CN205559604U - From reaming crab -bolt - Google Patents
From reaming crab -bolt Download PDFInfo
- Publication number
- CN205559604U CN205559604U CN201620302820.0U CN201620302820U CN205559604U CN 205559604 U CN205559604 U CN 205559604U CN 201620302820 U CN201620302820 U CN 201620302820U CN 205559604 U CN205559604 U CN 205559604U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- bolt
- nut
- expandable casing
- expansion sleeve
- 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
Links
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- Joining Of Building Structures In Genera (AREA)
Abstract
The utility model belongs to the field of machinery, concretely relates to from reaming crab -bolt, it includes screw rod and expandable casing, and the one end of screw rod is the conical body, and the other end of screw rod is equipped with the external screw thread, and expandable casing's internal diameter is clearance fit with the external diameter of screw rod, and expandable casing's one end symmetry is equipped with four logical grooves, and the screw rod cup joints with expandable casing, and the conical body of screw rod is adjacent with expandable casing's logical groove, and the other end and the nut cooperation of screw rod are equipped with the gasket between nut and expandable casing. The utility model discloses a from reaming crab -bolt has following beneficial effect: 1, simple structure, 2, be convenient for be under construction, 3, construction cost is low.
Description
Technical field
The utility model belongs to mechanical field, is specifically related to a kind of from reaming crab-bolt.
Background technology
Crab-bolt is a kind of novel metal fastener material, and it can be used for various curtain wall, marble is done
Adding embedded part after hanging in construction to install it can also be used to equipment is installed, highway, Bridge guardrail are installed；
The occasions such as concrete structure reinforcement.
From reaming crab-bolt, it it is a kind of bolt without swelling stress with expansion sleeve.In the market
Self undercut anchor often have a following weak point: 1, be not easy to construction；2, construction cost
High.
Utility model content
Utility model purpose: the utility model is made for the problem that above-mentioned prior art exists and being changed
Enter, i.e. the utility model discloses from reaming crab-bolt.
Technical scheme: from reaming crab-bolt, including screw rod and expansion sleeve,
One end of described screw rod is bullet, and the other end of described screw rod is provided with external screw thread,
The internal diameter of described expansion sleeve is matched in clearance with the external diameter of described screw rod, described expansion sleeve
One end of pipe is arranged with four grooves,
Described screw rod is socketed with described expansion sleeve, the bullet of described screw rod and described expansion sleeve
The groove of pipe is adjacent, the other end of described screw rod and nut screw connection, swollen with described at described nut
It is provided with pad between expansion set pipe.
Further, a diameter of the 3～5mm of described groove.
Further, described nut is hex nut or octagon nut.
Beneficial effect: the utility model is disclosed to be had the advantages that from reaming crab-bolt
1, simple in construction；
2, it is easy to construction；
3, construction cost is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of screw rod；
Fig. 2 is the structural representation of sleeve pipe；
Fig. 3 is that the utility model is disclosed from the structural representation of reaming crab-bolt；
Wherein:
1-screw rod 2-expansion sleeve
3-pad 4-nut
11-external screw thread 21-groove
Detailed description of the invention:
Below detailed description of the invention of the present utility model is described in detail.
Specific embodiment 1
As shown in Figures 1 to 3, from reaming crab-bolt, including screw rod 1 and expansion sleeve 2,
One end of screw rod 1 is bullet, and the other end of screw rod 1 is provided with external screw thread 11,
The internal diameter of expansion sleeve 2 is matched in clearance with the external diameter of screw rod 1, the one of expansion sleeve 2
End is arranged with four grooves 21,
Screw rod 1 is socketed with expansion sleeve 2, the bullet of screw rod 1 and the groove of expansion sleeve 2
21 is adjacent, and the other end of screw rod 1 coordinates with nut 4, nut 4 and expansion sleeve 2 it
Between be provided with pad 3.
Further, a diameter of 3mm of groove 21.
Further, nut 4 is hex nut.
Specific embodiment 2
Roughly the same with specific embodiment 1, differ only in:
A diameter of 5mm of groove 21.
Nut 4 is octagon nut.
Specific embodiment 3
Roughly the same with specific embodiment 1, differ only in:
A diameter of 4mm of groove 21.
Nut 4 is octagon nut.
Above embodiment of the present utility model is elaborated.But the utility model is also
It is not limited to above-mentioned embodiment, at the knowledge model that art those of ordinary skill is possessed
In enclosing, it is also possible to make a variety of changes on the premise of without departing from the utility model objective.
Claims (3)
1. from reaming crab-bolt, it is characterised in that include screw rod and expansion sleeve,
One end of described screw rod is bullet, and the other end of described screw rod is provided with external screw thread,
The internal diameter of described expansion sleeve is matched in clearance with the external diameter of described screw rod, described expansion sleeve
One end of pipe is arranged with four grooves,
Described screw rod is socketed with described expansion sleeve, the bullet of described screw rod and described expansion sleeve
The groove of pipe is adjacent, the other end of described screw rod and nut screw connection, swollen with described at described nut
It is provided with pad between expansion set pipe.
The most according to claim 1 from reaming crab-bolt, it is characterised in that described groove
A diameter of 3～5mm.
The most according to claim 1 from reaming crab-bolt, it is characterised in that described nut
For hex nut or octagon nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620302820.0U CN205559604U (en) | 2016-04-12 | 2016-04-12 | From reaming crab -bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620302820.0U CN205559604U (en) | 2016-04-12 | 2016-04-12 | From reaming crab -bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205559604U true CN205559604U (en) | 2016-09-07 |
Family
ID=56811662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620302820.0U Expired - Fee Related CN205559604U (en) | 2016-04-12 | 2016-04-12 | From reaming crab -bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205559604U (en) |
-
2016
- 2016-04-12 CN CN201620302820.0U patent/CN205559604U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20170412 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |