1. An integrated electronic parking mechanism, comprising:

the ratchet wheel comprises a plurality of locking grooves which are annularly distributed and are used for controlling the locking and unlocking of the gearbox;

a guide rail bracket pawl drive assembly;

a main rotating shaft;

the guide rail bracket and pawl driving assembly comprises a guide rail bracket, a pawl, a cam assembly and a linear push rod assembly;

the pawl comprises a pawl protruding part and a pivoting end, the pivoting end is connected with the mounting side of the guide rail bracket, and the pawl protruding part performs revolving motion through the pivoting end;

the pivoting end is provided with a return torsion spring which keeps the unlocking position of the pawl from accidentally entering the locking groove of the ratchet wheel;

the cam of the cam component drives the pawl lobe to enter the locking groove of the ratchet wheel;

the cam assembly is connected with the output end of the linear push rod assembly, and the input end of the linear push rod assembly protrudes out of the guide rail bracket and is provided with an input structure;

the output end of the main rotating shaft is provided with an input gear, and the input gear is meshed with the input structure and drives the linear push rod assembly to linearly move.

2. An integrated electronic parking mechanism as claimed in claim 1, wherein: the linear push rod assembly comprises a push rod and a transmission rod, the connection position of the push rod and the transmission rod is fixedly connected through a fixing pin, the output end of the push rod is connected with the cam assembly, the input end of the transmission rod protrudes outwards from the guide rail support and is provided with a linear rack, and the input gear is meshed with and connected with the linear rack.

3. An integrated electronic parking mechanism as claimed in claim 2, wherein: the cam component comprises an installation frame, a cam guide outer frame and a cam, wherein the cam is fixedly installed on the installation frame, the cam guide outer frame and a corresponding area of the guide support form an integral framework, the guide outer frame is provided with a linear guide groove, a side cam shaft of the cam is embedded in the linear guide groove to be arranged, and the push rod is inserted into a stress end face of the installation frame, which faces the push rod.

4. An integrated electronic parking mechanism as claimed in claim 2, wherein: one end of the guide rail bracket, which is close to the main rotating shaft, is provided with a bending guide plate, a guide groove is formed in the bending guide plate, the guide groove is formed in a shape of the transmission rod in a copying mode, and the middle of the transmission rod penetrates through the guide groove to be arranged.

5. An integrated electronic parking mechanism as claimed in claim 4, wherein: one end of the transmission rod, which is far away from the main rotating shaft, is positioned in the surface area of the guide support and is provided with a guide supporting block, the corresponding end of the push rod is supported on the guide supporting block and is fixedly connected with the positioning hole of the transmission rod, the output end of the push rod is sleeved with a linear spring, one end of the linear spring is jacked on the stressed end surface, and the other end of the linear spring is jacked on the guide supporting block.

6. An integrated electronic parking mechanism as claimed in claim 1, wherein: the cam is driven forward in a straight line to press the upper surface of the pawl protruding part, and the pawl protruding part is pressed towards the locking groove to finish locking operation.

7. An integrated electronic parking mechanism as claimed in claim 1, wherein: and a side convex limiting screw is further arranged in the radial direction of the main rotating shaft.

8. An integrated electronic parking mechanism as claimed in claim 3, wherein: the thickness area of the pawl is located within the width of the mounting frame.

Background

Along with the development of automobile technology, the attention degree of people to vehicle safety increases gradually, and P shelves parking system can lock the vehicle when the vehicle stops or when speed is lower, prevents that the vehicle from taking place to roll over when the slope and causing the incident, promotes the security performance. The existing electronic parking mechanism needs to be independently assembled by a ratchet wheel, a pawl, a push rod, a corresponding parking spring and a corresponding spring limiting assembly during assembly, so that the electronic parking mechanism is complex to assemble, subsequent disassembly and assembly operations are not utilized, the process cost is increased, and the quality risk of being not installed in place exists.

Disclosure of Invention

In view of the above problems, the present invention provides an integrated electronic parking mechanism, which enables quick and convenient assembly and disassembly, and reduces process cost and quality risk.

A compact electronic parking mechanism, comprising:

the ratchet wheel comprises a plurality of locking grooves which are annularly distributed and are used for controlling the locking and unlocking of the gearbox;

a guide rail bracket pawl drive assembly;

a main rotating shaft;

the guide rail bracket and pawl driving assembly comprises a guide rail bracket, a pawl, a cam assembly and a linear push rod assembly;

the pawl comprises a pawl protruding part and a pivoting end, the pivoting end is connected with the mounting side of the guide rail bracket, and the pawl protruding part performs revolving motion through the pivoting end;

the pivoting end is provided with a return torsion spring which keeps the unlocking position of the pawl from accidentally entering the locking groove of the ratchet wheel;

the cam of the cam component drives the pawl lobe to enter the locking groove of the ratchet wheel;

the cam assembly is connected with the output end of the linear push rod assembly, and the input end of the linear push rod assembly protrudes out of the guide rail bracket and is provided with an input structure;

the output end of the main rotating shaft is provided with an input gear, and the input gear is meshed with the input structure and drives the linear push rod assembly to linearly move.

It is further characterized in that:

the linear push rod assembly comprises a push rod and a transmission rod, the connection position of the push rod and the transmission rod is fixedly connected through a fixing pin, the output end of the push rod is connected with the cam assembly, the input end of the transmission rod protrudes out of the guide rail bracket and is provided with a linear rack, and the input gear is meshed with the linear rack;

the cam assembly comprises an installation frame, a cam guide outer frame and a cam, wherein the cam is fixedly arranged on the installation frame, the cam guide outer frame and a corresponding area of the guide support form an integral framework, the guide outer frame is provided with a linear guide groove, a side cam shaft of the cam is embedded in the linear guide groove, and the push rod is inserted in a stressed end face, facing the push rod, of the installation frame;

one end, close to the main rotating shaft, of the guide rail bracket is provided with a bending guide plate, a guide groove is formed in the bending guide plate, the guide groove is arranged in a shape of the transmission rod in a profiling mode, and the middle of the transmission rod penetrates through the guide groove to be arranged, so that the transmission rod is guaranteed to be provided with a guide support;

one end of the transmission rod, which is far away from the main rotating shaft, is positioned in the surface area of the guide support and is provided with a guide supporting block, the corresponding end of the push rod is supported on the guide supporting block and is fixedly connected with a positioning hole of the transmission rod, the output end of the push rod is sleeved with a linear spring, one end of the linear spring is jacked on the stressed end surface, and the other end of the linear spring is jacked on the guide supporting block, so that the stability and reliability of the whole structure are ensured;

the cam is driven forwards in a linear mode and is used for pressing the upper surface of the pawl protruding part, and the pawl protruding part is pressed towards the locking groove to complete locking operation;

preferably, a side convex limiting screw is further arranged in the radial direction of the main rotating shaft, and the limiting screw is used for quickly limiting and assembling the main rotating shaft in the height direction;

preferably, the thickness area of the pawl is located within the width of the mounting frame, ensuring that the two sides of the pawl are again restrained by the mounting frame.

After adopting above-mentioned technical scheme, rail brackets, pawl, cam subassembly, the sharp catch bar subassembly of rail brackets pawl drive assembly are assembled in advance and are accomplished, only need with the rail brackets rigid coupling on the automobile body, and whole electron parking mechanism only needs carry out the equipment of ratchet, rail brackets pawl drive assembly, main rotating shaft three and automobile body promptly, and it makes the equipment swift convenient with the dismantlement, has reduced process cost and quality risk.

Drawings

FIG. 1 is a first perspective view of the present invention;

FIG. 2 is a second perspective view of the present invention;

FIG. 3 is a front view cross-sectional view of the present invention;

FIG. 4 is an assembly schematic view of the mounting frame and cam of FIG. 1 at A of the present invention;

the names corresponding to the sequence numbers in the figure are as follows:

ratchet 100, guide rail bracket pawl driving assembly 200, main rotating shaft 300 and input gear 301

The locking device comprises a locking groove 10, a guide rail bracket 20, a bending guide plate 21, a guide groove 22, a pawl 30, a pawl boss 31, a pivoting end 32, a rotating shaft 33, a guide pressing surface 34, a pressing surface 35, a cam component 40, a cam 41, a side cam shaft 411, a mounting frame 42, a force-bearing end surface 421, a cam guide outer frame 43, a linear guide groove 431, an inner side plate 44, an outer side cover plate 45, a cam mounting cavity 46, a linear push rod component 50, a push rod 51, a transmission rod 52, a guide supporting block 521, a fixing pin 53, a linear rack 54, a return torsion spring 60, a linear spring 70 and a limiting screw 80.

Detailed Description

A compact electronic parking mechanism, see fig. 1-4, comprising a ratchet 100, a guide rail bracket pawl driving assembly 200, a main shaft 300;

the ratchet 100 comprises a plurality of locking grooves 10 which are annularly distributed and are used for controlling the locking and unlocking of the gearbox;

the rail bracket pawl drive assembly 200 includes a rail bracket 20, a pawl 30, a cam assembly 40, a linear pusher arm assembly 50; the pawl 30 comprises a pawl bulge part 31 and a pivoting end 32, the pivoting end 32 is connected with the installation side of the guide rail bracket 20 through a rotating shaft 33, and the pawl bulge part 31 performs revolving motion through the pivoting end; the rotating shaft 33 is provided with a return torsion spring 60, and the return torsion spring 60 keeps the pawl unlocking position from accidentally entering the locking groove 10 of the ratchet 100;

the cam 41 of the cam assembly 40 drives the pawl boss 31 into the lock attachment groove 10 of the parking ratchet 100;

the cam assembly 40 is connected to the output end of the linear push rod assembly 50, the input end of the linear push rod assembly 50 protrudes out of the guide rail bracket 20 and is provided with an input structure,

the output end of the main rotating shaft 300 is provided with an input gear 301, and the input gear 301 is engaged with the input structure to drive the linear push rod assembly 50 to linearly move.

In the specific implementation: the linear push rod assembly 50 comprises a push rod 51 and a transmission rod 52, the connection positions of the push rod 51 and the transmission rod 52 are fixedly connected through a fixing pin 53, the output end of the push rod 51 is connected with the cam assembly 40, the input end of the transmission rod 52 protrudes out of the guide rail bracket and is provided with a linear rack 54, and the input gear 301 is meshed with the linear rack 54; the gear and rack transmission precision is reliable, and the operation is reliable and accurate.

The cam assembly 40 comprises a mounting frame 42, a cam guide outer frame 43 and a cam 41, wherein the cam 41 is fixedly arranged on the mounting frame 42, the cam guide outer frame 43 and the corresponding area of the guide bracket 20 form an integral framework, the guide outer frame 43 is provided with a linear guide groove 431, a side cam shaft 411 of the cam 41 is arranged in a manner of being embedded in the linear guide groove 431, and a thrust rod 51 is inserted into a force bearing end surface 421, facing to a thrust rod 51, of the mounting frame 42.

In a specific embodiment, one end of the guide rail bracket 20 close to the main rotating shaft 300 is provided with a bending guide plate 21, a guide groove 22 is arranged in the bending guide plate 21, the guide groove 22 is arranged in a shape of the transmission rod 52, and the middle part of the transmission rod 52 penetrates through the guide groove 22 to ensure that the transmission rod 52 has a guide support;

one end of the transmission rod 52, which is far away from the main rotating shaft 300, is positioned in the surface area of the guide bracket 20 and is provided with a guide supporting block 521, the corresponding end of the push rod 51 is supported on the guide supporting block 521 and is fixedly connected with a positioning hole of the transmission rod 51, the output end of the push rod 51 is sleeved with a linear spring 70, one end of the linear spring 70 is abutted to a stressed end surface 421, the other end of the linear spring 70 is abutted to the guide supporting block 521, so that the whole structure is stable and reliable, and the linear spring 70 is used for buffering and energy storage;

in the specific implementation process, the mounting frame 42 includes an inner side plate 44 and an outer side cover plate 45, the outer side cover plate 45 covers the inner side plate 44 to form a cam mounting cavity 46, a force-bearing end surface 421 is arranged on the outer side cover plate 45, the cam includes two side protruding shafts 411, and the number of the linear guide grooves 431 is two that are arranged in parallel up and down, so that the cam 41 can only move in the linear direction.

The cam 41 linearly drives forward the upper surface for press-attaching the click boss 31 provided with the guide press-attaching surface 34 and the press-attaching surface 35, and the click boss 31 is press-attached toward the lock-attaching groove 10 to complete the lock-attaching work.

In specific implementation, a side convex limiting screw 80 is further arranged in the radial direction of the main rotating shaft 300, and the limiting screw 80 is used for rapidly limiting and assembling the main rotating shaft 300 in the height direction.

In particular, the thickness area of the pawl 30 is within the width of the mounting frame 42, ensuring that the sides of the pawl 30 are again restrained by the mounting frame 42.

Its theory of operation is as follows, and rail brackets, pawl, cam subassembly, the sharp catch bar subassembly of rail brackets pawl drive assembly are assembled in advance and are accomplished, only need with the rail brackets rigid coupling on the automobile body, and whole electron parking mechanism only needs to carry out the equipment of ratchet, rail brackets pawl drive assembly, main rotating shaft three and automobile body promptly, and it makes the equipment swift convenient with the dismantlement, has reduced process cost and quality risk.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.