1. The utility model provides an elevator car buffer for the buffering installs the elevator car in the elevator shaft, a serial communication port, elevator car includes the last railway carriage or compartment body, down railway carriage or compartment body and baffle, go up the railway carriage or compartment body with down have the space between the railway carriage or compartment body, the baffle is connected go up the inner wall and the lower extreme of the railway carriage or compartment body and extend to down the inner wall of the railway carriage or compartment body, in order to cover the space, elevator car buffer still includes:

the car buffering mechanism comprises a sliding rod extending from the upper part of the lower carriage body towards the upper carriage body, a first spring part mounted on the sliding rod and a linear bearing mounted on the lower part of the upper carriage body and sleeved on the sliding rod, the lower end of the first spring part is connected with the bottom of the sliding rod, and the lower end of the linear bearing is connected with the first spring part;

the side buffer mechanism comprises a telescopic rod connected with the outer side wall of the upper carriage body or the lower carriage body, a first iron block and a second iron block which are connected with the end parts of the telescopic rod, and a speed sensor installed on the elevator shaft or the lower carriage body, wherein the second iron block is installed on the inner wall of the elevator shaft and is connected with a power-on component, a distance which can be mutually adsorbed is formed between the second iron block and the first iron block, and the power-on component and the speed sensor are both electrically connected with a controller; and

a bottom buffer mechanism, which comprises a plurality of buffer blocks arranged at the bottom of the lower carriage body and lower buffer components corresponding to the buffer blocks one by one, wherein the buffer blocks are made of elastic materials, and is semicircular or elliptic, the lower buffer assembly comprises a lower cylinder body, an upper cylinder body, a second spring part, a third spring part and a buffer arc sheet, the bottom of the lower cylinder is arranged on the upper bottom surface of the elevator shaft, the second spring piece is sleeved on the outer wall of the lower cylinder, the lower end of the second spring piece is connected with the lower cylinder, the upper barrel body is sleeved on the upper part of the lower barrel body, the lower end of the upper barrel body is abutted against the upper end of the second spring part, the third spring part is arranged in the lower cylinder body, one end of the third spring part is connected with the bottom of the lower cylinder body, the other end of the third spring part is connected with the buffering arc piece, the shape of the buffer arc sheet is matched with the buffer block and is arranged at the top of the upper barrel.

2. The elevator car buffering device of claim 1, wherein the sliding rod is mounted to an outer wall of the lower car and the linear bearing is mounted to an outer wall of the upper car.

3. The elevator car buffering device of claim 1, wherein the side buffering mechanism further comprises a switch electrically connected to the energized component, the switch mounted within the elevator car.

4. The elevator car buffer of claim 1, wherein the second iron block is a distance of 0.1cm-50cm from the first iron block.

5. The elevator car buffering device of claim 1, wherein the buffer block comprises a polyethylene housing and a foam filled in the housing, and the buffer arc pieces are made of a polyethylene material.

6. The car buffer of claim 1, further comprising an inner buffer mechanism, wherein the inner buffer mechanism comprises a pedal, a positioning component and a spring component, the pedal is mounted in the lower car body, a buffer cavity is formed between the pedal and the bottom plate of the lower car body, the positioning component comprises a positioning cylinder and a positioning rod, the top of the positioning cylinder is connected with the pedal, the bottom of the positioning rod is connected with the bottom plate of the lower car body, and the positioning rod is disposed corresponding to the positioning cylinder and can extend into the positioning cylinder.

7. The elevator car buffering device of claim 6, wherein a total length of the positioning rod and the positioning barrel is greater than a height of the buffering cavity.

8. The elevator car buffering device of claim 6 or 7, wherein the spring assembly fills the buffer cavity.

9. The elevator car buffering device of claim 6, wherein the spring assembly comprises a steel wire mesh and a plurality of support springs mounted within the steel wire mesh.

10. The utility model provides an elevator car buffer for the buffering installs the elevator car in the elevator shaft, a serial communication port, elevator car includes the last railway carriage or compartment body, down railway carriage or compartment body and baffle, go up the railway carriage or compartment body with down have the space between the railway carriage or compartment body, the baffle is connected go up the inner wall and the lower extreme of the railway carriage or compartment body and extend to down the inner wall of the railway carriage or compartment body, in order to cover the space, elevator car buffer still includes:

the car buffering mechanism comprises a sliding rod extending from the upper part of the lower carriage body towards the upper carriage body, a first spring part mounted on the sliding rod and a linear bearing mounted on the lower part of the upper carriage body and sleeved on the sliding rod, the lower end of the first spring part is connected with the bottom of the sliding rod, and the lower end of the linear bearing is connected with the first spring part;

the inner buffer mechanism comprises a pedal, a positioning assembly and a spring assembly which are arranged in the lower carriage body, a buffer cavity is formed between the pedal and a bottom plate of the lower carriage body, the positioning assembly comprises a positioning barrel and a positioning rod, the top of the positioning barrel is connected with the pedal, the bottom of the positioning rod is connected with the bottom plate of the lower carriage body, and the positioning rod is arranged corresponding to the positioning barrel and can extend into the positioning barrel; and

a bottom buffer mechanism, which comprises a plurality of buffer blocks arranged at the bottom of the lower carriage body and lower buffer components corresponding to the buffer blocks one by one, wherein the buffer blocks are made of elastic materials, and is semicircular or elliptic, the lower buffer assembly comprises a lower cylinder body, an upper cylinder body, a second spring part, a third spring part and a buffer arc sheet, the bottom of the lower cylinder is arranged on the upper bottom surface of the elevator shaft, the second spring piece is sleeved on the outer wall of the lower cylinder, the lower end of the second spring piece is connected with the lower cylinder, the upper barrel body is sleeved on the upper part of the lower barrel body, the lower end of the upper barrel body is abutted against the upper end of the second spring part, the third spring part is arranged in the lower cylinder body, one end of the third spring part is connected with the bottom of the lower cylinder body, the other end of the third spring part is connected with the buffering arc piece, the shape of the buffer arc sheet is matched with the buffer block and is arranged at the top of the upper barrel.

Background

The elevator is used as a transportation tool for vertical transportation in a high-rise building, the safety protection of the elevator is improved day by day after hundreds of years of development, however, due to various reasons, the elevator falling bottom-squatting accident still happens sometimes, and once the bottom-squatting accident happens, the elevator can cause huge damage to passengers, and even can endanger life safety.

The buffer of current elevator can only just take place the effect bottom the well at the goods lift, and can't fall the speed that the in-process made the elevator at the elevator and reduce, if the elevator falls the speed at the excessive speed, even there is buffer the well bottom, probably also be difficult to avoid stranded personnel injured.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides an elevator car buffer device.

The invention realizes the purpose through the following technical scheme:

the utility model provides an elevator car buffer for the buffering installs the elevator car in the elevator shaft, elevator car includes the carriage body, down carriage body and baffle, go up the carriage body with have the space down between the carriage body, the baffle is connected the inner wall and the lower extreme of the carriage body of going up extend to the inner wall of the carriage body down, in order to cover the space, elevator car buffer still includes:

the car buffering mechanism comprises a sliding rod extending from the upper part of the lower carriage body towards the upper carriage body, a first spring part mounted on the sliding rod and a linear bearing mounted on the lower part of the upper carriage body and sleeved on the sliding rod, the lower end of the first spring part is connected with the bottom of the sliding rod, and the lower end of the linear bearing is connected with the first spring part;

the side buffer mechanism comprises a telescopic rod connected with the outer side wall of the upper carriage body or the lower carriage body, a first iron block and a second iron block which are connected with the end parts of the telescopic rod, and a speed sensor installed on the elevator shaft or the lower carriage body, wherein the second iron block is installed on the inner wall of the elevator shaft and is connected with a power-on component, a distance which can be mutually adsorbed is formed between the second iron block and the first iron block, and the power-on component and the speed sensor are both electrically connected with a controller; and

a bottom buffer mechanism, which comprises a plurality of buffer blocks arranged at the bottom of the lower carriage body and lower buffer components corresponding to the buffer blocks one by one, wherein the buffer blocks are made of elastic materials, and is semicircular or elliptic, the lower buffer assembly comprises a lower cylinder body, an upper cylinder body, a second spring part, a third spring part and a buffer arc sheet, the bottom of the lower cylinder is arranged on the upper bottom surface of the elevator shaft, the second spring piece is sleeved on the outer wall of the lower cylinder, the lower end of the second spring piece is connected with the lower cylinder, the upper barrel body is sleeved on the upper part of the lower barrel body, the lower end of the upper barrel body is abutted against the upper end of the second spring part, the third spring part is arranged in the lower cylinder body, one end of the third spring part is connected with the bottom of the lower cylinder body, the other end of the third spring part is connected with the buffering arc piece, the shape of the buffer arc sheet is matched with the buffer block and is arranged at the top of the upper barrel.

Foretell elevator car buffer, the car buffer gear has been set up, buffer gear and end buffer gear at the bottom of the side, car buffer gear can move at ordinary times and fall the in-process and absorb the impulsive force, end buffer gear can move at ordinary times and fall the in-process and cushion, make the elevator descend the in-process and obtain slowing down and buffering, the safety of the people in the protection elevator, side buffer gear starts when the elevator takes place to fall, absorb the impulsive force of elevator through magnetic attraction edgewise, thereby slow down the falling speed of elevator, the safety of protection people.

In one embodiment, the sliding rod is mounted on an outer wall of the lower carriage body, and the linear bearing is mounted on an outer wall of the upper carriage body.

In one embodiment, the side buffering mechanism further comprises a switch electrically connected to the energizing component, the switch being mounted within the elevator car.

In one embodiment, the second iron block and the first iron block have a distance of 0.1cm-50 cm.

In one embodiment, the buffer block comprises a polyethylene shell and a foam body filled in the shell, and the buffer arc sheet is made of a polyethylene material.

In one embodiment, the elevator car buffering device further includes an inner buffering mechanism, the inner buffering mechanism includes a pedal, a positioning assembly and a spring assembly, the pedal is mounted in the lower car body, a buffering cavity is formed between the pedal and a bottom plate of the lower car body, the positioning assembly includes a positioning cylinder and a positioning rod, the bottom of the positioning cylinder is connected to the bottom plate of the lower car body, the top of the positioning rod is connected to the pedal, and the positioning rod is disposed corresponding to the positioning cylinder and can extend into the positioning cylinder.

In one embodiment, a total length of the positioning rod and the positioning cylinder is greater than a height of the buffer cavity.

In one embodiment, the spring assembly fills the buffer cavity.

In one embodiment, the spring assembly includes a steel wire mesh and a plurality of support springs installed in the steel wire mesh.

The invention also provides an elevator car buffer device, which is used for buffering an elevator car installed in an elevator shaft, wherein the elevator car comprises an upper car body, a lower car body and a baffle plate, a gap is formed between the upper car body and the lower car body, the baffle plate is connected with the inner wall of the upper car body, the lower end of the baffle plate extends to the inner wall of the lower car body so as to cover the gap, and the elevator car buffer device further comprises:

the car buffering mechanism comprises a sliding rod extending from the upper part of the lower carriage body towards the upper carriage body, a first spring part mounted on the sliding rod and a linear bearing mounted on the lower part of the upper carriage body and sleeved on the sliding rod, the lower end of the first spring part is connected with the bottom of the sliding rod, and the lower end of the linear bearing is connected with the first spring part;

the inner buffer mechanism comprises a pedal, a positioning assembly and a spring assembly which are arranged in the lower carriage body, a buffer cavity is formed between the pedal and a bottom plate of the lower carriage body, the positioning assembly comprises a positioning barrel and a positioning rod, the top of the positioning barrel is connected with the pedal, the bottom of the positioning rod is connected with the bottom plate of the lower carriage body, and the positioning rod is arranged corresponding to the positioning barrel and can extend into the positioning barrel; and

a bottom buffer mechanism, which comprises a plurality of buffer blocks arranged at the bottom of the lower carriage body and lower buffer components corresponding to the buffer blocks one by one, wherein the buffer blocks are made of elastic materials, and is semicircular or elliptic, the lower buffer assembly comprises a lower cylinder body, an upper cylinder body, a second spring part, a third spring part and a buffer arc sheet, the bottom of the lower cylinder is arranged on the upper bottom surface of the elevator shaft, the second spring piece is sleeved on the outer wall of the lower cylinder, the lower end of the second spring piece is connected with the lower cylinder, the upper barrel body is sleeved on the upper part of the lower barrel body, the lower end of the upper barrel body is abutted against the upper end of the second spring part, the third spring part is arranged in the lower cylinder body, one end of the third spring part is connected with the bottom of the lower cylinder body, the other end of the third spring part is connected with the buffering arc piece, the shape of the buffer arc sheet is matched with the buffer block and is arranged at the top of the upper barrel.

Foretell elevator car buffer, the car buffer gear has been set up, buffer gear at the bottom of side buffer gear and, car buffer gear can move at ordinary times and fall the in-process and absorb the impulsive force, end buffer gear can move at ordinary times and fall the in-process and cushion, make the elevator descend the in-process and obtain slowing down and buffering, protect the safety of the people in the elevator, interior buffer gear cushions the falling speed of human body in the elevator through falling, people's speed also increases thereupon when preventing the elevator, absorb the elevator and apply in human impulsive force, thereby the safety of protection people.

Drawings

Fig. 1 is a schematic structural view of an elevator car buffering device according to an embodiment of the present invention;

FIG. 2 is an enlarged view at A in FIG. 1;

fig. 3 is a schematic view of another perspective of the car buffer of fig. 1;

FIG. 4 is an enlarged view at B in FIG. 3;

fig. 5 is a top view of the elevator car buffering device of fig. 1;

FIG. 6 is a cross-sectional view taken along line D-D of FIG. 5;

FIG. 7 is an enlarged view at C in FIG. 3;

fig. 8 is a top view of a lower buffer assembly of the elevator car buffer of fig. 1;

FIG. 9 is a sectional view taken along line E-E of FIG. 5;

fig. 10 is a schematic view of the structure of the car buffering mechanism of fig. 1, with the car removed with portions of the side panels and doors;

fig. 11 is a schematic view of the arrangement of the car buffer of fig. 10 with the lower buffer assembly pedal separated from the car;

fig. 12 is a schematic view of the structure of an elevator car of the elevator car buffering mechanism of fig. 1;

fig. 13 is a sectional view taken along line F-F of fig. 5.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, specific embodiments thereof will be described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of 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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

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 intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, an elevator car buffering device 100 according to an embodiment of the present invention is configured to buffer an elevator car 20 installed in an elevator shaft 10, where the elevator car 20 includes an upper car body 21, a lower car body 22, and a baffle 23, a gap is formed between the upper car body 21 and the lower car body 22, the baffle 23 is connected to an inner wall of the upper car body 21, and a lower end of the baffle 23 extends to an inner wall of the lower car body 22 to cover the gap, and the elevator car buffering device 100 further includes a car buffering mechanism 30, a side buffering mechanism 40, and a bottom buffering mechanism 50, where the car buffering mechanism 30, the side buffering mechanism 40, and the bottom buffering mechanism 50 can buffer or decelerate the elevator car 20, so as to protect safety of people in the elevator car 20.

Referring to fig. 2, the car buffering mechanism 30 includes a sliding rod 31 extending from an upper portion of the lower car 22 toward the upper car 21, a first spring 32 mounted on the sliding rod 31, and a linear bearing 33 mounted on a lower portion of the upper car 21 and sleeved on the sliding rod 31, wherein a lower end of the first spring 32 is connected to a bottom portion of the sliding rod 31, and a lower end of the linear bearing 33 is connected to an upper end of the first spring 32.

When the elevator normally moves, the sliding rod 31 slides in the linear bearing 33, and the first spring element 32 extends and contracts in a normal range; when the elevator is abnormally dropped, the speed of the upper carriage body 21 is increased, the linear bearing 33 rapidly moves downwards at the moment to compress the first spring part 32, and the compression force of the first spring part 32 impacts a part of impact force, so that the speed reduction effect is generated, and a certain protection effect is provided for people in the lower carriage body 22.

Wherein, the quantity of car buffer gear 30 is a plurality of, distributes in the outer wall of elevator car 20, can make elevator car 20 operation more stable like this. The first spring part 32 is a thick spring with high hardness, so that the bearing strength of the spring part is ensured.

Further, the car buffer mechanism 30 further includes an upper mounting seat 24 and a lower mounting seat 25, the upper car body 21 is provided with the upper mounting seat 24, the linear bearing 33 is mounted in the upper mounting seat 24, the lower car body 22 is provided with the lower mounting seat 25, and the lower portion of the slide rod 31 or the slide rod 31 is mounted in the lower mounting seat 25. With this structure, the stability of the car buffer mechanism 30 can be further ensured.

Referring to fig. 4 and 6, the side buffering mechanism 40 includes a telescopic rod 41 connected to an outer side wall of the upper car 21 or the lower car 22, a first iron block 42 connected to an end of the telescopic rod 41, a second iron block 43, and a speed sensor 44 installed in the elevator shaft 10 or the lower car 22, the second iron block 43 is installed on an inner wall of the elevator shaft 10 and connected to a power transmission member, the second iron block 43 and the first iron block 42 have a distance capable of being attracted to each other, and the power transmission member and the speed sensor 44 are electrically connected to a controller. The speed sensor 44 is used for detecting the falling speed of the elevator car 20, and when the falling speed is normal, the side buffer mechanism 40 is not started; when the falling speed is greater than the normal limit speed, the controller receives a signal of the speed sensor 44, controls the electrified part to be opened, and conducts electricity to the second iron block 43, the second iron block 43 generates magnetism after being electrified, magnetic attraction is generated to the first iron block 42, the telescopic rod 41 stretches and retracts accordingly, and therefore the impact force of the falling of the elevator car 20 is absorbed, and the falling speed of the elevator car 20 is reduced.

Wherein, telescopic link 41 includes first telescopic link 410, second telescopic link 411 and third telescopic link 412, and first telescopic link 410 is on a parallel with the bottom surface of elevartor shaft, and elevator car 20 is connected to one end, and first iron plate 42 is connected to the other end, and second telescopic link 411 and third telescopic link 412 put to one side respectively, and elevator car 20 is connected to one end, and first iron plate 42 is connected to the other end to make second telescopic link 411 and third telescopic link 412 form the triangle-shaped. The telescopic rod 41 has a more stable structure, so that the elevator car 20 can be more stably pulled to cause the elevator car 20 to decelerate. The second telescopic rod 411 may be a common telescopic rod, or an air cylinder or a hydraulic cylinder.

The telescopic rods 41 may be all disposed on the upper compartment 21 or the lower compartment 22, or the first telescopic rod 410 may be disposed on the upper compartment 21, the third telescopic rod 412 may be disposed on the lower compartment 22, and the second telescopic rod 411 may be disposed on the upper compartment 21 or the lower compartment 22. In this embodiment, the telescoping rod 41 is disposed on the lower car 22 to dampen the force of the elevator car 20 as the elevator car 20 descends near the bottom of the hoistway 10. The figure shows the case where the first telescopic rod 410 is provided on the upper carriage 21 and the third telescopic rod 412 is provided on the lower carriage 22.

The energizing member may include an electric wire and a charger or other circuit member connected to the electric wire, so as to energize the second iron block 43.

The second iron block 43 is spaced from the first iron block 42 by a distance of 0.1cm to 50 cm. This distance ensures sufficient suction between the second iron block 43 and the first iron block 42.

Further, the side buffering mechanism 40 also includes a switch electrically connecting the electrical components, the switch being installed in the elevator car 20. Passengers in elevator cab 20 may also depress the switch to control elevator cab 20 deceleration when elevator cab 20 is abnormally dropped.

Further, an accommodating groove is formed in the inner wall of the elevator shaft 10, and the second iron block 43 is mounted in the accommodating groove.

In general, the magnetic attraction between the second iron block 43 and the first iron block 42 can be used for reducing the falling speed of the elevator car 20, and the elevator car 20 cannot be directly stopped; if the weight of the elevator car 20 is light, even when the elevator car stops under the action of magnetic attraction, the controller can automatically sense, the electrified part is controlled to be disconnected, the electrification of the second iron block 43 is finished, and therefore the elevator car 20 runs again.

Referring to fig. 6, the bottom buffer mechanism 50 includes a plurality of buffer blocks 51 installed at the bottom of the lower car body 22 and lower buffer assemblies 52 corresponding to the buffer blocks 51 one by one, the buffer block 51 is made of an elastic material and is semicircular or elliptical, referring to fig. 7 and 9, the lower buffer component 52 comprises a lower cylinder 53, an upper cylinder 54, a second spring part 55, a third spring part 56 and a buffer arc sheet 57, the bottom of the lower cylinder 53 is mounted on the upper bottom surface of the elevator shaft 10, the second spring part 55 is sleeved on the outer wall of the lower cylinder 53, the lower end of the lower cylinder 53 is connected with the lower cylinder 53, the upper cylinder 54 is sleeved on the upper portion of the lower cylinder 53, the lower end of the upper cylinder 54 is abutted against the upper end of the second spring part 55, the third spring part 56 is mounted in the lower cylinder 53, one end of the third spring part 56 is connected with the bottom of the lower cylinder 53, the other end of the third spring part is connected with the buffer arc sheet 57, and the buffer arc sheet 57 is matched with the buffer block 51 in shape and mounted on the top of the upper cylinder 54. When the elevator descends to the bottom, no matter normally descend or accelerate to descend, the bottom buffering mechanism 50 can play a buffering role, and the action principle is as follows: when the buffer block 51 deforms sufficiently, the upper cylinder 54 presses down to compress the second spring member 55, thereby further absorbing the impact force until the elevator car 20 stops descending.

The material hardness of the third spring member 56 is greater than the material hardness of the second spring member 55 to provide better support for the entire lower damping assembly 52.

In one embodiment, the buffer block 51 comprises a polyethylene shell and a foam filled in the shell, and the buffer arc 57 is made of a polyethylene material.

Referring to fig. 9, further, a positioning post 570 is protruded from the bottom of the buffering arc plate 57 toward the lower cylinder 53, and the positioning post 570 extends into the third spring member 56, so that the buffering arc plate 57 is more stably connected to the third spring member 56.

Referring to fig. 10, further, the above-mentioned elevator car buffering device 100 further includes an inner buffering mechanism 60, referring to fig. 11 and 13, the inner buffering mechanism 60 includes a pedal 61, a positioning assembly 62 and a spring assembly 63 installed in the lower car body 22, a buffering cavity 64 is formed between the pedal 61 and the bottom plate of the lower car body 22, the positioning assembly 62 includes a positioning cylinder 65 and a positioning rod 66, the top of the positioning cylinder 65 is connected with the pedal 61, the bottom of the positioning rod 66 is connected with the bottom plate of the lower car body 22, and the positioning rod 66 is disposed corresponding to the positioning cylinder 65 and can extend into the positioning cylinder 65.

Referring to fig. 11, in an embodiment, a total length of the positioning rod 66 and the positioning cylinder 65 is greater than a height of the buffer cavity 64. When the positioning rod 66 does not extend into the positioning cylinder 65, the spring assembly 63 is in a natural extension state; when the number of people who take the elevator is large and a certain mass is reached, the spring assembly 63 compresses to buffer the weight; when the elevator car 20 is accelerated and dropped, the passengers inside also have a downward acceleration, and the spring assembly 63 can absorb the downward impact of the passengers, thereby protecting the passengers.

Referring to fig. 11 and 13, in one embodiment, the spring assembly 63 fills the buffer cavity 64. Of course, in other embodiments, the spring assembly 63 may occupy part of the buffer cavity 64, and the purpose can be achieved, but the buffer effect is better when the spring assembly 63 is filled with the buffer cavity 64.

In one embodiment, the spring assembly 63 includes a steel wire mesh (not shown) and a plurality of supporting springs mounted in the steel wire mesh. This spring unit 63's structure is similar to the structure of spring unit in the mattress, and the wire net can play the supporting role to supporting spring, prevents under the supporting spring couch and do not support the power inadequately.

Foretell elevator car buffer, the car buffer gear has been set up, buffer gear and end buffer gear at the bottom of the side, car buffer gear can move at ordinary times and fall the in-process and absorb the impulsive force, end buffer gear can move at ordinary times and fall the in-process and cushion, make the elevator descend the in-process and obtain slowing down and buffering, the safety of the people in the protection elevator, side buffer gear starts when the elevator takes place to fall, absorb the impulsive force of elevator through magnetic attraction edgewise, thereby slow down the falling speed of elevator, the safety of protection people.

The above structures may be combined arbitrarily, and will be further described below by way of examples.

Example one

The present embodiment provides an elevator car buffering device, which is used for buffering an elevator car 20 installed in an elevator shaft 10, wherein the elevator car 20 includes an upper car body 21, a lower car body 22 and a baffle 23, a gap is formed between the upper car body 21 and the lower car body 22, the baffle 23 connects an inner wall of the upper car body 21, and a lower end of the baffle extends to an inner wall of the lower car body 22 to cover the gap, and the elevator car buffering device includes the car buffering mechanism 30, a side buffering mechanism 40 and a bottom buffering mechanism 50.

Example two

The present embodiment provides an elevator car buffering device, which is used for buffering an elevator car 20 installed in an elevator shaft 10, wherein the elevator car 20 includes an upper car body 21, a lower car body 22 and a baffle 23, a gap is formed between the upper car body 21 and the lower car body 22, the baffle 23 connects an inner wall of the upper car body 21, and a lower end of the baffle extends to an inner wall of the lower car body 22 to cover the gap, and the elevator car buffering device includes the car buffering mechanism 30, an inner buffering mechanism 60 and a bottom buffering mechanism 50.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.