阅读说明：本技术 一种适用于汽车的紧固件 (Fastener suitable for car ) 是由 陈均 于 2020-12-31 设计创作，主要内容包括：一种适用于汽车的紧固件,其包括螺栓,螺钉,以及防松组件。所述螺栓包括杆体,螺纹,法兰盘,以及螺帽。所述杆体设有螺纹孔,以及滑动槽。所述防松组件包括滑块,弹性件,以及防滑层。每一个所述滑块包括本体,圆弧段,以及抵顶螺纹。通过所述螺钉使两个所述滑块分离,使所述抵顶螺纹伸出所述滑动槽,而所述抵顶螺纹的螺旋方向与所述螺纹的螺旋方向相反,因此抵顶螺纹与锁紧件的螺纹孔内的内螺纹相互不契合,从而使所述抵顶螺纹卡住被锁紧件的螺纹孔内的内螺纹,使所述螺杆无法转动,达到防止松动的目。同时所述螺钉被两个所述滑块通过所述弹性件的弹力作用所夹住,从而进一步固定所述螺钉,防止所述螺钉松动。(A fastener suitable for use in an automobile includes a bolt, a screw, and a check assembly. The bolt comprises a rod body, threads, a flange plate and a nut. The body of rod is equipped with the screw hole to and the sliding tray. The anti-loosening assembly comprises a sliding block, an elastic piece and an anti-skidding layer. Each sliding block comprises a body, an arc section and a propping thread. The two sliding blocks are separated through the screw, so that the abutting threads extend out of the sliding grooves, the spiral direction of the abutting threads is opposite to the spiral direction of the threads, and therefore the abutting threads are not matched with the internal threads in the threaded hole of the locking piece, the abutting threads are clamped by the internal threads in the threaded hole of the locking piece, the screw cannot rotate, and the purpose of preventing looseness is achieved. Meanwhile, the screw is clamped by the two sliding blocks through the elastic force of the elastic piece, so that the screw is further fixed, and the screw is prevented from loosening.)

1. A fastener suitable for use in an automotive vehicle, characterized by: the anti-loosening bolt suitable for the automobile comprises a bolt, a screw and a anti-loosening assembly, wherein the screw is arranged in the screw, the anti-loosening assembly is arranged in the screw, the bolt comprises a rod body, a thread is spirally arranged on the outer side wall of the rod body, the rod body is provided with a threaded hole arranged on the rod body, and a sliding groove which is arranged on the outer side wall of the rod body and penetrates through two sides of the rod body, one end of the threaded hole penetrates through the plane where the sliding groove is arranged and is communicated with the sliding groove, the central shaft of the threaded hole is coincided with the central shaft of the rod body, the central shaft of the sliding groove is perpendicular to the central shaft of the rod body, the screw is arranged in the threaded hole and penetrates through the sliding groove, the anti-loosening assembly comprises two sliding blocks which are oppositely arranged in the sliding groove, and two elastic pieces of which two ends are, the anti-skid layer comprises a body arranged in the sliding groove in a sliding mode, an arc section arranged at one end of the sliding groove and a butting thread arranged at the other end of the sliding groove, the arc section is arranged at one end of the body and is attached to the side wall of the screw, the arc section is located between the body and the screw, the butting thread extends out of the sliding groove and is parallel to the screw thread, the spiral direction of the butting thread is opposite to the spiral direction of the screw thread, two ends of the elastic piece are connected with one end of the body respectively, the elastic piece is located on two sides of the arc section, and the anti-skid layer is arranged on the butting thread.

2. A fastener adapted for use in an automotive vehicle according to claim 1, wherein: the bolt also comprises a flange plate connected with one end of the rod body and a nut arranged on the flange plate.

3. A fastener adapted for use in an automotive vehicle according to claim 2, wherein: the top end of the nut is provided with a groove.

4. A fastener adapted for use in an automotive vehicle according to claim 1, wherein: and the threaded hole is internally provided with an internal thread matched with the screw.

5. A fastener adapted for use in an automotive vehicle according to claim 1, wherein: the width of the arc section is smaller than that of the body.

6. A fastener adapted for use in an automotive vehicle according to claim 1, wherein: the anti-slip layer is a rubber layer or grains.

Technical Field

The invention relates to the technical field of automobile fasteners, in particular to a fastener suitable for automobiles.

Background

Fasteners are a very widely used class of mechanical parts for fastening connections. The fastener using industries widely comprise energy, electronics, electrical appliances, machinery, chemical industry, metallurgy, molds, hydraulic pressure and other industries, and various fasteners can be seen on various machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemical industry, instruments, supplies and the like, and are the most widely applied mechanical basic parts.

Wherein, in the automobile manufacturing process, need use a large amount of fasteners, current fastener adopts the screw thread of unidirectional direction to realize connecting mostly, but because the phenomenon of vibration can appear at the in-process that uses to the car, when the car goes on the road surface of jolting, the automobile body of continuous vibration can bring pressure for the fastener, probably can make the fastener derotation under the influence of long-time vibrations, thereby cause the fastener not hard up, serious probably causes the fastener to drop, stability is relatively poor, the security of car has been reduced, make the car have the potential safety hazard.

Disclosure of Invention

In view of the above, the present invention provides a fastener suitable for an automobile to solve the above technical problems.

A fastener suitable for an automobile comprises a bolt, a screw arranged in a screw rod and a locking assembly arranged in the screw rod. The bolt comprises a rod body and a thread spirally arranged on the outer side wall of the rod body. The body of rod is equipped with one and sets up threaded hole on the body of rod to and one setting is in on the lateral wall of the body of rod and link up the sliding tray of body of rod both sides. One end of the threaded hole penetrates through the plane where the sliding groove is located and is communicated with the sliding groove, and the central axis of the threaded hole is overlapped with the central axis of the rod body. The central axis of the sliding groove is perpendicular to the central axis of the rod body, and the screw is arranged in the threaded hole and penetrates through the sliding groove. The anti-loosening assembly comprises two sliding blocks which are oppositely arranged in the sliding grooves, two elastic pieces of which two ends are respectively connected with the two sliding grooves, and two anti-slip layers which are respectively arranged on the two sliding blocks. Each sliding block comprises a body which is arranged in the sliding groove in a sliding mode, an arc section which is arranged at one end of the sliding groove, and a butting thread which is arranged at the other end of the sliding groove. The arc section sets up the one end of body and with the lateral wall laminating of screw, the arc section is located the body with between the screw. The abutting threads extend out of the sliding groove and are flush with the threads, and the spiral direction of the abutting threads is opposite to that of the threads. The two ends of the elastic piece are respectively connected with one end of each of the two bodies, the elastic piece is located on the two sides of the arc section, and the anti-skid layer is arranged on the abutting threads.

Furthermore, the bolt also comprises a flange plate connected with one end of the rod body and a nut arranged on the flange plate.

Further, a groove is formed in the top end of the nut.

Furthermore, an internal thread matched with the screw is arranged in the threaded hole.

Further, the width of the circular arc section is smaller than that of the body.

Further, the anti-slip layer is a rubber layer or a texture.

Compared with the prior art, the fastener suitable for the automobile provided by the invention has a good anti-loosening effect on the bolt by arranging the anti-loosening assembly. Through setting up the screw makes two of locking subassembly the slider separation makes support the screw thread and stretch out the sliding tray, and support the screw direction of screw thread with the screw direction of screw thread is opposite, consequently supports the screw thread and does not agree with each other with the internal thread in the screwed hole of retaining member, thereby makes support the screw thread and block the internal thread in the screwed hole of being locked, make the unable rotation of screw rod also can't the derotation, reaches the mesh that prevents to become flexible. Meanwhile, the screw is clamped by the two sliding blocks through the elastic force of the elastic piece, so that the screw is further fixed, and the screw is prevented from loosening. In addition, the whole assembling and disassembling process is simple, the assembly is convenient, and any one damaged component can be replaced.

Drawings

Fig. 1 is a schematic cross-sectional structural view of a fastener suitable for an automobile according to the present invention.

Fig. 2 is a schematic cross-sectional view of the fastener retainer assembly for an automobile of fig. 1, shown unseparated.

FIG. 3 is a top view of the check assembly of the fastener of FIG. 1 adapted for use in an automobile.

Detailed Description

Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

Fig. 1 to fig. 3 are schematic structural views of a fastener suitable for an automobile according to the present invention. The fastener for the automobile comprises a bolt 10, a screw 20 arranged in the screw 10, and a locking assembly 30 arranged in the screw 10. It is contemplated that the automotive fastener may include other functional features, such as internal and external threads, internal and external chamfers, etc., as is known to those skilled in the art and will not be described further herein.

The bolt 10 includes a shaft 11, a thread 12 spirally formed on an outer side wall of the shaft 11, a flange 13 connected to one end of the shaft 11, and a nut 14 formed on the flange 13. The bolt 10 may be integrally formed.

The rod body 11 is a cylindrical structure, the rod body 11 is used for arranging the screw 20 and the anti-loosening assembly 30, and the thread 12 is arranged on the outer side surface of the rod body 11. In order to provide the screw 20 and the anti-loose assembly 30, the rod body 11 is provided with a threaded hole 111 formed in the rod body 11, and a sliding groove 112 formed in an outer side wall of the rod body 11 and penetrating both sides of the rod body 11. One end of the threaded hole 111 is communicated with the nut 14, the other end of the threaded hole passes through the plane of the sliding groove 112 and is communicated with the sliding groove 112, and the central axis of the threaded hole 111 coincides with the central axis of the rod body 11. The threaded hole 111 is provided with an internal thread (not shown) that is engaged with the screw 20, so that the screw 20 can be set and tightened in the threaded hole 111. The central axis of the sliding groove 112 is perpendicular to the central axis of the rod body 11, so that the threaded hole 111 is perpendicular to the sliding groove 112, so that the screw 20 can pass through the anti-loose assembly 30. The sliding groove 112 is used for arranging the anti-loose assembly 30, so that the anti-loose assembly 30 can extend out from two ends of the sliding groove 112. The thread 12 is spirally arranged on the outer side wall of the rod body 11 along the axial direction of the rod body 11. The thread 12 is used for coupling and fastening with the internal thread in the threaded hole of the locking member during rotation. Which is per se prior art and will not be described in further detail herein. The flange 13 is connected to the rod 11 at one end and to the nut 14 at the other end, so that the nut 14 and the rod 11 are connected via the flange 13. The nut 14 is provided on the flange 13, the nut 14 is used for connecting with an external tool such as a wrench, and the screw 10 is rotated by rotating the nut 14 by the tool, so that the screw 10 is screwed into the threaded hole of the locking member. The top end of the nut 14 is provided with a groove 141, and the groove 141 is used for arranging the screw 20.

The screw 20 is disposed in the threaded hole 111, and the screw 20 is provided with an external thread (not shown) that is engaged with the internal thread in the threaded hole 111, so that the screw 20 can be screwed into the threaded hole 111. One end of the screw 20 is provided with a cross-shaped recess (not shown) for connecting with an external screwdriver, and the other end of the screw 20 passes through the sliding recess 112 and separates the anti-loose assembly 30 disposed in the sliding recess 112 and is clamped by the anti-loose assembly 30. The screw 20 is used to separate the check assembly 30 and position the check assembly 30.

The anti-loose assembly 30 includes two sliding blocks 31 oppositely disposed in the sliding grooves 112, two elastic members 32 having two ends respectively connected to the two sliding grooves 112, and two anti-slip layers 33 respectively disposed on the two sliding blocks 31.

Each of the sliding blocks 31 includes a body 311 slidably disposed in the sliding groove 112, an arc section 312 disposed at one end of the sliding groove 112, and an abutting thread 313 disposed at the other end of the sliding groove 112. The body 31 is located in the sliding groove 112, and the size of the body 31 should be smaller than or equal to the size of the sliding groove 112, so that the body 31 can slide in the sliding groove 112. The arc section 312 is arranged at one end of the body 31 and attached to the side wall of the screw 20, and when the screw 20 is not arranged, the arc section 312 is attached to the arc section 312 of the other sliding block 31. The width of the arc section 312 is smaller than that of the body 31, so that a space for disposing the elastic member 32 is reserved, and the elastic member 32 is disposed conveniently. Due to the arc structure of the arc section 312, when the screw 20 passes through the anti-loose assembly 30, the tip of one end of the screw 20 contacts with the arc section 312, so that the arc section 312 has a guiding function, and the two sliding blocks 31 can be separated more easily by the screw 20. The abutting thread 313 is arranged at the other end of the body 31 and extends out of the sliding groove 112 to be flush with the thread 12, and the spiral direction of the abutting thread 313 is opposite to the spiral direction of the thread 12, so that the abutting thread 313 is not matched with the internal thread in the threaded hole of the locking piece. After the two sliding blocks 31 of the anti-loosening assembly 30 are separated, the abutting thread 313 abuts against and blocks the internal thread in the threaded hole of the locking member, and the screw direction of the abutting thread 313 is opposite to the screw direction of the thread 12, so that the abutting thread 313 is not matched with the internal thread in the threaded hole of the locking member, the screw 10 cannot rotate or reversely rotate, and the purpose of preventing loosening is achieved.

Two ends of the elastic member 32 are respectively connected with one end of the two bodies 311, the elastic member 32 is located on two sides of the arc section 312, and the elastic member 32 is a spring. The elastic element 32 is used for connecting the two sliding blocks 31, and when the screw 20 is not provided, the two sliding blocks 31 are attached to each other under the action of elastic force and are located in the sliding groove 112, so that the abutting thread 313 of the sliding block 31 is prevented from extending out of the sliding groove 112, and the screwing of the screw 10 is prevented from being influenced. In addition, after the screw 20 passes through the anti-loosening assembly 30, the elastic element 32 causes the two sliding blocks 31 to clamp the screw 20 under the action of elastic force, so that the anti-loosening performance of the screw 20 can be improved, and the screw 20 cannot loosen.

The anti-slip layer 33 is disposed on the abutting thread 313, the anti-slip layer 33 may be a rubber layer or a texture, and the anti-slip layer 33 is used to improve the anti-slip performance of the abutting thread 313, so as to further prevent the abutting thread 313 from slipping and loosening.

When the anti-loosening screw is used, the bolt 10 is screwed into the threaded hole of the fastened piece and is tightened, and then the screw 20 is screwed into and penetrates through the anti-loosening assembly 30 from the threaded hole 111 of the groove 141, so that the two sliding blocks 31 are separated, the abutting threads 313 extend out of the sliding groove 111, the abutting threads 313 abut against and clamp the internal threads in the threaded hole of the fastened piece, and the screw 10 cannot rotate or reversely rotate, so that the purpose of preventing loosening is achieved. At the same time, the screw 20 is clamped by the two sliding blocks 311 through the elastic force of the elastic member 32, so that the screw 20 is further fixed, and the screw 20 is prevented from loosening. When the screw 20 is detached, the two sliding blocks 311 are attached to each other under the elastic force of the elastic member 32, and are retracted into the sliding groove 111, and the screw rod 10 is detached by being unscrewed, thereby completing the detachment. The assembling and disassembling process is simple, the assembling is convenient, and any one component can be replaced when damaged.

Compared with the prior art, the fastener suitable for the automobile provided by the invention has a good anti-loosening effect on the bolt by arranging the anti-loosening assembly 30. The two sliding blocks 31 of the anti-loosening assembly 30 are separated by arranging the screw 20, so that the abutting thread 313 extends out of the sliding groove 111, the spiral direction of the abutting thread 313 is opposite to the spiral direction of the thread 12, and therefore, the abutting thread 313 is not matched with the internal thread in the threaded hole of the locking piece, the abutting thread 313 is clamped with the internal thread in the threaded hole of the locked piece, the screw 10 cannot rotate or reversely rotate, and the purpose of preventing loosening is achieved. At the same time, the screw 20 is clamped by the two sliding blocks 311 through the elastic force of the elastic member 32, so that the screw 20 is further fixed, and the screw 20 is prevented from loosening. In addition, the whole assembling and disassembling process is simple, the assembly is convenient, and any one damaged component can be replaced.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, and any modifications, equivalents or improvements that are within the spirit of the present invention are intended to be covered by the following claims.