CN204387037U - Opposite-flushing type EXPANSION ANCHOR BOLTS - Google Patents
Opposite-flushing type EXPANSION ANCHOR BOLTS Download PDFInfo
- Publication number
- CN204387037U CN204387037U CN201420730026.7U CN201420730026U CN204387037U CN 204387037 U CN204387037 U CN 204387037U CN 201420730026 U CN201420730026 U CN 201420730026U CN 204387037 U CN204387037 U CN 204387037U
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- CN
- China
- Prior art keywords
- bolt
- sleeve
- anchor bolts
- nuts
- opposite
- 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.)
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Abstract
The purpose of this utility model is the opposite-flushing type EXPANSION ANCHOR BOLTS proposing a kind of good fixing effect.Opposite-flushing type EXPANSION ANCHOR BOLTS of the present utility model comprises expansion sleeve and bolt, described bolt is installed in expansion sleeve, key is that the two ends of described expansion sleeve are equipped with sleeve non-return sheet, one end of described sleeve non-return sheet is connected with barrel one, the other end is free end, and towards the respective side end direction of expansion sleeve; The position that described bolt is exposed to the two ends of expansion sleeve is installed with a round table-like or taper nut respectively, the little head end of described two nuts is relative, the screw pair matching relationship of described two nuts and bolt is as follows: when bolt rotates, and two nuts are contrary relative to the movement direction of bolt.Opposite-flushing type EXPANSION ANCHOR BOLTS of the present utility model can be simultaneously spacing in both direction, and thoroughly avoid EXPANSION ANCHOR BOLTS and rock relative to body of wall, fixed effect strengthens greatly.
Description
Technical field
The utility model belongs to technical field of fastening, is related specifically to a kind of opposite-flushing type EXPANSION ANCHOR BOLTS.
Background technique
EXPANSION ANCHOR BOLTS in general be expansible anchor of metal, its fixation principle is as follows: EXPANSION ANCHOR BOLTS utilize wedge shape gradient to impel expand produce friction bond stress, reach fixed effect.One, bolt is screw thread, and one has tapering.Outer bread one iron sheet cylinder, there are some otch one end of iron sheet cylinder, they are filled in hole that wall is accomplished fluently together, then split nut, nut pulls outward bolt, tapering is drawn in iron sheet cylinder, and the incision of iron sheet cylinder is by spreading, so tightly fixing on the wall, be generally used for fastening on the material such as cement, brick such as protective grating, rain cover, air-conditioning.
There is following shortcoming in above-mentioned EXPANSION ANCHOR BOLTS: EXPANSION ANCHOR BOLTS only has one end by spreading, if when the hole accomplished fluently is darker, be just difficult to keep bolt to stablize, bolt easily moves to direction in hole and causes loosening, although can not drop out, but affects using effect.
Summary of the invention
The purpose of this utility model is the opposite-flushing type EXPANSION ANCHOR BOLTS proposing a kind of good fixing effect.
Opposite-flushing type EXPANSION ANCHOR BOLTS of the present utility model comprises expansion sleeve and bolt, described bolt is installed in expansion sleeve, key is that the two ends of described expansion sleeve are equipped with sleeve non-return sheet, one end of described sleeve non-return sheet is connected with barrel one, the other end is free end, and towards the respective side end direction of expansion sleeve; The position that described bolt is exposed to the two ends of expansion sleeve is installed with a round table-like or taper nut respectively, the little head end of described two nuts is relative, the screw pair matching relationship of described two nuts and bolt is as follows: when bolt rotates, and two nuts are contrary relative to the movement direction of bolt.
When mounted, first (diameter in this hole should equal or slightly larger than the diameter of expansion sleeve to utilize drill bit on wall, get out the hole of predetermined depth and diameter, the degree of depth in this hole should slightly larger than the length of expansion sleeve), then EXPANSION ANCHOR BOLTS is put into this hole, utilize the instrument such as screw driver or spanner to twist bolt, bolt is rotated relative to expansion sleeve.While screws, two nuts on bolt will move in opposite directions along bolt, and are tilted by the free end of the sleeve non-return sheet of respective side respectively, are formed barb-like and snap in wall, expansion sleeve cannot be moved by opposing sides again, achieve fixing EXPANSION ANCHOR BOLTS.Owing to all fixing expansion sleeve in the two directions, therefore no matter the hole depth of pre-subdrilling whether excessively dark, expansion sleeve all can not be caused to move in body of wall, therefore fix more stable.
Specifically, above-mentioned two nuts are combined with following two kinds with the screw pair of bolt: the hand of spiral 1, on described bolt is consistent, and the hand of spiral of described two nuts is contrary; 2, described bolt is provided with two threaded area, and the hand of spiral of described two threaded area is contrary, and described two nuts are positioned at different threaded area, and the hand of spiral of two nuts is identical.
Further, the outer surface of the stub end of described nut is provided with outstanding spline sheet, and described spline sheet is parallel to the axis of bolt.If the hole internal diameter in body of wall is larger, when rotating bolt, likely can drive nut synchronous rotary, sleeve non-return sheet cannot be strutted, after arranging spline sheet, spline sector-meeting is embedded in body of wall, can prevent nut from rotating relative to body of wall, thus two nuts under bolt effect, can only be moved along bolt in opposite directions.
Further, described expansion sleeve is the cylinder structure that sheet material is rolled into, and described sleeve non-return sheet is arranged on expansion sleeve with impact style, to reduce costs.
Further, the end of described bolt is taper, so that bolt is mobile to body of wall inside.
Opposite-flushing type EXPANSION ANCHOR BOLTS of the present utility model can be simultaneously spacing in both direction, and thoroughly avoid EXPANSION ANCHOR BOLTS and rock relative to body of wall, fixed effect strengthens greatly.
Accompanying drawing explanation
Fig. 1 is the structure sectional view of the opposite-flushing type EXPANSION ANCHOR BOLTS of embodiment 1.
Fig. 2 is the structure sectional view of the opposite-flushing type EXPANSION ANCHOR BOLTS of embodiment 2.
Accompanying drawing indicates: 1, expansion sleeve; 11, sleeve non-return sheet; 2, bolt; 3, nut; 31, spline sheet.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the effect and working principle etc. of embodiment of the present utility model as the mutual alignment between the shape of involved each component, structure, each several part and annexation, each several part are described in further detail.
Embodiment 1:
As shown in Figure 1, the opposite-flushing type EXPANSION ANCHOR BOLTS of the present embodiment comprises expansion sleeve 1 and bolt 2, described bolt 2 is installed in expansion sleeve 1, key is that the two ends of described expansion sleeve 1 are equipped with sleeve non-return sheet 11, one end of described sleeve non-return sheet 11 is connected with barrel one, the other end is free end, and towards the respective side end direction of expansion sleeve 1; The position that described bolt 2 is exposed to the two ends of expansion sleeve 1 is installed with a round table-like nut 3 respectively, the little head end of described two nuts 3 is relative, hand of spiral on bolt 2 is consistent, the hand of spiral of described two nuts 3 is contrary, to make when bolt 2 rotates, two nuts 3 are contrary relative to the movement direction of bolt 2.
The cylinder structure that above-mentioned expansion sleeve 1 is rolled into for sheet material, described sleeve non-return sheet 11 is arranged on expansion sleeve 1, to reduce costs with impact style.
The end of bolt 2 is taper, so that bolt 2 is mobile to body of wall inside.
When mounted, first (diameter in this hole should equal or slightly larger than the diameter of expansion sleeve 1 to utilize drill bit on wall, get out the hole of predetermined depth and diameter, the degree of depth in this hole should slightly larger than the length of expansion sleeve 1), then EXPANSION ANCHOR BOLTS 2 is put into this hole, utilize the instruments such as bolt 2 cutter or spanner to twist bolt 2, bolt 2 is rotated relative to expansion sleeve 1.While bolt 2 rotates, two nuts 3 on bolt 2 will move in opposite directions along bolt 2, and are tilted by the free end of the sleeve non-return sheet 11 of respective side respectively, are formed barb-like and snap in wall, expansion sleeve 1 cannot be moved by opposing sides again, achieve fixing EXPANSION ANCHOR BOLTS.Owing to all fixing expansion sleeve 1 in the two directions, therefore no matter the hole depth of pre-subdrilling whether excessively dark, expansion sleeve 1 all can not be caused to move in body of wall, therefore fix more stable.
Embodiment 2:
As shown in Figure 2, as different from Example 1, in the present embodiment, the outer surface of the stub end of nut 3 is provided with outstanding spline sheet 31, and described spline sheet 31 is parallel to the axis of bolt 2.
If the hole internal diameter in body of wall is larger, during bolt 2 in rotation embodiment 1, likely can drive nut 3 synchronous rotary, sleeve non-return sheet 11 cannot be strutted, after the present embodiment arranges spline sheet 31, spline sheet 31 can be embedded in body of wall, can prevent nut 3 from rotating relative to body of wall, thus two nuts 3 under bolt 2 acts on, can only be moved along bolt 2 in opposite directions.
Claims (5)
1. an opposite-flushing type EXPANSION ANCHOR BOLTS, comprise expansion sleeve and bolt, described bolt is installed in expansion sleeve, it is characterized in that the two ends of described expansion sleeve are equipped with sleeve non-return sheet, one end of described sleeve non-return sheet is connected with barrel one, the other end is free end, and towards the respective side end direction of expansion sleeve; The position that described bolt is exposed to the two ends of expansion sleeve is installed with a round table-like or taper nut respectively, the little head end of described two nuts is relative, the screw pair matching relationship of described two nuts and bolt is as follows: when bolt rotates, and two nuts are contrary relative to the movement direction of bolt.
2. opposite-flushing type EXPANSION ANCHOR BOLTS according to claim 1, it is characterized in that the hand of spiral on described bolt is consistent, the hand of spiral of described two nuts is contrary; Or described bolt is provided with two threaded area, the hand of spiral of described two threaded area is contrary, and described two nuts are positioned at different threaded area, and the hand of spiral of two nuts is identical.
3. opposite-flushing type EXPANSION ANCHOR BOLTS according to claim 1 and 2, it is characterized in that the outer surface of the stub end of described nut is provided with outstanding spline sheet, described spline sheet is parallel to the axis of bolt.
4. opposite-flushing type EXPANSION ANCHOR BOLTS according to claim 1 and 2, it is characterized in that described expansion sleeve is the cylinder structure that sheet material is rolled into, described sleeve non-return sheet is arranged on expansion sleeve with impact style.
5. opposite-flushing type EXPANSION ANCHOR BOLTS according to claim 1 and 2, is characterized in that the end of described bolt is taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420730026.7U CN204387037U (en) | 2014-11-29 | 2014-11-29 | Opposite-flushing type EXPANSION ANCHOR BOLTS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420730026.7U CN204387037U (en) | 2014-11-29 | 2014-11-29 | Opposite-flushing type EXPANSION ANCHOR BOLTS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204387037U true CN204387037U (en) | 2015-06-10 |
Family
ID=53359760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420730026.7U Expired - Fee Related CN204387037U (en) | 2014-11-29 | 2014-11-29 | Opposite-flushing type EXPANSION ANCHOR BOLTS |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204387037U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454864A (en) * | 2014-11-29 | 2015-03-25 | 黄传勇 | Hedging type expansion bolt |
| CN106677605A (en) * | 2016-11-15 | 2017-05-17 | 无锡新人居科贸有限公司 | Anti-pulling tent peg for fixing tent |
| CN113606232A (en) * | 2021-06-29 | 2021-11-05 | 中建七局建筑装饰工程有限公司 | Double-end expansion connecting part |
-
2014
- 2014-11-29 CN CN201420730026.7U patent/CN204387037U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454864A (en) * | 2014-11-29 | 2015-03-25 | 黄传勇 | Hedging type expansion bolt |
| CN106677605A (en) * | 2016-11-15 | 2017-05-17 | 无锡新人居科贸有限公司 | Anti-pulling tent peg for fixing tent |
| CN113606232A (en) * | 2021-06-29 | 2021-11-05 | 中建七局建筑装饰工程有限公司 | Double-end expansion connecting part |
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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: 20150610 Termination date: 20181129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |