CN205956180U - From locking screw - Google Patents
From locking screw Download PDFInfo
- Publication number
- CN205956180U CN205956180U CN201620917882.2U CN201620917882U CN205956180U CN 205956180 U CN205956180 U CN 205956180U CN 201620917882 U CN201620917882 U CN 201620917882U CN 205956180 U CN205956180 U CN 205956180U
- Authority
- CN
- China
- Prior art keywords
- screw
- shank
- cylinder
- self
- special
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a from locking screw, including the shank of screw and the screwhead that link to each other, the excircle of shank of screw sets up external screw thread, its characterized in that: the root that the shank of screw links to each other with the screwhead sets up the ring channel, is filled by plastic materials in the ring channel, and the plastic materials after the packing forms the cylinder excircle, and the diameter of cylinder excircle equals the threaded outside diameter of shank of screw, and a plurality of axial breach grooves are laid to the surperficial circumference of cylinder excircle, the screwhead is equipped with special -shaped counter bore with the bottom end that the ring channel meets, and plastic materials fills and gets into special -shaped counter bore and fill up it. The utility model discloses have the self -locking function, prevent effectively that the hookup is not hard up, simultaneously simple structure.
Description
Technical field
This utility model is related to a kind of fastener products and in particular to a kind of self-locking screw.
Background technology
At present, the nut product with self-locking function can be found everywhere, but the screw product with self-locking function but can not
See, so, when only carrying out tightening fixing to workpiece with screw it is difficult to accomplish effectively to prevent connection from loosening, and to accomplish have
Imitate prevents connection from loosening it is necessary to adopt some ancillary methods, complex structure.
Content of the invention
In view of the problem that currently known technology exists, the technical problems to be solved in the utility model is to be to provide a kind of tool
There is self-locking function, effectively prevent connection from loosening, the screw of the simple self-locking of structure simultaneously.
This utility model is implemented by the following technical programs：
Self-locking screw, including the shank of screw being connected and head of screw, the cylindrical setting external screw thread of shank of screw, its feature exists
In：The root setting cannelure that shank of screw is connected with head of screw, is filled with by plastic material in cannelure, the plastics after filling
Material formation cylinder is cylindrical, and the outer diameter of a circle of cylinder is equal to the major diameter of thread of shank of screw, if the cylindrical surface perimeter of cylinder is laid
Dry axial gap groove.
The bottom end face that head of screw is connected with cannelure is provided with special-shaped counterbore, and plastic material is filled into special-shaped counterbore and incites somebody to action
It fills up.
After technique scheme, when the shank of screw of screw is screwed into the screwed hole of workpiece and during near position, screw pole-footing
Plastic material in portion's cannelure can enter workpiece screwed hole and be subject to the crimp of workpiece screwed hole, the plastics of crimp
Material not only enters axial gap groove and can fill up whole screw thread interporal lacuna, and then makes to be formed between plastic material and screwed hole
Sealing vacuum state, produces powerful anti-loosening locking power, therefore can effectively prevent screw-driving between plastic material and screwed hole
Connection afterwards loosens, and screw has self-locking function, and structure is simple simultaneously.
Brief description
This utility model has drawings described below：
Fig. 1 is structural representation of the present utility model,
Fig. 2 is the A-A view of Fig. 1.
Specific embodiment
Describe relevant details and the operation principle of this utility model specific embodiment below in conjunction with the accompanying drawings in detail：
As illustrated, self-locking screw of the present utility model, including the shank of screw 2 being connected and head of screw 1, shank of screw 2
Cylindrical setting external screw thread, the root setting cannelure 4 that shank of screw 2 is connected with head of screw 1, carried out by plastic material 3 in cannelure 4
Filling, the plastic material 3 formation cylinder after filling is cylindrical, and the outer diameter of a circle of cylinder of plastic material 3 is equal to the screw thread of shank of screw 2
External diameter, the surface perimeter that the cylinder of plastic material 3 is cylindrical lays axial gap groove 6 at six；Head of screw 1 is connected with cannelure 4
Bottom end face is provided with hexagon counterbore 5, and plastic material 3 is filled into hexagon counterbore 5 and is filled up.
Claims (2)
1. self-locking screw, including the shank of screw being connected and head of screw, the cylindrical setting external screw thread of shank of screw it is characterised in that：
The root setting cannelure that shank of screw is connected with head of screw, is filled with by plastic material in cannelure, the plastics material after filling
Material formation cylinder is cylindrical, and the outer diameter of a circle of cylinder is equal to the major diameter of thread of shank of screw, and the cylindrical surface perimeter of cylinder is laid some
Axial gap groove.
2. self-locking screw as claimed in claim 1 it is characterised in that：The bottom end face that head of screw is connected with cannelure is provided with
Special-shaped counterbore, plastic material is filled into special-shaped counterbore and is filled up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620917882.2U CN205956180U (en) | 2016-08-23 | 2016-08-23 | From locking screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620917882.2U CN205956180U (en) | 2016-08-23 | 2016-08-23 | From locking screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205956180U true CN205956180U (en) | 2017-02-15 |
Family
ID=57976710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620917882.2U Expired - Fee Related CN205956180U (en) | 2016-08-23 | 2016-08-23 | From locking screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205956180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122237A (en) * | 2016-08-23 | 2016-11-16 | 瑞安市威孚标准件有限公司 | Self-locking screw |
-
2016
- 2016-08-23 CN CN201620917882.2U patent/CN205956180U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122237A (en) * | 2016-08-23 | 2016-11-16 | 瑞安市威孚标准件有限公司 | Self-locking screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170215 Termination date: 20180823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |