Bolt following rotation preventing structure and vehicle

Abstract

The utility model discloses a bolt follow-up rotation preventing structure and a vehicle, and relates to the technical field of automobile wheel toe-in adjustment. The structure comprises a bolt which sequentially penetrates through a first connected piece and a second connected piece and is connected with a locking nut; the gasket sleeves the bolt, is clamped with the bolt and is used for limiting the gasket to generate relative rotation around the bolt; wherein the gasket is provided with a stress part, and the stress part is used for bearing externally applied torque force in the circumferential direction of the gasket. The bolt and the gasket are designed to be in a clamping connection mode, the stress part is used for bearing torque force which is externally applied and is in the circumferential direction of the gasket, and therefore the gasket is limited, the bolt is indirectly limited in the circumferential direction, the bolt is prevented from rotating along with rotation of the locking nut, and the locking device is suitable for the technical field of automobile wheel toe-in adjustment. And the bolt can be prevented from rotating along with the locking nut to influence the wheel toe-in adjusting precision. Operation space does not need to be reserved at the bolt end, and later design and development of a vehicle chassis are facilitated.

Description

Technical Field

[0001] The present application generally relates to the technical field of automobile wheel toe adjustment, and in particular to a bolt anti-rotation structure and a vehicle. Background Art

[0002] At present, the wear of automobile wheels has received more and more attention. Due to unqualified wheel toe-in, the tires will wear out early and wear out abnormally, and the tires will be scrapped prematurely, which will also cause great economic losses and sometimes cause tire blowouts and traffic accidents.

[0003] Traditional vehicle wheels are connected to the frame with eccentric bolts in a through-type manner. When adjusting the wheel toe, a rotation limiting tool is used to fix the bolt end, and then a tightening tool is used to tighten the nut end to ensure the accuracy of wheel toe adjustment. However, the existing vehicle chassis cannot avoid this, and it is necessary to reserve operating space for the nut end tightening tool and the bolt end rotation limiting tool, which limits the chassis design and development. Therefore, we propose a bolt rotation prevention structure and a vehicle. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a bolt anti-rotation structure and a vehicle that reduces the operating space requirement, reduces the restrictions on chassis development and design, and ensures the accuracy of wheel toe adjustment.

[0005] In a first aspect, the present application provides a bolt anti-rotation structure, comprising:

[0006] A bolt, wherein the bolt passes through the first connected member and the second connected member in sequence and is connected to a locking nut;

[0007] A gasket, which is sleeved on the bolt and clamped with the bolt to limit the relative rotation of the gasket around the bolt;

[0008] Wherein, the gasket has a force-bearing portion, and the force-bearing portion is used to bear the torque force applied from the outside along the circumferential direction of the gasket.

[0009] According to the technical solution provided in the present application, at least one slot is formed on the side wall of the screw portion of the bolt, and the slot extends along the axial direction of the screw portion to the free end of the screw portion.

[0010] According to the technical solution provided in the present application, the gasket is provided with a through hole, and the through hole is used for the gasket to be sleeved on the bolt;

[0011] The through hole is provided with a protrusion corresponding to the clamping groove, which is used for clamping the gasket and the bolt.

[0012] According to the technical solution provided in the present application, the gasket includes a gasket body and a boss extending axially along the gasket body, and the through hole extends axially along the boss;

[0013] The force-bearing portion of the gasket includes a plurality of engaging teeth evenly distributed along the circumference of the boss, and limiting grooves are formed between adjacent engaging teeth.

[0014] According to the technical solution provided in the present application, the bolt anti-rotation structure further includes a limiting assembly, and the limiting assembly includes a hook, and the hook is used to be engaged with the limiting groove;

[0015] The limiting component also includes:

[0016] A limit head, wherein a limit slot is provided on the limit head, and the hook is arranged at the edge of the limit slot;

[0017] A handle is arranged on a side of the limiting head away from the hook.

[0018] According to the technical solution provided in the present application, a flange surface is provided at one end of the locking nut, and the flange surface is in contact with the boss surface;

[0019] The cross section of the boss along a direction perpendicular to the axial direction of the bolt is circular, and the depth of the limiting groove is less than a first value, which is the absolute value of the difference between the radius of the boss and the radius of the flange surface of the locking nut.

[0020] According to the technical solution provided in this application, the gasket body, the boss and the engaging teeth are an integrally formed structure;

[0021] The boss is arranged on one side of the gasket body close to the locking nut.

[0022] According to the technical solution provided in the present application, the hook, the limiting head and the handle are an integrally formed structure.

[0023] According to the technical solution provided in the present application, the bolt is an eccentric bolt, and the gasket is an eccentric gasket.

[0024] In a second aspect, the present application provides a vehicle, comprising: a wheel, a vehicle frame and the above-mentioned bolt anti-rotation structure; the wheel is the first connected member, and the vehicle frame is the second connected member.

[0025] It can be seen from the above technical solution that the present application has at least the following beneficial effects:

[0026] The present application discloses a bolt anti-rotation structure, which includes: a bolt and a locking nut used in combination; the bolt passes through a first connected member and a second connected member in sequence, and is connected to the locking nut; a gasket is also sleeved on the bolt, and the bolt and the gasket are clamped together to limit the relative rotation of the gasket around the bolt; wherein the gasket has a force-bearing portion, which is used to bear the torque force applied from the outside along the circumferential direction of the gasket.

[0027] The present application designs the bolt and the gasket to be in a clamping form, and utilizes the force-bearing part to bear the externally applied torque force along the circumferential direction of the gasket, thereby restricting the gasket, and then indirectly limiting the bolt circumferentially to prevent the bolt from rotating with the rotation of the locking nut. With respect to the technical field of automobile wheel toe adjustment, it can prevent the bolt from rotating with the locking nut and affecting the wheel toe adjustment accuracy. Moreover, compared with the prior art, the present application does not need to reserve operating space at the bolt end, and adjusts the structure that limits the rotation of the bolt end to a bolt-gasket clamping connection, and the externally applied torque force acts on the gasket to limit the gasket and bolt circumferentially, which is beneficial to the later design and development of the vehicle chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Other features, objects and advantages of the present application will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings.

[0029] Figure 1 Schematic diagram of the bolt anti-rotation structure.

[0030] Figure 2 It is a schematic diagram of the front view structure of the gasket.

[0031] Figure 3 It is a schematic diagram of the side structure of the gasket.

[0032] Figure 4 It is a schematic diagram of the structure of the limit component.

[0033] Numbers in the figure: 1. bolt; 2. locking nut; 3. gasket; 4. hook; 5. screw part; 6. slot; 7. gasket body; 8. protrusion; 9. boss; 10. engaging tooth; 11. limiting slot; 12. flange surface; 13. limiting head; 14. handle. DETAILED DESCRIPTION

[0034] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] In order to make the description of the following embodiments clear and concise, a brief introduction to the related technology is first given:

[0037] As the car is used for a longer time, the wheels may wear out, that is, irregular wear appears on the tire surface. The reason is that the wheel toe is not adjusted correctly, the direction is biased, and the car drifts when driving at high speed. One of the solutions to the tire wear phenomenon is to adjust the wheel toe and camber angle to keep the wheel in a dynamically balanced state. Among them, the wheel toe is the angle between the center line of the wheel and the center line of the vehicle. However, the traditional wheel toe adjustment method requires reserved operating space, which limits the design and development of the vehicle chassis.

[0038] In view of this, the present application designs the bolt 1 and the gasket 3 to be in a clamping form, and uses the force-bearing part to bear the externally applied torque force along the circumferential direction of the gasket 3, thereby limiting the gasket 3, and then indirectly limiting the bolt 1 circumferentially, preventing the bolt 1 from rotating with the rotation of the locking nut 2, thereby affecting the wheel toe adjustment accuracy. Moreover, compared with the prior art, the present application does not need to reserve operating space at the bolt end, and adjusts the structure that limits the rotation of the bolt end to a clamping connection between the bolt 1 and the gasket 3, and the externally applied torque force acts on the gasket 3, and the gasket 3 and the bolt 1 are limited circumferentially, which is beneficial to the later design and development of the vehicle chassis.

[0039] In order to make the technical solution of the present application clearer and easier to understand, the application scenarios of the present application are first introduced below. Figure 1 As shown, this figure is a schematic diagram of a bolt anti-rotation structure provided in an embodiment of the present application. The structure includes:

[0040] Bolt 1 passes through the first connected member and the second connected member in sequence, and is connected to the locking nut 2.

[0041] It should be noted that the first connected member and the second connected member refer to the same or different parts that need to be connected together. "First" and "second" are only for the convenience of description and do not limit the connected members themselves.

[0042] For example, the bolt 1 includes: a bolt head and a screw portion 5, wherein the bolt head is arranged at one end of the screw portion 5; when the bolt 1 passes through the first connected member and the second connected member in sequence, the bolt head is located on the side of the first connected member away from the second connected member, and the free end of the screw portion 5 is located on the side of the second connected member away from the first connected member. Here, the aforementioned connection form is only one implementation of the present application, and the present application does not limit the positions of the bolt 1 and the locking nut 2, as long as the two components can connect the first connected member and the second connected member.

[0043] The gasket 3 is sleeved on the bolt 1 and clamped with the bolt 1 to limit the relative rotation of the gasket 3 around the bolt 1;

[0044] The gasket 3 has a force-bearing portion, which is used to bear the torque force applied from the outside along the circumferential direction of the gasket 3 .

[0045] It should be noted that the type of the bolt 1 is, for example, an eccentric bolt, and the type of the washer 3 is, for example, an eccentric washer.

[0046] Furthermore, if Figure 1 As shown, at least one slot 6 is formed on the side wall of the screw portion 5 of the bolt 1 , and the slot 6 extends along the axial direction of the screw portion 5 to the free end of the screw portion 5 .

[0047] Furthermore, the gasket 3 is provided with a through hole, and the through hole is used for the gasket 3 to be sleeved on the bolt 1;

[0048] The through hole is provided with a protrusion 8 corresponding to the clamping groove 6 for clamping the gasket 3 and the bolt 1 .

[0049] In order to ensure that the bolt 1 and the gasket 3 are subjected to uniform force, the present application provides two symmetrically arranged slots 6 on the side wall of the screw portion 5, and accordingly, two protrusions 8 corresponding to the slots 6 are provided on the inner wall of the through hole. The gasket 3 is sleeved on the bolt 1 using the through hole, and then the gasket 3 is pushed to allow the protrusions 8 to slide in the corresponding slots 6 until the gasket body 7 is in surface contact with the first connected part or the second connected part, that is, the gasket 3 is now installed in place.

[0050] Furthermore, if Figure 2 and Figure 3 As shown, the gasket 3 comprises: a gasket body 7 and a boss 9 extending axially along the gasket body 7, and a through hole extending axially along the boss 9;

[0051] The force-bearing portion of the gasket 3 includes a plurality of engaging teeth 10 evenly distributed along the circumference of the boss 9 , and a limiting groove 11 is formed between adjacent engaging teeth 10 .

[0052] The number of the engaging teeth 10 can be set according to actual needs.

[0053] In addition, the bolt anti-rotation structure further includes a limiting component, which includes a hook 4 that is engaged with the limiting groove 11 .

[0054] When the locking nut 2 needs to be twisted, the hook 4 is inserted into the limiting groove 11, and a reaction force is applied to the limiting assembly, thereby circumferentially limiting the washer 3 and the bolt 1. Here, the reaction force applied to the limiting assembly is opposite to the force of twisting the locking nut 2, preventing the washer 3 and the bolt 1 from rotating with the rotation of the locking nut 2.

[0055] Furthermore, the limit assembly further includes: a limit head 13, a limit slot is provided on the limit head 13, and a hook 4 is arranged at the edge of the limit slot; Figure 4 As shown, the cross-sectional shape of the limiting bayonet is similar to a semicircular shape. When in use, the inner wall of the limiting bayonet can contact the side wall surface of the engaging tooth 10, thereby cooperating with the hook 4 to circumferentially limit the gasket 3 and the bolt 1.

[0056] The handle 14 is arranged on a side of the limit head 13 away from the hook 4 ; the handle 14 is a long rod-shaped structure, which is convenient for a person to apply a reaction force to the limit head 13 .

[0057] By inserting the hook 4 into the limiting groove 11 and applying a reaction force to the handle 14 , that is, applying a torque force along the circumferential direction of the gasket 3 to the gasket 3 , the gasket 3 and the bolt 1 are limited in the circumferential direction.

[0058] In addition, the hook 4, the stopper 13 and the handle 14 are an integrally formed structure, and the hook 4, the stopper 13 and the handle 14 can be directly made by a mold. Among them, the hook 4 is formed by bending the edge of the stopper away from the handle 14 toward the center of the circle where the arc line of the inner wall of the stopper is located.

[0059] The curvature radius of the inner wall of the position-limiting bayonet and the curvature radius of the arc formed by the connecting line of the outer walls of the engaging teeth 10 are set correspondingly;

[0060] When the hook 4 is inserted into the limiting groove 11, the inner wall of the limiting bayonet contacts the side wall surface of the engaging teeth 10 arranged along the circumference of the boss 9, so that the hook 8 is clamped with the limiting groove 11. That is, the contact area between the limiting head 13 and the boss 9 is increased, and the auxiliary hook 8 can be stably clamped with the limiting groove 11, thereby ensuring the limiting effect of the gasket 3 and the bolt 1.

[0061] By the contact between the inner wall of the limiting bayonet and the side wall of the engaging tooth 10, and the engagement between the hook 4 and the limiting groove 11, the contact area between the limiting assembly and the boss 9 is increased, so that the reaction force acts evenly on the boss 9, thereby limiting the gasket 3 and the bolt 1 more stably.

[0062] Furthermore, the boss 9 is arranged on a side of the gasket body 7 close to the locking nut 2 to facilitate the engagement between the hook 4 and the limiting groove 11 .

[0063] Furthermore, a flange surface 12 is provided at one end of the locking nut 2 , and when the bolt 1 and the locking nut 2 are connected, the flange surface 12 is in surface contact with the boss 9 .

[0064] The flange surface 12 is used to increase the contact area between the locking nut 2 and the boss 9 to ensure the connection tightness between the vehicle frame and the wheel.

[0065] It should be noted that the cross section of the boss 9 perpendicular to the axial direction of the bolt 1 is circular; the depth of the limiting groove 11 is less than a first value, which is the absolute value of the difference between the radius of the boss 9 and the radius of the flange surface 12 of the locking nut 2. When the depth of the limiting groove 11 is greater than or equal to the absolute value, it is easy to cause the hook 4 and the limiting groove 11 to be unable to be locked or completely stuck, affecting normal use.

[0066] The gasket body 7, the boss 9 and the engaging teeth 10 are, for example, an integrally formed structure and can be directly manufactured by a mold.

[0067] The structure designed in this application is suitable for scenarios such as vehicle inclination and wheel toe adjustment.

[0068] The present application also provides a vehicle, comprising: a wheel, a vehicle frame and the above-mentioned bolt anti-rotation structure; wherein the wheel is a first connected member and the vehicle frame is a second connected member. The vehicle has the functions and advantages of the above-mentioned bolt anti-rotation structure, which will not be described in detail here.

[0069] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A bolt anti-rotation structure, characterized in that: include: A bolt (1), wherein the bolt (1) passes through the first connected member and the second connected member in sequence and is connected to a locking nut (2); A gasket (3), the gasket (3) being sleeved on the bolt (1) and being engaged with the bolt (1) to limit the relative rotation of the gasket (3) around the bolt (1); The gasket (3) has a force-bearing portion, and the force-bearing portion is used to bear the torque force applied externally along the circumferential direction of the gasket (3).

2. A bolt anti-rotation structure according to claim 1, characterized in that: At least one slot (6) is provided on the side wall of the screw rod portion (5) of the bolt (1), and the slot (6) extends along the axial direction of the screw rod portion (5) to the free end of the screw rod portion (5).

3. A bolt anti-rotation structure according to claim 2, characterized in that: The gasket (3) is provided with a through hole, and the through hole is used for the gasket (3) to be sleeved on the bolt (1); The through hole is provided with a protrusion (8) arranged corresponding to the clamping groove (6) and used for clamping the gasket (3) and the bolt (1).

4. The bolt anti-rotation structure according to claim 3, characterized in that: The gasket (3) comprises a gasket body (7) and a boss (9) extending axially along the gasket body (7), and the through hole extends axially along the boss (9); The force-bearing portion of the gasket (3) comprises a plurality of engaging teeth (10) evenly distributed along the circumference of the boss (9), and limiting grooves (11) are formed between adjacent engaging teeth (10).

5. The bolt anti-rotation structure according to claim 4, characterized in that: The bolt anti-rotation structure further comprises a limiting assembly, wherein the limiting assembly comprises a hook (4), and the hook (4) is used for being connected to the limiting groove (11); The limiting component also includes: A limit head (13), wherein a limit slot is provided on the limit head (13), and the hook (4) is arranged at the edge of the limit slot; A handle (14), wherein the handle (14) is arranged on a side of the limiting head (13) away from the hook (4).

6. The bolt anti-rotation structure according to claim 4, characterized in that: A flange surface (12) is provided at one end of the locking nut (2), and the flange surface (12) is in surface contact with the boss (9); The cross section of the boss (9) along a direction perpendicular to the axial direction of the bolt (1) is circular, and the depth of the limiting groove (11) is less than a first value, which is the absolute value of the difference between the radius of the boss (9) and the radius of the flange surface (12) of the locking nut (2).

7. The bolt anti-rotation structure according to claim 4, characterized in that: The gasket body (7), the boss (9) and the engaging teeth (10) are an integrally formed structure; The boss (9) is arranged on a side of the gasket body (7) close to the locking nut (2).

8. The bolt anti-rotation structure according to claim 5, characterized in that: The hook (4), the limiting head (13) and the handle (14) are an integrally formed structure.

9. A bolt anti-rotation structure according to claim 1 or 2, characterized in that: The bolt (1) is an eccentric bolt, and the gasket (3) is an eccentric gasket.

10. A vehicle, characterized in that: include: A wheel, a vehicle frame, and the bolt anti-rotation structure according to any one of claims 1 to 9; the wheel is the first connected member, and the vehicle frame is the second connected member.

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