CN220488052U

CN220488052U - Novel hexagon head arc section of jurisdiction bolt

Info

Publication number: CN220488052U
Application number: CN202321874728.8U
Authority: CN
Inventors: 李博武; 魏世龙; 乔董
Original assignee: Hebei Meiru Fastener Manufacturing Co ltd
Current assignee: Hebei Meiru Fastener Manufacturing Co ltd
Priority date: 2023-07-17
Filing date: 2023-07-17
Publication date: 2024-02-13
Anticipated expiration: 2033-07-17

Abstract

The utility model discloses a novel hexagonal arc-shaped duct piece bolt in the field of duct piece bolts, which comprises an arc-shaped bolt body, wherein an end stud is integrally formed at one end of the arc-shaped bolt body, and a locking nut is connected to the periphery of the end stud through threads. According to the utility model, after the arc-shaped duct piece bolt is used for locking the duct piece, the threaded block is rotated by the hexagonal wrench, so that the expanding conical block can be pushed to move in the conical hole, and then the open slot on the end stud can be expanded, a circumferential acting force is applied to the locking nut, so that a full anti-thread-withdrawal effect can be achieved, the anti-thread-withdrawal effect is better, the locking operation is more convenient and faster, and the locking device is extremely practical and convenient; through setting up the elastic sleeve that comprises excircle leather sheath and terminal surface leather collar at the galvanizing coat periphery, can effectually avoid this bolt to collide when transportation or installation and lead to external structure impaired, play better guard action, the effect is splendid.

Description

Novel hexagon head arc section of jurisdiction bolt

Technical Field

The utility model relates to the field of segment bolts, in particular to a novel hexagon head arc segment bolt.

Background

The shield segment of the innermost layer of the tunnel is shouldered to support the tunnel and resist soil pressure and other works, the quality of the shield segment is directly related to the safety of the whole tunnel, segment bolts are needed to be used for combining the important segments, and the segment bolts are arc-shaped to be used for assembling the segments in order to conform to the radian of the segments.

However, when the existing duct piece bolt is installed, the anti-loosening is performed in a mode of adding an elastic pad, the original shape structure of the threaded connection is not changed in the anti-loosening process, the anti-loosening effect is not good enough, and when the duct piece bolt is transported or installed, the external structure is damaged easily due to collision, so that the connection strength is affected. Therefore, a novel hexagonal head arc segment bolt is provided by a person skilled in the art to solve the problems set forth in the background art.

Disclosure of Invention

The utility model aims to provide a novel hexagon head arc-shaped duct piece bolt so as to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a novel hexagon head arc section of jurisdiction bolt, includes the arc bolt body, arc bolt body one end integrated into one piece has the tip double-screw bolt, the tip double-screw bolt periphery has lock nut through threaded connection, the open slot has been seted up on the tip double-screw bolt, the screw hole has been seted up at tip double-screw bolt tip central point position, the screw hole bottom is the bell mouth, threaded hole inside has the screw thread piece through threaded connection, screw thread piece tip be provided with bell mouth complex expansion taper piece.

As a further scheme of the utility model: the taper of the expansion conical block is the same as that of the conical hole, and the other end of the threaded hole is provided with a hexagonal hole.

As a further scheme of the utility model: the other end part of the arc-shaped bolt body is integrally formed with an end part limiting hexagonal block.

As a further scheme of the utility model: the arc bolt body comprises an arc column, a galvanized layer arranged on the periphery of the arc column and an elastic leather sheath arranged on the periphery of the galvanized layer.

As a further scheme of the utility model: the elastic leather sheath comprises an outer circle leather sheath and an end face leather collar, the outer circle leather sheath and the end face leather collar are integrally formed, the outer circle leather sheath is wrapped on the periphery of a galvanized layer of the arc-shaped column, and the end face leather collar is close to the end limiting six square blocks.

As a further scheme of the utility model: and the periphery of the end stud is positioned at the end of the elastic leather sheath, and a buckling sleeve is arranged at the periphery of the end stud.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, after the arc-shaped duct piece bolt is used for locking the duct piece, the threaded block is rotated by the hexagonal wrench, so that the expansion conical block can be pushed to move in the conical hole, the open slot on the end stud can be further expanded, a circumferential acting force is applied to the locking nut, a full anti-thread-withdrawal effect can be achieved, the anti-thread-withdrawal effect is better, the locking operation is more convenient and quick, and the locking device is extremely practical and convenient

2. According to the utility model, the elastic sleeve consisting of the outer circle leather sleeve and the end face leather ring is arranged on the periphery of the galvanized layer, so that the damage of an external structure caused by collision during transportation or installation of the bolt can be effectively avoided, better protection effect is achieved, and the effect is excellent.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged view of a portion of the utility model at A in FIG. 1;

FIG. 3 is an enlarged view of a portion of the utility model at B in FIG. 1;

FIG. 4 is a cross-sectional view of the open slot portion of the present utility model.

In the figure: 1. an arc bolt body; 101. an arc column; 102. a zinc plating layer; 103. an elastic leather sheath; 1031. an outer circular leather sheath; 1032. an end face apron; 2. end limiting six squares; 3. a lock nut; 4. an end stud; 5. an open slot; 6. a buckling sleeve; 7. a threaded hole; 8. a tapered bore; 9. a screw block; 901. a hexagonal hole; 902. expanding the conical block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, in the embodiment of the utility model, a novel hexagonal arc segment bolt comprises an arc bolt body 1, an end stud 4 is integrally formed at one end of the arc bolt body 1, a locking nut 3 is connected to the periphery of the end stud 4 through threads, an open slot 5 is formed in the end stud 4, a threaded hole 7 is formed in the center of the end stud 4, a conical hole 8 is formed at the bottom of the threaded hole 7, a threaded block 9 is connected to the inside of the threaded hole 7 through threads, the threaded block 9 is of a cylindrical structure, and an expansion conical block 902 matched with the conical hole 8 is arranged at the end of the threaded block 9.

Wherein, the taper of the expansion taper block 902 is the same as the taper of the taper hole 8, and the other end of the threaded hole 7 is provided with a hexagonal hole 901.

Through adopting above-mentioned technical scheme, can be after locking the section of jurisdiction through this arc section of jurisdiction bolt, rotate screw thread piece 9 through the hexagonal spanner, can promote the tight toper piece 902 of expanding at the inside motion of bell mouth 8, and then can prop open slot 5 on the tip double-screw bolt 4, apply a circumference effort for lock nut 3, can play abundant anti-back silk effect, anti-back silk effect is better, and locking operation gets up convenient and fast more moreover, and is extremely practical convenient.

The other end part of the arc-shaped bolt body 1 is integrally formed with an end part limiting six square block 2, and the limiting six square block can realize locking and limiting between the end part of the arc-shaped bolt body 1 and a duct piece.

The arc bolt body 1 comprises an arc column 101, a galvanized layer 102 arranged on the periphery of the arc column 101 and an elastic leather sheath 103 arranged on the periphery of the galvanized layer 102, wherein the elastic leather sheath 103 comprises an outer circle leather sheath 1031 and an end face leather ring 1032, the outer circle leather sheath 1031 and the end face leather ring 1032 are integrally formed, the outer circle leather sheath 1031 is wrapped on the periphery of the galvanized layer 102 of the arc column 101, and the end face leather ring 1032 is adjacent to the end limit six-square 2.

Through adopting above-mentioned technical scheme, through setting up the elastic sleeve that comprises excircle leather sheath 1031 and terminal surface leather collar 1032 at galvanized layer 102 periphery, can effectually avoid this bolt to collide when transportation or installation and lead to the external structure impaired, play better guard action, the effect is splendid.

In this embodiment, the end stud 4 is provided with a buckling sleeve 6 at the end of the elastic leather sheath 103, and the buckling sleeve 6 can protect the end of the open slot 5.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. Novel hexagon head arc section of jurisdiction bolt, including arc bolt body (1), its characterized in that: the arc-shaped bolt comprises an arc-shaped bolt body (1), wherein an end stud (4) is integrally formed at one end of the arc-shaped bolt body, a lock nut (3) is arranged on the periphery of the end stud (4) in a threaded manner, an open slot (5) is formed in the end stud (4), a threaded hole (7) is formed in the center of the end stud (4), a conical hole (8) is formed in the bottom of the threaded hole (7), a threaded block (9) is arranged in the threaded hole (7) in a threaded manner, and an expansion conical block (902) matched with the conical hole (8) is arranged at the end of the threaded block (9).

2. The novel hexagonal head arc segment bolt of claim 1, wherein: the taper of the expansion conical block (902) is the same as that of the conical hole (8), and a hexagonal hole (901) is formed in the other end of the threaded hole (7).

3. The novel hexagonal head arc segment bolt of claim 1, wherein: the other end part of the arc-shaped bolt body (1) is integrally formed with an end part limiting hexagonal block (2).

4. A novel hexagonal head arc segment bolt according to claim 3, wherein: the arc bolt body (1) comprises an arc column (101), a galvanized layer (102) arranged on the periphery of the arc column (101) and an elastic leather sheath (103) arranged on the periphery of the galvanized layer (102).

5. The novel hexagonal head arc segment bolt of claim 4, wherein: the elastic leather sheath (103) comprises an outer circular leather sheath (1031) and an end surface leather collar (1032), the outer circular leather sheath (1031) and the end surface leather collar (1032) are integrally formed, the outer circular leather sheath (1031) is wrapped on the periphery of a galvanized layer (102) of the arc-shaped column (101), and the end surface leather collar (1032) is closely adjacent to the end limiting six-square block (2).

6. The novel hexagonal head arc segment bolt of claim 5, wherein: the periphery of the end stud (4) is positioned at the end of the elastic leather sheath (103) and is provided with a buckling sleeve (6).