CN204530456U - A kind of Novel comb tooth plate stretching device anchor bolt - Google Patents
A kind of Novel comb tooth plate stretching device anchor bolt Download PDFInfo
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- CN204530456U CN204530456U CN201420770431.1U CN201420770431U CN204530456U CN 204530456 U CN204530456 U CN 204530456U CN 201420770431 U CN201420770431 U CN 201420770431U CN 204530456 U CN204530456 U CN 204530456U
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- bolt
- steel bushing
- plate
- damping piece
- pressing plate
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Abstract
A kind of Novel comb tooth plate stretching device anchor bolt, relate to bridge construction field, it comprises bolt, pressing plate, damping piece, rotor plate, steel bushing and shrouding, described steel bushing upper end open, the lower end of steel bushing is fixed on shrouding, the inwall of steel bushing is provided with the internal thread matched with the external screw thread on pressing plate, steel bushing inside is provided with rotor plate from the bottom up according to this, damping piece, pressing plate, described bolt bottom is positioned at steel bushing, bolt is from the bottom up successively through rotor plate, damping piece, pressing plate, the upper end of bolt is stretched out outside steel bushing and is connected with the portable plate of comb plate, described rotor plate, damping piece, bolt can rotate by opposing platen, damping piece is elastic body.The utility model adopts brand-new form of structure, long service life, simultaneously can change bolt not destroying in concrete situation, convenient and practical.
Description
Technical field
The utility model relates to bridge construction field, is a kind of Novel comb tooth plate stretching device anchor bolt specifically.
Background technology
Bridge expanssion joint refers to as preventing bridge beam body component due to climate temperature change (heat expansion, shrinkage), makes structure produce crack or destruction and a build joint arranging along the suitable position in bridge beam body constuction joint direction.Shrinkage joint be by basis more than building unit be divided into two independent sectors, make building or structure can do horizontal extension along length direction.
Existing highway bridge shrinkage joint is generally divided into two kinds of modes, and one is modular expansion device, and another kind is that comb is board-like.Modular expansion device is made up of some whole root type steel, side bar steel welds reserving rib welding fabrication in anchor rib and bridge preformed groove and concreting forms, after stretching device damages, can only whole replacing, in Renewal process, more than concrete 200 millimeters thick must be cut, again new stretching device is welded, because concrete adopts steel fibrous concrete, remove cost higher, also can affect traffic simultaneously; The board-like stretching device anchor bolt of another kind of comb adopts high-strength bolt, directly be anchored in concrete, in anchoring procedure, anchor bolt needs welding location, anchor bolt is because of heating generation weld crack, even can rupture, cause anchor bolt anchoring insecure, cause the earlier period damage of stretching device.
Utility model content
In order to overcome the shortcoming that above-mentioned prior art exists, the purpose of this utility model is to provide a kind of Novel comb tooth plate stretching device anchor bolt, and it adopts brand-new form of structure, long service life, simultaneously can change bolt not destroying in concrete situation, convenient and practical.
In order to solve the problem, the utility model is by the following technical solutions: a kind of Novel comb tooth plate stretching device anchor bolt, it is characterized in that, comprise bolt, pressing plate, damping piece, rotor plate, steel bushing and shrouding, described steel bushing upper end open, the lower end of steel bushing is fixed on shrouding, the inwall of steel bushing is provided with the internal thread matched with the external screw thread on pressing plate, steel bushing inside is provided with rotor plate from the bottom up according to this, damping piece, pressing plate, described bolt bottom is positioned at steel bushing, bolt is from the bottom up successively through rotor plate, damping piece, pressing plate, the upper end of bolt is stretched out outside steel bushing and is connected with the portable plate of comb plate, described rotor plate, damping piece, bolt can rotate by opposing platen, damping piece is elastic body.
The beneficial effects of the utility model are:
When 1, there is bolt failure when stretching device runs, only need rotary pressure plate to be unloaded in steel sleeve by pressing plate, take out bolt, damping piece and rotor plate, change damaged part, very convenient.
2, easy to install, installation process can not cause damage to bolt.
3, bolt forms a rotor by pressing plate, damping piece, rotor plate, and the portable plate reducing comb plate passes to the stressed of bolt, improves application life.
4, damping piece is elastic body, can cushion pressure, enhances the impact resistance of bolt, improves application life.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described further:
Fig. 1 is structural representation of the present utility model;
In figure: 1 bolt, 2 pressing plates, 3 damping pieces, 4 rotor plates, 5 steel bushings, 6 shroudings.
Detailed description of the invention
As shown in Figure 1, a kind of Novel comb tooth plate stretching device anchor bolt, comprise bolt 1, pressing plate 2, damping piece 3, rotor plate 4, steel bushing 5 and shrouding 6, described steel bushing 5 upper end open, the lower end of steel bushing 5 is fixed on shrouding 6, the inwall of steel bushing 5 is provided with the internal thread matched with the external screw thread on pressing plate 2, steel bushing 5 inside is provided with rotor plate 4 from the bottom up according to this, damping piece 3, pressing plate 2, described bolt 1 bottom is positioned at steel bushing 5, bolt 1 is from the bottom up successively through rotor plate 4, damping piece 3, pressing plate 2, the upper end of bolt 1 is stretched out outside steel bushing 5 and is connected with the portable plate of comb plate, described rotor plate 4, damping piece 3, bolt 1 can rotate by opposing platen 2, damping piece 3 is elastic body.
The utility model is not only confined to above-described embodiment.
Claims (1)
1. a Novel comb tooth plate stretching device anchor bolt, it is characterized in that, comprise bolt, pressing plate, damping piece, rotor plate, steel bushing and shrouding, described steel bushing upper end open, the lower end of steel bushing is fixed on shrouding, the inwall of steel bushing is provided with the internal thread matched with the external screw thread on pressing plate, steel bushing inside is provided with rotor plate from the bottom up according to this, damping piece, pressing plate, described bolt bottom is positioned at steel bushing, bolt is from the bottom up successively through rotor plate, damping piece, pressing plate, the upper end of bolt is stretched out outside steel bushing and is connected with the portable plate of comb plate, described rotor plate, damping piece, bolt can rotate by opposing platen, damping piece is elastic body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420770431.1U CN204530456U (en) | 2014-11-29 | 2014-11-29 | A kind of Novel comb tooth plate stretching device anchor bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420770431.1U CN204530456U (en) | 2014-11-29 | 2014-11-29 | A kind of Novel comb tooth plate stretching device anchor bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204530456U true CN204530456U (en) | 2015-08-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420770431.1U Active CN204530456U (en) | 2014-11-29 | 2014-11-29 | A kind of Novel comb tooth plate stretching device anchor bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204530456U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862583A (en) * | 2016-04-21 | 2016-08-17 | 衡水鑫盛达新材料科技有限公司 | Non-dismantling replaceable comb plate telescopic device |
| CN108149568A (en) * | 2018-01-31 | 2018-06-12 | 单国珠 | The board-like bridge extension joint of life-cycle non-bolt multi-directional deflection broach and method |
-
2014
- 2014-11-29 CN CN201420770431.1U patent/CN204530456U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862583A (en) * | 2016-04-21 | 2016-08-17 | 衡水鑫盛达新材料科技有限公司 | Non-dismantling replaceable comb plate telescopic device |
| CN108149568A (en) * | 2018-01-31 | 2018-06-12 | 单国珠 | The board-like bridge extension joint of life-cycle non-bolt multi-directional deflection broach and method |
| CN108149568B (en) * | 2018-01-31 | 2023-07-21 | 单国珠 | Full-service-life bolt-free multidirectional deflection comb plate type bridge expansion device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |