CN207848131U - A kind of three-stage expansion anchor - Google Patents
A kind of three-stage expansion anchor Download PDFInfo
- Publication number
- CN207848131U CN207848131U CN201721718033.5U CN201721718033U CN207848131U CN 207848131 U CN207848131 U CN 207848131U CN 201721718033 U CN201721718033 U CN 201721718033U CN 207848131 U CN207848131 U CN 207848131U
- Authority
- CN
- China
- Prior art keywords
- expansion
- expansion tube
- claw
- tube
- tail portion
- 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 is related to a kind of three-stage expansion anchors, including bolt, expansion tube, expansion tube includes expansion piece, expansion tube tail portion is equipped with circumferential band, expansion tube head inner sleeve has expansion nut, expansion piece head on both sides are equipped with oblique contraction front, oblique contraction front on two neighboring expansion piece forms V-notch, it is convex that expansion nut outer wall is equipped with point, expansion piece both sides are equipped with antiskid claw, i.e. sharp convex point convex both sides when travelling forward are equipped with limiting plate outwardly against antiskid claw, expansion piece front end, and the expansion tube of V-notch tail portion is cased with quoit.The utility model pieces together expansion tube using the expansion piece of four splits and circumferential band and quoit is respectively set in expansion tube tail portion and head, ensure the stability of expansion tube, it is simple in structure, it is easy to process, it is at low cost, on antiskid claw and expansion nut point it is convex convenient for when expansion nut travels forward jack up block mounting hole inner wall effectively prevent installation when expansion tube and expansion nut transfer, limiting plate effectively prevent expansion bolt that expansion nut is ejected expansion tube.
Description
Technical field
The utility model is related to fastener, more particularly to a kind of three-stage expansion anchor.
Background technology
As common fastener, it mainly realizes that fixation, existing expansion tube are mainly led to anchor bolt by the opening of expansion tube
It crosses conehead extrusion expansion tube head and realizes that expansion tube struts, the easy transfer of when installation, anchor bolt head fastening force is big but anchor bolt tail portion
Fastening force is small, vulnerable.
Utility model content
In view of the deficiencies of the prior art, the technical solution of the utility model attempts to solve at least portion in above-mentioned technical problem
Point defect at least partly overcomes the problems of prior art.
Technical solution adopted by the utility model to solve its technical problems is：A kind of three-stage expansion anchor, including spiral shell
Bar, the expansion tube being sleeved on the screw rod, the screw head are equipped with conehead, and the conehead tail diameter is less than the conehead tail
Portion's diameter, the expansion tube head are equipped with the preceding deformation joint extended along the expansion tube generatrix direction, and the preceding deformation joint is at least
Two and make 360 ° of annular arrays around the screw axis and be uniformly distributed, the expansion pipe outer wall of the preceding deformation joint tail portion is equipped with extremely
Few two claw holes, the claw hole are made 360 annular arrays around the screw axis and are uniformly distributed, be equipped with and stretch in the expansion tube
Go out the claw ontology in the claw hole, the claw body bottom portion is equipped with the crush cones being bonded with the conical surface of the conehead side
Face, the screw rod tail end are threaded with tensioner nut, and the tensioner nut front end, which is equipped with, stretches into the anti-of the expansion tube tail portion
Shear sleeve, the tensioner nut front side are bonded with the expansion tube tail end, the anti-shearing set outer wall and the expansion inside pipe wall
Fitting, the anti-shearing set front end are equipped with the rear deformation joint extended along the anti-shearing set generatrix direction, and the screw rod tail is set
There is clamping head.
It realizes that expansion tube head struts realization fastening effect using conehead in above-mentioned design, is matched with conehead using claw ontology
It closes and realizes fastening in the middle part of expansion tube, while effectivelying prevent expansion tube transfer, the rear deformation joint using anti-shearing set head to resist
Shear sleeve realizes the expansion of expansion tube tail portion under conehead extruding, and fastening effect is good, expansion tube transfer when effectivelying prevent installing, no
It is vulnerable.
As being further improved for the design, the expansion tube of the preceding deformation joint tail portion is equipped with annular and stops curved groove, described
Only curved groove is located on the expansion tube on front side of the claw hole, and expansion tube leading edge deformation is effectively prevent to cause claw bore deformation.
As being further improved for the design, it is cased with only bending hoop in the only curved groove, expansion tube head is further prevented to become
Shape causes claw bore deformation.
As being further improved for the design, the expansion tube tail portion is equipped with plate-like limiting plate, is on front side of the limiting plate
The conical surface is close to fixing base surface convenient for expansion tube tail portion, and disperses tensioner nut pressure, prevents from weighing matrix wounded.
As being further improved for the design, it is equipped with tapered squeezing hole at bore openings on front side of the anti-shearing set, it is described
Tapered squeezing hole front end aperture is more than the tapered squeezing hole tail end aperture, and anti-shearing set is strutted convenient for conehead.
As being further improved for the design, the claw ontology front side is from front side of claw ontology root to described
The inclined-plane extended on rear side of claw body tip, convenient for claw ontology be pierced into matrix and.
The utility model has the beneficial effects that：The utility model realizes that expansion tube head struts realization fastening and makees using conehead
With being realized using claw ontology and conehead cooperation and fastened in the middle part of expansion tube, while effectivelying prevent expansion tube transfer, utilization is anti-shearing
The rear deformation joint on set head makes the anti-shearing conehead that is sleeved on squeeze the lower expansion for realizing expansion tube tail portion, and fastening effect is good, effectively
Expansion tube transfer when preventing from installing, it is not vulnerable.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the outer profile structural schematic diagram of the utility model.
Fig. 2 is the diagrammatic cross-section of the utility model.
Fig. 3 is the tensioner nut structural schematic diagram of the utility model.
1. screw rod in figure, 2. expansion tubes, 3. limiting plates, 4. tensioner nuts, 5. coneheads, deformation joint before 6., 7. only bending hoops,
8. claw ontology, 9. only curved grooves, 10. tapered squeezing holes, deformation joint after 11., 12. clamping heads, 13. claw holes, 14. crush cones
Face, 15. anti-shearing sets.
Specific implementation mode
Be described in detail the utility model below in conjunction with attached drawing and specific embodiment, illustrative examples therein with
And explanation is only used for explaining the utility model, but be not intended to limit the scope of the present invention.
Embodiment：A kind of three-stage expansion anchor, including screw rod 1, the expansion tube 2 that is sleeved on the screw rod 1, the screw rod
1 head is equipped with conehead 5, and 5 tail diameter of the conehead is less than 5 tail diameter of the conehead, and 2 head of the expansion tube is equipped with along institute
State 2 generatrix direction of expansion tube extension preceding deformation joint 6, the preceding deformation joint 6 at least two and around 1 axis of the screw rod make 360 °
Annular array is uniformly distributed, and 2 outer wall of expansion tube of 6 tail portion of preceding deformation joint is equipped at least two claw holes 13, the claw
Hole 13 is made 360 annular arrays around 1 axis of the screw rod and is uniformly distributed, and is equipped in the expansion tube 2 and stretches out the claw hole 13
Claw ontology 8,8 bottom of claw ontology are equipped with the extruding conical surface 14 being bonded with the conical surface of 5 side of the conehead, the screw rod
1 threads are connected with tensioner nut 4, and 4 front end of the tensioner nut is equipped with the anti-shearing set for stretching into 2 tail portion of the expansion tube
15,4 front side of the tensioner nut is bonded with 2 tail end of the expansion tube, 15 outer walls of the anti-shearing set and 2 inner wall of the expansion tube
Fitting, 15 front ends of the anti-shearing set are equipped with the rear deformation joint 11 extended along 15 generatrix directions of the anti-shearing set, the screw rod 1
Tail portion is equipped with clamping head 12.
It realizes that 2 head of expansion tube struts realization fastening effect using conehead 5 in above-mentioned design, utilizes claw ontology 8 and cone
2 middle part fastening of expansion tube is realized in first 5 cooperation, while effectivelying prevent 2 transfer of expansion tube, utilizes the rear deformation on 15 heads of anti-shearing set
For seam 11 so that anti-shearing set 15 realizes the expansion of 2 tail portion of expansion tube under the extruding of conehead 5, fastening effect is good, effectively prevent installing
When 2 transfer of expansion tube, it is not vulnerable.
As being further improved for the design, the expansion tube 2 of 6 tail portion of preceding deformation joint is equipped with annular and stops curved groove 9, institute
It states only curved groove 9 to be located on the expansion tube 2 of 13 front side of the claw hole, 2 leading edge deformation of expansion tube is effectively prevent to cause claw hole 13
Deformation.
As being further improved for the design, only bending hoop 7 are cased in the only curved groove 9, further prevent 2 head of expansion tube
Deformation causes claw hole 13 to deform.
As being further improved for the design, 2 tail portion of the expansion tube is equipped with plate-like limiting plate 3,3 front side of the limiting plate
For the conical surface, it is close to fixing base surface convenient for 2 tail portion of expansion tube, and disperse 4 pressure of tensioner nut, prevents from weighing matrix wounded.
As being further improved for the design, tapered squeezing hole 10 is equipped at 15 front side bore openings of the anti-shearing set,
10 front end aperture of the tapered squeezing hole is more than 10 tail end aperture of the tapered squeezing hole, and anti-shearing set 15 is strutted convenient for conehead 5.
As being further improved for the design, 8 front side of the claw ontology is from 8 root of claw ontology front side to institute
State the inclined-plane extended on rear side of 8 end of claw ontology, convenient for claw ontology 8 be pierced into matrix and.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are equally included in the patent within the scope of the utility model.
Claims (6)
1. a kind of three-stage expansion anchor, including screw rod, the expansion tube that is sleeved on the screw rod, which is characterized in that the screw rod
Head is equipped with conehead, and the conehead tail diameter is less than the conehead tail diameter, and the expansion tube head is equipped with along described swollen
Tube expansion generatrix direction extend preceding deformation joint, the preceding deformation joint at least two and around the screw axis make 360 ° of annular arrays
It is uniformly distributed, the expansion pipe outer wall of the preceding deformation joint tail portion is equipped at least two claw holes, and the claw hole is around the screw rod
Axis is made 360 annular arrays and is uniformly distributed, and the claw ontology for stretching out the claw hole, the claw sheet are equipped in the expansion tube
Body bottom is equipped with the extruding conical surface being bonded with the conical surface of the conehead side, and the screw rod tail end is threaded with tensioner nut,
The tensioner nut front end is equipped with the anti-shearing set for stretching into the expansion tube tail portion, the tensioner nut front side and the expansion tube
Tail end is bonded, and the anti-shearing set outer wall is bonded with the expansion inside pipe wall, and the anti-shearing set front end is equipped with along the shearing resistance
The rear deformation joint that set generatrix direction extends is cut, the screw rod tail is equipped with clamping head.
2. a kind of three-stage expansion anchor according to claim 1, characterized in that the expansion tube of the preceding deformation joint tail portion
It is equipped with annular and stops curved groove, the only curved groove is located on the expansion tube on front side of the claw hole.
3. a kind of three-stage expansion anchor according to claim 2, characterized in that be cased with only bending hoop in the only curved groove.
4. a kind of three-stage expansion anchor according to claim 1, characterized in that the expansion tube tail portion is limited equipped with plate-like
Position plate, the limiting plate front side is the conical surface.
5. a kind of three-stage expansion anchor according to claim 1, characterized in that bore openings on front side of the anti-shearing set
Place is equipped with tapered squeezing hole, and tapered squeezing hole front end aperture is more than the tapered squeezing hole tail end aperture.
6. a kind of three-stage expansion anchor according to claim 1, characterized in that for described on front side of the claw ontology
To the inclined-plane of extension on rear side of the claw body tip on front side of claw ontology root.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721718033.5U CN207848131U (en) | 2017-12-12 | 2017-12-12 | A kind of three-stage expansion anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721718033.5U CN207848131U (en) | 2017-12-12 | 2017-12-12 | A kind of three-stage expansion anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207848131U true CN207848131U (en) | 2018-09-11 |
Family
ID=63424104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721718033.5U Expired - Fee Related CN207848131U (en) | 2017-12-12 | 2017-12-12 | A kind of three-stage expansion anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207848131U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360398A (en) * | 2019-07-19 | 2019-10-22 | 朱金强 | A kind of fire coupling |
| CN111706588A (en) * | 2020-06-24 | 2020-09-25 | 王晓亮 | Novel locking wall screw that grabs that moves |
| CN114542563A (en) * | 2022-01-25 | 2022-05-27 | 朱启东 | Integral expansion bolt fastened in wall or the like |
-
2017
- 2017-12-12 CN CN201721718033.5U patent/CN207848131U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360398A (en) * | 2019-07-19 | 2019-10-22 | 朱金强 | A kind of fire coupling |
| CN111706588A (en) * | 2020-06-24 | 2020-09-25 | 王晓亮 | Novel locking wall screw that grabs that moves |
| CN114542563A (en) * | 2022-01-25 | 2022-05-27 | 朱启东 | Integral expansion bolt fastened in wall or the like |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180911 Termination date: 20191212 |