CN203822807U - Screw - Google Patents
Screw Download PDFInfo
- Publication number
- CN203822807U CN203822807U CN201420266151.7U CN201420266151U CN203822807U CN 203822807 U CN203822807 U CN 203822807U CN 201420266151 U CN201420266151 U CN 201420266151U CN 203822807 U CN203822807 U CN 203822807U
- Authority
- CN
- China
- Prior art keywords
- screw
- head
- connecting thread
- thread
- groove
- 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
- 210000002435 tendon Anatomy 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 6
- 230000007812 deficiency Effects 0.000 description 1
Landscapes
- Bolts, Nuts, And Washers (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The utility model discloses a screw. The key point of the technical scheme is that the screw comprises a head part and a screw rod, a first connecting thread is formed on the surface of the screw rod, an inwardly concave cylindrical groove is formed in one end surface of the screw rod, a second connecting thread is formed in the inside wall of the cylindrical groove, the turning directions of the first connecting thread and the second connecting thread are the same, a connecting bar is arranged on one end surface of the head part, a rotary groove is formed in the other end surface of the head part, and the connecting bar is placed in the cylindrical groove and is in threaded fit with the cylindrical groove. The screw rod and the head part are detachable, the structure is simple and the manufacture is convenient.
Description
Technical field
The utility model relates to fastener areas, and more particularly, it relates to a kind of screw.
Background technique
Screw is conventional fastening piece, and screw rod and the head of conventional screw are fixed as one, and cannot separate, and is screwed while connecting two articles, and head is generally stayed outside the surface of object, makes object surface out-of-flatness, not attractive in appearance.
Model utility content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of screw, has screw rod and head detachable and simple in structure, is convenient to manufacture.
For achieving the above object, the utility model provides following technological scheme: a kind of screw, comprise head and screw rod, described screw surface is provided with the first connecting thread, and an end face of described screw rod is provided with the cylinder groove caving inward, and described cylinder groove madial wall is provided with the second connecting thread, described the first connecting thread is identical with the second connecting thread rotation direction, described head one end face is provided with connecting rod, and other end is provided with rotation groove, described connecting rod be placed in cylinder groove and with its screw-thread fit.
By adopting technique scheme, because described the first connecting thread is identical with the second connecting thread rotation direction, connecting rod on described head is placed in the opening of cylinder groove, rotation head makes in connecting rod and cylinder groove, complete the connection of two articles, and then head is taken off from screw rod, be connected object surface and there is no screw head, surfacing, avoids conventional screw head to stay outside, the unnecessary trouble of bringing, the second screw thread of the madial wall of cylinder groove simultaneously, can use regular tap to carry out merit silk, simple in structure, be convenient to manufacture.
The utility model is further set to: described the first connecting thread is six line screw threads.
By adopting technique scheme, six line screw threads assemble, and can effectively improve efficiency of assembling.
The utility model is further set to: the other end that described head rotates groove is relatively provided with slideproof tooth, described slideproof tooth true dip direction and screw-driving opposite direction.
By adopting technique scheme, described slideproof tooth true dip direction and screw-driving opposite direction, slideproof tooth has improved the soundness that screw connects, and has reduced the risk of screw loosening in the environment of sharp pounding.
The utility model is further set to: the other end of the relative head of described connecting rod is provided with the puncture of several outwardly convexs, on uniform this end face of described puncture.
By adopting technique scheme, when described connecting rod screw thread rotation is placed in connecting groove, puncture can be inconsistent with the diapire of connecting groove, improves the degree of being connected firmly of connecting rod and connecting groove.
The utility model is further set to: described screw surface is provided with several anti-skidding convex tendons, and described anti-skidding convex tendon is circumferentially uniformly distributed around screw axis.
By adopting technique scheme, described anti-skidding convex tendon can effectively prevent screw loosening.
The utility model is further set to: the cross section of described anti-skidding convex tendon is that arc surface is convenient to manufacture, and reduces manufacture cost.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of screw of the utility model;
Fig. 2 is the structural representation of screw rod in Fig. 1;
Fig. 3 is the structural representation of head in Fig. 1.
In figure 1, head; 11, connecting rod; 12, rotation groove; 13, slideproof tooth; 14, puncture; 2, screw rod; 21, the first connecting thread; 22, cylinder groove; 23, the second connecting thread; 24, anti-skidding convex tendon.
Embodiment
Referring to figs. 1 through Fig. 3, a kind of screw of the utility model is described further.
A kind of screw, comprise head 1 and screw rod 2, described screw rod 2 surfaces are provided with the first connecting thread 21, in order to improve efficiency of assembling, described the first connecting thread 21 is six line screw threads, one end face of described screw rod 2 is provided with the cylinder groove 22 caving inward, described cylinder groove 22 madial walls are provided with the second connecting thread 23, described the first connecting thread 21 is identical with the second connecting thread 23 rotation directions, described head 1 one end faces are provided with connecting rod 11, other end is provided with rotation groove 12, described connecting rod 11 be placed in cylinder groove 22 and with its screw-thread fit.
Because described the first connecting thread 21 is identical with the second connecting thread 23 rotation directions, connecting rod 11 on described head 1 is placed in the opening of cylinder groove 22, rotation head 1 makes in connecting rod 11 and cylinder groove 22, complete the connection of two articles, and then head 1 is taken off from screw rod 2, be connected object surface and there is no screw head 1, surfacing, avoid conventional screw head 1 to stay outside, the unnecessary trouble of bringing, the second screw thread of the madial wall of cylinder groove 22, can use regular tap to carry out merit silk simultaneously, simple in structure, be convenient to manufacture.
The wherein said head 1 relatively other end of rotation groove 12 is provided with slideproof tooth 13, described slideproof tooth 13 true dip directions and screw-driving opposite direction, can effectively improve the soundness that screw connects, reduce the risk of screw loosening in the environment of sharp pounding.
The other end of wherein said connecting rod 11 relative heads 1 is provided with the puncture 14 of several outwardly convexs, on uniform this end face of described puncture 14, when described connecting rod 11 screw thread rotation are placed in connecting groove, puncture 14 can be inconsistent with the diapire of connecting groove, improves the degree of being connected firmly of connecting rod 11 and cylinder groove 22.
Described screw rod 2 surfaces are provided with several anti-skidding convex tendons 24, for the ease of manufacturing, reduce manufacture cost, and the cross section of described anti-skidding convex tendon 24 is arc surface, and described anti-skidding convex tendon 24 is circumferentially uniformly distributed around screw rod 2 axis, can effectively prevent screw loosening.
Claims (6)
1. a screw, comprise head and screw rod, described screw surface is provided with the first connecting thread, it is characterized in that: an end face of described screw rod is provided with the cylinder groove caving inward, described cylinder groove madial wall is provided with the second connecting thread, and described the first connecting thread is identical with the second connecting thread rotation direction, and described head one end face is provided with connecting rod, other end is provided with rotation groove, described connecting rod be placed in cylinder groove and with its screw-thread fit.
2. a kind of screw according to claim 1, is characterized in that: described the first connecting thread is six line screw threads.
3. a kind of screw according to claim 1 and 2, is characterized in that: the other end that described head rotates groove is relatively provided with slideproof tooth, described slideproof tooth true dip direction and screw-driving opposite direction.
4. a kind of screw according to claim 3, is characterized in that: the other end of the relative head of described connecting rod is provided with the puncture of several outwardly convexs, on uniform this end face of described puncture.
5. a kind of screw according to claim 4, is characterized in that: described screw surface is provided with several anti-skidding convex tendons, and described anti-skidding convex tendon is circumferentially uniformly distributed around screw axis.
6. a kind of screw according to claim 5, is characterized in that: the cross section of described anti-skidding convex tendon is arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420266151.7U CN203822807U (en) | 2014-05-23 | 2014-05-23 | Screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420266151.7U CN203822807U (en) | 2014-05-23 | 2014-05-23 | Screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203822807U true CN203822807U (en) | 2014-09-10 |
Family
ID=51478316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420266151.7U Expired - Fee Related CN203822807U (en) | 2014-05-23 | 2014-05-23 | Screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203822807U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257661A (en) * | 2015-11-20 | 2016-01-20 | 李家海 | Stealth screw with movable nut |
| CN107314019A (en) * | 2017-06-07 | 2017-11-03 | 安徽新兴翼凌机电发展有限公司 | A kind of new many adaptation decoration fixing screws |
-
2014
- 2014-05-23 CN CN201420266151.7U patent/CN203822807U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257661A (en) * | 2015-11-20 | 2016-01-20 | 李家海 | Stealth screw with movable nut |
| CN107314019A (en) * | 2017-06-07 | 2017-11-03 | 安徽新兴翼凌机电发展有限公司 | A kind of new many adaptation decoration fixing screws |
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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: 20140910 Termination date: 20160523 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |