CN105114422A - Detachable expansion bolt - Google Patents
Detachable expansion bolt Download PDFInfo
- Publication number
- CN105114422A CN105114422A CN201510540663.7A CN201510540663A CN105114422A CN 105114422 A CN105114422 A CN 105114422A CN 201510540663 A CN201510540663 A CN 201510540663A CN 105114422 A CN105114422 A CN 105114422A
- Authority
- CN
- China
- Prior art keywords
- screw rod
- nut
- expansion
- screw
- detachable
- 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.)
- Pending
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Abstract
The invention relates to a detachable expansion bolt. The detachable expansion bolt comprises a first screw rod, a second screw rod, a screw cap, a locking nut, a tightening nut and an expansion tube. One end of the first screw rod is connected with one end of the second screw rod through the screw cap. The locking nut is fixedly installed in the middle of the first screw rod. The tightening nut is installed at the end, far away from the second screw rod, of the first screw rod. A gasket is arranged between the locking nut and the tightening nut. The first screw rod is sleeved with the expansion tube which is located between the second screw rod and the locking nut. The end, close to the screw cap, of the expansion tube is provided with a plurality of expansion grooves with axial notches. The outer diameter of the expansion tube is equal to that of the screw cap. According to the detachable expansion bolt, a whole expansion screw can be easily taken out of a wall, the wall can be flat through simple repair, overall attractiveness of the wall is guaranteed, operability is high, the detachable expansion bolt can be reused, materials are saved, and engineering efficiency is improved.
Description
Technical field
The present invention relates to a kind of construction with five metals connect workpiece, particularly relate to a kind of can the EXPANSION ANCHOR BOLTS of formula for convenience detach.
Background technique
EXPANSION ANCHOR BOLTS is the engineering fastening piece generally used in construction, common EXPANSION ANCHOR BOLTS, be made up of expansion sleeve and EXPANSION ANCHOR BOLTS, the afterbody of EXPANSION ANCHOR BOLTS is all screw mandrel, and screw mandrel end face is plane, during use, need to punch in bearing, expansion sleeve and EXPANSION ANCHOR BOLTS are knocked in this hole, be then inserted in nut fastening, the object be fastened as a whole with hole can be reached.The problem that the EXPANSION ANCHOR BOLTS of this structure is maximum is EXPANSION ANCHOR BOLTS once after installing, EXPANSION ANCHOR BOLTS is just stuck in body of wall and cannot dismantles, and can only stay in body of wall by EXPANSION ANCHOR BOLTS, affect the overall appearance of body of wall, some is also kept a joint bolt and is exposed to outside, may bring danger.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of use safety, detachable EXPANSION ANCHOR BOLTS.
The technological scheme that the present invention solves the problems of the technologies described above is as follows: a kind of detachable expansion bolt, comprises the first screw rod, the second screw rod, nut, locking nut, fastening nut and expansion tube; One end of described first screw rod is connected by described nut with one end of described second screw rod; Described locking nut is fixedly mounted on the middle part of described first screw rod, and described fastening nut is arranged on the first screw rod one end away from described second screw rod; Packing ring is provided with between described locking nut and described fastening nut; Described expansion tube is enclosed within the first screw rod, and between described second screw rod and described locking nut, described expansion tube offers the expansion slot of multiple axial cut-outs near one end of described nut; Described expansion tube is equal with the external diameter of described nut.
Preferably, the outer surface of described expansion tube is provided with concave-convex type decorative pattern, and the described direction of expansion tube inner wall thickness along described nut to described fastening nut increases gradually.
Preferably, the joint of described first screw rod and the second screw rod is without screw thread, and the screw diameter without screw thread place is not more than the internal thread diameter of the second screw rod.
Preferably, described nut is taper mouth near one end of described first screw rod, and the axial length of described taper mouth equals the length of described expansion slot.
Preferably, the outer end of described second screw rod is conical head.
Preferably, the diameter of described first screw rod is greater than the diameter of described second screw rod, and described first screw rod and described second screw flight are reverse.
Based on technique scheme, the invention has the beneficial effects as follows: the detachable expansion bolt that the present invention proposes, easily whole setscrew is taken out in wall, just can realize the smooth of body of wall by simply repairing, ensure the overall appearance of body of wall, and make simple, and strong operability, reusable, save material, reduce costs, input cost is low, improves engineering efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows:
1. the first screw rod, 2. the second screw rod, 3. nut, 4. expansion tube, 5. locking nut, 6. fastening nut, 7. expansion slot.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As shown in Figure 1, a kind of detachable expansion bolt, comprises the first screw rod 1, second screw rod 2, nut 3, locking nut 5, fastening nut 6 and expansion tube 4; One end of described first screw rod 1 is connected by described nut 3 with one end of described second screw rod 2; Described locking nut 5 is fixedly mounted on the middle part of described first screw rod 1, and described fastening nut 6 is arranged on the first screw rod 1 one end away from described second screw rod 2; Packing ring is provided with between described locking nut 5 and described fastening nut 6; Described expansion tube 4 is enclosed within the first screw rod 1, and between described second screw rod 2 and described locking nut 5, described expansion tube 4 offers the expansion slot 7 of multiple axial cut-outs near one end of described nut 3; Described expansion tube 4 is equal with the external diameter of described nut 3.
Preferably, the outer surface of described expansion tube 4 is provided with concave-convex type decorative pattern, and the described direction of expansion tube 4 inner wall thickness along described nut 3 to described fastening nut 6 increases gradually.
Preferably, the joint of described first screw rod 1 and the second screw rod 2 is without screw thread, and the screw diameter without screw thread place is not more than the internal thread diameter of the second screw rod 2.
Preferably, described nut 3 is taper mouth near one end of described first screw rod 1, and the axial length of described taper mouth equals the length of described expansion slot 7.
Preferably, the outer end of described second screw rod 2 is conical head.
Preferably, the diameter of described first screw rod 1 is greater than the diameter of described second screw rod 2, and described first screw rod 1 is reverse with the screw thread of described second screw rod 2.
In use, first expansion tube 4 is screwed on the first screw rod 1, again nut 3 is screwed in the second screw rod 2, then setscrew is put into the hole of having bored, because nut 3, expansion tube 4 have friction with hole, the bolt rotary when rotational lock nut 5, and nut 3 and expansion tube 4 only can be moved in opposite directions due to the effect of the first screw rod 1 and the second screw rod 2 reverse thread, nut 3 moves right, expansion tube 4 is then moved to the left, the expansion slot 7 of such expansion tube 4 will be expanded by the extruding of the taper mouth of nut 3, so just makes screw rod be secured firmly.When counterrotating locking nut 5, nut 3 will separate with expansion tube 4, and the expansion slot 7 expanded like this will restore to the original state, and screw rod is easily removed, reclaim.
The detachable expansion bolt that the present invention proposes, easily whole setscrew is taken out in wall, just can realize the smooth of body of wall by simply repairing, having ensured the overall appearance of body of wall, and make simple, strong operability, reusable, save material, reduce costs, input cost is low, improves engineering efficiency.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a detachable expansion bolt, is characterized in that: comprise the first screw rod, the second screw rod, nut, locking nut, fastening nut and expansion tube; One end of described first screw rod is connected by described nut with one end of described second screw rod; Described locking nut is fixedly mounted on the middle part of described first screw rod, and described fastening nut is arranged on the first screw rod one end away from described second screw rod; Packing ring is provided with between described locking nut and described fastening nut; Described expansion tube is enclosed within the first screw rod, and between described nut and described locking nut, described expansion tube offers the expansion slot of multiple axial cut-outs near one end of described nut; Described expansion tube is equal with the external diameter of described nut.
2. a kind of detachable expansion bolt according to claim 1, is characterized in that, the outer surface of described expansion tube is provided with concave-convex type decorative pattern, and the described direction of expansion tube inner wall thickness along described nut to described fastening nut increases gradually.
3. a kind of detachable expansion bolt according to claim 1, is characterized in that, the joint of described first screw rod and the second screw rod is without screw thread, and the screw diameter without screw thread place is not more than the internal thread diameter of the second screw rod.
4. a kind of detachable expansion bolt according to claim 1, is characterized in that, described nut is taper mouth near one end of described first screw rod, and the axial length of described taper mouth equals the length of described expansion slot.
5. a kind of detachable expansion bolt according to claim 1, is characterized in that, the outer end of described second screw rod is conical head.
6., according to described a kind of detachable expansion bolt arbitrary in claim 1 to 5, it is characterized in that, the diameter of described first screw rod is greater than the diameter of described second screw rod, and described first screw rod and described second screw flight are reverse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510540663.7A CN105114422A (en) | 2015-08-28 | 2015-08-28 | Detachable expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510540663.7A CN105114422A (en) | 2015-08-28 | 2015-08-28 | Detachable expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105114422A true CN105114422A (en) | 2015-12-02 |
Family
ID=54662494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510540663.7A Pending CN105114422A (en) | 2015-08-28 | 2015-08-28 | Detachable expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105114422A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026935A (en) * | 2018-09-04 | 2018-12-18 | 张哲夫 | A kind of removable fixation means for indoor decoration |
| CN112394470A (en) * | 2020-11-26 | 2021-02-23 | 江门市迈科光学有限公司 | Zoom digital camera lens |
| CN112828317A (en) * | 2021-03-24 | 2021-05-25 | 钟东明 | Manufacturing process of expansion screw |
| CN115013398A (en) * | 2022-06-30 | 2022-09-06 | 佛山市灏宇家居科技有限公司 | Expansion bolt assembly |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252019A (en) * | 2011-07-04 | 2011-11-23 | 翟国防 | Expansion screw |
| CN202187989U (en) * | 2010-12-10 | 2012-04-11 | 上海康驰建筑技术有限公司 | Anchor bolt |
| WO2015052947A1 (en) * | 2013-10-09 | 2015-04-16 | 株式会社豊和 | Anchor bolt manufacturing method |
| CN104533908A (en) * | 2014-12-19 | 2015-04-22 | 陈辉远 | Recoverable expansion screw |
-
2015
- 2015-08-28 CN CN201510540663.7A patent/CN105114422A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202187989U (en) * | 2010-12-10 | 2012-04-11 | 上海康驰建筑技术有限公司 | Anchor bolt |
| CN102252019A (en) * | 2011-07-04 | 2011-11-23 | 翟国防 | Expansion screw |
| WO2015052947A1 (en) * | 2013-10-09 | 2015-04-16 | 株式会社豊和 | Anchor bolt manufacturing method |
| CN104533908A (en) * | 2014-12-19 | 2015-04-22 | 陈辉远 | Recoverable expansion screw |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026935A (en) * | 2018-09-04 | 2018-12-18 | 张哲夫 | A kind of removable fixation means for indoor decoration |
| CN112394470A (en) * | 2020-11-26 | 2021-02-23 | 江门市迈科光学有限公司 | Zoom digital camera lens |
| CN112828317A (en) * | 2021-03-24 | 2021-05-25 | 钟东明 | Manufacturing process of expansion screw |
| CN112828317B (en) * | 2021-03-24 | 2022-08-23 | 河北展宇机电科技有限公司 | Manufacturing process of expansion screw |
| CN115013398A (en) * | 2022-06-30 | 2022-09-06 | 佛山市灏宇家居科技有限公司 | Expansion bolt assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151202 |