CN206592387U - A kind of expansion bolt - Google Patents
A kind of expansion bolt Download PDFInfo
- Publication number
- CN206592387U CN206592387U CN201621429996.9U CN201621429996U CN206592387U CN 206592387 U CN206592387 U CN 206592387U CN 201621429996 U CN201621429996 U CN 201621429996U CN 206592387 U CN206592387 U CN 206592387U
- Authority
- CN
- China
- Prior art keywords
- bolt
- expansion sleeve
- expansion
- wall
- concave point
- 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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- Dowels (AREA)
Abstract
The purpose of this utility model is to propose a kind of expansion bolt of good fixing effect.Expansion bolt of the present utility model includes expansion sleeve and bolt, and the bolt is installed in expansion sleeve, and one end that bolt is located in expansion sleeve is taper or round table-like；Key is the barrel many places ecto-entad bending of the expansion sleeve and forms inwardly projecting concave point.When mounted, the hole of desired depth and diameter is got out on wall first with drill bit, then expansion sleeve is put into the hole, bolt is inserted into expansion sleeve, bolt is gradually extend into expansion sleeve using instruments such as hammers.In the process, bolt and dimple contacts, make concave point and its expansion sleeve wall on periphery expand outwardly and be caught in wall, expansion sleeve is not moved opposing sides again, realize the fixation to expansion bolt.Because the side barrel of concave point is snapped onto in wall, equivalent to having done fixation to expansion sleeve in a plurality of directions, therefore fixed more stablize.
Description
Technical field
The utility model belongs to technical field of fastening, is related specifically to a kind of expansion bolt.
Background technology
Expansion bolt generally be expansible anchor of metal, its fixation principle is as follows：Expansion bolt utilizes wedge-shaped gradient
To promote expansion to produce friction bond stress, fixed effect is reached.One, bolt is screw thread, and one tapered.The outer iron sheet of bread one
There are some otch cylinder, one end of iron sheet cylinder, they is filled in together in the hole accomplished fluently on wall, then split nut, nut handle
Bolt is pulled outward, and taper is pulled in into iron sheet cylinder, and the incision of iron sheet cylinder is then tightly secured on wall, typically by spreading
For the fastening on the materials such as cement, brick such as guard rail, rain cover, air-conditioning.
There are following shortcomings in above-mentioned expansion bolt：Expansion bolt only has one end by spreading, if the hole accomplished fluently is deeper, just
It is difficult to keep bolt stable, bolt easily into hole, move and cause to loosen by direction, although can not drop out, but influence
Using effect.
The content of the invention
The purpose of this utility model is to propose a kind of expansion bolt of good fixing effect.
Expansion bolt of the present utility model includes expansion sleeve and bolt, and the bolt is installed in expansion sleeve, bolt
One end in expansion sleeve is taper or round table-like；Key is the barrel many places ecto-entad bending of the expansion sleeve
And form inwardly projecting concave point.
When mounted, the hole of desired depth and diameter is got out on wall first with drill bit（The diameter in the hole should be equal to
Or slightly larger than the diameter of expansion sleeve, the depth in the hole should be slightly bigger than the length of expansion sleeve）, expansion sleeve is then put into this
In hole, then bolt is inserted into expansion sleeve, bolt is gradually extend into expansion sleeve using instruments such as hammers.In spiral shell
Bolt gradually extend into expansion sleeve in during, bolt and dimple contacts, make concave point and its expansion sleeve wall on periphery to
Outer expansion is caught in wall, expansion sleeve is not moved opposing sides again, realizes the fixation to expansion bolt.Due to concave point
Side barrel is snapped onto in wall, equivalent to having done fixation to expansion sleeve in a plurality of directions, no matter pre- subdrilling
Hole depth it is whether too deep, will not result in expansion sleeve and moved in wall, therefore fixed more stablize.
Uniform to the adhesive force of wall to ensure, the concave point is distributed in array-like on the barrel of expansion sleeve.
Further, the inwardly projecting height of the concave point gradually increases from the outboard end of expansion sleeve to medial extremity, this
Sample bolt gradually deeply expansion sleeve during, bolt can with all dimple contacts and gradually increase to expansion sleeve
Expansive force, so as to increase the adhesive force to wall.
Further, for ease of installing, the outboard end of the expansion sleeve is provided with flanging.When mounted, it is possible to use
The mode of hammering is driven in sleeve is expanded in the perforate of wall, and flanging can prevent expansion colleting deformation during tapping and hinder
Bolt enters in expansion sleeve.
Expansion sleeve of the present utility model can be extruded to wind again after concave point using steel plate stamping and formed, and be simple to manufacture, cost
It is low, and the mounting means of expansion bolt is simple, fixing-stable, with good practicality.
Brief description of the drawings
Fig. 1 is the sectional view of the expansion sleeve of embodiment 1.
Accompanying drawing is indicated：1st, sleeve is expanded；2nd, bolt；3rd, flanging；4th, concave point.
Embodiment
Below against accompanying drawing, by the description to embodiment, to embodiment of the present utility model as involved by
The shape of each component, construction, the mutual alignment between each several part and annexation, the effect of each several part and operation principle etc. make
It is further to describe in detail.
Embodiment 1：
As illustrated, the expansion bolt of the present embodiment includes expansion sleeve 1 and bolt 2, the bolt 2 is installed on expansion sleeve
In cylinder 1, one end that bolt 2 is located in expansion sleeve 1 is taper, expands the outboard end of sleeve 1（Side outside towards wall）If
There is circular fold 3.
Expansion sleeve 1 winds forms again after extruding concave point 4 using steel plate stamping so that its barrel many places ecto-entad bending and
Inwardly projecting concave point is formed, concave point 4 is distributed in array-like on the barrel of expansion sleeve 1.
When mounted, the hole of desired depth and diameter is got out on wall first with drill bit（The diameter in the hole should be equal to
Or slightly larger than the diameter of expansion sleeve 1, the depth in the hole should be slightly bigger than the length of expansion sleeve 1）, then expansion sleeve 1 is put
Enter in the hole, then bolt 2 is inserted into expansion sleeve 1, bolt 2 is gradually extend into expansion sleeve using instruments such as hammers
In 1.During bolt 2 is gradually extend into expansion sleeve 1, bolt 2 is contacted with concave point 4, makes the swollen of concave point 4 and its periphery
Expansion set 1 barrel of cylinder, which is expanded outwardly, is caught in wall, expansion sleeve 1 is not moved opposing sides again, realizes to expansion bolt 2
It is fixed.Because the side barrel of concave point 4 is snapped onto in wall, equivalent in a plurality of directions to expansion sleeve 1 do
It is fixed, no matter pre- subdrilling hole depth it is whether too deep, will not result in expansion sleeve 1 and moved in wall, thus it is fixed more
Plus stably.
In addition, the dregs that wall is produced can be filled into the pit on the outside of the expansion barrel of sleeve 1（I.e. concave point 4 side cylinder
At wall）, during expansion sleeve 1 expands, the part dregs can increase the pressure between wall and expansion sleeve 1, improve
Stablizing effect.
Embodiment 2：
As different from Example 1, in the present embodiment, the inwardly projecting height of concave point 4 by expansion sleeve 1 outboard end
Gradually increase to medial extremity, so during bolt 2 gradually deeply expands sleeve 1, bolt 2 can be with all concave points 4
Contact and gradually increase the expansive force to expanding sleeve 1, so as to increase the adhesive force to wall.
Claims (4)
1. a kind of expansion bolt, including expansion sleeve and bolt, the bolt are installed in expansion sleeve, bolt is located at expansion sleeve
One end in cylinder is taper or round table-like；It is characterized in that the barrel many places ecto-entads bending of the expansion sleeve and formed to
The concave point of interior protrusion.
2. expansion bolt according to claim 1, it is characterised in that the concave point is distributed in expansion sleeve in array-like
On barrel.
3. expansion bolt according to claim 1, it is characterised in that the inwardly projecting height of the concave point is by expansion sleeve
Outboard end gradually increase to medial extremity.
4. the expansion bolt according to claim 1 or 2 or 3, it is characterised in that the outboard end of the expansion sleeve is provided with
Flanging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621429996.9U CN206592387U (en) | 2016-12-25 | 2016-12-25 | A kind of expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621429996.9U CN206592387U (en) | 2016-12-25 | 2016-12-25 | A kind of expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206592387U true CN206592387U (en) | 2017-10-27 |
Family
ID=60131432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621429996.9U Expired - Fee Related CN206592387U (en) | 2016-12-25 | 2016-12-25 | A kind of expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206592387U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763048A (en) * | 2016-12-25 | 2017-05-31 | 黄传勇 | A kind of expansion bolt |
-
2016
- 2016-12-25 CN CN201621429996.9U patent/CN206592387U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763048A (en) * | 2016-12-25 | 2017-05-31 | 黄传勇 | A kind of expansion bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180614 Address after: 312000 317 Xingci six road, Hangzhou Bay New District, Ningbo, Zhejiang Patentee after: Ningbo Changer Electron Co.,Ltd. Address before: 525300 Jinfu building, 85 Renmin Road, Xinyi, Maoming, Guangdong, A405 Patentee before: Huang Chuanyong |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171027 Termination date: 20211225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |