CN201678943U - Comb-type expansion joint device with keys - Google Patents
Comb-type expansion joint device with keys Download PDFInfo
- Publication number
- CN201678943U CN201678943U CN2010202094123U CN201020209412U CN201678943U CN 201678943 U CN201678943 U CN 201678943U CN 2010202094123 U CN2010202094123 U CN 2010202094123U CN 201020209412 U CN201020209412 U CN 201020209412U CN 201678943 U CN201678943 U CN 201678943U
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- China
- Prior art keywords
- comb
- plate
- keys
- electrode structure
- interdigitated electrode
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- Expired - Fee Related
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to a comb-type expansion joint device with keys used for adapting to the extension caused by the change of bridge temperature. The utility model comprises a pre-embedded part comprising a fixed part constituted by a locating plate, a nut and an anchor bar, which are pre-embedded in the roadbed, and a assembled part comprising a replaceable part constituted by a comb-type steel plate, keys and a bolt. The positioning plate and the comb-type steel plate are provided with keyways, and the force applied on the comb-type steel plate can be transmitted to the positioning plate through keys between the key ways, so that the force on the bolt can be reduced and the costs for changing the keys can be also lowered.
Description
Technical field
The utility model relates to the stretching device that adopts in a kind of highway construction, especially with the interdigitated electrode structure expansion gap device of key.It is caused flexible to be used to adapt to the bridge variations in temperature, makes bridge floor smooth, guarantees that travelling is good.
Background technology
At present, the highway transportation of China is just towards high speed, heavily loaded, durable, the comfortable and modernized easily transportation development of maintenance, and the interdigitated electrode structure expansion gap device just can adapt to the requirement of this development.Interdigitated electrode structure shrinkage joint surface layer plate is the comb teeth shape checkered plates, from about stretch out the intermeshing supporting type of bridge deck gap location structure, the rigidity of structure is bigger, can bear bigger horizontal displacement.But because powerful mechanical wear and collision, the high strength anchor bolt of interdigitated electrode structure expansion gap device is easier to damage, and has increased frequency of maintenance and cost." bridge interdigitated electrode structure stretching device " Chinese patent application number: 200720082756.0.Be to be connected with the polylith anchor plate respectively, be connected with anchor bar above the every anchor plate at comb template and comb template bottom surface.It is simple in structure, but maintenance is inconvenient.
Summary of the invention
In order further to improve the interdigitated electrode structure expansion gap device, the utility model, a kind of interdigitated electrode structure expansion gap device with key is provided, main purpose is by bearing the various power that interdigitated electrode structure shrinkage joint surface layer plate is subjected to key, if this advocate with the vehicular traffic direction of advance to anti-, equal-sized alternation formula shear stress.Purpose is to reach the force structure of strengthening the interdigitated electrode structure expansion gap device, and what reduce that the high strength anchor bolt is subjected to subtracts shear force, wearing and tearing and collision, reduces frequency of maintenance and cost.
The technical scheme that its technical problem that solves the utility model adopts is: the interdigitated electrode structure expansion gap device of band key mainly is made up of two parts.One, pre-buried part: by the fixed part that location-plate, nut and dowel are formed, they are embedded in the roadbed.Its two, assembled part: be by the comb shaped steel plate, the field-replaceable unit of key and bolt composition.Location-plate all is processed with keyway with comb on the shaped steel plate, the power that is subjected on the comb shaped steel plate is delivered to location-plate, is to transmit by the key between the keyway, has so just reduced stressed on the bolt greatly, and the cost of changing key on the other hand also hangs down a bit relatively.The effect of dowel be allow pre-buried part more firm catch roadbed, nut be with the below weldering of location-plate for one, if the material of location-plate is enough good, can be without directly tapping on location-plate of nut.
The beneficial effects of the utility model are, have strengthened the force structure of interdigitated electrode structure expansion gap device, can reduce the bolt of half, and the high-strength fixing bolt of retouching can replace with plain bolt, and frequency of maintenance and cost also can reduce.
Description of drawings further specifies the utility model below in conjunction with drawings and Examples.
Fig. 1 is the decomposing schematic representation of the interdigitated electrode structure expansion gap device of the utility model band key.
Fig. 2 is the assembling schematic diagram of the interdigitated electrode structure expansion gap device of the utility model band key.
1. comb shaped steel plate, 2. bolt, 3. keyway, 4. key, 5. location-plate, 6. nut, 7. dowels among the figure.
The specific embodiment: Fig. 1 is the decomposing schematic representation of the interdigitated electrode structure expansion gap device of band key, mainly is made up of two parts.One, pre-buried part: by the fixed part that location-plate (5), nut (6) and dowel (7) are formed, they are welded to be embedded in the roadbed together.Its two, assembled part: be by comb shaped steel plate (1), the field-replaceable unit that key (4) and bolt (2) are formed.All be processed with keyway (3) on location-plate among Fig. 1 (5) and the comb shaped steel plate (1), the power that is subjected on the comb shaped steel plate (1) is delivered to location-plate (5), be to transmit by the key (4) between the keyway (3), so reduced stressed on the bolt (2) greatly, the cost of changing key (4) on the other hand is a little also low relatively.The effect of dowel (7) be allow pre-buried part more firm catch roadbed.Nut (6) be with the weldering of the below of location-plate (5) for one, if the material of location-plate (5) is enough good, can not select for use nut (6) directly to go up tapping at location-plate (5).
Fig. 2 is the assembling schematic diagram of the interdigitated electrode structure expansion gap device of band key, can find out from figure two, and the power that is subjected on the comb shaped steel plate (1) is delivered on location-plate (5) and the dowel (7), and structure stress is strengthened.Simultaneously, comb shaped steel plate (1) has kept existing structure and size, can reduce the workload of improving structure like this.And reduce the high-strength bolt in half past, therefore the interdigitated electrode structure expansion gap device with key can reach the increase structural strength, reduces the purpose of frequency of maintenance and cost.
Claims (4)
- One kind be used to adapt to the bridge variations in temperature cause flexible, the band key the interdigitated electrode structure expansion gap device, it is characterized in that: the band key the interdigitated electrode structure expansion gap device have keyway and key.
- 2. the interdigitated electrode structure expansion gap device of band key according to claim 1 is characterized in that: be processed with keyway on the location-plate.
- 3. the interdigitated electrode structure expansion gap device of band key according to claim 1 is characterized in that: be processed with keyway on the comb shaped steel plate.
- 4. the interdigitated electrode structure expansion gap device of band key according to claim 1 is characterized in that: between the keyway of location-plate and comb shaped steel plate key is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202094123U CN201678943U (en) | 2010-05-31 | 2010-05-31 | Comb-type expansion joint device with keys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202094123U CN201678943U (en) | 2010-05-31 | 2010-05-31 | Comb-type expansion joint device with keys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201678943U true CN201678943U (en) | 2010-12-22 |
Family
ID=43343994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202094123U Expired - Fee Related CN201678943U (en) | 2010-05-31 | 2010-05-31 | Comb-type expansion joint device with keys |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201678943U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926322A (en) * | 2012-11-06 | 2013-02-13 | 济南城建集团有限公司 | Construction method, hoisting tool, location tire and location support for installing comb-tooth-shaped expansion joint |
| CN110258322A (en) * | 2019-07-19 | 2019-09-20 | 成都济通路桥科技有限公司 | A kind of processing method of fishback telescopic device |
-
2010
- 2010-05-31 CN CN2010202094123U patent/CN201678943U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926322A (en) * | 2012-11-06 | 2013-02-13 | 济南城建集团有限公司 | Construction method, hoisting tool, location tire and location support for installing comb-tooth-shaped expansion joint |
| CN110258322A (en) * | 2019-07-19 | 2019-09-20 | 成都济通路桥科技有限公司 | A kind of processing method of fishback telescopic device |
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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: 20101222 Termination date: 20110531 |