CN205171355U - Multidirectional shift comb type bridge telescoping device - Google Patents
Multidirectional shift comb type bridge telescoping device Download PDFInfo
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- CN205171355U CN205171355U CN201520997526.1U CN201520997526U CN205171355U CN 205171355 U CN205171355 U CN 205171355U CN 201520997526 U CN201520997526 U CN 201520997526U CN 205171355 U CN205171355 U CN 205171355U
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- tooth plate
- moving block
- rotation slot
- large tooth
- type bridge
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Abstract
The utility model discloses a multidirectional shift comb type bridge telescoping device, including fixing slide, the little pinion rack on the expansion joint curb girder body jointly to and base, the big pinion rack of setting on another curb girder body of expansion joint, the base with connect through position changing mechanism between the big pinion rack, the base with still be connected with elastic element vertical, that be in tensile state between the big pinion rack. An object of the utility model is to provide a multidirectional shift comb type bridge telescoping device solves current bridge telescoping device and is difficult to adapt to the problem that the difference in height change appears in expansion joint both sides beam -ends, realizes the multidirectional purpose that shifts of carrying on of bridge telescoping device flexibility.
Description
Technical field
The utility model relates to bridge extension joint field, specifically relates to a kind of multi-directional deflection comb-type bridge extension joint.
Background technology
Bridge extension joint refers to the requirement for meeting bridge floor distortion, the stretching device usually arranged between two beam-ends, between beam-ends and abutment or in the articulated position of bridge.Along with the development that China's road traffic is built, bridge engineering in the road proportion improves constantly, and bridge extension joint, as the main Accessory Members of bridge, is one of key constructs that guarantee bridge operation safety and bridge are unimpeded.Conventional, following requirement should be had for bridge extension joint: parallel, perpendicular to the both direction of bridge axes, all can free-extension, solid and reliable, when vehicle runs over should smooth-going, without kick and noise; Want to prevent rain drop erosion, can prevent rubbish, earth etc. from infiltrating device inside and cause obstruction; Installation, inspection, maintenance, elimination dirt all want simple and convenient; Arranging shrinkage joint place, railing and deck paving all will disconnect.
Existing combed plate bridge extension joint as the important component part of bridge member, main structure be intermesh occlusion a pair castellated plates, make the ditch do not run through at direction across bridge, vehicle by time there will not be jumping car, more steadily.But, same structure, when the beam-ends of both sides, shrinkage joint is because of longitudinal gradient flexible generation level height difference change, the castellated plates structures shape of this routine it be difficult to adapt to this change, the difference in height of shrinkage joint two end carriage body can be amplified on the contrary, road surface is made to produce the larger discrepancy in elevation, more not steady when vehicle passes through.
In addition, in order to improve compliance when combed plate bridge extension joint occurs difference in height to shrinkage joint two end carriage body, rotary type displacement combed stretching device is proposed in prior art, its rotation slot and large tooth plate can rotate in a groove, but in actual applications, be build full concrete below the castellated plates of this rotary type displacement combed stretching device, large tooth plate and concrete surface directly carry out face and contact, large tooth plate receives fixed constraint, is difficult to rotate flexibly.If do not build full concrete below large tooth plate, but reserve the space of rotation, then load during car can be made all to concentrate on the rotation slot of large tooth plate tail end, its structure is easy to produce fatigue failure, thus causes stretching device fatigue failure.
Utility model content
The purpose of this utility model is to provide a kind of multi-directional deflection comb-type bridge extension joint, solve existing bridge extension joint to be difficult to adapt to both sides, shrinkage joint beam-ends and to occur the problem that difference in height changes, realize the object that bridge extension joint carries out multi-directional deflection flexibly.
The utility model is achieved through the following technical solutions:
A kind of multi-directional deflection comb-type bridge extension joint, comprise for being fixed on the slide plate on the curb girder body of shrinkage joint one, little tooth plate, also comprise for being fixed on the base on another curb girder body of shrinkage joint, large tooth plate, be connected by modified gear between described base with described large tooth plate, between described base and described large tooth plate, be also connected with the flexible member being in extended state.Large tooth plate in a kind of multi-directional deflection of the utility model comb-type bridge extension joint is across shrinkage joint, its two ends lay respectively at the Liang Tishang of both sides, shrinkage joint, described little tooth plate is pressed on slide plate, and one end of little tooth plate and slide plate is fixed on the Liang Tishang of side, shrinkage joint jointly, large tooth plate is arranged at the opposite side at shrinkage joint, the increment of described large tooth plate is also positioned on described slide plate, namely little tooth plate and large tooth plate the enterprising line slip of described slide plate with engage.Be difficult to adapt to both sides, shrinkage joint beam-ends for existing bridge extension joint and occur the problem that difference in height changes, the utility model is connected with flexible member that is vertical, that be in extended state between base and large tooth plate, because described base is fixed, so flexible member can be continuously applied downward pulling force to large tooth plate, large tooth plate is made to be close to sled surface.When the beam body of both sides, shrinkage joint produces difference in height, because little tooth plate is fixed on the Liang Tishang of side, and big and small toothed plate intermeshes, so large tooth plate can produce the trend of relative displacement or relative displacement, now under the downward resilient force of flexible member being in extended state, large tooth plate moves down, or produce downward movement tendency, thus large tooth plate is adjacent to all the time in sled surface, the impact that the level height difference realizing eliminating both sides, shrinkage joint beam-ends is brought, will be large, gentle slope changed into by the step between little tooth plate with difference in height, realize the deflection function on the utility model vertical direction, guarantee that bridge floor remains level and smooth.
Further, the moving block that described modified gear comprises rotation slot, block rubber and matches with described rotation slot, described rotation slot is fixed on described susceptor surface, described moving block is positioned at inside described rotation slot, described moving block is fixedly connected with described large tooth plate, and described block rubber is arranged between described moving block and described rotation slot.The inner surface of described moving block and described rotation slot matches, when the beam-ends of both sides, shrinkage joint produces discrepancy in elevation change, same, little tooth plate is relatively fixing, large tooth plate is subject to the vertical extruding from engagement place, relative deflection is there is with beam body, the moving block be fixedly connected with is driven to rotate in described rotation slot, because block rubber is when three-dimensional pressure-bearing, the liquid with viscosity can be regarded as, there is good deformability, large tooth plate is enable to adapt to vertical rotation when supporting capacity is constant, the negative effect that the difference in height produced with the beam-ends eliminating both sides, shrinkage joint is brought, guarantee large, the good engagement of little tooth plate, guarantee that bridge floor is smooth.
Further, described modified gear also comprises tension bolt, and described tension bolt lower end is fixed on described base, and described tension bolt connects described rotation slot, block rubber, moving block from the bottom up successively.When the beam-ends of both sides, shrinkage joint produces level height difference, described moving block produces the trend moved up under the drive of large tooth plate, bindiny mechanism between the block rubber of described moving block and its underpart, rotation slot can be subject to very large pulling force straight up, so preferably this bindiny mechanism is tension bolt, to reduce the possibility of fatigue fracture, improve the supporting capacity becoming mechanism, improve the application life of device.
Further, described slide plate is ganoid corrosion resistant plate.Described little tooth plate, large tooth plate engage on slide plate, and described slide plate is by the erosion of rainwater, so select corrosion resistant plate to prevent its corrosion, guarantees smooth surface simultaneously, is convenient to the engagement of tooth plate.
Further, sealing ring is provided with between the top of described rotation slot and described moving block.Avoid rainwater, dust or other foreign material to enter described rotation slot inner, affect the flexible rotating of moving block.
Further, described moving block and described large tooth plate are bolted to connection.When being bolted moving block and large tooth plate, when the beam-ends of both sides, shrinkage joint produces level height difference, avoiding described moving block to misplace with described large tooth plate by bolt and be separated.
To sum up, the utility model has following beneficial effect:
The utility model connects base and large tooth plate by flexible member that is vertical, that be in extended state, all the time large tooth plate applying pulling force is straight down given by elastic force, thus the step making the level height difference of both sides, shrinkage joint beam-ends produce between large and small tooth plate becomes gentle slope, realizes the deflection function on vertical direction; And by tension bolt connection of rotating block, base and the rotation slot between moving block and base, block rubber, to improve the supporting capacity of modified gear, improve the application life of device; In addition, in the utility model, the rotation of moving block completes in rotation slot, flexible member is provided with in rotation slot, beam body is delivered to again after the carrying of large tooth plate is all cushioned by flexible member, compared with prior art, significantly reduce shock loading, improve the life-span of equipment, the flexible realization of multi-directional deflection function can be guaranteed simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model installment state;
Fig. 2 is the structure for amplifying schematic diagram of the utility model modified gear.
