CN211639738U - Tool for quickly assembling and disassembling stud bolt - Google Patents
Tool for quickly assembling and disassembling stud bolt Download PDFInfo
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- CN211639738U CN211639738U CN201922295502.2U CN201922295502U CN211639738U CN 211639738 U CN211639738 U CN 211639738U CN 201922295502 U CN201922295502 U CN 201922295502U CN 211639738 U CN211639738 U CN 211639738U
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- thread body
- hole
- internal thread
- stud
- screw hole
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Abstract
The utility model discloses an instrument that quick dress, tear double-end bolt down used mainly comprises the internal thread body and the external screw thread body, and internal thread body axle center portion is provided with big screw hole and little screw hole, is provided with the technology groove between big screw hole and little screw hole, and the external portion of internal thread is provided with outer hexagonal, and external screw thread body head is equipped with the hexagon head, is provided with the shoulder hole on the external screw thread body center axis, is provided with the steel ball on the shoulder hole. The utility model discloses can lock fast or dismantle stud to reach the requirement of pretightning force, install and remove convenient operation, it is efficient, withdraw from the instrument also convenient easy, can not cause the destruction to the precision of bolt simultaneously. Simple structure, easy manufacture, low cost, long service life, no damage to threads and capability of improving assembly efficiency.
Description
Technical Field
The utility model relates to a quick dress, tear stud's instrument open for quick locking or dismantle stud, assembly and extracting tool technical field who belongs to mechanical fastener.
Background
The double-headed bolt is usually used as a fastener on an assembly production line, the assembling of the double-headed bolt is usually carried out by locking the double-headed bolt by a double nut and then tightening the double-headed bolt by a metal plate hand to achieve a pre-tightening force, during assembling, firstly locking the double nut on the double-headed bolt, screwing the double-headed bolt into a fastener to be fastened, screwing the nut on the double-headed bolt by the metal plate hand to achieve the pre-tightening force, then screwing the double nut and the fastener to be fastened to withdraw from the nut on the double-headed bolt firstly and then withdraw from the nut on the double-headed bolt. When the double nuts are disassembled, the double nuts are firstly locked on the double-headed bolts, the nuts below the double nuts are reversely rotated by a wrench to drive the double-headed bolts to withdraw from the member to be fastened, and then the double nuts are reversely rotated by the wrench to withdraw from the nuts above and then withdraw from the nuts below. The assembly and disassembly are operated by screwing the double nuts, so that the contact surface of the double nuts is large, the friction force is large, the operation is difficult, and the assembly and disassembly efficiency is low. Although tools for dismounting and mounting the stud bolts are available in the market, the structure is complex, the cost is high, the assembly efficiency is not high, and the precision of the stud bolts can be damaged sometimes. Therefore, it is practical to provide an attaching and detaching tool which is easy to operate and has high attaching and detaching efficiency.
Disclosure of Invention
The utility model aims at providing an instrument that quick dress, tear stud usefulness open to what exist when overcoming the tradition and installing and removing stud, the difficult operation installs and removes the problem of inefficiency.
The utility model provides an instrument that quick dress, tear double-end bolt down used, the main internal thread body and the external screw thread body of constituteing of mainly by, internal thread body axle center portion is provided with big screw hole and little screw hole, is provided with the technology groove between big screw hole and little screw hole, and the external portion of internal thread is provided with outer hexagonal, and external screw thread body head is equipped with the hexagon head, is provided with the shoulder hole on the external screw thread body central axis, is provided with the steel ball on the shoulder hole.
Adopt above-mentioned measure the utility model discloses, can lock fast or dismantle stud to reach the requirement of pretightning force, install and remove convenient operation, it is efficient, it is also convenient easy to withdraw from the instrument, can not cause the destruction to the precision of bolt simultaneously. Simple structure, easy manufacture, low cost, long service life, no damage to threads and capability of improving assembly efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the internal thread body of the present invention;
fig. 3 is a schematic structural view of the external thread body of the present invention;
description of reference numerals: the steel ball stud comprises an internal thread body 1, a steel ball 2, an external thread body 3, a stepped hole 4, a large threaded hole 5, a process groove 6, a small threaded hole 7 and a stud 8.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 3, the utility model is composed of an internal thread body 1, a steel ball 2 and an external thread body 3. As shown in figures 1 and 2, the external part of the internal thread body 1 is arranged into an external hexagon, which is convenient for matching tools such as wrenches. The central axis of the internal thread body 1 is respectively provided with a big threaded hole 5 and a small threaded hole 7, the big threaded hole 5 is larger than the small threaded hole 7, and the two threaded holes are separated by a process groove 6. The large threaded hole 5 is matched with the thread of the external thread body 3, and the small threaded hole 7 is matched with a stud bolt 8 to be assembled.
As shown in figure 1 and figure 3, the head of the external thread body 3 is provided with a hexagonal head which is convenient to be matched with a metal plate. The threaded portion of the male screw body 3 is engaged with the large threaded hole 5 of the female screw body 1. The stepped hole 4 is arranged on the central axis of the external thread body 3, the large hole of the stepped hole 4 is tightly matched with the steel ball 2, half of the steel ball 2 is just arranged in the stepped hole 4, and half of the steel ball 2 is exposed out of the stepped hole 4, the steel ball 2 has the function of reducing the friction force with the stud 8 to be assembled, so that the utility model discloses do not influence the pretightening force of the assembled stud 8 when the assembly is finished and the stud 8 is withdrawn; because the steel ball 2 is a wearing part and the small hole of the stepped hole 4 is a process hole for replacing the steel ball, the service life of the tool is prolonged.
The screwing directions of the large threaded hole 5 and the small threaded hole 7 on the internal thread body 1 are the same when the stud is assembled; when the double-head bolt is used for disassembling the double-head bolt, the screwing directions of the large threaded hole 5 and the small threaded hole 7 on the internal threaded body 1 are opposite, so that in actual operation, the internal threaded body 1 with the same screwing direction of the large threaded hole 5 and the small threaded hole 7 and the internal threaded body 1 with the opposite screwing directions of the large threaded hole 5 and the small threaded hole 7 are matched for use: .
The utility model discloses a work like this: when the stud bolt is assembled, the internal thread body 1 with the same screwing direction of the large threaded hole 5 and the small threaded hole 7 is used, the external thread body 3 is firstly matched with the internal thread body 1, the external thread body 3 is screwed into the large threaded hole 5 of the internal thread body 1, the hexagon head of the external thread body 3 is installed on a sleeve of a wrench, the stud bolt 8 to be assembled is screwed into the small threaded hole 7 of the internal thread body 1, then the stud bolt 8 to be assembled is aligned to the corresponding threaded hole, the hexagon head of the external thread body 3 is screwed up by the wrench to reach the required torque, the internal thread body 1 is fixed by the other wrench, the external thread body 3 is loosened and taken out by reversely rotating the wrench, and finally the internal thread body 1 is screwed out by reversely rotating the wrench to complete the assembly of one stud bolt.
When the stud is disassembled, the internal thread body 1 with the opposite screwing directions of the large threaded hole 5 and the small threaded hole 7 is used, the external thread body 3 is firstly matched with the internal thread body 1, the external thread body 3 is reversely screwed into the large threaded hole 5 of the internal thread body 1, the hexagonal head of the external thread body 3 is installed on the sleeve of the wrench again, the stud 8 to be disassembled is screwed into the small threaded hole 7 of the internal thread body 1, the hexagonal head of the external thread body 3 is continuously rotated in the screwing direction, the stud 8 to be disassembled can be unscrewed, at the moment, the external hexagonal head of the internal thread body 1 is clamped by another opening wrench, the external thread body 3 is reversely unscrewed, the external thread body 3 and the internal thread body 1 are separated from the stud, and the disassembly of the stud can be completed.
Claims (4)
1. The utility model provides an instrument of stud is adorned fast, torn open, mainly comprises the internal thread body (1) and the external thread body (3), characterized by internal thread body (1) axle center portion is provided with big screw hole (5) and little screw hole (7), be provided with technology groove (6) between big screw hole (5) and little screw hole (7), internal thread body (1) outside is provided with outer hexagonal, external thread body (3) head is equipped with the hexagon head, be provided with shoulder hole (4) on external thread body (3) center pin line, be provided with steel ball (2) on shoulder hole (4).
2. A tool for quick stud attachment and detachment according to claim 1, wherein the large threaded hole (5) and the small threaded hole (7) have the same thread direction.
3. The tool for quickly assembling and disassembling the stud bolt according to claim 1, wherein: the thread directions of the large threaded hole (5) and the small threaded hole (7) are opposite.
4. The tool for quickly assembling and disassembling the stud bolt according to claim 1, wherein the large hole of the stepped hole (4) is tightly matched with the steel ball (2), half of the steel ball (2) is just assembled in the stepped hole (4), and half of the steel ball (2) is exposed out of the stepped hole (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922295502.2U CN211639738U (en) | 2019-12-19 | 2019-12-19 | Tool for quickly assembling and disassembling stud bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922295502.2U CN211639738U (en) | 2019-12-19 | 2019-12-19 | Tool for quickly assembling and disassembling stud bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211639738U true CN211639738U (en) | 2020-10-09 |
Family
ID=72697243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922295502.2U Active CN211639738U (en) | 2019-12-19 | 2019-12-19 | Tool for quickly assembling and disassembling stud bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211639738U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114310790A (en) * | 2021-12-30 | 2022-04-12 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Assembling and disassembling device and method for interference thread anti-loosening screw sleeve |
-
2019
- 2019-12-19 CN CN201922295502.2U patent/CN211639738U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114310790A (en) * | 2021-12-30 | 2022-04-12 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Assembling and disassembling device and method for interference thread anti-loosening screw sleeve |
| CN114310790B (en) * | 2021-12-30 | 2023-09-22 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Assembling and disassembling device and method for interference thread anti-loosening screw sleeve |
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