CN209164338U - Bolt thread and nut-protecting sleeve - Google Patents
Bolt thread and nut-protecting sleeve Download PDFInfo
- Publication number
- CN209164338U CN209164338U CN201822014559.6U CN201822014559U CN209164338U CN 209164338 U CN209164338 U CN 209164338U CN 201822014559 U CN201822014559 U CN 201822014559U CN 209164338 U CN209164338 U CN 209164338U
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- Prior art keywords
- nut
- groove
- protective cover
- screw thread
- cover
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
Bolt thread and nut-protecting sleeve.In the prior art, it is damaged if protection is cased at one, needs entire protective case to be replaced, especially when to biggish protective case is replaced, waste of material is serious, and sealing performance is not very good, and some tiny class impurity are easily accessible in protective case.The utility model composition includes screw thread protection cover (1) and nut protective cover (2), the nut protective cover is the hollow structure coincideing with nut shape, there are screw hole (3) at the central upper portion of the nut protective cover, the upper surface of the nut protective cover has groove (4), the groove sidewall height in the outside of the groove is greater than the groove sidewall height on the inside of it, the screw thread protection cover is boss shape, the lower part of the screw thread protection cover is mounted in the groove, the lower end of the nut protective cover has gasket groove (5), seal washer (6) are installed in the gasket groove.The utility model is used for bolt thread and nut-protecting sleeve.
Description
Technical field:
The utility model relates to a kind of bolt thread and nut-protecting sleeves.
Background technique:
With the higher and higher parametrization of industrial equipment, the requirement of fastener is also higher and higher, but in transport, carrying and installation
In debugging process, the threaded portion of nut and top bolt is all exposed to be very easy to collide with, damage or oxidation corrosion in the sky,
It influences to use, thus the protection of threaded fastener is increasingly taken seriously recently；In the prior art, integral type is typically used
Protective case exposed bolt and nut portion are protected, if protection be cased at one damage, it is necessary to entire protective case
It is replaced, especially when to biggish bolt and nut-protecting sleeve is replaced, waste of material is serious, and sealing performance not right and wrong
Chang Hao, some tiny class impurity are easily accessible in protective case, lead to the scuffing of screw thread.
Utility model content:
The purpose of the utility model is to provide a kind of bolt thread and nut-protecting sleeves.
Above-mentioned purpose is realized by following technical scheme:
A kind of bolt thread and nut-protecting sleeve, composition includes: screw thread protection cover and nut protective cover, the nut
Protective cover is the hollow structure coincideing with nut shape, has screw hole at the central upper portion of the nut protective cover, described
The upper surface of nut protective cover there is groove, it is high that the groove sidewall height in the outside of the groove is greater than the groove sidewall on the inside of it
Degree, the screw thread protection cover are boss shape, and the lower part of the screw thread protection cover is mounted in the groove, the spiral shell
The lower end of female protective cover has gasket groove, is equipped with seal washer in the gasket groove.
The bolt thread and nut-protecting sleeve, the internal via shape and nut shape of the seal washer coincide, institute
The lateral wall of the lower part for the screw thread protection cover stated is threadedly coupled with the groove sidewall in the outside of the groove.
The utility model has the advantages that
1. the utility model has the advantages of simple structure, easy to process, manufacturing cost is low, and installation and removal are convenient, efficiently solves
Fastener exposed parts and nut outer surfaces colliding with during transport, carrying and installation and debugging scratch or oxidation corrosion etc.
Problem.
The utility model uses split type screw thread and nut protective cover, when screw thread protection cover or nut protection are covered at one
When damage, it is only necessary to one in the two is replaced, is replaced without entire protective case, especially when replacing biggish protective case, pole
Big saving material reduces waste.
The bottom of the utility model uses sealing structure, effectively prevents fine impurities from entering in protective case, avoids inside
Scuffing or corrosion and damage.
When the utility model is used, first seal washer is mounted on protected nut, then nut protective cover is installed,
Nut protective cover and protected nut are compression fit, finally screw thread protection cover are screwed in the groove of nut protective cover.
Detailed description of the invention:
Attached drawing 1 is the structural schematic diagram of the utility model.
Attached drawing 2 is the overall structure diagram of the utility model.
Specific embodiment:
Embodiment 1:
A kind of bolt thread and nut-protecting sleeve, composition includes: screw thread protection cover 1 and nut protective cover 2, the spiral shell
Female protective cover is the hollow structure coincideing with nut shape, has screw hole 3, institute at the central upper portion of the nut protective cover
The upper surface for the nut protective cover stated has groove 4, and the groove sidewall height in the outside of the groove is greater than the slot side on the inside of it
Wall height, the screw thread protection cover are boss shape, and the lower part of the screw thread protection cover is mounted in the groove, described
The lower end of nut protective cover there is gasket groove 5, seal washer 6 is installed in the gasket groove.
Embodiment 2:
According to bolt thread described in embodiment 1 and nut-protecting sleeve, the internal via shape and nut of the seal washer
Shape is coincide, and the lateral wall of the lower part of the screw thread protection cover is threadedly coupled with the groove sidewall in the outside of the groove.
Claims (2)
1. a kind of bolt thread and nut-protecting sleeve, composition includes: screw thread protection cover and nut protective cover, it is characterized in that: institute
The nut protective cover stated is the hollow structure coincideing with nut shape, has screw rod at the central upper portion of the nut protective cover
Hole, the upper surface of the nut protective cover have groove, and the groove sidewall height in the outside of the groove is greater than on the inside of it
Groove sidewall height, the screw thread protection cover are boss shape, and the lower part of the screw thread protection cover is mounted in the groove,
The lower end of the nut protective cover has gasket groove, is equipped with seal washer in the gasket groove.
2. bolt thread according to claim 1 and nut-protecting sleeve, it is characterized in that: the inner hole shape of the seal washer
Shape and nut shape are coincide, the groove sidewall screw thread in the outside of the lateral wall of the lower part of the screw thread protection cover and the groove
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822014559.6U CN209164338U (en) | 2018-12-03 | 2018-12-03 | Bolt thread and nut-protecting sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822014559.6U CN209164338U (en) | 2018-12-03 | 2018-12-03 | Bolt thread and nut-protecting sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209164338U true CN209164338U (en) | 2019-07-26 |
Family
ID=67341583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822014559.6U Active CN209164338U (en) | 2018-12-03 | 2018-12-03 | Bolt thread and nut-protecting sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209164338U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112355426A (en) * | 2020-10-28 | 2021-02-12 | 中国航发贵州黎阳航空动力有限公司 | Protective device for nuts with anodized layers in flame brazing process |
-
2018
- 2018-12-03 CN CN201822014559.6U patent/CN209164338U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112355426A (en) * | 2020-10-28 | 2021-02-12 | 中国航发贵州黎阳航空动力有限公司 | Protective device for nuts with anodized layers in flame brazing process |
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