CN103727109A - Expansion screw free to assemble and disassemble - Google Patents
Expansion screw free to assemble and disassemble Download PDFInfo
- Publication number
- CN103727109A CN103727109A CN201210390379.2A CN201210390379A CN103727109A CN 103727109 A CN103727109 A CN 103727109A CN 201210390379 A CN201210390379 A CN 201210390379A CN 103727109 A CN103727109 A CN 103727109A
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- China
- Prior art keywords
- special
- lead screw
- setscrew
- shaped
- nut
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- 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 invention provides an expansion screw free to assemble and disassemble. An expansion pipe and a special-shaped taper nut are sequentially installed on a screw rod. The expansion screw is arranged in a drilled hole, the screw rod is rotated, the opening strip shape of the expansion pipe is extruded by the special-shaped taper nut and expanded, and therefore the effect of expansion and fixation is achieved. Due to the fact that the nut is installed reversely, just a screw cap of the screw rod is exposed after fixation. When the expansion screw is disassembled, due to the fact that the opening strip shape of the expansion pipe and saw-tooth barbs on the corners of the special-shaped taper nut are mutually hooked and expanded and then are integrated with the hole, the screw rod can be retreated, and the expansion pipe and the special-shaped taper nut are left in the hole and can be reinforced and used again by inserting the screw rod in case of needs. The screw rod can be a T-shaped screw rod with threads or a hook head screw rod or a circular-ring head screw rod. The expansion screw is free to assemble and disassemble, capable of being repeatedly used and simple in manufacturing process.
Description
Technical field
The present invention relates to a kind of screw that connects use is installed, particularly one can be installed and removed setscrew freely.
Background technique
At present, widely used existing setscrew, the rear portion of its lead screw is taper, during operation, expansion tube and lead screw are put into pre-drilled hole, Deng installation, need after fixing parts, then use fastening nuts, expansion tube and lead screw tapered tail are interacted, reach the object of expansion fastening, in when operation, lead screw was by wall, stretch out, nut is revolved tightlyer, the extension of lead screw is just longer, its kenel is not attractive in appearance, dangerous yet.Existing setscrew can not repeatedly be installed and removed use, when punching mounting point is not suitable for or after fixture removes, lead screw is with regard in original place or building, attractive in appearance on building, furniture impact, and people is had to potential risk.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiency that prior art exists, and provides one to be fixed on wall, ground, furniture equipotential and is set up after face, only demonstrates the nut of a lead screw or what demonstrate is hook or the annulus configuring according to demand.Remove on the positions such as wall after expanding screw screw mandrel, ground, furniture, what demonstrate only has an aperture, again needs to use at any time the setscrew of mounting or dismounting again.
The present invention is achieved through the following technical solutions: a kind of setscrew can select the various material such as metal, plastics to make according to demand, lead screw, expansion tube, special-shaped taper nut, consists of, and expansion tube, special-shaped taper nut are housed in lead screw successively.Lead screw can be T-shaped lead screw, hook head lead screw, the annulus head screw bar being equipped with according to demand with tap.Needed expansion tube is that one end of expansion tube is designed to three, four or the opening bar shaped of the number of opening according to demand, has jagged barb on the both sides of opening bar shaped.Special-shaped taper nut can be designed as triangle taper nut, quadrangular pyramid shape nut or is designed to according to demand the nut of other shapes, and the corner angle of special-shaped taper nut are designed with jagged barb.The joining portion of the corresponding expansion tube opening of the corner angle bar shaped of special-shaped taper nut, jagged barb hands over folder to be combined into one mutually by both party.
The present invention compared with prior art has following beneficial effect: because the present invention oppositely installs nut, after being fixed, at wall, ground, furniture equipotential, be set up after face, only show the nut of a lead screw or what demonstrate is hook or the annulus configuring according to demand, lead screw is stretched in pre-drilled hole after rotating owing to exerting all one's strength, solved lead screw expose longer, neither beauty unsafe problem again.When lead screw is oppositely unloaded while tearing open, because the flexuose barb of the bar shaped of expansion tube opening and special-shaped taper nut corner angle is handed over mutually, folder is combined expanded to be integrated with hole, lead screw is just easy to withdraw, expansion tube and special-shaped taper nut are stayed in original hole, what the surface of positions such as wall, ground, furniture only showed is an aperture, has therefore solved after original setscrew dismounting, and lead screw is difficult to the problem of taking out, while using, inject lead screw and just can again recover reinforcement effect next time.Can select according to demand material, size and the kind of setscrew, fixing for connection, apparatus, article and the building of all kinds of furniture assemblies, ground etc.The present invention installs and removes freedom, production technology is simple, and the various purposes of material is wide, easy construction safety.
Accompanying drawing explanation:
Below in conjunction with drawings and Examples, the present invention is described further.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the outer sectional view of lead screw of the present invention;
Fig. 3 is expansion tube sectional view of the present invention;
Fig. 4 is special-shaped taper nut sectional view of the present invention;
In figure: 1, lead screw; 2, expansion tube; 3, special-shaped taper nut.
Specifically execute mode:
As shown in Figure 1, the present invention is comprised of lead screw (1), expansion tube (2), special-shaped taper nut (3), and expansion tube (2), special-shaped taper nut (3) are housed in lead screw (1) successively.
As shown in Figure 2, lead screw of the present invention (1) can be T-shaped lead screw, hook head lead screw, the annulus head screw bar being equipped with according to demand with tap.
As shown in Figure 3, expansion tube of the present invention (2) is that one end of expansion tube is designed to three, four or open according to demand several opening bar shapeds, and opening bar shaped has jagged barb on both sides.
As shown in Figure 4, special-shaped taper nut of the present invention (3) can be designed as triangle taper nut, quadrangular pyramid shape nut or is designed to according to demand the nut of other shapes, and the corner angle of special-shaped taper nut are designed with jagged barb.
During use, first according to operation requirements, at corresponding positions such as wall, ground, furniture, bore a hole, select suitable setscrew of the present invention to put hole into, the tight moving lead screw (1) of rotation, the opening bar shaped of expansion tube (2) is subject to special-shaped taper nut (3) extruding and expanse, so that reaches the firm effect of expanding.
Because expansion tube (2) is integrated with effect expansion and the hole formation of the mutual hook of the flexuose barb of special-shaped taper nut (3), the lead screw of the setscrew of having reinforced (1) is easy to withdraw, expansion tube (2) is just stayed in original hole with special-shaped taper nut (3), what the surface of positions such as wall, ground, furniture only showed is an aperture, therefore solved after original setscrew dismounting, lead screw (1) has been taken out easily.
If need to reuse setscrew next time, lead screw (1) is inserted and just can be entered in special-shaped taper nut (3), the tight moving lead screw (1) of rotation again, the opening bar shaped of expansion tube (2) is subject to special-shaped taper nut (3) extruding and expands, and can also reach the firm effect of expanding.
While making processing furniture, expansion tube (2) and special-shaped taper nut (3) can be connected as one, be put in the hole of accomplishing fluently, during composite furniture, fastening just passable by lead screw (1), be connected firmly, economical and practical.
Claims (6)
1. install and remove setscrew freely and formed by lead screw (1), expansion tube (2), special-shaped taper nut (3) for one kind, it is characterized in that: expansion tube (2), special-shaped taper nut (3) are housed in lead screw (1) successively.
2. one according to claim 1 is installed and removed setscrew freely, it is characterized in that: joining portion flexuose barb stranded being integrated mutually between corresponding expansion tube (2) the opening bar shaped of corner angle of special-shaped taper nut (3), put into the hole of accomplishing fluently, during operation, by lead screw (1), connected fastening just passable.
3. one according to claim 1 is installed and removed setscrew freely, it is characterized in that: described lead screw (1) is T-shaped lead screw, hook head lead screw, the annulus head screw bar with tap according to demand.
4. one according to claim 1 is installed and removed setscrew freely, it is characterized in that: described expansion tube (2) be by one end of expansion tube (2) be designed to three or four opening bar shapeds or according to demand quantity open multiple opening bar shapeds, opening bar shaped has jagged barb on both sides.
5. one according to claim 1 is installed and removed setscrew freely, it is characterized in that: described special-shaped taper nut (3) can be designed as triangle taper nut, quadrangular pyramid shape nut, or be designed to according to demand the nut of other shapes, on the corner angle of special-shaped taper nut, be designed with jagged barb.
6. one according to claim 1 is installed and removed setscrew freely, it is characterized in that: described setscrew selects the materials such as metal, plastics to make according to demand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210390379.2A CN103727109A (en) | 2012-10-16 | 2012-10-16 | Expansion screw free to assemble and disassemble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210390379.2A CN103727109A (en) | 2012-10-16 | 2012-10-16 | Expansion screw free to assemble and disassemble |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103727109A true CN103727109A (en) | 2014-04-16 |
Family
ID=50451341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210390379.2A Pending CN103727109A (en) | 2012-10-16 | 2012-10-16 | Expansion screw free to assemble and disassemble |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103727109A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2132858Y (en) * | 1992-07-14 | 1993-05-12 | 杨辉 | Shaped nut type upset bolt |
| CN2522660Y (en) * | 2001-11-01 | 2002-11-27 | 金太阳精密工业股份有限公司 | Expansion screw |
| EP1335140A1 (en) * | 2002-02-07 | 2003-08-13 | Fischerwerke Artur Fischer GmbH & Co. KG | Expanding dowel |
| CN2791327Y (en) * | 2005-04-28 | 2006-06-28 | 周洪胜 | Directly-mounted anti-dismounting anti-rotating expansion bolt |
| EP2065601A2 (en) * | 2007-11-29 | 2009-06-03 | ITW CONSTRUCTION PRODUCTS ITALY S.r.l. | Expansion anchor |
| CN101825130A (en) * | 2009-03-03 | 2010-09-08 | 郭振春 | Easily detachable expansion bolt |
| CN202082224U (en) * | 2011-05-31 | 2011-12-21 | 鹏驰五金制品有限公司 | Eye expansion screw with improved structure |
-
2012
- 2012-10-16 CN CN201210390379.2A patent/CN103727109A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2132858Y (en) * | 1992-07-14 | 1993-05-12 | 杨辉 | Shaped nut type upset bolt |
| CN2522660Y (en) * | 2001-11-01 | 2002-11-27 | 金太阳精密工业股份有限公司 | Expansion screw |
| EP1335140A1 (en) * | 2002-02-07 | 2003-08-13 | Fischerwerke Artur Fischer GmbH & Co. KG | Expanding dowel |
| CN2791327Y (en) * | 2005-04-28 | 2006-06-28 | 周洪胜 | Directly-mounted anti-dismounting anti-rotating expansion bolt |
| EP2065601A2 (en) * | 2007-11-29 | 2009-06-03 | ITW CONSTRUCTION PRODUCTS ITALY S.r.l. | Expansion anchor |
| CN101825130A (en) * | 2009-03-03 | 2010-09-08 | 郭振春 | Easily detachable expansion bolt |
| CN202082224U (en) * | 2011-05-31 | 2011-12-21 | 鹏驰五金制品有限公司 | Eye expansion screw with improved structure |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140416 |