Bridge expansion joint sealing tape installation device

CN224833460UActive Publication Date: 2026-10-09HUNAN LONGYE CONSTRUCTION ENGINEERING CO LTD
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Patent Information

Application Number
CN202522285037.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-29
Publication Date
2026-10-09
Estimated Expiration
2035-10-29

AI Technical Summary

Technical Problem

[0003]目前更换止水带都是采用人工方式,不论是清除止水带还是安装止水带,劳动强度都非常大,工作效率低,旧止水带很难清除干净

Benefits of technology

[0012] This utility model device has a very simple structure. A power unit mounted on a mobile frame drives a straight-line pressure head to rotate, installing a new waterstop pre-placed in the bridge expansion joint into the steel beam slot in one operation. It can install 1-2 meters per minute, significantly saving construction time. Operation is simple: just place the device on the bridge expansion joint, use the pressure head to press the new waterstop into the steel beam slot, and the device will automatically move to complete the waterstop replacement and installation. This device has low manufacturing costs, reducing construction costs by more than 50%.

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Abstract

The utility model discloses a bridge expansion joint water stop tape installation device, the device includes the frame, is located on the walking mechanism and the tape removal mechanism of frame, the walking mechanism includes the wheel of being located on the frame and the first power mechanism of drive wheel, the tape removal mechanism includes the second power mechanism of being located on the frame, the pressure head of the horizontal rotation of the "Chinese character" shape that is located the bottom of frame is established on the second power mechanism, the utility model discloses simple structure, and convenient operation is used, and 1-2 meters water stop tape can be installed every minute, and the low manufacturing cost can reduce construction cost more than 50%.
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Description

Technical Field

[0001] This utility model pertains to bridge maintenance equipment, specifically relating to a bridge expansion joint waterstop installation device. Background Technology

[0002] Expansion joints on highway bridges are specialized structures installed during bridge construction to accommodate structural deformation caused by factors such as temperature changes and concrete shrinkage. They are typically located where the bridge deck pavement separates from the railings. Their core function is to allow for free horizontal and vertical expansion and contraction of the bridge, while simultaneously ensuring smooth driving and meeting waterproofing and dustproofing requirements. Figure 1 As shown, the bridge expansion joint S includes a steel beam slot c installed on the bridge deck d to form a gap a, and a waterstop b embedded in the gap a within the steel beam slot c. The waterstop, a rubber product, is a crucial component of the bridge expansion joint. Installed on both sides of the expansion joint within the steel beam slots, it seals the gap, preventing water, dust, and impurities from entering. It not only provides waterproofing but also blocks the intrusion of external factors such as wind, sand, and rainwater, ensuring the bridge structure is not corroded or damaged.

[0003] Currently, waterstop replacement is done manually. Whether removing or installing waterstops, the labor intensity is extremely high, work efficiency is low, and it's difficult to completely remove the old waterstops. No specialized device for installing waterstops has yet been discovered. Utility Model Content

[0004] The purpose of this utility model is to provide a bridge expansion joint waterstop installation device that is simple in structure and easy to use.

[0005] The technical solution adopted to achieve the purpose of this utility model is as follows: The bridge expansion joint waterstop installation device provided by this utility model includes a frame, a traveling mechanism mounted on the frame, and a strip removal mechanism. The traveling mechanism includes wheels mounted on the frame and a first power mechanism for driving the wheels. The strip removal mechanism includes a second power mechanism mounted on the frame and a horizontally rotating pressure head in the shape of an "I" shaped plate vertically mounted on the second power mechanism and located at the bottom of the frame.

[0006] The frame is a flat plate structure, and the wheels include two front wheels and two rear wheels that are respectively mounted on the front and rear of the bottom of the frame via axles.

[0007] The first power mechanism includes a first motor mounted on the rear of the frame and a first reduction mechanism connected to the first motor, the first reduction mechanism being connected to the axle on which the rear wheel is mounted; the second power mechanism includes a second motor mounted on the front of the frame, a second reduction mechanism connected to the second motor, and a connecting shaft connected to the output shaft of the second reduction mechanism, the pressure head being connected to the second reduction mechanism via the connecting shaft.

[0008] The first motor and the second motor are connected to the control box via wires.

[0009] The frame is equipped with handrails.

[0010] The pressure head includes a screw and a strip-shaped pressure block located at the bottom of the screw, with the four corners at both ends of the pressure block having arc surfaces.

[0011] Alternatively, the pressure head may include a screw and a strip-shaped pressure block, the pressure block being provided with a threaded connector, and the pressure block being connected to the screw through the threaded connector; the four corners at both ends of the pressure block are rounded. Beneficial effects

[0012] This utility model device has a very simple structure. A power unit mounted on a mobile frame drives a straight-line pressure head to rotate, installing a new waterstop pre-placed in the bridge expansion joint into the steel beam slot in one operation. It can install 1-2 meters per minute, significantly saving construction time. Operation is simple: just place the device on the bridge expansion joint, use the pressure head to press the new waterstop into the steel beam slot, and the device will automatically move to complete the waterstop replacement and installation. This device has low manufacturing costs, reducing construction costs by more than 50%.

[0013] The technical solution of this utility model will be further described below with reference to the accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a bridge expansion joint.

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

[0016] Figure 3 This is the left view of this utility model.

[0017] Figure 4 This is the right view of this utility model.

[0018] Figure 5 This is a top view of the present invention.

[0019] Figure 6 This is a schematic diagram of the pressure head in this utility model.

[0020] Figure 7 This is a schematic diagram of different pressure head structures.

[0021] Figure 8 yes Figure 7 An exploded view of the pressure head shown.

[0022] Figure 9 This is a schematic diagram of the usage state of this utility model.

[0023] Figure 10 yes Figure 9 A sectional view along the AA direction. Detailed Implementation

[0024] See Figure 2 —5. The bridge expansion joint waterstop installation device provided by this utility model includes a frame 6, a traveling mechanism and a strip removal mechanism on the frame 6. The traveling mechanism includes wheels on the frame 6 and a first power mechanism for driving the wheels. The strip removal mechanism includes a second power mechanism on the frame 6 and a horizontally rotating "I"-shaped pressure head 8 on the second power mechanism and located at the bottom of the frame 6.

[0025] More specifically, the structure is as follows: the frame 6 is a flat metal plate structure, and the wheels include two front wheels 4 and two rear wheels 4' respectively mounted on the bottom of the frame 6 via axles 9; the first power mechanism includes a first motor 1 mounted on the rear of the frame 6 and a first reduction mechanism 2 connected to the first motor 1, the first reduction mechanism 2 being connected to the axle 9 on which the rear wheels 4' are mounted; the second power mechanism includes a second motor 5 mounted on the front of the frame 6, a second reduction mechanism 10 connected to the second motor 5, and a connecting shaft 7 connected to the output shaft of the second reduction mechanism 10, the pressure head 8 being connected to the second reduction mechanism 10 via the connecting shaft 7; the first motor 1 and the second motor 5 are connected to the control box 11 via wires 12.

[0026] The first motor 1 is an AC or DC motor, which is decelerated by the first reduction mechanism 2; the second motor 5 can also be an AC or DC motor, which is decelerated by the second reduction mechanism 10, or it can be a slow AC or DC motor without the second reduction mechanism 10.

[0027] The frame 6 is equipped with a handrail 3, which allows workers to hold onto the frame 6 while it is moving, ensuring that the frame 6 moves more stably.

[0028] The pressure head 8 is as follows Figure 6 As shown, it includes a screw 801 and a strip-shaped pressure block 802 located at the bottom of the screw 801. The pressure block 802 is made of steel, and its four corners at both ends are rounded surfaces 803. The pressure block 802 can be threadedly connected to the connecting shaft 7 via the screw 801. The width of the pressure block 802 is adapted to the width of the gap a of the bridge expansion joint S, and the length is adapted to the distance between the groove walls of the steel beam slots c on both sides of the gap a of the bridge expansion joint S.

[0029] The pressure head 8 can also adopt other structures, such as Figure 7 , Figure 8As shown, the screw 801 and the pressure block 802 adopt a separate structure. The pressure block 802 is equipped with a threaded connector 804, which connects the pressure block 802 to the screw 801. The screw 801 uses a thread with the opposite rotation direction to the second motor 5. With this structure, after the screw 801 is threadedly connected to the connecting shaft 7, the pressure block 802 can be rotated to adjust its position on the screw 801, thus meeting the height requirements of the steel beam slot c in different bridge expansion joints S from the ground, resulting in better adaptability.

[0030] During the installation of the waterstop, the new waterstop b is manually and smoothly placed into the gap a of the bridge expansion joint S. First, the pressure head 8 is installed on the connecting shaft 7 driven by the second motor 5, so that the pressure block 802 of the pressure head 8 can just extend downwards into the steel beam slot c in the gap a of the bridge expansion joint S (see...). Figure 2 , Figure 3 Then, the device is moved to the expansion joint where the new waterstop needs to be installed, so that the pressing block 802 of the pressing head 8 is horizontally downward to press the new waterstop b into the steel beam slot c in the expansion joint gap a. Simultaneously, the first motor 1 and the second motor 5 are started via the control box 11. The first motor 1 drives the frame 8 to move along the expansion joint at a speed of approximately 1-3 meters per minute via the reduction mechanism 2. The second motor 5 drives the pressing head 8 to rotate at a speed of approximately 1-10 revolutions per minute via the second reduction mechanism 10. As the pressing head 8 moves with the frame 6, the pressing block 802 presses the new waterstop b completely into the slot c of the expansion joint (see...). Figure 9 , Figure 10 When the pressure block 802 rotates, the smooth arc surfaces at its four corners reduce friction, preventing damage to the new waterstop b and the groove c, and smoothly completing the installation of the new waterstop b.

Claims

1. A bridge expansion joint waterstop installation device, characterized in that: It includes a frame, a running mechanism mounted on the frame, and a belt removal mechanism. The running mechanism includes wheels mounted on the frame and a first power mechanism for driving the wheels. The belt removal mechanism includes a second power mechanism mounted on the frame and a horizontally rotating pressure head in the shape of an "I" shaped object mounted vertically on the second power mechanism and located at the bottom of the frame.

2. The bridge expansion joint waterstop installation device according to claim 1, characterized in that: The frame is a flat plate structure, and the wheels include two front wheels and two rear wheels that are respectively mounted on the front and rear of the bottom of the frame via axles.

3. The bridge expansion joint waterstop installation device according to claim 2, characterized in that: The first power mechanism includes a first motor mounted on the rear of the frame and a first reduction mechanism connected to the first motor, the first reduction mechanism being connected to the axle on which the rear wheel is mounted; the second power mechanism includes a second motor mounted on the front of the frame, a second reduction mechanism connected to the second motor, and a connecting shaft connected to the output shaft of the second reduction mechanism, the pressure head being connected to the second reduction mechanism via the connecting shaft.

4. The bridge expansion joint waterstop installation device according to claim 3, characterized in that: The first motor and the second motor are connected to the control box via wires.

5. The bridge expansion joint waterstop installation device according to any one of claims 1 to 4, characterized in that: The frame is equipped with handrails.

6. The bridge expansion joint waterstop installation device according to claim 1, characterized in that: The pressure head includes a screw and a strip-shaped pressure block located at the bottom of the screw, with the four corners at both ends of the pressure block having arc surfaces.

7. The bridge expansion joint waterstop installation device according to claim 1, characterized in that: The pressure head includes a screw and a strip-shaped pressure block. The pressure block is provided with a threaded connector and is connected to the screw through the threaded connector. The four corners at both ends of the pressure block are rounded.