CN220037220U

CN220037220U - Fastening bolt

Info

Publication number: CN220037220U
Application number: CN202321656520.9U
Authority: CN
Inventors: 刘辉; 王秋生; 余倩
Original assignee: Chengdu Jincheng Fastener Manufacturing Co ltd
Current assignee: Chengdu Jincheng Fastener Manufacturing Co ltd
Priority date: 2023-06-28
Filing date: 2023-06-28
Publication date: 2023-11-17
Anticipated expiration: 2033-06-28

Abstract

The utility model relates to the field of bolts, in particular to a fastening bolt which comprises a nut, a limiting piece, an anti-slip piece, a connecting piece, a blocking piece, an external thread, a nut, an internal thread and an anti-slip washer, wherein the nut is provided with a first clamping piece and a second clamping piece; the side surface of the nut is connected with the limiting piece; limiting protrusions are arranged on two sides of the limiting piece, anti-slip layers are arranged on the side faces of the outer end faces of the limiting piece and the limiting protrusions, and the bottom of the nut is connected with the connecting piece; the side surface of the outer end surface of the connecting piece is connected with the anti-skid piece; one end of the connecting piece, which is far away from the anti-slip piece, is connected with the blocking piece; according to the device, the risk of accidental rotation of the device can be effectively improved, the possibility of accidental rotation of the device can be effectively reduced by adopting an asymmetric nut structure through a side abutting mode, the protruding structures on two sides can be contacted with the side of an abutting piece during accidental rotation, so that a blocking effect is achieved, and meanwhile, the protruding outer end face plane structures on two sides can be compatible with most spanner structures on the market compared with the device.

Description

Fastening bolt

Technical Field

The utility model relates to the technical field of bolts, in particular to a fastening bolt.

Background

The fastening bolt is a kind of mechanical part, a cylindrical threaded fastener matched with a nut is a kind of fastener formed by two parts of a head part and a screw rod (a cylinder with external threads), the fastening bolt is matched with the nut and is used for fastening and connecting two parts with through holes, the connection mode is called bolting, the nut can be screwed off from the bolt, and the two parts can be separated, so the bolting belongs to detachable connection.

The Chinese patent with the publication number of CN109372872A discloses a fastening bolt, which comprises a screw rod and a bolt head, wherein the bolt head is positioned at the top of one end of the screw rod, the top of the bolt head is provided with a limit groove, a protective cover is fixed in the limit groove, the top of the bolt head is provided with a rotating groove, the rotating groove penetrates through the screw rod and the bolt head, a screw joint column is fixed in the rotating groove, the top of the screw joint column is fixedly provided with a rotating seat, the top of the rotating seat is provided with a fixing hole, the bottom of one end of the screw joint column, which is far away from the rotating groove, is fixedly provided with a movable screw seat, one side of the joint of the movable screw seat and the screw rod is provided with a stop block, the stop block is of an arc structure, one side of the stop block, which is positioned in the screw rod, can be threaded, and when the two ends of the stop block are clamped and connected with a first anti-disengaging nut and a second anti-disengaging nut, the utility model can realize unidirectional disengagement of the fastening bolt, and has wide application range and simple operation.

However, the above disclosed solution has the following disadvantages: the scheme has the advantages that the top locking effect of the bolt is unstable in the actual use process, the locking is inconvenient to be carried out through the side abutting piece, and meanwhile, the device does not have a matched nut structure, so that the stability of the use process is reduced.

Disclosure of Invention

The utility model aims at solving the technical problems in the background art, and provides a fastening bolt, which can effectively improve the risk of accidental rotation of the device by adopting an asymmetric nut structure, can effectively reduce the possibility of accidental rotation of the device by adopting a side abutting mode, and the convex structures on two sides can be contacted with the side of an abutting piece when the device is accidentally rotated, so that the blocking effect is realized, and meanwhile, the plane structures of the outer end surfaces of the two sides are more compatible with most spanner structures on the market than the device, so that the device is convenient to rotate and lock, the locking effect of the device can be improved by adopting a matched nut structure, and the rotation damping between the nut and the bolt can be increased by adopting the structures of a blocking piece and a bloom washer, so that the risk of loosening is reduced.

