CN1176304C - Expasion metal bolt set capable of being detached from wall and its machining and usage - Google Patents
Expasion metal bolt set capable of being detached from wall and its machining and usage Download PDFInfo
- Publication number
- CN1176304C CN1176304C CNB021476349A CN02147634A CN1176304C CN 1176304 C CN1176304 C CN 1176304C CN B021476349 A CNB021476349 A CN B021476349A CN 02147634 A CN02147634 A CN 02147634A CN 1176304 C CN1176304 C CN 1176304C
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- CN
- China
- Prior art keywords
- expansion cylinder
- expansion
- wall
- ring
- iron chains
- Prior art date
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- Expired - Fee Related
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- Joining Of Building Structures In Genera (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
The present invention relates to a metal expansion screw set capable of being detached from a wall and a making and using method of the expansion metal screw set. The present invention is mainly realized by a ring-shaped flanging formed at the end of an expansion cylinder by a punching technology and a drawing ring tightly matched with the expansion cylinder. The aim of the present invention is to draw the metal expansion screw from the wall by the fork of a claw hammer when the metal expansion screw needs to be drawn out, just like the way of drawing an iron nail from wood.
Description
Technical field:
The present invention relates to wall with the structure technology of expansion of metal screw and adopt iron chains to branch off end to end and pull out the using method of unloading.
Background technique:
At present, the wall of selling on market expansion of metal screw, it is nonvolatil that its usage mode all belongs to once, that is: they in a single day be used to fixedly something (example: after support) expanding on the wall, though fixation can disassemble,, expanded within the walls expansion of metal screw, just can't be in company with being removed, they are for good and all left on the wall like this, cause wall to be difficult to repair and seriously are marred by a scar, etc.If by force it is rooted out, engineering work load is very big, tangible troublesome.
If: this class has expanded within the walls expansion of metal screw, also can be as with the branch fork of wave afterbody, easily the iron nail in the wood being extracted, that will bring great convenience to people.
The tip portion that CN 2210963Y has disclosed a kind of expansion cylinder is provided with the expansion of metal screw group of a ring-type flange, generally, expansion cylinder is taken is softer metal material (be easy to push up expand and be close to coarse porthole), yielding when the flange that is curved by this material is stressed, be difficult to utilize it that expansion cylinder is pulled out from wall; If, adopt hard material to be processed into expansion cylinder and flange thereof,, adopt the common tool iron chains to pitch end to end and be difficult to it is extracted because expansion cylinder is not yielding,--when----adopted iron chains to pitch end to end nail extracted from wood usually, nail just was easy to be pulled out after by the stress and deformation bending.Unless------implements the straight working method of prizing of multiple spot " by force " along the circumference of expansion cylinder flange, expansion cylinder nondestructively could be pulled out.
CN 2079231U has disclosed a kind of reusable expansion of metal screw group, and pulling out of it encircles and the expansion cylinder whole cast, and it is inevitable hard to draw materials, and its dismounting mode also must adopt mode of above-mentioned " by force " straight sled expansion cylinder could be prized.
Summary of the invention:
The present invention's purpose is just in order to solve: adopt the simplest common tool iron chains to pitch end to end and can will extract involved structure (containing preparation process) and method problem like a cork from wall by the expansion cylinder that the soft metal material is made.
In order to realize the present invention, intend adopting following technological scheme:
One. structure (containing preparation process) requires:
It comprises that there is the expansion cylinder of a ring-type flange on nut, spring washer, bolt and its top, and be positioned at the expansion cylinder top pull out ring (thickness is preferably in more than 2 millimeters), and, the drive fit mode of orientating as (key of the present invention) of pulling out ring and the swollen tube that expands.
Two. it is as follows to pull out the method step that unloads expansion cylinder wherein:
A. unload nut; B. beat bolt with the iron chains head, make bolt from expansion cylinder loosening and backward the outside deviate from; C. iron chains are embedded the lower end of pulling out ring on the expansion cylinder in " nail pulling " branch fork of portion end to end, move the handle of iron chains head, make expansion cylinder loosening and and then it is pulled out from wall unload out.
The present invention is compared with the prior art:
Because structure of the present invention curves a right angle " ring-type flange " in the end of softer relatively expansion cylinder, the stressed excessive parts that are set to increase its mechanics reliability " pull out ring ", and allow the two constitute solid " drawing structure " by " drive fit " mode, this just for adopting the most frequently used iron chains to pitch as extracting tool end to end and realizing using method of the present invention easily, has created advantageous conditions.
Description of drawings:
Fig. 1 has illustrated structure of the present invention to form; Fig. 2 has illustrated method for dismounting of the present invention (situation when enforcement is pulled out).
1: nut; 2: spring washer; 3 plain washers; 4: pull out ring; 5: expansion cylinder; 6: bolt; 7: the iron chains head; 8: wooden handle; P: ring-type flange; Q: wall; Y: iron chains are " nail pulling " branch fork of portion end to end.
Embodiment
Adopting iron chains heads (7) portion prongs (Y) is that instrument is when dismantling expansion cylinder (5), the effect of expansion cylinder (5) right angle ring-type flange (P) mainly is to prop up and the friction tight ring (4) that pulls out of expansion cylinder (5), and as ring (4) has limited right angle ring-type flange (P) to a great extent by drive fit the distortion of pulling out of stressed excessive parts.When pulling out the stressed drawing of ring (4), make ring-type flange (P) have enough dynamics to hold it, expansion cylinder (5) disassembles from wall (Q) the most at last.During dismounting, the distortion of elongated thin expansion cylinder (5) is unavoidable, yet its indeformable using method of the present invention can't realize on the contrary.
Claims (2)
1. the expansion of metal screw group that can dismantle from wall, it comprises: nut (1), spring washer (2), bolt (6) and its tip portion have the expansion cylinder (5) of a ring-type flange (P),
It is characterized in that, also comprise:
What be positioned at expansion cylinder (5) tip portion pulls out ring (4), and, the drive fit mode of orientating as of pulling out ring (4) and the swollen tube (5) that expands.
2. the using method of the expansion of metal screw group that can dismantle from wall as claimed in claim 1 is characterized in that the method step that pulls out the expansion cylinder (5) that unloads wherein is as follows:
A. unload nut (1);
B. beat bolt (6) with the iron chains head, make bolt (6) from expansion cylinder (5) loosening and backward the outside deviate from;
C. iron chains are embedded the lower end of pulling out ring (4) on the expansion cylinder (5) in " nail pulling " branch fork (Y) of portion end to end, move the handle (8) of iron chains head (7), make expansion cylinder (5) also loosening and then it is pulled out from wall (Q) unload out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021476349A CN1176304C (en) | 2002-10-12 | 2002-10-12 | Expasion metal bolt set capable of being detached from wall and its machining and usage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021476349A CN1176304C (en) | 2002-10-12 | 2002-10-12 | Expasion metal bolt set capable of being detached from wall and its machining and usage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1417490A CN1417490A (en) | 2003-05-14 |
| CN1176304C true CN1176304C (en) | 2004-11-17 |
Family
ID=4751221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021476349A Expired - Fee Related CN1176304C (en) | 2002-10-12 | 2002-10-12 | Expasion metal bolt set capable of being detached from wall and its machining and usage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1176304C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564960A (en) * | 2015-01-30 | 2015-04-29 | 王利烨 | Easy-to-disassemble expansion bolt |
| CN107355460A (en) * | 2017-09-15 | 2017-11-17 | 中铁十七局集团有限公司铺架分公司 | It is a kind of readily removable to remove and repeatable utilize expansion bolt |
-
2002
- 2002-10-12 CN CNB021476349A patent/CN1176304C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1417490A (en) | 2003-05-14 |
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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 | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |