CN220977690U - Novel anti-shearing comb tooth expansion device - Google Patents
Novel anti-shearing comb tooth expansion device Download PDFInfo
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- CN220977690U CN220977690U CN202322770157.XU CN202322770157U CN220977690U CN 220977690 U CN220977690 U CN 220977690U CN 202322770157 U CN202322770157 U CN 202322770157U CN 220977690 U CN220977690 U CN 220977690U
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- plate
- comb
- expansion joint
- shearing
- guide sleeve
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- 238000010008 shearing Methods 0.000 title claims abstract description 40
- 244000126211 Hericium coralloides Species 0.000 title claims abstract description 20
- 238000004873 anchoring Methods 0.000 claims abstract description 16
- 238000013016 damping Methods 0.000 claims abstract description 15
- 230000009467 reduction Effects 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000010030 laminating Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000003139 buffering effect Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000005452 bending Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 210000003781 tooth socket Anatomy 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
- Road Paving Structures (AREA)
Abstract
The utility model belongs to the technical field of expansion joints, and particularly relates to a novel shearing-resistant comb tooth expansion device. The device comprises a first comb plate and a second comb plate which are connected through comb socket joints, wherein the bottoms of the first comb plate and the second comb plate are respectively arranged in mounting grooves at two sides of an expansion joint through an anchoring assembly, two sides of the expansion joint are respectively provided with a bearing plate which is attached to the end face of a concrete structure of the mounting groove, and a plurality of side-by-side shearing resistant structures are arranged between the bearing plates and consist of guide sleeves and sliding shafts; the novel shearing-resistant comb tooth expansion device achieves the effects of strong vertical shearing resistance and stable and regular comb tooth expansion, and has the characteristics of firm horizontal anchoring and positioning, vertical bearing shearing resistance and elastic damping buffering vibration reduction.
Description
Technical Field
The utility model belongs to the technical field of expansion joints, and particularly relates to a novel shearing-resistant comb tooth expansion device.
Background
In order to meet the requirement of bridge deck deformation, an expansion joint is usually arranged between two beam ends, between a beam end and a bridge abutment or at the hinge position of a bridge, and the expansion joint is required to be capable of freely expanding and contracting in the direction of the axis of the bridge, so that the bridge deck deformation is firm and reliable, and a vehicle is required to run smoothly without sudden jump and noise; it is necessary to prevent rainwater and dirt from penetrating into the block.
At present, an inverted T-shaped beam structure is common in the design of a highway bridge, and because the expansion amount is large, and expansion devices paved on a bridge deck are symmetrically distributed on two sides of a girder seam of a paving layer, the anchoring distance is long, the anchoring force is relatively weak, the existing expansion devices are connected by adopting a comb plate in a socket manner, the moving part of the comb plate in the expansion seam is suspended greatly, the lower part of the comb plate lacks force support, and the problems of deformation, dislocation, collapse and falling of the comb plate are caused in the movement process of a girder body; secondly, in the displacement process of the beam end, the vertical deflection amplitude of the telescopic device is increased (namely, the vertical shearing force is enhanced) due to the large telescopic quantity, the depth of the telescopic device in the mounting groove of the beam end is only the thickness of a paving layer, the vertical shearing resistance is difficult to play, the anchoring assembly is extremely easy to break and separate, the depth of the mounting groove of the traditional modular telescopic device cannot meet the requirement of anchoring force, the risk of shearing damage is large, and then the traditional comb plate is caused to seriously warp vertically when encountering the vertical deflection, the passing comfort of vehicles is seriously influenced, and the use safety and the service life of the expansion joint of the comb plate are reduced.
Disclosure of utility model
The utility model aims to provide a novel shearing-resistant comb tooth telescoping device with strong vertical shearing resistance and stable and regular comb tooth telescoping, which has the characteristics of firm horizontal anchoring and positioning, vertical bearing shearing resistance and elastic damping buffering vibration reduction.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
Novel anti-shearing comb tooth telescoping device is characterized in that: including first broach board, the second broach board that links to each other through broach socket joint, the mounting groove in expansion joint both sides is installed through the anchor subassembly respectively to the bottom of first broach board, second broach board, the expansion joint both sides are equipped with the bearing plate of laminating mounting groove concrete structure terminal surface respectively, install a plurality of shear structures side by side between the bearing plate, shear structure comprises guide sleeve and sliding shaft.
Additional technical characteristics of forming the novel shearing-resistant comb tooth telescopic device further comprise:
The guide sleeve is attached to the bottom surface of the first comb plate or the second comb plate, the lower part of the guide sleeve is connected with the embedded plate, and the end part of the embedded plate is connected with the bearing plate or the end part of the embedded plate is connected with the anchoring assembly in the mounting groove;
A buffer spring is arranged in the guide sleeve of the shearing structure, and two ends of the buffer spring are respectively connected with the bottom of the guide sleeve and the end part of the sliding shaft;
The shear structure comprises a damping component, wherein the damping component comprises symmetrically arranged U-shaped elastic strips, and two ends of each U-shaped elastic strip are respectively connected with the root of the guide sleeve and the root of the sliding shaft or respectively connected with bearing plates at two sides of the expansion joint;
The anchoring assembly comprises a vertical plate connected with the bottom of the first comb plate or the second comb plate, the side part of the vertical plate is connected with the bearing plate, a plurality of embedded bars laid along the trend of the expansion joint are arranged in the concrete structure of the mounting groove, the embedded bars are downwards connected with the expansion joint foundation through U-shaped steel bars, and the embedded bars are upwards connected with the vertical plate through U-shaped steel bars;
The end face of the mounting groove is provided with a strip steel paved along the trend of the expansion joint, the strip steel is arranged below the bearing plate, and the strip steel positioned at two sides of the expansion joint is respectively clamped and pressed with the side edges of the water stop belt or the flexible noise reduction plate.
Compared with the prior art, the novel shearing-resistant comb tooth telescoping device provided by the utility model has the following advantages: the device is provided with a plurality of shearing resistant structures which are arranged in parallel below the expansion joint comb plate and used for improving the vertical support of the comb plate, in particular, the shearing resistant structures are composed of guide sleeves and sliding shafts, namely the guide sleeves and the sliding shafts are respectively connected with the end faces of mounting grooves on two sides of the expansion joint, so that the functions of guiding and vertical support of expansion joint are achieved, the vertical shearing resistant performance of the expansion joint comb plate is improved, warping and dislocation of comb teeth are prevented when a beam body is lifted and displaced, and the expansion safety is enhanced; secondly, set up the bearing plate at the mounting groove concrete structure terminal surface of expansion joint both sides, guide sleeve and sliding shaft are connected with the bearing plate of both sides respectively, have played anchor reinforcement effect, are particularly useful for the beam body structure that the flexible volume is big, have improved the anchor intensity of broach board, and bending resistance, shearing resistance are difficult for taking place the motion dislocation, drop problem more, and overall structure is simple compact, performance is stable, safe economical and durable.
Drawings
FIG. 1 is a schematic diagram of a novel anti-shearing comb telescoping device according to the present utility model;
Fig. 2 is a top view of a shear structure of the device including a damping assembly.
Detailed Description
The structure and operation of the novel anti-shearing comb telescoping device provided by the present utility model will be further described in detail below with reference to the accompanying drawings, wherein the described embodiments are only some, but not all, embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, unless otherwise indicated, the orientation or positional relationship indicated in the terms is based on the orientation or positional relationship shown in the drawings for convenience of description and simplification of the description only, and is not indicative or implying that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
It should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, the structure of the novel shearing resistant comb tooth expansion device comprises a first comb tooth plate 11 and a second comb tooth plate 12 which are connected through comb tooth socket joint, wherein bottoms of the first comb tooth plate 11 and the second comb tooth plate 12 are respectively installed in installation grooves 41 on two sides of an expansion joint through anchor assemblies, two sides of the expansion joint are respectively provided with bearing plates (5 and 5 ') attached to the end faces of a concrete structure 42 of the installation groove 41, a plurality of side-by-side shearing resistant structures are installed between the bearing plates (5 and 5'), and each shearing resistant structure is composed of a guide sleeve 61 and a sliding shaft 62.
The working principle is as follows: the device improves on traditional broach formula expansion joint's basis, the below at first broach board 11 that constitutes the telescoping device, second broach board 12 installs a plurality of shear structure side by side, shear structure comprises guide sleeve 61 and sliding shaft 62, the mounting groove 41 of expansion joint both sides has been connected respectively to the two, the concertina movement guiding effect has been played, prevent the broach dislocation, simultaneously, mounting groove 41 concrete structure 42 terminal surface sets up bearing plate (5, 5') for connect guide sleeve 61 or sliding shaft 62, the comb plate below is arranged in to the two, play vertical supporting effect, improve anti shearing performance, prevent broach warpage, bearing plate 5 is connected with mounting groove 41 concrete structure 42 or is connected with its inside anchor subassembly, the anchor intensity of broach board has been strengthened, it is more bending-resistant, shearing-resistant.
It should be noted that, the socket-joint comb teeth of the comb plate can be located in the expansion joint, or the comb plate can be divided into a fixed plate and a moving plate according to the traditional comb-tooth type expansion device, the moving plate spans the expansion joint, and the comb teeth of the moving plate are socket-jointed with the comb teeth of the fixed plate in the plane of the other beam end;
The guide sleeves 61 and the sliding shafts 62 are horizontally arranged below the comb plate, the guide sleeves 61 connected with the bearing plate 5 on one side of the first comb plate 11 are distributed at intervals, the sliding shafts 62 connected with the bearing plate 5' on one side of the second comb plate 12 are distributed at intervals, and the staggered distribution ensures balanced stress and balanced anchoring strength.
In the structure for forming the novel shearing resistant comb tooth expansion device,
Further, the guide sleeve 61 is attached to the bottom surface of the first comb plate 11 or the second comb plate 12, and is welded and fixed, the lower part of the guide sleeve 61 is connected with the embedded plate 60, the end part of the embedded plate 60 is connected with the bearing plates (5, 5 '), the embedded plate 6 is a triangular plate, two right-angle sides of the embedded plate are respectively connected with the bearing plates (5, 5') and the bottom of the comb plate, so as to play roles of triangular positioning, limiting and reinforcing, and the end part of the embedded plate 60 can also be connected with an anchoring assembly in the mounting groove 41 so as to play roles of anchoring and reinforcing, enhance the stability of the comb plate and improve the passing comfort of vehicles;
Preferably, a buffer spring 71 is arranged in the guide sleeve 61 of the shearing structure, two ends of the buffer spring 71 are respectively connected with the bottom of the guide sleeve 61 and the end part of the sliding shaft 62, and the buffer spring 71 is repeatedly compressed and elongated through the telescopic movement of the sliding shaft 62 in the guide sleeve 61, so that the damping vibration attenuation effect is achieved, the overlarge telescopic amplitude of comb teeth is avoided, the stability of the movement of the device is improved, and the service life of parts is prolonged;
As shown in fig. 2, as a preferred embodiment, the shearing resistant structure further comprises a damping component, the damping component comprises symmetrically arranged U-shaped elastic strips (72, 72 '), the U-shaped elastic strips (72, 72') are made of SUS301 or 304 stainless steel materials, two ends of the U-shaped elastic strips (72, 72 ') are respectively connected with the root of the guide sleeve 61 and the root of the sliding shaft 62, namely, the U-shaped elastic strips (72, 72') are arranged on two sides of the guide sleeve 61 and the sliding shaft 62 in a horizontal symmetrical mode, damping effect is achieved on telescopic movement, meanwhile, movement deflection of the two parts is prevented, and when a beam end is subjected to multidirectional displacement, limiting and resetting effects are achieved, and two ends of the U-shaped elastic strips (72, 72 ') can be respectively connected with bearing plates (5, 5') on two sides of an expansion joint;
It should be noted that, the design of the embedded plate 60 also considers the damping requirement of the telescopic device, that is, a damping layer, such as EVA foam, may be disposed between the embedded plate 60 and the guide sleeve 61 or between the embedded plate 60 and the U-shaped elastic strips (72, 72') of the damping assembly, so as to achieve the purposes of damping and dust prevention by multi-point lifting and positioning of the embedded plate 60;
Further, the anchoring assembly comprises a vertical plate 31 connected with the bottom of the first comb plate 11 or the second comb plate 12, the side part of the vertical plate 31 is connected with the bearing plates (5, 5'), a plurality of embedded bars 32 paved along the trend of the expansion joint are arranged in the concrete structure 42 of the mounting groove 41, the embedded bars 32 are downwards connected with the expansion joint foundation through U-shaped bars 33, the embedded bars 32 are upwards connected with the vertical plate 31 through U-shaped bars 34, namely the anchoring assembly embedded in the concrete of the mounting groove 41 is of a composite structure, the side edge of the vertical plate 31 is connected with the surface of the bearing plate to form three-dimensional stress, the embedded bars 32 in the concrete structure 42 are respectively welded in a wrapping mode through U-shaped bent bars (33, 34) to form an anchor in the upper direction and the lower direction, the structure is firmly connected, the stress is dispersed and balanced, and the anchoring positioning is stable;
Preferably, the end face of the mounting groove 41 is provided with a steel bar 81 (angle iron) laid along the trend of the expansion joint, the steel bar 81 is arranged below the bearing plates (5, 5 '), the steel bars 81 positioned at two sides of the expansion joint respectively clamp the side edges of the water stop belt and/or the flexible noise reduction plate 82, namely, the water stop belt and/or the flexible noise reduction plate 82 are arranged below the comb plate and the shearing resistant structure through the steel bars below the bearing plates (5, 5'), so that the functions of water resistance, water drainage, vibration reduction and noise reduction are achieved, and the comprehensive practical performance of the expansion device is enhanced.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limited to the implementation conditions of the present utility model, so that other modifications of the technical solution of the present utility model, or the equivalent of the structural dimensions and internal structures, should be included in the scope of the claims of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.
Claims (6)
1. Novel anti-shearing comb tooth telescoping device is characterized in that: including first broach board, the second broach board that links to each other through broach socket joint, the mounting groove in expansion joint both sides is installed through the anchor subassembly respectively to the bottom of first broach board, second broach board, the expansion joint both sides are equipped with the bearing plate of laminating mounting groove concrete structure terminal surface respectively, install a plurality of shear structures side by side between the bearing plate, shear structure comprises guide sleeve and sliding shaft.
2. The novel shearing resistant comb telescoping device according to claim 1, wherein: the guide sleeve is attached to the bottom surface of the first comb plate or the second comb plate, the lower portion of the guide sleeve is connected with the embedded plate, and the end portion of the embedded plate is connected with the bearing plate or the end portion of the embedded plate is connected with the anchoring assembly in the mounting groove.
3. The novel shearing resistant comb telescoping device according to claim 1, wherein: and a buffer spring is arranged in the guide sleeve of the shearing structure, and two ends of the buffer spring are respectively connected with the bottom of the guide sleeve and the end part of the sliding shaft.
4. The novel shearing resistant comb telescoping device according to claim 1, wherein: the shear structure comprises a damping component, wherein the damping component comprises symmetrically arranged U-shaped elastic strips, two ends of each U-shaped elastic strip are respectively connected with the root of the guide sleeve and the root of the sliding shaft, or two ends of each U-shaped elastic strip are respectively connected with bearing plates on two sides of the expansion joint.
5. The novel shearing resistant comb telescoping device according to claim 1, wherein: the anchor assembly comprises a vertical plate connected with the bottom of the first comb plate or the second comb plate, the side part of the vertical plate is connected with the bearing plate, a plurality of embedded bars paved along the trend of the expansion joint are arranged in the mounting groove concrete structure, the embedded bars are downwards connected with the expansion joint foundation through U-shaped steel bars, and the embedded bars are upwards connected with the vertical plate through U-shaped steel bars.
6. The novel shearing resistant comb telescoping device according to claim 1, wherein: the mounting groove terminal surface has the bar that lays along the expansion joint trend, the bar is arranged in the bearing plate below, and the bar that is located the expansion joint both sides is the side of the flexible noise reduction board of card pressure waterstop respectively.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321761797 | 2023-07-06 | ||
| CN2023217617978 | 2023-07-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220977690U true CN220977690U (en) | 2024-05-17 |
Family
ID=91063452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322770157.XU Active CN220977690U (en) | 2023-07-06 | 2023-10-16 | Novel anti-shearing comb tooth expansion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220977690U (en) |
-
2023
- 2023-10-16 CN CN202322770157.XU patent/CN220977690U/en active Active
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