CN215714607U - Seam-crossing type damping multidirectional displacement bridge expansion device - Google Patents
Seam-crossing type damping multidirectional displacement bridge expansion device Download PDFInfo
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- CN215714607U CN215714607U CN202122429773.XU CN202122429773U CN215714607U CN 215714607 U CN215714607 U CN 215714607U CN 202122429773 U CN202122429773 U CN 202122429773U CN 215714607 U CN215714607 U CN 215714607U
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Abstract
The utility model discloses a seam-crossing type damping multidirectional displacement bridge expansion device which comprises a left comb plate, a right comb plate, a left anchoring plate, a right anchoring plate, a stainless steel plate and a damping support, wherein the left comb plate and the right comb plate are respectively arranged on bridge sections on two sides of a bridge expansion joint, and the left comb plate is arranged on the bridge expansion joint in a crossing manner; the left anchoring plate and the right anchoring plate are respectively vertically welded on the lower bottom surfaces of the outer ends of the left comb plate and the right comb plate, the left anchoring plate and the right anchoring plate are arranged along the length direction of the bridge, and the bottoms of the left anchoring plate and the right anchoring plate are welded on bridge reinforcing steel frameworks on two sides of the expansion joint; left side fishback and the inboard crisscross tooth portion below of right fishback set up corrosion resistant plate, set up shock mount under the corrosion resistant plate, and the shock mount bottom sets up on the bridge section and carries out elastic support to crisscross tooth portion. The seam-crossing type damping multidirectional displacement bridge expansion device is high in connection strength and good in damping effect, and can realize displacement in the height direction.
Description
Technical Field
The utility model relates to the technical field of bridge expansion joints, in particular to a seam-crossing type damping multidirectional displacement bridge expansion device.
Background
In order to meet the requirement of bridge deck deformation, expansion joints are usually provided between two beam ends, between a beam end and an abutment, or at the hinge joint of a bridge. The bridge expansion joints are capable of accommodating displacements and couplings between the superstructure caused by vehicle loads and bridge building materials. The bridge expansion joint can prevent rainwater and garbage soil from permeating and blocking; meanwhile, the installation, the inspection, the maintenance and the dirt elimination are all simple and convenient. At the position of the expansion joint, the handrail and the bridge deck pavement are disconnected. The expansion joint of bridge has a great variety, wherein, the comb tooth bridge expansion joint device that shifts has comparatively extensive application to the multidirection. The multidirectional comb tooth bridge expansion joint device that shifts has advantages such as structure height is low, application range is wide, the driving is steady, antiskid.
However, most of the existing multidirectional displacement comb tooth bridge expansion joint devices are installed by using bolts, under the severe working condition, the bolts are easy to loosen after a long time, the toothed plates are tilted and even fall off, the maintenance period is short, and potential safety hazards exist. If use the anchor board to weld the dress mode and connect the fishback, though improved joint strength, the axis of rotation at seam fishback is striden in unable installation, can't realize the displacement of direction of height promptly and shift.
Therefore, it is necessary to develop a seam-crossing type damping multidirectional displacement bridge expansion device.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a seam-crossing type damping multidirectional displacement bridge expansion device which is high in connection strength, good in damping effect and capable of achieving displacement in the height direction.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model discloses a seam-crossing type damping multidirectional displacement bridge expansion device, which comprises a left comb plate, a right comb plate, a left anchoring plate, a right anchoring plate, a stainless steel plate and a damping support, wherein the left comb plate and the right comb plate are respectively arranged on bridge sections on two sides of a bridge expansion joint, and the left comb plate is arranged on the bridge expansion joint in a crossing manner; the left anchoring plate and the right anchoring plate are respectively vertically welded on the lower bottom surfaces of the outer ends of the left comb plate and the right comb plate, the left anchoring plate and the right anchoring plate are arranged along the length direction of the bridge, and the bottoms of the left anchoring plate and the right anchoring plate are welded on bridge reinforcement frameworks on two sides of the expansion joint; left side fishback and the inboard crisscross tooth portion below setting of right fishback stainless steel plate, set up under the stainless steel plate shock mount, the shock mount bottom sets up on the bridge section and right crisscross tooth portion carries out elastic support.
Furthermore, the damping support comprises a damping block seat box and a damping block, the damping block is in a rectangular strip shape arranged along the width of the bridge, and the top of the damping block is in contact with the bottom surfaces of the staggered tooth parts; the damper block is disposed in the damper block housing.
Further, the shock absorption block comprises a rubber main body, a layer of steel plate and a sliding plate, a plurality of thin-sheet steel plates are compounded in the rubber main body at intervals in parallel, and the sliding plate is compounded on the top of the rubber main body and contacts with the top surface of the stainless steel plate.
Furthermore, the sliding plate is made of a polytetrafluoroethylene high-density plate.
Furthermore, an oil and grease storage groove is formed in the top surface of the sliding plate, and lubricating silicon grease is stored in the oil and grease storage groove.
The damping block seat box is characterized by further comprising a mounting bolt, the cross section of the damping block seat box is C-shaped, a flange plate is arranged at the top of a side plate of the damping block seat box, and a threaded hole is formed in the flange plate; the mounting bolts can penetrate through the staggered tooth parts from top to bottom to be in threaded connection with the threaded holes of the flange plate.
Further, a protruding bearing end is arranged at the lower part of the inner side of the right anchoring plate and protrudes out of the bridge expansion joint; the bottom of the shock absorption block seat box is welded to the top surface of the protruding bearing end.
The bridge expansion joint structure is characterized by further comprising a left vertical baffle, a right vertical baffle and an inner baffle, wherein the left vertical baffle is vertically connected to the inner side end face of the left anchoring plate, the right vertical baffle is vertically connected to the inner side end face of the extending bearing end, and the inner baffle is arranged on the top face of the extending bearing end and is located on one side, far away from the bridge expansion joint, of the damping block seat box.
Furthermore, the left anchoring plate and the right anchoring plate are provided with at least one lightening hole.
Compared with the prior art, the utility model has the beneficial technical effects that:
according to the seam-crossing type damping multidirectional displacement bridge expansion device, the comb plate is welded to the bridge steel bar framework by taking the left anchoring plate and the right anchoring plate as the middle structural members, so that the use of bolts as fixing parts is avoided, the comb tooth tilting fault caused by the loosening of nuts is avoided, the structural strength is increased, the connection strength is high, and the service life is prolonged; meanwhile, the whole body is welded on the steel reinforcement framework on site, concrete is poured after leveling, the construction period is short, and the installation efficiency is improved. Through install on the bridge section damping support bottom and right crisscross tooth portion carries out elastic support, can the micro-compression or expand at the bottom of the damping support guaranteed that the fishback stretches out the broach can make micro displacement in the direction of height and shift, simultaneously, reduced expansion joint device's rigidity, can play better shock attenuation effect. The seam-crossing type damping multidirectional displacement bridge expansion device is high in connection strength and good in damping effect, and can realize displacement in the height direction.
In addition, through the snubber block splendid attire in the snubber block seat box, install the location to the snubber block when being convenient for construct, improved construction operating efficiency. The damping block compounded by the rubber and the steel sheet has the advantages that the compression resistance is enhanced, the local large pressure can be resisted during heavy load, and the service life is prolonged. The sliding plate made of the polytetrafluoroethylene high-density plate can reduce the friction coefficient and wear and has small friction resistance when sliding relative to the stainless steel plate. Through set up at the slide top surface store up the grease recess, store up lubricated silicon grease in the grease recess, can form continuous oil film between slide and corrosion resistant plate, further reduce frictional resistance, can fall the noise moreover, avoid noise pollution. Through setting up the flange plate in the snubber block seat box curb plate outside, be convenient for through construction bolt temporary fixation, transportation and preparation work before the convenient construction need demolish construction bolt after the construction is accomplished. The construction efficiency can be improved, and the installation precision of the damping support is ensured. Welding through snubber block seat box bottom is on exploring the top surface that bears the weight of the end level setting, can accomplish the installation of snubber block seat box by the prefabrication of mill, and the snubber block seat box of welding mode installation simultaneously, joint strength is higher, can not take place the displacement in the work progress. Support the snubber block seat box through right anchor board part, bearing capacity is strong, avoids taking place the concrete position conquassation condition, has improved equipment life. Found the baffle through a left side and found the baffle on the right side and be located respectively bridge expansion joint top both sides can prevent falling the sediment protection to the expansion joint, avoids the slag charge to fall into the breakwater of below on the accumulation influence normally flexible. When avoiding pouring the concrete material through the setting of interior baffle, block dust slag charge, avoid influencing the glide plane between slide and the corrosion resistant plate. Through the setting of lightening hole, alleviateed anchor board weight, the formation hole is convenient for increase the anchor intensity of expansion joint component and concrete material simultaneously, when adopting the ligature silk to fix to the reinforcing bar in addition, the hole of ligature of stirrup also can be regarded as to the lightening hole, and the construction of being convenient for goes on smoothly.
Drawings
The utility model is further illustrated in the following description with reference to the drawings.
FIG. 1 is a schematic sectional view of a cross-slit type shock-absorbing multidirectional displacement bridge expansion device in an embodiment 1 of the present invention;
FIG. 2 is a schematic bottom view of the structure of example 1 of the present invention;
FIG. 3 is a schematic sectional view of a shock mount according to embodiment 1 of the present invention;
FIG. 4 is a schematic top view of the damper block housing according to embodiment 1 of the present invention;
fig. 5 is a schematic sectional view of a cross-slot type shock-absorbing multidirectional displacement bridge expansion device in an embodiment 2 of the utility model.
Description of reference numerals: 1. a left comb plate; 2. a right comb plate; 3. a left anchor plate; 4. a right anchor plate; 401. a bearing end is extended out; 5. a damping block seat box; 501. a flange plate; 6. a damper block; 601. a rubber body; 602. laminating steel plates; 603. a slide plate; 7. installing a bolt; 8. a left vertical baffle; 9. a stainless steel plate; 10. a steel reinforcement cage; 11. a right vertical baffle; 12. an inner baffle; 13. a water baffle.
Detailed Description
The core of the utility model is to provide a seam-crossing type damping multidirectional displacement bridge expansion device which has high connection strength and good damping effect and can realize displacement in the height direction.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to the attached drawings, fig. 1 is a schematic sectional structure view in front view of an embodiment 1 of a cross-slit type shock-absorbing multidirectional displacement bridge expansion device of the utility model; FIG. 2 is a schematic bottom view of the structure of example 1 of the present invention; FIG. 3 is a schematic sectional view showing a shock-absorbing assembly according to embodiment 1 of the present invention; FIG. 4 is a schematic top view of the damper block magazine base according to embodiment 1 of the present invention; fig. 5 is a schematic sectional view of a cross-slot type shock-absorbing multidirectional displacement bridge expansion device in an embodiment 2 of the utility model.
The comb plate is welded to the bridge steel bar framework 10 by taking the left anchoring plate 3 and the right anchoring plate 4 as intermediate structural members, so that the use of bolts as fixing parts is avoided, the comb tooth tilting fault caused by the loosening of nuts is avoided, the structural strength is increased, the connection strength is high, and the service life is prolonged; meanwhile, the whole body is welded on the steel reinforcement framework on site, concrete is poured after leveling, the construction period is short, and the installation efficiency is improved. Through install on the bridge section damping support bottom and right crisscross tooth portion carries out elastic support, can the micro-compression or expand at the bottom of the damping support guaranteed that the fishback stretches out the broach can make micro displacement in the direction of height and shift, simultaneously, reduced expansion joint device's rigidity, can play better shock attenuation effect. The seam-crossing type damping multidirectional displacement bridge expansion device is high in connection strength and good in damping effect, and can realize displacement in the height direction.
In a specific implementation manner of embodiment 1 of the present invention, as shown in fig. 1 to 4, the damping support includes a damping block seat box 5 and a damping block 6, the damping block 6 is a rectangular strip shape disposed along the width of the bridge, and the top of the damping block 6 contacts the bottom of the staggered tooth portion. The snubber block 6 splendid attire is in snubber block seat box 5, and the concrete of 5 bottoms of snubber block seat box is pour in the fishback bottom.
Through the 6 splendid attire of snubber block in snubber block seat box 5, install the location to snubber block 6 when being convenient for construct, improved the construction operating efficiency.
