Concrete guardrail maintenance device

Abstract

The present invention provides a concrete guardrail maintenance device, which relates to the technical field of concrete guardrail maintenance, and includes a vehicle body, a driving mechanism, a first watering mechanism, and a second watering mechanism; the driving mechanism is used to drive the vehicle body to move; the first watering mechanism is arranged at the bottom of the vehicle body, and is used for watering and maintaining the top of the concrete guardrail; the number of the second watering mechanisms is multiple, and the multiple second watering mechanisms are arranged on both sides perpendicular to the moving direction of the vehicle body, and are used for watering and maintaining the two sides of the concrete guardrail. In the process of the driving mechanism driving the vehicle body to move, the first watering mechanism is used to spray water and maintain the top surface of the concrete guardrail, and at the same time, the second watering mechanism is used to spray water and maintain the two sides of the concrete guardrail. The whole process is uniformly watered to avoid shrinkage and cracking of the concrete surface, and the difficulty of maintaining the side of the concrete guardrail is solved, manpower is saved, and the degree of automation of maintenance is high.

Description

Technical Field

[0001] The invention relates to the technical field of concrete guardrail maintenance, in particular to a concrete guardrail maintenance device. Background Art

[0002] After the concrete of the bridge guardrail is poured, it needs to be watered for moisturizing and curing. In the current conventional construction method, the guardrail concrete is covered with geotextile after final setting. When watering, it is done manually with a flexible hose or a flexible hose with a nozzle. The water source can be a water truck or a water storage barrel equipped with a pressure pump. When the weather is hot and dry, the frequency of watering needs to be increased to ensure the wet environment required for the increase of concrete strength.

[0003] However, the above concrete guardrails have the following defects during maintenance: manual watering causes uneven watering, which can easily cause shrinkage and cracking on the concrete surface, which can seriously endanger the safety of the structure. Especially on the outside of the guardrail, there is no platform for operators to stand on, which makes operation and maintenance difficult. The whole process requires manual labor, which is labor-intensive and has a low degree of automation. Summary of the invention

[0004] The purpose of the present invention is to provide a concrete guardrail maintenance device to alleviate the problem that the existing concrete guardrail has uneven watering during maintenance, which easily causes shrinkage and cracking of the concrete surface, and in serious cases endangers the safety of the structure. In particular, the outside of the guardrail has no platform for operators to stand on, which makes operation difficult and maintenance inconvenient, requires manual labor throughout the process, has high labor intensity, and has a low degree of automation.

[0005] The concrete guardrail maintenance device provided by the present invention comprises a vehicle body, a driving mechanism, a first watering mechanism and a second watering mechanism;

[0006] The driving mechanism is used to drive the vehicle body to move;

[0007] The first watering mechanism is arranged at the bottom of the vehicle body and is used for watering and curing the top of the concrete guardrail;

[0008] There are multiple second watering mechanisms, and the multiple second watering mechanisms are arranged on both sides of the vehicle body perpendicular to the moving direction of the vehicle body, and are used for watering and maintaining both sides of the concrete guardrail.

[0009] Furthermore, the number of the second watering mechanisms is four, and two of the second watering mechanisms are arranged at intervals on each side of the vehicle body.

[0010] Furthermore, the concrete guardrail maintenance device includes a first hard tube connected to the vehicle body, the first hard tube extends out of both sides of the vehicle body, and the length direction of the first hard tube is perpendicular to the moving direction of the vehicle body; both ends of the first hard tube are respectively connected to a second sprinkler mechanism;

[0011] The second watering mechanism comprises an L-shaped hard pipe, a nozzle and a flow regulating valve;

[0012] One end of the L-shaped hard pipe is connected to the first hard pipe, and the other end is connected to the nozzle, and the nozzle is used to spray water to the side of the concrete guardrail;

[0013] The flow regulating valve is arranged on the L-shaped hard pipe and is used for regulating the flow of the nozzle.

[0014] Furthermore, the L-shaped hard pipe is provided with a wear-resistant wheel capable of self-rotation, and the wear-resistant wheel is used to abut against the side of the concrete guardrail.

[0015] Furthermore, a first adjustment mechanism is provided at the junction of the wear-resistant wheel and the L-shaped hard pipe so that the distance between the wear-resistant wheel and the side of the concrete guardrail can be adjusted.

[0016] Furthermore, the first hard tube is connected to the vehicle body via a height-adjustable bracket, one end of the bracket is connected to the first hard tube, and the other end of the bracket is connected to the vehicle body.

[0017] Furthermore, the first hard tube includes a fixed section and two movable sections; one movable section is connected to one end of the fixed section, and the other movable section is connected to the other end of the fixed section;

[0018] The fixed section and the movable section are connected via a detachable fastener.

[0019] Furthermore, the concrete guardrail maintenance device includes a water tank, and the water tank is connected to the first sprinkler mechanism and the second sprinkler mechanism respectively.

[0020] Furthermore, the driving mechanism includes a motor, a transmission assembly and a transmission shaft;

[0021] The output end of the motor is connected to the transmission shaft through the transmission assembly, and tires are connected to both ends of the transmission shaft.

[0022] Furthermore, the concrete guardrail maintenance device includes a power supply, and the driving mechanism is connected to the power supply.

[0023] The concrete guardrail maintenance device provided by the present invention includes a vehicle body, a driving mechanism, a first watering mechanism and a second watering mechanism; the driving mechanism is used to drive the vehicle body to move; the first watering mechanism is arranged at the bottom of the vehicle body, and is used for watering and maintaining the top of the concrete guardrail; the number of the second watering mechanisms is multiple, and the multiple second watering mechanisms are arranged on both sides perpendicular to the moving direction of the vehicle body, and are used for watering and maintaining the two sides of the concrete guardrail. In the process of the driving mechanism driving the vehicle body to move, the first watering mechanism is used to spray water on the top surface of the concrete guardrail for maintenance, and at the same time, the second watering mechanism is used to spray water on both sides of the concrete guardrail for maintenance. The whole process is uniformly watered to avoid shrinkage and cracking of the concrete surface, and the difficulty of maintaining the side of the concrete guardrail is solved, manpower is saved, and the degree of automation of maintenance is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the structure of a concrete guardrail maintenance device provided by an embodiment of the present invention;

[0026] Figure 2 for Figure 1 A magnified view of part A in FIG.

[0027] Figure 3 for Figure 1 A magnified view of part B in FIG.

[0028] Figure 4 A side view of a concrete guardrail maintenance device provided by an embodiment of the present invention;

[0029] Figure 5 A structural diagram of a wear-resistant wheel bracket of a concrete guardrail maintenance device provided in an embodiment of the present invention;

[0030] Figure 6 A structural diagram of a bracket of a concrete guardrail maintenance device provided by an embodiment of the present invention;

[0031] Figure 7 A structural diagram of a driving mechanism of a concrete guardrail maintenance device provided in an embodiment of the present invention;

[0032] Figure 8 A layout diagram of an external water pipe provided for an embodiment of the present invention;

[0033] Fig. 9 The present invention is a schematic diagram of the operation of a concrete guardrail maintenance device provided in an embodiment of the present invention.

[0034] Icons: 10-concrete guardrail maintenance device; 20-concrete guardrail; 30-steel wire; 40-external water pipe; 100-car body; 110-bracket; 111-base; 112-body; 113-arc-shaped clamping structure; 120-first hard tube; 121-movable section; 122-fixed section; 123-detachable fastener; 200-driving mechanism; 210-tire; 220-transmission shaft; 230-second gear; 240 -first gear; 250-motor; 310-vertical nozzle; 320-flow control valve; 410-nozzle; 420-flow regulating valve; 430-L-type hard pipe; 431-vertical pipe; 432-horizontal pipe; 510-wear-resistant wheel; 520-wear-resistant wheel bracket; 521-chute; 530-screw; 540-nut; 600-water tank; 610-water source interface; 620-flexible water pipe; 700-battery. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] like Figure 1-Figure 9 As shown, the concrete guardrail maintenance device 10 provided by the present invention includes a vehicle body 100, a driving mechanism 200, a first sprinkler mechanism and a second sprinkler mechanism.

[0037] The driving mechanism 200 is used to drive the vehicle body 100 to move; the first sprinkler mechanism is arranged at the bottom of the vehicle body 100 and is used for sprinkler maintenance on the top of the concrete guardrail 20.

[0038] The first sprinkler mechanism includes a vertical sprinkler 310 , which is connected to a water storage tank 600 via a connecting water pipe and is used to sprinkle water onto the top surface of the concrete guardrail 20 . A flow control valve 320 may be provided on the connecting water pipe to control the sprinkler flow rate of the vertical sprinkler 310 .

[0039] There may be multiple vertical nozzles 310 , which are evenly arranged at the bottom of the vehicle body 100 .

[0040] There are multiple second watering mechanisms, which are arranged on both sides of the vehicle body 100 perpendicular to the moving direction of the vehicle body 100 and are used for watering and maintaining both sides of the concrete guardrail 20 .

[0041] While the driving mechanism 200 drives the vehicle body 100 to move, the first sprinkler mechanism is used to sprinkle water on the top surface of the concrete guardrail 20 for maintenance. At the same time, the second sprinkler mechanism is used to sprinkle water on both sides of the concrete guardrail 20 for maintenance. The entire process is watered evenly to avoid shrinkage and cracking of the concrete surface, solve the difficulties in maintaining the side of the concrete guardrail 20, save manpower, and have a high degree of automation in maintenance.

[0042] The driving mechanism 200 drives the vehicle body 100 to move on the surface of the concrete guardrail 20 along the length direction thereof, so that the concrete guardrail maintenance device 10 can perform comprehensive maintenance on the entire concrete guardrail 20 .

[0043] Furthermore, the number of the second watering mechanisms is four, and two second watering mechanisms are arranged at intervals on each side of the vehicle body 100 .

[0044] Specifically, the concrete guardrail maintenance device 10 includes four second watering mechanisms, two of which are arranged on each side of the vehicle body 100, and two of the two watering mechanisms are arranged at intervals.

[0045] In this embodiment, two second sprinkler mechanisms are arranged on each side of the vehicle body 100, one second sprinkler mechanism is arranged at the front end of the vehicle body 100, and the other second sprinkler mechanism is arranged at the rear end of the vehicle body 100, that is, a second sprinkler mechanism is respectively arranged at the left front, left rear, right front and right rear of the vehicle body 100. When the vehicle body 100 is moving, all positions on both sides of the concrete side guard can be maintained in all directions.

[0046] Furthermore, the concrete guardrail maintenance device 10 includes a first hard tube 120 connected to the vehicle body 100, the first hard tube 120 extends out of both sides of the vehicle body 100, and the length direction of the first hard tube 120 is perpendicular to the moving direction of the vehicle body 100; a second sprinkler mechanism is respectively connected to both ends of the first hard tube 120.

[0047] The second watering mechanism includes an L-shaped hard pipe 430 , a nozzle 410 and a flow regulating valve 420 .

[0048] One end of the L-shaped hard pipe 430 is connected to the first hard pipe 120 , and the other end is connected to the nozzle 410 . The nozzle 410 is used to spray water to the side of the concrete guardrail 20 .

[0049] The flow regulating valve 420 is disposed on the L-shaped hard pipe 430 and is used to adjust the flow rate of the nozzle 410 .

[0050] Specifically, a horizontally arranged first hard pipe 120 is connected to the vehicle body 100 , and each end of the first hard pipe 120 is connected to a second sprinkler mechanism.

[0051] One end of the first hard pipe 120 is connected to one end of the L-shaped hard pipe 430, and the other end of the L-shaped hard pipe 430 is connected to a nozzle 410, which is used to spray water to the side of the concrete guardrail 20 to maintain the side of the concrete guardrail 20 and prevent cracking.

[0052] A flow regulating valve 420 is provided on the L-shaped hard pipe 430 for adjusting the flow rate of the nozzle 410 .

[0053] The nozzle 410 is arranged in a horizontal direction, and the nozzle 410 may be a mist nozzle to increase the watering area and uniformity of the nozzle 410 .

[0054] Furthermore, a self-rotating wear-resistant wheel 510 is provided on the L-shaped hard pipe 430 , and the wear-resistant wheel 510 is used to abut against the side of the concrete guardrail 20 .

[0055] Specifically, in this embodiment, the L-shaped hard tube 430 includes a vertical tube 431 and a horizontal tube 432. The wear-resistant wheel 510 is arranged on the horizontal tube 432, and the wear-resistant wheel 510 is closer to the side of the concrete guardrail 20 relative to the nozzle 410. In actual use, the wear-resistant wheel 510 abuts against the side of the concrete guardrail 20. During the movement of the vehicle body 100, the wear-resistant wheel 510 can rotate. Because the wear-resistant wheels 510 are arranged on both sides of the vehicle body 100, that is, the wear-resistant wheels 510 on both sides of the vehicle body 100 are symmetrically arranged, when the vehicle body 100 is moved for maintenance, the vehicle body 100 is prevented from tipping over, so that the device moves along the center position of the top of the concrete guardrail 20, which can play the role of stabilizing the device.

[0056] Furthermore, a first adjustment mechanism is provided at the junction of the wear-resistant wheel 510 and the L-shaped hard pipe 430 so that the distance between the wear-resistant wheel 510 and the side of the concrete guardrail 20 can be adjusted.

[0057] Specifically, the first adjustment mechanism includes a wear-resistant wheel bracket 520 , a screw rod 530 and a nut 540 disposed on the horizontal tube 432 of the L-shaped hard tube 430 .

[0058] The wear-resistant wheel 510 is rotatably connected to the wear-resistant wheel bracket 520. The wear-resistant wheel bracket 520 is provided with a slide groove 521. The screw 530 is inserted into the slide groove 521. The nut 540 is connected to the end of the screw 530 away from the horizontal pipe 432 to connect the wear-resistant wheel bracket 520 with the horizontal pipe 432. When in use, the nut 540 can be loosened to slide the wear-resistant wheel bracket 520 to adjust the distance between the wear-resistant wheel 510 and the side of the concrete guardrail 20.

[0059] Since the wear-resistant wheel 510 only serves to maintain the vehicle body 100 at the center position of the surface of the concrete guardrail 20 during the movement of the vehicle body 100 , the force exerted on the wear-resistant wheel 510 will not be too large, and the above-mentioned adjustment mechanism can meet the support requirements for the wear-resistant wheel 510 .

[0060] Furthermore, the first hard tube 120 is connected to the vehicle body 100 via a height-adjustable bracket 110 , one end of the bracket 110 is connected to the first hard tube 120 , and the other end of the bracket 110 is connected to the vehicle body 100 .

[0061] Specifically, a bracket 110 is arranged at the junction of the first hard tube 120 and the vehicle body 100, and the bracket 110 includes a base 111, a main body 112 and an arc-shaped clamping structure 113 which are connected in sequence; the base 111 of the bracket 110 is connected to the vehicle body 100, and an arc-shaped clamping structure 113 is arranged at one end of the main body 112 away from the base 111, which is used to fix the first hard tube 120, and the length of the main body 112 can be adjusted so that the distance between the first hard tube 120 and the vehicle body 100 is adjustable, that is, the height of the first hard tube 120 can be adjusted.

[0062] The main body 112 can be a telescopic tube that is connected to each other in multiple stages; or it can be a telescopic cylinder, which can be a hydraulic cylinder or a pneumatic cylinder, as long as it can achieve telescopic effect.

[0063] The first hard tube 120 and the L-shaped hard tube 430 both have a certain strength and can withstand a certain external force without deformation during the movement of the vehicle body 100 , and can meet the requirements of supporting the wear-resistant wheel 510 .

[0064] Furthermore, the first hard tube 120 includes a fixed section 122 and two movable sections 121 ; one movable section 121 is connected to one end of the fixed section 122 , and the other movable section 121 is connected to the other end of the fixed section 122 .

[0065] The fixed section 122 and the movable section 121 are connected via a detachable fastener 123 .

[0066] Specifically, the first hard tube 120 includes a fixed section 122 and a movable section 121 connected to both ends of the fixed section 122, and the end of the movable end away from the fixed section 122 is respectively connected to a second sprinkler mechanism, that is, connected to the end of the vertical tube 431 of the L-shaped hard tube 430 away from the horizontal tube 432.

[0067] The fixed section 122 and the movable section 121 are connected via a detachable fastener 123 , which facilitates the lengthening and removal of the lower movable section 121 to meet the needs of concrete guardrails 20 of different widths.

[0068] Furthermore, the concrete guardrail maintenance device 10 includes a water tank 600, and the water tank 600 is connected to the first sprinkler mechanism and the second sprinkler mechanism respectively.

[0069] Specifically, a water source interface 610 is provided on the top of the water tank 600 to connect to external pressure water (it can be directly connected to a water truck or a water storage barrel with a pressure pump). In the front-to-back direction of the device, two flexible hoses are provided at the lower parts of both ends of the water tank 600, which are connected to the two first hard tubes 120 on the vehicle body 100 in the front-to-back direction. One end of the flexible water pipe 620 away from the water tank 600 is connected to the fixed section 122. A three-way valve can be provided on the fixed section 122, one interface is connected to the flexible water pipe 620, and the other two interfaces are connected to the fixed section 122; the other flexible water pipe 620 is connected to the fixed section 122 of the flexible water pipe 620 and the first sprinkler mechanism through a four-way form.

