CN204628196U - A kind of high strength self-tapping screw - Google Patents
A kind of high strength self-tapping screw Download PDFInfo
- Publication number
- CN204628196U CN204628196U CN201520287134.6U CN201520287134U CN204628196U CN 204628196 U CN204628196 U CN 204628196U CN 201520287134 U CN201520287134 U CN 201520287134U CN 204628196 U CN204628196 U CN 204628196U
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- CN
- China
- Prior art keywords
- screw
- nut
- thread section
- afterbody
- section
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Abstract
The utility model discloses a kind of high strength self-tapping screw, comprise nut, screw rod and screw afterbody, described nut is conical, the lower end of nut is connected with screw rod, and described screw rod comprises strengthening segment, linkage section and thread section, and the lower end of described strengthening segment is connected with linkage section, the lower end of described linkage section is provided with thread section, described thread section is provided with screw thread, and the lower end of thread section is connected with screw afterbody, and described nut, strengthening segment, linkage section, thread section, screw afterbody are integral type structure.The utility model substantially increases the intensity of screw, adds the pliability of screw, its tough pull out force and maintenance energy high, after combination, the time long also can not loosen, and structure is simple, and dismounting is easy to maintenance, ensure that simultaneously rail steadily and Security.
Description
[technical field]
The utility model relates to the technical field of fastening piece, particularly a kind of technical field of self-tapping screw.
[background technique]
The afterbody of self-tapping screw screw, need not secondary process in boring tail or fine stern shape, directly arranging boring, tapping, locking on material, basic material, significantly can save the engineering time.Relatively normal screws, its tough pull out force and maintenance energy high, after combination, the time longly also can not loosen, and use safety, in the construction of present inland of China tall building and high-speed transit, more needs the self-tapping screw of high strength.
In railway transport, railroad track is the important component part of rail track, integrally property engineering structure, and track laying, on roadbed, plays the leading role of train operation, directly bears the immense pressure of rolling stock and load thereof.Under the dynamic action of train operation, its each constituent element must have enough strength and stabilities, ensures the maximum speed of train according to regulation, safely, steadily and incessantly runs.And as the screw of parts each on joining rails, not only need high strength, also will have certain pliability and impact resistance, simultaneously also anti-slip, could be that the Security of railway transport provides safeguard.
[model utility content]
The purpose of this utility model solves the problems of the prior art exactly, proposes a kind of high strength self-tapping screw, and the structure of screw is simple, and pliability energy consumption, intensity is high, and maintenance energy is high, has certain impact resistance.
For achieving the above object, the utility model proposes a kind of high strength self-tapping screw, comprise nut, screw rod and screw afterbody, described nut is conical, the lower end of nut is connected with screw rod, described screw rod comprises strengthening segment, linkage section and thread section, the lower end of described strengthening segment is connected with linkage section, the lower end of described linkage section is provided with thread section, described thread section is provided with screw thread, the lower end of thread section is connected with screw afterbody, and described nut, strengthening segment, linkage section, thread section, screw afterbody are integral type structure.
As preferably, the structure of described screw afterbody is for boring shape of tail, and screw afterbody is provided with cutting slot.
As preferably, the top of described nut is provided with rounding, and the upper surface of nut is provided with groove, and the shape of described groove is regular hexagon.
As preferably, the sectional shape of described strengthening segment is regular hexagon or octagon.
The beneficial effects of the utility model: the utility model is by being arranged to taper shape by nut, and be provided with rounding at nut upper surface, add the pliability of screw, screw rod has been arranged to the structure of strengthening segment, linkage section and thread section multistage integral type, substantially increase the intensity of screw, screw is made to have certain impact resistance, and screw afterbody has been arranged to the shape of boring tail, its tough pull out force and maintenance energy high, the rear time length of combination also can not loosen, structure is simple, ensure that the steady of rail and Security.
Feature of the present utility model and advantage will be described in detail by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is the main TV structure figure of a kind of high strength of the utility model self-tapping screw;
Fig. 2 is the plan structure figure of a kind of high strength self-tapping screw of the utility model.
In figure: 1-nut, 2-screw rod, 3-screw afterbody, 11-groove, 12-rounding, 21-strengthening segment, 22-linkage section, 23-thread section, 31-cutting slot, 231-screw thread.
[embodiment]
Consult Fig. 1, Fig. 2, a kind of high strength self-tapping screw of the utility model, comprise nut 1, screw rod 2 and screw afterbody 3, described nut 1 is conical, the lower end of nut 1 is connected with screw rod 2, described screw rod comprises strengthening segment 21, linkage section 22 and thread section 23, the lower end of described strengthening segment 21 is connected with linkage section 22, the lower end of described linkage section 22 is provided with thread section 23, described thread section 23 is provided with screw thread 231, the lower end of thread section 23 is connected with screw afterbody 3, described nut 1, strengthening segment 21, linkage section 22, thread section 23, screw afterbody 3 is integral type structure, the structure of described screw afterbody 3 is for boring shape of tail, screw afterbody 3 is provided with cutting slot 31, the top of described nut 1 is provided with rounding, the upper surface of nut 1 is provided with groove 11, the shape of described groove 11 is regular hexagon, the sectional shape of described strengthening segment 21 is regular hexagon or octagon.
Utility model works process:
A kind of high strength self-tapping screw of the utility model in the course of the work, by the shape of nut 1 has been arranged to taper shape, and nut 1 top is provided with rounding, relatively reduce the rigidity of nut 1, improve the pliability of nut 1, substantial load when can effectively reduce to run on train guide rail, the upper surface of nut 1 is provided with groove 11, groove 11 is regular hexagon, relative to straight groove and cross recess more anti-skidding, for convenience detach, decrease the maintenance time of railroad track, described screw rod 2 is the structure of multistage integral type, strengthening segment 21 is set to octagon, the side face of strengthening segment 21 is provided with stiffening rib, effectively raise the intensity of connection, when bearing immense pressure, there is certain impact resistance, ensure that the maximum speed of train according to regulation, safety, steadily and incessantly run.Excessive by linkage section 22 between described thread section 23 and strengthening segment 21, the sectional shape of linkage section 22 is cylindrical, the structure of described screw afterbody 3 is for boring shape of tail, the wherein a kind of of self-tapping screw, screw afterbody 3 is provided with cutting slot 31, directly boring, tapping, locking on material, basic material can be set, significantly save the engineering time, relatively plain screw, its tough pull out force and maintenance energy high, after combination, the time long also can not loosen, use safety, decrease the operating time of operator simultaneously, improve working efficiency.
Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, anyly all belongs to protection domain of the present utility model to the scheme after the utility model simple transformation.
Claims (4)
1. a high strength self-tapping screw, it is characterized in that: comprise nut (1), screw rod (2) and screw afterbody (3), described nut (1) is conical, the lower end of nut (1) is connected with screw rod (2), described screw rod comprises strengthening segment (21), linkage section (22) and thread section (23), the lower end of described strengthening segment (21) is connected with linkage section (22), the lower end of described linkage section (22) is provided with thread section (23), described thread section (23) is provided with screw thread (231), the lower end of thread section (23) is connected with screw afterbody (3), described nut (1), strengthening segment (21), linkage section (22), thread section (23), screw afterbody (3) is integral type structure.
2. a kind of high strength self-tapping screw as claimed in claim 1, is characterized in that: the structure of described screw afterbody (3) is for boring shape of tail, and screw afterbody (3) is provided with cutting slot (31).
3. a kind of high strength self-tapping screw as claimed in claim 1, it is characterized in that: the top of described nut (1) is provided with rounding (12), the upper surface of nut (1) is provided with groove (11), and the shape of described groove (11) is regular hexagon.
4. a kind of high strength self-tapping screw as claimed in claim 1, is characterized in that: the sectional shape of described strengthening segment (21) is regular hexagon or octagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520287134.6U CN204628196U (en) | 2015-05-06 | 2015-05-06 | A kind of high strength self-tapping screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520287134.6U CN204628196U (en) | 2015-05-06 | 2015-05-06 | A kind of high strength self-tapping screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204628196U true CN204628196U (en) | 2015-09-09 |
Family
ID=54047231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520287134.6U Expired - Fee Related CN204628196U (en) | 2015-05-06 | 2015-05-06 | A kind of high strength self-tapping screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204628196U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159629A (en) * | 2019-05-22 | 2019-08-23 | 广东雅科波罗橱柜有限公司 | A kind of improved screw |
| CN110848225A (en) * | 2019-10-12 | 2020-02-28 | 嘉兴震辰五金科技股份有限公司 | Deformation-preventing high-strength drill tail screw |
-
2015
- 2015-05-06 CN CN201520287134.6U patent/CN204628196U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159629A (en) * | 2019-05-22 | 2019-08-23 | 广东雅科波罗橱柜有限公司 | A kind of improved screw |
| CN110848225A (en) * | 2019-10-12 | 2020-02-28 | 嘉兴震辰五金科技股份有限公司 | Deformation-preventing high-strength drill tail 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: 20150909 Termination date: 20160506 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |