Self-tightening hub bearing bolt capable of preventing thread loosening

Abstract

The utility model discloses a self-tightening hub bearing bolt capable of preventing thread loosening, which comprises a bolt body, and threads are arranged at the bottom of the bolt body. The screw thread is connected with a nut; an auxiliary groove is formed in the bottom of the bolt body and located in the center of the bottom of the bolt body, and the auxiliary groove is in an octagonal shape. An anti-loosening block is arranged at the bottom of the nut, and the anti-loosening block is arranged in a triangular shape; positioning blocks are arranged at the bottom of the bolt body, and the positioning blocks are arranged in a triangular shape at equal angles; the bottom of the bolt body is slidably connected with an auxiliary block, and the auxiliary block is arranged in a hexagonal shape. The inner wall of the auxiliary block and the outer wall of the bottom of the bolt body form a matched sliding mechanism. The self-tightening hub bearing bolt capable of preventing thread loosening is provided with the auxiliary groove, after thread loosening of the bolt body, a tool can be inserted into the auxiliary groove, then the bolt body can be driven to rotate through the auxiliary groove, and therefore the situation that the bolt body is difficult to disassemble due to thread loosening is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to wheel hub bearing bolt technical field, concretely is a kind of self-tightening wheel hub bearing bolt of preventing tooth slip. BACKGROUND

[0002] Wheel hub bearing bolt is the fastener in automobile chassis system, and its main function is to firmly fix wheel hub bearing assembly on steering knuckle or brake drum, to ensure the reliable connection of vehicle wheel and vehicle suspension system;

[0003] When existing wheel hub bearing is disassembled, bolt needs to be screwed, so that wheel hub bearing can be disassembled, and in long-term disassembly, the friction between tool and bolt can cause bolt wear, which can cause tooth slip, so that wheel hub bearing is difficult to disassemble;

[0004] To solve the above-mentioned defects, a hexagonal bolt with publication number CN202612324U is provided, which is provided with a cross-shaped groove on the top of the hexagonal nut, and the bolt can be assembled and disassembled by using wrench or cross head screwdriver, so that the assembly and disassembly are very convenient;An axial groove is provided on the side surface of the nut, which provides an additional force point for other tools, and is used for the bolt that cannot be disassembled by using common wrench when the thread slips, which avoids the previous disassembly by cutting off the screw rod, and has simple structure and convenient use;

[0005] In the actual use of the above device, although the cross-shaped groove is used to avoid tooth slip, the cross-shaped groove is arranged in cross shape, which can cause the stress point of the cross-shaped groove to be concentrated, thereby causing the cross-shaped groove to be damaged due to excessive stress, and tooth slip is caused.

[0006] Therefore, we propose a self-tightening wheel hub bearing bolt to prevent tooth slip, which can solve the above problems. INVENTION CONTENTS

[0007] The utility model aims at providing a self-tightening wheel hub bearing bolt to prevent tooth slip, to solve the problem that the cross-shaped groove is arranged in cross shape in the current market, which can cause the stress point of the cross-shaped groove to be concentrated, thereby causing the cross-shaped groove to be damaged due to excessive stress, and tooth slip is caused.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a self-tightening wheel hub bearing bolt to prevent tooth slip, comprising a bolt body, a thread is arranged at the bottom of the bolt body;

[0009] A nut is connected to the thread;

[0010] A secondary groove is arranged at the bottom of the bolt body, and the secondary groove is arranged at the center of the bottom of the bolt body, and the secondary groove is arranged in octagonal shape.

[0011] Preferably, the bottom of the nut is provided with an anti-loosening block, and the anti-loosening block is triangular in shape.

[0012] Preferably, the bottom of the bolt body is provided with a positioning block, and the positioning block is arranged in a triangular shape at equal angles.

[0013] Preferably, an auxiliary block is slidably connected to the bottom of the bolt body, and the auxiliary block is hexagonal in shape.

[0014] Preferably, the inner wall of the auxiliary block and the outer wall of the bottom of the bolt body form a sliding mechanism, and the top of the auxiliary block is provided with a ring, and the diameter of the ring at the top of the auxiliary block is larger than its bottom diameter.

[0015] Preferably, the auxiliary block has a locking block fixed inside, and the locking block is set at equal angles with the bolt body as the center.

[0016] Preferably, the inner end of the locking block extends into the interior of the groove to form a locking mechanism, and the groove is opened at an equal angle to the bottom of the bolt body with the bolt body as the center, and the groove and the locking block form a fitting mechanism.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the anti-slip self-tightening hub bearing bolt can avoid slippage and has high stability. The use of the secondary groove can prevent slippage, and the use of the auxiliary block can further prevent slippage, thereby improving the stability of use. The specific details are as follows:

[0018] (1) A secondary groove is provided. After the bolt body strips, a tool can be inserted into the secondary groove. Then, the bolt body can be rotated through the secondary groove, so that the bolt body can avoid stripping and thus avoid disassembly difficulties.

[0019] (2) An auxiliary block is provided, which can be connected to the bolt body, so that the tool can connect to the auxiliary block and then rotate the auxiliary block, so that the auxiliary block can drive the bolt body to rotate, thereby disassembling the bolt body and avoiding stripping and making it impossible to disassemble.

