Easy-to-install bridge prefabricated component connection structure

Abstract

This utility model relates to the field of bridge construction technology, and in particular to a bridge precast component connection structure for easy installation. It includes a limiting structure and an auxiliary structure installed on the bridge pier. The limiting structure includes a limiting frame and two connecting rods. When the bridge erecting machine lifts the precast component, the limiting structure moves to the joint of the two precast components via the auxiliary structure. Driven by a first motor, its output shaft rotates a bidirectional lead screw, causing two threaded blocks to move the moving rods horizontally in opposite directions on the outer surface of the bidirectional lead screw. This allows the vertical frames on both sides to clamp the precast component below. The multiple sets of auxiliary pulleys improve the stability of the precast component below, preventing swaying, without affecting the speed below. This achieves the purpose of limiting the precast component below and enabling rapid joint installation.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, specifically to a connection structure for prefabricated bridge components that is easy to install. Background Technology

[0002] Bridge construction is the process of building a bridge according to its design specifications. It mainly includes construction technology, construction organization, construction management, and construction quality. The basic processes of bridge construction include preparation, foundation construction, superstructure construction, and acceptance and maintenance. Superstructure construction includes beam casting, splicing, and closure. Foundation treatment, foundation construction methods, and the construction of cable-stayed and suspension bridges are key steps in bridge engineering construction.

[0003] In existing bridge prefabricated components are connected using a bridge erecting machine. However, when the bridge erecting machine lifts the prefabricated component to connect with another component, the lack of limiting sway prevents it from aligning with the pre-embedded steel piles on the bridge pier, requiring constant adjustments and affecting the overall efficiency of the construction. Based on the shortcomings of existing technology, this utility model designs a bridge prefabricated component connection structure that is easy to install. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a bridge prefabricated component connection structure that is easy to install, with the advantages of limiting the prefabricated components below and enabling rapid docking and installation.

[0005] This utility model provides the following technical solution: a bridge prefabricated component connection structure that is easy to install, including a limiting structure and an auxiliary structure installed on the bridge pier. The limiting structure includes a limiting frame and two connecting rods. A first fixing rod is fixedly installed on one side of the outer surface of the limiting frame. A first motor is fixedly installed inside the first fixing rod. A bidirectional lead screw is fixedly installed at one end of the output shaft of the first motor. Threaded blocks are threaded on both sides of the outer surface of the bidirectional lead screw. Moving rods are fixedly installed on one side of the outer surface of the two threaded blocks. Two vertical frames are fixedly installed below the two moving rods. Multiple sets of auxiliary pulleys are rotatably installed inside the two vertical frames.

[0006] As a preferred embodiment of this utility model, the two connecting rods are fixed on both sides of the bottom of the limiting frame, and sliders are fixedly installed on the bottom of the two connecting rods.

[0007] As a preferred embodiment of this utility model, supports are fixedly installed on both sides of the outer surface of the two sliders, and rollers are rotatably installed inside the two supports.

[0008] As a preferred embodiment of this utility model, the auxiliary structure includes a fixed slide rail, and two pulleys are rotatably mounted inside the fixed slide rail.

[0009] As a preferred embodiment of this utility model, steel cables are sleeved on the outer surfaces of the two pulleys, and a section of the steel cable on each side is fixedly connected to the two sliders respectively.

[0010] As a preferred embodiment of the present invention, a second fixing rod is fixedly installed on the outer surface of the fixed slide rail, a second motor is fixedly installed inside the second fixing rod, and one end of the output shaft of the second motor is fixedly connected to one of the pulleys.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This easy-to-install bridge precast component connection structure, through a limiting structure, allows the bridge erecting machine to lift the precast components. The limiting structure moves to the joint of the two precast components via an auxiliary structure. Driven by the first motor, its output shaft drives the bidirectional lead screw to rotate. This allows the two threaded blocks to move the moving rod horizontally in opposite directions on the outer surface of the bidirectional lead screw. At this time, the vertical frames on both sides can clamp the precast component to be lowered. Through the setting of multiple sets of auxiliary pulleys, the stability of the precast component is improved and the shaking is prevented when it is lowered, without affecting the speed of the lower part. This achieves the purpose of limiting the lower precast component and quickly connecting and installing it.

[0013] 2. This easy-to-install bridge prefabricated component connection structure, by fixing the fixed slide rail to both sides of the bridge pier with bolts during the erection of the bridge prefabricated components, and connecting one end of the steel cable to the slider, when the second motor drives the pulley, the reciprocating motion of the steel cable can drive the limiting structure to the docking point of the prefabricated component. After the erection is completed, the fixed slide rail can be removed from the bridge pier, which improves the flexibility of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the auxiliary structure of this utility model;

[0016] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0017] Figure 4 This is a schematic diagram of the fixing screw structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the limiting structure of this utility model.

[0019] In the diagram: 1. Limiting structure; 101. Limiting frame; 102. First fixing rod; 103. First motor; 104. Two-way lead screw; 105. Threaded block; 106. Moving rod; 107. Vertical frame; 108. Auxiliary pulley; 109. Connecting rod; 110. Slider; 111. Support; 112. Roller; 2. Auxiliary structure; 21. Fixed slide rail; 22. Pulley; 23. Steel cable; 24. Second fixing rod; 25. Second motor; 26. Back block; 27. Fixing screw; 28. Fastening nut. 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 1-5 A bridge prefabricated component connection structure for easy installation includes a limiting structure 1 and an auxiliary structure 2 installed on the bridge pier. The limiting structure 1 includes a limiting frame 101 and two connecting rods 109. A first fixing rod 102 is fixedly installed on one side of the outer surface of the limiting frame 101. A first motor 103 is fixedly installed inside the first fixing rod 102. A bidirectional lead screw 104 is fixedly installed at one end of the output shaft of the first motor 103. Threaded blocks 105 are threaded on both sides of the outer surface of the bidirectional lead screw 104. Moving rods 106 are fixedly installed on one side of the outer surface of the two threaded blocks 105. Two vertical frames 107 are fixedly installed below the two moving rods 106. Multiple sets of auxiliary pulleys 108 are rotatably installed inside the two vertical frames 107.

[0022] Please see Figure 3 and Figure 5 Two connecting rods 109 are fixed to the bottom sides of the limiting frame 101, and sliders 110 are fixedly installed at the bottom of the two connecting rods 109. Supports 111 are fixedly installed on both sides of the outer surface of the two sliders 110, and rollers 112 are rotatably installed inside the two supports 111. The auxiliary structure 2 includes a fixed slide rail 21, and two pulleys 22 are rotatably installed inside the fixed slide rail 21. Steel cables 23 are sleeved on the outer surface of the two pulleys 22, and one end of the steel cables 23 on both sides is fixedly connected to the two sliders 110 respectively. A second fixed rod 24 is fixedly installed on the outer surface of the fixed slide rail 21, and a second motor 25 is fixedly installed inside the second fixed rod 24. One end of the output shaft of the second motor 25 is fixedly connected to one of the pulleys 22.

[0023] By fixing the fixed slide rail 21 to both sides of the bridge pier with bolts, and connecting one end of the steel cable 23 to the slider 110, when the second motor 25 drives the pulley 22, the reciprocating motion of the steel cable 23 can drive the limiting structure 1 to the docking point of the precast component. After the installation is completed, the fixed slide rail 21 can be removed from the bridge pier.

[0024] Please see Figure 2-4 The fixed slide rail 21 is composed of multiple individual plates, and a back block 26 is fixedly installed on the back of each individual plate. A fixing screw 27 is threaded inside every two adjacent back blocks 26, and a fastening nut 28 is threaded at both ends of each fixing screw 27.

[0025] By setting the back blocks 26, when dealing with bridges of different lengths, different numbers of fixed slide rails 21 can be selected according to the length of the bridge. The back blocks 26 on both sides are connected by the fixing screws 27, and can be quickly fixed by the fastening nuts 28 on both sides.

[0026] Working principle: When using the bridge precast component connection structure that is easy to install, firstly, when dealing with bridges of different lengths, select different numbers of fixed slide rails 21 according to the bridge length. Connect the back blocks 26 on both sides through the fixing screws 27, and quickly fix them through the fastening nuts 28 on both sides. Then fix the fixed slide rails 21 to both sides of the bridge pier with bolts. One end of the steel cable 23 is connected to the slider 110. Therefore, when the second motor 25 drives the pulley 22, the reciprocating motion of the steel cable 23 can drive the limiting structure 1 to the docking point of the precast component. When the bridge erecting machine lifts the precast component, the output shaft of the first motor 103 drives the double-acting screw 104 to rotate through the drive of the first motor 103. This allows the two threaded blocks 105 to drive the moving rod 106 to move horizontally in opposite directions on the outer surface of the double-acting screw 104 at the same time. At this time, the vertical frames 107 on both sides can clamp the precast component that is about to be lowered. Through the setting of multiple sets of auxiliary pulleys 108, the stability of the precast component under the bridge can be improved, ensuring that there is no shaking, and without affecting the speed of the lower section.

[0027] 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 bridge precast component connecting structure convenient to install, comprising a limiting structure and an auxiliary structure installed on a pier, characterized in that: The limiting structure includes a limiting frame and two connecting rods; A first fixing rod is fixedly installed on one side of the outer surface of the limiting frame. A first motor is fixedly installed inside the first fixing rod. A bidirectional lead screw is fixedly installed at one end of the output shaft of the first motor. Threaded blocks are threaded on both sides of the outer surface of the bidirectional lead screw. Moving rods are fixedly installed on one side of the outer surface of the two threaded blocks. Two vertical frames are fixedly installed below the two moving rods. Multiple sets of auxiliary pulleys are rotatably installed inside the two vertical frames.

2. The easily installed bridge precast component connection of claim 1, wherein: The two connecting rods are fixed to the bottom sides of the limiting frame, and sliders are fixedly installed at the bottom of the two connecting rods.

3. The easily installed bridge precast component connection of claim 2, wherein: Supports are fixedly installed on both sides of the outer surface of the two sliders, and rollers are rotatably installed inside the two supports.

4. The easily installed bridge precast component connection of claim 1, wherein: The auxiliary structure includes a fixed slide rail, and two pulleys are rotatably mounted inside the fixed slide rail.

5. The easily installed bridge precast component connection of claim 4, wherein: Steel cables are fitted onto the outer surfaces of the two pulleys, and a section of each steel cable is fixedly connected to one of the two sliders.

6. The easily installed bridge precast component connection of claim 4, wherein: A second fixing rod is fixedly installed on the outer surface of the fixed slide rail, and a second motor is fixedly installed inside the second fixing rod. One end of the output shaft of the second motor is fixedly connected to one of the pulleys.

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