CN207526838U - A kind of releasable expansion bolt - Google Patents
A kind of releasable expansion bolt Download PDFInfo
- Publication number
- CN207526838U CN207526838U CN201721670412.1U CN201721670412U CN207526838U CN 207526838 U CN207526838 U CN 207526838U CN 201721670412 U CN201721670412 U CN 201721670412U CN 207526838 U CN207526838 U CN 207526838U
- Authority
- CN
- China
- Prior art keywords
- expansion bolt
- tailstock
- pushing block
- pull rod
- mast
- 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 discloses a kind of expansion bolt, particularly a kind of releasable expansion bolt belongs to anchoring piece technical field.A kind of releasable expansion bolt of the utility model, including pull rod and the tailstock to take the shape of the letter U, the pull rod includes big mast and pillar rod into a ladder, the base of the tailstock offers stepped hole, the small mast of the pull rod passes through stepped hole, and a part for big mast is limited in stepped hole, another part is located between the two sides of tailstock；Guide chute is offered on the inner wall of the two sides of the tailstock, pushing block is equipped on the guide chute, pushing block is connected with big mast by screw thread；At least one shearing piece is further included, between the shearing piece is rotatably assemblied in the two sides of tailstock by connector, pushing block is located between shearing piece and the base of tailstock.When the expansion bolt is installed in porthole, expansion effect is good, can bear larger pulling force；It when need to remove, can completely be removed out of porthole, repeat and utilize, economize on resources.
Description
Technical field
The utility model is related to a kind of expansion bolt, particularly a kind of releasable expansion bolt belongs to anchoring piece technology
Field.
Background technology
Expansion bolt of the prior art is mainly made of base shaft 8, expansion tube 9, nut 6 and plain washer 61, the base shaft 8 one
Tapering point, the other end to gradually increase is held to be threaded, as shown in Figure 6.By rotating nuts during use, base shaft 8 is driven
Tapering point moved to expansion tube 9, push expansion tube 9 expand, the expansion bolt so as to make is held out against in porthole.But due to this
Expansion bolt is to strut expansion tube by the outer shifting of base shaft to realize that its is fixed, and the requirement expansion tube for being just is yielding
The thin casing of aluminum, is easily damaged, and in a manner that base shaft pushes expansion tube so that expansion diameter is limited so that the type is swollen
The pulling force that swollen bolt can be born is small, and integral strength is relatively low, and use scope is very restricted, and traditional expansion bolt is difficult to
It is whole to be removed out of porthole, it is difficult to reuse, certain waste will be generated.
Invention content
The goal of the invention of the utility model is：In view of the above problems, a kind of releasable expansion bolt is provided,
The utility model is easy to use, reliability and durability, highly practical；When the expansion bolt of the utility model is installed in porthole, cut
Slice can generate larger " swell diameter ", and expansion effect is good, can bear larger pulling force；When needing to remove the expansion
During bolt, expansion bolt can be removed completely out of porthole so that the expansion bolt of the utility model can reuse, section
About resource.
The technical solution adopted in the utility model is as follows：
A kind of releasable expansion bolt, including pull rod and the tailstock to take the shape of the letter U, which includes big mast and pillar rod
Into a ladder, the base of the tailstock offers the stepped hole to match with the stepped pull rod, and the small mast of the pull rod passes through
Stepped hole, a part for big mast is limited in stepped hole, another part is located between the two sides of tailstock；The tailstock
Guide chute is offered on the inner wall of two sides, being equipped on the guide chute can push away along the guide chute is reciprocating
Block, and the pushing block is connected through a screw thread mode with the big mast of pull rod and is connected；Further include the shearing piece of at least one strip, institute
It states between shearing piece is assemblied in the two sides of tailstock by connector, and shear piece to rotate on the connector, the pushing block
Between shearing piece and the base of tailstock, and pushing block can push shearing piece rotation.
When the expansion bolt of the utility model is installed in porthole, the expansion bolt is made to be in original state, i.e. pushing block
It is close（Or it is close to）The base of tailstock, shearing piece are inclined close（Or it is close to）Pushing block；Then tailstock is inserted into porthole, then
Continuous rotating rod, by screw drive mode pushing block along guide chute gradually to shearing piece move, pushing block push
Shearing piece rotates on connector, up to shearing piece holding out against in porthole wall tightly, that is, realizes and is installed on the expansion bolt
In porthole.Shearing piece can generate larger " swell diameter ", and expansion effect is good, can bear larger pulling force.Work as needs
When removing the expansion bolt, reversely rotate pull rod and pushing block is moved closer to（Or it is close to）The base of tailstock, at this point, shearing piece loses
The support of pushing block has been gone, has then pushed and shoved expansion bolt repeatedly along the axial direction of expansion bolt so that shearing piece is detached from porthole wall, you can
Realization removes the expansion bolt out of porthole.
A kind of releasable expansion bolt of the utility model, the shearing piece have 2, and two shearing pieces pass through the connection
Part is series between the two sides of tailstock, and two shearing pieces are in cross-distribution.Enable expansion bolt more firmly hold out against in
In porthole wall.
A kind of releasable expansion bolt of the utility model, the shearing piece assume diamond in shape shape or ellipticity.
A kind of releasable expansion bolt of the utility model is additionally provided with magnet close to the pushing block end of shearing piece.Have
Conducive to the expansion bolt of the utility model is made to return original state, under the action of the magnetic force generated in magnet, it is close to shearing piece
Pushing block so that the expansion bolt of the utility model is more convenient to use.
A kind of releasable expansion bolt of the utility model, the connector are rivet.
A kind of releasable expansion bolt of the utility model is connected through a screw thread mode on the small mast of the pull rod and connects
It is connected to nut.After the expansion bolt of the utility model is installed in porthole, nut is tightened to wall, can block porthole and
Expansion bolt can also further be made more firmly to hold out against in porthole wall.
Further, plain washer is further sleeved on the small mast of the pull rod, which is located at nut close to nut
Between tailstock.
A kind of releasable expansion bolt of the utility model, the end of the small mast of the pull rod has draws for rotating
The grip block of bar.Rotating rod is convenient in the design of grip block.
Further, it is set with elastic end cap on the grip block.The end cap of elasticity can very easily be set in clamping
It on block, also allows for removing end cap, makes the utility model more beautiful, simultaneously as the end cap of elasticity is by the folder of tie rod end
It holds block to wrap, when accidentally colliding tie rod end, the damage to human body can be reduced.
A kind of releasable expansion bolt of the utility model, the pushing block is rectangular, has on an opposite side of the pushing block
Guide rail, the guide rail are slidably assemblied in guide chute, to realize that pushing block can be reciprocating along guide chute.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are：
A kind of releasable expansion bolt of the utility model, the utility model is easy to use, reliability and durability, practicability
By force；When the expansion bolt of the utility model is installed in porthole, shearing piece can generate larger " swell diameter ", swollen
Swollen effect is good, can bear larger pulling force；When needing to remove the expansion bolt, expansion bolt can completely be torn open out of porthole
It removes so that the expansion bolt of the utility model can reuse, and economize on resources.
Description of the drawings
Fig. 1 is the stereoscopic schematic diagram of releasable expansion bolt;
Fig. 2 be releasable expansion bolt in original state when sectional view;
Fig. 3 is sectional view when releasable expansion bolt is installed in porthole wall（Porthole not shown）;
Fig. 4 is the sectional view of tailstock;
Fig. 5 is the stereoscopic schematic diagram of pushing block;
Fig. 6 is the structure diagram of expansion bolt of the prior art.
It is marked in figure：The big mast of 1- pull rods, 11-, the small masts of 12-, 2- tailstocks, 21- stepped holes, 22- guide chutes, 3- are pushed away
Block, 31- kicker magnets, 32- guide rails, 4- shearing piece, 5- connectors, 6- nuts, 61- plain washers, 62- spring washers, 7- grip blocks,
71- end caps, 8- base shafts, 9- expansion tubes.
Specific embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Figures 1 to 5, a kind of releasable expansion bolt of the present embodiment, including pull rod 1 and the tailstock to take the shape of the letter U
2, which includes big mast 11 and small mast 12 and is formed stepped, and the base of the tailstock 2 offers and the stepped pull rod 1
The stepped hole 21 to match, the small mast 12 of the pull rod 1 pass through stepped hole 21, and a part for big mast 11 is limited in ladder
Hole 21 is interior, another part is located between the two sides of tailstock 2；Guide chute is offered on the inner wall of the two sides of the tailstock 2
22, being equipped on the guide chute 22 can be along the reciprocating pushing block 3 of the guide chute 22, and the pushing block 3 and pull rod 2
Big mast 11 is connected through a screw thread mode and is connected；The shearing piece 4 of at least one strip is further included, the shearing piece 4 passes through connection
Part 5 is assemblied between the two sides of tailstock 2, and shearing piece 4 can rotate on the connector 5, and the pushing block 3 is located at shearing piece 4
Between the base of tailstock 2, and pushing block 3 can push shearing piece 4 to rotate.
When the expansion bolt of the utility model is installed in porthole, the expansion bolt is made to be in original state, i.e. pushing block 3
It is close（Or it is close to）The base of tailstock 2, shearing piece 4 are inclined close（Or it is close to）Pushing block 3；Then tailstock 2 is inserted into porthole,
Then continuous rotating rod 1, by screw drive mode pushing block 3 along guide chute 22 gradually to shearing piece 4 move,
Pushing block 3 pushes shearing piece 4 to be rotated on connector 5, up to shearing piece 4 holding out against in porthole wall tightly, that is, realizes this is swollen
Swollen bolt is installed in porthole.Shearing piece 4 can generate larger " swell diameter ", and expansion effect is good, can bear larger
Pulling force.When needing to remove the expansion bolt, pull rod 1 is reversely rotated so that pushing block 3 moves closer to（Or it is close to）The bottom of tailstock 2
Expansion bolt at this point, shearing piece 4 loses the support of pushing block 3, is then pushed and shoved so that cut in side repeatedly along the axial direction of expansion bolt
Slice 4 is detached from porthole wall, you can realizes and removes the expansion bolt out of porthole.
Further optimization based on the present embodiment, in another embodiment, as depicted in figs. 1 and 2, the shearing piece 4
There are 2, between two shearing pieces 4 are series at the two sides of tailstock 2 by the connector 5, and two shearing pieces 4 are in cross-distribution.
Expansion bolt is enable more firmly to hold out against in porthole wall.Certainly, shearing piece 4 can also have 1,3,4 or with more
It is a.
Further optimization based on the present embodiment, in another embodiment, the shearing piece 4 assume diamond in shape shape or ellipse
Shape.When shearing piece 4 assumes diamond in shape shape, it is preferred that be rounded down at the acute angle of shearing piece 6, as shown in Figures 2 and 3.
Further optimization based on the present embodiment, it is in another embodiment, close to cut as shown in Fig. 1 to Fig. 3 and Fig. 5
3 end of pushing block of slice 4 is additionally provided with magnet 31.Be conducive to make the expansion bolt of the utility model to return original state, in magnetic
Under the action of the magnetic force that body 31 generates, shearing piece 4 is made to be close to pushing block 3 so that the expansion bolt use of the utility model is more square
Just.
Further optimization based on the present embodiment, in another embodiment, the connector 5 are rivet.Certainly connection
Part 5 can also be the connectors such as pin, bolt.
Further optimization based on the present embodiment, in another embodiment, as shown in Figure 1 to Figure 3, the pull rod 1
Mode, which is connected through a screw thread, on small mast 12 is connected with nut 6.After the expansion bolt of the utility model is installed in porthole, by spiral shell
Mother 6 is screwed to wall, can block porthole and expansion bolt can also further be made more firmly to hold out against in porthole wall.
Further, in another embodiment, as shown in Figure 1 to Figure 3, it is further sleeved on the small mast 12 of the pull rod 1
Plain washer 61, the plain washer 61 is close to nut 6 between nut 6 and tailstock 2.Nut 6 and plain washer 61 can be split
Or integral structure.It is selectable when nut 6 and plain washer 61 are structure as a whole, it is additionally provided between nut 6 and plain washer 61
Spring washer 62.
Further optimization based on the present embodiment, in another embodiment, as shown in Figure 1 to Figure 3, the pull rod 1
The end of small mast 12 has the grip block 7 for rotating rod.Rotating rod 1 is convenient in the design of grip block 7, is such as carved into and passes through
Spanner clamping simultaneously rotates grip block 7 so that pull rod 1 rotates.Preferably, grip block 7 is rectangular-shaped, it is, of course, also possible to be other
The structure of multilateral shape.
Further, in another embodiment, as shown in Figures 2 and 3, it is set with elastic end cap 71 on the grip block 7.
The end cap 71 of elasticity can be very easily set on grip block 7, also allowed for removing end cap 71, made the utility model more beautiful
It sees, simultaneously as the end cap 71 of elasticity wraps the grip block 7 of 1 end of pull rod, when accidentally colliding 1 end of pull rod, energy
Enough damages reduced to human body.
Further optimization based on the present embodiment, it is in another embodiment, described to push away as shown in Fig. 1 to Fig. 3 and Fig. 5
Block 3 is rectangular, has guide rail 32 on an opposite side of the pushing block 3, and the guide rail 32 is slidably assemblied in guide chute 22, with
Realize that pushing block 3 can be reciprocating along guide chute 22.When the design of magnet 31 is combined, magnet 31 is set to be pushed away the design
On another opposite side of block 3.It is of course also possible to not use the design of guide rail 32, and pushing block 3 is made directly slidably to be assemblied in guiding
In sliding slot 22.
In conclusion using a kind of releasable expansion bolt of the utility model, the utility model is easy to use, reliably
It is durable, it is highly practical；When the expansion bolt of the utility model is installed in porthole, shearing piece can generate larger
" swell diameter ", expansion effect is good, can bear larger pulling force；When needing to remove the expansion bolt, expansion bolt can be complete
It is removed in whole slave porthole so that the expansion bolt of the utility model can reuse, and economize on resources.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of releasable expansion bolt, it is characterised in that：Including pull rod（1）With the tailstock to take the shape of the letter U（2）, the pull rod（1）Packet
Include big mast（11）With small mast（12）Form stepped, the tailstock（2）Base offer and the stepped pull rod（1）Phase
The stepped hole matched（21）, the pull rod（1）Small mast（12）Across stepped hole（21）, big mast（11）A part be limited
In stepped hole（21）Interior, another part is located at tailstock（2）Two sides between；
The tailstock（2）Two sides inner wall on offer guide chute（22）, the guide chute（22）On be equipped with can
Along the guide chute（22）Reciprocating pushing block（3）, and the pushing block（3）With pull rod（1）Big mast（11）Pass through screw thread
Connection mode is connected；
Further include the shearing piece of at least one strip（4）, the shearing piece（4）Pass through connector（5）It is assemblied in tailstock（2）'s
Between two sides, and shear piece（4）It can be in the connector（5）Upper rotation, the pushing block（3）Positioned at shearing piece（4）With tailstock（2）
Base between, and pushing block（3）Shearing piece can be pushed（4）Rotation.
2. a kind of releasable expansion bolt as described in claim 1, it is characterised in that：The shearing piece（4）There are 2, two
Shear piece（4）Pass through the connector（5）It is series at tailstock（2）Two sides between, and two shearing pieces（4）In cross-distribution.
3. a kind of releasable expansion bolt as described in claim 1, it is characterised in that：The shearing piece（4）Assume diamond in shape shape
Or ellipticity.
4. a kind of releasable expansion bolt as described in claim 1, it is characterised in that：Close to shearing piece（4）Pushing block（3）
End is additionally provided with magnet（31）.
5. a kind of releasable expansion bolt as described in claim 1, it is characterised in that：The connector（5）For rivet.
6. a kind of releasable expansion bolt as described in claim 1, it is characterised in that：The pull rod（1）Small mast
（12）On be connected through a screw thread mode and be connected with nut（6）.
7. a kind of releasable expansion bolt as claimed in claim 6, it is characterised in that：The pull rod（1）Small mast
（12）On be further sleeved with plain washer（61）, the plain washer（61）Close to nut（6）Be located at nut（6）With tailstock（2）Between.
8. a kind of releasable expansion bolt as described in claim 1, it is characterised in that：The pull rod（1）Small mast
（12）End have for rotating rod grip block（7）.
9. a kind of releasable expansion bolt as claimed in claim 8, it is characterised in that：The grip block（7）On be set with
Elastic end cap（71）.
10. a kind of releasable expansion bolt as described in claim 1, it is characterised in that：The pushing block（3）It is rectangular, it should
Pushing block（3）An opposite side on have guide rail（32）, the guide rail（32）Slidably it is assemblied in guide chute（22）It is interior, to realize
Pushing block（3）It can be along guide chute（22）It is reciprocating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721670412.1U CN207526838U (en) | 2017-12-05 | 2017-12-05 | A kind of releasable expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721670412.1U CN207526838U (en) | 2017-12-05 | 2017-12-05 | A kind of releasable expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207526838U true CN207526838U (en) | 2018-06-22 |
Family
ID=62578808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721670412.1U Expired - Fee Related CN207526838U (en) | 2017-12-05 | 2017-12-05 | A kind of releasable expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207526838U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255786A (en) * | 2020-04-01 | 2020-06-09 | 夏俊文 | Slider formula expansion bolts |
| CN111350737A (en) * | 2020-04-02 | 2020-06-30 | 赵秀菊 | Spiral expansion bolt |
| CN114046300A (en) * | 2021-10-26 | 2022-02-15 | 东风柳州汽车有限公司 | Unthreaded hole locking device |
| CN114060378A (en) * | 2021-11-08 | 2022-02-18 | 中国一冶集团有限公司 | Embedded installation structure and installation method |
-
2017
- 2017-12-05 CN CN201721670412.1U patent/CN207526838U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255786A (en) * | 2020-04-01 | 2020-06-09 | 夏俊文 | Slider formula expansion bolts |
| CN111255786B (en) * | 2020-04-01 | 2021-12-31 | 金华市荣创五金工具有限公司 | Slider formula expansion bolts |
| CN111350737A (en) * | 2020-04-02 | 2020-06-30 | 赵秀菊 | Spiral expansion bolt |
| CN114046300A (en) * | 2021-10-26 | 2022-02-15 | 东风柳州汽车有限公司 | Unthreaded hole locking device |
| CN114060378A (en) * | 2021-11-08 | 2022-02-18 | 中国一冶集团有限公司 | Embedded installation structure and installation method |
| CN114060378B (en) * | 2021-11-08 | 2023-10-24 | 中国一冶集团有限公司 | Pre-buried mounting structure and mounting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180622 Termination date: 20211205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |