CN219529517U - Fastener with self-locking threads - Google Patents

Abstract

The utility model discloses a fastener with self-locking threads, which comprises a screw rod and a self-locking assembly, wherein the top of the screw rod is fixedly provided with a bolt head, and the self-locking assembly is arranged in the screw rod and at one side close to the bottom. The utility model has the beneficial effects that when the screw rod is used, the screw rod is connected with two workpieces through the self-locking assembly, the screw rod is rotated to drive the moving block to move downwards, and the connecting rod is used for pushing the two inserting rods to penetrate through the through groove and extend to the outer side of the through groove to further fix the positions of the two workpieces; the screw rod can not be taken out even if the bolt head is rotated by mistake, so that the connection of the two workpieces is firmer, the workpiece and the screw rod are prevented from loosening in the connection place for a long time, and the use is safer.

Description

Fastener with self-locking threads

Technical Field

The utility model relates to the technical field of threaded fasteners, in particular to a fastener with self-locking threads.

Background

The fastener is a mechanical part which is used for fastening connection and has extremely wide application. The fastener is widely used in the industries including energy, electronics, electrical appliances, machinery, chemical industry, metallurgy, molds, hydraulic pressure and the like, and can be seen on various machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemical industry, instruments, articles and the like, so that the fastener is the most widely used mechanical foundation. The threaded fastener is a mechanical part with internal threads or external threads, and is generally used as a fastener, so that a plurality of components can be conveniently combined. The most common threaded fasteners are screws, nuts and bolts.

Most of threaded fasteners are limited and fixed only by threads, the loosening condition of the fasteners is prolonged, the connecting positions of the fasteners can be loosened, bolts can be matched with nuts for use generally, and the screw rod does not have a self-locking function. Accordingly, one skilled in the art would be able to provide a fastener with self-locking threads to address the problems set forth in the background above.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a fastener with self-locking threads, which comprises a screw rod and a self-locking assembly, wherein the top of the screw rod is fixedly provided with a bolt head, and the self-locking assembly is arranged in the screw rod and is close to one side of the bottom;

the self-locking assembly comprises a rotating groove, the rotating groove is formed in one side, close to the bottom, of the inner portion of the screw rod, the screw rod is connected with the inner portion of the rotating groove in a rotating mode, the moving block is connected with the outer side threads of the screw rod, inserting rods are symmetrically connected to the two sides of the bottom of the rotating groove in a sliding mode, through grooves are symmetrically formed in the two sides of the screw rod and close to the inserting rods, one side, close to the through grooves, of each inserting rod extends to the inside of the through grooves, two fixing blocks are fixedly installed on two sides, close to the top of each inserting rod, of each moving block, one side of each fixing block is connected with the corresponding fixing block through a connecting rod, and the connecting rods are connected with the corresponding fixing blocks in a rotating mode.

Preferably: the screw rod is connected with the dwang in the inside rotation, the one end that the screw rod is close to the dwang and dwang fixed connection, the one end that the screw rod was kept away from to the dwang extends to inside the bolt head top mounting groove, and fixed mounting has the dwang, inside and the being located dwang outside the mounting groove is connected with the protection frame through the pivot rotation.

Preferably: limiting grooves are symmetrically formed in two sides of the rotating groove, limiting rods are connected inside the limiting grooves in a sliding mode, and one sides, close to the moving blocks, of the limiting rods are fixedly connected with the moving blocks.

Preferably: the sliding groove is symmetrically formed in one side, close to the inserting and connecting rod, of the bottom of the rotating groove, a limiting block is connected inside the sliding groove in a sliding mode, and one side, close to the inserting and connecting rod, of the limiting block is fixedly connected with the inserting and connecting rod.

Preferably: the clamping block is fixedly mounted on one side, far away from the rotating shaft, of the bottom of the protection frame, the clamping groove is formed in one side, close to the clamping block, of the mounting groove, the bottom end of the clamping block extends to the inside of the clamping groove, and the pushing block is fixedly mounted on one side of the protection frame.

The utility model has the technical effects and advantages that:

when the screw rod is used, the screw rod is connected with two workpieces through the self-locking assembly, the screw rod is rotated to drive the moving block to move downwards, the connecting rod is used for pushing the two inserting rods to penetrate through the through grooves and extend to the outer sides of the through grooves to further fix the positions of the two workpieces, and the distance from the bolt head to the through grooves is the same as the thickness of the two workpieces (as shown in fig. 3); the screw rod can not be taken out even if the bolt head is rotated by mistake, so that the connection of the two workpieces is firmer, the workpiece and the screw rod are prevented from loosening in the connection place for a long time, and the use is safer.

Drawings

FIG. 1 is a perspective view of a fastener with self-locking threads provided in an embodiment of the present utility model;

FIG. 2 is a front cross-sectional view of a self-locking fastener with self-locking threads according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a self-locking fastener with self-locking threads according to an embodiment of the present utility model after the fastener is attached to a workpiece;

fig. 4 is an enlarged view at a in fig. 2;

fig. 5 is an enlarged view at B in fig. 2.

In the figure: 1. a screw; 11. a bolt head; 12. a mounting groove; 2. a self-locking assembly; 21. a rotating groove; 22. a screw rod; 23. a moving block; 24. inserting a connecting rod; 25. a through groove; 26. a fixed block; 27. a connecting rod; 28. a rotating lever; 281. a rotating block; 29. a limit groove; 210. a limit rod; 211. a chute; 212. a limiting block; 3. a protective frame; 31. a clamping block; 32. and pushing the block.

Description of the embodiments

The utility model will be described in further detail with reference to the drawings and the detailed description. The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Examples

Referring to fig. 1 to 5, in this embodiment, a fastener with self-locking threads is provided, which includes a screw 1 and a self-locking component 2, wherein a bolt head 11 is fixedly installed at the top of the screw 1, and the self-locking component 2 is disposed at one side of the interior of the screw 1, which is close to the bottom;

the self-locking assembly 2 comprises a rotating groove 21, wherein the rotating groove 21 is formed in one side, close to the bottom, of the inner portion of the screw 1, a screw rod 22 is rotatably connected in the rotating groove 21, a moving block 23 is connected to the outer side of the screw rod 22 in a threaded mode, inserting rods 24 are symmetrically and slidingly connected to the two sides of the bottom of the rotating groove 21, through grooves 25 are symmetrically formed in the two sides of the screw 1 and close to the inserting rods 24, one side, close to the through grooves 25, of each inserting rod 24 extends to the inner portion of the through groove 25, fixing blocks 26 are fixedly installed on two sides, close to the top, of each inserting rod 24, of each moving block 23, one side of the fixing blocks 26 is connected through a connecting rod 27, and the connecting rod 27 is rotatably connected with the fixing blocks 26.

In this embodiment, when the screw 1 is used, the self-locking assembly 2 is provided, so that after the screw 1 connects two workpieces, the screw 22 is rotated to drive the moving block 23 to move downwards, and the connecting rod 27 is used to push the two plugging rods 24 to penetrate through the through groove 25 and extend to the outer side of the through groove 25 to further fix the positions of the two workpieces, and the distance between the bolt head 11 and the through groove 25 is the same as the thickness of the two workpieces as shown in fig. 3; the screw rod 1 can not be taken out even if the bolt head 11 is rotated by mistake, so that the connection of two workpieces is firmer, the workpiece and the screw rod 1 are prevented from loosening in the connection place for a long time, and the use is safer.

Examples

Referring to fig. 1 to 5, based on the same concept as that of the above embodiment 1, it is further proposed that a rotating rod 28 is rotatably connected inside the screw 1, one end of the screw 22, which is close to the rotating rod 28, is fixedly connected with the rotating rod 28, one end of the rotating rod 28, which is far away from the screw 22, extends to the inside of a mounting groove 12 at the top of the bolt head 11, and is fixedly provided with a rotating block 281, and a protective frame 3 is rotatably connected inside the mounting groove 12 and outside the rotating block 281 through a rotating shaft; the rotating block 281 is configured to drive the rotating rod 28 to rotate, further drive the rotating rod 28 to rotate, and further protect the rotating block 281 through the protection frame 3, so as to prevent the rotating block 281 from being touched by mistake, thereby enabling the plugging rod 24 to displace.

Specifically, the two sides of the rotating groove 21 are symmetrically provided with limiting grooves 29, limiting rods 210 are connected in the limiting grooves 29 in a sliding manner, and one side, close to the moving block 23, of each of the two limiting rods 210 is fixedly connected with the moving block 23; the limiting groove 29 and the limiting rod 210 are matched with the moving block 23 to move up and down, so that the moving block 23 is prevented from rotating along with the screw rod 22, and the use is more stable.

Specifically, a sliding groove 211 is symmetrically formed at one side of the bottom of the rotating groove 21, which is close to the plugging rod 24, a limiting block 212 is slidably connected in the sliding groove 211, and one side of the limiting block 212, which is close to the plugging rod 24, is fixedly connected with the plugging rod 24; the sliding groove 211 and the limiting block 212 are arranged to match the movement of the plugging rod 24, so that the movement of the plugging rod 24 is more stable.

Specifically, a clamping block 31 is fixedly installed at one side, far away from the rotating shaft, of the bottom of the protection frame 3, a clamping groove is formed in one side, close to the clamping block 31, of the mounting groove 12, the bottom end of the clamping block 31 extends into the clamping groove, and a pushing block 32 is fixedly installed at one side of the protection frame 3; the clamping block 31 is connected with the clamping groove through the arranged protective frame 3, and the clamping block 31 can be made of elastic materials; the protection of the clamping block 31 outside the rotating block 281 is more firm, and the arranged pushing block 32 is convenient for driving the protection frame 3 to rotate.

The working principle of the utility model is as follows:

when the screw 1 is used, after the screw 1 connects two workpieces through the self-locking assembly 2, the moving block 23 is driven to move downwards by rotating the screw rod 22, the two inserting rods 24 are pushed by the connecting rod 27 to penetrate through the through groove 25 and extend to the outer side of the through groove 25 to further fix the positions of the two workpieces, and the distance from the bolt head 11 to the through groove 25 is the same as the thickness of the two workpieces as shown in fig. 3; the screw rod 1 can not be taken out even if the bolt head 11 is rotated by mistake, so that the connection of two workpieces is firmer, the workpiece and the screw rod 1 are prevented from loosening in the connection place for a long time, and the use is safer.

It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present utility model without the inventive step, are intended to be within the scope of the present utility model. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.

Claims (5)

1. The fastener with the self-locking threads comprises a screw rod (1) and a self-locking assembly (2), and is characterized in that a bolt head (11) is fixedly arranged at the top of the screw rod (1), and the self-locking assembly (2) is arranged at one side, close to the bottom, of the interior of the screw rod (1);

the self-locking assembly (2) comprises a rotating groove (21), the rotating groove (21) is formed in one side, close to the bottom, of the inner portion of the screw (1), a screw rod (22) is connected to the rotating groove (21) in a rotating mode, a moving block (23) is connected to the screw rod (22) in an outer side in a threaded mode, inserting rods (24) are symmetrically and slidingly connected to the two sides of the bottom of the rotating groove (21), through grooves (25) are symmetrically formed in two sides of the screw (1) and close to the inserting rods (24), one side, close to the through grooves (25), of each inserting rod (24) extends to the inner portion of each through groove (25), two fixing blocks (26) are fixedly mounted on two sides, close to the top of each inserting rod (24), of each fixing block (26) through connecting rods (27), and the connecting rods (27) are connected with the corresponding fixing blocks (26) in a rotating mode.

2. The fastener with self-locking threads according to claim 1, wherein a rotating rod (28) is rotatably connected inside the screw (1), one end of the screw rod (22) close to the rotating rod (28) is fixedly connected with the rotating rod (28), one end of the rotating rod (28) far away from the screw rod (22) extends to the inside of a top mounting groove (12) of the bolt head (11), a rotating block (281) is fixedly mounted inside the mounting groove (12), and a protection frame (3) is rotatably connected outside the rotating block (281) through a rotating shaft.

3. The fastener with self-locking threads according to claim 2, wherein the limiting grooves (29) are symmetrically formed on two sides of the rotating groove (21), limiting rods (210) are connected inside the limiting grooves (29) in a sliding mode, and one sides, close to the moving blocks (23), of the two limiting rods (210) are fixedly connected with the moving blocks (23).

4. The fastener with self-locking threads according to claim 2, wherein sliding grooves (211) are symmetrically formed in the bottom of the rotating groove (21) on one side close to the inserting connection rod (24), limiting blocks (212) are connected inside the sliding grooves (211) in a sliding mode, and one side, close to the inserting connection rod (24), of each limiting block (212) is fixedly connected with the inserting connection rod (24).

5. The fastener with self-locking threads according to claim 2, wherein a clamping block (31) is fixedly installed at one side, far away from the rotating shaft, of the bottom of the protective frame (3), a clamping groove is formed in one side, close to the clamping block (31), of the installation groove (12), the bottom end of the clamping block (31) extends into the clamping groove, and a pushing block (32) is fixedly installed at one side of the protective frame (3).