CN206206349U - A kind of outer urgent expansion bolt - Google Patents
A kind of outer urgent expansion bolt Download PDFInfo
- Publication number
- CN206206349U CN206206349U CN201621091359.5U CN201621091359U CN206206349U CN 206206349 U CN206206349 U CN 206206349U CN 201621091359 U CN201621091359 U CN 201621091359U CN 206206349 U CN206206349 U CN 206206349U
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- China
- Prior art keywords
- bulge
- outer urgent
- core
- expansion bolt
- connector
- Prior art date
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Abstract
The utility model is related to bolt field, specifically, is related to a kind of outer urgent expansion bolt.The utility model includes outer urgent pipe and plays core, and outer urgent pipe includes connecting portion and bulge, and connecting portion is provided with internal thread, and bulge is provided with least two gaps；The head insertion bulge of core is played, the head of the bullet core is extended with forward the connector of column, and the bulge is provided with and the shifting chute for being connected mates.The utility model designs connector and in bulge design shifting chute by bullet core head so that bullet core is relatively outer to compel pipe displacement, it is to avoid extrusion expansion portion is uneven.
Description
Technical field
The utility model is related to expansion bolt field, specifically, is related to a kind of outer urgent expansion bolt.
Background technology
Compel expansion bolt when in use outward, by the end face for tapping outer urgent pipe so that compel pipe outward and moved relative to the outer urgent core that plays
It is dynamic, outer urgent bullet core then by the bulge distending of outer urgent pipe and and wall connecting, the then end of outer urgent pipe and bolt connection.
When tapping outer urgent pipe, because outer urgent bullet core is not coaxially disposed with outer urgent pipe, along with the mismachining tolerance of outer urgent pipe, easily cause
It is outer to compel to play the side extruding that core outwards compels pipe, cause the deformation quantity of the side larger, when serious, outer urgent pipe ruptures, to using
Make troubles.
The content of the invention
The purpose of this utility model is to solve the deficiencies in the prior art, there is provided a kind of outer urgent expansion bolt, and this is outer urgent swollen
Swollen bolt is easy to operate.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：
A kind of outer urgent expansion bolt, including outer urgent pipe and bullet core, outer urgent pipe include connecting portion and bulge, and connecting portion is provided with
Internal thread, bulge is provided with least two gaps, plays the head insertion bulge of core, and the head of the bullet core is extended with forward post
The connector of shape, the bulge is provided with and the shifting chute for being connected mates.
Preferably, the lateral surface of bulge is provided with anti-slip tank.
Preferably, the afterbody of connector is provided with salient point, and bulge is provided with the draw-in groove being engaged with salient point.
Further, the end of bulge is bent outwardly to form back bending hook portion.
Further, bulge is provided with through hole, is provided with through hole and grabs wall nail.
Preferably, connector is provided with and grabs chute that is that wall nail is engaged and being obliquely installed.
The beneficial effects of the utility model are：The utility model designs connector and in bulge by bullet core head
Design shifting chute so that play the relatively outer urgent pipe displacement of core, it is to avoid extrusion expansion portion is uneven.
Brief description of the drawings
Fig. 1 is a kind of half-section diagram of the present utility model.
Fig. 2 is another half-section diagram of the present utility model.
Fig. 3 is enlarged diagram at A in Fig. 2.
Reference：
1 --- compels outward pipe 2 --- playing core 3 --- and grabs wall nail
11 --- connecting portion 12 --- bulge 13 --- internal threads
14 --- anti-slip tank 21 --- connector 22 --- salient points；
23 --- chute.
Specific embodiment
The utility model is described further with reference to the accompanying drawings and detailed description.
Embodiment：Referring to accompanying drawing 1 to Fig. 3.
A kind of outer urgent expansion bolt, including outer urgent pipe 1 and bullet core 2, outer urgent pipe 1 include connecting portion 11 and bulge 12, even
Socket part 11 is provided with internal thread 13, and bulge 12 is provided with least two gaps, plays the head insertion bulge 12 of core 2, the bullet core 2
Head be extended with the connector 21 of column forward, the bulge 12 is provided with the shifting chute being engaged with connector 21.Expansion
The lateral surface in portion 12 can be provided with anti-slip tank 14.
The connecting portion 11 of outer urgent pipe 1 is tapped after connector 21 is set, during use, the sabot relative 2 of outer urgent pipe 1 is moved,
Playing core 2 can move along groove movement, realize that play core 2 moves along fixed-direction relative to outer urgent pipe 1, bulge 12 can expand compared with
For uniform.Outer urgent pipe 1 is avoided to rupture.Preferably, connector 21 is in quadrangle or polygon, and the cross section of shifting chute is also in
Quadrangle or polygon.Outer urgent pipe 1 can so be avoided and core 2 is played rotate against, cause bulge 12 to be distorted deformation, it is impossible to
Combined with wall well.
Preferably, the afterbody of connector 21 is provided with salient point 22, and bulge 12 is provided with the draw-in groove being engaged with salient point 22.
Salient point 22 and draw-in groove are set so that when stored, clamping is kept between elastic and outer urgent pipe 1, it is to avoid play core 2 and depart from
Or lose.
Further, bulge 12 is provided with through hole, is provided with through hole and grabs wall nail 3.
Set through hole and grab wall nail 3 after, when resilient movement to grab wall nail 3 contact when, will progressively grab wall nail 3 eject, and
In insertion wall.
Preferably, connector 21 is provided with and grabs chute that is that wall nail 3 is engaged and being obliquely installed.When not in use, wall is grabbed
Nail 3 is located in chute 23, when using, is gradually ejected by chute 23.
Further, the end of bulge 12 is bent outwardly to form back bending hook portion.
After setting back bending hook portion, the end of bulge 12 is bent outwardly, and it is swollen that bullet core 2 easily causes that bulge 12 is bent outwardly
It is swollen；After bulge 12 outwards expansion, back bending hook portion is abutted with wall, and may be inserted in wall；It is displaced outwardly core 2 is played
When, larger frictional force is formed between bulge 12 and wall.
The above is only the preferred embodiment of the application, equivalent technical solutions on this basis still fall within application protection model
Enclose.
Claims (5)
1. a kind of outer urgent expansion bolt, including outer urgent pipe and bullet core, outer urgent pipe include connecting portion and bulge, and connecting portion is provided with interior
Screw thread, bulge is provided with least two gaps, plays the head insertion bulge of core, it is characterised in that：It is described play core head to
Before be extended with the connector of column, the bulge is provided with and the shifting chute for being connected mates.
2. a kind of outer urgent expansion bolt according to claim 1, it is characterised in that：The afterbody of connector is provided with salient point, swollen
Swollen portion is provided with the draw-in groove being engaged with salient point.
3. a kind of outer urgent expansion bolt according to claim 1, it is characterised in that：The end of bulge is bent outwardly to be formed
Back bending hook portion.
4. a kind of outer urgent expansion bolt according to claim 1, it is characterised in that：Bulge is provided with through hole, is set in through hole
Grab wall nail；Connector is provided with and grabs chute that is that wall nail is engaged and being obliquely installed.
5. a kind of outer urgent expansion bolt according to claim 1, it is characterised in that：The lateral surface of bulge is provided with anti-skidding
Groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621091359.5U CN206206349U (en) | 2016-09-29 | 2016-09-29 | A kind of outer urgent expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621091359.5U CN206206349U (en) | 2016-09-29 | 2016-09-29 | A kind of outer urgent expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206206349U true CN206206349U (en) | 2017-05-31 |
Family
ID=58761827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621091359.5U Active CN206206349U (en) | 2016-09-29 | 2016-09-29 | A kind of outer urgent expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206206349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255785A (en) * | 2019-12-11 | 2020-06-09 | 浙江航鑫支吊架有限公司 | Expansion anchor bolt for up-down double expansion of anti-seismic bracket and manufacturing method |
-
2016
- 2016-09-29 CN CN201621091359.5U patent/CN206206349U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255785A (en) * | 2019-12-11 | 2020-06-09 | 浙江航鑫支吊架有限公司 | Expansion anchor bolt for up-down double expansion of anti-seismic bracket and manufacturing method |
| CN111255785B (en) * | 2019-12-11 | 2022-01-11 | 浙江航鑫支吊架有限公司 | Expansion anchor bolt for up-down double expansion of anti-seismic bracket and manufacturing method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |