CN213393078U

CN213393078U - Wear-resistant bolt

Info

Publication number: CN213393078U
Application number: CN202022402488.4U
Authority: CN
Inventors: 胡月
Original assignee: Shenyang Tianhang Precision Machinery Co ltd
Current assignee: Shenyang Tianhang Precision Machinery Co ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-06-08
Anticipated expiration: 2030-10-26

Abstract

The utility model discloses a stand wear and tear bolt, including nut and bolt body, the top fixed connection of nut and bolt body, wear-resisting cover has been cup jointed in the outside slip of bolt body, a plurality of fixed blocks of top fixedly connected with of wear-resisting cover, the bottom of nut is equipped with the fixed slot that corresponds with the fixed block, sliding insert in the fixed slot and be equipped with the kelly, be equipped with the draw-in groove that corresponds with the kelly on the fixed block, a plurality of sliders of fixedly connected with on the inner wall of wear-resisting cover, be equipped with the spout that corresponds with the slider on the outer wall of bolt body, fixedly connected with slide bar in the spout, be equipped with the sliding opening that corresponds with the slide bar on the slider. The utility model discloses in through the setting of wear-resisting cover, can effectually protect the outside of bolt body to guarantee the life of bolt.

Description

Wear-resistant bolt

Technical Field

The utility model relates to a bolt technical field especially relates to a stand wear and tear bolt.

Background

Bolts are quite common in everyday life. The bolt with the large size is required in large equipment due to the requirement and the stable connection strength, the traditional bolt is composed of a bolt body and a bolt head, and the outer peripheral wall of the bolt body is provided with external threads and is connected with screw holes in workpieces in a threaded mode to achieve a fixing effect.

But current bolt exterior structure is comparatively simple, and the outside of bolt lacks certain abrasionproof and decreases the structure to influence the life of bolt.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art bolt exterior structure comparatively simply, the outside of bolt lacks the problem of certain abrasionproof decreases the structure, and the stand wear and tear bolt that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a stand wear and tear bolt, includes nut and bolt body, the top fixed connection of nut and bolt body, the outside slip of bolt body has cup jointed wear-resisting cover, a plurality of fixed blocks of top fixedly connected with of wear-resisting cover, the bottom of nut is equipped with the fixed slot that corresponds with the fixed block, it is equipped with the kelly to slide to insert in the fixed slot, be equipped with the draw-in groove that corresponds with the kelly on the fixed block, a plurality of sliders of fixedly connected with on the inner wall of wear-resisting cover, be equipped with the spout that corresponds with the slider on the outer wall of bolt body, fixedly connected with slide bar in the spout, be equipped with the sliding opening that corresponds with the.

Preferably, a clamping sleeve is fixedly sleeved at one end, close to the fixed block, of the clamping rod, and a pull rod is fixedly connected at one end, far away from the clamping sleeve, of the clamping rod.

Preferably, the clamping rod is sleeved with a spring, and two ends of the spring are fixedly connected with the clamping sleeve and the inner wall of the fixing groove respectively.

Preferably, the fixed block is fixedly connected with the outer wall of the wear-resistant sleeve through a wedge-shaped block.

Preferably, the outer wall of the wear-resistant sleeve is fixedly sleeved with a rubber sleeve.

Preferably, a plurality of steel balls are connected in the sliding opening in a sliding mode, and the edges of the steel balls are in contact with the sliding rod.

Has the advantages that:

1. through the arrangement of the wear-resistant sleeve, the outer part of the bolt body can be effectively fixed, meanwhile, the position of the wear-resistant sleeve can be conveniently fixed through the arrangement of the clamping rod, and meanwhile, the swinging of the wear-resistant sleeve can be effectively prevented through the arrangement of the sliding rod and the sliding block;

2. the setting of spring can play certain elastic support effect to the kelly, and the steel ball can reduce the frictional force between slider and the slide bar simultaneously, and the wedge can strengthen the connection stability between fixed block and the wear-resisting cover outer wall simultaneously.

Drawings

Fig. 1 is a schematic structural view of a wear-resistant bolt according to the present invention;

fig. 2 is a schematic structural view of a portion a of fig. 1.

In the figure: the bolt comprises a nut 1, a bolt body 2, a wear-resistant sleeve 3, a fixing block 4, a clamping rod 5, a sliding block 6, a sliding rod 7, a clamping sleeve 8, a pull rod 9, a spring 10, a wedge-shaped block 11, a rubber sleeve 12 and a steel ball 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a wear-resistant bolt comprises a nut 1 and a bolt body 2, wherein the nut 1 is fixedly connected with the top of the bolt body 2, a wear-resistant sleeve 3 is sleeved outside the bolt body 2 in a sliding manner to protect the bolt body 2, and a plurality of fixed blocks 4 are fixedly connected with the top of the wear-resistant sleeve 3 and used for supporting the wear-resistant sleeve 3;

in the embodiment, the fixed block 4 is fixedly connected with the outer wall of the wear-resistant sleeve 3 through the wedge-shaped block 11, so that the connection stability between the fixed block 4 and the wear-resistant sleeve 3 is enhanced, the rubber sleeve 12 is fixedly sleeved on the outer wall of the wear-resistant sleeve 3, the friction force outside the wear-resistant sleeve is enhanced, and the bottom of the nut 1 is provided with a fixed groove corresponding to the fixed block 4;

in the embodiment, the clamping rod 5 is slidably inserted into the fixing groove and used for fixing the fixing block 4, a clamping groove corresponding to the clamping rod 5 is formed in the fixing block 4, a clamping sleeve 8 is fixedly sleeved at one end, close to the fixing block 4, of the clamping rod 5, so that the clamping rod 5 is prevented from falling off from the fixing groove, and a pull rod 9 is fixedly connected at one end, far away from the clamping sleeve 8, of the clamping rod 5, so that the clamping rod 5 can be conveniently pulled;

in the embodiment, the clamping rod 5 is sleeved with the spring 10 to elastically support the clamping rod 5 to a certain extent, two ends of the spring 10 are fixedly connected with the clamping sleeve 8 and the inner wall of the fixing groove respectively, the inner wall of the wear-resistant sleeve 3 is fixedly connected with the plurality of sliding blocks 6 for supporting the wear-resistant sleeve 3, and the outer wall of the bolt body 2 is provided with sliding grooves corresponding to the sliding blocks 6;

in the embodiment, a sliding rod 7 is fixedly connected in the sliding groove and used for supporting the sliding block 6, a sliding opening corresponding to the sliding rod 7 is formed in the sliding block 6, a plurality of steel balls 13 are connected in the sliding opening in a sliding mode, the edge of each steel ball 13 is in contact with the sliding rod 7, and friction force between the sliding rod 7 and the inner wall of the sliding opening is reduced.

In the embodiment, the outer part of the bolt body 2 can be effectively fixed through the arrangement of the wear-resistant sleeve 3, meanwhile, the position of the wear-resistant sleeve 3 can be conveniently fixed through the arrangement of the clamping rod 5, and meanwhile, the swinging of the wear-resistant sleeve 3 can be effectively prevented through the arrangement of the sliding rod 7 and the sliding block 6;

in this embodiment, the spring 10 is arranged to elastically support the clamping rod 5, the steel ball 13 is arranged to reduce the friction between the sliding block 6 and the sliding rod 7, and the wedge block 11 is arranged to enhance the connection stability between the fixing block 4 and the outer wall of the wear-resistant sleeve 3.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a stand wear and tear bolt, includes nut (1) and bolt body (2), the top fixed connection of nut (1) and bolt body (2), its characterized in that: the outside slip of bolt body (2) has cup jointed wear-resisting cover (3), a plurality of fixed blocks of top fixedly connected with (4) of wear-resisting cover (3), the bottom of nut (1) is equipped with the fixed slot that corresponds with fixed block (4), it is equipped with kelly (5) to slide to insert in the fixed slot, be equipped with the draw-in groove that corresponds with kelly (5) on fixed block (4), a plurality of sliders of fixedly connected with (6) on the inner wall of wear-resisting cover (3), be equipped with the spout that corresponds with slider (6) on the outer wall of bolt body (2), fixedly connected with slide bar (7) in the spout, be equipped with the sliding opening that corresponds with slide bar (7) on slider (6).

2. A wear resistant bolt as defined in claim 1 wherein: clamping sleeve (8) have been cup jointed to kelly (5) one end that is close to fixed block (4), one end fixedly connected with pull rod (9) that cutting sleeve (8) were kept away from in kelly (5).

3. A wear-resistant bolt as claimed in claim 1 or 2, wherein: the clamp rod (5) is sleeved with a spring (10), and two ends of the spring (10) are fixedly connected with the clamp sleeve (8) and the inner wall of the fixing groove respectively.

4. A wear resistant bolt as defined in claim 1 wherein: the fixed block (4) is fixedly connected with the outer wall of the wear-resistant sleeve (3) through a wedge-shaped block (11).

5. A wear resistant bolt as defined in claim 1 wherein: the outer wall of the wear-resistant sleeve (3) is fixedly sleeved with a rubber sleeve (12).

6. A wear resistant bolt as defined in claim 1 wherein: a plurality of steel balls (13) are connected in the sliding opening in a sliding mode, and the edges of the steel balls (13) are in contact with the sliding rod (7).