Double rubber strip modular expansion joint device

Abstract

The utility model relates to expansion joint technical field, concretely is a kind of double rubber strip modulus formula expansion joint device, including symmetrical expansion plate, two groups of symmetrical cylindrical grooves are all set up on the opposite side of expansion plate each other, arc-shaped groove is equipped on expansion plate outer wall surface, several reinforcing plates are all equipped in arc-shaped groove, annular reinforcing bar is all equipped on reinforcing plate side wall, combination connection is carried out through connecting assembly between two expansion plates in handling, two combined cylindrical grooves are all equipped with waterstop rubber strip;The double rubber strip modulus formula expansion joint device, set up two expansion plates with cylindrical groove, arc-shaped groove, and expansion plate outer wall surface is all matched with reinforcing plate, reinforcing bar is all matched on the side surface of reinforcing plate, the stability when the concrete layer of expansion plate and bridge is buried is increased, two waterstop rubber strips, are all matched with corresponding cylindrical groove and are connected with the cooperation of two arc-shaped rubber columns, realize double-layer dustproof waterproof between two expansion plates.

Description

Technical Field

[0001] This utility model relates to the field of expansion joint technology, specifically a double-rubber strip modular expansion joint device. Background Technology

[0002] An expansion joint is a structural joint installed at an appropriate location along the construction joint direction of a building or structure to prevent cracks or damage to the structure caused by changes in climate temperature (thermal expansion and contraction). However, expansion joints are usually made of a single rubber strip. Over time, under the influence of wind and sun, the rubber strip ages and breaks, reducing its waterproof and dustproof effect. Rainwater and dust can easily penetrate the bridge's internal structure through the single, aged rubber strip, causing erosion of the bridge's interior and shortening its service life. Utility Model Content

[0003] The purpose of this invention is to provide a double-strip modular expansion joint device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A double-strip modular expansion joint device includes symmetrical expansion plates. Each expansion plate has two sets of symmetrical cylindrical grooves on its opposite side. The outer wall of the expansion plate has an arc groove, and each arc groove has several reinforcing plates. The side walls of the reinforcing plates have annular steel bars. The two expansion plates are connected by a connecting component during transportation. A water-stop strip is provided between the two sets of cylindrical grooves. The connecting assembly includes a U-shaped plate and a positioning bolt connecting the ends of the U-shaped plate. Both ends of the U-shaped plate have through holes, through which the positioning bolt passes, and the end of the positioning bolt is provided with a nut.

[0005] Furthermore, both ends of the water-stop strip are provided with arc-shaped rubber columns, which are integrally formed with the water-stop strip, and a V-shaped groove is provided in the middle of the water-stop strip.

[0006] In this invention, the arc-shaped rubber column and the water-stop rubber strip work together to achieve corresponding installation and combination of the two ends of the water-stop rubber strip with the telescopic plate. With the cooperation of the V-shaped groove, the rainwater received above is guided to be discharged to both sides. With the cooperation of the two sets of water-stop rubber strips, double-layer dustproof and waterproof protection is provided.

[0007] Specifically, the arc-shaped rubber column is columnar, and the outer diameter of the arc-shaped rubber column is adapted to the inner diameter of the columnar groove.

[0008] In this invention, the arc-shaped rubber column and the columnar groove are engaged to increase the stability of the installation of the water-stop rubber strip and the telescopic plate. The arc-shaped rubber column is hollow in the middle, which facilitates external force compression and deformation, thereby enabling the arc-shaped rubber column to be installed in the columnar groove.

[0009] It should be noted that the width of the outer wall of one side of the reinforcing plate is adapted to the width of the inner wall of the arc groove, the end of the reinforcing plate is inserted into the arc groove, and the reinforcing plate is welded and fixed to the telescopic plate.

[0010] In this invention, multiple reinforcing plates are combined with telescopic plates to increase the tightness of the connection between the outer side of the telescopic plate and the concrete of the bridge, increase the contact area between the telescopic plate and the concrete of the bridge, and thus increase the stability of the installation of the telescopic plate.

[0011] Furthermore, the reinforcing plates are distributed at equal intervals, and the reinforcing bars are in a ring shape, and the reinforcing bars are welded and fixed to the reinforcing plates.

[0012] In this invention, the reinforcing plates are reinforced with steel bars, including ring-shaped steel bars, which increase the contact depth with the concrete of the bridge, increase the grip strength, and thus increase the firmness of the combination between the reinforcing plates and the concrete of the bridge.

[0013] Secondly, the reinforcing plate is symmetrically provided with reinforcing rods, which pass through the reinforcing plate respectively.

[0014] In this invention, two reinforcing rods strengthen the stability between the reinforcing plates and reduce the impact of plate misalignment on fixation.

[0015] It is worth noting that the positioning bolts are engaged with the through holes, the connecting components are evenly spaced, and there is a reinforcing plate between two adjacent connecting components. The reinforcing plates at the point where they fit with the U-shaped plate are provided with round holes. The positioning bolts pass through the through holes and the round holes, and the nuts are threadedly connected to the ends of the positioning bolts.

[0016] In this invention, the cooperation of multiple connecting components enables the two telescopic plates to be fixed in position during transportation. Multiple U-shaped plates are attached close to the corresponding reinforcing plates and fixed in position by positioning bolts, which increases the stability of the U-shaped plates connecting the two telescopic plates. When transported to the gap of the bridge where they need to be installed, the telescopic plates are embedded in the concrete layer of the bridge, the positioning bolts are removed, and the corresponding U-shaped plates are taken out to avoid affecting the traffic of vehicles on the road.

[0017] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model increases the stability of the expansion plate when it is embedded in the concrete layer of the bridge by setting two expansion plates with columnar grooves and arc-shaped grooves, and the outer wall surface of the expansion plate is equipped with a reinforcing plate and a steel bar on one side of the reinforcing plate. The two water-stop strips are engaged with the corresponding columnar grooves with the cooperation of the two arc-shaped rubber columns, so as to achieve double-layer dustproof and waterproof between the two expansion plates.

[0018] 2. This utility model increases the structural stability between reinforcing plates by setting two symmetrical reinforcing rods to connect the reinforcing plates on the same side. At the same time, with the cooperation of multiple connecting components, the U-shaped plate and the corresponding reinforcing plate are tightly fitted, and the positioning bolts pass through the through holes and round holes. With the cooperation of nuts, the U-shaped plate and the reinforcing plate are fixed together. This increases the position of the two telescopic plates during transportation. When installed in the gaps of the bridge, the positioning bolts can be removed to remove the U-shaped plate and avoid affecting the road vehicle traffic after installation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the connection removal component of this utility model; Figure 3 This is a schematic diagram of the connection component structure of this utility model; Figure 4 This is a schematic diagram of the separation structure of the telescopic plate and the reinforcing plate of this utility model; Figure 5 This is a schematic diagram of the structure of the water-stopping strip of this utility model.

[0020] The meanings of the labels in the diagram are as follows: 1. Telescopic plate; 10. Columnar groove; 11. Arc-shaped groove; 2. Reinforcing plate; 20. Reinforcing bar; 21. Reinforcing rod; 22. Round hole; 3. Water-stopping strip; 30. Arc-shaped rubber column; 31. V-groove; 4. Connecting components; 40. U-shaped plate; 400. Through hole; 41. Positioning bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-5 This embodiment provides a technical solution: A modular expansion joint device with double rubber strips includes symmetrical expansion plates 1. Each expansion plate 1 has two sets of symmetrical cylindrical grooves 10 on its opposite side. The outer wall of the expansion plate 1 has an arc groove 11. Each arc groove 11 has several reinforcing plates 2. The width of the outer wall of one side of the reinforcing plate 2 is adapted to the width of the inner wall of the arc groove 11. The end of the reinforcing plate 2 is inserted into the arc groove 11 and is welded to the expansion plate 1.

[0023] In this invention, multiple reinforcing plates 2 are combined with telescopic plates 1 to increase the tightness of the connection between the outer side of the telescopic plate 1 and the concrete of the bridge, increase the contact area between the telescopic plate 1 and the concrete of the bridge, and thus increase the stability of the installation of the telescopic plate 1.

[0024] Furthermore, the side walls of the reinforcing plate 2 are provided with ring-shaped steel bars 20, which are evenly distributed in the reinforcing plate 2 and are ring-shaped. The steel bars 20 are welded and fixed to the reinforcing plate 2.

[0025] In this utility model, the reinforcing plate 2 is equipped with reinforcing bars 20, and the ring-shaped reinforcing bars 20 increase the contact depth with the concrete of the bridge, increase the grip strength, and thus increase the firmness of the combination between the reinforcing plate 2 and the concrete of the bridge.

[0026] Specifically, reinforcing rods 21 are symmetrically provided in the reinforcing plate 2, and the reinforcing rods 21 pass through the reinforcing plate 2 respectively.

[0027] In this invention, two reinforcing rods 21 strengthen the stability between the reinforcing plates 2 and reduce the impact of the offset of the reinforcing plates 2 on the fixation.

[0028] It should be noted that the two telescopic plates 1 are connected by connecting components 4 during transportation, and water-stop strips 3 are provided between the two combined cylindrical grooves 10. Furthermore, both ends of the water-stop strip 3 are provided with arc-shaped rubber columns 30, and the arc-shaped rubber columns 30 and the water-stop strip 3 are integrally formed. The middle of the water-stop strip 3 is provided with a V-shaped groove 31.

[0029] In this utility model, the arc-shaped rubber column 30 and the water-stop rubber strip 3 work together to achieve the corresponding installation and combination of the two ends of the water-stop rubber strip 3 and the telescopic plate 1. With the cooperation of the V-shaped groove 31, the rainwater received above is guided to be discharged to both sides. With the cooperation of the two sets of water-stop rubber strips 3, double-layer dustproof and waterproof protection is provided.

[0030] Specifically, the arc-shaped rubber column 30 is columnar, and the outer diameter of the arc-shaped rubber column 30 is matched with the inner diameter of the columnar groove 10.

[0031] In this utility model, the arc-shaped rubber column 30 is engaged with the columnar groove 10 to increase the stability of the installation of the water-stop rubber strip 3 and the telescopic plate 1. The arc-shaped rubber column 30 is hollow in the middle, which facilitates external force compression and deformation, thereby realizing the installation of the arc-shaped rubber column 30 in the columnar groove 10.

[0032] It is worth adding that the connecting component 4 includes a positioning bolt 41 connecting the U-shaped plate 40 to the end of the U-shaped plate 40. Both ends of the U-shaped plate 40 are provided with through holes 400, the positioning bolt 41 passes through the through holes 400, and the end of the positioning bolt 41 is provided with a nut.

[0033] Furthermore, the positioning bolt 41 is inserted into the through hole 400, the connecting components 4 are evenly distributed, and there is a reinforcing plate 2 between two adjacent connecting components 4. The reinforcing plate 2 at the point where it fits with the U-shaped plate 40 is provided with a round hole 22. The positioning bolt 41 passes through the through hole 400 and the round hole 22, and the nut is threaded to the end of the positioning bolt 41.

[0034] In this invention, with the cooperation of multiple connecting components 4, the positions of the two telescopic plates 1 are fixed during transportation. Multiple U-shaped plates 40 are close to the corresponding reinforcing plates 2 and are fixed in position by positioning bolts 41, which increases the stability of the U-shaped plates 40 connecting the two telescopic plates 1. When transported to the gap of the bridge where it needs to be installed, the telescopic plates 1 are embedded in the concrete layer of the bridge, the positioning bolts 41 are removed, and the U-shaped plates 40 are taken out accordingly, so as to avoid affecting the driving of vehicles on the road.

[0035] In this embodiment, the double-strip modular expansion joint device is used by first tightly inserting the arc-shaped groove 11 on the reinforcing plate 2 with steel bars 20 and welding it in place. Then, the corresponding reinforcing rods 21 are passed through the corresponding reinforcing plates 2 in sequence to increase the stability of the assembly. The two water-stop strips 3 are engaged with the columnar groove 10 on the side wall of the corresponding expansion plate 1 through the arc-shaped rubber column 30. Then, the U-shaped plate 40 is engaged with the two expansion plates 1 in sequence, and the positioning bolts 41 are passed through the through hole 400 and the round hole 22 on the reinforcing plate 2 in sequence to fix the position of the two expansion plates 1 with the U-shaped plate 40, which facilitates transportation and assembly. When installation is required in the gaps of the bridge, the reinforcing bars 20, reinforcing rods 21, and reinforcing plates 2 are sequentially embedded in the concrete layer to increase the stability of the expansion joint 1 installation. Then, the positioning bolts 41 are removed from the U-shaped plate 40 to separate the U-shaped plate 40 from the reinforcing plate 2, reducing the impact of the U-shaped plate 40 on the bridge surface for vehicles to drive on. With the cooperation of the two water-stop strips 3, the double strips achieve waterproof and dustproof cooperation, reducing the entry of rainwater and dust into the bridge interior, reducing the impact of corrosion on the bridge interior, and extending the service life of the bridge. Under external pressure, the arc-shaped rubber column 30 deforms and inserts into the columnar groove 10, and then returns to its initial position. The arc-shaped rubber column 30 and the columnar groove 10 are tightly connected, increasing the stability of the combination of water-stop strips 3.

Claims

1. A double-strip modular expansion joint device, comprising symmetrical expansion plates (1), characterized in that: The telescopic plates (1) each have two sets of symmetrical cylindrical grooves (10) on their opposite sides. The outer wall of the telescopic plates (1) has an arc groove (11). Each arc groove (11) has several reinforcing plates (2). Each reinforcing plate (2) has a ring-shaped steel bar (20) on its side wall. The two telescopic plates (1) are connected by a connecting component (4) during transport. A water-stop strip (3) is provided between the two sets of cylindrical grooves (10). The connecting component (4) includes a U-shaped plate (40) and a positioning bolt (41) connecting the end of the U-shaped plate (40). Both ends of the U-shaped plate (40) are provided with through holes (400), the positioning bolt (41) passes through the through holes (400), and the end of the positioning bolt (41) is provided with a nut.

2. The double-strip modular expansion joint device according to claim 1, characterized in that: Both ends of the water-stop strip (3) are provided with arc-shaped rubber columns (30), and the arc-shaped rubber columns (30) and the water-stop strip (3) are integrally formed. The middle of the water-stop strip (3) is provided with a V-shaped groove (31).

3. The double-strip modular expansion joint device according to claim 2, characterized in that: The arc-shaped rubber column (30) is columnar, and the outer diameter of the arc-shaped rubber column (30) is adapted to the inner diameter of the columnar groove (10).

4. The double-strip modular expansion joint device according to claim 1, characterized in that: The width of the outer wall of one side of the reinforcing plate (2) is adapted to the width of the inner wall of the arc groove (11), the end of the reinforcing plate (2) is inserted into the arc groove (11), and the reinforcing plate (2) is welded and fixed to the telescopic plate (1).

5. The double-strip modular expansion joint device according to claim 1, characterized in that: The reinforcing plates (2) are distributed at equal intervals, and the reinforcing bars (20) are in a ring shape. The reinforcing bars (20) are welded and fixed to the reinforcing plates (2).

6. The double-strip modular expansion joint device according to claim 1, characterized in that: The reinforcing plate (2) is provided with symmetrical reinforcing rods (21), and the reinforcing rods (21) pass through the reinforcing plate (2) respectively.

7. The double-strip modular expansion joint device according to claim 1, characterized in that: The positioning bolt (41) is inserted into the through hole (400). The connecting components (4) are distributed at equal intervals. There is a reinforcing plate (2) between two adjacent connecting components (4). The reinforcing plate (2) that is in contact with the U-shaped plate (40) is provided with a round hole (22). The positioning bolt (41) passes through the through hole (400) and the round hole (22), and the nut is threaded to the end of the positioning bolt (41).

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