CN105626643A - Expansion screw capable of preventing axial rotation - Google Patents
Expansion screw capable of preventing axial rotation Download PDFInfo
- Publication number
- CN105626643A CN105626643A CN201410622753.6A CN201410622753A CN105626643A CN 105626643 A CN105626643 A CN 105626643A CN 201410622753 A CN201410622753 A CN 201410622753A CN 105626643 A CN105626643 A CN 105626643A
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- China
- Prior art keywords
- screw rod
- screw
- sleeve pipe
- stator
- canned paragraph
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Abstract
The invention relates to an expansion screw capable of preventing axial rotation. The expansion screw comprises a sleeve, a screw and a nut adaptive to the screw, wherein a gasket is further arranged between the nut and the sleeve. The expansion screw is characterized in that at least two movable openings are uniformly distributed in the middle part of the surface of the sleeve; one side of each movable opening is provided with a long-strip-shaped cut extending in an axial direction of the sleeve; each cut is positioned at one side, close to the tail end of the screw, of the sleeve; the tail end of the screw is provided with a fixing section; the diameter of the fixing section is a bit greater than that of the screw; the fixing section is connected to the screw through an inclined plane; and fixing sheets which are adaptive to the movable openings are uniformly distributed on the surface of the fixing section. The expansion screw has the beneficial effects that the structural design is reasonable, and the fixing effect of the expansion screw is strengthened, so that the expansion screw can be used for fixing in case of a relatively poor wall material.
Description
Technical field
The present invention relates to screw technical field, particularly relate to a kind of anti-shaft-rotating setscrew.
Background technology
Setscrew is widely used in daily life, also has a lot of purposes at power domain, for instance on wall, table case is fixed; Setscrew is to utilize wedge shape gradient to promote to expand generation frictional force thus reaching the effect fixed, and is briefly through locking nut and drives screw to pull outward, drawing in sleeve pipe by tapered end, making sleeve pipe distending thus being fixed on body of wall.
The installation of setscrew, need to use the percussion drilling row of corresponding size to install after burrowing, but the difference of wall hole size and materials for wall decides the good and bad of setscrew fixed effect. When running into the situation that wall hole is excessive or materials for wall is comparatively loose or soft, after setscrew hammers into body of wall, screw during locking nut, can be driven to rotate together, it is impossible to drive screw to pull outward, make sleeve pipe cannot distending, setscrew does not just reach intended fixed effect yet.
Summary of the invention
In order to solve deficiency of the prior art, the present invention provides a kind of anti-shaft-rotating setscrew, its reasonable in design, strengthens the fixed effect of setscrew so that it is still can be fixed when materials for wall is poor.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of anti-shaft-rotating setscrew, including sleeve pipe, screw rod and the nut suitable with this screw rod, a pad it is additionally provided with between described nut and sleeve pipe, it is characterized in that: in the middle part of described sleeve surface, be evenly distributed with at least two movable port, described movable port side is provided with a strip otch extended along sleeve pipe axial direction, described otch is positioned at the sleeve pipe side near screw rod end, described screw rod end is provided with a canned paragraph, the diameter of described canned paragraph is slightly larger than the diameter of screw rod, it is connected by an inclined-plane between canned paragraph with screw rod, described canned paragraph surface is evenly distributed with the stator adaptive with movable port.
Described stator is the metal sheet of an obtuse triangle shape, and the long limit of stator is vertically fixed on the canned paragraph surface of screw rod, and the second long limit of stator is positioned close to the side of screw rod end, and the 3rd long limit of stator is positioned close to the side of sleeve pipe.
The center line of the vertical direction of described movable port and the otch adaptive with described movable port and stator is located along the same line.
The invention has the beneficial effects as follows:
1, reasonable in design, this kind of anti-shaft-rotating setscrew has installed some stators additional at screw end cone place on the basis of existing setscrew, stator and canned paragraph surface are vertical angle, after hammering into body of wall, during as run into wall hole is excessive or materials for wall is comparatively loose or soft situation, the frictional force of available stator and body of wall ensures that screw rod will not rotate, and locking nut makes sleeve pipe distending thus being fixed on body of wall.
2, while, the center line of the vertical direction of the otch of stator and sleeve pipe is point-blank, it is ensured that the smooth distending of sleeve pipe, and after sleeve pipe distending, stator still can play fixation, makes setscrew more firm.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the partial structurtes schematic diagram of the present invention;
In figure: 1 nut, 2 screw rods, 3 inclined-planes, 4 canned paragraphs, 5 sleeve pipes, 6 pads, 7 movable ports, 8 otch, 9 stators.
Detailed description of the invention
Such as Fig. 1, shown in 2: a kind of anti-shaft-rotating setscrew, including sleeve pipe 5, screw rod 2 and the nut 1 suitable with this screw rod 2, a pad 6 it is additionally provided with between described nut 1 and sleeve pipe 5, wherein: described sleeve pipe 5 surface middle part is evenly distributed with two movable ports 7, two movable ports 7 prolong the distribution of sleeve pipe 5 centrosymmetry, it is positioned in the middle part of sleeve pipe 5, described movable port 7 side is provided with a strip otch 8 extended along sleeve pipe 5 axial direction, described otch 8 is positioned at the sleeve pipe 5 side near screw rod 2 end, described screw rod 2 end is provided with a canned paragraph 4, the diameter of described canned paragraph 4 is slightly larger than the diameter of screw rod 2, it is connected by an inclined-plane 3 between canned paragraph 4 with screw rod 2, described canned paragraph 4 surface is evenly distributed with two stators 9 with movable port 7 adaptation, the anti-shaft-rotating setscrew of said structure is after hammering into body of wall, during as run into wall hole is excessive or materials for wall is comparatively loose or soft situation, the frictional force of available stator 9 and body of wall ensures that screw rod 2 will not rotate, and locking nut 1 makes sleeve pipe 5 distending thus being fixed on body of wall.
The described metal sheet that stator 9 is an obtuse triangle shape, the long limit of stator 9 is vertically fixed on canned paragraph 4 surface of screw rod 2, second long limit of stator 9 is positioned close to the side of screw rod 2 end, 3rd long limit of stator 9 is positioned close to the side of sleeve pipe 5, makes stator 9 be easily accessible wall hole.
Described movable port 7 and the center line with the otch 8 of described movable port 7 adaptation and the vertical direction of stator 9 are located along the same line, ensure that the smooth distending of sleeve pipe 5, and stator 9 still can play fixation after sleeve pipe 5 distending, make setscrew more firm.
The foregoing is only the preferred embodiments of the present invention, as long as realizing purpose of the present invention technical scheme with essentially identical means, broadly falling within protection scope of the present invention.
Claims (3)
1. an anti-shaft-rotating setscrew, including sleeve pipe (5), screw rod (2) and the nut (1) suitable with this screw rod (2), it is additionally provided with a pad (6) between described nut (1) and sleeve pipe (5), it is characterized in that: described sleeve pipe (5) surface middle part is evenly distributed with at least two movable port (7), described movable port (7) side is provided with a strip otch (8) extended along sleeve pipe (5) axial direction, described otch (8) is positioned at the sleeve pipe (5) side near screw rod (2) end, described screw rod (2) end is provided with a canned paragraph (4), the diameter of described canned paragraph (4) is slightly larger than the diameter of screw rod (2), it is connected by an inclined-plane (3) between canned paragraph (4) with screw rod (2), described canned paragraph (4) surface is evenly distributed with the stator (9) adaptive with movable port (7).
2. anti-shaft-rotating setscrew according to claim 1, it is characterized in that: the described metal sheet that stator (9) is an obtuse triangle shape, the long limit of stator (9) is vertically fixed on canned paragraph (4) surface of screw rod (2), second long limit of stator (9) is positioned close to the side of screw rod (2) end, and the 3rd long limit of stator (9) is positioned close to the side of sleeve pipe (5).
3. anti-shaft-rotating setscrew according to claim 1, it is characterised in that: the center line of the vertical direction of described movable port (7) and the otch (8) adaptive with described movable port (7) and stator (9) is located along the same line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410622753.6A CN105626643A (en) | 2014-11-08 | 2014-11-08 | Expansion screw capable of preventing axial rotation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410622753.6A CN105626643A (en) | 2014-11-08 | 2014-11-08 | Expansion screw capable of preventing axial rotation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105626643A true CN105626643A (en) | 2016-06-01 |
Family
ID=56041879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410622753.6A Pending CN105626643A (en) | 2014-11-08 | 2014-11-08 | Expansion screw capable of preventing axial rotation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105626643A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2094641U (en) * | 1991-05-20 | 1992-01-29 | 杨宪生 | Expansion bolt with key |
| CN201582266U (en) * | 2009-12-25 | 2010-09-15 | 赵庆义 | Implanted expansion screw |
| CN103429913A (en) * | 2011-03-23 | 2013-12-04 | 喜利得股份公司 | Expansion anchor |
| US20140079496A1 (en) * | 2012-09-20 | 2014-03-20 | Robert Cousineau | Self-undercut expansion anchor insertion system |
| CN203730494U (en) * | 2014-03-13 | 2014-07-23 | 温州市强杰不锈钢标准件有限公司 | Universal expansion screw |
| CN204239408U (en) * | 2014-11-08 | 2015-04-01 | 国网山东齐河县供电公司 | Anti-axle turns setscrew |
-
2014
- 2014-11-08 CN CN201410622753.6A patent/CN105626643A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2094641U (en) * | 1991-05-20 | 1992-01-29 | 杨宪生 | Expansion bolt with key |
| CN201582266U (en) * | 2009-12-25 | 2010-09-15 | 赵庆义 | Implanted expansion screw |
| CN103429913A (en) * | 2011-03-23 | 2013-12-04 | 喜利得股份公司 | Expansion anchor |
| US20140079496A1 (en) * | 2012-09-20 | 2014-03-20 | Robert Cousineau | Self-undercut expansion anchor insertion system |
| CN203730494U (en) * | 2014-03-13 | 2014-07-23 | 温州市强杰不锈钢标准件有限公司 | Universal expansion screw |
| CN204239408U (en) * | 2014-11-08 | 2015-04-01 | 国网山东齐河县供电公司 | Anti-axle turns setscrew |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160601 |
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| RJ01 | Rejection of invention patent application after publication |