CN212079892U

CN212079892U - Bolt convenient to fasten and disassemble

Info

Publication number: CN212079892U
Application number: CN202020669071.1U
Authority: CN
Inventors: 王国峰; 姚国松; 王栋
Original assignee: Hangzhou Jiaxiang Gaoqiang Bolts Co ltd
Current assignee: Hangzhou Jiaxiang Gaoqiang Bolts Co ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2020-12-04
Anticipated expiration: 2030-04-27

Abstract

The utility model relates to a fastener technical field just discloses a bolt convenient to fasten and dismantle, including bolt and hexagon bolt head, bolt fixed connection is in the bottom of hexagon bolt head, and the bolt is hollow cylinder, and the circular slot has been seted up at hexagon bolt head top, and circular slot bottom and bolt intracavity intercommunication, and the screw thread has all been seted up to bolt intracavity top and the bottom in the bolt intracavity, and the intracavity of bolt is provided with second fastening bolt. This be convenient for fastening and dismantlement bolt, through setting up second fastening bolt, twist inside the mounting with second fastening bolt, secondary fastening and fixed effect have been realized, the effect of fastening has been improved, through setting up the circular slot, hexagonal groove and cross recess, the dismantlement and the installation that at least three kinds of instruments can carry out the secondary fastening to the second bolt have been realized, more selections are provided for staff's dismantlement, avoid under the condition that the instrument is short of, can't dismantle bolt and second fastening bolt, the dismantlement and efficiency have been improved, the degree of difficulty of work has been reduced.

Description

Bolt convenient to fasten and disassemble

Technical Field

The utility model relates to a fastener technical field specifically is a bolt is convenient for fasten and dismantle.

Background

One of the most common fasteners for bolts is the cylindrical threaded fastener with nut, and the fastener is composed of a head and a screw (a cylinder with external thread), and is matched with the nut to fasten and connect two parts with through holes. This form of connection is known as a bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so that the bolt connection belongs to detachable connection.

But traditional technique's bolt often designs fairly simplely, single screw thread through the outer wall realizes threaded connection to the inside thread groove of mounting, reaches the effect of a fastening, but this traditional technique's effect is relatively poor, traditional technique's bolt still has a problem in addition, just must adapt to assorted instrument and just can dismantle the bolt, can only use hexagonal instrument to dismantle like the hexagonal bolt head, has reduced dismantlement and efficiency, often exists because the instrument is short of, and can't dismantle the problem to the bolt. Therefore, in view of the above problems, it is desirable to provide a bolt that is convenient to fasten and dismount.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model is not enough to prior art, the utility model provides a bolt is convenient for fasten and dismantle, possess the effect that has improved the fastening, reach the secondary fastening and fix, improved advantages such as the degree of difficulty of dismantlement and efficiency and reduced work, the bolt that has solved traditional technique often designs fairly simplely, single screw thread through the outer wall realizes threaded connection to the inside thread groove of mounting, reach the effect of a fastening, but this traditional technique's effect is relatively poor, traditional technique's bolt still has a problem in addition, just must adapt to assorted instrument and just can dismantle the bolt, only can use hexagonal instrument to dismantle if the hexagonal bolt head, the dismantlement and efficiency have been reduced, often there is because the instrument lacks, and can't dismantle the problem to the bolt.

(II) technical scheme

For the above-mentioned effect that has improved the fastening, reach the secondary fastening and fixed, improved the purpose of dismantling and efficiency and reduced the degree of difficulty of work, the utility model provides a following technical scheme: a bolt convenient to fasten and disassemble comprises a bolt and a hexagon bolt head, wherein the bolt is fixedly connected to the bottom of the hexagon bolt head, the bolt is a hollow cylinder, the top of the hexagon bolt head is provided with a circular groove, the bottom of the circular groove is communicated with the inside of the bolt cavity, the top of the inside of the bolt cavity and the bottom of the inside of the bolt cavity are both provided with threads, the bottom of the inside of the circular groove and the communication part of the inside of the bolt cavity are also provided with threads, a second fastening bolt is arranged in the bolt cavity and consists of a second bolt, a limiting ring and a second bolt head, the limiting ring is a circular ring and is fixedly arranged on the outer wall of the second bolt, the limiting ring is positioned between the upper threads and the lower threads in the bolt cavity, the threads of the outer walls at the upper end and the lower end in the bolt cavity have a limiting effect on the limiting ring, the limiting ring can not pass through the threads, the second, the second bolt head is fixedly installed at the top end of the second bolt, the bottom end of the second bolt is conical, a hexagonal groove and a cross groove are formed in the top of the second bolt head, four cross ends of the cross groove are located on the outer side of the hexagonal groove respectively, the cross groove is communicated with the hexagonal groove, and the depth of the cross groove is half of that of the hexagonal groove.

Preferably, the outer walls of the bolt and the second bolt are both provided with thread grooves.

Preferably, the second bolt head is circular.

Preferably, four cross ends of the cross groove are respectively positioned at the outer sides of the hexagonal groove.

Preferably, the cross-shaped groove and the hexagonal groove are communicated with each other.

Preferably, the depth of the cross-shaped groove is half of the depth of the hexagonal groove.

(III) advantageous effects

Compared with the prior art, the utility model provides a be convenient for fasten and dismantle bolt possesses following beneficial effect:

1. this be convenient for fasten and dismantle bolt through setting up second fastening bolt, twists second fastening bolt inside the mounting, has realized secondary fastening and fixed effect, has improved the effect of fastening.

2. This bolt convenient to fasten and dismantle through setting up circular slot, hexagonal groove and cross recess, has realized that at least three kinds of instruments can carry out the dismantlement and the installation of secondary fastening to the second bolt, for staff's dismantlement provides more selections, avoids under the condition that the instrument is lacked, can't dismantle bolt and second fastening bolt, has improved dismantlement and efficiency, has reduced the degree of difficulty of work.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

fig. 2 is a sectional view of the present invention;

FIG. 3 is a schematic view of the bolt of the present invention separated from the second fastening bolt;

fig. 4 is an enlarged view of a portion a in fig. 3 according to the present invention.

In the figure: 1 bolt, 2 hexagonal bolt heads, 3 circular grooves, 4 threads, 5 second fastening bolts, 501 second bolts, 502 limiting rings, 503 second bolt heads, 6 hexagonal grooves and 7 cross grooves.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a bolt convenient to fasten and disassemble comprises a bolt 1 and a hexagon bolt head 2, the bolt 1 is fixedly connected with the bottom of the hexagon bolt head 2, the bolt 1 is a hollow cylinder, the top of the hexagon bolt head 2 is provided with a circular groove 3, the bottom of the circular groove 3 is communicated with the cavity of the bolt 1, the top of the cavity of the bolt 1 and the bottom of the cavity of the bolt 1 are both provided with threads 4, the communicating part of the bottom of the cavity of the circular groove 3 and the cavity of the bolt 1 is also provided with threads 4, the cavity of the bolt 1 is internally provided with a second fastening bolt 5, the second fastening bolt 5 is composed of a second bolt 501, a limiting ring 502 and a second bolt head 503, the limiting ring 502 is a circular ring, the limiting ring 502 is fixedly arranged on the outer wall of the second bolt 501, the limiting ring 502 is positioned between the upper threads 4 and the lower threads 4 in the cavity of the bolt 1, the threads 4 on the upper, the second bolt 501 is in threaded connection with the thread 4, the top end of the second bolt 501 extends out of the cavity of the circular groove 3, the second bolt head 503 is circular, the second bolt head 503 is fixedly mounted at the top end of the second bolt 501, the bottom end of the second bolt 501 is conical, a hexagonal groove 6 and a cross groove 7 are formed in the top of the second bolt head 503, four cross ends of the cross groove 7 are respectively located on the outer sides of the hexagonal groove 6, the cross groove 7 is communicated with the hexagonal groove 6, the depth of the cross groove 7 is half of that of the hexagonal groove 6, and the specific shapes of the cross groove 7 and the hexagonal groove 6 are shown in fig. 4.

When in use, the hexagonal bolt head 2 is fixed by using a tool, the bolt 1 is screwed into the fastening threaded hole of the corresponding fixing piece in a rotating manner, the second bolt head 503 is fixed by the tool by arranging the second fastening bolt 5, or the second bolt head 503 is screwed by inserting the corresponding tool into the corresponding hexagonal groove 6 or the cross groove 7, so that the second bolt 501 rotates towards the bottom in the cavity of the bolt 1, the second bolt 501 is more favorably introduced into the fixing piece by arranging the bottom of the second bolt 501 in a conical shape, therefore, the second bolt 501 is introduced into the fixing piece by rotating the second bolt head 503, compared with the bolt 1, the length of the second bolt 501 extending out is longer than the length of the bolt 1, secondary fastening is realized, and by arranging the circular groove 3, the hexagonal groove 6 and the cross groove 7, the dismounting and mounting of the second fastening bolt 5 can be realized by at least three tools, when the second fastening bolt 5 is disassembled, the second bolt head 503 is rotated reversely by a tool to extend out of the cavity of the circular groove 3, after the second bolt 501 rises from the cavity of the bolt 1 for a distance, the limiting ring 502 is supported by the thread 4 on the upper side in the cavity of the bolt 1, so that the second bolt 501 cannot rise, and when the second bolt head 503 is rotated reversely, the bolt 1 and the second bolt 501 rotate out of the fixing part synchronously, similarly, a wrench or other tools can be used for rotating the hexagonal bolt head 2, so that the bolt 1 rotates out of the fixing part, more choices are provided for disassembling of workers, the problem that the bolt 1 and the second fastening bolt 5 cannot be disassembled under the condition of lack of tools is avoided, the disassembling and the efficiency are improved, and the difficulty in working is reduced.

The working steps are as follows:

the first step is as follows: the hexagonal bolt head 2 is fixed by using a tool, and the bolt 1 is screwed into the fastening threaded hole of the corresponding fixing piece by rotating.

The second step is that: the second bolt head 503 is fixed by a tool, or the second bolt head 503 is screwed by inserting a corresponding tool into the corresponding hexagonal groove 6 or cross groove 7, so that the second bolt 501 rotates toward the bottom of the cavity of the bolt 1.

The third step: through circular slot 3, hexagonal groove 6 and cross recess 7, realized that at least three kinds of instruments can carry out the dismantlement and the installation of secondary fastening to second fastening bolt 5, when dismantling second fastening bolt 5, through instrument antiport second bolt head 503, make it stretch out from circular slot 3 intracavity.

The fourth step: after the second bolt 501 rises for a certain distance from the cavity of the bolt 1, the limit ring 502 is abutted by the thread 4 on the upper side in the cavity of the bolt 1, so that the second bolt 501 cannot rise, and then the second bolt head 503 rotates in the opposite direction, so that the bolt 1 and the second bolt 501 rotate out of the fixing part synchronously, and similarly, a wrench or other tools can be used for rotating the hexagonal bolt head 2, so that the bolt 1 rotates out of the fixing part.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a be convenient for fasten and dismantle bolt, includes bolt (1) and hexagonal bolt head (2), and bolt (1) fixed connection is in the bottom of hexagonal bolt head (2), its characterized in that: the bolt (1) is a hollow cylinder, the top of the hexagon bolt head (2) is provided with a circular groove (3), the bottom of the circular groove (3) is communicated with the cavity of the bolt (1), the top of the cavity of the bolt (1) and the bottom of the cavity of the bolt (1) are both provided with threads (4), the bottom of the cavity of the circular groove (3) and the communicated part of the cavity of the bolt (1) are also provided with threads (4), the cavity of the bolt (1) is internally provided with a second fastening bolt (5), the second fastening bolt (5) consists of a second bolt (501), a limiting ring (502) and a second bolt head (503), the limiting ring (502) is a circular ring, the limiting ring (502) is fixedly arranged on the outer wall of the second bolt (501), the limiting ring (502) is positioned between the upper threads (4) and the lower threads (4) in the cavity of the bolt (1), the second bolt (501) is in threaded connection with the threads (4), and the top of the, the second bolt head (503) is circular, and the second bolt head (503) is fixedly arranged at the top end of the second bolt (501).

2. A bolt for facilitating fastening and dismounting of a bolt according to claim 1, wherein: the top of the second bolt head (503) is provided with a hexagonal groove (6) and a cross groove (7).

3. A bolt for facilitating fastening and dismounting of a bolt according to claim 2, wherein: four cross ends of the cross groove (7) are respectively positioned on the outer sides of the hexagonal grooves (6), and the cross groove (7) is communicated with the hexagonal grooves (6).

4. A bolt for facilitating fastening and dismounting of a bolt according to claim 2, wherein: the depth of the cross groove (7) is half of that of the hexagonal groove (6).

5. A bolt for facilitating fastening and dismounting of a bolt according to claim 1, wherein: the bottom end of the second bolt (501) is conical.