CN207268256U - A kind of screw-thread bush with auto-lock function - Google Patents
A kind of screw-thread bush with auto-lock function Download PDFInfo
- Publication number
- CN207268256U CN207268256U CN201721099579.7U CN201721099579U CN207268256U CN 207268256 U CN207268256 U CN 207268256U CN 201721099579 U CN201721099579 U CN 201721099579U CN 207268256 U CN207268256 U CN 207268256U
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- screw
- thread
- bush
- auto
- thread bush
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Abstract
The utility model belongs to assembling self-locking field.It is proposed a kind of screw-thread bush with auto-lock function, do not increase amount of parts.The excircle of bushing is stepped cylindrical, great circle is installed with corresponding bushing mounting holes, and roundlet then keeps gap with mounting hole, is provided between big cylinder and small column and separates groove, the well width direction is more than the tooth of screw thread away from width is maintained at 2/3 to the 3/4 of Outer Diameter of lining；Bush inside is threaded through hole, and after screw is fit into screw-thread bush, under the action of interior external screw thread, the thread segment for lower end of slotting moves upwards, until locking screw.
Description
Technical field
The invention belongs to assemble self-locking field.
Background technology
In screw installation procedure, it is sometimes desirable to screw is possessed auto-lock function after installing, be increase phase under normal conditions
The self-locking device answered is locked.Amount of parts is added, increases weight, it has not been convenient to operate.
The content of the invention
The purpose of the present invention：It is proposed a kind of screw-thread bush with auto-lock function, do not increase amount of parts.
Technical scheme：
A kind of screw-thread bush with auto-lock function, including：
The excircle of bushing is stepped cylindrical, and great circle is installed with corresponding bushing mounting holes, between roundlet is then kept with mounting hole
Gap, is provided between big cylinder and small column and separates groove, which is more than the tooth of screw thread away from width is maintained at lining
Cover 2/3 to the 3/4 of outside diameter；Bush inside is threaded through hole, after screw is fit into screw-thread bush, externally threaded work inside
Under, the thread segment for lower end of slotting moves upwards, until locking screw.
Advantages of the present invention：Do not increase amount of parts, after screw is fit into screw-thread bush, mounting screw when
Wait, under the action of interior external screw thread, the thread segment for lower end of slotting can move upwards, untill locked screw, reach self-locking work(
Energy.
Brief description of the drawings：
Fig. 1 is schematic structural view of the invention.
Fig. 2 is sectional view of the present invention.
Embodiment：
The present invention is described in further detail below in conjunction with the accompanying drawings.
A kind of screw-thread bush with auto-lock function, as shown in Figure 1, 2, which is stepped cylindrical, great circle with it is corresponding
Bushing mounting holes installation, roundlet then with mounting hole keep certain interval, be provided between big cylinder and small column and separate groove, should
Well width direction needs the tooth more than screw thread away from width need to be maintained at 2/3 to 3/4 place of Outer Diameter of lining.Bush inside is set
Tapped through hole is put, after screw is fit into screw-thread bush when mounting screw, under the action of interior external screw thread, under fluting
The thread segment at end can move upwards, untill locked screw, reach auto-lock function.
Claims (1)
- A kind of 1. screw-thread bush with auto-lock function, it is characterised in that including：The excircle of bushing is stepped cylindrical, and great circle is installed with corresponding bushing mounting holes, and roundlet then keeps gap with mounting hole, greatly It is provided between cylinder and small column and separates groove, which is more than the tooth of screw thread away from width is maintained at outside bushing 2/3 to the 3/4 of footpath；Bush inside is threaded through hole, after screw is fit into screw-thread bush, externally threaded effect inside Under, the thread segment for lower end of slotting moves upwards, until locking screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721099579.7U CN207268256U (en) | 2017-08-30 | 2017-08-30 | A kind of screw-thread bush with auto-lock function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721099579.7U CN207268256U (en) | 2017-08-30 | 2017-08-30 | A kind of screw-thread bush with auto-lock function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207268256U true CN207268256U (en) | 2018-04-24 |
Family
ID=61960112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721099579.7U Active CN207268256U (en) | 2017-08-30 | 2017-08-30 | A kind of screw-thread bush with auto-lock function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207268256U (en) |
-
2017
- 2017-08-30 CN CN201721099579.7U patent/CN207268256U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |