Quickly-mounted expansion joint for railroad bridge

Abstract

The utility model discloses a rapid installation expansion joint for a railway bridge. The rapid installation expansion joint comprises a fixing mechanism and a waterproof rubber strip installed on the top of the fixing mechanism. The fixing mechanism comprises a bridge main body, an open groove is formed in the top of one end of the bridge main body, and the bottom of the open groove is fixedly connected with an embedded rib; wherein the tops of the pre-embedded ribs are connected with transverse penetrating ribs in an attached mode, and the sides, close to the pre-embedded ribs, of the transverse penetrating ribs are connected with fixing steel bars in an attached mode; reinforcing plates are fixedly connected to the two ends of the fixing steel bar, first connecting columns are connected to the tops of the reinforcing plates in an attached mode, fixing blocks are fixedly connected to one sides of the interiors of the first connecting columns, the bottoms of the fixing blocks are slidably connected with the reinforcing plates, grooves are formed in the fixing blocks, and protruding blocks are slidably connected to the interiors of the grooves. By arranging the fixing mechanism, the expansion joint can be rapidly installed between the two bridge main bodies, welding of the expansion joint is not needed, and therefore the working efficiency of construction is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridges, in particular to a quick-installation expansion joint for railway bridges. Background Art

[0002] Expansion joints, also known as temperature joints, are used to prevent cracks in buildings caused by climate change. These gaps are usually reserved at regular intervals along the length of the building, disconnecting the building from all above-ground components such as the roof, walls, and floors, allowing the building components to expand and contract horizontally freely.

[0003] Publication No. CN218911116U discloses a bridge expansion joint structure. By providing a support plate below the elastic body, the support plate supports the elastic body to prevent the elastic body from deforming downward or falling downward, thereby improving the stability of the elastic body positioning and the stability of the expansion joint structure. However, this patent still has the following problems in actual use:

[0004] Although this type of expansion joint structure for a bridge can prevent the elastomer from deforming downward or falling downward by setting a support plate to lift the elastomer, thereby improving the stability of the expansion joint structure, the expansion joint is relatively cumbersome during the installation process and requires welding and other technologies to fix the expansion joint, thereby reducing construction efficiency.

[0005] A quick-install expansion joint for railway bridges is proposed to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the present utility model is to provide a quick-install expansion joint for railway bridges, so as to solve the problem proposed in the above-mentioned background technology that currently a support plate is provided to support the elastomer to prevent the elastomer from deforming downward or falling downward, thereby improving the stability of the expansion joint structure. However, the expansion joint is relatively cumbersome during the installation process and needs to be fixed by welding and other technologies, thereby reducing the construction efficiency.

[0007] To achieve the above-mentioned object, the utility model provides the following technical solutions: a quick-install expansion joint for a railway bridge, comprising a fixing mechanism and a waterproof rubber strip installed on the top of the fixing mechanism;

[0008] Also includes:

[0009] The fixing mechanism includes a bridge body, a slot is formed on the top of one end of the bridge body, and a pre-buried reinforcement is fixedly connected to the bottom of the slot;

[0010] The top of the embedded reinforcement is connected with a cross reinforcement, and the side of the cross reinforcement close to the embedded reinforcement is connected with a fixed reinforcement.

[0011] Wherein, both ends of the fixed steel bar are fixedly connected with a reinforcing plate, and the top of the reinforcing plate is fitted and connected with a first connecting column.

[0012] Preferably, a fixing block is fixedly connected to one side of the interior of the first connecting column, and the bottom of the fixing block is slidably connected to the reinforcing plate.

[0013] Preferably, a groove is provided inside the fixing block, and a protrusion is slidably connected inside the groove.

[0014] Preferably, one end of the protrusion passes through the fixing block and is connected to the reinforcing plate in an engaging manner, and the other end of the protrusion is fixedly connected to a spring.

[0015] Preferably, one end of the spring away from the protrusion is fixedly connected to the groove, and a sliding groove is provided at the center position inside the protrusion.

[0016] Preferably, the interior of the slide groove is slidably connected to a cylinder, the outer side of one end of the cylinder is rotatably connected to a push rod, and the outer side of the push rod is slidably connected to a fixed block.

[0017] Preferably, one side of the top end of the first connecting post is snap-connected with a waterproof rubber strip, and one end of the waterproof rubber strip away from the first connecting post is snap-connected with the second connecting post.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the expansion joint for a railway bridge can be quickly installed between two bridge bodies by providing a fixing mechanism, without the need for welding, thereby improving construction efficiency. The specific contents are as follows:

[0019] By setting up a fixing mechanism, the expansion joint can be quickly installed between the two bridge bodies without welding, thereby improving construction work efficiency. The cross reinforcement can be fixed to the top of the embedded reinforcement using iron wire, and the cross reinforcement and the fixed reinforcement are wrapped together using iron wire, so that the reinforcement plate can be quickly fixed and installed. At the same time, the reinforcement plate is limited by the protrusion, and the first connecting column and the second connecting column can be installed on the surface of the reinforcement plate, thereby eliminating the need for welding and fixing, thereby improving work efficiency. The waterproof rubber strip is installed between the top of the first connecting column and the second connecting column to complete the installation of the expansion joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the front cross-section structure of the utility model;

[0021] Figure 2 For this utility model Figure 1 A in the middle is an enlarged structural diagram;

[0022] Figure 3 For this utility model Figure 2 Schematic diagram of the structure of the spring in the compressed state.

[0023] In the figure: 1. fixing mechanism; 101. bridge body; 102. slot; 103. embedded reinforcement; 104. cross reinforcement; 105. fixed reinforcement; 106. reinforcement plate; 107. first connecting column; 108. fixing block; 109. groove; 110. protrusion; 111. spring; 112. slide; 113. cylinder; 114. push rod; 115. waterproof rubber strip; 116. second connecting column. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-3 The utility model provides a technical solution: a quick-install expansion joint for a railway bridge, comprising a fixing mechanism 1 and a waterproof rubber strip 115 installed on the top of the fixing mechanism 1; the fixing mechanism 1 comprises a bridge body 101, a slot 102 is provided on the top of one end of the bridge body 101, and a pre-embedded reinforcement 103 is fixedly connected to the bottom of the slot 102; a cross reinforcement 104 is fitted and connected to the top of the pre-embedded reinforcement 103, and a fixed steel bar 105 is fitted and connected to the side of the cross reinforcement 104 close to the pre-embedded reinforcement 103. By providing the cross reinforcement 104, the fixed steel bar 105 can be installed on the top of the pre-embedded reinforcement 103, thereby improving the stability of the reinforcing plate 106;

[0026] Both ends of the fixed steel bar 105 are fixedly connected to a reinforcing plate 106. The top of the reinforcing plate 106 is fitted with a first connecting column 107. A fixing block 108 is fixedly connected to one side of the first connecting column 107. The bottom of the fixing block 108 is slidably connected to the reinforcing plate 106. The provision of the fixing block 108 can prevent the first connecting column 107 from moving left and right on the surface of the reinforcing plate 106.

[0027] A groove 109 is formed inside the fixing block 108, and a protrusion 110 is slidably connected to the inside of the groove 109. One end of the protrusion 110 passes through the fixing block 108 and is engaged with the reinforcing plate 106. The other end of the protrusion 110 is fixedly connected to a spring 111. The provision of the spring 111 can ensure that the protrusion 110 is always engaged with the reinforcing plate 106 when no external force is applied, thereby improving the stability of the device.

[0028] One end of the spring 111 away from the protrusion 110 is fixedly connected to the groove 109. A sliding groove 112 is provided at the center of the protrusion 110. A cylinder 113 is slidably connected to the inside of the sliding groove 112. A push rod 114 is rotatably connected to the outside of one end of the cylinder 113. The outside of the push rod 114 is slidably connected to the fixed block 108. Pressing the push rod 114 drives the cylinder 113 to move downward in the sliding groove 112, which drives the protrusion 110 to move in the groove 109 toward the direction of the spring 111, so that the protrusion 110 can be retracted into the fixed block 108, and the fixed block 108 can be inserted into the reinforcing plate 106.

[0029] One side of the top of the first connecting column 107 is snap-connected with a waterproof rubber strip 115 , and the end of the waterproof rubber strip 115 away from the first connecting column 107 is snap-connected with a second connecting column 116 . The bottom structure of the second connecting column 116 is consistent with that of the first connecting column 107 .

[0030] Working principle: Before using this kind of rapid installation expansion joint for railway bridge, it is necessary to check the overall condition of the device to ensure that it can work normally. Figure 1 - Figure 3 As shown, first, grooves 102 are opened at the joints of the two bridge bodies 101, and then embedded reinforcement bars 103 are laid inside the bridge body 101. Crossing reinforcement bars 104 can be fixed to the tops of the embedded reinforcement bars 103 using iron wires. At the same time, the crossing reinforcement bars 104 and the fixing reinforcement bars 105 are twisted together using iron wires, so that the reinforcing plates 106 can be quickly fixed and installed.

[0031] Next, pressing the push rod 114 drives the cylinder 113 to move downward in the slide groove 112, thereby driving the protrusion 110 to move in the groove 109 in the direction of the spring 111, thereby retracting the protrusion 110 into the fixed block 108, and the fixed block 108 can be inserted into the reinforcing plate 106. Then, releasing the push rod 114, the restoring force of the spring 111 drives the protrusion 110 to return to its original position and engage with the reinforcing plate 106, and the first connecting column 107 and the second connecting column 116 can be installed on the surface of the reinforcing plate 106.

[0032] Finally, the waterproof rubber strip 115 is installed between the top of the first connecting column 107 and the top of the second connecting column 116, and then concrete is poured into the groove 102 to complete the installation of the expansion joint.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A quick-install expansion joint for a railway bridge, comprising a fixing mechanism (1) and a waterproof rubber strip (115) installed on the top of the fixing mechanism (1); It is characterized in that Also includes: The fixing mechanism (1) comprises a bridge body (101), a slot (102) is provided at the top of one end of the bridge body (101), and a pre-embedded reinforcement (103) is fixedly connected to the bottom of the slot (102); The top of the embedded reinforcement (103) is connected to a transverse reinforcement (104), and the side of the transverse reinforcement (104) close to the embedded reinforcement (103) is connected to a fixed reinforcement (105). Wherein, both ends of the fixed steel bar (105) are fixedly connected with a reinforcing plate (106), and the top of the reinforcing plate (106) is fitted and connected with a first connecting column (107).

2. The quick-install expansion joint for a railway bridge according to claim 1, characterized in that: A fixing block (108) is fixedly connected to one side of the interior of the first connecting column (107), and the bottom of the fixing block (108) is slidably connected to the reinforcing plate (106).

3. The quick-install expansion joint for a railway bridge according to claim 2, characterized in that: A groove (109) is provided inside the fixing block (108), and a protrusion (110) is slidably connected inside the groove (109).

4. The quick-install expansion joint for a railway bridge according to claim 3, characterized in that: One end of the protrusion (110) passes through the fixed block (108) and is engaged with the reinforcing plate (106), and the other end of the protrusion (110) is fixedly connected to a spring (111).

5. The quick-install expansion joint for a railway bridge according to claim 4, characterized in that: One end of the spring (111) away from the protrusion (110) is fixedly connected to the groove (109), and a sliding groove (112) is provided at the center position inside the protrusion (110).

6. The quick-install expansion joint for a railway bridge according to claim 5, characterized in that: The interior of the slide groove (112) is slidably connected to a cylinder (113), the outer side of one end of the cylinder (113) is rotatably connected to a push rod (114), and the outer side of the push rod (114) is slidably connected to a fixed block (108).

7. The quick-install expansion joint for a railway bridge according to claim 2, characterized in that: One side of the top end of the first connecting column (107) is snap-connected with a waterproof rubber strip (115), and one end of the waterproof rubber strip (115) away from the first connecting column (107) is snap-connected with a second connecting column (116).

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