CN103615109A - Opposite-pull screw rod - Google Patents
Opposite-pull screw rod Download PDFInfo
- Publication number
- CN103615109A CN103615109A CN201310619729.2A CN201310619729A CN103615109A CN 103615109 A CN103615109 A CN 103615109A CN 201310619729 A CN201310619729 A CN 201310619729A CN 103615109 A CN103615109 A CN 103615109A
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- screw rod
- sleeve
- screw
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- pedestal
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Abstract
The invention discloses an opposite-pull screw rod which comprises a distance control screw rod. A locating screw rod A is connected to one end of the distance control screw rod in a threaded mode, and a locating screw rod B is connected to the other end of the distance control screw rod in a welding mode. A sleeve A of a hollow circular truncated cone structure is arranged on the locating screw rod A in a sleeved mode, and a sleeve B of a hollow circular truncated cone structure is arranged on the locating screw rod B in a sleeved mode. Three locating ribs are evenly distributed on the outer wall of the sleeve B. A plastic sleeve is further arranged on the distance control screw rod in a sleeved mode, and the two ends of the plastic sleeve butt against a base A and a base B respectively. The opposite-pull screw rod is simple in structure and convenient to assemble, the distance control screw rod, the locating screw rods and the sleeves can be detached from a poured object easily and can be used repeatedly, a large amount of rolled steel is saved, a large amount of manpower and material resources are also saved, waste of energy resources is reduced, and cost is lowered to a large extent.
Description
Technical field
The present invention relates to a kind of Screw arbor with nut at both-ends, particularly a kind of Screw arbor with nut at both-ends supporting that connects for building operations template.
Background technology
At present, in the cast-in-place concrete construction of building, generally all can adopt Screw arbor with nut at both-ends device.The Screw arbor with nut at both-ends of conventional structure, include spacing screw rod, two positioning screws and two sleeves, before building, first spacing screw rod and positioning screw are arranged on to sleeve both sides, then the free end of positioning screw is run through to template, finally by fixture and nut, positioning screw and template are gripped.But there is following defect in this Screw arbor with nut at both-ends:
(1) after pouring concrete work completes, not only spacing screw rod cannot take out, simultaneously for preventing the destroyed planeness with guaranteeing cast molding back wall of template, also need to stretch out the screw rod excision of body of wall both sides, not only caused the waste of great deal of steel, and workman's workload is large and inefficiency;
(2) owing to conventionally adopting the mode that positioning screw is screwed out to dismantle spacing screw rod and the positioning screw being placed in concrete, the dismounting mode of this back-out is easy to cause the corotation in concrete apart from screw rod and positioning screw, and spacing screw rod and positioning screw can not be screwed out;
(3) the screw binding site of spacing screw flight and positioning screw, easily by corrosion or obstruction, causes screw thread and screw to be difficult to advance and retreat, so that not easy to assemble;
(4) the easy corrosion spacing of the corrosion composition screw rod of cement, material such as slurry sand etc., or be attached on spacing screw rod, causes spacing screw rod to be scrapped or not easy to assemble.
Summary of the invention
In view of above-mentioned weak point, the object of the present invention is to provide a kind of simple in structurely, screw rod can repeated removal be used, and not only positioning screw can be reused after pulling down, and spacing screw rod also can be pulled down reusable Screw arbor with nut at both-ends.
In order to achieve the above object, the present invention has adopted following technical scheme:
A Screw arbor with nut at both-ends, comprises spacing screw rod, and described spacing screw rod one end has been threaded connection positioning screw A, and the other end is welded with positioning screw B;
Described positioning screw A is comprised of base A, pedestal A and screw rod A, has the screw matching with spacing screw flight on base A, and described pedestal A front end is hexagonal head; During operation, by the pedestal A front end hexagonal head application of force being realized to the back-out of positioning screw A and sleeve A, remove, convenient disassembly, reduces the loss of sleeve, has shortened striking time, and efficiency of construction is provided.
The cross section of described base A, pedestal A and screw rod A diminishes successively;
The upper cover of described positioning screw A has the sleeve A of hollow round table structure, sleeve A inner ring middle and lower part is provided with the through hole A matching with pedestal A, described through hole A inner peripheral surface is evenly equipped with some tooth bars, and these some tooth bars can radially fixed positioning screw A, prevents from occurring dallying between positioning screw A and sleeve A; Described through hole A bottom and sleeve A inwall form a concave station A, and described base A embeds in concave station A, and the fit system of this concave station A and base A has played good sealing function, can effectively prevent that cement paste sand is by sleeve A and positioning screw A joint portion seepage; In described through hole A, upper end is fixed on sleeve A inwall by some reinforcing rib A, and the setting of this reinforcing rib A has not only improved the intensity that through hole is attached to sleeve A inwall, has also reduced to greatest extent materials, has saved cost.
Described positioning screw B is by base B, and pedestal B and screw rod B form, and its pedestal B is six prisms;
Described base B, pedestal B and screw rod B directly diminish successively;
The upper cover of described positioning screw B has the sleeve B of hollow round table structure, and sleeve B inner ring middle and lower part is provided with the turret head through hole B matching with pedestal B, and described turret head through hole B bottom and sleeve B inwall form a concave station B, and described base B embeds in concave station B; In described turret head through hole B, upper end is fixed on sleeve B inwall by some reinforcing rib B;
On described sleeve B outer wall, be evenly distributed with 3 location ribs.
On described spacing screw rod, also cover has plastic sheath, and plastic sheath two ends are respectively against base A and base B.
Optimum, described sleeve A and sleeve B are PE plastic sleeve.
During use, before building, first plastic sheath is enclosed within on spacing screw rod, then positioning screw A and spacing screw flight are spun, be respectively again positioning screw A and positioning screw B cover upper bush A and sleeve B, screw rod A and screw rod B are run through to template, finally by fixture and nut, screw rod A and screw rod B and template are gripped.After having built, first adopt the force application means matching with pedestal A front end hexagonal head, positioning screw A and sleeve A are screwed out, owing to being evenly provided with 3 location ribs on the outer wall at sleeve B, 3 of this location location rib can be radially firmly fixing by sleeve B, positioning screw B and spacing screw rod, it can not be rotated, so very easily just just positioning screw A and sleeve A screw out.Now adopt again the force application means matching with positioning screw B, sleeve B, positioning screw B and spacing screw rod are released from build thing, now, on the outer wall of sleeve B, be evenly provided with 3 location ribs again in the effect of axially having played guiding, make sleeve B, positioning screw B and spacing screw rod be easy to extract out from build thing.
Beneficial effect of the present invention is:
(1) the present invention is simple in structure, easy to assembly, spacing screw rod, positioning screw and sleeve very easily take apart from build thing, spacing screw rod, positioning screw and sleeve can repeatedly reuse, not only save great deal of steel, also saved a large amount of manpowers, material resources, reduced the waste of the energy, greatly the reduction of degree cost.
(2) the location rib arranging on sleeve outer surface at one end, it is radially playing good fixation, can effectively prevent the dismounting difficult problem bringing due to corotation when screwing out the positioning screw of the other end, also axially play certain guide effect, making sleeve B, positioning screw B and spacing screw rod be easy to extract out from build thing.
(3) on spacing screw rod, cover has plastic sheath, and these plastic sheath two ends push against respectively base A and base B.First, this plastic sheath can effectively prevent from being attached on spacing screw rod, the phenomenon of avoiding spacing screw rod not extract; Also can avoid spacing screw rod by the bonding rear difficult elimination of the materials such as cement, paint, the phenomenon that causes screw rod to be scrapped.Secondly, this plastic sheath also can effectively prevent the corrosion composition corrosion spacing screw rod in cement paste sand, can also play good antiseep effect.Moreover this plastic sheath can also avoid the screw binding site of spacing screw flight and positioning screw by corrosion or obstruction, can not cause screw thread and screw to be difficult to advance and retreat, so that occur not easy-to-dismount problem.
Accompanying drawing explanation
Fig. 1 structural representation of the present invention;
Fig. 2 is for removing the structural representation of sleeve and plastic sheath in Fig. 1;
Fig. 3 is the structural representation of positioning screw A;
Fig. 4 is the left TV structure schematic diagram of Fig. 3;
Fig. 5 is the structural representation of positioning screw B;
The left TV structure schematic diagram of Fig. 6 Fig. 5;
Fig. 7 is the structural representation of looking up of sleeve A;
Fig. 8 is that the A of Fig. 7 is to structural representation;
Fig. 9 is the structural representation of looking up of sleeve B;
Figure 10 is that the A of Fig. 8 is to structural representation.
In figure: 1, spacing screw rod; 2, positioning screw A; 2.1, base A; 2.2, pedestal A; 2.3, screw rod A; 3, positioning screw B; 3.1, base B; 3.2, pedestal B; 3.3, screw rod B; 4, sleeve A; 4.1, through hole A; 4.2, concave station A; 4.3, reinforcing rib A; 5, sleeve B; 5.1, turret head through hole B; 5.2, concave station B; 5.3, reinforcing rib B; 6, location rib; 7, plastic sheath.
The specific embodiment
Below we in connection with specific embodiment, the present invention is further illustrated.
Shown in Fig. 1 and Fig. 2, a kind of Screw arbor with nut at both-ends, comprises spacing screw rod 1, and spacing screw rod 1 one end has been threaded connection positioning screw A2, and the other end is welded with positioning screw B3; Shown in Fig. 3 and Fig. 4, positioning screw A2 is comprised of base A2.1, pedestal A2.2 and screw rod A2.3, has the screw matching with spacing screw rod 1 screw thread on base A2.1, and pedestal A2.2 front end is hexagonal head; The cross section of base A2.1, pedestal A2.2 and screw rod A2.3 diminishes successively; The upper cover of positioning screw A2 has the sleeve A4 of hollow round table structure, as shown in Figure 7, sleeve A4 inner ring middle and lower part is provided with the through hole A4.1 matching with pedestal A2.2, through hole A4.1 inner peripheral surface is evenly equipped with some tooth bars, through hole A4.1 bottom and sleeve A4 inwall form a concave station A4.2, and base A2.1 embeds in concave station A4.2; In through hole A4.1, upper end is fixed on sleeve A4 inwall by some reinforcing rib A4.3.
Shown in Fig. 5 and Fig. 6, positioning screw B3 is by base B3.1, and pedestal B3.2 and screw rod B3.3 form, and its pedestal B3.2 is six prisms; The cross section of base B3.1, pedestal B3.2 and screw rod B3.3 diminishes successively; The upper cover of positioning screw B3 has the sleeve B5 of hollow round table structure, shown in Fig. 8 and Fig. 9, sleeve B5 inner ring middle and lower part is provided with the turret head through hole B5.1 matching with pedestal B3.2, and turret head through hole B5.1 bottom and sleeve B5 inwall form a concave station B5.2, and base B3.1 embeds in concave station B5.2; In turret head through hole B5.1, upper end is fixed on sleeve B5 inwall by some reinforcing rib B5.3; On sleeve B5 outer wall, be evenly distributed with 3 location ribs 6.
On spacing screw rod 1, also cover has plastic sheath 7, and plastic sheath 7 two ends are respectively against base A2.1 and base B3.1.Sleeve A4 and sleeve B5 are PE plastic sleeve.
Claims (6)
1. a Screw arbor with nut at both-ends, comprises spacing screw rod (1), it is characterized in that:
Described spacing screw rod (1) one end has been threaded connection positioning screw A(2), the other end is welded with positioning screw B(3);
Described positioning screw A(2) by base A(2.1), pedestal A(2.2) and screw rod A(2.3) form base A(2.1) on have the screw matching with spacing screw rod (1) screw thread, described pedestal A(2.2) front end is hexagonal head;
Described positioning screw A(2) upper cover has the sleeve A(4 of hollow round table structure), sleeve A(4) inner ring middle and lower part is provided with and pedestal A(2.2) the through hole A(4.1 that matches), described through hole A(4.1) inner peripheral surface is evenly equipped with some tooth bars, described through hole A(4.1) bottom and sleeve A(4) inwall forms a concave station A(4.2), described base A(2.1) embed concave station A(4.2) in; Described through hole A(4.1) in, upper end is by some reinforcing rib A(4.3) be fixed on sleeve A(4) inwall;
Described positioning screw B(3) by base B(3.1), pedestal B(3.2) and screw rod B(3.3) form its pedestal B(3.2) be six prisms;
Described positioning screw B(3) upper cover has the sleeve B(5 of hollow round table structure), sleeve B(5) inner ring middle and lower part is provided with and pedestal B(3.2) the turret head through hole B(5.1 that matches), described turret head through hole B(5.1) bottom and sleeve B(5) inwall forms a concave station B(5.2), described base B(3.1) embed concave station B(5.2) in; Described turret head through hole B(5.1) in, upper end is by some reinforcing rib B(5.3) be fixed on sleeve B(5) inwall.
2. a kind of Screw arbor with nut at both-ends according to claim 1, is characterized in that: described sleeve B(5) on outer wall, be evenly distributed with 3 location ribs (6).
3. a kind of Screw arbor with nut at both-ends according to claim 1, is characterized in that: on described spacing screw rod (1), also cover has plastic sheath (7), and plastic sheath (7) two ends are respectively against base A(2.1) and base B(3.1).
4. a kind of Screw arbor with nut at both-ends according to claim 1, is characterized in that: described sleeve A(4) and sleeve B(5) be PE plastic sleeve.
5. a kind of Screw arbor with nut at both-ends according to claim 1, is characterized in that: described base A(2.1), pedestal A(2.2) and screw rod A(2.3) cross section diminish successively.
6. a kind of Screw arbor with nut at both-ends according to claim 1, is characterized in that: described base B(3.1), pedestal B(3.2) and screw rod B(3.3) cross section diminish successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310619729.2A CN103615109B (en) | 2013-11-29 | 2013-11-29 | A kind of Screw arbor with nut at both-ends |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310619729.2A CN103615109B (en) | 2013-11-29 | 2013-11-29 | A kind of Screw arbor with nut at both-ends |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103615109A true CN103615109A (en) | 2014-03-05 |
| CN103615109B CN103615109B (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310619729.2A Active CN103615109B (en) | 2013-11-29 | 2013-11-29 | A kind of Screw arbor with nut at both-ends |
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| Country | Link |
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| CN (1) | CN103615109B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112459463A (en) * | 2020-11-12 | 2021-03-09 | 上海宏构建筑科技发展有限公司 | Scratch-resistant easy-to-assemble aluminum film plate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2534292Y (en) * | 2002-03-06 | 2003-02-05 | 仰正福 | Counter screw shuttering |
| CA2677054A1 (en) * | 2007-02-01 | 2008-08-07 | Greenstreak Group, Inc. | Mechanical plug and method for using the same |
| CN201649647U (en) * | 2010-05-13 | 2010-11-24 | 戴安汪 | Split screw |
| EP2542739A1 (en) * | 2010-03-01 | 2013-01-09 | G.B.E. | Method and equipment for the in situ construction of a sandwich wall comprising two concrete walls separated by an insulation board |
-
2013
- 2013-11-29 CN CN201310619729.2A patent/CN103615109B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2534292Y (en) * | 2002-03-06 | 2003-02-05 | 仰正福 | Counter screw shuttering |
| CA2677054A1 (en) * | 2007-02-01 | 2008-08-07 | Greenstreak Group, Inc. | Mechanical plug and method for using the same |
| EP2542739A1 (en) * | 2010-03-01 | 2013-01-09 | G.B.E. | Method and equipment for the in situ construction of a sandwich wall comprising two concrete walls separated by an insulation board |
| CN201649647U (en) * | 2010-05-13 | 2010-11-24 | 戴安汪 | Split screw |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112459463A (en) * | 2020-11-12 | 2021-03-09 | 上海宏构建筑科技发展有限公司 | Scratch-resistant easy-to-assemble aluminum film plate |
| CN112459463B (en) * | 2020-11-12 | 2022-06-17 | 上海宏构建筑科技发展有限公司 | Scratch-resistant easy-to-assemble aluminum film plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103615109B (en) | 2015-10-21 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Address after: No. 9, Wuhou District grass road, Wuhou District, Chengdu, Sichuan Patentee after: CITIC Guoan Construction Group Co., Ltd. Address before: No. 9, Wuhou District grass road, Wuhou District, Chengdu, Sichuan Patentee before: Sichuan Shengmao Construction Co., Ltd. |