Novel automobile control arm

Abstract

The utility model relates to a novel automobile control arm which comprises a control arm body, a front lining assembly, a rear lining assembly and a spherical hinge assembly, the control arm body comprises a connecting end used for installing the spherical hinge assembly, and the connecting end comprises an upper sheet body and a lower sheet body which are fixedly connected. An inserting plate used for being inserted into an installation space between the upper piece body and the lower piece body in an interference mode is integrally formed on one side of the spherical hinge assembly, positioning convex ribs are integrally formed on the upper side and the lower side of the inserting plate, the ends, away from the spherical hinge assembly, of the positioning convex ribs are in a gradually-changing expansion shape, and positioning openings used for allowing the positioning convex ribs to be inserted in a matched mode are formed in the upper piece body and the lower piece body. Fixing holes are formed in the positions, where the positioning protruding ribs are located, of the inserting plate in a penetrating mode, first through holes corresponding to the fixing holes are formed in the upper sheet body and the lower sheet body, studs penetrating through the fixing holes and the first through holes are arranged on the inserting plate, first nuts are connected to the studs in a threaded mode, the structure is quite firm and reliable, and the spherical hinge assembly cannot shake easily.

Description

Technical Field

[0001] The utility model relates to a novel automobile control arm. Background Art

[0002] The automobile control arm is an important safety component in the automobile chassis system, which is used to connect the braking and suspension systems, transfer loads, and ensure wheel alignment parameters.

[0003] Usually, an automobile control arm includes a control arm body, a front bushing assembly, a rear bushing assembly and a ball joint assembly, wherein the front bushing assembly and the rear bushing assembly on most automobile control arms are welded and fixed to the control arm body, while the ball joint assembly is riveted to the control arm body in some automobile control arms, and fixed to the control arm body with bolts in some other automobile control arms. The riveted ball joint assembly is firm but not easy to disassemble when it needs to be replaced, and the ball joint assembly that is simply fixed with bolts is prone to loosening due to the long-term vibration environment of the vehicle, thereby causing the ball joint assembly to shake. In view of this technical problem, the present application makes an improvement and proposes an automobile control arm that can be disassembled and assembled and has a firmly installed ball joint assembly. Utility Model Content

[0004] The utility model provides a novel automobile control arm, the ball joint assembly of which can be disassembled and assembled and is firmly installed, thus solving the above-mentioned problems existing in the use process of the prior art.

[0005] The technical solution of the utility model is achieved as follows: a new type of automobile control arm, comprising a control arm body, a front bushing assembly, a rear bushing assembly and a ball joint assembly, the front bushing assembly and the rear bushing assembly are both fixedly connected to the control arm body, the control arm body includes a connecting end for installing the ball joint assembly, the connecting end includes an upper sheet body and a lower sheet body fixedly connected, an installation space is provided between the upper sheet body and the lower sheet body, one side of the ball joint assembly is integrally formed with a plug plate for interference insertion into the installation space, the upper and lower sides of the plug plate are integrally formed with positioning ribs, the end of the positioning rib away from the ball joint assembly is gradually expanded, the upper sheet body and the lower sheet body are both provided with positioning ports for the positioning rib to cooperate with the insertion, the plug plate is penetrated with a fixing hole at the position of the positioning rib, the upper sheet body and the lower sheet body are both provided with a first through hole corresponding to the fixing hole, the plug plate is provided with a stud passing through the fixing hole and the first through hole, and the stud is threadedly connected with a first nut.

[0006] Preferably, the stud includes a head located on the lower sheet and a column passing through the fixing hole and the first through hole to reach the top of the upper sheet, the column is fixedly connected to an anti-rotation strip on the side wall at one end close to the head, and the lower sheet and the plug plate are correspondingly provided with notches for inserting the anti-rotation strip.

[0007] Preferably, an anti-loosening groove is provided on one end of the column that penetrates through the upper sheet body, a wedge is inserted into the anti-loosening groove, and the wedge is pressed tightly against the inner surface of the first nut.

[0008] Preferably, the positioning rib is interference fit in the positioning opening.

[0009] Preferably, the insert plate is provided with fastening holes on both sides of the positioning rib and on the side away from the ball joint assembly, the upper plate and the lower plate are provided with second through holes corresponding to the fastening holes, and the insert plate is provided with detachable fasteners passing through the fastening holes and the second through holes.

[0010] Preferably, the detachable fastener includes a screw rod passing through the lower sheet, the insert plate and the upper sheet through the fastening hole and the second through hole in sequence; a second nut threadedly connected to the screw rod; and an anti-loosening gasket compressed between the second nut and the upper sheet.

[0011] Preferably, a third nut is threadedly connected to the screw rod, and the third nut is pressed onto the second nut.

[0012] In summary, the beneficial effects of the present invention are:

[0013] 1. The ball joint assembly of the utility model is inserted into the installation space between the upper sheet and the lower sheet through interference fit of the plug plate, and the positioning ribs on the upper and lower sides of the plug plate are inserted into the positioning openings of the upper sheet and the lower sheet, and the end of the positioning rib away from the ball joint assembly is gradually expanded, and finally fixed by the threaded cooperation of the stud and the first nut. The structure is very firm and reliable. Even if the stud and the first nut are loose, the ball joint assembly will not shake easily, which improves the structural strength of the ball joint assembly fixed to the control arm body. When disassembling, the first nut is removed, the stud is pulled out, and the plug plate can be pulled out.

[0014] 2. By providing an anti-rotation strip on the column and inserting it into the notch on the lower plate and the plug plate, the stud can be prevented from rotating relative to the control arm body and the plug plate. In addition, by providing an anti-loosening groove on the column, the wedge is inserted into the anti-loosening groove and pressed against the inner surface of the first nut, which can effectively prevent the first nut from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure in which the ball joint assembly explodes from the control arm body in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the control arm body in the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the utility model when the stud and the screw are removed and observed from the bottom;

[0020] Figure 5 It is a schematic diagram of the structure of the stud, the first nut and the wedge exploded in the utility model.

[0021] In the figure: 1. control arm body; 11. connecting end; 111. upper plate; 112. lower plate; 113. installation space; 114. positioning port; 115. first through hole; 116. second through hole; 2. front bushing assembly; 3. rear bushing assembly; 4. ball joint assembly; 41. plug plate; 411. positioning rib; 412. fixing hole; 413. fastening hole; 5. stud; 51. head; 52. column; 521. anti-rotation strip; 522. anti-loosening groove; 53. first nut; 54. wedge; 6. notch; 71. screw; 72. second nut; 73. anti-loosening gasket; 74. third nut. DETAILED DESCRIPTION

[0022] The following will be combined with the attached embodiment of the utility model Figure 1-5 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example:

[0024] like Figures 1 to 5As shown, the utility model discloses a novel automobile control arm, including a control arm body 1, a front bushing assembly 2, a rear bushing assembly 3 and a ball joint assembly 4, wherein the front bushing assembly 2 and the rear bushing assembly 3 are both fixedly connected to the control arm body 1, and the control arm body 1 includes a connecting end 11 for installing the ball joint assembly 4, and the connecting end 11 includes an upper sheet 111 and a lower sheet 112 fixedly connected, and an installation space 113 is provided between the upper sheet 111 and the lower sheet 112, and a plug plate 41 for interference insertion into the installation space 113 is integrally formed on one side of the ball joint assembly 4, and positioning convex ribs 411 are integrally formed on the upper and lower sides of the plug plate 41, and the positioning convex ribs 411 are integrally formed. The end away from the ball joint assembly 4 is in a gradually expanding shape, and the upper piece 111 and the lower piece 112 are both provided with a positioning hole 114 for the positioning rib 411 to cooperate with and insert. Specifically, the positioning rib 411 is interference fit in the positioning hole 114, and after the gradually expanding positioning rib 411 is inserted into the positioning hole 114, it takes a lot of force to pull it out, and the plug plate 41 is provided with a fixing hole 412 at the position of the positioning rib 411, and the upper piece 111 and the lower piece 112 are both provided with a first through hole 115 corresponding to the fixing hole 412, and the plug plate 41 is provided with a stud 5 passing through the fixing hole 412 and the first through hole 115, and the stud 5 is threadedly connected with a first nut 53. Among them, since the insert plate 41 is inserted into the installation space 113 between the upper plate 111 and the lower plate 112 by interference fit, and is inserted into the positioning openings 114 of the upper plate 111 and the lower plate 112 through the gradually expanding positioning ribs 411, it is very firm, making it difficult for the ball joint assembly 4 to shake relative to the control arm body 1. When disassembling, it requires greater force or the use of tools to pull it out, and then it is fixed by the threaded cooperation of the stud 5 and the first nut 53. This structure is very firm and reliable. Even if the stud 5 and the first nut 53 are loose, the ball joint assembly 4 will not shake easily, thereby improving the structural strength of the ball joint assembly 4 fixed to the control arm body 1.

[0025] Further, such as Figure 5 As shown, the stud 5 includes a head 51 located on the lower sheet 112 and a column 52 passing through the fixing hole 412 and the first through hole 115 to reach the upper part of the upper sheet 111, wherein the column 52 is fixedly connected to an anti-rotation strip 521 on the side wall of one end close to the head 51, and as shown in FIG. Figure 4 As shown, corresponding notches 6 for inserting the anti-rotation strip 521 are provided on the lower plate 112 and the plug plate 41. By providing the anti-rotation strip 521 on the column 52 and inserting it into the notches 6 on the lower plate 112 and the plug plate 41, the stud 5 can be prevented from rotating relative to the control arm body 1 and the plug plate 41.

[0026] Furthermore, an anti-loosening groove 522 is formed on one end of the column 52 that penetrates through the upper sheet 111, and a wedge 54 is inserted into the anti-loosening groove 522. The wedge 54 is pressed tightly against the inner surface of the first nut 53. This structure can effectively prevent the first nut 53 from loosening.

[0027] In addition, in the utility model, fastening holes 413 are provided on the left and right sides of the positioning rib 411 and on the side away from the ball joint assembly 4, and second through holes 116 are provided on the upper sheet 111 and the lower sheet 112 corresponding to the fastening holes 413, and a detachable fastener passing through the fastening hole 413 and the second through hole 116 is provided on the plug plate 41. The detachable fastener is used to further strengthen the connection strength between the plug plate 41 and the upper sheet 111 and the lower sheet 112, so that the ball joint assembly 4 is less likely to shake.

[0028] Specifically, the detachable fastener includes a screw rod 71 that passes through the lower plate 112, the insert plate 41, and the upper plate 111 in sequence through the fastening hole 413 and the second through hole 116; a second nut 72 that is threadedly connected to the screw rod 71; and a locking gasket 73 that is compressed between the second nut 72 and the upper plate 111. In addition, a third nut 74 is threadedly connected to the screw rod 71, and the third nut 74 is compressed on the second nut 72. The double nut structure can have better anti-loosening performance.

[0029] It should also be pointed out that the terms used in the present invention, such as "front", "rear", "vertical", "horizontal", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel automobile control arm, comprising a control arm body, a front bushing assembly, a rear bushing assembly and a ball joint assembly, wherein the front bushing assembly and the rear bushing assembly are both fixedly connected to the control arm body, and characterized in that: The control arm body includes a connecting end for installing a ball joint assembly, and the connecting end includes an upper plate and a lower plate fixedly connected, and an installation space is provided between the upper plate and the lower plate. A plug plate for interference insertion into the installation space is integrally formed on one side of the ball joint assembly, and positioning ribs are integrally formed on the upper and lower sides of the plug plate, and the positioning rib is gradually expanded at one end away from the ball joint assembly. The upper plate and the lower plate each have a positioning opening for the positioning rib to cooperate with and insert, and a fixing hole is penetrated through the plug plate at the position of the positioning rib, and a first through hole is provided on the upper plate and the lower plate corresponding to the fixing hole, and a stud passing through the fixing hole and the first through hole is provided on the plug plate, and a first nut is threadedly connected to the stud.

2. A novel automobile control arm according to claim 1, characterized in that: The stud includes a head located on the lower sheet and a column passing through a fixing hole and a first through hole to reach the top of the upper sheet. The column is fixedly connected to an anti-rotation strip on a side wall at one end close to the head. The lower sheet and the plug plate are correspondingly provided with notches for inserting the anti-rotation strip.

3. A novel automobile control arm according to claim 2, characterized in that: An anti-loosening groove is provided on one end of the column that penetrates through the upper sheet body, and a wedge is inserted into the anti-loosening groove. The wedge is pressed tightly on the inner surface of the first nut.

4. A novel automobile control arm according to claim 1, characterized in that: The positioning convex rib is interference fit in the positioning opening.

5. A novel automobile control arm according to claim 1, characterized in that: The insert plate is provided with fastening holes on both sides of the positioning rib and on the side away from the ball joint assembly, the upper plate and the lower plate are provided with second through holes corresponding to the fastening holes, and the insert plate is provided with detachable fasteners passing through the fastening holes and the second through holes.

6. A novel automobile control arm according to claim 5, characterized in that: The detachable fastener includes a screw rod which passes through the lower plate, the insert plate and the upper plate in sequence through the fastening hole and the second through hole; a second nut threadedly connected to the screw rod; and an anti-loosening gasket compressed between the second nut and the upper plate.

7. A novel automobile control arm according to claim 6, characterized in that: The screw rod is also threadedly connected with a third nut, and the third nut is pressed tightly on the second nut.

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