CN207848137U - A kind of self-expansion type anchor bolt - Google Patents
A kind of self-expansion type anchor bolt Download PDFInfo
- Publication number
- CN207848137U CN207848137U CN201721733359.5U CN201721733359U CN207848137U CN 207848137 U CN207848137 U CN 207848137U CN 201721733359 U CN201721733359 U CN 201721733359U CN 207848137 U CN207848137 U CN 207848137U
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- CN
- China
- Prior art keywords
- expansion sleeve
- expansion
- slot
- bolt
- hole
- 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 self-expansion type anchor bolts, including expansion sleeve, expansion sleeve tail portion is equipped with rear position margining plate, and expansion sleeve is equipped with expansion hole, and expansion hole includes threaded hole, unthreaded hole, bolt is equipped in expansion sleeve, for unthreaded hole internal diameter more than the major diameter of thread of bolt, bolt tail, which is fixed with, screws block, and the expansion sleeve outer wall of unthreaded hole and threaded hole junction is equipped with deformation slot before annular, front inner wall is equipped in annular and deforms slot in unthreaded hole, and expansion sleeve outer wall tail portion deforms slot after being equipped with.The utility model utilizes bolt compresses expansion sleeve, expansion sleeve is folded when preceding deformation slot, middle deformation slot and rear deformation slot are in expansion sleeve compression force compresses convenient for expansion sleeve, convenient for forming clamp structure by fastener both sides and limiting plate, bonding strength is high, as expansion sleeve increases expansion sleeve with by fastener fitting area in the case of gradual deformation, better tightness, being capable of other parts of dismountable mechanical again while realizing that multiple part by one-step fasten using bolt and expansion sleeve.
Description
Technical field
The utility model is related to fastener, more particularly to a kind of self-expansion type anchor bolt.
Background technology
Anchor bolt is as common fastener when in use frequently as two part connecting pieces, existing anchor bolt generally use bolt
Expansion sleeve is propped up, is not suitable for the part connection of two thin-walleds, the rivet of generally use carries out when being connected for two thin-walled parts
Connection, but anchor bolts intensity is low, but poor sealing, it is 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 self-expansion type anchor bolt, including expansion
Set, the expansion sleeve tail portion are equipped with plate-like rear position margining plate, and the expansion sleeve is equipped with the expansion hole of opening backward, the expansion hole packet
It includes and threaded hole in the expansion sleeve front end, the unthreaded hole that is connect with the threaded hole tail end is set, spiral shell is equipped in the expansion sleeve
Bolt, the bolt head are threadedly coupled with the threaded hole, and the unthreaded hole internal diameter is more than the major diameter of thread of bolt, the bolt tail
Portion, which is fixed with, screws block, and described screw is bonded on front side of block with limiting plate rear side, the unthreaded hole and the threaded hole junction
Expansion sleeve outer wall be equipped with annular before deform slot, front inner wall, which is equipped in annular, in the unthreaded hole deforms slot, outside the expansion sleeve
Wall tail portion deforms slot after being equipped with.
Bolt compresses expansion sleeve, expansion sleeve is utilized to exist in preceding deformation slot, middle deformation slot and rear deformation slot in above-mentioned design
It is folded convenient for expansion sleeve when expansion sleeve compression force compresses, convenient for forming clamp structure, connection by fastener both sides and limiting plate
Intensity is high, as expansion sleeve increases expansion sleeve with by fastener fitting area in the case of gradual deformation, better tightness, and profit
It being capable of other parts of dismountable mechanical again while realizing multiple part by one-step fastenings with bolt and expansion sleeve.
As being further improved for the design, slot at least two is deformed after described and is axially distributed along the expansion sleeve, institute
Two sides is inclined-plane before and after deformation slot after stating, and surface slope on rear side of slot is deformed after described and is less than the rear deformation slot front side inclined-plane slope
Degree is convenient for the directional deformation of expansion sleeve.It is connected by fastener convenient for the applicable different-thickness of gradual deformation of expansion sleeve.
As being further improved for the design, the thread-groove bottom of the threaded hole is equipped with to be extended along the thread groove bottom
Helicla flute, the bolt tail diameter be more than the bolt head major diameter of thread anti-shearing column, the anti-shearing column with it is described
The transition conical surface is equipped between the tail end of bolt head screw thread.Transition conical surface extrusion expansion pipe screw thread portion, it is tight to be applicable in thicker part
Gu.
It is anti-skidding equipped with being radially extended along the limiting plate on front side of the limiting plate as being further improved for the design
Rib, expansion sleeve transfer when effectivelying prevent installing.
As being further improved for the design, the expansion sleeve tail portion covers rubber sleeve, and the rubber sleeve set is in the rear
It deforms on slot, further lift-off seal.
As being further improved for the design, the expansion sleeve front end is spherical surface, and aesthetics is good, edge-smoothing, prevents from drawing
Hinder contactant.
The utility model has the beneficial effects that：The utility model utilize bolt compresses expansion sleeve, expansion sleeve preceding deformation slot,
Middle deformation slot and rear deformation slot are folded in expansion sleeve compression force compresses convenient for expansion sleeve, convenient for by fastener both sides and limit
Position plate forms clamp structure, and bonding strength is high, as expansion sleeve is bonded expansion sleeve with by fastener in the case of gradual deformation
Area increases, better tightness, can be removable again while realizing that multiple part by one-step fasten using bolt and expansion sleeve
Unload the other parts of machinery.
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 that the utility model does not cover rubber sleeve.
Fig. 2 is the diagrammatic cross-section of the utility model.
1. expansion sleeve in figure, 2. helicla flutes deform slot before 3., slot are deformed in 4., deform slot after 5., 6. rubber sleeves, and 7.
Limiting plate, 8. screw block, 9. anti-sliding ribs, 10. anti-shearing columns, the 11. transition conical surfaces, 12. threaded holes, 13. unthreaded holes, 14. bolts.
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 self-expansion type anchor bolt, including expansion sleeve 1,1 tail portion of the expansion sleeve are equipped with plate-like rear position margining plate 7,
The expansion sleeve 1 is equipped with the expansion hole of opening backward, and the expansion hole includes the threaded hole being arranged in 1 front end of the expansion sleeve
12, the unthreaded hole 13 being connect with 12 tail end of the threaded hole, the expansion sleeve 1 is interior to be equipped with bolt 14,14 head of the bolt and institute
The threaded connection of threaded hole 12 is stated, 13 internal diameter of the unthreaded hole is more than the major diameter of thread of bolt 14, and 14 tail portion of the bolt is fixed with rotation
Block 8 is twisted, 8 front side of block that screws is bonded with 7 rear side of the limiting plate, and the unthreaded hole 13 is swollen with 12 junction of the threaded hole
1 outer wall of expansion set is equipped with annular preceding deformation slot 3, and front inner wall is equipped with deformation slot 4, the expansion sleeve 1 in annular in the unthreaded hole 13
Outer wall tail portion deforms slot 5 after being equipped with.
1 is covered using 14 compression-expansion of bolt in above-mentioned design, expansion sleeve 1 is in preceding deformation slot 3, middle deformation slot 4 and rear change
Shape slot 5 is folded in 1 compression force compresses of expansion sleeve convenient for expansion sleeve 1, convenient for being clamped by fastener both sides and the formation of limiting plate 7
Structure, bonding strength is high, close as expansion sleeve 1 increases expansion sleeve 1 with by fastener fitting area in the case of gradual deformation
Envelope property is more preferable, while realizing that multiple part by one-step fasten using bolt 14 and expansion sleeve 1 can again dismountable mechanical its
Its part.
As being further improved for the design, slot 5 at least two is deformed after described and is axially distributed along the expansion sleeve 1,
Two sides is inclined-plane before and after the rear deformation slot 5, and 5 rear side surface slope of slot is deformed after described and is less than rear 5 front side of deformation slot
Surface slope is convenient for the directional deformation of expansion sleeve 1.It is connected by fastener convenient for the applicable different-thickness of gradual deformation of expansion sleeve 1.
As being further improved for the design, the thread-groove bottom of the threaded hole 12 is equipped with to be extended along the thread groove bottom
Helicla flute 2,14 tail diameter of the bolt be more than 14 head threads outer diameter of the bolt anti-shearing column 10, it is described anti-shearing
The transition conical surface 11 is equipped between the tail end of 14 head threads of column 10 and the bolt.11 extrusion expansion pipe screw thread portion of the transition conical surface,
It is applicable in thicker fastening parts.
As being further improved for the design, 7 front side of the limiting plate is anti-skidding equipped with being radially extended along the limiting plate 7
Rib 9,1 transfer of expansion sleeve when effectivelying prevent installing.
As being further improved for the design, 1 tail portion of the expansion sleeve covers rubber sleeve 6, and the rubber sleeve 6 is sleeved on described
It deforms on slot 5 afterwards, further lift-off seal.
As being further improved for the design, 1 front end of the expansion sleeve is spherical surface, and aesthetics is good, edge-smoothing, prevents from drawing
Hinder contactant.
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 self-expansion type anchor bolt, including expansion sleeve, which is characterized in that the expansion sleeve tail portion is equipped with plate-like rear position margining plate,
The expansion sleeve is equipped with opening expansion hole backward, the expansion hole include be arranged the expansion sleeve front end threaded hole, with
The unthreaded hole of the threaded hole tail end connection, the expansion sleeve is interior to be equipped with bolt, and the bolt head connects with the threaded hole screw thread
It connects, the unthreaded hole internal diameter is more than the major diameter of thread of bolt, and the bolt tail, which is fixed with, screws block, described to screw block front side and institute
It states and is bonded on rear side of limiting plate, the expansion sleeve outer wall of the unthreaded hole and the threaded hole junction is equipped with deformation slot before annular, described
Front inner wall is equipped in annular and deforms slot in unthreaded hole, and expansion sleeve outer wall tail portion deforms slot after being equipped with.
2. a kind of self-expansion type anchor bolt according to claim 1, characterized in that deform slot at least two after described and along institute
It states expansion sleeve to be axially distributed, two sides is inclined-plane before and after deforming slot after described, and surface slope is less than institute on rear side of the rear deformation slot
Surface slope on front side of slot is deformed after stating.
3. a kind of self-expansion type anchor bolt according to claim 1, characterized in that the thread-groove bottom of the threaded hole is equipped with
The helicla flute extended along the thread groove bottom, the bolt tail diameter are more than the anti-shearing of the bolt head major diameter of thread
Column is equipped with the transition conical surface between the anti-shearing column and the tail end of the bolt head screw thread.
4. a kind of self-expansion type anchor bolt according to claim 1, characterized in that be equipped with along the limit on front side of the limiting plate
The anti-sliding rib that position plate radially extends.
5. a kind of self-expansion type anchor bolt according to claim 1, characterized in that the expansion sleeve tail portion covers rubber sleeve,
The rubber sleeve set deforms on slot in the rear.
6. a kind of self-expansion type anchor bolt according to claim 1, characterized in that the expansion sleeve front end is spherical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721733359.5U CN207848137U (en) | 2017-12-13 | 2017-12-13 | A kind of self-expansion type anchor bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721733359.5U CN207848137U (en) | 2017-12-13 | 2017-12-13 | A kind of self-expansion type anchor bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207848137U true CN207848137U (en) | 2018-09-11 |
Family
ID=63420435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721733359.5U Expired - Fee Related CN207848137U (en) | 2017-12-13 | 2017-12-13 | A kind of self-expansion type anchor bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207848137U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513372A (en) * | 2019-09-25 | 2019-11-29 | 淮北创之社信息科技有限公司 | One kind, which is fixedly connected, uses expansion sleeve |
-
2017
- 2017-12-13 CN CN201721733359.5U patent/CN207848137U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513372A (en) * | 2019-09-25 | 2019-11-29 | 淮北创之社信息科技有限公司 | One kind, which is fixedly connected, uses expansion sleeve |
| CN110513372B (en) * | 2019-09-25 | 2023-08-04 | 淮北创之社信息科技有限公司 | Expansion sleeve for fixed connection |
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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: 20191213 |