CN217672031U

CN217672031U - Automobile dragging arm

Info

Publication number: CN217672031U
Application number: CN202123280944.3U
Authority: CN
Inventors: 杨林; 李孟; 李平惠; 李爽立; 苏凯飞
Original assignee: Nanyang Linjite Metal Products Co ltd
Current assignee: Nanyang Linjite Metal Products Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-10-28
Anticipated expiration: 2031-12-24

Abstract

The utility model relates to the technical field of automobiles, in particular to an automobile dragging arm, which comprises a dragging arm main body, wherein one end of the dragging arm main body is fixedly connected with a connecting frame, the top surface of the connecting frame is fixedly connected with a shock absorber, the other end of the dragging arm main body is fixedly connected with an installing head, an elastic limiting supporting structure is arranged inside the dragging arm main body, the elastic limiting supporting structure comprises a built-in cavity arranged inside the dragging arm main body, and the surface of the dragging arm main body is provided with a sealing cover for sealing the built-in cavity through bolts; the utility model discloses an elasticity spacing bearing structure establishes for behind the condition that crackle appears at drag arm main part top, the double-end hook on the support mainboard can contact with spacing hook, thereby for drag the arm main part and provide certain holding power and elasticity when buckling deformation, prevent to appear that the crackle pulls the arm main part and receive jolting and further fracture and lead to the condition of thoroughly breaking off in the driving process, reduced the potential safety hazard.

Description

Automobile dragging arm

Technical Field

The utility model relates to the field of automotive technology, specifically be an automobile pulls arm.

Background

The automobile dragging arm is a suspension specially designed for a rear wheel in an automobile semi-independent suspension structure, and the dragging arm type suspension integral structure consists of a main shaft directly combined with an automobile body part and a suspension system combined with the main shaft.

The existing automobile dragging arm is easy to break or crack after long-time work in the working process due to bumping and metal fatigue of the automobile, and easily influences the operation of a driver when the problems occur in the driving process, so that certain potential safety hazards are generated.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a car pulls arm possesses the less advantage of potential safety hazard, has solved current car and has pulled the arm and influence driver's driving operation easily after the automobile driving in-process fracture, has the problem of certain potential safety hazard.

The utility model provides an automobile dragging arm, is including dragging the arm main part, the one end fixedly connected with link that drags the arm main part, the top surface fixedly connected with shock absorber of link, the other end fixedly connected with installation head that drags the arm main part, the inside of dragging the arm main part is equipped with the spacing bearing structure of elasticity.

The elastic limiting supporting structure comprises a built-in cavity formed in the dragging arm body, a sealing cover used for sealing the built-in cavity is mounted on the surface of the dragging arm body through bolts, a plurality of limiting hooks are fixedly connected to the top of the inner cavity of the built-in cavity, and a supporting main board is fixedly connected to the position, located in the built-in cavity, of the connecting frame.

The surface of the supporting main board is fixedly connected with a double-end hook matched with the limiting hook, and the double-end hook is not in contact with the limiting hook.

Through the design of the technical scheme, after the condition that cracks appear at the top of the dragging arm main body, the double-end hook on the supporting main board can be in contact with the limiting hook, so that certain supporting force and elastic force are provided for the dragging arm main body when the dragging arm main body is bent and deformed, the situation that the dragging arm main body with cracks in the driving process is bumped and further cracks to cause thorough disconnection is prevented, and potential safety hazards are reduced.

As a further improvement, the one end of the connecting frame is equipped with the hook-shaped arch for supporting the mainboard, and the arch of this place extends to the inside of installing the head, the recess of the protruding looks adaptation that establishes with the support mainboard surface is offered to the inside of installing the head, and this recess not with support mainboard surface contact.

Through the design of the technical scheme, the double-end hook and the limiting hook which are not in mutual contact can be matched to ensure that the supporting main board can not be stressed under the condition that the main body of the dragging arm is not fractured, and the condition that the supporting main board is fractured together and loses the supporting function after the main body of the dragging arm is fractured is prevented.

As a further improvement, the two hook-shaped structures of double-end hook are respectively towards installation head and link, and the two department of double-end hook all is equipped with the spacing hook not connected with it, two equal fixedly connected with elastic metal plate between two spacing hooks that double-end hook opposite side was established, and the one side of keeping away from mutually near two spacing hooks that support the mainboard both ends all through elastic metal plate and support mainboard fixed connection, form a cavity between top and double-end hook, elastic metal plate, the spacing hook that support the mainboard, and the inside swing joint of this place cavity has elastic metal to enclose.

Through the design of the technical scheme, the connection between the limiting hooks can be reinforced, and meanwhile, certain elastic support can be provided for the unbroken dragging arm main body, so that the connection strength is improved.

As the utility model discloses a further improvement, the bottom fixedly connected with support frame of support mainboard, and the support frame keeps away from the inside fixed connection who supports the one end of mainboard and built-in chamber, the support frame is whole to be two mirror image distribution chevron structure, and the support frame is carbon spring steel.

Through the design of the technical scheme, the bottom of the supporting main board can be supported, certain elastic force and supporting force are provided for the supporting main board, the stable position of the supporting main board in the built-in cavity is ensured, and the follow-up support for the main body of the dragging arm is ensured to be firm enough.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses an elasticity spacing bearing structure establishes for behind the condition that crackle appears at drag arm main part top, the double-end hook on the support mainboard can contact with spacing hook, thereby for drag the arm main part and provide certain holding power and elasticity when buckling deformation, prevent to appear that the crackle pulls the arm main part and receive jolting and further fracture and lead to the condition of thoroughly breaking off in the driving process, reduced the potential safety hazard.

2. The utility model discloses an elastic metal plate establishes, can consolidate the connection between the spacing hook, also can provide certain elasticity to the not cracked arm main part that pulls simultaneously and support, improves its joint strength, through the support mainboard and the installation head that do not contact, can cooperate not the double-end hook of mutual contact with spacing hook to guarantee to support the mainboard and can not receive the force under the condition of pulling arm main part and not cracking, prevent to appear supporting the mainboard and together breaking and losing the supporting role's the condition after pulling arm main part fracture.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic side sectional view of the present invention;

FIG. 2 is a schematic view of the top-down structure of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 1.

In the figure: 1. a trailing arm body; 2. a connecting frame; 3. a shock absorber; 4. a mounting head; 5. an elastic limit support structure; 51. a cavity is arranged inside; 52. a closure cap; 53. a limiting hook; 54. supporting the main board; 55. a double-headed hook; 56. an elastic metal plate; 57. an elastic metal ring; 58. a support frame.

Detailed Description

The following description discloses several embodiments of the present invention with reference to the drawings:

example 1: referring to fig. 1-3, an automobile towing arm includes a towing arm body 1, a connecting frame 2 fixedly connected to one end of the towing arm body 1, a shock absorber 3 fixedly connected to a top surface of the connecting frame 2, an installation head 4 fixedly connected to the other end of the towing arm body 1, and an elastic limit support structure 5 disposed inside the towing arm body 1.

The elastic limiting and supporting structure 5 comprises a built-in cavity 51 formed in the dragging arm body 1, a sealing cover 52 used for sealing the built-in cavity 51 is installed on the surface of the dragging arm body 1 through bolts, a plurality of limiting hooks 53 are fixedly connected to the top of an inner cavity of the built-in cavity 51, and a supporting main board 54 is fixedly connected to the position, inside the built-in cavity 51, of the connecting frame 2.

The difference between example 2 and example 1 is: the surface of the supporting main plate 54 is fixedly connected with a double-end hook 55 matched with the limit hook 53, and the double-end hook 55 is not contacted with the limit hook 53.

Through the elastic limiting and supporting structure 5, after cracks appear at the top of the towing arm main body 1, the double-end hook 55 on the supporting main board 54 can be in contact with the limiting hook 53, so that certain supporting force and elastic force are provided for the towing arm main body 1 during bending deformation, the situation that the towing arm main body 1 with cracks in the driving process is bumped and further cracks to cause complete disconnection is prevented, and potential safety hazards are reduced.

The difference between example 3 and example 2 is: the supporting motherboard 54 is provided with a hook-shaped protrusion at an end away from the connecting frame 2, and the protrusion extends into the mounting head 4, the mounting head 4 is provided with a groove matching with the protrusion on the surface of the supporting motherboard 54, and the groove is not in contact with the surface of the supporting motherboard 54.

Through the support mainboard 54 and the mounting head 4 which are not in contact with each other, the double-end hook 55 and the limit hook 53 which are not in contact with each other can be matched to ensure that the support mainboard 54 is not stressed under the condition that the towing arm body 1 is not broken, and the situation that the support mainboard 54 is broken together and loses the support function after the towing arm body 1 is broken is prevented.

The difference between example 4 and example 3 is: the hook-shaped structure of both ends of double-end hook 55 is towards installation head 4 and link 2 respectively, and the both ends department of double-end hook 55 all is equipped with the spacing hook 53 not connected with it, all fixedly connected with elastic metal plate 56 between two spacing hooks 53 that two double-end hooks 55 opposite sides were established, and the one side that two spacing hooks 53 that are close to the support mainboard 54 both ends keep away from mutually all through elastic metal plate 56 and support mainboard 54 fixed connection, form a cavity between the top of support mainboard 54 and double-end hook 55, elastic metal plate 56, the spacing hook 53, and the inside swing joint of this place cavity has elastic metal circle 57.

The elastic metal plate 56 can reinforce the connection between the limiting hooks 53, and can provide certain elastic support for the unbroken towing arm main body 1, so that the connection strength is improved.

The difference between example 5 and example 4 is: the bottom of the supporting main plate 54 is fixedly connected with a supporting frame 58, one end, far away from the supporting main plate 54, of the supporting frame 58 is fixedly connected with the inside of the built-in cavity 51, the supporting frame 58 is integrally in a herringbone structure with two mirror images distributed, and the supporting frame 58 is made of carbon spring steel.

The support frame 58 is arranged to support the bottom of the support main plate 54, so as to provide a certain elastic force and a certain support force for the support main plate 54, thereby ensuring a stable position of the support main plate 54 in the built-in cavity 51 and ensuring a sufficiently firm support for the trailing arm main body 1.

When using the utility model discloses the time:

if the towing arm body 1 is cracked and begins to bend in the vehicle running process, the limiting hook 53 in the fracture part of the towing arm body 1 is in contact with the double-end hook 55, the supporting main board 54 is in contact with the inside of the mounting head 4, the elastic metal plate 56 and the elastic metal ring 57 are matched to support the towing arm body 1, meanwhile, certain elastic force is provided for the towing arm body 1, the integral strength of the towing arm body 1 after cracking or fracture is guaranteed, and potential safety hazards are reduced.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An automobile trailing arm, includes trailing arm main part (1), its characterized in that: one end of the towing arm main body (1) is fixedly connected with a connecting frame (2), the top surface of the connecting frame (2) is fixedly connected with a shock absorber (3), the other end of the towing arm main body (1) is fixedly connected with an installing head (4), and an elastic limiting supporting structure (5) is arranged inside the towing arm main body (1); the elastic limiting and supporting structure (5) comprises a built-in cavity (51) formed in a dragging arm body (1), a sealing cover (52) used for sealing the built-in cavity (51) is installed on the surface of the dragging arm body (1) through bolts, a plurality of limiting hooks (53) are fixedly connected to the top of an inner cavity of the built-in cavity (51), and a connecting frame (2) is fixedly connected to the position inside the built-in cavity (51) and supports a main board (54).

2. The automotive trailing arm of claim 1, wherein: the surface of the supporting main board (54) is fixedly connected with a double-end hook (55) matched with the limiting hook (53), and the double-end hook (55) is not in contact with the limiting hook (53).

3. The automotive trailing arm of claim 1, wherein: one end of the supporting main board (54) far away from the connecting frame (2) is provided with a hook-shaped bulge, the bulge extends into the mounting head (4), a groove matched with the bulge arranged on the surface of the supporting main board (54) is formed in the mounting head (4), and the groove is not in surface contact with the supporting main board (54).

4. The automotive trailing arm of claim 2, wherein: the two-end hook structure of the double-end hook (55) faces the mounting head (4) and the connecting frame (2) respectively, and two ends of the double-end hook (55) are provided with limiting hooks (53) which are not connected with the double-end hook.

5. The automotive trailing arm of claim 4, wherein: elastic metal plates (56) are fixedly connected between the two limiting hooks (53) arranged on the opposite sides of the two double-head hooks (55), and one sides, far away from the two limiting hooks (53) close to the two ends of the supporting main plate (54), are fixedly connected with the supporting main plate (54) through the elastic metal plates (56).

6. The automotive trailing arm of claim 4, wherein: a cavity is formed among the top of the supporting main board (54), the double-end hook (55), the elastic metal plate (56) and the limiting hook (53), and an elastic metal ring (57) is movably connected inside the cavity.

7. The automotive trailing arm of claim 5, wherein: the bottom of the supporting main board (54) is fixedly connected with a supporting frame (58), and one end, far away from the supporting main board (54), of the supporting frame (58) is fixedly connected with the inside of the built-in cavity (51).

8. The automotive trailing arm of claim 7, wherein: the support frame (58) is integrally formed by two mirror image distribution herringbone structures, and the support frame (58) is made of carbon spring steel.