The utility model provides a fastening bolt which comprises a nut, a limiting piece, an anti-slip piece, a connecting piece, a blocking piece, an external thread, a nut, an internal thread and an anti-slip washer, wherein the nut is provided with a groove;

the side surface of the nut is connected with the limiting piece; limiting protrusions are arranged on two sides of the limiting piece, anti-slip layers are arranged on the side faces of the outer end faces of the limiting piece and the limiting protrusions, and the bottom of the nut is connected with the connecting piece; the side surface of the outer end surface of the connecting piece is connected with the anti-skid piece; one end of the connecting piece, which is far away from the anti-slip piece, is connected with the blocking piece; the blocking piece is conical; one end of the blocking piece far away from the connecting piece is contacted with the external thread; the external thread is arranged on the side surface of the outer end surface of the bottom of the connecting piece; the external thread is in threaded connection with the internal thread; the internal thread is connected with the inner wall of the nut, and the side surface of the nut is connected with the anti-slip washer; the end of the anti-slip washer away from the nut is pressed in contact with the blocking member.

Preferably, a limiting groove is formed in the side face of the outer end face of the limiting piece, and an anti-slip layer is arranged on the inner wall of the limiting groove.

Preferably, a buffer layer is arranged on the side surface of the outer end surface of the blocking piece, annular equidistant anti-slip lines are arranged on the outer end surface of the buffer layer, and the anti-slip lines are in contact extrusion with the side surface of the anti-slip washer.

Preferably, the lateral surface of the outer end surface of the nut is provided with anti-slip planes which are symmetrically arranged on two sides of the limiting piece.

Preferably, a plurality of groups of rubber sealing rings are arranged on the outer end face of the anti-skid piece, and the plurality of groups of rubber sealing rings are distributed on the side face of the outer end face of the connecting piece at equal intervals.

Preferably, a groove is arranged at the center of the top of the nut, and the inner diameter of the groove is the same as the outer diameter of the external thread.

The technical scheme of the utility model has the following beneficial technical effects:

according to the device, the risk of accidental rotation of the device can be effectively improved, the possibility of accidental rotation of the device can be effectively reduced by adopting an asymmetric nut structure through a side abutting mode, the protruding structures on two sides can be contacted with the side surfaces of the abutting piece during accidental rotation, so that the blocking effect is achieved, meanwhile, the protruding outer end surface plane structures on two sides can be compatible with most of spanner structures on the market compared with the device, the device can be conveniently rotated to be locked, the locking effect of the device can be improved through a matched nut structure, the rotation damping between a nut and a bolt can be increased through the structures of the blocking piece and the bloom washer, the risk of loosening is reduced, the self structure of the device and the inner wall of a counter bore can be damped through the structure of the anti-skid piece, the sealing performance of the bottom thread structure of the device is improved to a certain extent, and the bottom oxidation speed can be reduced through the blocking of the anti-skid piece.

Drawings

FIG. 1 is a front view of an embodiment of a fastening bolt of the present utility model;

fig. 2 is a schematic structural view of a limiting member in a fastening bolt according to the present utility model;

FIG. 3 is a side view of a fastening bolt according to the present utility model;

reference numerals: 1. a screw cap; 2. a limiting piece; 3. an anti-slip member; 4. a connecting piece; 5. a blocking member; 6. an external thread; 7. a nut; 8. an internal thread; 9. an anti-slip washer.

Detailed Description

Example 1

As shown in fig. 1 to 3, the fastening bolt provided by the utility model comprises a nut 1, a limiting piece 2, an anti-slip piece 3, a connecting piece 4, a blocking piece 5, an external thread 6, a nut 7, an internal thread 8 and an anti-slip washer 9;

the side surface of the screw cap 1 is connected with the limiting piece 2; limiting protrusions are arranged on two sides of the limiting piece 2, anti-slip layers are arranged on the side faces of the outer end faces of the limiting piece 2 and the limiting protrusions, and the bottom of the nut 1 is connected with the connecting piece 4; the side surface of the outer end surface of the connecting piece 4 is connected with the anti-skid piece 3; the end of the connecting piece 4 away from the anti-slip piece 3 is connected with the blocking piece 5; the blocking member 5 is conical; the end of the blocking member 5 remote from the connecting member 4 is in contact with the external thread 6; the external thread 6 is arranged on the side surface of the outer end surface of the bottom of the connecting piece 4; the external thread 6 is in threaded connection with the internal thread 8; the internal thread 8 is connected with the inner wall of the nut 7, and the side surface of the nut 7 is connected with the anti-slip washer 9; the end of the anti-slip washer 9 away from the nut 7 is in contact with and pressed by the blocking piece 5;

further, a limiting groove is formed in the side face of the outer end face of the limiting piece 2, and an anti-slip layer is arranged on the inner wall of the limiting groove; can effectually realize the anti-skidding spacing effect of this device through the combination of spacing recess and locating part 2, this device adopts asymmetric nut 1 shape structure to be convenient for more in traditional device carry out spacing to the anti-skidding effect of nut 1 from the top side to compare in traditional regular hexagon bolt, thereby can support the extruded effect through this device through the side and can effectually prevent this device and take place unexpected effect that loosens through the structure of spacing recess.

In this embodiment, can effectually improve the locking effect of bolt and nut through this device, compare in traditional device this device adoption non-axisymmetric structure can improve the side and block the effect of blockking to this device and block stability, thereby the effect of preventing unexpected pivoted of this device has been improved, the outer terminal surface rubber structure of antiskid spare 3 can effectually improve the bottom leakproofness of this device, thereby can reduce the inside and external circulation of air of counter bore, the stability of screw thread structure part has been guaranteed, can prevent through the structure of blocking spare 5 that nut 7 from taking place excessive rotation, when this device is in operating condition, through putting into the through-hole inside with connecting piece 4, thereby screw nut 7 from the bottom and make antiskid packing ring 9 and stop 5 position contact extrusion, through block the contact of piece to support at top installation side and lean on spacing piece 2 side positions this moment, thereby the effect of blockking to the rotation of nut 1 has been realized.

Example two

As shown in fig. 2-3, in the first embodiment, the outer end face side of the blocking member 5 is provided with a buffer layer, the outer end face of the buffer layer is provided with annular equidistant anti-skid lines, the anti-skid lines are in contact with the side face of the anti-skid washer 9, the thread rotation stability of the device can be effectively improved through the structure of the blocking member 5, the blocking effect can be gradually increased in the locking process of the device through the structure of the conical blocking member 5, the locking effect of the device is uniform, and meanwhile, the combination of the buffer layer and the anti-skid lines can prevent the anti-skid washer 9 from deforming and simultaneously effectively improve the service stability of the device.

The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims

1. The fastening bolt is characterized by comprising a nut (1), a limiting piece (2), an anti-slip piece (3), a connecting piece (4), a blocking piece (5), an external thread (6), a nut (7), an internal thread (8) and an anti-slip washer (9);

the side surface of the screw cap (1) is connected with the limiting piece (2); limiting protrusions are arranged on two sides of the limiting piece (2), anti-slip layers are arranged on the limiting piece (2) and the lateral surfaces of the outer end faces of the limiting protrusions, and the bottom of the nut (1) is connected with the connecting piece (4); the lateral surface of the outer end surface of the connecting piece (4) is connected with the anti-skid piece (3); one end of the connecting piece (4) far away from the anti-slip piece (3) is connected with the blocking piece (5); the blocking piece (5) is conical; one end of the blocking piece (5) far away from the connecting piece (4) is contacted with the external thread (6); the external thread (6) is arranged on the side surface of the outer end surface of the bottom of the connecting piece (4); the external thread (6) is in threaded connection with the internal thread (8); the internal thread (8) is connected with the inner wall of the nut (7), and the side surface of the nut (7) is connected with the anti-slip washer (9); the end of the anti-slip washer (9) far away from the nut (7) is in contact extrusion with the blocking piece (5).

2. The fastening bolt according to claim 1, wherein the limiting piece (2) is provided with a limiting groove on the side surface of the outer end surface, and an anti-slip layer is arranged on the inner wall of the limiting groove.

3. The fastening bolt according to claim 1, wherein a buffer layer is arranged on the side surface of the outer end surface of the blocking piece (5), annular equidistant anti-slip lines are arranged on the outer end surface of the buffer layer, and the anti-slip lines are in contact extrusion with the side surface of the anti-slip washer (9).

4. The fastening bolt according to claim 1, characterized in that the lateral surface of the outer end surface of the screw cap (1) is provided with anti-slip planes which are symmetrically arranged at both sides of the limiting piece (2).

5. A fastening bolt according to claim 1, characterized in that the centre of the top of the nut (1) is provided with a recess, the inside diameter of which is the same as the outside diameter of the external thread (6).

6. The fastening bolt according to claim 1, wherein a plurality of groups of rubber sealing rings are arranged on the outer end face of the anti-skid member (3), and the plurality of groups of rubber sealing rings are distributed on the side face of the outer end face of the connecting member (4) at equal intervals.