Anti-loose fastener for automobile

Abstract

The utility model discloses an automobile anti-loosing fastener, which comprises a bolt body and a double-end nut, the double-end nut is in threaded connection with the bolt body, the bolt body comprises an operation part and a threaded connection part, the side wall of the operation part is provided with a groove, the double-end nut comprises a first nut and a second nut, and the first nut and the second nut are in threaded connection with each other. The first threaded hole and the second threaded hole are in threaded connection with the threaded connecting part in a matched mode, the double-end nut is rotated to extrude a workpiece so that the workpiece can be tightly pressed on the side wall of the gasket, the double-end nut is limited through the inclined face of the abutting block, the double-end nut is prevented from being disengaged from the bolt body after loosening, the anti-loosening effect is good, and the anti-loosening effect is good. Through the arrangement of the first nut, the second nut and the connecting part, even if one nut loose tooth of the double-end nut is loosened, the other nut can play a locking role, the distance between the first nut and the second nut can be adjusted through the connecting part, and the overall length of the double-end nut can be adjusted in time so that the double-end nut can be matched with a clamping mechanism for limiting and clamping.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, and in particular to an anti-loosening fastener for automobiles. Background Technology

[0002] Fasteners are a type of mechanical part used for fastening connections and are widely used. They are a general term for mechanical parts used to fasten two or more parts together to form a whole.

[0003] During use, the operator needs to first pass the screw through the workpiece to fix it, and then put the nut on the screw to lock and fix the workpiece. However, after the existing fastener is locked to the workpiece, the workpiece is subjected to a large force during use, which can easily cause the threads of the fastener to strip or break at the part that is in contact with it. The fastener and the workpiece will be relatively displaced, which will cause the workpiece connection to loosen and lose the locking and fixing effect.

[0004] Therefore, it is necessary to provide an anti-loosening fastener for automobiles to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide an anti-loosening fastener for automobiles to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-loosening fastener for automobiles, comprising a bolt body and a double-ended nut, wherein the double-ended nut is threadedly connected to the bolt body, the bolt body includes an operating part and a threaded connection part, the operating part has a groove on its side wall, the double-ended nut includes a first nut and a second nut, a connecting part is provided between the first nut and the second nut, four mounting grooves are evenly provided on the outer circumference of the threaded connection part, each mounting groove is provided with a clamping mechanism, the clamping mechanism includes a fixing block, the fixing block is provided at the bottom of the mounting groove, the top of the fixing block has a receiving groove and a first placement groove, the first placement groove is located on one side of the receiving groove, the side wall of the first placement groove has a rotating hole, an abutment block is rotatably provided in the rotating hole, one end of the abutment block has an insertion hole, a rotating shaft is inserted into the insertion hole, both ends of the rotating shaft are rotatably provided in the rotating hole, a spring is provided between the bottom of the receiving groove and the bottom of the abutment block.

[0007] As a preferred embodiment of this utility model, the depth of the first placement groove is less than the depth of the receiving groove, the bottom of the receiving groove is provided with a second placement groove, the bottom of the abutting block is provided with a third placement groove, the third placement groove is opened directly opposite the second placement groove, and the spring is located between the bottom of the third placement groove and the bottom of the second placement groove.

[0008] As a preferred embodiment of this utility model, the contact point between the contact block and the first placement groove is provided with a rounded corner.

[0009] As a preferred embodiment of this utility model, the side wall of the contact block is provided with an inclined surface.

[0010] As a preferred technical solution of this utility model, the connecting part is an elastic connecting member, the first nut has a first threaded hole in the middle, the second nut has a second threaded hole in the middle, and the first threaded hole and the second threaded hole are both threadedly connected to the threaded connecting part.

[0011] As a preferred embodiment of this utility model, a washer is fitted on the outer circumferential surface of the threaded connection portion of the bolt body.

[0012] As a preferred embodiment of this utility model, the operating part has a regular hexagonal structure.

[0013] As a preferred embodiment of this utility model, the groove structure is a regular hexagon.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model discloses an anti-loosening fastener for automobiles. The threaded connection of the bolt body passes through the workpiece to be locked, bringing the workpiece close to the washer. A double-ended nut is screwed onto the threaded connection at the other end of the workpiece. The double-ended nut is threaded through a first and second threaded hole, engaging with the threaded connection. Rotating the double-ended nut compresses the workpiece, pressing it tightly against the side wall of the washer. During the rotation of the double-ended nut, an abutment block is compressed, rotating and penetrating into the receiving groove, thus compressing the spring. When the double-ended nut is completely disengaged from the locking mechanism, the abutment block returns to its original position under the spring force, extending out of the receiving groove. The inclined surface of the abutment block limits the double-ended nut, preventing it from loosening and detaching from the bolt body, thus preventing workpiece loosening. The anti-loosening effect is good. Through the design of the first nut, second nut, and connecting part, even if one of the double-ended nuts strips and loosens, the other nut can still lock it in place. The connecting part allows for adjustment of the distance between the first and second nuts, enabling timely adjustment of the overall length of the double-ended nut for locking and limiting with the locking mechanism. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a three-dimensional exploded view of the overall structure of this utility model;

[0019] Figure 3 This is a three-dimensional schematic diagram of the double-headed nut structure of this utility model;

[0020] Figure 4 This is a three-dimensional schematic diagram of the clamping mechanism structure of this utility model;

[0021] Figure 5 This is a three-dimensional schematic diagram of the fixing block structure of this utility model;

[0022] Figure 6 This is a three-dimensional schematic diagram of the abutment block structure of this utility model.

[0023] In the diagram: 1. Bolt body; 101. Operating part; 1011. Groove; 102. Threaded connection part; 1021. Mounting groove; 2. Double-ended nut; 21. First nut; 211. First threaded hole; 221. Second threaded hole; 22. Second nut; 23. Connecting part; 3. Clamping mechanism; 31. Fixing block; 311. Receiving groove; 312. First placement groove; 313. Rotating hole; 314. Second placement groove; 32. Abutting block; 321. Insertion hole; 322. Third placement groove; 323. Rounded corner; 324. Inclined surface; 33. Rotating shaft; 34. Spring. Detailed Implementation

[0024] The embodiments of this utility model will now be described with reference to the accompanying drawings. In this process, to ensure clarity and convenience, we may exaggerate the width of lines or the size of constituent elements in the drawings.

[0025] Furthermore, the terms used below are defined based on the functions of this utility model and may vary depending on the user's or operator's intent or convention. Therefore, these terms are defined based on the entire contents of this specification.

[0026] like Figures 1 to 6As shown, an anti-loosening fastener for automobiles includes a bolt body 1 and a double-ended nut 2. The bolt body 1 includes an operating part 101 and a threaded connection part 102. The operating part 101 has a regular hexagonal structure to facilitate rotation of the entire bolt body 1. A groove 1011 with a regular hexagonal structure is provided on the side wall of the operating part 101 to facilitate the operation of the bolt body 1 with matching tools. The double-ended nut 2 includes a first nut 21 and a second nut 22. A connecting portion 23 is provided between the second nuts 22. The connecting portion 23 is an elastic connector. The first nut 21 has a first threaded hole 211 in the middle. The second nut 22 has a second threaded hole 221 in the middle. The double-ended nut 2 is threaded onto the bolt body 1. The first threaded hole 211 and the second threaded hole 221 are both threaded onto the threaded connecting portion 102. Four mounting grooves 1021 are evenly provided on the outer circumferential surface of the threaded connecting portion 102. Each mounting groove 1021 is provided with a clamping mechanism 3.

[0027] like Figures 4 to 6 As shown, the clamping mechanism 3 includes a fixing block 31, which is disposed at the bottom of the mounting groove 1021. The top of the fixing block 31 has a receiving groove 311 and a first placement groove 312. The first placement groove 312 is located on one side of the receiving groove 311, and its depth is less than the depth of the receiving groove 311. The bottom of the receiving groove 311 has a second placement groove 314. The side wall of the first placement groove 312 has a rotating hole 313, and an abutment block 32 is rotatably disposed within the rotating hole 313. One end of the abutment block 32 has an insertion hole. 321, a rotating shaft 33 is inserted into the insertion hole 321, and the two ends of the rotating shaft 33 are rotatably disposed in the rotating hole 313. A third placement groove 322 is provided at the bottom of the abutment block 32, and the third placement groove 322 is opened directly opposite the second placement groove 314. A spring 34 is provided between the bottom of the second placement groove 314 and the bottom of the third placement groove 322. A rounded corner 323 is provided at the contact point between the abutment block 32 and the first placement groove 312. An inclined surface 324 is provided on the side wall of the abutment block 32, and the inclined surface 324 abuts and engages with the side wall of the double-headed nut 2 for limiting.

