Track control arm

Abstract

The utility model discloses a track control arm which comprises an arm body, a lining installed on the arm body and a ball head, a plug-in structure is arranged between the ball head and the arm body, the plug-in structure has a plug-in state and a non-plug-in state which enable the ball head and the arm body to be connected, and a locking assembly is arranged between the ball head and the arm body. The locking assembly locks the plug-in structure to be in a plug-in state. The control arm has the following advantages and effects that the size is small, the structural strength is high, the later maintenance cost is low, and therefore the layout flexibility of the control arm is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to an automobile accessory, in particular to a track control arm. BACKGROUND

[0002] The control arm of the automobile is also called swing arm, and is an important component in the suspension system of the automobile.

[0003] The control arm is composed of an arm body, a bushing and a ball head, and the connection between the ball head and the arm body is mainly one of integral connection and fastener connection. Although the integral connection has compact structure, the whole control arm needs to be replaced once the ball head is damaged, which greatly increases the maintenance cost in the later period. Although the fastener connection solves the problem of easy replacement of the ball head, concentrated stress phenomenon is prone to occur due to small structure contact surface. In order to ensure the structural strength of the control arm, multiple fixing methods need to be used, which brings new problems, i.e. the control arm needs to provide larger installation space, thereby increasing the volume and weight of the control arm, which not only increases the production cost, but also reduces the layout flexibility of the control arm and other components, and adversely affects the overall design of the automobile. SUMMARY

[0004] The utility model aims at providing a track control arm, which is small in size, high in structural strength and low in maintenance cost in the later period, so as to improve the layout flexibility of the control arm.

[0005] The above technical purpose of the utility model is achieved by the following technical scheme: a track control arm, comprising an arm body, a bushing mounted on the arm body and a ball head, wherein an insertion structure is arranged between the ball head and the arm body, the insertion structure has an insertion state and a non-insertion state, the ball head and the arm body are provided with a locking assembly, and the locking assembly locks the insertion structure in the insertion state.

[0006] By adopting the above technical scheme, the insertion structure is arranged to realize the butt joint between the arm body and the ball head, and then the locking assembly is arranged to lock the insertion structure in the insertion state, so as to complete the fixed installation between the arm body and the ball head. When the damaged ball head needs to be replaced, the locking assembly is unlocked to complete the replacement of the ball head alone. The insertion structure is used to increase the butt joint contact area between the arm body and the ball head, so as to avoid concentrated stress phenomenon and the setting method does not need large installation space. The above setting method makes the control arm small in size, high in structural strength and low in maintenance cost in the later period, so as to improve the layout flexibility of the control arm.

[0007] Further arrangement is that the plug-in structure comprises a plug block fixedly arranged on the ball head and a plug-in slot formed on the arm body and for the plug block to be inserted, and a stop structure is formed between the plug block and the plug-in slot to limit the relative rotation of the two.

[0008] By adopting the above technical scheme, the plug-in slot cooperates with the plug block to realize the plug-in of the arm body and the ball head, and then the stop structure is arranged to limit the relative rotation of the two, thereby ensuring the stability of the plug-in structure.

[0009] Further arrangement is that the stop structure is a stop plane arranged on the side wall of the plug block and a matching plane formed on the side wall of the plug-in slot and corresponding to the position of the stop plane, and when the plug block is inserted into the plug-in slot, the stop plane abuts against the matching plane.

[0010] By adopting the above technical scheme, the plug block is inserted into the plug-in slot, and the relative rotation of the plug block and the plug-in slot is limited by the abutting of the stop plane and the matching plane, thereby achieving the purpose of stabilizing the plug-in.

[0011] Further arrangement is that the outer peripheral wall of the plug block is arranged to be gradually tapered in the direction of being inserted into the plug-in slot, and the shape of the side wall of the plug-in slot is matched with the shape of the outer peripheral wall of the plug block.

[0012] By adopting the above technical scheme, the plug-in abutting is more effective by the arrangement, and the fitting gap formed between the plug-in structures is compensated, thereby further improving the stability of the plug-in structure.

[0013] Further arrangement is that the locking assembly comprises a limiting belt and a fixing structure for fixing the limiting belt and the arm body, and a limiting area is formed in the limiting belt, and when the limiting belt is fixed to the arm body, the ball head is located in the limiting area and the plug-in structure is in the plug-in state.

[0014] By adopting the above technical scheme, the limiting area is formed by the limiting belt cooperating with the fixing structure, thereby realizing the fixation between the arm body and the ball head.

[0015] Further arrangement is that the fixing structure comprises limiting holes arranged at both ends of the limiting belt, a fixing hole arranged on the arm body, a bolt sequentially penetrating through the limiting holes and the fixing hole, and a nut threadedly connected with the bolt.

[0016] By adopting the above technical scheme, the limiting area is formed by the bending of the limiting belt, and then the bolt sequentially penetrates through the limiting holes and the fixing hole and is threadedly connected with the nut, thereby realizing the detachable fixation of the limiting belt on the arm body.

[0017] Further arrangement is that the ball head is provided with a limiting embedding slot for the limiting belt to be embedded at a position corresponding to the limiting belt.

[0018] By adopting the above technical scheme, the limiting band is embedded into the limiting groove to improve the stability of the matching position of the two, and the dislocation of the limiting band caused by relative sliding is avoided.

[0019] Further, the ball head is formed with a cooperating bolt for limiting the safety structure of the arm body and the ball head from being separated.

[0020] By adopting the above technical scheme, when the limiting band is broken again, the safety structure can be used for emergency limiting of the arm body and the ball head to limit the separation of the two, thereby playing an emergency safety role.

[0021] Further, the safety structure includes a safety groove connecting the bottom of the insertion slot and the fixing hole, a safety column fixedly connected with the insertion block and extending into the safety groove, and a safety hole provided on the safety column and through which the bolt passes.

[0022] By adopting the above technical scheme, the bolt passes through the safety hole during the fixing process, thereby limiting the emergency separation of the arm body and the ball head.

[0023] In summary, the utility model has the following beneficial effects: the utility model has small size, high structural strength and low maintenance cost in later period, thereby improving the layout flexibility of the control arm. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 It is a structural schematic view of an embodiment;

[0025] Fig. 2 It is an exploded view of an embodiment;

[0026] Fig. 3 It is a partial sectional view of an embodiment;

[0027] Fig. 4 It is a partial structural schematic view of an embodiment.

[0028] In the figure: 1, arm body; 2, bushing; 3, ball head; 4, locking assembly; 41, limiting band; 42, limiting area; 43, limiting hole; 44, fixing hole; 45, bolt; 46, nut; 51, insertion block; 52, insertion slot; 61, stop plane; 62, cooperating plane; 7, limiting groove; 81, safety groove; 82, safety column; 83, safety hole. DETAILED DESCRIPTION

[0029] The utility model will be further described in detail below in combination with the drawings.

[0030] REFERENCE Figs. 1 to 4The rail control arm comprises an arm body 1, a bushing 2 fixedly mounted on the arm body 1, and a ball head 3.

[0031] The plug-in structure comprises a plug block 51 integrally arranged on the shell of the ball head 3 and a plug groove 52 formed on the arm body 1 and into which the plug block 51 is inserted, and a stop structure is formed between the plug block 51 and the plug groove 52 to limit the relative rotation of the two.

[0032] The stop structure comprises a stop plane 61 formed on the side wall of the plug block 51 and a matching plane 62 formed on the side wall of the plug groove 52 and corresponding to the position of the stop plane 61. When the plug block 51 is inserted into the plug groove 52, the stop plane 61 abuts against the matching plane 62, and a plurality of sets of the stop plane 61 and the matching plane 62 are arranged around the outer peripheral wall of the plug block 51. The outer peripheral wall of the plug block 51 is arranged to be gradually tapered in the direction of insertion into the plug groove 52, and the shape of the side wall of the plug groove 52 is matched with the shape of the outer peripheral wall of the plug block 51.

[0033] The locking assembly 4 comprises a limiting belt 41 and a fixing structure for fixing the limiting belt 41 and the arm body 1, and a limiting area 42 is formed in the limiting belt 41. When the limiting belt 41 is fixed to the arm body 1, the ball head 3 is located in the limiting area 42 and the plug-in structure is in the plug-in state.

[0034] The fixing structure comprises limiting holes 43 formed at both ends of the limiting belt 41, a fixing hole 44 formed on the arm body 1, a bolt 45 sequentially penetrating through the limiting holes 43 and the fixing hole 44, and a nut 46 threadedly connected with the bolt 45. The limiting belt 41 is preferably a steel belt, and the shell of the ball head 3 is provided with a limiting embedding groove 7 corresponding to the position of the limiting belt 41 for embedding the limiting belt 41.

[0035] The ball head 3 is formed with a matching bolt 45 for a safety structure for limiting the separation of the arm body 1 and the ball head 3. The safety structure comprises a safety groove 81 formed on the arm body 1 and communicating with the bottom of the plug groove 52 and the fixing hole 44, a safety column 82 integrally connected with the plug block 51 and extending into the safety groove 81, and a safety hole 83 formed on the safety column 82 and through which the bolt 45 penetrates.

[0036] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model. Those skilled in the art can make modifications to the embodiment without creative contribution after reading the specification, but as long as the modifications are within the scope of the claims of the utility model, they are protected by the patent law.

Claims

1. A track control arm comprising an arm body (1), a bushing (2) mounted to the arm body (1), and a ball stud (3), characterized in that: The ball head (3) and the arm body (1) are provided with a plug-in structure, the plug-in structure has a plug-in state and a non-plug-in state, the ball head (3) and the arm body (1) are provided with a locking assembly (4), and the locking assembly (4) locks the plug-in structure in the plug-in state.

2. The track control arm of claim 1, wherein: The plug-in structure comprises a plug block (51) fixedly arranged on the ball head (3) and a plug groove (52) formed on the arm body (1) and used for inserting the plug block (51), and a stop structure is formed between the plug block (51) and the plug groove (52) to limit relative rotation of the plug block (51) and the plug groove (52).

3. The track control arm of claim 2, wherein: The stop structure comprises a stop plane (61) arranged on the side wall of the plug block (51) and a matching plane (62) formed on the side wall of the plug groove (52) and corresponding to the position of the stop plane (61), and when the plug block (51) is inserted into the plug groove (52), the stop plane (61) abuts against the matching plane (62).

4. The track control arm of claim 2, wherein: The outer peripheral wall of the plug block (51) is arranged in a gradually tapered manner along the direction of insertion into the plug groove (52), and the shape of the side wall of the plug groove (52) is matched with the shape of the outer peripheral wall of the plug block (51).

5. The track control arm of claim 2, wherein: The locking assembly (4) comprises a limiting belt (41) and a fixing structure for fixing the limiting belt (41) and the arm body (1), a limiting area (42) is formed in the limiting belt (41), when the limiting belt (41) is fixed on the arm body (1), the ball head (3) is located in the limiting area (42) and the plug-in structure is in the plug-in state.

6. The track control arm of claim 5, wherein: The fixing structure comprises limiting holes (43) arranged at both ends of the limiting belt (41), a fixing hole (44) arranged on the arm body (1), a bolt (45) sequentially penetrating through the limiting holes (43) and the fixing hole (44), and a nut (46) threadedly connected with the bolt (45).

7. The track control arm of claim 5, wherein: The ball head (3) is provided with a limiting embedding groove (7) corresponding to the position of the limiting belt (41) and used for embedding the limiting belt (41).

8. The track control arm of claim 6, wherein: The ball head (3) is provided with a safety structure comprising a safety groove (81) communicating the bottom of the plug groove (52) and the fixing hole (44), a safety column (82) fixedly connected with the plug block (51) and extending into the safety groove (81), and a safety hole (83) arranged on the safety column (82) and used for penetrating the bolt (45).

9. The track control arm of claim 8, wherein: ​

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