CN202012197U - Opposite-pull bolt for concrete wall formworks - Google Patents
Opposite-pull bolt for concrete wall formworks Download PDFInfo
- Publication number
- CN202012197U CN202012197U CN 201120042556 CN201120042556U CN202012197U CN 202012197 U CN202012197 U CN 202012197U CN 201120042556 CN201120042556 CN 201120042556 CN 201120042556 U CN201120042556 U CN 201120042556U CN 202012197 U CN202012197 U CN 202012197U
- Authority
- CN
- China
- Prior art keywords
- bolt
- opposite
- nut
- concrete wall
- pull bolt
- 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-pull bolt for concrete wall formworks, which comprises a long screw with inner threads at two ends and two short screws which are respectively connected with the long screw in threaded mode, the short screws are provided with external threads, the outer end portion of each short screw is provided with a nut, and the inside of each nut is provided with a crescent clamping piece. After the wall formworks of concrete walls adopting the opposite-pull bolt are disassembled, the portion of the screws exposed on the concrete walls can be directly screwed off through a wrench without use of cutting devices such as electric saws, acetylene and the like, so that the bolt is convenient and easy to use. Simultaneously, the screwed portions can be directly utilized next time.
Description
Technical field:
The utility model relates to a kind of concrete wall template split bolt.
Background technology:
In the concrete wall work progress, the concrete that pours into can produce huge horizontal impact power to wall form, thereby causes bloated mould, has influenced workmanship.Existing general solution is, is not more than the displacement that one split bolt of 0.25 square meter setting pins template restriction template along template surface, and this split bolt mainly is made up of screw rod 1, " crescent " intermediate plate 2, nut 3, and its structure as shown in Figure 1.Its shortcoming is after concreting finishes, and screw rod stretches out concrete surface one and cuts greatly, needs artificial cutting exposed parts, because must ascend operation during cutting, cutting appliance such as hand electric cutting machine, acetylene combustion etc. carry very inconvenient so; Screw rod exposed parts under the excision can only be as waste disposal simultaneously, the waste steel.
Summary of the invention:
For overcoming the defective of prior art, the purpose of this utility model is to provide a kind of concrete wall template split bolt, concrete wall is after form removal, the screw rod that exposes outside the concrete part can directly be backed out with spanner, and do not need cutting appliances such as electric saw, acetylene, convenient and swift, the exposed parts of backing out simultaneously can be directly used in and utilize next time.
The utility model technical solution problem adopts following technical scheme:
A kind of concrete wall template split bolt, comprise that two ends have the long bolt of internal thread, and two be threaded with described long bolt respectively have an externally threaded short screw, the outer end of each described short screw is provided with nut, the inboard of each described nut is provided with the crescent intermediate plate.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
Adopt bolt of the present utility model, when concrete wall after form removal, the short screw that exposes outside concrete part can directly be backed out with spanner, and do not need electric saw, cutting appliance such as acetylene, convenient and swift, the exposed parts of backing out simultaneously can be directly used in and utilize next time.
Description of drawings:
Fig. 1 is the structural representation of existing bolt; Fig. 2 is the structural representation of the utility model bolt; Fig. 3-5 is the construction sequence figure of the utility model bolt.
Number in the figure: 1 screw rod, 2 crescent intermediate plates, 3 nuts, 4 long bolts, 5 short screws, 6 templates, 7 backing steel pipes.
Below pass through the specific embodiment, and the utility model is described in further detail in conjunction with the accompanying drawings.
The specific embodiment:
Embodiment: in conjunction with Fig. 2, the split bolt of present embodiment, comprise that two ends have the long bolt 4 of internal thread, and two be threaded with described long bolt respectively have an externally threaded short screw 5, the outer end of each described short screw is provided with nut 3, and the inboard of each described nut is provided with crescent intermediate plate 2.
In conjunction with Fig. 3-5, during construction, step is as follows:
The first step: two short screws 5 are screwed into the both ends of long bolt 4 respectively and tighten.
Second step: bolt is penetrated in the template 6.
The 3rd step: install and fixedly backing steel pipe 7 and crescent intermediate plate 2, and fix with nut 3.
The form removal construction then gets final product according to the formwork order is reverse.
Claims (1)
1. concrete wall template split bolt, it is characterized in that comprising that two ends have the long bolt of internal thread (4), and two be threaded with described long bolt respectively have an externally threaded short screw (5), the outer end of each described short screw is provided with nut (3), and the inboard of each described nut is provided with crescent intermediate plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120042556 CN202012197U (en) | 2011-06-27 | 2011-06-27 | Opposite-pull bolt for concrete wall formworks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120042556 CN202012197U (en) | 2011-06-27 | 2011-06-27 | Opposite-pull bolt for concrete wall formworks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202012197U true CN202012197U (en) | 2011-10-19 |
Family
ID=44782808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120042556 Expired - Fee Related CN202012197U (en) | 2011-06-27 | 2011-06-27 | Opposite-pull bolt for concrete wall formworks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202012197U (en) |
-
2011
- 2011-06-27 CN CN 201120042556 patent/CN202012197U/en not_active Expired - Fee Related
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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: 20111019 Termination date: 20120627 |