In a specific embodiment of example 1 of the present invention, as shown in fig. 1 and 3, the damper block 6 includes a rubber body 601, a laminated steel plate 602, and a sliding plate 603, a plurality of laminated steel plates 602 are laminated in parallel at equal intervals in the rubber body 601, and the sliding plate 603 is laminated on top of the rubber body 601 and contacts with the top surface of the stainless steel plate 9.
Specifically, as shown in fig. 3, the slide plate 603 is made of a high-density polytetrafluoroethylene plate. Obviously, the sliding plate 603 may be made of other high-strength and good-lubricity materials, and similar modifications fall within the scope of the present invention.
Specifically, the top surface of the sliding plate 603 is provided with an oil and grease storage groove, and lubricating silicon grease is stored in the oil and grease storage groove. 5201 silicone grease is specifically used as the silicone grease.
The damping block 6 compounded by the rubber and the steel sheet has the advantages that the compression resistance is enhanced, the local large pressure can be resisted during heavy load, and the service life is prolonged. The sliding plate 603 made of the teflon high-density plate can reduce the friction coefficient and wear when sliding relative to the stainless steel plate 9, and has small friction resistance. Through set up at slide 603 top surface store up the grease recess, store up lubricated silicon grease in the grease recess, can form continuous oil film between slide 603 and corrosion resistant plate 9, further reduce frictional resistance, can fall the noise moreover, avoid noise pollution.
In a specific implementation manner of embodiment 1 of the present invention, as shown in fig. 1 to 4, the seam-crossing type damping multidirectional displacement bridge expansion device further includes a mounting bolt 7, the cross section of the damping block seat box 5 is C-shaped, a flange plate 501 is disposed on the top of a side plate of the damping block seat box 5, and a threaded hole is disposed on the flange plate 501. The mounting bolts 7 can penetrate through the threaded holes of the staggered-tooth threaded connection flange plate 501 from top to bottom.
Through setting up flange plate 501 in the snubber block seat box 5 curb plate outside, be convenient for through construction bolt 7 temporary fixation, transportation and preparation work before the convenient construction need be demolishd construction bolt 7 after the construction is accomplished. The construction efficiency can be improved, and the installation precision of the damping support is ensured.
Example 2 as shown in fig. 5, the present example is formed by adjusting the mounting manner of the damper mount in addition to example 1. The lower part of the inner side of the right anchoring plate 4 is provided with a protruding bearing end 401, and the protruding bearing end 401 protrudes towards the bridge expansion joint. The bottom of the damper block seat box 5 is welded to the top surface of the horizontally disposed protruding bearing end 401.
Welding through snubber block seat box 5 bottom is on exploring the top surface that bears the weight of the 401 level setting of end, can accomplish the installation of snubber block seat box 5 by the prefabrication of mill, and the snubber block seat box 5 of welding mode installation simultaneously, joint strength is higher, can not take place the displacement in the work progress. Support snubber block seat box 5 through 4 local right anchor plates, bearing capacity is strong, avoids taking place the concrete position conquassation condition, has improved equipment life.
In a specific implementation manner of embodiment 1 of the present invention, as shown in fig. 5, the shock-absorbing block seat further includes a left vertical baffle 8, a right vertical baffle 11, and an inner baffle 12, the left vertical baffle 8 is vertically welded and connected to an end surface of the inner side of the left anchoring plate 3, the right vertical baffle 11 is vertically welded and connected to an end surface of the inner side of the protruding bearing end 401, and the inner baffle 12 is welded and connected to a top surface of the protruding bearing end 401 and is located on a side of the shock-absorbing block seat box 5 away from the bridge expansion joint.
In one embodiment of the present invention, as shown in fig. 1 and 5, the left anchor plate 3 and the right anchor plate 4 are provided with lightening holes 301, and the number of the lightening holes 301 is at least one.
Through lightening hole 301's setting, lightened anchor plate weight, the formation hole is convenient for increase the anchor intensity of expansion joint component and concrete material simultaneously, when adopting the ligature silk to fix to the reinforcing bar in addition, lightening hole 301 also can be as the hole of ligature of stirrup, and the construction of being convenient for goes on smoothly.
The utility model also discloses a working method of the seam-crossing type damping multidirectional displacement bridge expansion device, the seam-crossing type damping multidirectional displacement bridge expansion device in any embodiment is utilized for height displacement and damping, and the elastic damping support with strong bearing capacity is arranged below the staggered teeth of the comb plate for adjustable support.
Comb portion cantilever setting that stretches out through the fishback front end and support with adjustable through the shock-absorbing support of below, can guarantee to stride seam fishback and shift in the direction of height, play the shock attenuation effect simultaneously.
According to the seam-crossing type damping multidirectional displacement bridge expansion device, the comb plate is welded to the bridge steel bar framework 10 by taking the left anchoring plate 3 and the right anchoring plate 4 as intermediate structural members, so that the problem that the comb teeth are tilted due to loosening of nuts due to the fact that bolts are used as fixing parts is avoided, the structural strength is increased, the connection strength is high, and the service life is prolonged; meanwhile, the whole body is welded on the steel reinforcement framework on site, concrete is poured after leveling, the construction period is short, and the installation efficiency is improved. Through install on the bridge section damping support bottom and right crisscross tooth portion carries out elastic support, can the micro-compression or expand at the bottom of the damping support guaranteed that the fishback stretches out the broach can make micro displacement in the direction of height and shift, simultaneously, reduced expansion joint device's rigidity, can play better shock attenuation effect. The seam-crossing type damping multidirectional displacement bridge expansion device is high in connection strength and good in damping effect, and can realize displacement in the height direction. In addition, through the snubber block 6 splendid attire in snubber block seat box 5, be convenient for install the location to snubber block 6 during the construction, improved the construction operating efficiency. The damping block 6 compounded by the rubber and the steel sheet has the advantages that the compression resistance is enhanced, the local large pressure can be resisted during heavy load, and the service life is prolonged. The sliding plate 603 made of the teflon high-density plate can reduce the friction coefficient and wear when sliding relative to the stainless steel plate 9, and has small friction resistance. Through set up at slide 603 top surface store up the grease recess, store up lubricated silicon grease in the grease recess, can form continuous oil film between slide 603 and corrosion resistant plate 9, further reduce frictional resistance, can fall the noise moreover, avoid noise pollution. Through setting up flange plate 501 in the snubber block seat box 5 curb plate outside, be convenient for through construction bolt 7 temporary fixation, transportation and preparation work before the convenient construction need be demolishd construction bolt 7 after the construction is accomplished. The construction efficiency can be improved, and the installation precision of the damping support is ensured. Welding through snubber block seat box 5 bottom is on exploring the top surface that bears the weight of the 401 level setting of end, can accomplish the installation of snubber block seat box 5 by the prefabrication of mill, and the snubber block seat box 5 of welding mode installation simultaneously, joint strength is higher, can not take place the displacement in the work progress. Support snubber block seat box 5 through 4 local right anchor plates, bearing capacity is strong, avoids taking place the concrete position conquassation condition, has improved equipment life. Found baffle 8 and the right side through a left side and found baffle 11 and be located respectively bridge expansion joint top both sides can prevent falling the sediment protection to the expansion joint, avoids the slag charge to fall into and influences normal flexible on the breakwater 13 of below. When concrete material is avoided pouring through the setting of interior baffle 12, block dust slag charge, avoid influencing the glide plane between slide 603 and the corrosion resistant plate 9. Through lightening hole 301's setting, lightened anchor plate weight, the formation hole is convenient for increase the anchor intensity of expansion joint component and concrete material simultaneously, when adopting the ligature silk to fix to the reinforcing bar in addition, lightening hole 301 also can be as the hole of ligature of stirrup, and the construction of being convenient for goes on smoothly.
According to the working method of the seam-crossing type damping multidirectional displacement bridge expansion device, the comb tooth part cantilever extending out of the front end of the comb plate is arranged, and the adjustable support is carried out through the lower damping support, so that the seam-crossing comb plate can be guaranteed to displace in the height direction, and meanwhile, the damping effect is achieved.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the scope of the present invention is defined by the claims.
Claims (9)
1. The utility model provides a stride seam formula shock attenuation multidirectional bridge telescoping device that shifts which characterized in that: the bridge expansion joint comprises a left comb plate (1), a right comb plate (2), a left anchoring plate (3), a right anchoring plate (4), a stainless steel plate (9) and a damping support, wherein the left comb plate (1) and the right comb plate (2) are respectively arranged on bridge sections on two sides of the bridge expansion joint, and the left comb plate (1) is arranged on the bridge expansion joint in a spanning mode; the left anchoring plate (3) and the right anchoring plate (4) are respectively vertically welded on the lower bottom surfaces of the outer ends of the left comb plate (1) and the right comb plate (2), the left anchoring plate (3) and the right anchoring plate (4) are arranged along the length direction of the bridge, and the bottoms of the left anchoring plate (3) and the right anchoring plate (4) are welded on bridge steel bar frameworks (10) on two sides of the expansion joint; left side fishback (1) and right fishback (2) inboard crisscross tooth portion below sets up corrosion resistant plate (9), set up under corrosion resistant plate (9) shock absorber, the shock absorber bottom sets up on the bridge section and right crisscross tooth portion carries out elastic support.
2. The seam-crossing shock-absorbing multidirectional displacement bridge expansion device of claim 1, wherein: the damping support comprises a damping block seat box (5) and a damping block (6), the damping block (6) is in a rectangular strip shape arranged along the width of a bridge, and the top of the damping block (6) is in contact with the bottom surfaces of the staggered tooth parts; the damper block (6) is arranged in the damper block seat box (5).
3. The seam-crossing shock-absorbing multidirectional displacement bridge expansion device according to claim 2, wherein: the shock absorption block (6) comprises a rubber body (601), a layer steel plate (602) and a sliding plate (603), wherein a plurality of thin-sheet-shaped layer steel plates (602) are compounded in the rubber body (601) at intervals in parallel, and the sliding plate (603) is compounded on the top of the rubber body (601) and is in contact with the top surface of the stainless steel plate (9).
4. The seam-crossing shock-absorbing multidirectional displacement bridge expansion device of claim 3, wherein: the sliding plate (603) is made of a polytetrafluoroethylene high-density plate.
5. The seam-crossing shock-absorbing multidirectional displacement bridge expansion device of claim 4, wherein: the top surface of the sliding plate (603) is provided with a grease storage groove, and lubricating silicon grease is stored in the grease storage groove.
6. The span-seam type damping multidirectional displacement bridge expansion device according to any one of claims 2 to 5, characterized in that: the damping block seat box is characterized by further comprising mounting bolts (7), the cross section of the damping block seat box (5) is C-shaped, a flange plate (501) is arranged at the top of a side plate of the damping block seat box (5), and threaded holes are formed in the flange plate (501); the mounting bolts (7) can penetrate through the staggered tooth parts from top to bottom to be in threaded connection with the threaded holes of the flange plate (501).
7. The span-seam type damping multidirectional displacement bridge expansion device according to any one of claims 2 to 5, characterized in that: the lower part of the inner side of the right anchoring plate (4) is provided with a protruding bearing end (401), and the protruding bearing end (401) protrudes towards the bridge expansion joint; the bottom of the shock absorption block seat box (5) is welded to the top surface of the protruding bearing end (401).
8. The seam-crossing shock-absorbing multidirectional displacement bridge expansion device of claim 7, wherein: still including a left side founding baffle (8), right side founding baffle (11) and interior baffle (12), a left side founds baffle (8) vertical connection and is in on left side anchor plate (3) medial surface, the right side founds baffle (11) vertical connection and is in on the end of probing out bears end (401) medial surface, interior baffle (12) set up probe out bears end (401) top surface and is located snubber block seat box (5) are kept away from bridge expansion joint one side.
9. The seam-crossing shock-absorbing multidirectional displacement bridge expansion device of claim 1, wherein: the left anchoring plate (3) and the right anchoring plate (4) are provided with lightening holes (301), and the number of the lightening holes (301) is at least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122429773.XU CN215714607U (en) | 2021-10-09 | 2021-10-09 | Seam-crossing type damping multidirectional displacement bridge expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122429773.XU CN215714607U (en) | 2021-10-09 | 2021-10-09 | Seam-crossing type damping multidirectional displacement bridge expansion device |
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| Publication Number | Publication Date |
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| CN215714607U true CN215714607U (en) | 2022-02-01 |
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| CN202122429773.XU Active CN215714607U (en) | 2021-10-09 | 2021-10-09 | Seam-crossing type damping multidirectional displacement bridge expansion device |
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