CN204729567U - A kind of length-adjustable screw mandrel - Google Patents
A kind of length-adjustable screw mandrel Download PDFInfo
- Publication number
- CN204729567U CN204729567U CN201520473291.6U CN201520473291U CN204729567U CN 204729567 U CN204729567 U CN 204729567U CN 201520473291 U CN201520473291 U CN 201520473291U CN 204729567 U CN204729567 U CN 204729567U
- Authority
- CN
- China
- Prior art keywords
- screw mandrel
- connecting rod
- barb
- contiguous block
- length
- 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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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a kind of length-adjustable screw mandrel, include screw mandrel body and connecting rod, one end of described screw mandrel body is provided with joint, described joint is made up of some circumferentially uniform contiguous blocks, the inner of described contiguous block is connected with this body by integral forming of screw mandrel, the outer end of described contiguous block is provided with barb, one end of described connecting rod is provided with installation keyway, the other end of described connecting rod is provided with the attachment hole inserted for the joint on described screw mandrel body, and the sidewall of described attachment hole is also linearly evenly equipped with in the axial direction several and described barb and is formed to hook and join fixing groove.Adopt said structure, the telescopic adjustment of screw mandrel entire length can be realized, thus make screw mandrel can be applicable to application widely.
Description
Technical field
The utility model relates to a kind of screw mandrel.
Background technique
At present, screw mandrel is widely used in the machinery of every field, but existing screw mandrel is integrate shaped type structure, and its length cannot regulate, thus there is narrow limitation in practical application.
Summary of the invention
For the deficiencies in the prior art, the utility model provides a kind of length-adjustable screw mandrel.
For achieving the above object, the utility model provides a kind of length-adjustable screw mandrel, include screw mandrel body and connecting rod, one end of described screw mandrel body is provided with joint, described joint is made up of some circumferentially uniform contiguous blocks, the inner of described contiguous block is connected with this body by integral forming of screw mandrel, the outer end of described contiguous block is provided with barb, one end of described connecting rod is provided with installation keyway, the other end of described connecting rod is provided with the attachment hole inserted for the joint on described screw mandrel body, and the sidewall of described attachment hole is also linearly evenly equipped with in the axial direction several and described barb and is formed to hook and join fixing groove.
The beneficial effects of the utility model are: adopt said structure, because screw mandrel provided by the utility model is that the screw mandrel body that arranged by split and connecting rod are formed, therefore join fixing by the hook of diverse location groove on contiguous block barb on screw mandrel body and connecting rod, the telescopic adjustment of screw mandrel entire length can be realized, thus make screw mandrel can be applicable to application widely.
It is radial through on the outer peripheral surface of connecting rod that the utility model can be set to described groove further.Such setting, not only can make to be formed between barb and groove hook more solid and reliablely join fixing, and the assembly connection be conducive between barb and groove or fractionation.
The utility model also can be set to described contiguous block further and be preferably two pieces, and has clamped Compress Spring between two pieces of contiguous blocks.Such setting, under the effect of Compress Spring, can effectively prevent barb from skidding off in groove.
The utility model also can be set to described Compress Spring correspondence further and be positioned at the inner side that contiguous block is provided with barb, and the inner side that described contiguous block is provided with barb is also provided with the projection of stationary positioned Compress Spring.Such setting, can make the spring energy of Compress Spring directly act on barb, and the setting of projection, then can form stationary positioned effectively to Compress Spring.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Give a kind of length-adjustable screw mandrel as shown in Figure 1, include screw mandrel body 1 and connecting rod 2, one end of described screw mandrel body 1 is provided with joint, described joint is made up of some circumferentially uniform contiguous blocks 11, the inner of described contiguous block 11 is connected with screw mandrel body 1 is one-body molded, the outer end of described contiguous block 11 is provided with barb 12, one end of described connecting rod 2 is provided with installs keyway 21, the other end of described connecting rod 2 is provided with the attachment hole 22 inserted for the joint on described screw mandrel body 1, and the sidewall of described attachment hole 22 is also linearly evenly equipped with in the axial direction several and described barb 12 and is formed to hook and join fixing groove 23, and described groove 23 is radial through on the outer peripheral surface of connecting rod 2.
Described contiguous block 11 is preferably two pieces, and has clamped Compress Spring 3 between two pieces of contiguous blocks 11.Described Compress Spring 3 correspondence is positioned at the inner side that contiguous block 11 is provided with barb 12, and the inner side that described contiguous block 11 is provided with barb 12 is also provided with the projection 13 of stationary positioned Compress Spring 3.
Adopt said structure, because screw mandrel provided by the utility model is that the screw mandrel body 1 that arranged by split and connecting rod 2 are formed, therefore join fixing by contiguous block barb on screw mandrel body 1 12 and the hook of diverse location groove 23 on connecting rod 2, the telescopic adjustment of screw mandrel entire length can be realized, thus make screw mandrel can be applicable to application widely.
Claims (4)
1. a length-adjustable screw mandrel, it is characterized in that: include screw mandrel body and connecting rod, one end of described screw mandrel body is provided with joint, described joint is made up of some circumferentially uniform contiguous blocks, the inner of described contiguous block is connected with this body by integral forming of screw mandrel, the outer end of described contiguous block is provided with barb, one end of described connecting rod is provided with installation keyway, the other end of described connecting rod is provided with the attachment hole inserted for the joint on described screw mandrel body, and the sidewall of described attachment hole is also linearly evenly equipped with in the axial direction several and described barb and is formed to hook and join fixing groove.
2. the length-adjustable screw mandrel of one according to claim 1, is characterized in that: described groove is radial through on the outer peripheral surface of connecting rod.
3. the length-adjustable screw mandrel of one according to claim 1, is characterized in that: described contiguous block is two pieces, and has clamped Compress Spring between two pieces of contiguous blocks.
4. the length-adjustable screw mandrel of one according to claim 3, is characterized in that: described Compress Spring correspondence is positioned at the inner side that contiguous block is provided with barb, and the inner side that described contiguous block is provided with barb is also provided with the projection of stationary positioned Compress Spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520473291.6U CN204729567U (en) | 2015-06-30 | 2015-06-30 | A kind of length-adjustable screw mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520473291.6U CN204729567U (en) | 2015-06-30 | 2015-06-30 | A kind of length-adjustable screw mandrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204729567U true CN204729567U (en) | 2015-10-28 |
Family
ID=54387922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520473291.6U Expired - Fee Related CN204729567U (en) | 2015-06-30 | 2015-06-30 | A kind of length-adjustable screw mandrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204729567U (en) |
-
2015
- 2015-06-30 CN CN201520473291.6U patent/CN204729567U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20160630 |