CN216423994U

CN216423994U - Rear lower supporting arm assembly

Info

Publication number: CN216423994U
Application number: CN202122704492.0U
Authority: CN
Inventors: 周光友; 曹华彬; 杨易武
Original assignee: Chengdu Heyi Youpin Auto Parts Co ltd
Current assignee: Chengdu Heyi Youpin Auto Parts Co ltd
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-05-03
Anticipated expiration: 2031-11-03

Abstract

The utility model discloses a rear lower bracket assembly, which comprises a rear lower bracket main body, one end of which is fixed with a first bush, the other end of the rear lower bracket main body is fixed with a connecting cylinder, the interior of the connecting cylinder is adjustably connected with a first connecting pipe, one end of the first connecting pipe far away from the connecting cylinder is adjustably connected with a connecting column, the connecting column is connected with a second locking component, the first connecting pipe is connected with a first locking component, one end of the first connecting pipe far away from the connecting cylinder is provided with a baffle part, the first locking component and the second locking component are respectively arranged at two sides of the baffle part, one end of the connecting column far away from the first connecting pipe is fixed with a mounting sleeve, a second bush is fixedly inserted in the mounting sleeve, so that the length of the rear lower bracket assembly can be adjusted at will, therefore, the rear lower bracket can always adapt to the deformation problem of the frame after the automobile is used for too long.

Description

Rear lower supporting arm assembly

Technical Field

The utility model relates to a back underarm technical field, in particular to back underarm assembly.

Background

The rear lower supporting arm is an important component of a chassis suspension system, is used for connecting a rear wheel and a rear frame and transmitting force between the rear wheel and the rear frame, plays a role in buffering in the running process of a vehicle, is used for reducing the jumping amplitude of the wheel, and improves the running safety and comfort of the vehicle. However, the existing rear lower bracket arm assembly is generally fixed and cannot adjust the length of the rear lower bracket arm assembly, so that the rear lower bracket arm assembly is difficult to adapt to the deformation problem of a frame after the automobile is used for a long time, and therefore, a rear lower bracket arm assembly is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a back lower trailing arm assembly to the back lower trailing arm assembly who proposes generally all is fixed and can not carry out the problem adjusted its length in solving above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a lower trailing arm assembly in back, trailing arm main part under the back that is fixed with first bush including one end, the other end of trailing arm main part is fixed with the connecting cylinder down in the back, the inside adjustable connection of connecting cylinder has first connecting pipe, the one end adjustable connection that the connecting cylinder was kept away from to first connecting pipe has the spliced pole, be connected with second locking Assembly on the spliced pole, be connected with first locking Assembly on the first connecting pipe, the one end that the connecting cylinder was kept away from to first connecting pipe is provided with fender portion, first locking Assembly and second locking Assembly are located the both sides of fender portion respectively, the one end that first connecting pipe was kept away from to the spliced pole is fixed with the installation cover, fixed the grafting has the second bush in the installation cover.

Furthermore, the connecting cylinder is made of metal.

Further, the first locking component comprises a first nut in threaded connection with the first connecting pipe, the second locking component comprises a second nut in threaded connection with the connecting column, and the thread directions of the first nut and the second nut are opposite.

Furthermore, the first locking assembly further comprises a large washer corresponding to the first nut, and the second locking assembly further comprises a small washer corresponding to the second nut. The setting of big packing ring and little packing ring can increase the fastness that the back lower trailing arm assembly fastened, can also improve the leakproofness simultaneously, effectively avoids the dust to get into the inside of first connecting pipe and connecting cylinder, avoids impurity influence the precision of connecting.

Furthermore, the large gasket and the small gasket are made of rubber.

Furthermore, the middle part of the bracket arm main body is provided with a connecting part, the connecting part is sunken towards the inner side of the bracket arm main body, and the sunken direction of the connecting part is parallel to the axial direction of the second bushing.

Further, the axes of the first and second bushings are perpendicular to each other to accommodate external connections.

The utility model discloses a technological effect and advantage:

1. through connecting cylinder, first connecting pipe, spliced pole, first nut, second nut and the connecting cylinder that sets up for the length that carries on of back lower trailing arm assembly can be at will length adjust, thereby makes back lower trailing arm always can adapt to the car live time overlength back, the deformation problem of frame.

Drawings

Fig. 1 is a schematic sectional view of the present invention.

Fig. 2 is a bottom view of fig. 1.

In the figure: 1. a rear lower bracket main body; 2. a first connecting pipe; 3. connecting columns; 4. installing a sleeve; 5. a bushing; 6. a large washer; 7. a small washer; 8. a first nut; 9. a second nut; 10. a connecting cylinder; 11. a connecting portion.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a for realize above-mentioned purpose as shown in figure 1, figure 2, the utility model provides a following technical scheme: the utility model provides a lower trailing arm assembly in back, trailing arm main part 1 under the back that is fixed with first bush 5 including one end, the other end of trailing arm main part 1 is fixed with connecting cylinder 10 down in the back, the inside adjustable connection of connecting cylinder 10 has first connecting pipe 2, the adjustable connection of one end that connecting cylinder 10 was kept away from to first connecting pipe 2 has spliced pole 3, be connected with second locking component on the spliced pole 3, be connected with first locking component on the first connecting pipe 2, the one end that connecting cylinder 10 was kept away from to first connecting pipe 2 is provided with fender portion 21, first locking component and second locking component are located the both sides of fender portion 21 respectively, the one end that first connecting pipe 2 was kept away from to spliced pole 3 is fixed with installation cover 4, the internal fixation of installation cover is pegged graft and is had second bush 51.

Connecting cylinder 10 is installed respectively to the inside of trailing arm main part 1 down in the back, and the material of connecting cylinder 10 is the metal, and the inside of connecting cylinder 10 is provided with first connecting pipe 2, and is provided with first screw thread on the inner wall of connecting cylinder 10 and on the lateral wall of first connecting pipe 2 respectively, and first connecting pipe 2 is connected with connecting cylinder 10 through first screw thread, through to one side rotate and the first connecting pipe 2 of threaded connection between the connecting cylinder 10, is favorable to adjusting the length of trailing arm assembly down in the back.

The connecting column 3 is arranged at one end, far away from the connecting cylinder 10, of the first connecting pipe 2, second threads are arranged on the inner wall of the first connecting pipe 2 and the side wall of the connecting column 3 respectively, the connecting column 3 is connected with the first connecting pipe 2 through the second threads, and the connecting column 3 in threaded connection with the inner side of the first connecting pipe 2 is rotated, so that the length of the rear lower supporting arm assembly can be lengthened, and the rear lower supporting arm assembly can adapt to deformation of a frame after the automobile is used for a long time through adjustment.

The welding of the one end of spliced pole 3 keeping away from first connecting pipe 2 has installation cover 4 to increase the fastness of being connected between spliced pole 3 and the installation cover 4. The second bush 51 is inserted into the mounting sleeve 4 in an interference manner, and the first bush 5 and the second bush 51 have the same structure and are both rubber sleeves. The axes of the first bush 5 and the second bush 51 are perpendicular to each other, so that the rear lower bracket arm assembly and the frame can be conveniently fixed.

The middle part of the rear lower corbel body 1 is provided with a connecting part 11, the connecting part 11 is recessed towards the inner side of the rear lower corbel body 1, and the recessed direction of the connecting part 11 is parallel to the axial direction of the second bush 51. The mounting hole that sets up on connecting portion 11 is used for being connected with the frame, and sunken connecting portion 11 that sets up can make the frame end insert the connection, improves joint strength, improves the area of contact of junction simultaneously, is favorable to improving stability and impact strength.

In this embodiment, the first locking assembly comprises a first nut 8 screwed onto the first connecting pipe 2, and the second locking assembly comprises a second nut 9 screwed onto the connecting column 3, the first nut 8 and the second nut 9 being opposite in thread direction. The first locking assembly further comprises a large washer 6 corresponding to the first nut 8, and the second locking assembly further comprises a small washer 7 corresponding to the second nut 9. The large gasket 6 and the small gasket 7 are made of rubber. The first locking component and the second locking component can fix the position of the first connecting pipe 2 after the length is adjusted, so that the slipping is prevented; through big packing ring 6 and little packing ring 7, can increase the fastening, be favorable to increasing the leakproofness of trailing arm assembly down simultaneously, avoid the dust to lead to the fact the influence to the use of trailing arm assembly down.

In this embodiment, be provided with first nut 8 on the lateral wall of first connecting pipe 2, be provided with second nut 9 on the lateral wall of spliced pole 3, first nut 8's shape is the hexagon, through first nut 8 and second nut 9, is favorable to increasing the fixed efficiency between first connecting pipe 2, spliced pole and the connecting cylinder.

This practical theory of operation: the utility model relates to a lower trailing arm assembly in back, during the use, earlier through twisting the second nut 9 that sets up on the lateral wall of the first nut 8 that sets up on the lateral wall of first connecting pipe 2 and spliced pole 3, make it remove to the direction of bush 5, then rotate first connecting pipe 2 and spliced pole 3 through threaded connection again, make it respectively follow the inside outside removal of connecting cylinder 10 with first connecting pipe 2, thereby make the length of trailing arm assembly under the back adjust, length adjustment is good the back, fasten through screwing up first nut 8 and second nut 9, and then make its deformation problem that can adapt to car live time overlength back frame.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a trailing arm assembly down, includes that one end is fixed with trailing arm main part (1) of first bush (5), its characterized in that: the other end of back lower bracket main part (1) is fixed with connecting cylinder (10), the inside adjustable connection of connecting cylinder (10) has first connecting pipe (2), keep away from first connecting pipe (2) the one end adjustable connection of connecting cylinder (10) has spliced pole (3), be connected with second locking Assembly on spliced pole (3), be connected with first locking Assembly on first connecting pipe (2), keep away from first connecting pipe (2) the one end of connecting cylinder (10) is provided with fender portion (21), first locking Assembly with second locking Assembly is located respectively the both sides of fender portion (21), keep away from spliced pole (3) the one end of first connecting pipe (2) is fixed with installation cover (4), the internal fixation of installation cover (4) is pegged graft and is had second bush (51).

2. A rear lower boom assembly according to claim 1, wherein: the connecting cylinder (10) is made of metal.

3. A rear lower boom assembly according to claim 1, wherein: the first locking component comprises a first nut (8) in threaded connection with the first connecting pipe (2), the second locking component comprises a second nut (9) in threaded connection with the connecting column (3), and the thread turning direction of the first nut (8) is opposite to that of the second nut (9).

4. A rear lower boom assembly according to claim 3, wherein: the first locking assembly further comprises a large washer (6) corresponding to the first nut (8), and the second locking assembly further comprises a small washer (7) corresponding to the second nut (9).

5. The rear lower boom assembly of claim 4, wherein: the large gasket (6) and the small gasket (7) are made of rubber.

6. A rear lower boom assembly according to claim 1, wherein: the middle part of the bracket arm main body (1) is provided with a connecting part (11), the connecting part (11) is sunken towards the inner side of the bracket arm main body (1), and the sunken direction of the connecting part (11) is parallel to the axial direction of the second bushing (51).

7. A rear lower boom assembly according to claim 1, wherein: the axes of the first bush (5) and the second bush (51) are perpendicular to each other.