[0028] like Figure 1 As shown, a washer is fitted on the outer circumferential surface of the threaded connection portion 102 of the bolt body 1. The threaded connection portion 102 passes through the workpiece to be locked, so that the side wall of the workpiece fits against the washer. The double-ended nut 2 is tightened so that its side wall fits against the workpiece. At the same time, the side wall of the double-ended nut 2 fits against the inclined surface 324 of the abutment block 32 and is locked and limited.

[0029] Specifically, the threaded connection portion 102 of the bolt body 1 is passed through the workpiece to be locked, bringing the workpiece close to the washer. A double-ended nut 2 is screwed onto the threaded connection portion 102 at the other end of the workpiece. The double-ended nut 2 is threaded through the first threaded hole 211 and the second threaded hole 221, engaging with the threaded connection portion 102. Rotating the double-ended nut 2 compresses the workpiece, pressing it tightly against the side wall of the washer. During the rotation of the double-ended nut 2, the abutment block 32 is compressed. The abutment block 32 rotates under pressure and extends into the receiving groove 311, thereby compressing the spring 34. When the double-ended nut 2 is completely disengaged from the locking mechanism 3, the abutment block 32... 2. Under the elastic force of spring 34, it returns to its original position and extends out of the receiving groove 311. The inclined surface 324 of the contact block 32 limits the double-ended nut 2, preventing it from loosening and detaching from the bolt body 1, thus preventing the workpiece from loosening. It has a good anti-loosening effect. With the setting of the first nut 21, the second nut 22 and the connecting part 23, even if one of the nuts of the double-ended nut 2 slips and loosens, the other nut can still play a locking role. The connecting part 23 can realize the distance between the first nut 21 and the second nut 22, and can adjust the overall length of the double-ended nut 2 in time so as to cooperate with the clamping mechanism 3 for limiting and clamping.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An anti-loosening fastener for automobiles, comprising a bolt body (1) and a double-ended nut (2), wherein the double-ended nut (2) is threaded onto the bolt body (1), characterized in that: The bolt body (1) includes an operating part (101) and a threaded connection part (102). The operating part (101) has a groove (1011) on its side wall. The double-ended nut (2) includes a first nut (21) and a second nut (22). A connecting part (23) is provided between the first nut (21) and the second nut (22). Four mounting grooves (1021) are evenly provided on the outer circumference of the threaded connection part (102). Each mounting groove (1021) is provided with a clamping mechanism (3). The clamping mechanism (3) includes a fixing block (31). The fixing block (31) is provided in the mounting groove (102). 1) At the bottom, the top of the fixing block (31) is provided with a receiving groove (311) and a first placement groove (312). The first placement groove (312) is located on one side of the receiving groove (311). A rotating hole (313) is provided on the side wall of the first placement groove (312). An abutment block (32) is rotatably arranged in the rotating hole (313). An insertion hole (321) is provided at one end of the abutment block (32). A rotating shaft (33) is inserted into the insertion hole (321). Both ends of the rotating shaft (33) are rotatably arranged in the rotating hole (313). A spring (34) is provided between the bottom of the receiving groove (311) and the bottom of the abutment block (32).

2. The automotive anti-loosening fastener according to claim 1, characterized in that: The depth of the first placement groove (312) is less than the depth of the receiving groove (311). The bottom of the receiving groove (311) is provided with a second placement groove (314). The bottom of the abutment block (32) is provided with a third placement groove (322). The third placement groove (322) is opened directly opposite the second placement groove (314). The spring (34) is located between the bottom of the third placement groove (322) and the bottom of the second placement groove (314).

3. The automotive anti-loosening fastener according to claim 1, characterized in that: The contact point between the contact block (32) and the first placement groove (312) is provided with a rounded corner (323).

4. The automotive anti-loosening fastener according to claim 1, characterized in that: The side wall of the abutment block (32) is provided with an inclined surface (324).

5. The automotive anti-loosening fastener according to claim 1, characterized in that: The connecting part (23) is an elastic connector. The first nut (21) has a first threaded hole (211) in the middle, and the second nut (22) has a second threaded hole (221) in the middle. The first threaded hole (211) and the second threaded hole (221) are both threadedly connected to the threaded connecting part (102).

6. The automotive anti-loosening fastener according to claim 1, characterized in that: A gasket is fitted on the outer circumferential surface of the threaded connection part (102) of the bolt body (1).

7. The automotive anti-loosening fastener according to claim 1, characterized in that: The operating part (101) has a regular hexagonal structure.

8. The automotive anti-loosening fastener according to claim 1, characterized in that: The groove (1011) has a regular hexagonal structure.

Images