Self-locking bolt fastener

Abstract

The utility model provides a self-locking bolt fastener. The self-locking type bolt fastener comprises a nut and a bolt, the stud is fixedly connected to the bottom end of the nut, a mounting hole is formed in the top of the nut, a fixing ring is fixedly connected to the top of the nut, an auxiliary spring is fixedly connected to the top of the fixing ring, a movable disc is fixedly connected to the top end of the auxiliary spring, and a connecting rod is fixedly connected to the bottom end of the movable disc; and the bottom end of the connecting rod is fixedly connected with a connecting bolt, the bottom end of the connecting bolt is fixedly connected with a fixing disc, four mounting openings are formed in the outer surface of the fixing disc, and supporting assemblies are mounted on the surfaces, opposite to each other, of the outer surfaces of the nuts. According to the self-locking type bolt fastener provided by the utility model, a stable self-locking structure of the bolt fastener consisting of the self-locking frame and the internal thread ring is utilized, so that the influence of vibration on the connection of the self-locking fastener can be effectively reduced, and the stability of a structural joint is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt fastener technical field especially relates to self locking bolt fastener. BACKGROUND

[0002] Fastener is a kind of mechanical parts widely used for fastening connection. Fastener is widely used in various industries, including energy, electronics, electrical appliances, machinery, chemical industry, metallurgy, mould, hydraulic industry and other industries, in various machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemical industry, instruments and supplies, etc.

[0003] Bolt fastener is composed of stud, nut and nut, and stud is one of the basic components of self locking fastener, for connecting and fixing two or more components, self locking fastener is designed through wedge member, so that the first and second nuts rotate together when tightening, and the wedge member makes the two nuts extrude along the axial direction when loosening.

[0004] And the existing self locking bolt fastener is generally fixed by nut and stud cooperation on the connection, which is easy to be loosened by vibration, thereby affecting the stability of the connection.

[0005] Therefore, it is necessary to provide self locking bolt fastener to solve the above technical problems. CONTENT OF UTILITY MODEL

[0006] The utility model provides self locking bolt fastener, solve the problem that nut and stud are connected by thread mode and fixed on the connection, which is easy to be loosened by vibration, thereby affecting the stability of the connection.

[0007] To solve the above technical problems, the utility model provides a self locking bolt fastener, which comprises a nut.

[0008] Stud, the stud is fixedly connected at the bottom end of the nut, the top of the nut is provided with a mounting hole, the top of the nut is fixedly connected with a fixing ring, the top of the fixing ring is fixedly connected with an auxiliary spring, the top end of the auxiliary spring is fixedly connected with a movable disc, the bottom end of the movable disc is fixedly connected with a connecting rod, the bottom end of the connecting rod is fixedly connected with a connecting bolt, the bottom end of the connecting bolt is fixedly connected with a fixed disc, the outer surface of the fixed disc is provided with four mounting ports, and the opposite sides of the outer surface of the nut are both provided with a supporting assembly.

[0009] Four movable ports, four movable ports are arranged on the outer surface of the stud close to the bottom end, and the inside of the four movable ports is rotatably connected with a self locking frame through a rotating buckle, the outer surface of the stud is threadedly connected with an internal thread ring, the opposite sides of the outer surface of the internal thread ring are both fixedly connected with an ear block, and the bottom end of the internal thread ring is provided with a gasket.

[0010] The mounting hole extends into the interior of the stud, and the mounting hole and the movable port are connected. The auxiliary spring is located on the outer surface of the connecting rod, which is inserted into the mounting hole. The adjacent ends of the four self-locking brackets are rotatably connected to the interior of the mounting port. (See details...) Figure 4 .

[0011] Preferably, a pull block is fixedly connected to the top of the movable disc, and a through hole is provided on one side of the pull block. The support assembly includes a fixing plate, which is installed on the outer surface of the nut by screws.

[0012] The outer surface of the nut has a hole for threaded connection with the screw.

[0013] Preferably, each of the fixed plates has a mating plate fixedly connected to its bottom, and each of the mating plates has an adjusting bolt threadedly connected to its top.

[0014] The adjusting bolts are threaded through the top and bottom of the mating plate.

[0015] Preferably, a rotating ring is rotatably connected to the bottom end of the adjusting bolt, and a contact ring is fixedly connected to the bottom end of the rotating ring;

[0016] The position of the contact ring is adjusted by adjusting the bolts. After the internal threaded ring is adjusted to the correct position, the top of the contact ring and the internal threaded ring make contact.

[0017] Preferably, a support spring is fixedly connected to the bottom end of the fixed plate, and a support plate is fixedly connected to the bottom end of the support spring;

[0018] The bottom of the support plate and the inner wall of the mounting hole are in contact.

[0019] Preferably, a connecting cap is threaded onto the outer surface of the stud at the bottom end, and a dust cover is fixedly connected to the top of the connecting cap;

[0020] The dust cover can cover the self-locking frame after it has been unfolded.

[0021] Compared with related technologies, the self-locking bolt fastener provided by this utility model has the following beneficial effects:

[0022] The utility model provides a self -locking bolt fastener, in order to increase the stability of self -locking bolt fastener connecting structure, the mounting hole that one penetrates to the inside of the stud is set up in the top of the nut, simultaneously four movable mouths are set up in the position of the outer surface of the stud near the bottom end, after then in the inside of each movable mouth is installed a self -locking frame through the rotary buckle, after then only needs to rotate the connection of four self -locking frames adjacent one end and the four installation mouth of fixed disc outer surface is good, can drive the self -locking frame to unfold from the inside of movable mouth or income to the inside of movable mouth through the rise and fall of fixed disc, and the connecting rod is installed through the connecting bolt in the top of fixed disc, connects through movable disc and the top of auxiliary spring in the top of connecting rod, can push the connecting rod to move upward through the support of auxiliary spring provides, thereby drive fixed disc to move upward and let four self -locking frames unfold, through the structure utilizes the stable self -locking structure of bolt fastener that self -locking frame and internal thread ring compose, can effectively reduce the influence of vibration to self -locking fastener connection, increase the stability of structure connection. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The structure schematic diagram of a preferred embodiment of the self -locking bolt fastener provided by the utility model is provided.

[0024] Figure 2 The structure schematic diagram of movable mouth provided by the utility model is provided.

[0025] Figure 3 The structure schematic diagram of connecting cap provided by the utility model is provided.

[0026] Figure 4 The structure schematic diagram of the utility model is provided Figure 3 The enlarged view of A shown in the figure is provided.

[0027] Figure 5 The enlarged view of B shown in the figure is provided. Figure 3

[0028] Mark in the figure: 1, nut, 2, auxiliary spring, 3, pull block, 4, through -hole, 5, movable disc, 6, fixed ring, 7, support assembly, 701, fixed plate, 702, screw, 703, rotating ring, 704, contact ring, 705, adjusting bolt, 706, butt joint plate, 8, ear block, 9, internal thread ring, 10, gasket, 11, dust cover, 12, connecting cap, 13, stud, 14, movable mouth, 15, self -locking frame, 16, mounting hole, 17, installation mouth, 18, connecting bolt, 19, fixed disc, 20, support disc, 21, support spring, 22, rotary buckle, 23, connecting rod. DETAILED DESCRIPTION

[0029] The utility model is further described below in combination with the drawings and implementation.

[0030] ​Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 wherein, Figure 1 is a preferred embodiment of the structure of the self-locking bolt fastener provided by the utility model; Figure 2 is a structure diagram of the movable port provided by the utility model; Figure 3 is a structure diagram of the connecting cap provided by the utility model; Figure 4 is an enlarged view of A shown in Figure 3 ; Figure 5 is an enlarged view of B shown in Figure 3 . The self-locking bolt fastener comprises a nut 1;

[0031] A stud 13 is fixedly connected at the bottom end of the nut 1, a mounting hole 16 is formed at the top of the nut 1, a fixing ring 6 is fixedly connected at the top of the nut 1, an auxiliary spring 2 is fixedly connected at the top of the fixing ring 6, a movable disc 5 is fixedly connected at the top end of the auxiliary spring 2, a connecting rod 23 is fixedly connected at the bottom end of the movable disc 5, a connecting bolt 18 is fixedly connected at the bottom end of the connecting rod 23, a fixing disc 19 is fixedly connected at the bottom end of the connecting bolt 18, four mounting openings 17 are formed at the outer surface of the fixing disc 19, and a supporting assembly 7 is mounted on the opposite side of the outer surface of the nut 1;

[0032] Four movable openings 14 are formed at the position close to the bottom end of the outer surface of the stud 13, and a self-locking frame 15 is rotatably connected in the four movable openings 14 through a rotating buckle 22, an internally threaded ring 9 is threadedly connected to the outer surface of the stud 13, ear blocks 8 are fixedly connected to the opposite side of the outer surface of the internally threaded ring 9, and a gasket 10 is arranged at the bottom end of the internally threaded ring 9;

[0033] The mounting hole 16 penetrates into the inside of the stud 13, the mounting hole 16 and the movable opening 14 are communicated, the auxiliary spring 2 is located at the outer surface of the connecting rod 23, the connecting rod 23 is inserted into the inside of the mounting hole 16, one end of each of the four self-locking frames 15 is rotatably connected in the inside of the mounting opening 17, and specific reference can be made to Figure 4 , the gasket 10 is sleeved on the outer surface of the stud 13, and the position of the internally threaded ring 9 and the position of the ear block 8 are referred to Figure 2 .

[0034] A pulling block 3 is fixedly connected at the top end of the movable disc 5, a through hole 4 is formed at one side of the pulling block 3, and the supporting assembly 7 comprises a fixed plate 701 which is mounted on the outer surface of the nut 1 through a screw 702;

[0035] ​The outer surface of the nut 1 is provided with a hole for thread connection with the screw 702, and the position of the fixing plate 701 is referenced Figure 5 .

[0036] The bottom of the fixing plate 701 is fixedly connected with a butt plate 706, and the top of the butt plate 706 is threadedly connected with an adjusting bolt 705.

[0037] The adjusting bolt 705 is threadedly connected with the top and bottom of the butt plate 706, and the top of the adjusting bolt 705 is provided with a manually rotating handle.

[0038] The bottom end of the adjusting bolt 705 is rotatably connected with a rotating ring 703, and the bottom end of the rotating ring 703 is fixedly connected with a contact ring 704.

[0039] The contact ring 704 is adjusted in position by the adjusting bolt 705, and after the inner thread ring 9 is adjusted in position, the top end of the contact ring 704 is in contact with the inner thread ring 9, and the inner thread ring 9 is placed in a loosened state by using friction and supporting force.

[0040] The bottom end of the fixing disc 19 is fixedly connected with a supporting spring 21, and the bottom end of the supporting spring 21 is fixedly connected with a supporting disc 20.

[0041] The supporting disc 20 is in contact with the bottom of the inner wall of the mounting hole 16, and the supporting spring 21 works synchronously with the auxiliary spring 2 to play an auxiliary role.

[0042] The outer surface of the stud 13 is threadedly connected with a connecting cap 12 at the bottom end, and the top end of the connecting cap 12 is fixedly connected with a dust cover 11.

[0043] The dust cover 11 can cover the unfolded self-locking frame 15, so as to reduce the entry of dust into the inside of the movable opening 14.

[0044] The working principle of the self-locking bolt fastener is as follows:

[0045] The mounting hole 16 is formed in the top of the nut 1 and penetrates into the inside of the stud 13, four movable openings 14 are formed on the outer surface of the stud 13 near the bottom end, then a self-locking frame 15 is installed in each movable opening 14 through a rotating buckle 22, then only the adjacent end of the four self-locking frames 15 and the four mounting holes 17 on the outer surface of the fixing disc 19 are rotatably connected, the self-locking frames 15 can be unfolded from the inside of the movable opening 14 or retracted into the inside of the movable opening 14 through the rising and falling of the fixing disc 19, the connecting rod 23 is installed on the top end of the fixing disc 19 through the connecting bolt 18, the connecting rod 23 is connected with the top end of the auxiliary spring 2 through the movable disc 5, the connecting rod 23 can be pushed to move upward through the supporting force provided by the auxiliary spring 2, so that the fixing disc 19 moves upward and the four self-locking frames 15 are unfolded, in actual use, the auxiliary spring 2 is compressed by pressing the movable disc 5, the fixing disc 19 is driven to move downward through the connecting rod 23, so that the four self-locking frames 15 are retracted into the inside of the movable opening 14, then the stud 13 is inserted into the position to be connected, the pressing on the movable disc 5 is released, the self-locking frames 15 are unfolded under the supporting force of the auxiliary spring 2, then the inner thread ring 9 is rotated to contact the other side of the structure to be connected, the structure to be connected is connected through the cooperation of the inner thread ring 9 and the self-locking frame 15, finally the length of the supporting assembly 7 is adjusted to support the distance between the inner thread ring 9 and the nut 1, so that the stability of the connection is increased.

[0046] Compared with the related art, the self-locking bolt fastener has the following beneficial effects:

[0047] In order to increase the stability of the self-locking bolt fastener connection structure, the mounting hole 16 is formed in the top of the nut 1 and penetrates into the inside of the stud 13, four movable openings 14 are formed on the outer surface of the stud 13 near the bottom end, then a self-locking frame 15 is installed in each movable opening 14 through a rotating buckle 22, then only the adjacent end of the four self-locking frames 15 and the four mounting holes 17 on the outer surface of the fixing disc 19 are rotatably connected, the self-locking frames 15 can be unfolded from the inside of the movable opening 14 or retracted into the inside of the movable opening 14 through the rising and falling of the fixing disc 19, the connecting rod 23 is installed on the top end of the fixing disc 19 through the connecting bolt 18, the connecting rod 23 is connected with the top end of the auxiliary spring 2 through the movable disc 5, the connecting rod 23 can be pushed to move upward through the supporting force provided by the auxiliary spring 2, so that the fixing disc 19 moves upward and the four self-locking frames 15 are unfolded, through the structure, the bolt fastener stable self-locking structure composed of the self-locking frame 15 and the inner thread ring 9 can effectively reduce the influence of vibration on the self-locking fastener connection and increase the stability of the structure connection.

[0048] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made by using the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

Claims

1. A self-locking bolt fastener characterized by, Include: Nut; The threaded stud is fixedly connected at the bottom end of the nut, the top of the nut is provided with a mounting hole, the top of the nut is fixedly connected with a fixed ring, the top of the fixed ring is fixedly connected with an auxiliary spring, the top end of the auxiliary spring is fixedly connected with a movable disc, the bottom end of the movable disc is fixedly connected with a connecting rod, the bottom end of the connecting rod is fixedly connected with a connecting bolt, the bottom end of the connecting bolt is fixedly connected with a fixed disc, the outer surface of the fixed disc is provided with four mounting ports, and the opposite sides of the outer surface of the nut are both provided with a supporting assembly; Four movable ports, four movable ports are provided on the outer surface of the threaded stud near the bottom end, and the inner part of the four movable ports is rotatably connected with a self-locking frame through a rotating buckle, the outer surface of the threaded stud is threadedly connected with an internal thread ring, the opposite sides of the outer surface of the internal thread ring are both fixedly connected with an ear block, and the bottom end of the internal thread ring is provided with a gasket.

2. The self-locking bolt fastener of claim 1, wherein, The top end of the movable disc is fixedly connected with a pull block, a through hole is formed in one side of the pull block, the supporting assembly comprises a fixed plate, and the fixed plate is installed on the outer surface of the nut by screws.

3. The self-locking bolt fastener of claim 2, wherein, The bottom of the fixed plate is fixedly connected with a butt plate, and the top of the butt plate is threadedly connected with an adjusting bolt.

4. The self-locking bolt fastener of claim 3, wherein, The bottom end of the adjusting bolt is rotatably connected with a rotating ring, and the bottom end of the rotating ring is fixedly connected with a contact ring.

5. The self-locking bolt fastener of claim 1, wherein, The bottom end of the fixed disc is fixedly connected with a supporting spring, and the bottom end of the supporting spring is fixedly connected with a supporting disc.

6. The self-locking bolt fastener of claim 1, wherein, The outer surface of the threaded stud is threadedly connected with a connecting cap at the bottom end, and the top end of the connecting cap is fixedly connected with a dust cover.

Images