiment, the first fastening structure 11 and the first shaft 12 are integrally formed.

In one embodiment, the second seat 21 is a metal seat. In one embodiment, the second seat 21 and the second shaft 22 are integrally formed.

In one embodiment, the first swing arm 13 extends in a linear direction.

In one embodiment, the second swing arm 23 extends in a linear direction.

Further, referring to fig. 1 to 8, as an embodiment of the rotatable rear protection device of the present invention, the blocking mechanism includes: a first pin body 41 and a first pin hole 42 which is arranged on the first swing arm 13 and is used for the first pin body 41 to slide; the extending direction of the first pin hole 42 is arranged in parallel with a predetermined straight line; the first seat 11 is provided with a first positioning hole 43 and a second positioning hole 44 for the first pin 41 to be inserted therein; when the bar 3 is in the first rotation position, the first pin body 41 is aligned with the first positioning hole 43; when the stop lever 3 is located at the second rotational position, the first pin body 41 is aligned with the second positioning hole 44. Thus, the first swing arm 13 is provided with a first pin hole 42, and the first pin body 41 is inserted into the first pin hole 42 and slides along the first pin hole 42; when the bar 3 rotates to the first rotation position, the first pin body 41 is inserted in the first positioning hole 43 to prevent the first swing arm 13 from rotating relative to the first seat 11, so that the bar 3 can be maintained at the first rotation position; when the bar 3 rotates to the second rotational position, the first pin body 41 is inserted into the second positioning hole 44 to prevent the first swing arm 13 from rotating relative to the first seat 11, so that the bar 3 can be maintained at the second rotational position.

Further, referring to fig. 1 to 8, as an embodiment of the rotatable rear protection device of the vehicle according to the present invention, the device further includes: a first handle 45 and a first connecting pin 46; the first handle 45 has a first plate body portion 451 and a second plate body portion 452 arranged in parallel at a spacing; the first plate body portion 451 has a first smooth edge 4511 in contact with the first swing arm 13, and the second plate body portion 452 has a second smooth edge 4521 parallel to the first smooth edge 4511 and in contact with the first swing arm 13; the first plate body part 451 is provided with a first assembly hole 4512, and the second plate body part 452 is provided with a second assembly hole 4522; the first connecting pin 46 passes through the first assembly hole 4512 and the second assembly hole 4522 in sequence; the first pin body 41 is provided with a first mounting hole 461 for the first connecting pin 46 to pass through; first smooth edge 4511 has a first proximal end proximal to first connecting pin 46 and a first distal end distal to first connecting pin 46; the first connecting pin 46 is disposed perpendicular to the first pin body 41. In this way, the first handle 45 is provided with the first connecting pin 46, one end of the first connecting pin 46 is inserted into the first assembling hole 4512 of the first plate body portion 451, and the other end of the first connecting pin 46 is inserted into the second assembling hole 4522 of the second plate body portion 452, so that the first connecting pin 46 is very convenient to install; since the first plate body portion 451 has a first smooth edge 4511 in contact with the first swing arm 13, the second plate body portion 452 has a second smooth edge 4521 in contact with the first swing arm 13, the first smooth edge 4511 is parallel to the second smooth edge 4521; the first handle 45 is supported on the first swing arm 13 by a first smooth edge 4511 and a second smooth edge 4521; the first smooth edge 4511 has a first proximal end close to the first connecting pin 46 and a first distal end far from the first connecting pin 46, and when the first handle 45 contacts the first swing arm 13 through the first smooth edge 4511 and the second smooth edge 4521, and when the first proximal end and the first distal end on the first smooth edge 4511 respectively contact the first swing arm 13, a distance between the first connecting pin 46 and the first swing arm 13 may change, because the first pin body 41 is inserted into the first pin hole 42 on the first swing arm 13 and the first mounting hole 461 through which the first connecting pin 46 passes, the first pin body 41 and the first connecting pin 46 are vertically disposed, so that when the first connecting pin 46 is far from or close to the first swing arm 13, the first connecting pin 46 may drive the first pin body 41 to move along the first pin hole 42, which is very convenient.

In one embodiment, the first shaft body 12 is disposed perpendicular to the first connecting pin 46; in this way, the first handle 45 does not easily cause the first swing arm 13 to rotate about the first shaft body 12 during rotation about the first connecting pin 46. In one embodiment, the second shaft body 22 is disposed perpendicular to the second connecting pin.

In one embodiment, the cross-section of the first handle 45 increases gradually closer to the first connecting pin 46 in the extending direction of the first handle 45. Thus, the contact position of the first connecting pin 46 with the first handle 45 does not easily cause the first connecting pin 46 to be deformed.

In one embodiment, the first shaft body 12 and the second positioning hole 44 are located at the same level.

In one embodiment, the first baffle 481 has first and second plate-like edges in the shape of flat plates, which are located at opposite ends of the first baffle 481, respectively; the first positioning hole 43 or the second positioning hole 44 is located in the extension direction of the first plate-like edge and/or the first positioning hole 43 or the second positioning hole 44 is located in the extension direction of the second plate-like edge. In this way, when the first pin 41 inserted into the first positioning hole 43 or the second positioning hole 44 transmits the external force to the first baffle 481 through the first swing arm 13, the first plate-shaped edge and the second plate-shaped edge can effectively resist the external force. In one embodiment, the shape and function of the first stop 481 (relative to the first pin 41) is the same as the shape and function of the second stop (relative to the second pin).

In one embodiment, the first seat 11 is provided with a plurality of first through holes arranged along a predetermined direction, wherein at least two first through holes are located at two opposite sides of a connecting line between the first plate-shaped edge and the first positioning hole 43, so that when the first pin 41 inserted into the first positioning hole 43 transfers stress with the first plate-shaped edge, the stress is released through the first through holes at the two opposite sides. In one embodiment, at least two first through holes are located on two opposite sides of a connecting line between the second plate-like edge and the first positioning hole 43, so that the stress is released through the first through holes on the two opposite sides when the first pin body 41 and the second plate-like edge are inserted into the first positioning hole 43 to transfer the stress. In one embodiment, the arrangement direction of the plurality of first through holes and the connecting line between the first plate-shaped edge and the first positioning hole 43 form an included angle larger than zero, so that the stress of the first plate-shaped edge is conveniently transferred to different circumferential edge positions on different first through holes. In one embodiment, the arrangement direction of the plurality of first through holes and the connecting line between the second plate-shaped edge and the first positioning hole 43 form an included angle larger than zero, so that the stress of the second plate-shaped edge can be conveniently transferred to different circumferential edge positions on different first through holes. In one embodiment, the second seat 21 is provided with a plurality of second through holes arranged along a predetermined direction, and the second through holes have a function of corresponding to the second baffle and a function of corresponding to the first through holes to the first baffle.

Further, referring to fig. 1 to 8, as a specific embodiment of the rotatable rear protection device of the present invention, a first boss 462 is disposed on the first pin body 41, and the first swing arm 13 is located between the first boss 462 and the first handle 45; the first pin body 41 is sleeved with a first spring 47, and the first spring 47 is clamped between the first boss 462 and the first swing arm 13. Thus, when the first handle 45 pulls the first pin 41 to move, the first spring 47 is compressed when the first boss 462 approaches the first swing arm 13, and when the first handle 45 is released, the first spring 47 pushes the first boss 462 away from the first swing arm 13 during the extension process.

Further, referring to fig. 1 to 8, as an embodiment of the rotatable rear protection device of the present invention, the blocking mechanism further includes: the second pin body and a second pin hole are formed in the second swing arm 23 and used for the second pin body to slide; the extending direction of the second pin hole is parallel to the preset straight line; the second seat body 21 is provided with a third positioning hole and a fourth positioning hole for the second pin body to be clamped in respectively; when the stop lever 3 is positioned at the first rotating position, the second pin body is aligned with the third positioning hole; when the stop lever 3 is located at the second rotation position, the second pin body is aligned with the fourth positioning hole. Thus, a second pin hole is formed in the second swing arm 23, and the second pin body penetrates through the second pin hole and slides along the second pin hole; when the stop lever 3 rotates to the first rotating position, the second pin is inserted into the third positioning hole to prevent the second swing arm 23 from rotating relative to the second seat 21, so that the stop lever 3 can be maintained at the first rotating position; when the stop lever 3 rotates to the second rotation position, the second pin is inserted in the fourth positioning hole to prevent the second swing arm 23 from rotating relative to the second seat 21, so that the stop lever 3 can be maintained at the second rotation position.

Further, referring to fig. 1 to 8, as an embodiment of the rotatable rear protection device of the vehicle according to the present invention, the device further includes: a second handle and a second connecting pin; the second handle is provided with a third plate body part and a fourth plate body part which are arranged in parallel at intervals; the third plate body portion has a third smooth edge in contact with the second swing arm 23, and the fourth plate body portion has a fourth smooth edge parallel to the third smooth edge and in contact with the second swing arm 23; a third assembling hole is formed in the third plate body part, and a fourth assembling hole is formed in the fourth plate body part; the second connecting pin sequentially penetrates through the third assembling hole and the fourth assembling hole; the second pin body is provided with a second mounting hole for the second connecting pin to pass through; the third smooth edge has a second proximal end proximate the second connector pin and a second distal end distal the second connector pin; the second connecting pin is perpendicular to the second pin body. Therefore, the second handle is provided with the second connecting pin, one end of the second connecting pin penetrates through the third assembling hole in the third plate body part, the other end of the second connecting pin penetrates through the fourth assembling hole in the fourth plate body part, and the second connecting pin is very convenient to install; since the third plate body portion has a third smooth edge in contact with the second swing arm 23, the fourth plate body portion has a fourth smooth edge in contact with the second swing arm 23, the third smooth edge being parallel to the fourth smooth edge; the second handle is supported on the second swing arm 23 by a third smooth edge and a fourth smooth edge; the third smooth edge has a second near end close to the second connecting pin and a second far end far from the second connecting pin, the second handle contacts with the second swing arm 23 through the third smooth edge and the fourth smooth edge, when the second near end and the second far end on the third smooth edge contact with the second swing arm 23 respectively, the distance between the second connecting pin and the second swing arm 23 can change, because the second pin body is arranged in the second pin hole on the second swing arm 23 in a penetrating manner, and the second connecting pin passes through the second mounting hole, the second pin body is arranged perpendicular to the second connecting pin, so that when the second connecting pin is far from or close to the second swing arm 23, the second connecting pin can drive the second pin body to move along the second pin hole, which is very convenient.

Further, referring to fig. 1 to 8, as a specific embodiment of the rotatable vehicle rear protecting device provided by the present invention, a second boss is disposed on the second pin, and the second swing arm 23 is located between the second boss and the second handle; the second pin body is sleeved with a second spring, and the second spring is clamped between the second boss and the second swing arm 23. Therefore, in the process that the second handle pulls the second pin body to move, when the second boss is close to the second swing arm 23, the second spring can be compressed, and after the second handle is loosened, the second spring can push the second boss to be far away from the second swing arm 23 in the extending process.

Further, referring to fig. 1 to 8, as an embodiment of the rotatable rear protection device of the present invention, the blocking mechanism further includes: the seat comprises a first baffle 481 arranged on the seat body and provided with a bent edge and a first cushion 482 arranged on the first baffle 481, wherein the first cushion 482 is positioned on a rotating path of a first swing arm 13; when the stopper lever 3 is rotated to the first rotational position, the first swing arm 13 abuts on the first cushion 482. In this way, when the stop lever 3 rotates to the first rotation position, the first swing arm 13 abuts against the first cushion 482, and the first cushion can cushion the impact force of the first swing arm 13; and the first cushion 482 can limit the first swing arm 13.

Further, referring to fig. 1 to 8, as an embodiment of the rotatable rear protection device of the present invention, the blocking mechanism includes: the second baffle plate is arranged on the seat body, the edge of the second baffle plate is bent, and a second cushion pad is arranged on the second baffle plate and is positioned on the rotating path of the second swing arm 23; when the stop lever 3 is rotated to the first rotational position, the second swing arm 23 abuts on the second cushion. Thus, when the stop lever 3 rotates to the second rotation position, the second swing arm 23 abuts against the second cushion pad, and the second cushion can cushion the impact force of the second swing arm 23; and the second swing arm 23 can be limited by the second cushion pad.

Referring to fig. 1 to 8, the present invention also provides a vehicle, including: in the vehicle body having the longitudinal beams and the rotatable rear fender, the first bolt 53 through which the first seat body 11 is fixed to the first longitudinal beam 51, and the second bolt 54 through which the second seat body 21 is fixed to the second longitudinal beam 52. Thus, the first seat 11 can be mounted on the first longitudinal beam 51, and the second seat 21 can be mounted on the second longitudinal beam 52; the first swing arm 13 is pivoted on the first seat 11 through the first shaft body 12, the second swing arm 23 is pivoted on the second seat 21 through the second shaft body 22, and as the first shaft body 12 and the second shaft body 22 extend along the predetermined linear direction respectively, and the stop lever 3 is fixedly connected with the first swing arm 13 and the second swing arm 23, the stop lever 3 can rotate around the predetermined linear direction through the first swing arm 13 and the second swing arm 23; in the process that the stop lever 3 rotates around a preset straight line, the position of the stop lever 3 can be adjusted, so that the stop lever 3 can be conveniently moved; (assuming that the bar 3 rotates in the first direction around the predetermined straight line in the process of rotating the bar 3 from the first rotational position to the second rotational position; assuming that the bar 3 rotates in the second direction around the predetermined straight line in the process of rotating the bar 3 from the second rotational position to the first rotational position; since the first rotational position is located below the second rotational position and the first rotational position is located below the predetermined straight line, the bar 3 is easily maintained at the first rotational position by its own weight when the bar 3 moves from the second rotational position to the first rotational position; when the stop lever 3 is located at the first rotation position and an external object impacts the stop lever 3 in a direction (for example, the second direction) away from the second rotation position, the blocking mechanism can prevent the stop lever 3 from rotating from the second rotation position to the first rotation position, so that the position of the stop lever 3 is stable, and the vehicle is protected.

In one embodiment, the first shaft 12 is connected to the first base 11 by welding and then fixed to the frame assembly by the first bolt 53; the second shaft 22 is connected with the second seat 21 by welding, and then fixed on the frame assembly by a second bolt 54; the stop lever 3 is respectively connected with the first swing arm 13 and the second swing arm 23 through welding and then is arranged on the first shaft body 12 and the second shaft body 22; a first pin body 41 is arranged on the first swing arm 13; a second pin body is mounted on the second swing arm 23.

In one embodiment, the stop lever 3 is made of a steel tube with a thickness of 2.2mm and a tensile limit of more than 1500 MPa. In one embodiment, the bar 3 is circular in cross-section and the bar 3 has a cross-sectional diameter of 120 mm. In one embodiment, the first swing arm 13 is made of a steel plate with a thickness of 8mm and a tensile limit of more than 750 MPa. In one embodiment, the second swing arm 23 is made of a steel plate with a thickness of 8mm and a tensile limit greater than 750 MPa. In one embodiment, the first seat 11 is made of a steel plate with a thickness of 8mm and a tensile limit greater than 750 MPa. In one embodiment, the second seat 21 is made of a steel plate with a thickness of 8mm and a tensile limit greater than 750 MPa.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.