CN206159207U - End crab -bolt expands after telescopic - Google Patents
End crab -bolt expands after telescopic Download PDFInfo
- Publication number
- CN206159207U CN206159207U CN201621164836.6U CN201621164836U CN206159207U CN 206159207 U CN206159207 U CN 206159207U CN 201621164836 U CN201621164836 U CN 201621164836U CN 206159207 U CN206159207 U CN 206159207U
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- China
- Prior art keywords
- sleeve
- base expanding
- crab
- tapered cup
- cup nut
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Abstract
The utility model discloses an end crab -bolt expands after telescopic, including taper nut and sleeve, the taper nut cover slides at the inside sleeve of following of sleeve, and taper nut's front end is the toper, and its inboard is equipped with the screw thread, and taper nut's toper top external diameter is greater than the internal diameter on sleeve top, its tail end and telescopic front end grasping, and telescopic front end side is equipped with a plurality of axial breachs. The utility model discloses when reducing comprehensive cost, the factor of safety of whole crab -bolt has been increased.
Description
Technical field
This utility model is related to engineering construction field, is to be related to a kind of telescopic rear base expanding and base expanding crab-bolt specifically.
Background technology
Usually use crab-bolt in construction process to be locked.Conventional crab-bolt is exactly to be put into by drilling, crab-bolt, is led to
Crossing locking nut makes expansion piece distending reach the purpose of locking, but linear or point is only produced between expansion piece and concrete and is connect
Touch, force value is smaller, and can there is certain potential safety hazard.In addition, this kind of structure generally requires to use more thickening spiral shell
Female and fixing nut is fixedly connected, and the application for directly resulting in parts increases, and while load-bearing weight is increased, also increases
Installation and material cost.
Drawbacks described above, is worth improving.
The content of the invention
In order to overcome the shortcomings of existing technology, this utility model provides a kind of telescopic rear base expanding and base expanding crab-bolt.
Technical solutions of the utility model are as described below：
A kind of telescopic rear base expanding and base expanding crab-bolt, it is characterised in that including tapered cup nut and sleeve, the tapered cup nut and described
Sleeve is hollow structure, and the tapered cup nut is enclosed within the sleeve inner and slides along the sleeve,
The front end of the tapered cup nut is tapered, and its inner side is provided with screw thread, the conical upper exceptionally footpath of the tapered cup nut
More than the internal diameter on the sleeve top, its tail end is clasped with the front end of the sleeve, and the front end side of the sleeve is provided with some
The breach of axial direction.
According to this utility model of such scheme, it is characterised in that the tail end of the tapered cup nut is provided with what is caved inward
Groove, the front end of the sleeve is provided with the step that inwardly compacting forms internal protrusion, the step and the groove match button
Connect.
Further, size of the internal diameter of the stepped locations less than the groove front end external diameter.
According to this utility model of such scheme, it is characterised in that the tail end of the tapered cup nut is provided with outwardly
Grab, the front end of the sleeve is provided with the buckle that inwardly compacting forms internal protrusion, and the buckle and the grab match button
Connect.
Further, size of the internal diameter of the buckle less than the grab external diameter.
According to this utility model of such scheme, it is characterised in that the gap extension is to deforming agretope.
Further, the deformation agretope is interior scrobicular ring of the circle on the outside of the sleeve.
According to this utility model of such scheme, it is characterised in that the breach is 4.
According to this utility model of such scheme, its advantage is：This utility model compared with conventional crab-bolt, force value
Larger, security performance is high.Under equal applying working condition, this utility model reduces the use for adding the materials such as high nut/nut, energy
Part material is reduced, is reduced and is installed, reduce integrated cost.Tapered cup nut and sleeve snapping are not separated in this utility model, in bag
Convenient use in dress, transport and installation process.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is cross section structure schematic diagram of the present utility model.
Fig. 3 is the position view after this utility model assembling.
Fig. 4 is the structural representation of tapered cup nut in this utility model.
Fig. 5 is the structural representation of this utility model sleeve.
Fig. 6 is the cross section structure schematic diagram of this utility model middle sleeve.
Fig. 7 is the cross section structure schematic diagram of another embodiment of this utility model.
The schematic diagram that Fig. 8 is installed and used for this utility model.
In figure, 10, tapered cup nut；11st, groove；11 ', grab；12nd, screw thread；20th, sleeve；21st, step；21 ', buckle；
22nd, interior scrobicular ring；23rd, breach；30th, mounting hole site；41st, suspension rod；42nd, nut；43rd, plain washer.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment is conducted further description to this utility model：
Embodiment one
As shown in figures 1 to 6, a kind of telescopic rear base expanding and base expanding crab-bolt, including tapered cup nut 10 and sleeve 20, the He of tapered cup nut 10
Sleeve 20 is hollow structure, and tapered cup nut 10 is enclosed within the inside of sleeve 20 and slides along sleeve 20.
The front end of tapered cup nut 10 is tapered, and its inner side is provided with screw thread 12, and the conical upper exceptionally footpath of tapered cup nut 10 is big
In the internal diameter on the top of sleeve 20, its tail end is clasped with the front end of sleeve 20, and the front end side of sleeve 20 is provided with some axial lacking
Mouth 23.
In the present embodiment, the tail end of tapered cup nut 10 is provided with the groove 11 for caving inward, the front end of sleeve 20 be provided with to
Interior compacting forms the step 21 of internal protrusion, and step 21 and groove 11 match snapping, and the internal diameter of the position of step 21 is less than groove
The size of 11 front end external diameters.Groove 11 on tapered cup nut 11 is used cooperatively with the step 21 of the inner side of sleeve 20, on sleeve 20
The hole internal diameter of step 21 assembled and can be rotated between latter two material less than the front end external diameter size of groove 11 of tapered cup nut 10, but
It is to separate.
The front end of sleeve 20 is provided with some axial breach 23, and breach 23 extends to deformation agretope.Deforming agretope is
Interior scrobicular ring 22 of one circle on the outside of sleeve.Preferably, breach 23 is 4.
Embodiment two
As shown in fig. 7, from unlike embodiment one, in the present embodiment, the tail end of tapered cup nut 10 is provided with convex
The grab 11 ' for going out, the front end of sleeve 20 is provided with the buckle 21 ' that inwardly compacting forms internal protrusion, buckle 21 ' and the phase of grab 11 '
Matching snapping, the internal diameter of buckle 21 ' is less than the size of the external diameter of grab 11 '.Grab 11 ' on tapered cup nut 10 and the inner side of sleeve 20
Buckle 21 ' use cooperatively, the hole of the buckle 21 ' internal diameter on sleeve 20 less than tapered cup nut 10 grab 11 ' outside dimension, dress
Can rotate between latter two material, but will not separate.
As shown in figure 8, by specific purpose tool having processed (the particularly conical position of crab-bolt mounting hole site 30 before assembling
Use cooperatively with telescopic crab-bolt)；The front end of sleeve 20 is expanded by special percussion instrument, screws in suspension rod 41, then by spiral shell
Female 42 locking flat washers 43 are formed with individual entirety.Because concrete processes in advance bullet, there is larger deformation the front end of sleeve 20
Amount, can carry larger force value.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or be converted,
And all these modifications and variations should all belong to the protection domain of this utility model claims.
Exemplary description is carried out to this utility model patent above in conjunction with accompanying drawing, it is clear that the reality of this utility model patent
Now it is not subject to the restrictions described above, as long as the method design for employing this utility model patent is various with what technical scheme was carried out
Improve, or it is not improved the design of this utility model patent and technical scheme are directly applied to into other occasions, in this reality
With in new protection domain.
Claims (8)
1. a kind of telescopic rear base expanding and base expanding crab-bolt, it is characterised in that including tapered cup nut and sleeve, the tapered cup nut and the set
Cylinder is hollow structure, and the tapered cup nut is enclosed within the sleeve inner and slides along the sleeve,
The front end of the tapered cup nut is tapered, and its inner side is provided with screw thread, and the conical upper exceptionally footpath of the tapered cup nut is more than
The internal diameter on the sleeve top, its tail end is clasped with the front end of the sleeve, and the front end side of the sleeve is provided with some axial directions
Breach.
2. telescopic rear base expanding and base expanding crab-bolt according to claim 1, it is characterised in that the tail end of the tapered cup nut be provided with to
The groove of sunken inside, the front end of the sleeve is provided with the step that inwardly compacting forms internal protrusion, the step and the groove
Match snapping.
3. telescopic rear base expanding and base expanding crab-bolt according to claim 2, it is characterised in that the internal diameter of the stepped locations is less than institute
State the size of groove front end external diameter.
4. telescopic rear base expanding and base expanding crab-bolt according to claim 1, it is characterised in that the tail end of the tapered cup nut be provided with to
The grab of outer protrusion, the front end of the sleeve is provided with the buckle that inwardly compacting forms internal protrusion, the buckle and the grab
Match snapping.
5. telescopic rear base expanding and base expanding crab-bolt according to claim 4, it is characterised in that the internal diameter of the buckle is less than the card
The size of hook external diameter.
6. telescopic rear base expanding and base expanding crab-bolt according to claim 1, it is characterised in that the gap extension is to deforming restriction
Position.
7. telescopic rear base expanding and base expanding crab-bolt according to claim 6, it is characterised in that the deformation agretope is that a circle is located at
Interior scrobicular ring on the outside of the sleeve.
8. telescopic rear base expanding and base expanding crab-bolt according to claim 1, it is characterised in that the breach is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621164836.6U CN206159207U (en) | 2016-11-02 | 2016-11-02 | End crab -bolt expands after telescopic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621164836.6U CN206159207U (en) | 2016-11-02 | 2016-11-02 | End crab -bolt expands after telescopic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206159207U true CN206159207U (en) | 2017-05-10 |
Family
ID=58654586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621164836.6U Active CN206159207U (en) | 2016-11-02 | 2016-11-02 | End crab -bolt expands after telescopic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206159207U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108951619A (en) * | 2018-09-19 | 2018-12-07 | 武大巨成结构股份有限公司 | A kind of self-locking anchor head of easy expanding and expanding method |
-
2016
- 2016-11-02 CN CN201621164836.6U patent/CN206159207U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108951619A (en) * | 2018-09-19 | 2018-12-07 | 武大巨成结构股份有限公司 | A kind of self-locking anchor head of easy expanding and expanding method |
| CN108951619B (en) * | 2018-09-19 | 2022-09-02 | 武大巨成结构股份有限公司 | Easy-to-expand self-locking anchor head and hole expanding method |
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