CN201281064Y - Wedge-type expansion screw - Google Patents
Wedge-type expansion screw Download PDFInfo
- Publication number
- CN201281064Y CN201281064Y CNU2008201411311U CN200820141131U CN201281064Y CN 201281064 Y CN201281064 Y CN 201281064Y CN U2008201411311 U CNU2008201411311 U CN U2008201411311U CN 200820141131 U CN200820141131 U CN 200820141131U CN 201281064 Y CN201281064 Y CN 201281064Y
- Authority
- CN
- China
- Prior art keywords
- screw
- wedge
- chute
- chock
- connecting hole
- 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 wedge-type expansion screw which can fix the tail part of a screw in a connecting hole by a wedge. The wedge-type expansion screw comprises a screw nut, a washer, the screw and the wedge. A chute is opened on a screw rod of the screw along the direction of the axial line, the structure of the wedge is a right-angle trapezoid, and the wedge is arranged in the chute and can slide back and forth along the chute. When in use, the chute of the screw is placed upwards, the wedge is placed at the lowest end of the chute, the screw and the wedge are inserted into the connecting hole together, and then the screw is rotated 180 DEG; at the moment, under the function of the gravity, the wedge falls off the chute and contacts with the wall of the connecting hole, and finally the screw is pulled outwards; as the wedge moves oppositely to the screw under the function of the friction, the wedge can fix the tail part of the screw in the connecting hole. When in taking out, the screw is knocked into the connecting hole and is rotated 180 DEG, and then the screw as well as the wedge can be taken out together.
Description
Technical field
The utility model relates to a kind of swell fixture, especially can the afterbody of screw be fixed on wedge-type swell fixture in the attachment hole by chock.
Background technique
At present, known swell fixture is made up of the screw and the expansion sleeve of afterbody taper, yet this expansion of structure screw is inconvenient to take out after use.
Summary of the invention
After use, be inconvenient to the deficiency of taking out in order to overcome existing swell fixture, the utility model provides a kind of wedge-type swell fixture, this wedge-type swell fixture is made up of screw that is provided with skewed slot and chock, and both can easily take out the use that can also repeat after use.
The technological scheme that its technical problem that solves the utility model adopts is: the utility model comprises mule mother, packing ring, screw and chock.Axial direction offers skewed slot in the screw rod upper edge of screw, and chock is a ladder structure of right angle, and chock is arranged in skewed slot and can slides before and after skewed slot.During use, allow the skewed slot of screw make progress, chock is placed the least significant end of skewed slot, again screw and chock are inserted in the attachment hole together, make the screw threads turnback then, at this moment, chock falls from skewed slot under the effect of gravity and contacts with the hole wall of attachment hole, at last screw is outwards pullled, owing to chock is subjected to the effect of frictional force and produces relative movement with screw, so chock will be fixed on the afterbody of screw in the attachment hole.During taking-up, knock screw in the attachment hole after, again with the screw threads turnback, screw and chock are taken out together get final product then.
The beneficial effects of the utility model are: both can easily take out the use that can also repeat after use.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the part sectioned view of the utility model plan view.
Fig. 2 is the A-A sectional view of Fig. 1.
Enforcement illustration when Fig. 3 is the utility model insertion.
Fig. 4 is the enforcement illustration of the utility model fixedly the time.
Among the figure: 1. screw.2. chock.3. skewed slot.4. attachment hole.
Embodiment
In Fig. 1, axial direction offers skewed slot 3 in the screw rod upper edge of screw 1, and chock 2 is a ladder structure of right angle, and chock 2 is arranged in skewed slot 3 and can slides along skewed slot 3 front and back.
In Fig. 2, Fig. 3, during use, allow screw 1 skewed slot 3 upwards, chock 2 is placed the least significant end of skewed slot 3, again screw 1 and chock 2 are inserted in the attachment hole 4 together, make screw 1 Rotate 180 degree then, at this moment, chock 2 falls from skewed slot 3 under the effect of gravity and contacts with the hole wall of attachment hole 4, at last screw 1 is outwards pullled, because chock 2 is subjected to the effect of frictional force and produces relative movement with screw 1, so chock 2 will be fixed on the afterbody of screw 1 in the attachment hole 4.During taking-up, knock screw 1 in the attachment hole 4 after, again with screw 1 Rotate 180 degree, screw 1 and chock 2 are taken out together get final product then.
Claims (2)
1. wedge-type swell fixture, it comprises mule mother, packing ring, screw and chock, it is characterized in that: axial direction offers skewed slot in the screw rod upper edge of screw, and chock is arranged in skewed slot and can slides before and after skewed slot.
2. wedge-type swell fixture according to claim 1 is characterized in that: described chock is a ladder structure of right angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201411311U CN201281064Y (en) | 2008-11-03 | 2008-11-03 | Wedge-type expansion screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201411311U CN201281064Y (en) | 2008-11-03 | 2008-11-03 | Wedge-type expansion screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201281064Y true CN201281064Y (en) | 2009-07-29 |
Family
ID=40927939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201411311U Expired - Fee Related CN201281064Y (en) | 2008-11-03 | 2008-11-03 | Wedge-type expansion screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201281064Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102861849A (en) * | 2011-07-08 | 2013-01-09 | 安徽安簧机械股份有限公司 | Die fastening taper key for forging hammer |
| CN103591108A (en) * | 2013-11-20 | 2014-02-19 | 河南太行振动机械股份有限公司 | Bolt capable of being quickly assembled and disassembled |
| CN104895888A (en) * | 2015-05-26 | 2015-09-09 | 中国石油天然气股份有限公司 | Horse head connecting pin |
| CN106704330A (en) * | 2016-11-11 | 2017-05-24 | 中国石油天然气股份有限公司 | Self-locking horse head pin device |
| CN108661998A (en) * | 2018-07-24 | 2018-10-16 | 海盐哈特惠机械五金制品有限公司 | A kind of modified form unilateral bolt fastener |
| CN111379775A (en) * | 2020-02-22 | 2020-07-07 | 襄阳永力通机械有限公司 | Fixed cover of round pin axle that structure is firm |
| CN112195700A (en) * | 2020-10-25 | 2021-01-08 | 王剑勇 | Ramp reinforcing and anti-collision device for road administration |
-
2008
- 2008-11-03 CN CNU2008201411311U patent/CN201281064Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102861849A (en) * | 2011-07-08 | 2013-01-09 | 安徽安簧机械股份有限公司 | Die fastening taper key for forging hammer |
| CN103591108A (en) * | 2013-11-20 | 2014-02-19 | 河南太行振动机械股份有限公司 | Bolt capable of being quickly assembled and disassembled |
| CN104895888A (en) * | 2015-05-26 | 2015-09-09 | 中国石油天然气股份有限公司 | Horse head connecting pin |
| CN106704330A (en) * | 2016-11-11 | 2017-05-24 | 中国石油天然气股份有限公司 | Self-locking horse head pin device |
| CN106704330B (en) * | 2016-11-11 | 2019-07-09 | 中国石油天然气股份有限公司 | Self-locking horse head pin device |
| CN108661998A (en) * | 2018-07-24 | 2018-10-16 | 海盐哈特惠机械五金制品有限公司 | A kind of modified form unilateral bolt fastener |
| CN108661998B (en) * | 2018-07-24 | 2024-04-02 | 浙江哈特惠科技股份有限公司 | Improved unilateral bolt fastener |
| CN111379775A (en) * | 2020-02-22 | 2020-07-07 | 襄阳永力通机械有限公司 | Fixed cover of round pin axle that structure is firm |
| CN112195700A (en) * | 2020-10-25 | 2021-01-08 | 王剑勇 | Ramp reinforcing and anti-collision device for road administration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090729 Termination date: 20091203 |