Waterproof expansion joint device for highway bridge

Abstract

The utility model belongs to the technical field of expansion joints, and particularly relates to a highway bridge waterproof expansion joint device which comprises a rubber sealing strip, clamping protruding strips are fixed to the two sides of the rubber sealing strip, edge beams are arranged on the two sides of the rubber sealing strip, clamping openings are formed in the upper portions of the side walls of the edge beams, and the clamping protruding strips are connected with the clamping openings. The inner wall of the clamping opening and the outer wall of the clamping protruding strip are clamped with each other, vertical rails are arranged on the side wall of the edge beam, and the number of the vertical rails is multiple. When the rubber sealing strip needs to be replaced, the extrusion batten is controlled to integrally move downwards, at the moment, the relative gap between the extrusion batten and the clamping opening is increased, the rubber sealing strip is separated from the clamping opening under the action of gravity, and at the moment, the rubber sealing strip can be easily taken out from the position between the edge beams. The operation efficiency of the rubber sealing strip replacing process of the rubber sealing strip device is improved, and the construction progress is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of expansion joints, and specifically relates to a waterproof expansion joint device for highway bridges. Background Technique

[0002] A bridge expansion joint refers to an expansion joint usually arranged between two beam ends, between a beam end and an abutment, or at the hinge position of a bridge to meet the requirements of bridge deck deformation. It is required that the expansion joint can freely expand and contract in two directions parallel and perpendicular to the bridge axis, be firm and reliable, and when a vehicle passes by, it should be smooth, without sudden jumps and noises; it should be able to prevent rainwater, garbage, and soil from seeping in and blocking; installation, inspection, maintenance, and removal of dirt should be simple and convenient. At the location where the expansion joint is set, the railing and the bridge deck pavement should both be disconnected.

[0003] At present, in the prior art, the expansion joint device mainly includes structures such as rubber sealing strips, side beams, anchor plates, and anchor bars. The anchor plate is fixed below the side beam, the anchor bars are installed below the anchor plate, the two side beams respectively fit with both sides of the rubber sealing strip, and the two anchor bars are respectively installed between adjacent bridge slabs. The rubber sealing strip is used to achieve the sealed connection of the bridge gap and prevent rainwater and sundries from passing through the expansion joint.

[0004] Chinese Patent Document CN 111676811 A discloses a bridge expansion joint device. A water stop belt placed between two adjacent cross beams is connected in the first connection groove of the two adjacent cross beams. In order to ensure that the water stop belt is not easily dropped after installation, the opening of the first connection groove is smaller than the inside, and the water stop belt needs to be squeezed into the first connection groove. Moreover, the first connection groove is located in the gap between the two cross beams, which is not convenient for installing and replacing the water stop belt.

[0005] However, in the prior art, the mutual clamping method between the side beam and the sealing rubber strip makes it difficult to take out the rubber sealing strip from the bayonet of the side beam when the rubber sealing strip needs to be replaced, which affects the construction progress and the construction efficiency is low.

[0006] Therefore, a waterproof expansion joint device for highway bridges is proposed to solve the above problems. Content of the Utility Model

[0007] In order to make up for the deficiencies of the prior art and solve the problem that it is difficult to take out the rubber sealing strip from the bayonet of the side beam when the rubber sealing strip needs to be replaced, which affects the construction progress, a waterproof expansion joint device for highway bridges is proposed.

[0008] The technical solution adopted by the present utility model to solve its technical problems is as follows: A waterproof expansion joint device for highway bridges of the present utility model includes a rubber sealing strip. On both sides of the rubber sealing strip, engaging ridges are fixed. On both sides of the rubber sealing strip, side beams are provided. An engaging opening is formed above the side wall of the side beam, and the inner wall of the engaging opening is engaged with the outer wall of the engaging ridge. A vertical track is formed on the side wall of the side beam, and a plurality of vertical tracks are provided. The plurality of vertical tracks are arranged in an array along the edge direction of one side of the side beam. An anchoring plate is fixed below the side beam, and a plurality of anchoring plates are provided. The plurality of anchoring plates respectively correspond to the plurality of vertical tracks, and anchoring bars are fixed on the front surfaces of the plurality of anchoring plates.

[0009] Preferably, extrusion strip plates are provided below both sides of the rubber sealing strip. On one side of the extrusion strip plate, a plurality of fitting sliders are fixed. The plurality of fitting sliders respectively correspond to the plurality of vertical tracks, and the outer wall of the fitting slider is engaged with the inner wall of the vertical track.

[0010] Preferably, vertical lead screws are rotatably provided at both ends of the side beam, and the two vertical lead screws are parallel to each other. A threaded through hole is provided on the extrusion strip plate, and the threaded through hole is in fit connection with the vertical lead screw.

[0011] Preferably, a positioning clamping member is further included. The positioning clamping member includes a cross plate, a first longitudinal plate, a second longitudinal plate, and a third longitudinal plate that are parallel and arranged on the lower surface of the cross plate. Rotating shafts are symmetrically provided at the lower parts of the two end faces of the first longitudinal plate. At the position corresponding to the rotating shaft on the outer side surface of one side beam, a sleeve is provided, and the rotating shaft is rotatably connected to the sleeve;

[0012] The second longitudinal plate and the third longitudinal plate are clamped on both sides of the top of the opposite side beam;

[0013] The sleeve and the anchoring plate are arranged at intervals.

[0014] Preferably, the third longitudinal plate is rotatably connected to the cross plate, a clamping plate is provided at the lower end of the third longitudinal plate, and a clamping groove is provided at the position corresponding to the clamping plate on the side surface of the side beam.

[0015] Preferably, a driving block is provided at the top of the vertical lead screw, and the driving block is a hexagonal prism.

[0016] Preferably, a locking assembly is provided on the end face of the side beam, and the locking assembly is provided above the vertical lead screw. The locking assembly includes a rotating plate rotatably provided on the side beam. At the position opposite to the driving block on the bottom surface of the rotating plate, a locking sleeve is provided, and threading dies are uniformly distributed along the circumferential direction on the inner wall of the locking sleeve.

[0017] Advantages of the utility model:

[0018] The utility model provides a waterproof expansion joint device for highway bridges. The extrusion strip plate is mutually fitted with the inner wall of the vertical track through the fitting slider, so that the extrusion strip plate can change its relative position vertically upward under the restriction of the vertical track. The extrusion strip plate is located below the rubber sealing strip, and it can realize the installation of the rubber sealing strip on the side beam by upward extrusion and cooperation with the engaging opening. When the rubber sealing strip needs to be replaced, the whole extrusion strip plate is controlled to move downward. At this time, the relative gap between the extrusion strip plate and the engaging opening is increased, and the rubber sealing strip is separated from the engaging opening under the action of gravity. At this time, the rubber sealing strip can be easily taken out from between the side beams, which improves the operation efficiency during the replacement of the rubber sealing strip by the rubber sealing strip device and ensures the construction progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the utility model, and constitute a part of this application. The schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute an improper limitation of the utility model. In the drawings:

[0020] Figure 1 is a three-dimensional view of the utility model;

[0021] Figure 2 is a three-dimensional view of the rubber sealing strip in the utility model;

[0022] Figure 3 is a partial structural schematic diagram of the side beam in the utility model;

[0023] Figure 4 is a front view structural schematic diagram of the side beam in the utility model;

[0024] Figure 5 is a structural schematic diagram of the extrusion plate strip in the utility model;

[0025] Figure 6 is a structural schematic diagram of the positioning fastener in the utility model;

[0026] Figure 7 is a right view structural schematic diagram of the sleeve in the utility model;

[0027] Figure 8 is a structural schematic diagram of the locking assembly in the utility model;

[0028] Figure 9 is a structural schematic diagram of the locking sleeve in the utility model;

[0029] Figure 10 is a structural schematic diagram of the locking sleeve sleeved on the driving block in the utility model. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0031] The following gives specific embodiments.

[0032] Please refer to Figure 1 - Figure 2 , the present utility model provides a waterproof expansion joint device for highway bridges, including a rubber sealing strip 1. Clamping ridges 11 are fixed on both sides of the rubber sealing strip 1. Side beams 2 are arranged on both sides of the rubber sealing strip 1. A clamping opening 21 is formed above the side wall of the side beam 2. The inner wall of the clamping opening 21 is clamped with the outer wall of the clamping ridge 11. A vertical track 22 is formed on the side wall of the side beam 2. The number of the vertical tracks 22 is multiple, and the multiple vertical tracks 22 are arranged in an array along one side edge direction of the side beam 2. An anchor plate 23 is fixed below the side beam 2. The number of the anchor plates 23 is multiple, and the multiple anchor plates 23 correspond to the multiple vertical tracks 22 respectively. Anchor bars 24 are fixed on the front surfaces of the multiple anchor plates 23;

[0033] During operation, in order to solve the problem that it is not easy to take out the rubber sealing strip 1 from the clamping opening of the side beam 2 when the rubber sealing strip 1 needs to be replaced, which affects the construction progress, the two side beams 2 are respectively installed on the adjacent side walls of two bridges. The side beam 2 and the rubber sealing strip 1 are linked through the clamping opening 21 being clamped with the clamping ridge 11 fixed on the rubber sealing strip 1. The vertical track 22 is a structure formed on the side wall of the side beam 2 to cooperate with the installation of the extrusion strip plate 5. The anchor plate 23 and the anchor bar 24 are installed outside the side beam 2 to play a role in fixing the side beam 2. After the anchor plate 23 and 44 are fixed to the bridge contact surface, the side beam 2 is fixed. The rubber sealing strip 1 is installed between the adjacent side walls of the side beam 2, and the relative connection and sealing between the gaps of the bridge deck are realized through it. Moreover, the elastic deformation characteristic of the rubber sealing strip 1 itself enables it to adapt to the micro-deformation on both sides of the bridge, ensuring the relative connection and sealing of the two side beams 2;

[0034] The rubber sealing strip 1 is hermetically connected to the side beam 2, which can prevent water from flowing into the bridge joint from the expansion joint position when there is water on the bridge deck, and guide the water to flow under the bridge from both sides of the rubber sealing strip, preventing the concrete at the bridge joint from cracking and corroding.

[0035] Such as Figure 3And Figure 5 As shown in the figure, further, extrusion strip plates 5 are arranged below both sides of the rubber sealing strip 1. A fitting slider 51 is fixed on one side of the extrusion strip plate 5. The number of the fitting sliders 51 is set to be multiple. The multiple fitting sliders 51 respectively correspond to multiple vertical rails 22, and the outer wall of the fitting slider 51 is engaged with the inner wall of the vertical rail 22.

[0036] During operation, the extrusion strip plate 5 is fitted with the inner wall of the vertical rail 22 through the fitting slider 51, so that under the restriction of the vertical rail 22, the relative position of the extrusion strip plate 5 can be changed vertically upward. Since the extrusion strip plate 5 is located below the rubber sealing strip 1, it can cooperate with the clamping opening 21 by upward extrusion to realize the installation of the side beam 2 on the rubber sealing strip 1.

[0037] Further, vertical lead screws 7 are rotatably arranged at both ends of the side beam 2. The two vertical lead screws are parallel to each other. A threaded through hole is provided on the extrusion strip plate 5, and the threaded through hole is in fit connection with the vertical lead screw 7.

[0038] During operation, the vertical lead screw 7 rotates, drives the extrusion strip 5 to move up and down through the threaded through hole. After the rubber sealing strip 1 is installed, rotate the vertical lead screw 7, drive the extrusion strip 5 to move upward through the threaded through hole 6, and press the rubber sealing strip 1 tightly in the clamping opening 21 to improve the sealing performance of the rubber sealing strip;

[0039] When the rubber sealing strip 1 needs to be replaced, the vertical lead screw rotates in the reverse direction, drives the extrusion strip 5 to move downward through the threaded through hole, relaxes the extrusion on the rubber sealing strip 1, and provides a larger space for replacing the rubber sealing strip. After the rubber sealing strip 1 is replaced, raise the extrusion strip 5 again to press the rubber sealing strip 1 tightly;

[0040] Upper support plates and lower support plates are arranged on the two end faces of the side beam 2. The upper support plate is arranged at the upper part of the end face, and the lower support plate is arranged at the lower part of the end face. Coaxial upper connection holes and lower connection holes are respectively arranged on the upper support plate and the lower support plate. The vertical lead screw 7 is rotatably connected with the upper support plate and the lower support plate through the upper connection hole and the lower connection hole; the top surface height of the upper support plate is lower than the top surface height of the side beam 2.

[0041] As Figures 6 - 8 shown in the figure, further, a positioning clip 3 is further included. The positioning clip 3 includes a cross plate 31 and a first longitudinal plate 32, a second longitudinal plate 34 and a third longitudinal plate 35 which are arranged in parallel on the lower surface of the cross plate 31. Rotating shafts 33 are symmetrically arranged at the lower parts of the two end faces of the first longitudinal plate 32. A sleeve 4 is arranged at a position corresponding to the rotating shaft 33 on the outer side surface of one side beam 2, and the rotating shaft 33 is rotatably connected with the sleeve 4;

[0042] The second longitudinal plate 34 and the third longitudinal plate 35 are clamped on two sides of the top of the opposite side beam 2;

[0043] The sleeve 4 is spaced apart from the anchor plate 23 .

[0044] During operation, the positioning fixture 3 is used to position two oppositely arranged side beams 2 when installing the bridge expansion joint, and to limit the distance between the two side beams 2. When positioning the two side beams 2, the lower surface of the cross plate should be in close contact with the top surfaces of the two side beams 2 to ensure that the top surfaces of the two side beams 2 are in the same height;

[0045] After the two side beams 2 are placed in place, the anchoring bars 24 on the side beams 2 are welded to the pre-embedded bars preset on the bridge. After all the anchoring bars 24 are welded to the corresponding pre-embedded bars, the second longitudinal plate 34 and the third longitudinal plate 35 clamped on one of the side beams 2 are separated from the side beam 2, so that the positioning clamp 3 is rotated 180 degrees from the clamping position and is also located on the outside of the side beam together with the anchoring bars 24; concrete is poured between the bridge body and the side beam 2 to make the side beam 2 and the bridge body become one, and then the rubber sealing strip 1 is installed between the two opposite side beams to prevent water from entering the bridge;

[0046] The sleeve 4 is spaced apart from the anchor plate 23, and at least two sleeves 4 are provided;

[0047] The sleeves 4 can be arranged alternately on the outer sides of two opposite side beams 2, so that the positioning clamps are arranged alternately between the two side beams 2.

[0048] The first longitudinal plate 32 and the third longitudinal plate 35 are arranged at the left and right ends of the transverse plate 31, and the second longitudinal plate 34 is arranged in the middle of the transverse plate 31. The height of the second longitudinal plate 34 is less than that of the first longitudinal plate 32 to prevent the second longitudinal plate 34 from interfering with the side beam 2 when the positioning clamp rotates, thereby affecting the rotation of the positioning clamp 3.

[0049] Furthermore, the third longitudinal plate 35 is rotatably connected to the transverse plate 31 , a clamping plate 36 is provided at the lower end of the third longitudinal plate 35 , and a clamping groove 25 is provided at a position on the side surface of the side beam 2 corresponding to the clamping plate 36 .

[0050] During operation, the two side beams 2 are placed parallel to each other, the horizontal plate 31 of the positioning clamp 3 is pressed against the top surfaces of the two side beams 2, and the third longitudinal plate 35 is rotated so that the clamping plate 36 is clamped in the clamping groove 25 to limit the installation distance between the two side beams 2. After the two side beams are installed in place and welded to the embedded reinforcement of the bridge, the third longitudinal plate 35 is rotated in the opposite direction to disengage the clamping plate 36 from the clamping groove 25. The positioning clamp 3 can be rotated with the rotating shaft 33 as the axis. After the positioning clamp 3 is rotated 180 degrees, the positioning clamp 3 is rotated to the outside of the side beam 2.

[0051] like Figures 9 - 10As shown, further, a driving block 71 is provided at the top of the vertical lead screw 7, and the driving block 71 is a hexagonal prism.

[0052] During operation, when the extrusion strip plate needs to be lifted or lowered, a wrench or power tool can be used to rotate the driving block 71. Using a power tool can quickly complete the lifting and lowering of the extrusion strip plate, improve work efficiency, and the operation is simple and fast.

[0053] Further, a locking assembly is provided on the end face of the side beam 2. The locking assembly is arranged above the vertical lead screw 7. The locking assembly includes a rotating plate 8 rotatably arranged on the side beam 2. A locking sleeve 9 is arranged at a position on the bottom surface of the rotating plate 8 opposite to the driving block 71. Thread chasers 91 are arranged on the inner wall of the locking sleeve 9 and are evenly distributed along the circumferential direction.

[0054] During operation, in order to prevent the vertical lead screw 7 from automatically rotating under the influence of vibration or other factors, causing the extrusion strip plate 5 to descend and unable to play the role of pressing the rubber sealing strip 1, a locking assembly is provided above the vertical lead screw. The rotating plate 8 is arranged above the driving block 71. The rotating plate 8 is rotatably connected to the end face of the side beam 2. The locking sleeve 9 is arranged on the bottom surface of the rotating plate 8. The thread chasers arranged along the circumferential direction on the inner wall of the locking sleeve are used to limit the rotation of the driving block 71. The inner wall of the locking sleeve can be set as an internal hexagonal sleeve adapted to the shape of the driving block. In order to reduce the adjustment of the angle between the driving block and the locking sleeve when locking the driving block, the thread chasers 91 on the inner wall of the locking sleeve can be set in the form of 12 thread chasers as Figure 10 shown, and the non-adjacent tooth grooves can form a hexagonal shape, which is adapted to the hexagonal prism shape of the driving block. The tooth groove refers to the part of the groove formed between two adjacent thread chasers.

[0055] Working principle: To solve the problem that it is not easy to remove the rubber sealing strip 1 from the bayonet of the side beam 2 when the rubber sealing strip 1 needs to be replaced, which affects the construction progress, the two side beams 2 are respectively installed on the adjacent side walls of two bridges. The side beam 2 is engaged with the engaging rib 11 fixed on the rubber sealing strip 1 through the engaging opening 21 to realize the linkage between the rubber sealing strip 1 and the side beam 2. The anchor plate 23 and the anchor bar 24 are installed outside the side beam 2 to play a role in fixing the side beam 2. After the anchor plate 23 and 44 are fixed to the bridge contact surface, the fixation of the side beam 2 is realized. The extrusion strip plate 5 is fitted with the inner wall of the vertical track 22 through the fitting slider 51, so that the extrusion strip plate 5 can change its relative position vertically upward under the restriction of the vertical track 22. The extrusion strip plate 5 is located below the rubber sealing strip 1, and it can cooperate with the engaging opening 21 by upward extrusion to realize the installation of the side beam 2 on the rubber sealing strip 1. Vertical lead screws 7 are symmetrically arranged on the end faces at both ends of the side beam 2. Threaded through holes are provided on the extrusion strip plate 5. Rotating the vertical lead screws 7 can lift the extrusion strip plate 5, which is convenient to provide a larger operating space when installing or replacing the rubber sealing strip 1. After the installation or replacement is completed, the rubber sealing strip 1 is pressed tightly to improve the sealing effect between the rubber sealing strip 1 and the side beam 2, which can prevent water from entering the bridge from between the rubber sealing strip 1 and the connection, and improve the service life of the concrete; a driving block 7 is arranged on the top surface of the vertical lead screw 7 to facilitate the rotation of the vertical lead screw 7, and the locking component prevents the vertical lead screw 7 from rotating during use, reducing the extrusion effect of the extrusion strip plate 5;

[0056] The positioning fixture 3 is used to limit the installation distance between two relatively arranged side beams 2. According to the designed distance between the two side beams 2 during the installation of the side beams, the positions of the second longitudinal plate 34 and the third longitudinal plate 35 are set so that the distance between the two side beams 2 clamped on the positioning fixture 3 meets the requirements of the designed distance. Then, the anchor bar 24 on the side beam 2 is welded to the embedded bar of the bridge body. After the welding is completed, the positioning fixture 3 is rotated 180 degrees around the rotating shaft 33, and the first longitudinal plate 32 is used to lean against the outside of the side beam 2. Like the anchor plate 23 and the anchor bar 24, they are all located outside the side beam 2, and they can also play a role in strengthening the concrete strength when pouring concrete for the side beam 2 and the bridge body. Therefore, the number of anchor plates and anchor bars can be reduced, and the positioning fixture 3 is set at the corresponding position. After rotating the positioning fixture 3 to the outside of the side beam 2, the positioning fixture 3 can be welded to the embedded bar of the bridge.

[0057] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A waterproof expansion joint device for a highway bridge, comprising a rubber sealing strip (1), wherein both sides of the rubber sealing strip (1) are fixed with engaging convex strips (11), both sides of the rubber sealing strip (1) are provided with side beams (2), a engaging opening (21) is provided above the side wall of the side beam (2), the inner wall of the engaging opening (21) is engaged with the outer wall of the engaging convex strip (11), and the device is characterized in that: A vertical track (22) is provided on the side wall of the side beam (2), and a plurality of the vertical tracks (22) are provided. The plurality of vertical tracks (22) are arranged in an array along a side edge direction of the side beam (2). An anchoring plate (23) is fixed below the side beam (2), and a plurality of the anchoring plates (23) are provided. The plurality of anchoring plates (23) respectively correspond to the plurality of vertical tracks (22), and anchoring ribs (24) are fixed to the front surfaces of the plurality of anchoring plates (23); An extruded strip plate (5) is provided below both sides of the rubber sealing strip (1), a mating slider (51) is fixed to one side of the extruded strip plate (5), a plurality of mating sliders (51) are provided, the plurality of mating sliders (51) respectively correspond to a plurality of vertical tracks (22), and the outer wall of the mating slider (51) and the inner wall of the vertical track (22) are engaged with each other; Vertical screws (7) are rotatably arranged at both ends of the side beam (2), and the two vertical screws are parallel to each other. The extruded strip plate (5) is provided with a threaded through hole, and the threaded through hole is matched and connected with the vertical screw (7).

2. A waterproof expansion joint device for a highway bridge according to claim 1, characterized in that: The side beam (2) further comprises a positioning fixture (3), wherein the positioning fixture (3) comprises a transverse plate (31) and a first longitudinal plate (32), a second longitudinal plate (34) and a third longitudinal plate (35) arranged in parallel on the lower surface of the transverse plate (31); a rotating shaft (33) is symmetrically arranged at the lower part of the two end surfaces of the first longitudinal plate (32); a sleeve (4) is arranged at a position corresponding to the rotating shaft (33) on the outer surface of one of the side beams (2); and the rotating shaft (33) is rotatably connected to the sleeve (4); The second longitudinal plate (34) and the third longitudinal plate (35) are clamped on two sides of the top of the opposite side beam (2); The sleeve (4) and the anchor plate (23) are arranged at intervals.

3. A waterproof expansion joint device for a highway bridge according to claim 2, characterized in that: The third longitudinal plate (35) is rotatably connected to the transverse plate (31), a clamping plate (36) is provided at the lower end of the third longitudinal plate (35), and a clamping groove (25) is provided at a position corresponding to the clamping plate (36) on the side surface of the side beam (2).

4. A waterproof expansion joint device for a highway bridge according to claim 1, characterized in that: A driving block (71) is arranged on the top of the vertical lead screw (7), and the driving block (71) is a hexagonal prism.

5. A waterproof expansion joint device for a highway bridge according to claim 4, characterized in that: A locking assembly is arranged on the end surface of the side beam (2), and the locking assembly is arranged above the vertical screw (7). The locking assembly comprises a rotating plate (8) rotatably arranged on the side beam (2), a locking sleeve (9) is arranged on the bottom surface of the rotating plate (8) at a position opposite to the driving block (71), and the inner wall of the locking sleeve (9) is provided with lever teeth (91) evenly distributed along the circumferential direction.

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