CN111731059A

CN111731059A - Automobile swing arm with reinforced buffering anti-collision structure

Info

Publication number: CN111731059A
Application number: CN202010500272.3A
Authority: CN
Inventors: 沈百庆; 朱惠全; 祁建良; 沈永祥; 潘志强; 韩贵清
Original assignee: SOMIC AUTOMOTIVE COMPONENTS CO Ltd
Current assignee: SOMIC AUTOMOTIVE COMPONENTS CO Ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2020-10-02
Anticipated expiration: 2040-06-04
Also published as: CN111731059B

Abstract

The invention discloses an automobile swing arm with a reinforced buffering anti-collision structure, which comprises a swing arm body, wherein one end of the swing arm body is fixedly connected with a ball pin assembly through a connecting piece, the other end of the swing arm body is provided with a rear bushing assembly, one end of the swing arm body, which is far away from the ball pin assembly and the rear bushing assembly, is provided with a front bushing assembly, a connecting rod is arranged inside the front bushing assembly, two ends of the connecting rod are connected with mounting sleeves, one end of each mounting sleeve, which is far away from the connecting rod, is fixedly connected with a mounting block, and the surface of each mounting block is provided with a mounting hole. Has the advantages that: this automobile swing arm not only has crashproof structure, strengthens the buffering crashproof ability of swing arm, can cushion the impact when the swing arm receives the striking, reduces the impaired possibility of swing arm to the life of extension swing arm, and the installation angle of bush before the convenient adjustment, thereby the installation that makes the front liner target in place, thereby improves the commonality of swing arm.

Description

Automobile swing arm with reinforced buffering anti-collision structure

Technical Field

The invention relates to the technical field of automobile swing arms, in particular to an automobile swing arm with a reinforced buffering anti-collision structure.

Background

The suspension system is a general term for all force-transmitting connecting devices between a frame and an axle or a wheel of an automobile, and has the functions of transmitting force and torque acting between the wheel and the frame, buffering impact force transmitted to the frame or an automobile body from an uneven road surface and attenuating vibration caused by the impact force so as to ensure that the automobile can run smoothly.

The automobile swing arm is the key structure part in the automobile suspension system, mainly constitute by the bush or the axle sleeve at both ends and the bracing piece structure in centre, mainly be the effect of connecting wheel and chassis and installation bumper shock absorber, because the automobile lower swing arm need undertake the impact force of wheel and automobile body, when automobile chassis receives the impact force and is hit, cause the lower swing arm to damage easily, in order to prolong the life of swing arm down, need increase the crashworthiness of swing arm down, and current lower swing arm commonality is relatively poor, it is fixed to be not convenient for adjust the installation of preceding bush, lead to unable installation to target in place, influence the use of swing arm under the reality.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

The invention aims to provide an automobile swing arm with a reinforced buffer anti-collision structure, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: an automobile swing arm with a reinforced buffering anti-collision structure comprises a swing arm body, wherein one end of the swing arm body is fixedly connected with a ball pin assembly through a connecting piece, the other end of the swing arm body is provided with a rear bushing assembly, the rear bushing assembly comprises a rear bushing outer framework, a rubber body and a rear bushing inner framework, the inner part of the swing arm body is provided with the rear bushing outer framework, the rear bushing outer framework is connected with the rear bushing inner framework through the rubber body, one end of the swing arm body, far away from the ball pin assembly and the rear bushing assembly, is provided with a front bushing assembly, the inner part of the front bushing assembly is provided with a connecting rod, two ends of the connecting rod are connected with mounting sleeves, one end of the mounting sleeves, far away from the connecting rod, is fixedly connected with a mounting block, the surface of the mounting block is provided with a mounting hole, and the position of the swing, one side of the first connecting block, which is far away from the swing arm body, is fixedly connected with a first arc plate, the center of the inner wall of the first arc plate is symmetrically provided with a cavity, the inside of the cavity is provided with a second arc plate, the inner wall of the second arc plate is provided with a first limit line, the position, which is close to the first arc plate, of the connecting rod is provided with a second limit line, the first limit line is matched with the second limit line, a moving mechanism is arranged between the second arc plate and the first arc plate, one end, which is close to the connecting rod, of the mounting sleeve is connected with a limit mechanism, the middle part of the swing arm body is provided with a round hole, one end, which is close to the ball head pin assembly, of the swing arm body is provided with a first through hole with two through holes, one side, which is far away from the ball head pin assembly, of the surface of the swing arm body is provided with a, the swing arm comprises a swing arm body, a rear bushing assembly, a first anti-collision plate and a second anti-collision plate, wherein the number of the first anti-collision plate and the second anti-collision plate is four, the first anti-collision plate and the second anti-collision plate are matched with the swing arm body, a rubber spring is fixedly connected to one side, close to the swing arm body, of each anti-collision plate, the first movable rod is matched with the first through hole and the fourth through hole, the first movable rod is matched with the second through hole and the third through hole, a third spring is connected between the first anti-collision plate and the second anti-collision plate, the third spring is wound on the outer surface of the rubber spring, and a limiting ring is sleeved on the outer surface of one end, far away from the rubber spring, the surface of the first anti-collision plate is provided with a first jack matched with the first movable rod, the surface of the second anti-collision plate is provided with a second jack matched with the first movable rod, and the port of the first movable rod is located inside the first jack and the second jack.

Further, the moving mechanism comprises a moving rod, a third jack and a third arc-shaped plate, the second arc-shaped plate is far away from the moving rod fixedly connected with one side of the connecting rod, the cavity is close to the moving rod, the third jack is arranged at the position of the moving rod, the moving rod is far away from one end of the second arc-shaped plate penetrates through the third jack and is located outside the third jack, and the moving rod is located at one end of the third outer side of the jack and is connected with the third arc-shaped plate.

Furthermore, a first spring is connected between the cavity and the second arc-shaped plate, and the first spring is wound on the outer surface of the moving rod.

Further, stop gear includes connecting block two, spacing ring, jack four and gag lever post, the installation cover is kept away from the one end fixedly connected with connecting block two of installation piece, open on the surface of connecting block two has jack four, the inside of jack four is equipped with the gag lever post, the connecting rod is close to the gag lever post is opened there is the spacing ring, the one end of gag lever post is located in the spacing ring, the other end and the coupling mechanism of gag lever post are connected.

Furthermore, the connecting mechanism comprises a moving block, a sleeve and a third connecting block, the moving block is fixedly connected to one end, far away from the fourth jack, of the limiting rod, the moving block is located in the sleeve, the sleeve is fixed to the surface of the second connecting block, one end, far away from the limiting rod, of the moving block is fixedly connected with the third connecting block, and a reset mechanism is connected between the moving block and the sleeve.

Further, canceling release mechanical system includes movable block, activity opening, spring two, movable rod two, fixed block and fixed orifices, open there is the activity opening telescopic both sides, the movable block is close to activity opening part fixedly connected with movable block, the one end of movable block is run through activity opening just is located the sleeve outside, the fixed surface of movable block is connected with movable rod two, the sleeve is close to the one end fixedly connected with fixed block of connecting block three, open at the middle part of fixed block has the fixed orifices, the port of movable rod two runs through the fixed orifices, the fixed block with be connected with spring two between the movable block, spring two twine and locate the outer surface of movable rod.

Further, the inside of installation cover is provided with the internal thread, the both ends surface of connecting rod is provided with the external screw thread, the internal thread with external screw thread looks adaptation.

Furthermore, the surface of the swing arm body is provided with a reinforcing rib.

Further, the surface of the swing arm body is coated with an anticorrosive coating.

Furthermore, the inner side of the second connecting block is provided with an arc surface matched with the connecting rod.

Compared with the prior art, the invention has the following beneficial effects:

(1) this automobile swing arm not only has crashproof structure, strengthens the buffering crashproof ability of swing arm, can cushion the impact when the swing arm receives the striking, reduces the damaged possibility of swing arm to the life of extension swing arm, and the installation angle of bush before the convenient adjustment, thereby the installation that makes the front liner target in place, thereby improves the commonality of swing arm.

(2) The moving mechanism is convenient for carry out the operation that removes to arc two to make the connecting rod can adjust to arc one, the effect that the spring played promotion arc two can make arc two and connecting rod laminating when the lateral wall of connecting rod is located arc one.

(3) The mounting sleeve can be limited through the limiting mechanism, so that the mounting sleeve cannot be separated from a port of the connecting rod, the purpose of improving the connection stability of the mounting block and the connecting rod is achieved, the connecting mechanism is used for connecting the limiting rod, the limiting rod is convenient to move, and the reset mechanism is used for resetting the limiting rod after the limiting rod is moved.

(4) The cooperation of internal thread and external screw thread can make installation cover and connecting rod threaded connection, and the strengthening rib is used for improving the intensity of swing arm body, reduces the crooked possibility of swing arm body, and anticorrosive coating can improve the corrosion resistance of swing arm body, and the cambered surface makes things convenient for connecting block two to carry out the rotation operation around the connecting rod with the outer wall adaptation of connecting rod.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments 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 without creative efforts.

FIG. 1 is a schematic structural view according to the present invention;

FIG. 2 is a schematic view of a connection structure of a first anti-collision plate and a swing arm body according to the present invention;

FIG. 3 is a schematic view of the connection structure of the second anti-collision plate and the swing arm body according to the present invention;

FIG. 4 is a schematic view of the connection structure of the first and second anti-collision plates and the swing arm body according to the present invention;

FIG. 5 is a schematic view showing the structure of a rubber spring according to the present invention;

FIG. 6 is a schematic view of a first arcuate plate and a connecting rod according to the present invention;

FIG. 7 is a schematic structural view of a second arc plate according to the present invention;

FIG. 8 is a schematic view of a connecting rod according to the present invention;

FIG. 9 is a schematic view of a mounting block according to the present invention;

FIG. 10 is a schematic view of the construction of the mounting sleeve according to the present invention;

FIG. 11 is a schematic view of the construction of the coupling mechanism according to the present invention;

fig. 12 is a schematic view of the construction of a sleeve according to the present invention.

Reference numerals:

1. a swing arm body; 2. a connecting member; 3. a ball stud assembly; 4. a rear bushing exoskeleton; 5. a rubber body; 6. a rear liner inner skeleton; 7. a front bushing assembly; 8. a connecting rod; 9. installing a sleeve; 10. mounting blocks; 11. mounting holes; 12. a first connecting block; 13. a first arc plate; 14. a cavity; 15. a second arc-shaped plate; 16. a first limiting line; 17. a second limit line; 18. a circular hole; 19. a first through hole; 20. a second through hole; 21. a third through hole; 22. a fourth through hole; 23. a first anti-collision plate; 24. a second anti-collision plate; 25. a rubber spring; 26. a first movable rod; 27. a third spring; 28. a limiting ring; 29. a first jack; 30. a second jack; 31. a travel bar; 32. a third jack; 33. a third arc-shaped plate; 34. a first spring; 35. a second connecting block; 36. a limiting ring; 37. inserting holes; 38. a limiting rod; 39. a moving block; 40. a sleeve; 41. connecting blocks III; 42. a movable block; 43. a movable opening; 44. a second spring; 45. a second movable rod; 46. a fixed block; 47. a fixing hole; 48. an internal thread; 49. an external thread; 50. and (5) reinforcing ribs.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict. The invention is further described with reference to the following drawings and detailed description:

the first embodiment is as follows:

referring to fig. 1-12, an automobile swing arm with a reinforced buffer anti-collision structure according to an embodiment of the present invention includes a swing arm body 1, where a reinforcing rib 50 is disposed on a surface of the swing arm body 1, the reinforcing rib 50 is used to improve strength of the swing arm body 1 and reduce possibility of bending of the swing arm body 1, the surface of the swing arm body 1 is coated with an anticorrosive coating, the anticorrosive coating can improve corrosion resistance of the swing arm body 1, one end of the swing arm body 1 is fixedly connected with a ball pin assembly 3 through a connecting member 2, the other end of the swing arm body 1 is provided with a rear bushing assembly, the rear bushing assembly includes a rear bushing outer skeleton 4, a rubber body 5 and a rear bushing inner skeleton 6, a rear bushing outer skeleton 4 is disposed inside the swing arm body 1, and the rear bushing outer skeleton is connected with the rear bushing inner skeleton 6 through the rubber body 5;

a front bushing assembly 7 is arranged at one end, away from the ball stud assembly 3 and the rear bushing assembly, of the swing arm body 1, a connecting rod 8 is arranged inside the front bushing assembly 7, the inner diameter of the front bushing assembly 7 is matched with the outer diameter of the connecting rod 8, two ends of the connecting rod 8 are connected with mounting sleeves 9, internal threads 48 are arranged inside the mounting sleeves 9, external threads 49 are arranged on the outer surfaces of two ends of the connecting rod 8, the internal threads 48 are matched with the external threads 49, and the mounting sleeves 9 can be in threaded connection with the connecting rod 8 through the matching of the internal threads 48 and the external threads 49;

one end, far away from the connecting rod 8, of the mounting sleeve 9 is fixedly connected with a mounting block 10, a mounting hole 11 is formed in the surface of the mounting block 10, a first connecting block 12 is connected to the position, near the connecting rod 8, of the swing arm body 1, a first arc-shaped plate 13 is fixedly connected to one side, far away from the swing arm body 1, of the first connecting block 12, a cavity 14 is symmetrically formed in the center of the inner wall of the first arc-shaped plate 13, a second arc-shaped plate 15 is arranged inside the cavity 14, a first limiting line 16 is arranged on the inner wall of the second arc-shaped plate 15, a second limiting line 17 is arranged at the position, near the first arc-shaped plate 13, of the connecting rod 8, and the;

a moving mechanism is arranged between the second arc-shaped plate 15 and the first arc-shaped plate 13, one end of the mounting sleeve 9, which is close to the connecting rod 8, is connected with a limiting mechanism, a round hole 18 is formed in the middle of the swing arm body 1, one end of the swing arm body 1, which is close to the ball pin assembly 3, is provided with two first through holes 19, one side, which is far away from the ball pin assembly 3, of the surface of the swing arm body 1 is provided with two second through holes 20, one end, which is close to the rear bushing assembly, of the swing arm body 1 is provided with two third through holes 21, and one side, which is far away from the rear bushing assembly, of the surface of the swing arm body 1 and one side, which is far away from the rear bushing assembly, of the third through;

the swing arm comprises a swing arm body 1, and is characterized in that two sides of the swing arm body 1 are respectively provided with a first anti-collision plate 23 and a second anti-collision plate 24, the first anti-collision plate 23 and one side of the second anti-collision plate 24 close to the swing arm body 1 are fixedly connected with a rubber spring 25, the rubber spring 25 is close to one side of the swing arm body 1 and is fixedly connected with a first movable rod 26, the first movable rod 26 on the surface of the first anti-collision plate 23 is matched with the first through hole 19 and the fourth through hole 22, the first movable rod 26 on the surface of the second anti-collision plate 24 is matched with the second through hole 20 and the third through hole 21, a third spring 27 is connected between the first anti-collision plate 23 and the second anti-collision plate 24, the third spring 27 is wound on the outer surface of the rubber spring 25, a limit ring 28 is sleeved on the outer surface of one end of the first movable rod 26 far away from the rubber spring 25, the surface of the first anti-collision plate 23 is provided with a first insertion hole 29 matched with the first movable rod 26, the surface of the second anti-collision plate 24 is provided with a second insertion hole 30 matched with the first movable rod 26, and the port of the first movable rod 26 is positioned in the first insertion hole 29 and the second insertion hole 30.

Example two:

referring to fig. 6, the moving mechanism includes a moving rod 31, a third inserting hole 32 and a third arc plate 33, a moving rod 31 is fixedly connected to one side of the second arc-shaped plate 15 far away from the connecting rod 8, a third insertion hole 32 is formed in the cavity 14 close to the moving rod 31, one end of the moving rod 31 far away from the second arc-shaped plate 15 penetrates through the third insertion hole 32 and is positioned outside the third insertion hole 32, one end of the moving rod 31 positioned outside the third inserting hole 32 is connected with a third arc-shaped plate 33, a first spring 34 is connected between the cavity 14 and the second arc-shaped plate 15, the first spring 34 is wound on the outer surface of the moving rod 31, the moving mechanism is convenient for moving the second arc-shaped plate 15, thereby the connecting rod 8 can be adjusted to the first arc-shaped plate 13, the first spring 34 plays a role of pushing the second arc-shaped plate 15, when the side wall of the connecting rod 8 is positioned at the first arc-shaped plate 13, the second arc-shaped plate 15 can be attached to the connecting rod 8.

Example three:

referring to fig. 7-11, the limiting mechanism includes a second connecting block 35, a limiting ring 36, a fourth jack 37 and a limiting rod 38, the second connecting block 35 is fixedly connected to one end of the mounting sleeve 9 away from the mounting block 10, an arc surface matched with the connecting rod 8 is arranged on the inner side of the second connecting block 35, the arc surface is matched with the outer wall of the connecting rod 8, so that the second connecting block 35 can rotate around the connecting rod 8 conveniently, the fourth jack 37 is formed on the surface of the second connecting block 35, the limiting rod 38 is arranged inside the fourth jack 37, the limiting ring 36 is formed on the connecting rod 8 close to the limiting rod 38, one end of the limiting rod 38 is located in the limiting ring 36, and the other end of the limiting rod 38 is connected to the connecting mechanism;

it should be noted that the connecting mechanism includes a moving block 39, a sleeve 40 and a third connecting block 41, the moving block 39 is fixedly connected to one end of the limiting rod 38 far from the fourth insertion hole 37, the moving block 39 is located in the sleeve 40, the sleeve 40 is fixed to the surface of the second connecting block 35, one end of the moving block 39 far from the limiting rod 38 is fixedly connected to the third connecting block 41, a reset mechanism is connected between the moving block 39 and the sleeve 40, the limiting mechanism can limit the mounting sleeve 9, so that the mounting sleeve 9 cannot be separated from the port of the connecting rod 8, the purpose of improving the connection stability of the mounting block 10 and the connecting rod 8 is achieved, and the connecting mechanism is used for connecting the limiting rod 38 and is also convenient for moving the limiting rod 38.

Example four:

referring to fig. 11-12, the reset mechanism includes a movable block 42, a movable opening 43, a second spring 44, a second movable rod 45, a fixed block 46 and a fixed hole 47, two sides of the sleeve 40 are provided with movable openings 43, the movable block 39 is fixedly connected with a movable block 42 near the movable openings 43, one end of the movable block 42 penetrates the movable opening 43 and is located outside the sleeve 40, a second movable rod 45 is fixedly connected to the surface of the movable block 42, a fixed block 46 is fixedly connected to one end of the sleeve 40 close to the third connecting block 41, the middle part of the fixed block 46 is provided with a fixed hole 47, the port of the second movable rod 45 penetrates through the fixed hole 47, a second spring 44 is connected between the fixed block 46 and the movable block 42, the second spring 44 is wound on the outer surface of the second movable rod 45, and the reset mechanism is used for resetting the limiting rod 38 after the limiting rod 38 is moved.

For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.

In practical application, the first anti-collision plate 23 and the second anti-collision plate 24 are installed on the swing arm body 1, the first movable rod 26 on the first anti-collision plate 23 penetrates through the first through hole 19 and the fourth through hole 22, then the limiting ring 28 is sleeved on the outer surface of the first movable rod 26, the purpose of fixing the limiting ring 28 and the first movable rod 26 can be achieved in an adhesion mode, the third spring 27 and the rubber spring 25 extend to enable the limiting ring 28 to be in contact with the swing arm body 1, then the first movable rod 26 on the second anti-collision plate 24 penetrates through the second through hole 20 and the third through hole 21, at the moment, the first insertion hole 29 of the first anti-collision plate 23 and the second insertion hole 30 on the second anti-collision plate 24 can enable the first movable rod 26 to penetrate through, and the first anti-collision plate 23 and the second anti-collision plate 24 are connected in a staggered mode, therefore, the first anti-collision plate 23 and the second anti-collision plate 24 do not interfere with each other, in addition, the diameters of the first insertion hole 29 and the second insertion hole 30 are, when the swing arm body 1 is impacted, the first anti-collision plate 23, the second anti-collision plate 24, the third spring 27 and the rubber spring 25 are matched to protect the swing arm body 1, so that the damage to the swing arm body 1 is reduced;

after the first anti-collision plate 23 and the second anti-collision plate 24 are installed with the swing arm body 1, the connecting rod 8 can be inserted into the front bushing assembly 7, the third arc-shaped plate 33 is moved outwards, the first spring 34 is in a compressed state, the second arc-shaped plate 15 is located inside the cavity 14, then the connecting rod 8 is adjusted, the second limiting line 17 on the connecting rod 8 is located at the first arc-shaped plate 13, then the third arc-shaped plate 33 is loosened, and under the extension of the first spring 34, the first limiting line 16 on the second arc-shaped plate 15 is meshed with the second limiting line 17 on the connecting rod 8, so that the second arc-shaped plate 15 limits the connecting rod 8, and the connecting rod 8 cannot move left and right;

then the mounting sleeve 9 on the mounting block 10 is in threaded connection with two ends of the connecting rod 8, the limiting rod 38 is moved outwards through the third connecting block 41 at first, so that the port of the limiting rod 38 is located inside the fourth insertion hole 37, so that the second connecting block 35 does not affect the connection between the mounting sleeve 9 and the connecting rod 8, at this time, the second spring 44 is in a compressed state, the movable block 42 moves in the movable opening 43, when the mounting sleeve 9 cannot rotate, the limiting rod 38 is located at the limiting ring 36, the third connecting block 41 is released, the second spring 44 extends to push the movable block 42, the movable block 42 drives the movable block 39 to move, so that the port of the limiting rod 38 is located outside the fourth insertion hole 37 and located inside the limiting ring 36, at this time, the mounting block 10 cannot be separated from the port of the connecting rod 8 under the mutual blocking of the limiting ring 36, the limiting rod 38, the internal thread 48 and the external, at the moment, the installation operation can be carried out through the installation hole 11 on the installation block 10, and when the angle of the installation block 10 needs to be adjusted, the third arc-shaped plate 33 can be moved outwards, so that the second arc-shaped plate 15 is separated from the connecting rod 8, and the purpose of adjusting the angle of the installation block 10 is achieved by rotating the connecting rod 8;

this automobile swing arm not only has crashproof structure, strengthens the buffering crashproof ability of swing arm, can cushion the impact when the swing arm receives the striking, reduces the impaired possibility of swing arm to the life of extension swing arm, and the installation angle of bush before the convenient adjustment, thereby the installation that makes the front liner target in place, thereby improves the commonality of swing arm.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automobile swing arm with strengthen buffering anticollision structure which characterized in that, includes swing arm body (1), connecting piece (2) fixedly connected with bulb round pin assembly (3) are passed through to the one end of swing arm body (1).

2. The automobile swing arm with the reinforced buffering anti-collision structure is characterized in that a rear bushing assembly is arranged at the other end of a swing arm body (1), the rear bushing assembly comprises a rear bushing outer framework (4), a rubber body (5) and a rear bushing inner framework (6), the rear bushing outer framework (4) is arranged inside the swing arm body (1), the rear bushing outer framework (4) is connected with the rear bushing inner framework (6) through the rubber body (5), a front bushing assembly (7) is arranged at one end, away from the ball pin assembly (3) and the rear bushing assembly, of the swing arm body (1), a connecting rod (8) is arranged inside the front bushing assembly (7), mounting sleeves (9) are connected at two ends of the connecting rod (8), and a mounting block (10) is fixedly connected at one end, away from the connecting rod (8), of the mounting sleeves (9), the surface of the mounting block (10) is provided with a mounting hole (11), the swing arm body (1) is close to the connecting rod (8) and is connected with a first connecting block (12), one side of the first connecting block (12) far away from the swing arm body (1) is fixedly connected with a first arc plate (13), the inner wall of the first arc plate (13) is symmetrically provided with a cavity (14), the inside of the cavity (14) is provided with a second arc plate (15), the inner wall of the second arc plate (15) is provided with a first limiting line (16), the connecting rod (8) is close to the first arc plate (13) and is provided with a second limiting line (17), the first limiting line (16) is matched with the second limiting line (17), a moving mechanism is arranged between the second arc plate (15) and the first arc plate (13), one end of the mounting sleeve (9) close to the connecting rod (8) is connected with a limiting mechanism, the swing arm comprises a swing arm body (1), and is characterized in that a round hole (18) is formed in the middle of the swing arm body (1), two through holes I (19) are formed in one end, close to a ball head pin assembly (3), of the swing arm body (1), two through holes II (20) are formed in one side, away from the ball head pin assembly (3), of the through hole I (19), the surface of the swing arm body (1) is provided with two through holes III (21), one end, close to a rear bushing assembly, of the swing arm body (1) is provided with two through holes III (21), one side, away from the rear bushing assembly, of the through hole III (21) is provided with two through holes IV (22), an anti-collision plate I (23) and an anti-collision plate II (24) are arranged on two sides of the swing arm body (1), the anti-collision plate I (23) and the anti-collision plate II (24) are matched with the swing arm body (1), the swing arm comprises a swing arm body (1), an anti-collision plate I (23) and an anti-collision plate II (24), wherein one side of the swing arm body (1) is fixedly connected with a rubber spring (25), the rubber spring (25) is close to one side of the swing arm body (1) is fixedly connected with a movable rod I (26), the movable rod I (26) on the surface of the anti-collision plate I (23) is matched with a through hole I (19) and a through hole IV (22), the movable rod I (26) on the surface of the anti-collision plate II (24) is matched with a through hole II (20) and a through hole III (21), a spring III (27) is connected between the anti-collision plate I (23) and the anti-collision plate II (24), the spring III (27) is wound on the outer surface of the rubber spring (25), a limiting ring (28) is sleeved on the outer surface of one end, far away from the rubber spring (25), of the movable rod I (26), a first jack (29) matched with the first movable rod (26) is formed in the surface of the first anti-collision plate (23), a second jack (30) matched with the first movable rod (26) is formed in the surface of the second anti-collision plate (24), and the port of the first movable rod (26) is located inside the first jack (29) and the second jack (30); moving mechanism includes carriage release lever (31), three (32) of jack and three (33) of arc, keep away from in two (15) of arc one side fixedly connected with carriage release lever (31) of connecting rod (8), cavity (14) are inside to be close to carriage release lever (31) department has three (32) of jack, carriage release lever (31) are kept away from the one end of two (15) of arc is run through three (32) of jack and is located the outside of three (32) of jack, carriage release lever (31) are located the one end in the three (32) of jack outside is connected with three (33) of arc.

3. The swing arm with the reinforced buffer anti-collision structure is characterized in that a first spring (34) is connected between the cavity (14) and the second arc-shaped plate (15), and the first spring (34) is wound on the outer surface of the moving rod (31).

4. The automobile swing arm with the reinforced buffering anti-collision structure is characterized in that the limiting mechanism comprises a second connecting block (35), a limiting ring (36), a fourth jack (37) and a limiting rod (38), one end, far away from the mounting block (10), of the mounting sleeve (9) is fixedly connected with the second connecting block (35), the fourth jack (37) is formed in the surface of the second connecting block (35), the limiting rod (38) is arranged inside the fourth jack (37), the limiting ring (36) is formed in the connecting rod (8) close to the limiting rod (38), one end of the limiting rod (38) is located in the limiting ring (36), and the other end of the limiting rod (38) is connected with the connecting mechanism.

5. The swing arm with the reinforced buffering anti-collision structure is characterized in that the connecting mechanism comprises a moving block (39), a sleeve (40) and a third connecting block (41), the moving block (39) is fixedly connected to one end, away from the fourth jack (37), of the limiting rod (38), the moving block (39) is located in the sleeve (40), the sleeve (40) is fixed to the surface of the second connecting block (35), one end, away from the limiting rod (38), of the moving block (39) is fixedly connected with the third connecting block (41), and a resetting mechanism is connected between the moving block (39) and the sleeve (40).

6. The swing arm with the reinforced buffer anti-collision structure is characterized in that the resetting mechanism comprises a movable block (42), a movable opening (43), a second spring (44), a second movable rod (45), a fixed block (46) and a fixed hole (47), the movable opening (43) is formed in two sides of the sleeve (40), the movable block (39) is fixedly connected with the movable block (42) at a position close to the movable opening (43), one end of the movable block (42) penetrates through the movable opening (43) and is positioned on the outer side of the sleeve (40), the second movable rod (45) is fixedly connected to the surface of the movable block (42), the fixed block (46) is fixedly connected to one end, close to the third connecting block (41), of the sleeve (40), the middle of the fixed block (46) is provided with the fixed hole (47), and a port of the second movable rod (45) penetrates through the fixed hole (47), a second spring (44) is connected between the fixed block (46) and the movable block (42), and the second spring (44) is wound on the outer surface of the second movable rod (45).

7. The swing arm with the reinforced buffer anti-collision structure is characterized in that an internal thread (48) is arranged inside the mounting sleeve (9), an external thread (49) is arranged on the outer surfaces of two ends of the connecting rod (8), and the internal thread (48) is matched with the external thread (49).

8. The swing arm with the reinforced buffer anti-collision structure for the automobile according to claim 7 is characterized in that a surface of the swing arm body (1) is provided with a reinforcing rib (50).

9. The swing arm of an automobile with a reinforced buffer anti-collision structure according to claim 8 is characterized in that the surface of the swing arm body (1) is coated with an anti-corrosion coating.

10. The swing arm with the reinforced buffer anti-collision structure as claimed in claim 9, wherein the inner side of the second connecting block (35) is provided with an arc surface matched with the connecting rod (8).