Railway bridge expansion joint sealing protection device convenient to disassemble and maintain

Abstract

The utility model discloses a railway bridge expansion joint sealing protection device convenient to dismount and maintain, including expansion joint seat, the inside of expansion joint seat is equipped with installation mechanism, and installation mechanism is used for installing fixed expansion joint, and installation mechanism includes the steel bar frame of expansion joint seat one side all connections, and the inside sleeve of expansion joint seat has support seat, and the lower end surface of support seat all is provided with the bolt, and the inside all screw thread connection of support seat has the inside hexagon screw no.

Description

Technical Field

[0001] This utility model relates to the technical field of expansion joint devices, specifically a sealing and protection device for railway bridge expansion joints that is easy to disassemble and maintain. Background Technology

[0002] A bridge is a structure built to cross natural or man-made obstacles, spanning rivers, lakes, and seas to allow vehicles and pedestrians to pass smoothly. A bridge generally consists of a superstructure, substructure, and ancillary structures. The superstructure mainly refers to the bridge span structure and bearing system; the substructure includes abutments, piers, and foundations; and ancillary structures include approach slabs, tapered slopes, revetments, and diversion works. According to structural systems, bridges are classified into four basic systems: beam bridges, arch bridges, rigid frame bridges, and suspension bridges. Bridges are constructed using reinforced concrete structures, which are composite materials formed by adding steel mesh, steel plates, or fibers to concrete to improve its mechanical properties. This is the most common form of reinforced concrete and is widely used. However, in hot weather, due to thermal expansion and contraction, the concrete structure expands, necessitating expansion joints to prevent damage to the internal structure.

[0003] For example, the highway bridge expansion joint sealing and protection device disclosed in authorization announcement number CN219671074U includes an expansion joint body, an elastic component fixedly installed in the mounting groove, and protective components fixedly installed on the upper surface of two sets of mounting plates. The two sets of protective components are fitted together vertically. One set of protective components is movably connected to the elastic component, and an elastic component is movably installed on the lower surface of the other set of protective components. The elastic component is fixedly installed on the upper surface of the other set of mounting plates, and an inclined block is fixedly installed on the upper end of the other set of mounting plates. The inclined block is located at the upper end of one set of protective components.

[0004] This utility model of a highway bridge expansion joint sealing and protection device has the advantages of blocking dust stirred up by passing vehicles and pedestrians outside the expansion joint, thus preventing the expansion joint from being blocked by dust and debris, and can also divert rainwater to prevent long-term accumulation of rainwater and corrosion, thereby achieving the protection of the expansion joint.

[0005] As can be seen from the solutions disclosed in the existing patent documents, the expansion joint body and the protective components are designed as an integral structure, which makes it inconvenient to remove the protective components for maintenance and replacement of the expansion joint and the sealing waterstop. In addition, the lower end surface of the railway track is covered with a large number of stones and debris. During the high-speed travel of the train, the stones and debris are easily moved by vibration, and they are easy to get stuck inside the expansion joint and block it, affecting its effective expansion and contraction. Therefore, it is necessary to improve the existing technology. Utility Model Content

[0006] The purpose of this utility model is to provide a railway bridge expansion joint sealing and protection device that is easy to disassemble and maintain, so as to solve the problems existing in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a railway bridge expansion joint sealing and protection device that is easy to disassemble and maintain, including an expansion joint seat, an installation mechanism installed inside the expansion joint seat, the installation mechanism being used to install and fix the expansion joint, the installation mechanism including a steel frame connected to one side of the expansion joint seat, a support seat being fitted inside the expansion joint seat, a pin being provided on the lower end face of the support seat, and an internal hexagon screw being threaded inside the support seat;

[0008] A telescopic mechanism is installed on the inner side of the support base. The telescopic mechanism is used to ensure the complete connection of the bridge. The telescopic mechanism includes telescopic rods that are staggered on one side of the support base. The telescopic rods are internally threaded with two hexagon socket screws, and the external threads of the two hexagon socket screws are connected with a buffer plate.

[0009] Preferably, the inner side of the support base is provided with a waterproof mechanism for guiding water flow. The waterproof mechanism includes a protective seat connected to one side of the support base, and a rubber ring is fitted inside the protective seat. A waterproof sealing strip is connected to one side of the rubber ring.

[0010] Preferably, the side of the expansion joint seat is tightly attached to a protective seat, and the inside of the protective seat is fitted with a waterproof sealing strip.

[0011] Preferably, the lower end of the pin is inserted into the interior of the expansion joint seat, and the lower end of the hexagonal socket screw is threaded into the expansion joint seat.

[0012] Preferably, the upper end of the protective seat is connected to a telescopic rod, and the upper end face of the telescopic rod is in close contact with the buffer plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This railway bridge expansion joint sealing and protection device, which is easy to disassemble and maintain, allows the support base to be moved upward by rotating and removing the internal hexagon screw, which in turn moves the protective base and the waterproof sealing strip upward. The waterproof sealing strip can also be moved to one end to move the rubber ring to one end for removal, so that the waterproof sealing strip can be removed for maintenance and replacement.

[0015] By rotating and tightening the internal hex bolts, the telescopic rod is connected to the threaded connection, which causes the buffer plate to fit tightly against the telescopic rod, making it easy to fix and install the buffer plate. The design of the buffer plate can prevent stones and debris from getting stuck inside the telescopic rod and blocking it, thus affecting its effective extension and contraction, thereby ensuring the stable operation of the train. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This is a perspective view of the support base of this utility model;

[0018] Figure 3 This is a perspective view of the telescopic pole of this utility model.

[0019] In the diagram: 1 Expansion joint seat, 11 Rebar frame, 12 Support seat, 13 Pin, 14 Hex socket screw I, 15 Protective seat, 16 Rubber ring, 17 Waterproof sealing strip, 2 Telescopic rod, 21 Hex socket screw II, 22 Buffer plate. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-3 The figure shows a railway bridge expansion joint sealing and protection device that is easy to disassemble and maintain. It includes an expansion joint seat 1, an installation mechanism installed inside the expansion joint seat 1, and the installation mechanism is used to install and fix the expansion joint. The installation mechanism includes a steel frame 11 connected to one side of the expansion joint seat 1, an internal retaining support seat 12 of the expansion joint seat 1, a pin 13 provided on the lower end face of the support seat 12, and an internal hexagon screw 14 threadedly connected inside the support seat 12.

[0022] An expansion mechanism is installed on the inner side of the support base 12. The expansion mechanism is used to ensure the complete connection of the bridge. The expansion mechanism includes expansion rods 2 staggered on one side of the support base 12. The internal threads of the expansion rods 2 are connected to hexagon socket screws 21, and the external threads of the hexagon socket screws 21 are connected to buffer plates 22.

[0023] Please see Figure 1-3 A waterproof mechanism is provided on the inner side of the support base 12. The waterproof mechanism is used to guide the flow of water. The waterproof mechanism includes a protective base 15 connected to one side of the support base 12, an internal retaining rubber ring 16 of the protective base 15, and a waterproof sealing strip 17 connected to one side of the rubber ring 16.

[0024] With this setup, rotating the internal hex screw 14 allows the support base 12 to be moved upwards, which in turn moves the protective base 15 and the waterproof sealing strip 17 upwards for removal.

[0025] Please see Figure 1-3The side of the expansion joint seat 1 is tightly attached to the protective seat 15, and the inside of the protective seat 15 is fitted with a waterproof sealing strip 17.

[0026] With this setup, the waterproof sealing strip 17 is moved to one end, which in turn moves the rubber ring 16 to the other end for removal, so that the waterproof sealing strip 17 can be removed for maintenance and replacement. The design of the waterproof sealing strip 17 can guide the water flow to both ends, thereby effectively preventing water seepage under the railway bridge.

[0027] Please see Figure 1-3 The lower end of the pin 13 is inserted into the interior of the expansion joint seat 1, and the lower end of the hexagonal screw 14 is threaded into the expansion joint seat 1.

[0028] With this setup, by inserting the pin 13 into the inside of the expansion joint seat 1, and the support seat 12 snapping into the inside of the expansion joint seat 1, the expansion joint seat 1 is connected to the threaded connection of the hexagonal screw 14 by turning and tightening, thus facilitating the fixed installation of the protective seat 15.

[0029] Please see Figure 1-3 The upper end of the protective seat 15 is connected to the telescopic rod 2, and the upper end face of the telescopic rod 2 is in close contact with the buffer plate 22.

[0030] With this setup, by rotating and tightening the internal hex screw 21 to connect the telescopic rod 2, the buffer plate 22 is moved to fit tightly against the telescopic rod 2, which facilitates the fixed installation of the buffer plate 22. The design of the buffer plate 22 can prevent stones and debris from getting stuck inside the telescopic rod 2 and blocking it, thus affecting its effective extension and contraction, thereby ensuring the stable operation of the train. The design of the telescopic rod 2 can support the buffer plate 22 and prevent the middle of the buffer plate 22 from sinking and causing equipment failure.

[0031] The working principle of this embodiment is as follows: When using this railway bridge expansion joint sealing and protection device that is easy to disassemble and maintain, the steel frame 11 is poured with concrete and connected to the end of the railway bridge. By rotating and removing the hexagonal screw 14, the support seat 12 can be moved upward to drive the protective seat 15 and the waterproof sealing strip 17 to be removed upward. By moving the waterproof sealing strip 17 to one end, the rubber ring 16 can be moved to one end to remove it, so that the waterproof sealing strip 17 can be removed for maintenance and replacement. By inserting the pin 13 into the inside of the expansion joint seat 1, the support seat 12 is locked into the inside of the expansion joint seat 1. By rotating and tightening the hexagonal screw 14, the expansion joint seat 1 is threadedly connected, which facilitates the fixed installation of the protective seat 15.

[0032] It is worth noting that the design of the waterproof sealing strip 17 can guide the water flow to both ends, thereby effectively preventing water seepage under the railway bridge.

[0033] By rotating and tightening the internal hex screw 21, the telescopic rod 2 is connected to the thread, which causes the buffer plate 22 to be tightly attached to the telescopic rod 2, making it easy to fix and install the buffer plate 22. The design of the buffer plate 22 can prevent stones and debris from getting stuck inside the telescopic rod 2 and blocking it, thus affecting its effective extension and contraction, thereby ensuring the stable operation of the train.

[0034] It is worth noting that the design of the telescopic rod 2 can support the buffer plate 22 and prevent the middle of the buffer plate 22 from sinking and causing equipment failure.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealing and protective device for railway bridge expansion joints that is easy to disassemble and maintain, characterized in that: The expansion joint seat (1) is equipped with an installation mechanism inside. The installation mechanism is used to install and fix the expansion joint. The installation mechanism includes a steel frame (11) connected to one side of the expansion joint seat (1). The expansion joint seat (1) has a support seat (12) inside. The lower end face of the support seat (12) is provided with a pin (13). The support seat (12) is threaded with an internal hexagon screw (14). The inner side of the support base (12) is equipped with a telescopic mechanism. The telescopic mechanism is used to ensure the complete connection of the bridge. The telescopic mechanism includes telescopic rods (2) arranged alternately on one side of the support base (12). The telescopic rods (2) are connected to the internal threads of the internal hexagon screws (21). The external threads of the internal hexagon screws (21) are connected to the buffer plate (22).

2. The railway bridge expansion joint sealing and protection device that is easy to disassemble and maintain according to claim 1, characterized in that: The support base (12) is provided with a waterproof mechanism on its inner side. The waterproof mechanism is used to guide the flow of water. The waterproof mechanism includes a protective seat (15) connected to one side of the support base (12). The protective seat (15) has a rubber ring (16) inside it. A waterproof sealing strip (17) is connected to one side of the rubber ring (16).

3. A railway bridge expansion joint sealing and protection device that is easy to disassemble and maintain, as described in claim 1 or 2, characterized in that: The expansion joint seat (1) is closely attached to the side of the protective seat (15), and the interior of the protective seat (15) is fitted with a waterproof sealing strip (17).

4. The railway bridge expansion joint sealing and protection device that is easy to disassemble and maintain according to claim 1, characterized in that: The lower end of the pin (13) is inserted into the interior of the expansion joint seat (1), and the lower end of the internal hex screw (14) is threaded to the expansion joint seat (1).

5. A railway bridge expansion joint sealing and protection device that is easy to disassemble and maintain, as described in claim 2, is characterized in that: The upper end of the protective seat (15) is connected to the telescopic rod (2), and the upper end face of the telescopic rod (2) is in close contact with the buffer plate (22).

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