CN103398059A - Expansion screw - Google Patents
Expansion screw Download PDFInfo
- Publication number
- CN103398059A CN103398059A CN2013102529566A CN201310252956A CN103398059A CN 103398059 A CN103398059 A CN 103398059A CN 2013102529566 A CN2013102529566 A CN 2013102529566A CN 201310252956 A CN201310252956 A CN 201310252956A CN 103398059 A CN103398059 A CN 103398059A
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- CN
- China
- Prior art keywords
- screw
- expansion
- swell fixture
- circle hole
- expansion screw
- 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.)
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Abstract
The invention discloses an expansion screw. Compared with a traditional expansion screw, the expansion screw has the advantage that a screw hole is formed in the screw so that the functions of expansion and fastening can be achieved. The expansion screw is fully made of metal materials. The tapping function is achieved by the expansion screw. Meanwhile, the expansion screw is a whole expansion body and is simple in structure and easy to machine. A plurality of V-shaped grooves are formed in the side face of the expansion screw, so that the tapping function is strengthened and the expansion degree of the expansion screw is improved, the expansion screw is prevented from being damaged by too large expansion force, and damage caused by too large or too small expansion force to the screw is avoided. The value of the length of a screw installation circular through hole occupying the whole screw is further defined and the expansion screw is good in social benefits.
Description
Technical field
The present invention relates to a kind of swell fixture, belong to the hardware field.
Background technique
Traditional swell fixture is realized expanding by a plastic shell or metallic case, but there is the low problem of the poor tightening force of durability in the swell fixture of plastics shell-type, and expansion of metal bolt structure more complicated, and above-mentioned two kinds of swell fixtures all do not have the function of self tapping.
Summary of the invention
The object of the invention is to: a kind of technological scheme that can overcome the above problems is provided.
The present invention realizes by the following method:
A kind of swell fixture, described screw comprise screw-tipped and nut end, and described swell fixture inside vertically is processed with a screw-like circle hole from the nut end to distance screw-tipped L, and described screw-like circle hole inwall is processed with screw thread.
As further innovation of the present invention, described swell fixture is penetrated with some V-shaped grooves from screw-like circle hole inwall towards screw outer wall symmetry centered by screw axis, and the tip of described Type B groove is towards the screw bottom tip.
As further innovation of the present invention, the tip of described V-shaped groove and screw-like circle hole bottom tip are on same level.
As further innovation of the present invention, the nut top end face of described screw-like circle hole from the screw head of screw to screw is the flaring structure.
As further innovation of the present invention, the diameter in described screw-like circle hole is L1, and the diameter of swell fixture is L2, and wherein the L1 of 2 times is less than L2.
As further innovation of the present invention, first described swell fixture is screwed in, then by one with this swell fixture in the supporting plain screw screw-in of line.
Beneficial effect
The present invention is with respect to traditional swell fixture, the present invention is the full-metallic material, swell fixture self plays the effect of self tapping, swell fixture itself is also Peng's integral body simultaneously, simple structure, processing is simple, simultaneously in the side of screw, have some V-shaped grooves, strengthened the function of tapping, also improved the thermal expansion of screw, the mode expansive force is excessive causes the screw breakage, for preventing the screw excessive or too small breakage that causes of expanding, the screw that the present invention has also defined in screw fills the value that through hole circle hole accounts for whole screw length, has good social benefit.
The accompanying drawing explanation
Fig. 1 is front view of the present invention.
Fig. 2 is plan view of the present invention.
In figure: 1, screw-like circle hole; 2, V-shaped groove.
Embodiment
Below in conjunction with accompanying drawing, be described further:
As shown in Figure 1 and 2, described screw comprises screw-tipped and nut end, and described swell fixture inside vertically is processed with a screw-like circle hole 1 from the nut end to distance screw-tipped L, and described screw-like circle hole 1 inwall is processed with screw thread; Described swell fixture is penetrated with some V-shaped grooves 2 from screw-like circle hole 1 inwall towards screw outer wall symmetry centered by screw axis, and the tip of described Type B groove is towards the screw bottom tip; The tip of described V-shaped groove 2 and screw-like circle hole bottom tip are on same level; The nut top end face of described screw-like circle hole 1 from the screw head of screw to screw is the flaring structure; The diameter in described screw-like circle hole 1 is L1, and the diameter of swell fixture is L2, and wherein the L1 of 2 times is less than L2; During use, first described swell fixture is screwed in, then by one with this swell fixture in the supporting plain screw screw-in of line.
Claims (6)
1. swell fixture, described screw comprises screw-tipped and nut end, it is characterized in that: described swell fixture inside vertically is processed with a screw-like circle hole from the nut end to distance screw-tipped L, and described round hole inwall is processed with screw thread.
2. a kind of swell fixture as claimed in claim 1 is characterized in that: described swell fixture is penetrated with some V-shaped grooves from screw-like circle hole inwall towards screw outer wall symmetry centered by screw axis, and the tip of described Type B groove is towards the screw bottom tip.
3. a kind of swell fixture as claimed in claim 2 is characterized in that: the tip of described V-shaped groove and screw-like circle hole bottom tip are on same level.
4. a kind of swell fixture as claimed in claim 1 is characterized in that: the nut top end face of described screw-like circle hole from the screw head of screw to screw is the flaring structure.
5. a kind of swell fixture as claimed in claim 1 is characterized in that: the diameter in described screw-like circle hole is L1, and the diameter of swell fixture is L2, and wherein the L1 of 2 times is less than L2.
6. the using method of a kind of swell fixture as claimed in claim 1 is characterized in that: first described swell fixture is screwed in, then by one with this swell fixture in the supporting plain screw screw-in of line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102529566A CN103398059A (en) | 2013-06-25 | 2013-06-25 | Expansion screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102529566A CN103398059A (en) | 2013-06-25 | 2013-06-25 | Expansion screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103398059A true CN103398059A (en) | 2013-11-20 |
Family
ID=49561750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102529566A Pending CN103398059A (en) | 2013-06-25 | 2013-06-25 | Expansion screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103398059A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513372A (en) * | 2019-09-25 | 2019-11-29 | 淮北创之社信息科技有限公司 | One kind, which is fixedly connected, uses expansion sleeve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB101778A (en) * | 1916-08-09 | 1916-10-19 | Richard Edward Reynolds James | Improvements in Devices for Locking Together Bolts and Nuts, or the like. |
| US1363710A (en) * | 1920-04-26 | 1920-12-28 | Best John | Nut-lock |
| FR867253A (en) * | 1940-06-07 | 1941-10-10 | Self-locking bolt with expandable slots | |
| DE2602283A1 (en) * | 1976-01-22 | 1977-07-28 | Helmut Essich | Metal screw locking device - has split shank forced apart by dowel driven into tapered bore |
| CA2499555A1 (en) * | 2002-09-21 | 2004-04-01 | Patrick W. Breslin | Split lock screw fastener assembly and method |
| CN203348260U (en) * | 2013-06-25 | 2013-12-18 | 吴江市黎里建兴铸件厂 | Expansion screw |
-
2013
- 2013-06-25 CN CN2013102529566A patent/CN103398059A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB101778A (en) * | 1916-08-09 | 1916-10-19 | Richard Edward Reynolds James | Improvements in Devices for Locking Together Bolts and Nuts, or the like. |
| US1363710A (en) * | 1920-04-26 | 1920-12-28 | Best John | Nut-lock |
| FR867253A (en) * | 1940-06-07 | 1941-10-10 | Self-locking bolt with expandable slots | |
| DE2602283A1 (en) * | 1976-01-22 | 1977-07-28 | Helmut Essich | Metal screw locking device - has split shank forced apart by dowel driven into tapered bore |
| CA2499555A1 (en) * | 2002-09-21 | 2004-04-01 | Patrick W. Breslin | Split lock screw fastener assembly and method |
| CN203348260U (en) * | 2013-06-25 | 2013-12-18 | 吴江市黎里建兴铸件厂 | Expansion screw |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513372A (en) * | 2019-09-25 | 2019-11-29 | 淮北创之社信息科技有限公司 | One kind, which is fixedly connected, uses expansion sleeve |
| CN110513372B (en) * | 2019-09-25 | 2023-08-04 | 淮北创之社信息科技有限公司 | Expansion sleeve for fixed connection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131120 |