Bridge anti-collision guardrail spraying health maintenance device

By designing a spray curing device for bridge crash barriers, and utilizing a cantilever frame and automated control system, full-coverage maintenance of bridge crash barriers has been achieved. This solves the problems of cover falling off and high labor input in existing technologies, and improves maintenance efficiency and quality stability.

CN224578609UActive Publication Date: 2026-07-31GANSU ROAD & BRIDGE THIRD HIGHWAY ENG CO LTD
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Patent Information

Application Number
CN202521764966.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-19
Publication Date
2026-07-31
Estimated Expiration
2035-08-19

AI Technical Summary

Technical Problem

Existing bridge crash barrier maintenance methods suffer from problems such as easy falling off of coverings, difficulty in achieving full-bridge maintenance without blind spots, consumption of large amounts of human resources, lack of quantitative management, and high costs of using machinery, making it difficult to meet the high standards of structural durability required by modern bridge engineering.

Method used

Design a bridge anti-collision guardrail spray curing device, including a cantilever frame, spray pipe assembly and an automated control system. It achieves no dead angle coverage through mechanized operation, avoids collisions by using fixed guide wheels and adjustable guide wheel assembly, achieves automatic operation by electric drive wheels, and realizes automated control by combining limit switches and remote controller.

Benefits of technology

It achieves full coverage maintenance of bridge crash barriers, reduces material waste, lowers labor input, improves maintenance efficiency and quality stability, avoids safety hazards caused by falling covers, and optimizes construction efficiency and economy.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224578609U_ABST
    Figure CN224578609U_ABST
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Abstract

This utility model relates to the field of concrete curing technology in road and bridge engineering, specifically a spray curing device for bridge crash barriers. The chassis moves on the bridge deck, and the frame is fitted over the outside of the bridge crash barrier. The entire device moves along the length of the bridge crash barrier. A water pump is activated, causing water to spray onto the bridge crash barrier through spray heads, thus achieving curing. Fixed guide wheel assemblies and adjustable guide wheel assemblies guide the movement of the cantilever frame and chassis. This utility model features a stable structure, convenient installation, low material consumption, and low maintenance costs. This utility model replaces manual high-altitude laying and cover replacement processes with mechanized operations, avoiding the safety hazards of cover falling when bridges are high or crossing existing lines, reducing manual labor, optimizing process efficiency, and comprehensively improving the safety, economy, and quality stability of bridge crash barrier maintenance. It also facilitates automated control.
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Description

Technical Field

[0001] This utility model relates to the field of concrete curing technology in road and bridge engineering, specifically to a spray curing device for bridge crash barriers. Background Technology

[0002] In road and bridge construction, crash barriers are key structures for ensuring traffic safety, and the quality of their curing after concrete pouring directly affects the overall strength and durability of the structure. For a long time, existing technologies have generally adopted the traditional process of covering and moisturizing for curing, and maintaining environmental humidity through regular manual or simple mechanical watering.

[0003] Existing bridge crash barrier maintenance methods have significant limitations: (1) When the bridge is high or crosses an existing line, the maintenance covering is prone to fall off, posing a major safety hazard; (2) Sprinkling operations rely on manual labor or fixed mechanical devices. Due to the constraints of bridge structure and pipeline layout, it is difficult to achieve full-angle maintenance of the bridge railings, which can easily lead to local cracking. In addition, the manual laying and replacement process is complicated and consumes a lot of human resources. (3) Geotextile and other covering materials are consumable materials. Long-term use requires continuous investment and the materials are severely damaged during turnover. (4) There is a lack of effective supervision mechanism. Key parameters such as maintenance scope and frequency rely entirely on manual experience for control, making it difficult to achieve quantitative management. (5) When operating a simple mechanical curing structure, lifting equipment needs to be used frequently, which increases the cost of using the machinery and reduces the construction efficiency.

[0004] The above limitations make it difficult to meet the high standards of structural durability required by modern bridge engineering, restricting the efficiency and quality of crash barrier maintenance and becoming a technical bottleneck that urgently needs to be solved. Utility Model Content

[0005] The purpose of this utility model is to provide a bridge crash barrier spray curing device that is suitable for various construction scenarios, achieves no dead angle coverage of the crash barrier, solves the problem that the existing bridge crash barrier curing methods are difficult to fully maintain, improves the uniformity of curing, and avoids local cracking.

[0006] To achieve the above technical effects, this utility model provides a beam anti-collision guardrail spray curing device, comprising a chassis, a water tank, a cantilever frame, and a spray pipe assembly. Wheels are connected to the bottom surface of the chassis and roll onto the bridge deck. The water tank is fixedly connected to the top surface of the chassis. The cantilever frame includes two frames and reinforcing bars II. Each frame includes a horizontal bar, a long vertical bar, and a short vertical bar. The tops of the long and short vertical bars are fixedly connected to the ends of the horizontal bars, forming an "n" shape. The bottom of the long vertical bar of each frame is fixedly connected to the side wall of the chassis. The two frames are linearly arranged along the length of the chassis. Reinforcing bars II are fixedly connected at both ends between the two frames. There are three reinforcing bars II; reinforcing bars connect the horizontal bars of the two frames, the long vertical bars of the two frames, and the short vertical bars of the two frames. II. The frame is fitted onto the outside of the bridge crash barrier. Horizontal strips are positioned above the bridge crash barrier, and long vertical strips are positioned on the outer side of the bridge crash barrier facing the bridge deck. Short vertical strips are positioned on the outer side of the bridge crash barrier facing away from the bridge deck. The sprinkler assembly includes sprinkler pipes, sprinkler heads, distribution pipes, and collection pipes. A water pump is installed inside the water tank. One end of the collection pipe is connected to the water pump outlet, and the end of the collection pipe not connected to the water pump extends out of the water tank. The middle of the distribution pipe is connected to the end of the collection pipe not connected to the water pump. There are two sprinkler pipes, each connected to the inner side wall of one of the two frames. The shape of the sprinkler pipes is the same as that of the frame. One end of each of the two sprinkler pipes is connected to both ends of the distribution pipe. The ends of the two sprinkler pipes not connected to the distribution pipe are each connected to a plug. Multiple sprinkler heads are connected to each sprinkler pipe, and all the sprinkler heads face the bridge crash barrier.

[0007] Furthermore, a fixed guide wheel assembly is connected to the cantilever frame. The fixed guide wheel assembly includes a support, an axle, and a wheel. The support includes a connecting plate and two side plates, which form a "[" shape. The wheel is rotatably connected to the middle of the axle, and the two ends of the axle are respectively connected to the two side plates. The side plates are provided with holes for the axle to pass through. The wheel is rotatably connected between the two side plates. The side wall of the connecting plate away from the side plate is fixedly connected to the rib II between the vertical short strips of the two frames. The wheel is rotatably connected to the side wall of the bridge crash barrier away from the bridge surface. The rolling direction of the wheel is the same as the length direction of the bridge crash barrier.

[0008] Furthermore, the cantilever frame is connected to an adjustable guide wheel assembly, which includes studs, casters, and handles. Each vertical strip of the frame is provided with a screw hole, the stud is connected in the screw hole, the caster is fixedly connected to the end of the stud facing the bridge crash barrier, and the caster is rotatably connected to the side wall of the bridge crash barrier facing the bridge surface. The rotatable direction of the caster is the same as the length direction of the bridge crash barrier, and the handle is fixedly connected to the end of the stud facing the bridge surface.

[0009] Furthermore, the fixed guide wheel assembly is provided in multiple ways, and the multiple fixed guide wheel assemblies are linearly and evenly distributed along the length direction of the rib II between the vertical short strips of the two frames.

[0010] Furthermore, each of the vertical strips is connected to at least one adjusting guide wheel assembly.

[0011] Furthermore, the chassis includes a rectangular frame, a top plate, and ribs I. The top plate is fixedly connected to the top surface of the rectangular frame, and the water tank is fixedly connected to the top surface of the top plate. There are two ribs I, which are parallel to the shorter side strip of the rectangular frame. Each rib I is fixedly connected at both ends to the inner walls of the two longer side strips of the rectangular frame. The two ribs I are linearly and evenly distributed along the length of the rectangular frame. The wheels include driven wheels and electric drive wheels. There are four driven wheels, which are fixedly connected in a rectangle to the bottom surface of the two ribs I. Each rib I is fixedly connected to two driven wheels. The electric drive wheels are fixedly connected to the bottom surface of the top plate. Both the driven wheels and the electric drive wheels are rotatably connected to the bridge surface. The driven wheels are omnidirectional wheels.

[0012] Furthermore, a limit switch is fixedly connected to the top surface of each of the horizontal bars, and the limit switch extends out of the frame.

[0013] Furthermore, a storage battery is fixedly connected to the top surface of the top plate, and the storage battery is electrically connected to the water pump and the electric drive wheel.

[0014] Furthermore, an electrical control cabinet is fixedly connected to the top surface of the top plate. The electrical control cabinet contains control components, and the control panel of the electrical control cabinet is equipped with a water pump control button, an electric drive wheel control knob, and a voltmeter.

[0015] Furthermore, a filter is connected to the inlet end of the water pump; a water filling hole is also connected to the top surface of the water tank, and a cover is connected to the water filling hole.

[0016] The beneficial effects of this utility model are as follows: During use, the chassis moves on the bridge deck, the frame covers the outside of the bridge crash barrier, and the entire device moves along the length of the bridge crash barrier. The water pump is activated, causing water to spray onto the bridge crash barrier through the sprinkler heads, thus achieving the maintenance of the bridge crash barrier. The fixed guide wheel assembly and the adjustable guide wheel assembly guide the movement of the cantilever frame and chassis, while preventing the cantilever frame from touching the bridge crash barrier. The adjustable guide wheel assembly adapts to different curved surfaces on the sidewalls of the bridge crash barrier facing the bridge deck. The electric drive wheels enable automatic operation of this utility model on the bridge deck. Considering that bridge crash barriers are not necessarily installed in a straight line, driven wheels are provided to ensure that this invention can run smoothly along the length of the bridge crash barrier. This invention has a stable structure, is easy to install, has low material consumption and low maintenance costs, and does not require continuous input of consumable materials such as geotextiles. This invention replaces the manual process of laying and replacing covers at heights with mechanized operations, avoiding the safety hazard of covers falling off when the bridge is high or crosses existing lines, reducing manual input, optimizing process efficiency, and comprehensively improving the safety, economy and quality stability of bridge crash barrier maintenance; it also facilitates automated control. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the chassis structure of this utility model; Figure 3 This is a structural schematic diagram of the cantilever frame of this utility model; Figure 4 This is a schematic diagram of the frame of this utility model; Figure 5 This is a structural schematic diagram of the fixed guide wheel assembly of this utility model; Figure 6 This is a schematic diagram of the structure of the adjusting guide wheel assembly of this utility model; Figure 7 This is a schematic diagram of the utility model in use.

[0018] In the diagram: 1. Chassis; 101. Rectangular frame; 102. Top plate; 103. Rib I; 2. Water tank; 3. Battery; 4. Electrical control cabinet; 5. Cantilever frame; 501. Frame body; 5011. Horizontal strip; 5012. Vertical long strip; 5013. Vertical short strip; 5014. Screw hole; 502. Rib II; 6. Sprinkler pipe assembly; 601. Sprinkler water pipe; 602. Sprinkler head; 603. Divider pipe; 604. Collector pipe; 7. Limit switch; 8. Driven wheel; 9. Electric drive wheel; 10. Fixed guide wheel assembly; 1001. Support; 1002. Axle; 1003. Rotary wheel; 1011. Connecting plate; 1012. Side plate; 11. Adjustable guide wheel assembly; 1101. Stud; 1102. Caster; 1103. Handle. Detailed Implementation

[0019] like Figures 1-7As shown, this utility model discloses a beam anti-collision guardrail spray curing device, which includes a chassis 1, a water tank 2, a cantilever frame 5, and a spray pipe assembly 6. Wheels are connected to the bottom surface of the chassis 1, and the wheels are rolled onto the bridge deck. The water tank 2 is fixedly connected to the top surface of the chassis 1. The cantilever frame 5 includes a frame body 501 and reinforcing bars II 502. Two frame bodies 501 are provided, each including a horizontal bar 5011, a vertical long bar 5012, and a vertical short bar 5013. The top ends of the vertical long bar 5012 and the top ends of the vertical short bar 5013 are respectively fixedly connected to the horizontal bar 5011. At both ends of strip 5011, horizontal strips 5011, vertical long strips 5012, and vertical short strips 5013 form an "n" shape. The bottom end of the vertical long strip 5012 of each frame 501 is fixedly connected to the side wall of the chassis 1. The two frames 501 are linearly arranged along the length of the chassis 1. Rib II 502 is fixedly connected at both ends between the two frames 501. There are three ribs II 502: one between the horizontal strips 5011 of the two frames 501, one between the vertical long strips 5012 of the two frames 501, and one between the vertical short strips 5013 of the two frames 501. The frame 501 is fitted over the outer side of the bridge crash barrier, with ribs II 502 connected. Horizontal strips 5011 are positioned above the bridge crash barrier, long vertical strips 5012 are positioned on the outer side of the bridge crash barrier facing the bridge deck, and short vertical strips 5013 are positioned on the outer side of the bridge crash barrier facing away from the bridge deck. The sprinkler assembly 6 includes a sprinkler pipe 601, a sprinkler head 602, a distribution pipe 603, and a collection pipe 604. A water pump is installed inside the water tank 2. One end of the collection pipe 604 is connected to the water pump outlet, and the other end of the collection pipe 604, not connected to the water pump, extends out into the water tank. Box 2, the middle part of the water distribution pipe 603 is connected to the end of the water collection pipe 604 that is not connected to the water pump. There are two spray pipes 601, which are respectively connected to the inner side walls of the two frames 501. The shape of the spray pipes 601 is the same as that of the frames 501. One end of the two spray pipes 601 is connected to both ends of the water distribution pipe 603. The ends of the two spray pipes 601 that are not connected to the water distribution pipe 603 are all connected to plugs. Each spray pipe 601 is connected to multiple spray heads 602, and the multiple spray heads 602 are all facing the bridge anti-collision guardrail.

[0020] When in use, the chassis 1 moves on the bridge deck, the frame 501 covers the outside of the bridge crash barrier, and the entire device moves along the length of the bridge crash barrier. The water pump is started so that water is sprayed onto the bridge crash barrier through the spray head 602 to achieve the maintenance of the bridge crash barrier.

[0021] Considering the risk of the cantilever frame 5 colliding with the bridge's crash barrier when the chassis 1 moves on the bridge surface, to eliminate this risk, a fixed guide wheel assembly 10 is connected to the cantilever frame 5 of this utility model. The fixed guide wheel assembly 10 includes a support 1001, a wheel axle 1002, and a rotating wheel 1003. The support 1001 includes a connecting plate 1011 and two side plates 1012, which form a "[" shape. The rotating wheel 1003 is rotatably connected to the wheel axle 1002. In the middle, the two ends of the axle 1002 are respectively connected to the two side plates 1012. The side plates 1012 are provided with holes for the axle 1002 to pass through. The rotating wheel 1003 is rotatably connected between the two side plates 1012. The connecting plate 1011 is fixedly connected to the rib II 502 between the vertical short strips 5013 of the two frames 501 on the side wall away from the side plate 1012. The rotating wheel 1003 is rotatably connected to the side wall of the bridge crash barrier away from the bridge surface. The rolling direction of the rotating wheel 1003 is the same as the length direction of the bridge crash barrier. An adjustable guide wheel assembly 11 is connected to the cantilever frame 5. The adjustable guide wheel assembly 11 includes a stud 1101, a caster 1102, and a handle 1103. Each vertical strip 5012 of the frame 501 is provided with a screw hole 5014. The stud 1101 is connected in the screw hole 5014. The caster 1102 is fixedly connected to the end of the stud 1101 facing the bridge crash barrier. The caster 1102 is rotatably connected to the side wall of the bridge crash barrier facing the bridge surface. The rotatable direction of the caster 1102 is the same as the length direction of the bridge crash barrier. The handle 1103 is fixedly connected to the end of the stud 1101 facing the bridge surface. Multiple fixed guide wheel assemblies 10 are provided. The multiple fixed guide wheel assemblies 10 are linearly and evenly distributed along the length direction of the rib II 502 between the vertical short strips 5013 of the two frames 501. At least one adjustable guide wheel assembly 11 is connected to each vertical strip 5012.

[0022] This invention provides guidance for the movement of the cantilever frame 5 and chassis 1 through the fixed guide wheel assembly 10 and the adjustable guide wheel assembly 11, while preventing the cantilever frame 5 from touching the bridge crash barrier. Considering that the side wall of the bridge crash barrier facing away from the bridge surface is flat, the fixed guide wheel assembly 10 is set to cooperate with the side wall of the bridge crash barrier facing away from the bridge surface. Considering that the side wall of the bridge crash barrier facing the bridge surface is a curved surface with a shape, the adjustable guide wheel assembly 11 is set to adapt to different curved surfaces on the side wall of the bridge crash barrier facing the bridge surface. Multiple adjustable guide wheel assemblies 11 are adjusted individually to adapt to different curved surface heights. In use, the handle 1103 drives the stud 1101 to rotate, thereby adjusting the extension length of the caster 1102, so that the caster 1102 and the swivel wheel 1003 are both rolled and connected to the bridge crash barrier.

[0023] It should be noted that the rotation of stud 1101 will drive the caster 1102 to rotate. In order to ensure that the rolling direction of caster 1102 is the same as the length direction of the bridge guardrail, caster 1102 should be a swivel caster. In addition, when stud 1101 is rotating, when caster 1102 is about to touch the bridge guardrail, the staff should hold caster 1102 to position it.

[0024] In this embodiment, two fixed guide wheel assemblies 10 are provided; three adjustable guide wheel assemblies 11 are provided. One of the two vertical strips 5012 is connected to two adjustable guide wheel assemblies 11, and the other is connected to one adjustable guide wheel assembly 11. This arrangement is mainly to avoid the water tank 2 and prevent the adjustable guide wheel assembly 11 from interfering with the water tank 2. In actual application of this utility model, the adjustable guide wheel assembly 11 can be flexibly set according to the actual situation of the vehicle.

[0025] The chassis 1 includes a rectangular frame 101, a top plate 102, and ribs I 103. The top plate 102 is fixedly connected to the top surface of the rectangular frame 101, and the water tank 2 is fixedly connected to the top surface of the top plate 102. There are two ribs I 103, which are parallel to the shorter side strip of the rectangular frame 101. Each rib I 103 is fixedly connected at both ends to the inner walls of the two longer side strips of the rectangular frame 101. The two ribs I 103 are linearly and evenly distributed along the length of the rectangular frame 101. The wheels include driven wheels 8 and electric drive wheels 9. There are four driven wheels 8, which are fixedly connected in a rectangle to the bottom surface of the two ribs I 103. Each rib I 103 is fixedly connected to two driven wheels 8. The electric drive wheels 9 are fixedly connected to the bottom surface of the top plate 102. Both driven wheels 8 and electric drive wheels 9 are rolled on the bridge surface. The driven wheels 8 are omnidirectional wheels.

[0026] The electric drive wheel 9 enables the automatic operation of this utility model on the bridge deck. Considering that the bridge crash barrier is not necessarily set in a straight line, the driven wheel 8 is set to ensure that this utility model can run smoothly along the length of the bridge crash barrier.

[0027] The water pump inlet is connected to a filter; the water tank 2 is also connected to a water inlet on its top surface, and a cover is attached to the water inlet.

[0028] The filter is installed to prevent silt or impurities in the water tank from affecting the operation of the water pump.

[0029] Each horizontal strip 5011 has a limit switch 7 fixedly connected to its top surface, and the limit switch 7 extends out of the frame 501; a storage battery 3 is fixedly connected to the top surface of the top plate 102, and the storage battery 3 is electrically connected to the water pump and the electric drive wheel 9; an electrical control cabinet 4 is fixedly connected to the top surface of the top plate 102, and control components are installed inside the electrical control cabinet 4. The panel of the electrical control cabinet 4 is equipped with a water pump control button, an electric drive wheel 9 control knob and a voltmeter.

[0030] This invention enables the start / stop control of the water pump relay and the forward / reverse movement of the electric drive wheel 9 through switches and control components inside the control box. The control cabinet 4 panel is equipped with a water pump control button, an electric drive wheel 9 control knob, and a voltmeter. The electric drive wheel 9 control knob is used to adjust the rotation speed of the electric drive wheel 9, thereby controlling the operating speed of this invention to adapt to different maintenance conditions. The voltmeter is used to monitor the remaining battery power in real time, prompting operators to replenish power promptly; a digital display voltmeter is generally recommended. The water pump control button is used to control the start / stop of the water pump.

[0031] The limit switch 7 facilitates automatic control of the operation of this utility model. Limit bars are set at specific positions on the bridge crash barrier, and there should generally be a gap between the limit bars to allow for the maintenance of the bridge crash barrier. When the utility model moves to the position of the limit bar, the limit switch 7 contacts the limit bar, triggering the limit switch 7 signal. After receiving the limit switch 7 signal, the control element in the electrical control cabinet 4 controls the electric drive wheel 9 to reverse, thereby causing the utility model to turn back. When it turns back to the limit bar position on the other side, the above operation is triggered again, thereby realizing the cyclical operation of the utility model and realizing the cyclical maintenance of the bridge crash barrier within the specified range.

[0032] In addition, this invention can be equipped with a remote controller and a signal receiver to achieve remote control.

Claims

1. A bridge crash barrier spray curing device, characterized in that: The system includes a chassis (1), a water tank (2), a cantilever frame (5), and a sprinkler pipe assembly (6). Wheels are connected to the bottom surface of the chassis (1), and the wheels roll on the bridge surface. The water tank (2) is fixedly connected to the top surface of the chassis (1). The cantilever frame (5) includes a frame (501) and reinforcing bars (502). Two frames (501) are provided, each including a horizontal bar (5011), a vertical long bar (5012), and a vertical short bar (5013). The top ends of the vertical long bar (5012) and the vertical short bar (5013) are respectively fixedly connected to the two ends of the horizontal bar (5011). The vertical strips (5011), (5012), and (5013) form an "n" shape. The bottom end of the vertical strip (5012) of each frame (501) is fixedly connected to the side wall of the chassis (1). The two frames (501) are linearly arranged along the length of the chassis (1). The two ends of the rib II (502) are fixedly connected between the two frames (501). There are three rib II (502). Ribs are connected between the horizontal strips (5011) of the two frames (501), between the vertical strips (5012) of the two frames (501), and between the vertical strips (5013) of the two frames (501). Strip II (502), frame (501) covers the outside of the bridge crash barrier, horizontal strip (5011) is set above the bridge crash barrier, vertical long strip (5012) is set on the outside of the side wall of the bridge crash barrier facing the bridge surface, vertical short strip (5013) is set on the outside of the side wall of the bridge crash barrier away from the bridge surface, the sprinkler pipe assembly (6) includes a sprinkler pipe (601), a sprinkler head (602), a water distribution pipe (603) and a water collection pipe (604), a water pump is installed inside the water tank (2), one end of the water collection pipe (604) is connected to the water pump outlet, and the end of the water collection pipe (604) not connected to the water pump extends out of the water tank (2). The middle part of the water distribution pipe (603) is connected to the end of the water collection pipe (604) that is not connected to the water pump. There are two spray pipes (601). The two spray pipes (601) are respectively connected to the inner side walls of the two frames (501). The shape of the spray pipes (601) is the same as that of the frames (501). One end of the two spray pipes (601) is connected to both ends of the water distribution pipe (603). The end of the two spray pipes (601) that is not connected to the water distribution pipe (603) is connected to a plug. Each spray pipe (601) is connected to multiple spray heads (602). The multiple spray heads (602) are all facing the bridge anti-collision guardrail.

2. The bridge anti-collision guardrail spray life-supporting device according to claim 1, characterized in that: The cantilever frame (5) is connected to a fixed guide wheel assembly (10). The fixed guide wheel assembly (10) includes a support (1001), a wheel axle (1002), and a rotating wheel (1003). The support (1001) includes a connecting plate (1011) and two side plates (1012). The connecting plate (1011) and the two side plates (1012) form a "[" shape. The rotating wheel (1003) is rotatably connected to the middle of the wheel axle (1002). The two ends of the wheel axle (1002) are respectively connected to the two side plates. On (1012), the side plate (1012) is provided with a hole for the wheel axle (1002) to pass through. The wheel (1003) is rotatably connected between the two side plates (1012). The connecting plate (1011) is fixedly connected to the side wall away from the side plate (1012) on the rib II (502) between the vertical short strips (5013) of the two frames (501). The wheel (1003) is rotatably connected to the side wall away from the bridge surface of the bridge crash barrier. The rolling direction of the wheel (1003) is the same as the length direction of the bridge crash barrier.

3. The bridge anti-collision guardrail spray life-supporting device according to claim 2, characterized in that: The cantilever frame (5) is connected to an adjustable guide wheel assembly (11). The adjustable guide wheel assembly (11) includes a stud (1101), a caster (1102) and a handle (1103). Each frame (501) has a screw hole (5014) on its vertical strip (5012). The stud (1101) is connected in the screw hole (5014). The caster (1102) is fixedly connected to the end of the stud (1101) facing the bridge crash barrier. The caster (1102) is rotatably connected to the side wall of the bridge crash barrier facing the bridge surface. The rotatable direction of the caster (1102) is the same as the length direction of the bridge crash barrier. The handle (1103) is fixedly connected to the end of the stud (1101) facing the bridge surface.

4. The bridge anti-collision guardrail spray life-supporting device according to claim 2, characterized in that: The fixed guide wheel assembly (10) is provided in multiple ways, and the multiple fixed guide wheel assemblies (10) are linearly and evenly distributed along the length direction of the rib II (502) between the vertical short strips (5013) of the two frames (501).

5. The bridge anti-collision guardrail spray life-supporting device according to claim 3, characterized in that: Each of the vertical strips (5012) is connected to at least one adjusting guide wheel assembly (11).

6. The bridge anti-collision guardrail spray life-supporting device according to any one of claims 1-5, characterized in that: The chassis (1) includes a rectangular frame (101), a top plate (102), and ribs I (103). The top plate (102) is fixedly connected to the top surface of the rectangular frame (101), and the water tank (2) is fixedly connected to the top surface of the top plate (102). There are two ribs I (103), which are parallel to the shorter side strip of the rectangular frame (101). The two ends of each rib I (103) are fixedly connected to the inner walls of the two longer side strips of the rectangular frame (101). I (103) is linearly and evenly distributed along the length of the rectangular frame (101). The wheel includes a driven wheel (8) and an electric drive wheel (9). There are four driven wheels (8). The four driven wheels (8) are fixedly connected in a rectangle to the bottom surface of two ribs I (103). Each rib I (103) is fixedly connected to two driven wheels (8). The electric drive wheel (9) is fixedly connected to the bottom surface of the top plate (102). Both the driven wheels (8) and the electric drive wheel (9) are rolled on the bridge surface. The driven wheels (8) are universal wheels.

7. The bridge anti-collision guardrail spray life-supporting device according to claim 6, characterized in that: Each of the horizontal bars (5011) is fixedly connected to a limit switch (7) on its top surface, and the limit switch (7) extends out of the frame (501).

8. The bridge anti-collision guardrail spray life-supporting device according to claim 7, characterized in that: A storage battery (3) is fixedly connected to the top surface of the top plate (102). The storage battery (3) is electrically connected to the water pump and to the electric drive wheel (9).

9. The bridge anti-collision guardrail spray life-supporting device according to claim 8, characterized in that: An electrical control cabinet (4) is fixedly connected to the top surface of the top plate (102). The electrical control cabinet (4) contains control components. The panel of the electrical control cabinet (4) is equipped with a water pump control button, an electric drive wheel (9) control knob, and a voltmeter.

10. The bridge crash barrier spray health maintenance device of claim 1, wherein: The water pump inlet is connected to a filter; the water tank (2) is also connected to a water inlet hole on the top surface, and a cover is connected to the water inlet hole.