Anti-loosening high-reliability vehicle fastener

Abstract

The utility model relates to the technical field of automobile parts, in particular to an anti-loosening high-reliability vehicle fastener which comprises a flange plate, a plurality of screw rod bodies are arranged at the upper end of the flange plate, a circular groove is formed in each screw rod body, an anti-loosening structure is arranged in each circular groove, and each anti-loosening structure comprises a one-way bearing. The stepped shaft and the disc are arranged in the screw rod body, and the second clamping pin groove is formed in the nut body, so that when a worker installs a flange plate, a cylindrical clamping pin needs to be additionally clamped between the first clamping pin groove of the disc and the second clamping pin groove of the nut body, and therefore the screw rod body and the nut body can be fixed; the characteristics of the one-way bearing are fully utilized, double fixation can be completed, meanwhile, even if the nut body and the thread body vibrate and slightly rotate, the nut body can only be rotationally fixed in the direction of one side of the hub mounting hole groove, then the anti-loosening effect can be achieved, and reliability and practicability are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, especially relates to a high-reliability anti-loose vehicle fastener. BACKGROUND

[0002] Vehicle fasteners are mainly used to stably connect various components of vehicles, ensuring that the vehicles have complete and stable structures. Common vehicle fasteners include bolts, nuts, screws, rivets, flanges and other forms. In actual application of automobiles, vehicle fasteners usually need to have the following characteristics:

[0003] Precise size specifications ensure perfect fit with corresponding mounting holes. For example, nuts should be able to tightly cooperate with bolts without problems such as slippage.

[0004] Good corrosion resistance. Since the driving environment of vehicles is complex and changeable, fasteners need to resist the corrosion of factors such as moisture and acid and alkali. For example, flanges use special corrosion-resistant coatings or materials.

[0005] Standardized design for easy installation and replacement during vehicle production, maintenance, etc. Screws have uniform standard specifications.

[0006] During installation, the bolt holes on the hub, brake disc and axle are accurately matched. The bolt needs to pass through these holes and be fastened with the nut of the flange to ensure the tight connection of the hub and the axle and maintain the normal operation of the vehicle.

[0007] Currently, the existing device (such as announcement number: CN214564343U) discloses an automobile hub flange. The device limits and fixes the hub flange on the axle through a limiting clamp to avoid the position of the hub flange from shifting during assembly, which is convenient for operators to assemble the hub flange and helps to improve assembly efficiency and connection stability. The anti-slip gasket at the bottom of the flange body contacts and abuts against the surface of the axle, which helps to improve the connection tightness between the hub flange and the axle.

[0008] However, during the implementation of the above technical solution, it was found that at least the following technical problems exist: Due to complex road conditions during driving, the nut between the automobile hub and the flange is prone to loosening due to frequent friction after long-term use, which affects the stability of the automobile hub installation. The flange lacks a structure for preventing the nut from loosening during use, so its stability is insufficient and its practicality needs to be improved. INVENTION CONTENTS

[0009] (I) Technical problems solved

[0010] The utility model provides a kind of anti-loose high-reliability vehicle fastener, solve the technical problem of insufficient practicality of existing fastener.

[0011] (II) Technical solutions

[0012] To achieve the above object, the utility model is realized by the following technical solutions:

[0013] A kind of anti-loose high-reliability vehicle fastener, including flange, the flange upper end is equipped with multiple screw bodies, each screw body is internally provided with circular groove;

[0014] Each circular groove is internally provided with an anti-loose structure;

[0015] The anti-loose structure includes one-way bearing, each one-way bearing is equipped with outer ring and inner ring, each outer ring is fixedly installed with circular groove inner wall, each inner ring inner side is fixedly installed with stepped shaft, each stepped shaft is slidably installed with circular groove.

[0016] Preferably: the upper end of each stepped shaft is fixedly installed with disc, each disc is exposed to the outside of screw body, each disc is internally provided with first pin slot, the bottom of each first pin slot is provided with a slot.

[0017] Preferably: the circumferential surface of each screw body is provided with threaded body, the circumferential surface of each threaded body is screwedly installed with nut body, the inside of each nut body is provided with second pin slot, and the center point of each second pin slot and the center point of first pin slot are in parallel.

[0018] Preferably: cylindrical pin is clamped between each first pin slot and second pin slot, the upper end of each cylindrical pin is provided with dismounting head, and each dismounting head is exposed to the outside of nut body.

[0019] (III) Beneficial effects

[0020] I. By setting stepped shaft in screw body, disc and second pin slot in nut body, when installing flange, staff needs to additionally clamp cylindrical pin between first pin slot of disc and second pin slot of nut body, so as to fix screw body and nut body, and make full use of the characteristics of one-way bearing, not only can complete double fixation, but also even in the case of vibration and micro-rotation of nut body and threaded body, nut body can only rotate and fix in the direction of hub mounting hole groove side, thereby anti-loose effect can be achieved, reliability and practicality are improved.

[0021] Second, because the staff in the nut body through the screw body surface thread body on the screw body, and the hub installation hole slot wall, the first card slot and the second card slot between the slot may appear non-parallel state, by setting a slot, so that the staff can insert a slot screwdriver rotation, so that the first card slot and the second card slot on the nut body four corners in parallel state, facilitate subsequent clamping installation, improve the convenience. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above description is only a summary of the technical scheme of the present application. In order to more clearly understand the technical means of the present application, and can be implemented in accordance with the content of the specification, the following is a preferred embodiment of the present application and the detailed description of the drawings as follows.

[0023] Figure 1 The present application is a three-dimensional structure diagram;

[0024] Figure 2 The present application is a three-dimensional connection explosion structure diagram;

[0025] Figure 3 The present application is a screw body and disc cross-sectional view;

[0026] Figure 4 The present application is a nut body cross-sectional view;

[0027] Figure 5 The present application is a anti-loose structure cross-sectional view.

[0028] Legend: 11, flange; 12, screw body; 13, round groove; 14, one-way bearing; 15, outer ring; 16, inner ring; 17, stepped shaft; 18, disc; 19, first card slot; 21, a slot; 22, thread body; 23, nut body; 24, second card slot; 25, cylindrical card; 26, disassembly head. DETAILED DESCRIPTION

[0029] The embodiment of the application provides a high-reliability anti-loose vehicle fastener, effectively solves the technical problem of insufficient practicability of the existing fastener, sets a stepped shaft and a disc in the screw rod body, sets a second pin slot in the nut body, so that the staff needs to additionally insert a cylindrical pin between the first pin slot of the disc and the second pin slot of the nut body when installing the flange plate, thereby fixing the screw rod body and the nut body, fully utilizing the characteristics of the one-way bearing, not only achieving double fixation, but also fixing the nut body to the direction of the hub mounting hole slot even when the nut body and the threaded body are slightly rotated due to vibration, thereby achieving the anti-loose effect, improving the reliability and practicability, and since the staff further tightens the nut body on the screw rod body through the threaded body on the surface of the screw rod body and clamps the inner wall of the hub mounting hole slot, the first pin slot and the second pin slot may be in a non-parallel state, the setting of the slot enables the staff to insert a slot screwdriver into the slot for rotation, so that the first pin slot and the four corners of the second pin slot on the nut body are in a parallel state, facilitating subsequent clamping installation and improving convenience.

[0030] Embodiment

[0031] As shown in Figure 1 - Figure 5 The technical scheme in the embodiment of the application effectively solves the technical problem of insufficient practicability of the existing fastener, and the general idea is as follows:

[0032] In view of the problems in the prior art, the utility model provides a high-reliability anti-loose vehicle fastener, including flange plate 11, the upper end of flange plate 11 is equipped with a plurality of screw rod body 12, each screw rod body 12 is internally provided with circular groove 13;

[0033] Each circular groove 13 is internally provided with an anti-loose structure;

[0034] The anti-loose structure comprises a one-way bearing 14, each one-way bearing 14 is provided with an outer ring 15 and an inner ring 16, each outer ring 15 is fixedly installed on the inner wall of the circular groove 13, the inner side of each inner ring 16 is fixedly installed with a stepped shaft 17, each stepped shaft 17 is slidingly installed with the circular groove 13, the stepped shaft 17 and the disc 18 are arranged inside the screw body 12, and the second pin slot 24 is arranged inside the nut body 23, so that when the worker installs the flange plate 11, the cylindrical pin 25 needs to be additionally clamped between the first pin slot 19 of the disc 18 and the second pin slot 24 of the nut body 23, so that the screw body 12 and the nut body 23 can be fixed, and the characteristics of the one-way bearing 14 can be fully utilized, so that not only the double fixing can be completed, but also the nut body 23 can only be rotated and fixed to the direction of the hub mounting hole groove even if the nut body 23 and the threaded body 22 vibrate and rotate slightly, thereby achieving the effect of anti-loose, improving the reliability and practicality.

[0035] The upper end of each stepped shaft 17 is fixedly installed with a disc 18, each disc 18 is exposed outside the screw body 12, a first pin slot 19 is arranged in each disc 18, a one-way slot 21 is arranged at the bottom of each first pin slot 19, a threaded body 22 is arranged on the circumferential surface of each screw body 12, a nut body 23 is threadedly installed on the circumferential surface of each threaded body 22, a second pin slot 24 is arranged inside each nut body 23, and the center point of each second pin slot 24 is in parallel with the center point of the first pin slot 19. When the worker tightens the nut body 23 on the screw body 12 through the threaded body 22 on the surface of the screw body 12 and clamps the inner wall of the hub mounting hole groove, the first pin slot 19 and the second pin slot 24 may not be parallel. By arranging the one-way slot 21, the worker can insert a one-way screwdriver into the one-way slot 21 for rotation, so that the four corners of the first pin slot 19 and the second pin slot 24 on the nut body 23 are in parallel, facilitating subsequent clamping installation and improving convenience.

[0036] Each first pin slot 19 and second pin slot 24 is clamped with a cylindrical pin 25, the upper end of each cylindrical pin 25 is provided with a dismounting head 26, and each dismounting head 26 is exposed outside the nut body 23. By arranging the dismounting head 26 on the cylindrical pin 25 and exposing it outside the nut body 23, the worker can also conveniently take out the cylindrical pin 25 when dismounting the flange plate 11, thereby improving the practicality.

[0037] Working principle:

[0038] The first step, the installation starting stage, the worker puts the flange plate 11 accurately on the screw rod of the original vehicle brake disc, then uses the nut to firmly sleeve the flange plate 11 on the original vehicle screw rod and tightens, then, the hub mounting hole groove is accurately placed on the screw rod body 12, then the nut body 23 is taken alone, and the nut body 23 is screwed into the screw rod body 12 along the thread body 22 on the surface of the screw rod body 12, clamped in the inner wall of the hub mounting hole groove, then the nut body 23 is fixed by using the air gun, so that the position of the nut body 23 is stable, then the worker takes a slot screwdriver, inserts into the first locking slot 19 through the second locking slot 24 inside, and then inserts into the slot 21 to rotate, in the process, the disc 18 drives the stepped shaft 17 to rotate in the inner ring 16 of the one-way bearing 14 as a whole, until the four edges of the first locking slot 19 and the second locking slot 24 on the nut body 23 are parallel, finally, the worker inserts the cylindrical locking pin 25 between the first locking slot 19 and the second locking slot 24, thereby completing the installation.

[0039] The second step, when the nut body 23 and the thread body 22 vibrate, the vibration force generated at this time is easy to cause the nut body 23 to wear the thread body 22 and loosen, thereby causing the nut body 23 to relax and shake, by setting the one-way bearing 14 (the one-way bearing 14 is a special bearing, the inner ring 16 of which can rotate freely in one direction and is locked in the other direction), so that the nut body 23 can limit the rotating direction of the nut body 23 on the thread body 22 when shaking, thereby making the nut body 23 always fit the inner wall of the hub mounting hole groove.

[0040] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the utility model, and are not limited to the implementation mode. For ordinary skilled persons in the art, other different forms of changes or changes can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the implementation modes. The obvious changes or changes derived therefrom are still within the protection scope of the utility model.

Claims

1. A high-reliability anti-loose fastener for vehicles, comprising a flange (11) provided at the upper end with a plurality of screw bodies (12), characterized in that, Each screw body (12) is internally provided with a circular groove (13); Each circular groove (13) is internally provided with an anti-loose structure; The anti-loose structure comprises a one-way bearing (14), each one-way bearing (14) is provided with an outer ring (15) and an inner ring (16), each outer ring (15) is fixedly installed with the inner wall of the circular groove (13), the inner side of each inner ring (16) is fixedly installed with a stepped shaft (17), and each stepped shaft (17) is slidingly installed with the circular groove (13).

2. A high-reliability anti-loose fastener for vehicles, as claimed in claim 1, wherein The upper end of each stepped shaft (17) is fixedly installed with a disc (18); Each disc (18) is exposed outside the screw body (12).

3. A high-reliability anti-loose fastener for vehicles, as claimed in claim 2, wherein Each disc (18) is internally provided with a first pin slot (19); The bottom of each first pin slot (19) is provided with a one-way slot (21).

4. A high-reliability anti-loose fastener for vehicles, as claimed in claim 3, wherein The circumferential surface of each screw body (12) is provided with a threaded body (22); The circumferential surface of each threaded body (22) is threadedly installed with a nut body (23).

5. A high-reliability anti-loose fastener for vehicles, as claimed in claim 4, wherein Each nut body (23) is internally provided with a second pin slot (24); The center point of each second pin slot (24) is in parallel with the center point of the first pin slot (19).

6. A high-reliability anti-loose fastener for vehicles, as claimed in claim 5, wherein Each first pin slot (19) and second pin slot (24) is clamped with a cylindrical pin (25); The upper end of each cylindrical pin (25) is provided with a dismounting head (26), and each dismounting head (26) is exposed outside the nut body (23).

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