CN204755532U - Self driving screw - Google Patents
Self driving screw Download PDFInfo
- Publication number
- CN204755532U CN204755532U CN201520444914.7U CN201520444914U CN204755532U CN 204755532 U CN204755532 U CN 204755532U CN 201520444914 U CN201520444914 U CN 201520444914U CN 204755532 U CN204755532 U CN 204755532U
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- CN
- China
- Prior art keywords
- screw
- screw rod
- nut
- cylindrical section
- diameter
- 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 relates to a screw especially relates to a self driving screw. The utility model provides a self driving screw, includes the body of screw, the body of screw includes the screw rod of nut and its bottom, is equipped with the screw thread on the screw rod, the end of screw rod has the self tapping end that is the pointed cone form, be the taper cylindrical section between nut and the screw rod, the tip diameter of taper cylindrical section is the same with the diameter of screw rod, the main aspects diameter of taper cylindrical section is less than the diameter of nut, and the periphery of taper cylindrical section is equipped with a plurality of rectangular shape dogtooths, and the interval sets up between each rectangular shape dogtooth, be equipped with the recess between two screw threads near the self tapping end on the screw rod. The utility model has the advantages that: the utility model discloses a self driving screw, processing is simple and convenient, and the assembly is simple, and anti -skidding effect is showing, can prevent effectively that it from exposing the part and rustting, increases the life of screw, avoids or reduce it exposing the partial harm that probably causes the person.
Description
Technical field
The utility model relates to a kind of screw, particularly relates to a kind of tapping screw.
Background technique
Screw is the fastening piece for mounting article, and it uses comparatively extensive, usually screw is mounted to fixation and with in the screw of fixture articles, just can implements to fix.Screw, in the process used, often there will be, and because screw is partially long, cause the end of screw to be exposed to outside, so not only screw can get rusty and affect working life, but also can there is potential safety hazard; In addition, existing screw when being fastenedly connected connected piece, due to screw not arranging anti-skid structure, this just needs to adopt packing ring to carry out anti-skidding, but screw is adopted and carried out anti-skidding in this way, not only assembles complexity, reduce working efficiency, and costly, add cost.Therefore, a kind of new technological scheme should be provided to solve the problem.
Summary of the invention
It is simple that the purpose of this utility model is to provide a kind of structure, anti-skidding, safe tapping screw.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of tapping screw, comprise the body of screw, the described body of screw comprises the screw rod of nut and its bottom, screw rod is provided with screw thread, the end of described screw rod has in cone-shaped self tapping end, it is taper cylindrical section between described nut and screw rod, the end diameter of described taper cylindrical section is identical with the diameter of screw rod, the Outside diameter of described taper cylindrical section is less than the diameter of nut, the circumferential surface of taper cylindrical section is provided with some long strip double wedges, between each long strip double wedge, interval is arranged, and described screw rod is provided with groove between two screw threads of self tapping end.
Further technological scheme:
The upper-end surface of described nut forms cross recess or straight groove, on the upper-end surface of described nut, also circumference forms plural rectangular aperture groove.
The surface of the described body of screw is coated with one deck resin layer.
Due to the application of technique scheme, the utility model compared with prior art tool has the following advantages:
Tapping screw of the present utility model, processes easy, and assembling is simple, and skidproof effect is remarkable, can effectively prevent its exposed parts from getting rusty, and increases the working life of screw, avoids or reduce the harm that its exposed parts may cause the person.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model structural representation.
Accompanying drawing 2 is embodiment one nut structure schematic diagram.
Accompanying drawing 3 is embodiment two nut structure schematic diagram.
In above accompanying drawing: 1, nut, 2, screw rod, 3, cylindrical section, 4, double wedge, 5, screw thread, 6, groove, 7, cross recess, 8, straight groove, 9, open recess, 10, self tapping end.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment one:
As illustrated in fig. 1 and 2, a kind of tapping screw of the utility model, comprise the body of screw, the described body of screw comprises the screw rod 2 of nut 1 and its bottom, screw rod 2 is provided with screw thread 5, the end of screw rod 2 has in cone-shaped self tapping end 3, it is taper cylindrical section 3 between nut 1 and screw rod 2, the end diameter of taper cylindrical section 3 is identical with the diameter of screw rod 2, the Outside diameter of taper cylindrical section 3 is less than the diameter of nut 1, the circumferential surface of taper cylindrical section 3 is provided with some long strip double wedges 4, between each long strip double wedge 4, interval is arranged, screw rod 2 is provided with groove 6 between two screw threads of self tapping end 10, groove 6 was around screw rod 2 one weeks.The upper-end surface of nut 1 forms cross recess 7, on the upper-end surface of nut 1, also circumference forms plural rectangular aperture groove 9, and the surface of the body of screw is coated with one deck resin layer.
Embodiment two
As shown in figs. 1 and 3, a kind of tapping screw of the utility model, the upper-end surface of nut 1 forms straight groove 8, all the other structures are with embodiment one.
Tapping screw of the present utility model, processes easy, and assembling is simple, and some long strip double wedge 4 skidproof effects that taper cylindrical section 3 circumferential surface is arranged are remarkable.On screw rod 2 near self tapping end 10 two screw threads between arrange around the screw rod groove of 2 one weeks 6, be easy to beat with weight make tapping screw establish reeded position to fracture at it, thus can effectively prevent its exposed parts from getting rusty, increase the working life of screw, avoid or reduce the harm that its exposed parts may cause the person.The upper-end surface of the head of plus screw or a word screw also forms plural rectangular aperture groove 9, it can continue straight groove 8 or cross recess 7 after being dismounted for multiple times wear out failure, inserted in rectangular aperture groove 9 by special instrument and carry out tightening or dismantling, substantially prolongs the working life of screw.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from principle described in the utility model; can also make some improvement or replacement, these improve or replace and also should be considered as protection domain of the present utility model.
Claims (3)
1. a tapping screw, it is characterized in that: comprise the body of screw, the described body of screw comprises the screw rod (2) of nut (1) and its bottom, screw rod (2) is provided with screw thread (5), the end of described screw rod (2) has in cone-shaped self tapping end (10), be taper cylindrical section (3) between described nut (1) and screw rod (2), the end diameter of described taper cylindrical section (3) is identical with the diameter of screw rod (2), the Outside diameter of described taper cylindrical section (3) is less than the diameter of nut (1), the circumferential surface of taper cylindrical section (3) is provided with some long strip double wedges (4), between each long strip double wedge (4), interval is arranged, described screw rod (2) is upper is provided with groove (6) between two screw threads of self tapping end (10).
2. a kind of tapping screw according to claim 1, it is characterized in that: the upper-end surface of described nut (1) forms cross recess (7) or straight groove (8), on the upper-end surface of described nut (1), also circumference forms plural rectangular aperture groove (9).
3. a kind of tapping screw according to claim 1, is characterized in that: the surface of the described body of screw is coated with one deck resin layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520444914.7U CN204755532U (en) | 2015-06-25 | 2015-06-25 | Self driving screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520444914.7U CN204755532U (en) | 2015-06-25 | 2015-06-25 | Self driving screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204755532U true CN204755532U (en) | 2015-11-11 |
Family
ID=54470243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520444914.7U Expired - Fee Related CN204755532U (en) | 2015-06-25 | 2015-06-25 | Self driving screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204755532U (en) |
-
2015
- 2015-06-25 CN CN201520444914.7U patent/CN204755532U/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: 20151111 Termination date: 20160625 |