CN208123190U - Pawl screw rod - Google Patents
Pawl screw rod Download PDFInfo
- Publication number
- CN208123190U CN208123190U CN201820052926.9U CN201820052926U CN208123190U CN 208123190 U CN208123190 U CN 208123190U CN 201820052926 U CN201820052926 U CN 201820052926U CN 208123190 U CN208123190 U CN 208123190U
- Authority
- CN
- China
- Prior art keywords
- cone
- short cone
- rod section
- screw rod
- spiro rod
- 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
Links
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- Dowels (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a kind of pawl screw rods, have bipitch structure, and centre is light bar segment, and both ends are spiro rod section, it is characterised in that：The thread of spiro rod section is overlapped mutually in the axial direction for the short cone of same shape and is formed by connecting, and the small head end of short cone is towards outside, and adjacent short cone is equipped with segment cylindrical body in connecting portion, and the outer diameter of the segment cylindrical body is equal to the stub end diameter of short cone.The utility model provides a kind of thread connection type different from existing helical design, so that screw rod is suitable for being fastenedly connected in unthreaded hole occasion.
Description
Technical field
The utility model relates to a kind of fastener products, and in particular to a kind of screw rod for having bipitch structure.
Background technique
The double threaded screw of the prior art, centre are light bar segment, and both ends are spiro rod section, and spiro rod section has the screw thread of helical design
Tooth.Due to product design, some connection fastener inconvenience thread mill drillings, so being difficult to and traditional double threaded screw
Matched the fastening to realize conventional threads connection type.
Summary of the invention
In view of the deficiency of background technique, the technical problem to be solved by the utility model is to provide one kind to be different from existing spiral shell
The thread connection type of design is revolved, to be suitable for the pawl screw rod being fastenedly connected in unthreaded hole occasion.
For this purpose, the utility model is realized using following scheme：
Pawl screw rod has bipitch structure, and centre is light bar segment, and both ends are spiro rod section, it is characterised in that：The spiral shell of spiro rod section
Line tooth is overlapped mutually in the axial direction for the short cone of same shape and is formed by connecting, and the small head end of short cone is adjacent towards outside
Short cone is equipped with segment cylindrical body in connecting portion, and the outer diameter of the segment cylindrical body is equal to the stub end diameter of short cone.
Pawl screw rod using the above structure, with not threaded hole when coupling fastener and being threadedly coupled, pawl
The unthreaded hole of screw rod alignment connection fastener, then applies certain axial force to connection fastener and rotates connection fastener, can
Connection fastener precession is set to enter pawl screw rod, since pawl screw flight tooth does not have traditional helical design, and also it is right
For connection fastener, short cone is equivalent to the stopping function to form a kind of pawl after precession unthreaded hole, and connection is reliable, so
It can be suitable for being fastenedly connected in unthreaded hole occasion.
Preferably, at least one spiro rod section, the male cone (strobilus masculinus) of short cone is equipped with tiny lath in a circumferential direction.It is logical
Above-mentioned design is crossed, can play the role of reinforcing bonding strength and prevents from relatively rotating, the connection for further increasing pawl screw rod can
By property.
Detailed description of the invention
The utility model has following attached drawing：
Fig. 1 is the structure chart of the pawl screw rod of utility model.
Specific embodiment
As shown, the pawl screw rod of the utility model, has bipitch structure, centre is light bar segment 1, and top is spiro rod section
2, following is spiro rod section 3, and the thread of spiro rod section 2 and spiro rod section 3 is that the short cone 4 of same shape is overlapped mutually in the axial direction
It is formed by connecting, for the small head end of short cone 4 towards outside, adjacent short cone 4 is equipped with segment cylindrical body 5, the segment in connecting portion
The outer diameter of cylindrical body 5 is equal to the stub end diameter of short cone 4, and the spiro rod section 2 of top, the male cone (strobilus masculinus) of short cone 4 is in circumference side
It is equipped with tiny lath 6 upwards.
Claims (2)
1. pawl screw rod has bipitch structure, centre is light bar segment, and both ends are spiro rod section, it is characterised in that：The screw thread of spiro rod section
Tooth is overlapped mutually in the axial direction for the short cone of same shape and is formed by connecting, and the small head end of short cone is adjacent short towards outside
Cone is equipped with segment cylindrical body in connecting portion, and the outer diameter of the segment cylindrical body is equal to the stub end diameter of short cone.
2. pawl screw rod as described in claim 1, it is characterised in that：At least one spiro rod section, the male cone (strobilus masculinus) of short cone
It is equipped with tiny lath in a circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820052926.9U CN208123190U (en) | 2018-01-12 | 2018-01-12 | Pawl screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820052926.9U CN208123190U (en) | 2018-01-12 | 2018-01-12 | Pawl screw rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208123190U true CN208123190U (en) | 2018-11-20 |
Family
ID=64205879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820052926.9U Expired - Fee Related CN208123190U (en) | 2018-01-12 | 2018-01-12 | Pawl screw rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208123190U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023116528A1 (en) * | 2021-12-25 | 2023-06-29 | 长春捷翼汽车科技股份有限公司 | Connecting structure |
-
2018
- 2018-01-12 CN CN201820052926.9U patent/CN208123190U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023116528A1 (en) * | 2021-12-25 | 2023-06-29 | 长春捷翼汽车科技股份有限公司 | Connecting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181120 Termination date: 20220112 |