Numbering in figure is followed successively by: the little tooth plate of 1-, the large tooth plate of 2-, 3-slide plate, 4-shrinkage joint, 5-base, 6-flexible member, 7-tension bolt, 8-moving block, 9-rotation slot, 10-block rubber, 11-sealing ring.
Detailed description of the invention
Clearly understand for making the purpose of this utility model, technical scheme and advantage, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only for explaining the utility model, and conduct is not to restriction of the present utility model.
Embodiment 1:
A kind of multi-directional deflection comb-type bridge extension joint as shown in Figures 1 and 2, comprise the slide plate 3, the little tooth plate 1 that are jointly fixed on the curb girder body of shrinkage joint 4 one, and be arranged on the base 5 on another curb girder body of shrinkage joint 4, large tooth plate 2, be connected by modified gear between described base 5 with described large tooth plate 2, between described base 5 and described large tooth plate 2, be also connected with flexible member 6 that is vertical, that be in extended state; Described slide plate 3 is ganoid corrosion resistant plate.In the present embodiment, described little tooth plate 1 is pressed on slide plate 3, and little tooth plate 1 and one end of slide plate 3 are fixed on the Liang Tishang of side, shrinkage joint 4 jointly, large tooth plate 2 is arranged at the opposite side at shrinkage joint 4, the increment of described large tooth plate 2 is also positioned on described slide plate 3, namely little tooth plate 1 and large tooth plate 2 the enterprising line slip of described slide plate 3 with engage.Be difficult to adapt to both sides, shrinkage joint beam-ends for existing bridge extension joint and occur the problem that difference in height changes, the utility model is connected with flexible member 6 that is vertical, that be in extended state between base 5 and large tooth plate 2, because base 5 is fixed, so flexible member 6 can be continuously applied downward pulling force to large tooth plate 2, large tooth plate 2 is made to be close to slide plate 3 surface.When the beam body of both sides, shrinkage joint 4 produces difference in height, because little tooth plate 1 is fixed on the Liang Tishang of side, and big and small toothed plate intermeshes, so large tooth plate 2 can produce the trend of relative displacement or relative displacement, now under the downward resilient force of flexible member 6 being in extended state, large tooth plate 2 moves down, or produce downward movement tendency, thus make large tooth plate 2 be adjacent on slide plate 3 surface all the time, realize the level height difference change eliminating both sides, shrinkage joint 4 beam-ends, realize the deflection function on the utility model vertical direction, bridge floor is made to remain smooth.
Embodiment 2:
A kind of multi-directional deflection comb-type bridge extension joint as shown in Figures 1 and 2, on the basis of embodiment 1, the moving block 8 that described modified gear comprises rotation slot 9, block rubber 10 and matches with described rotation slot 9, described rotation slot 9 is fixed on described base 5 surface, described moving block 8 is positioned at inside described rotation slot 9, described moving block 8 is fixedly connected with described large tooth plate 2, and described block rubber 10 is arranged between described moving block 8 and described rotation slot 9; Described modified gear also comprises tension bolt 7, and described tension bolt 7 lower end is fixed on described base 5, and described tension bolt 7 connects described rotation slot 9, block rubber 10, moving block 8 from the bottom up successively.Sealing ring 11 is provided with between the top of described rotation slot 9 and described moving block 8; Described moving block 8 is bolted to connection with described large tooth plate 2.Described moving block 8 matches with the inner surface of described rotation slot 9, when the beam-ends of both sides, shrinkage joint 4 produces discrepancy in elevation change, same, little tooth plate 1 is relatively fixing, large tooth plate 2 is subject to the vertical extruding from engagement place, relative deflection is there is with beam body, the moving block 8 be fixedly connected with is driven to rotate in described rotation slot, because block rubber 10 is when three-dimensional pressure-bearing, the liquid with viscosity can be regarded as, there is good deformability, make large tooth plate 2 can adapt to vertical rotation when supporting capacity is constant, the negative effect that the difference in height produced with the beam-ends eliminating both sides, shrinkage joint 4 is brought, guarantee large tooth plate 2, the good engagement of little tooth plate 1, guarantee that bridge floor is smooth.In addition, when the beam-ends of both sides, shrinkage joint 4 produces level height difference, described moving block 8 produces the trend moved up under the drive of large tooth plate 2, bindiny mechanism between the block rubber 10 of described moving block 8 and its underpart, rotation slot 9 can be subject to very large pulling force straight up, so preferably this bindiny mechanism is tension bolt 7, to reduce the possibility of fatigue fracture, improve the supporting capacity becoming mechanism, improve the application life of device.
Above-described detailed description of the invention; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only detailed description of the invention of the present utility model; and be not used in restriction protection domain of the present utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. a multi-directional deflection comb-type bridge extension joint, comprise slide plate (3), the little tooth plate (1) for being fixed on the curb girder body of shrinkage joint (4), also comprise for being fixed on the base (5) on another curb girder body of shrinkage joint (4), large tooth plate (2), be connected by modified gear between described base (5) with described large tooth plate (2), it is characterized in that: between described base (5) and described large tooth plate (2), be also connected with the flexible member (6) being in extended state.
2. a kind of multi-directional deflection comb-type bridge extension joint according to claim 1, it is characterized in that: the moving block (8) that described modified gear comprises rotation slot (9), block rubber (10) and matches with described rotation slot (9), described rotation slot (9) is fixed on described base (5) surface, described moving block (8) is positioned at described rotation slot (9) the inside, described moving block (8) is fixedly connected with described large tooth plate (2), and described block rubber (10) is arranged between described moving block (8) and described rotation slot (9).
3. a kind of multi-directional deflection comb-type bridge extension joint according to claim 2, it is characterized in that: described modified gear also comprises tension bolt (7), described tension bolt (7) lower end is fixed on described base (5), and described tension bolt (7) connects described rotation slot (9), block rubber (10), moving block (8) from the bottom up successively.
4. a kind of multi-directional deflection comb-type bridge extension joint according to any one of claim 1 to 3, is characterized in that: described slide plate (3) is ganoid corrosion resistant plate.
5. a kind of multi-directional deflection comb-type bridge extension joint according to Claims 2 or 3, is characterized in that: be provided with sealing ring (11) between the top of described rotation slot (9) and described moving block (8).
6. a kind of multi-directional deflection comb-type bridge extension joint according to any one of Claims 2 or 3, is characterized in that: described moving block (8) and described large tooth plate (2) are bolted to connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520997526.1U CN205171355U (en) | 2015-12-07 | 2015-12-07 | Multidirectional shift comb type bridge telescoping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520997526.1U CN205171355U (en) | 2015-12-07 | 2015-12-07 | Multidirectional shift comb type bridge telescoping device |
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| Publication Number | Publication Date |
|---|---|
| CN205171355U true CN205171355U (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520997526.1U Active CN205171355U (en) | 2015-12-07 | 2015-12-07 | Multidirectional shift comb type bridge telescoping device |
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| CN (1) | CN205171355U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087727A (en) * | 2016-08-08 | 2016-11-09 | 武汉耐久伸缩工程有限公司 | A kind of prepressing type Multidirectional displacement bridge expansion device |
| CN107178031A (en) * | 2017-04-07 | 2017-09-19 | 刘祖江 | A kind of unit assembled prestressing force Multidirectional displacement bridge expansion device and installation method |
| CN111794094A (en) * | 2020-08-17 | 2020-10-20 | 中设设计集团股份有限公司 | Multidirectional damping toothed plate expansion joint that shifts |
| CN111809515A (en) * | 2020-08-11 | 2020-10-23 | 成都市长大路桥科技有限公司 | Comb tooth type telescoping device |
-
2015
- 2015-12-07 CN CN201520997526.1U patent/CN205171355U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087727A (en) * | 2016-08-08 | 2016-11-09 | 武汉耐久伸缩工程有限公司 | A kind of prepressing type Multidirectional displacement bridge expansion device |
| CN107178031A (en) * | 2017-04-07 | 2017-09-19 | 刘祖江 | A kind of unit assembled prestressing force Multidirectional displacement bridge expansion device and installation method |
| CN111809515A (en) * | 2020-08-11 | 2020-10-23 | 成都市长大路桥科技有限公司 | Comb tooth type telescoping device |
| CN111794094A (en) * | 2020-08-17 | 2020-10-20 | 中设设计集团股份有限公司 | Multidirectional damping toothed plate expansion joint that shifts |
| CN111794094B (en) * | 2020-08-17 | 2024-06-11 | 常熟市宝德桥梁构件有限公司 | Multidirectional deflection damping toothed plate expansion joint |
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