Bottom-holding protection device for bridge construction
The bridge construction bottom protection device, which combines a moving guide rail and a drive component, solves the problem of wastewater collection during bridge construction, realizes real-time collection and dynamic adjustment of wastewater, and improves construction efficiency and environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MUNICIPAL ENG CO LTD OF CHINA RAILWAY 12TH BUREAU GRP
- Filing Date
- 2025-04-22
- Publication Date
- 2026-04-28
AI Technical Summary
In existing bridge construction, wastewater generated during cutting is difficult to collect effectively, leading to pollution of the construction site and surrounding environment. Furthermore, traditional equipment designs are often unreasonable or complex and cannot adapt to the actual site conditions.
Design a bridge construction bottom protection device including a moving guide rail and a drive component. The drive component moves the wastewater collection tank along the guide rail, tracks the cutting point in real time, and ensures timely collection of wastewater. The device adopts a modular straight tooth guide rail and support frame structure to adapt to different construction environments and schedules.
It enables timely collection of wastewater, prevents its spread, improves construction efficiency and quality, adapts to different construction environments and schedules, and ensures the cleanliness and safety of the construction area.
Smart Images

Figure CN224173201U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bridge construction protection technology, specifically relating to a bridge construction bottom protection device. Background Technology
[0002] A bridge construction safety device utilizes wire saw cutting technology, which employs a high-speed rotating diamond wire to cut beams. During this process, a coolant (usually water or a water-based coolant) needs to be continuously injected to cool the cutting surface, reduce frictional heat, and remove cutting debris. However, this process faces a pressing technical problem in practice: the wastewater generated during cutting, including coolant and fine particles carried away by the cut material, can pollute the construction site and surrounding environment if not properly treated, and may also pose a potential hazard to the groundwater system.
[0003] Especially in bridge construction, bridge beams are often located at high positions with limited space below, and it is necessary to ensure the safety and cleanliness of the traffic or work areas below. Therefore, it is crucial to effectively collect wastewater during the beam cutting process to prevent it from dripping directly onto the ground or to collect it for later treatment.
[0004] Currently, although there are some simple wastewater collection devices on the market, most of them have unreasonable designs. For example, some devices may only collect wastewater temporarily with simple plastic sheets or trays, and cannot effectively guide the wastewater to the designated collection system; others may have complex structures, be time-consuming and labor-intensive to install, and are not easy to adjust according to the actual site conditions, thus limiting their practical application.
[0005] Therefore, a bridge construction safety device is needed to solve the problem of timely wastewater collection and real-time adjustment based on on-site construction conditions. Utility Model Content
[0006] To address the aforementioned problems in the existing technology, this utility model provides a bridge construction bottom protection device that solves the problem of inadequate protection by the protective net and the existence of blind spots in protection.
[0007] The objective of this utility model can be achieved through the following technical solutions:
[0008] A bridge construction under-construction protection device includes a movable guide rail, a wastewater collection tank, and a drive assembly. The movable guide rail is detachably installed at both ends of the bridge, and the wastewater collection tank is installed at the bottom of the bridge to collect wastewater generated during bridge cutting. The wastewater collection tank spans the bottom of the bridge and is connected to the drive assembly installed on the movable guide rail. The drive assembly is rotatably connected to the movable guide rail, and the rotation of the drive assembly drives the wastewater collection tank to move along the bridge construction direction.
[0009] Preferably, the movable guide rail includes a plurality of straight toothed guide rails; a plurality of mounting holes are provided on both sides of the straight toothed guide rails, and any one of the mounting holes is engaged with a bolt to detachably anchor the straight toothed guide rail to the bridge; the straight toothed guide rails in the unconstructed areas are laid as the construction progresses.
[0010] Preferably, the drive assembly includes a rotating shaft, a circular gear, and a rotating handle; the rotating shaft, the rotating handle, and the circular gear are coaxially connected, the circular gear meshes with the spur guide rail, and the rotation of the rotating handle drives the circular gear to move along the spur guide rail.
[0011] Preferably, the movable guide rail includes a support frame, which is fixedly disposed on both sides of the spur tooth guide rail and is perpendicular to the spur tooth guide rail; the support frame is horizontally provided with a sliding groove, and the two sides of the rotating shaft are slidably connected to the sliding grooves on both sides respectively.
[0012] Preferably, the wastewater collection tank includes a water guiding section and a collection section; the water guiding section and the collection section are fixedly connected, and the water guiding section is inclined to guide wastewater to the collection section.
[0013] Preferably, the wastewater collection tank further includes a horizontal support rod, which is disposed at the bottom of the water guide section. The horizontal support rod is square and is used to keep the water guide section horizontal during movement. The horizontal support rod is also rotatably connected to the rotating shaft.
[0014] The beneficial effects of this utility model are as follows:
[0015] This application uses a drive component to move the wastewater collection tank along the guide rail, enabling real-time tracking of the cutting operation point and ensuring that wastewater can be collected as soon as possible, avoiding disorderly flow and diffusion of wastewater. The combination of the drive component and the moving guide rail allows the wastewater collection tank to be dynamically adjusted according to construction needs, adapting to different construction environments and schedules. Attached Figure Description
[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a schematic diagram of the installation structure of the protective device provided in one embodiment of the present invention;
[0018] Figure 2 This is a schematic diagram of the movable guide rail structure provided in one embodiment of the present invention;
[0019] Figure 3 This is a cross-sectional view of the wastewater collection bucket provided in one embodiment of the present invention;
[0020] Figure 4This is a schematic diagram of the connection structure between the moving guide rail and the drive component provided in one embodiment of the present invention;
[0021] Legend: 1. Moving guide rail; 11. Straight toothed guide rail; 111. Mounting hole; 12. Support frame; 121. Sliding groove; 2. Wastewater collection tank; 21. Water guiding part; 22. Collection part; 23. Horizontal support rod; 3. Drive assembly; 31. Rotating shaft; 32. Circular tooth; 33. Rotating handle; 4. Bridge. Detailed Implementation
[0022] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0023] like Figures 1-4 As shown, a bridge construction bottom protection device includes a movable guide rail 1, a wastewater collection tank 2, and a drive assembly 3. The movable guide rail 1 is detachably installed at both ends of the bridge 4, and the wastewater collection tank 2 is installed at the bottom of the bridge 4 to collect wastewater generated during the cutting of the bridge 4. The wastewater collection tank 2 spans the bottom of the bridge 4 and is connected to the drive assembly 3 installed on the movable guide rail 1. The drive assembly 3 is rotatably connected to the movable guide rail 1, and the rotation of the drive assembly 3 drives the wastewater collection tank to move along the construction direction of the bridge 4.
[0024] Before construction of bridge 4 begins, the movable guide rail 1 is detachably installed at both ends of bridge 4. The design of the guide rail ensures that it can adapt to different widths and structures of bridge 4, providing a stable path for the movement of the wastewater collection tank 2. The wastewater collection tank 2 is placed at the bottom of bridge 4, with the initial position determined according to the construction starting point, ensuring that wastewater generated by the cutting operation can be captured as soon as possible.
[0025] The drive component 3 is rotatably connected to the moving guide rail 1. The rotation of the drive component 3 drives the wastewater collection tank 2 to move linearly along the moving guide rail 1. The design of the moving guide rail 1 ensures that the wastewater collection tank 2 can move smoothly and accurately along the construction direction of the bridge 4.
[0026] As the wire saw cutting operation progresses, the wastewater collection tank 2, driven by the drive component 3, tracks the cutting position in real time to ensure that the wastewater generated during the cutting process can be collected immediately. The wastewater generated during the cutting process flows naturally to the bottom of the bridge 4 under the action of gravity and enters the tank through the inlet of the wastewater collection tank 2.
[0027] Furthermore, the drive component 3 is only installed on the moving guide rail 1 on one side, and the driven component slides passively on the other side. When the drive component 3 rotates and drives the wastewater collection tank 2 to move linearly, the passive component moves linearly under the drive of the wastewater collection tank 2. Specifically, the passive component includes a rolling guide rail and a rolling wheel. The rolling wheel and the horizontal support rod 23 are rotatably connected, and the rolling guide rail and the rolling wheel are connected in a rolling manner.
[0028] In summary, this application uses the drive component 3 to move the wastewater collection tank 2 along the guide rail, thereby achieving real-time tracking of the cutting operation point and ensuring that the wastewater can be collected as soon as possible, avoiding the disorderly flow and diffusion of wastewater. The combination of the drive component 3 and the moving guide rail 1 enables the wastewater collection tank 2 to be dynamically adjusted according to construction needs, adapting to different construction environments and schedules.
[0029] In one embodiment, the movable guide rail 1 includes several straight toothed guide rails 11; the movable guide rail 1 is composed of several segments of straight toothed guide rails 11, and each segment of straight toothed guide rail 11 has several mounting holes 111 on both sides. The design of these mounting holes 111 allows the straight toothed guide rail 11 to be detachably connected to the bridge 4 structure by bolts. During the construction preparation stage, according to the construction starting point and the initial construction scope, the first segment of straight toothed guide rail 11 is anchored to the bridge 4 by bolts. The drive assembly 3 is rotatably connected to the straight toothed guide rail 11. After the drive assembly 3 is started, the power generated by it is transmitted through the transmission mechanism. The wastewater collection tank 2 is transferred to the straight toothed guide rail 11 so that it can move linearly along the straight toothed guide rail 11. As the construction continues, when the wastewater collection tank 2 moves to the end of the laid straight toothed guide rail 11, the construction personnel will anchor the new straight toothed guide rail 11 section to the bridge 4 with bolts according to the construction progress and the needs of the cutting operation, and connect it with the laid straight toothed guide rail 11. By dynamically laying the straight toothed guide rail 11, the continuous movement of the wastewater collection tank 2 and the collection of wastewater are ensured throughout the construction process, avoiding collection interruption or efficiency reduction due to insufficient guide rails.
[0030] In summary, the spur tooth guide rail 11 consists of several sections, each of which can be installed and disassembled independently, realizing the modular design of the device. This allows the device to be flexibly adjusted according to different bridge structures and construction requirements, improving the device's versatility and flexibility. As the construction progresses, the spur tooth guide rail 11 can be gradually laid to unconstructed areas, ensuring the continuous movement and wastewater collection of the wastewater collection tank 2 throughout the construction process. This avoids the collection blind spots caused by the fixed guide rail length limitation of traditional devices. By dynamically laying the spur tooth guide rail 11, the continuous movement and wastewater collection of the wastewater collection tank 2 throughout the construction process are ensured, improving construction efficiency and quality.
[0031] In one embodiment, the drive assembly 3 includes a rotating shaft 31, a circular tooth 32, and a rotating handle 33. The rotating shaft 31, rotating handle 33, and circular tooth 32 are coaxially connected. The circular tooth 32 meshes with the straight tooth guide rail 11. The rotation of the rotating handle 33 drives the circular tooth 32 to move along the straight tooth guide rail 11. When the circular tooth 32 matches the tooth profile of the straight tooth guide rail 11, the rotation of the rotating shaft 31 will drive the circular tooth 32 to roll along the tooth groove of the straight tooth guide rail 11. By rotating the handle 33, torque is applied to the rotating shaft 31, thereby driving the circular tooth 32 to rotate. Due to the meshing of the circular tooth 32 with the straight tooth guide rail 11, the rotational motion of the circular tooth 32 is converted into linear motion along the straight tooth guide rail 11.
[0032] In one embodiment, the movable guide rail 1 includes a support frame 12, which is fixedly mounted on both sides of the spur tooth guide rail 11 and perpendicular to the spur tooth guide rail 11. This arrangement ensures that the support frame 12 can provide stable support for the spur tooth guide rail 11 and the rotating shaft 31. The support frame 12 is firmly fixed to the bridge 4 structure by welding or other means, providing a solid foundation for the entire movable guide rail 1 system. A sliding groove 121 is horizontally provided on the support frame. The design of the sliding groove 121 allows the two sides of the rotating shaft 31 to slide linearly within it. The sliding groove 121 provides precise guidance for the rotating shaft 31, ensuring that the rotating shaft 31 can maintain linear motion when moving along the spur tooth guide rail 11, while limiting the displacement of the rotating shaft 31 in the vertical direction, thus enhancing the stability of the system.
[0033] The two sides of the rotating shaft 31 extend into the sliding grooves 121 on both sides of the support frame 12 and are slidably connected with the sliding grooves 121. This connection method allows the rotating shaft 31 to move smoothly in a straight line along the spur tooth guide rail 11 under the constraint of the sliding grooves 121. When the rotating handle 33 or the mechanical drive source applies torque to the rotating shaft 31, the rotating shaft 31, guided by the sliding grooves 121, drives the round teeth 32 to roll along the spur tooth guide rail 11, thereby driving the wastewater collection tank 2 to move.
[0034] In one embodiment, the wastewater collection tank 2 includes a water guiding section 21 and a collection section 22. The water guiding section 21 is the front end of the wastewater collection tank 2, and its side near the bridge deck is inclined to form a flow guiding surface. The flow guiding surface is used to receive wastewater generated in the construction area to ensure that the wastewater can be effectively collected. The collection section 22 is located at the rear end of the water guiding section 21 and is fixedly connected to the water guiding section 21. The main function of the collection section 22 is to receive and store the wastewater guided by the water guiding section 21. During the construction process, after the wastewater is generated, due to the inclination of the water guiding section 21, the wastewater flows into the water. The wastewater is inclined and flows along the guide surface of the guide section 21 under the action of gravity, and is guided to the collection section 22. After receiving the wastewater from the guide section 21, the collection section 22 stores it in its internal space to prevent the wastewater from overflowing or leaking. The wastewater collection tank 2 can move along the moving guide rail 1 under the drive of the drive component 3, and track the construction position in real time to ensure that the wastewater can be collected in a timely manner. In addition, a discharge port is added to the bottom or side of the collection section 22 to facilitate the discharge of wastewater to the designated treatment or storage location.
[0035] In one embodiment, the wastewater collection tank 2 further includes a horizontal support rod 23, which is located at the bottom of the water guiding part 21 and adopts a square design. The square support rod provides a large contact area and a stable support structure. The main function of the horizontal support rod 23 is to ensure that the water guiding part 21 remains horizontal during movement. The horizontal support rod 23 is rotatably connected to the rotating shaft 31, that is, the horizontal support rod 23 can rotate relative to the rotating shaft 31. The horizontal support rod 23 is subject to gravity and remains horizontal. Thus, the wastewater collection tank 2 can move horizontally and linearly with the rotation of the drive component 3, thereby collecting the wastewater generated during construction along the construction direction.
[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A bridge construction under-construction protection device, characterized in that, It includes a movable guide rail, a wastewater collection tank, and a drive assembly; the movable guide rail is detachably installed at both ends of the bridge, and the wastewater collection tank is installed at the bottom of the bridge to collect wastewater generated from cutting the bridge; the wastewater collection tank spans the bottom of the bridge and is connected to the drive assembly installed on the movable guide rail, the drive assembly is rotatably connected to the movable guide rail, and the rotation of the drive assembly drives the wastewater collection tank to move along the direction of the movable guide rail.
2. The bridge construction bottom protection device according to claim 1, characterized in that, The movable guide rail includes several straight toothed guide rails; several mounting holes are provided on both sides of the straight toothed guide rails, and any one of the mounting holes is engaged with a bolt to detachably anchor the straight toothed guide rail to the bridge; the straight toothed guide rails in the unconstructed areas are laid as the construction progresses.
3. A bridge construction under-protection device according to claim 2, characterized in that, The drive assembly includes a rotating shaft, a circular gear, and a rotating handle; the rotating shaft, the rotating handle, and the circular gear are coaxially connected, the circular gear meshes with the straight tooth guide rail, and the rotation of the rotating handle drives the circular gear to move along the straight tooth guide rail.
4. A bridge construction under-protection device according to claim 3, characterized in that, The movable guide rail includes a support frame, which is fixedly disposed on both sides of the spur tooth guide rail and is perpendicular to the spur tooth guide rail; the support frame is horizontally provided with a sliding groove, and the two sides of the rotating shaft are slidably connected to the sliding grooves on both sides respectively.
5. A bridge construction under-protection device according to claim 4, characterized in that, The wastewater collection tank includes a water guiding section and a collection section; the water guiding section and the collection section are fixedly connected, and the water guiding section is inclined to guide wastewater to the collection section.
6. A bridge construction under-protection device according to claim 5, characterized in that, The wastewater collection tank also includes a horizontal support rod, which is located at the bottom of the water guide section. The horizontal support rod is square and is used to keep the water guide section horizontal during movement. The horizontal support rod is also rotatably connected to the rotating shaft.