CN2744778Y - Opposite-pulling screw for fixing concrete formwork - Google Patents
Opposite-pulling screw for fixing concrete formwork Download PDFInfo
- Publication number
- CN2744778Y CN2744778Y CN 200420090823 CN200420090823U CN2744778Y CN 2744778 Y CN2744778 Y CN 2744778Y CN 200420090823 CN200420090823 CN 200420090823 CN 200420090823 U CN200420090823 U CN 200420090823U CN 2744778 Y CN2744778 Y CN 2744778Y
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- CN
- China
- Prior art keywords
- screw rod
- external
- screw
- top cap
- sleeve
- 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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- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The utility model discloses an opposite-pulling screw rod for fixing concrete form comprising a screw rod. The two outer ends of the screw rod are connected with a positioning piece fixing a concrete form. The screw rod is composed of three parts of a separate internal-pulling screw rod and two external-pulling screw rods. The end part of one end of the external-pulling screw rods is provided with a sleeve, and the both ends of the internal-pulling screw rod are respectively butt to butt connected with the external-pulling screw rods through the sleeves; the periphery of the sleeves is provided with a top cap. When the screw rod for a horizontal well is used, the internal and external screw rods are connected through the screw socket of the sleeves of the external screw rods; the top cap is frustum shaped. Compared with the existing technology, the top cap of the utility model is easy to be taken out after concrete forms are dismounted. After the external screw rod is screwed out from the screw socket at one end, the internal and external screw rods can be easily taken out together from the other end. Therefore, the screw rods and the top cap can be used repeatedly, the gas cutting operation is not needed, and the purpose of saving materials and labor is achieved.
Description
Affiliated technical field
It is a kind of when needing that on builing industry concrete formed wall, post, ground that the utility model belongs to, and often need concrete blinding be arranged to the metal parts of certain intervals by fastening devices.
Background technology
The concrete blinding construction works is a crucial ingredient in the concrete formation construction.The expense of form work engineering often surpasses concrete expense, even surpasses the summation of concrete and reinforcing bar expense.The cost of form work engineering comprises: the Master Cost of use, and artificial, the machinery expenses making, install and remove, the repeated use number of times of mould material, template is made salvage value of his time spent or the like in addition.Before the utility model was made, prior art generally adopted chock Screw arbor with nut at both-ends (referring to Fig. 1) to fix concrete blinding.Screw rod 3 is whole one among Fig. 1, two chocks 1 are through on the screw rod, stop the location through steel bar end 2 respectively, and concrete blinding is installed in the outside of two chocks, form the concrete space of pouring (certainly, every template needs to be finished by the polylith chock) between two templates.The dish-shaped fastener of template outer end or figure of three fastener are located through the screw rod end.
The defective of above-mentioned chock Screw arbor with nut at both-ends is: can only disposablely use, when concrete formation needs stripping, earlier the chock cutter is gone, cut the flat screw rod that exposes in the concrete outside with autogenous cutting again, consumptive material has not only also increased the workload of gas cutting.
Summary of the invention
For overcoming the above-mentioned deficiency of prior art, the Screw arbor with nut at both-ends that the utility model provides a kind of fixing concrete template of novel structure to use, the advantage that it has convenient disassembly behind the concrete formation, can use repeatedly.
The Screw arbor with nut at both-ends that a kind of fixing concrete template is used, comprise screw rod, screw rod two outer ends are connected with the keeper of fixing concrete template, its structural feature is: screw rod is by drawing screw rod and two sections to draw screw rod three parts to constitute outward in a section of split, draw screw rod one end end to be equipped with sleeve outward, in draw the screw rod two ends through sleeve respectively with outside draw screw rod to dock; Sleeve outer periphery crown cap.
During concrete enforcement, interior external screw rod is connected by external screw rod sleeve silk mouth; The top cap is frustoconical.
Beneficial effect: the utility model is compared with prior art products, and the top cap is easy to take out after the form removable, and after at one end external screw rod was back-outed by the silk mouth, the other end was easy to interior external screw rod is taken out in the lump.So not only screw rod, top cap can reuse, also need not carry out torch operation, have reached material-saving, saving of labor's purpose.
Description of drawings
Fig. 1 is the structural representation of chock contraposition screw rod in the prior art,
Fig. 2 is the broken section structural representation of an embodiment of the utility model,
Fig. 3 is the enlarged drawing of A portion among Fig. 2.
The specific embodiment
Sequence number is represented respectively among the figure: chock 1, steel bar end 2, screw rod 3, screw rod end 4, top cap 5,6 draws screw rod 7,9 outward, in draw screw rod 8, draw screw head 71,91 outward, pull oral area 72, in draw screw flight head 81, draw screw sleeve 92 outward, shirt rim 93.
The utility model is further elaborated by embodiment below in conjunction with accompanying drawing.
Referring to Fig. 1-3.Present embodiment comprises screw rod, and screw rod draws screw rod 7,9 one end ends to be equipped with sleeve 92 outward by drawing screw rod 8 and two sections to draw screw rod 7,9 three parts to constitute outward in a section of split, and sleeve 92 is a single piece with drawing screw rod outward.In draw the both ends of screw rod 8 to be provided with external screw thread, through the internal thread of sleeve 92 respectively with outside draw screw rod to dock; Radially be provided with the shirt rim on the end of sleeve 92, this shirt rim and top cap recess coupling can prevent to move in the cap of top, to guarantee the concrete thickness of pouring; The periphery of sleeve 92 is provided with frustoconical top cap 5,6, and the top cap can adopt polypropylene material to make.Two are drawn the outer end of screw rod to be connected the location through external screw thread with the keeper nut of fixing concrete template outward.
For considering that practice of construction needs, when the needs waterproof, in draw on the screw rod and as requested the sealing sheet can be set, at this moment, draw screw rod to be detained in the concrete solid in when removing.When not needing waterproof, can not establish the sealing sheet, can put plastic pipe on the screw rod interior drawing during construction, promptly dismountable inside and outside screw rod.
Claims (3)
1. Screw arbor with nut at both-ends that the fixing concrete template is used, comprise screw rod, screw rod two outer ends are connected with the keeper of fixing concrete template, it is characterized in that: screw rod is by drawing screw rod (8) and two sections to draw screw rod (7,9) three parts to constitute outward in a section of split, draw screw rod (7, a 9) end end to be equipped with sleeve (92) outward, in draw screw rod (8) two ends through sleeve (92) respectively with outside draw screw rod (7,9) to dock; Sleeve (92) outer periphery crown cap (5,6) radially is provided with shirt rim 93 on the end of sleeve 92, the recess of this shirt rim and top cap (5,6) is complementary.
2. the Screw arbor with nut at both-ends that a kind of fixing concrete template as claimed in claim 1 is used is characterized in that: in draw screw rod (8), draw screw rod (7,9) mouthful to connect outward by the silk on the sleeve (92).
3. the Screw arbor with nut at both-ends that a kind of fixing concrete template as claimed in claim 1 is used, it is characterized in that: the top cap is frustoconical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420090823 CN2744778Y (en) | 2004-10-03 | 2004-10-03 | Opposite-pulling screw for fixing concrete formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420090823 CN2744778Y (en) | 2004-10-03 | 2004-10-03 | Opposite-pulling screw for fixing concrete formwork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2744778Y true CN2744778Y (en) | 2005-12-07 |
Family
ID=35579559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420090823 Expired - Fee Related CN2744778Y (en) | 2004-10-03 | 2004-10-03 | Opposite-pulling screw for fixing concrete formwork |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2744778Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522545A (en) * | 2016-12-23 | 2017-03-22 | 中国人民解放军63926部队 | Self-disassembled adjustable opposite-pull screw device and assembling and disassembling method thereof |
| CN110528878A (en) * | 2018-05-25 | 2019-12-03 | 上海本祥遮阳科技有限公司 | A kind of telescopic detachable sealing up screw connector |
| CN110847591A (en) * | 2019-08-17 | 2020-02-28 | 赵克勤 | Square ridge type edge modular male and female template system |
-
2004
- 2004-10-03 CN CN 200420090823 patent/CN2744778Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522545A (en) * | 2016-12-23 | 2017-03-22 | 中国人民解放军63926部队 | Self-disassembled adjustable opposite-pull screw device and assembling and disassembling method thereof |
| CN110528878A (en) * | 2018-05-25 | 2019-12-03 | 上海本祥遮阳科技有限公司 | A kind of telescopic detachable sealing up screw connector |
| CN110847591A (en) * | 2019-08-17 | 2020-02-28 | 赵克勤 | Square ridge type edge modular male and female template system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051207 Termination date: 20111003 |