[0020] (3) Anti-loosening blocks are provided. Anti-loosening blocks are provided at the bottom of the nut and are triangular in shape. The anti-loosening blocks can achieve self-tightening, thereby avoiding the loosening of the nut due to vibration and improving the stability of the nut connection.

[0021] (4) A positioning block is provided. The positioning block is provided at the bottom of the bolt body and is triangular in shape at equal angles. This allows the positioning block to limit the position of the wheel hub bearing, thereby enabling the wheel hub bearing to be stably connected to the bolt body.

[0022] (5) provided with the card block, through the inner end of the card block into the recess inside the structure constitutes a card mechanism, and the recess with bolt body as the center of equal angle opening in the bottom of the bolt body, and the recess and the card block between the structure constitutes a mechanism, and then the card block and the recess between the connection can improve the stability of the bolt body and auxiliary block connection. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the front view structural schematic diagram of the utility model;

[0024] Figure 2 It is the nut moves after the structural schematic diagram of the utility model;

[0025] Figure 3 It is the bolt body and the positioning block connection structural schematic diagram of the utility model;

[0026] Figure 4 It is the bolt body and the auxiliary block separation after the structural schematic diagram of the utility model;

[0027] Figure 5 It is the bolt body and the auxiliary groove connection structural schematic diagram of the utility model;

[0028] Figure 6 It is the card block and the auxiliary block connection structural schematic diagram of the utility model.

[0029] In the drawing: 1, bolt body;2, thread;3, nut;4, anti-loosening block;5, positioning block;6, auxiliary groove;7, recess;8, card block;9, auxiliary block. DETAILED DESCRIPTION

[0030] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0031] Embodiment one: a self-tightening wheel hub bearing bolt to prevent slipping teeth solves the problem that the existing cross-shaped slot is arranged in a cross shape, which causes the stress point of the cross-shaped slot to be relatively concentrated, thereby causing the cross-shaped slot to be stressed too much, so that the cross-shaped slot is easily damaged, thereby causing the problem of slipping teeth. The use of auxiliary groove 6 can avoid the generation of slipping teeth, and the utility model discloses:

[0032] The bottom of the bolt body 1 is provided with a thread 2;The thread 2 is connected with the nut 3;The bottom of the bolt body 1 is provided with an auxiliary groove 6, and the auxiliary groove 6 is located at the center position of the bottom of the bolt body 1, and the auxiliary groove 6 is arranged in an octagonal shape;

[0033] Reference Figures 1 to 5 , the bolt body 1 is passed through the hub bearing, and then the nut 3 is screwed into the inside of the bolt body 1, thereby achieving the effect of fixation, and when the bolt body 1 slips, the tool is replaced and inserted into the inside of the secondary groove 6, and because the secondary groove 6 contains the split teeth, the pressure of the tool is reduced through the split teeth on the secondary groove 6, so that the pressure can be uniformly stressed, thereby prolonging the service life of the secondary groove 6, and by rotating the secondary groove 6, the bolt body 1 can be driven to rotate, so that the bolt body 1 can be separated from the inside of the nut 3, thereby avoiding the purpose of being difficult to disassemble caused by slipping teeth.

[0034] Embodiment two: a self-tightening hub bearing bolt for preventing slipping teeth solves the problem that the existing nut 3 may be loose due to vibration and connected with the bolt body 1, thereby causing unstable connection, and the stability of the nut 3 can be improved by using the anti-loose block 4, and the following is disclosed:

[0035] The bottom of the nut 3 is provided with the anti-loose block 4, and the anti-loose block 4 is triangularly arranged, and the bottom of the bolt body 1 is provided with the positioning block 5, and the positioning block 5 is arranged in an equiangular triangular shape;

[0036] Reference Figures 1 to 4 The nut 3 can be connected with the bolt body 1 through the thread 2, and the anti-loose block 4 can be attached to the hub bearing, thereby enabling the anti-loose block 4 to limit the nut 3, thereby avoiding the purpose of loosening of the nut 3 caused by vibration, and the use of the positioning block 5 enables the positioning block 5 to be engaged with the inside of the hub bearing, thereby further improving the positioning block 5, thereby avoiding loosening of the positioning block 5 caused by vibration, thereby improving the stability of the connection.

[0037] Embodiment three: a self-tightening hub bearing bolt for preventing slipping teeth solves the problem that the secondary groove 6 in embodiment one is not convenient for disassembling the bolt body 1 after slipping, and the bolt body 1 can be disassembled by using the auxiliary block 9, and the following is disclosed:

[0038] The bottom of the bolt body 1 is slidably connected with the auxiliary block 9, and the auxiliary block 9 is hexagonally arranged, the inner wall of the auxiliary block 9 and the outer wall of the bottom of the bolt body 1 form a fitting sliding mechanism, the top of the auxiliary block 9 is provided with a circular ring, and the diameter of the circular ring at the top of the auxiliary block 9 is greater than the diameter at the bottom thereof, the inside of the auxiliary block 9 is fixedly provided with the clamping block 8, and the clamping block 8 is arranged at an equal angle with the bolt body 1 as the center, the inner end of the clamping block 8 extends into the inside of the groove 7 to form a clamping mechanism, and the groove 7 is arranged at an equal angle with the bolt body 1 as the center at the bottom of the bolt body 1, and the groove 7 and the clamping block 8 form a fitting mechanism therebetween;

[0039] Reference Figures 1 to 6In the case that the bolt body 1 and the secondary groove 6 are smooth, the auxiliary block 9 is taken out, the auxiliary block 9 is attached to the bottom of the bolt body 1, then the clamping block 8 is extended into the inside of the recess 7 to form clamping, so as to achieve the purpose of fitting, then the wrench is used to twist the auxiliary block 9, then the auxiliary block 9 can drive the bolt body 1 to rotate through the connection of the recess 7 and the clamping block 8, so that the rotation of the bolt body 1 can be separated from the connection of the nut 3, after the disassembly is completed, the auxiliary block 9 is pulled, then the auxiliary block 9 can be separated from the connection of the bolt body 1, and the clamping block 8 is also separated from the recess 7, so that the auxiliary block 9 can be stored, so as to rotate the bolt body 1 through the auxiliary block 9 subsequently, then the purpose of avoiding difficult disassembly caused by the smooth bolt body 1 is achieved.

[0040] Working principle: when the self-tightening wheel hub bearing bolt is used, first, referring to Figures 1 to 5 the bolt body 1 is inserted into the wheel hub bearing, then the nut 3 is screwed into the inside of the bolt body 1, when the bolt body 1 is smooth, the tool is replaced and inserted into the inside of the secondary groove 6, since the secondary groove 6 contains the teeth, the pressure of the tool is reduced through the teeth on the secondary groove 6, the secondary groove 6 is twisted, then the bolt body 1 is driven to rotate, so that the purpose of avoiding difficult disassembly caused by the smooth bolt body 1 is achieved;

[0041] Referring to Figures 1 to 4 the nut 3 is connected with the bolt body 1 through the thread 2, the anti-loose block 4 is attached to the wheel hub bearing, then the anti-loose block 4 can limit the nut 3, and the positioning block 5 is used, so that the positioning block 5 is engaged with the inside of the wheel hub bearing, so that the positioning block 5 is further improved, thereby improving the stability of the connection;

[0042] Referring to Figures 1 to 6 in the case that the bolt body 1 and the secondary groove 6 are smooth, the auxiliary block 9 is attached to the bottom of the bolt body 1, then the clamping block 8 is extended into the inside of the recess 7 to form clamping, then the wrench is used to twist the auxiliary block 9, then the auxiliary block 9 can drive the bolt body 1 to rotate through the connection of the recess 7 and the clamping block 8, after the disassembly is completed, the auxiliary block 9 is pulled, then the auxiliary block 9 can be separated from the connection of the bolt body 1, and the clamping block 8 is also separated from the recess 7, so that the auxiliary block 9 can be stored, so as to rotate the bolt body 1 through the auxiliary block 9 subsequently, then the purpose of avoiding difficult disassembly caused by the smooth bolt body 1 is achieved.

[0043] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0044] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A self-tightening wheel hub bearing bolt for preventing tooth slipping, comprising a bolt body (1), the bottom of the bolt body (1) being provided with a thread (2); characterized in that a nut (3) is connected on the thread (2); a sub-groove (6) is formed in the bottom of the bolt body (1), the sub-groove (6) is located at the center of the bottom of the bolt body (1), and the sub-groove (6) is octagonal.

2. A self-tightening hub bearing bolt for preventing wheel skid according to claim 1, wherein: The bottom of the nut (3) is provided with an anti-loosening block (4), and the anti-loosening block (4) is triangular.

3. A self-tightening hub bearing bolt for preventing wheel slide according to claim 1, wherein: The bottom of the bolt body (1) is provided with a positioning block (5), and the positioning block (5) is equiangular triangular.

4. A self-tightening hub bearing bolt for preventing wheel slide according to claim 1, wherein: The bottom of the bolt body (1) is slidably connected with an auxiliary block (9), and the auxiliary block (9) is hexagonal.

5. A self-tightening hub bearing bolt for preventing wheel skid according to claim 4, wherein: The inner wall of the auxiliary block (9) and the outer wall of the bottom of the bolt body (1) constitute a fitting sliding mechanism, the top of the auxiliary block (9) is provided with a circular ring, and the diameter of the circular ring at the top of the auxiliary block (9) is greater than the diameter of the bottom.

6. A self-tightening hub bearing bolt for preventing wheel slide according to claim 5, wherein: The inside of the auxiliary block (9) is fixed with a clamping block (8), and the clamping block (8) is equiangularly arranged with the bolt body (1) as the center.

7. A self-tightening hub bearing bolt for preventing wheel skid according to claim 6, wherein: The inner end of the clamping block (8) extends into the inside of the groove (7) to form a clamping mechanism, the groove (7) is equiangularly formed in the bottom of the bolt body (1) with the bolt body (1) as the center, and the groove (7) and the clamping block (8) constitute a fitting mechanism.

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