[0070] Furthermore, the driving mechanism 200 includes a motor 250 , a transmission assembly and a transmission shaft 220 .

[0071] The output end of the motor 250 is connected to the transmission shaft 220 through a transmission assembly, and tires 210 are connected to both ends of the transmission shaft.

[0072] Specifically, in this embodiment, the concrete guardrail maintenance device 10 includes two transmission shafts 220 disposed at the bottom of the vehicle body 100 . The two transmission shafts 220 are disposed at intervals, and a tire 210 is connected to both ends of each transmission shaft 220 .

[0073] The driving mechanism 200 includes a motor 250, a transmission assembly and a transmission shaft 220. Both ends of the transmission shaft 220 are respectively connected to a tire 210. The output end of the motor 250 drives the transmission shaft 220 to rotate through the transmission assembly, thereby enabling the vehicle body 100 to move.

[0074] The transmission assembly includes a first gear 240 and a second gear 230. The first gear 240 is connected to the output end of the motor 250, and the second gear 230 is connected to the middle of the transmission shaft 220. The first gear 240 and the second gear 230 are meshed so that the motor 250 can drive the transmission shaft 220 to rotate.

[0075] A bearing assembly is disposed at the junction of the transmission shaft 220 and the tire 210 .

[0076] The tire 210 may be a rubber tire 210 .

[0077] The vehicle body 100 moves under the drive of the driving mechanism 200. The device may also have a steering function. The implementation of the steering function is a prior art and will not be described in detail here.

[0078] It should be noted that a dual-drive mode may also be adopted, where both transmission shafts 220 are provided with a drive device.

[0079] Furthermore, the concrete guardrail maintenance device 10 includes a power supply, and the driving mechanism 200 is connected to the power supply.

[0080] Specifically, the power source can be a battery 700, which is arranged below the water tank 600 and on the vehicle body 100. The water tank 600 can be detachably connected to the vehicle body 100 to facilitate the replacement and installation of the battery 700 below it. A two-way switch is arranged next to it to enable the device to move forward and backward.

[0081] The battery 700 and the motor 250 need to be made of waterproof material.

[0082] It should be noted that the power source may not use the replaceable and rechargeable battery 700, and only a plug connected to an external power source may be provided to supply power to the device.

[0083] During watering maintenance, a steel wire 30 for hanging an external water pipe 40 can be set on the top of the guardrail to prevent the water pipe from getting tangled. The external water pipe 40 is connected and fixed to the water source interface 610 on the top of the water storage tank 600 of the device, and pressurized water is supplied. The device switch is turned on to move the device forward. When it reaches the end of the concrete guardrail 20 or the end of the external water pipe 40, the rotary switch is turned to the other side to make the device move in the opposite direction. Repeat the above process until the concrete guardrail 20 is completely wet.

[0084] In summary, the concrete guardrail maintenance device 10 provided by the present invention includes a vehicle body 100, a driving mechanism 200, a first watering mechanism and a second watering mechanism; the driving mechanism 200 is used to drive the vehicle body 100 to move; the first watering mechanism is arranged at the bottom of the vehicle body 100, and is used for watering and maintaining the top of the concrete guardrail 20, and the number of the second watering mechanisms is multiple, and the multiple second watering mechanisms are arranged on both sides perpendicular to the moving direction of the vehicle body 100, and are used for watering and maintaining the two sides of the concrete guardrail 20. In the process of the driving mechanism 200 driving the vehicle body 100 to move, the first watering mechanism is used to spray water and maintain the top surface of the concrete guardrail 20, and at the same time, the second watering mechanism is used to spray water and maintain the two sides of the concrete guardrail 20. The whole process is uniformly watered to avoid shrinkage and cracking of the concrete surface, and solves the difficulty of maintaining the side of the concrete guardrail 20, saving manpower, and the degree of automation of maintenance is high.

[0085] The concrete guardrail maintenance device 10 provided by the present invention has the following advantages:

[0086] (1) The operator only needs to connect the external pressure water source, adjust the wear-resistant wheel 510 at the bottom of the device so that it is close to the surfaces on both sides of the concrete guardrail 20, and turn on the switch. The device will then travel along the top of the concrete guardrail 20 to sprinkle water, and basically no human labor is required during the process.

[0087] (2) The device has the characteristic of uniform spreading, which can ensure that the top and both left and right sides of the concrete guardrail 20 are in a moist state, which is beneficial to the increase of concrete strength.

[0088] (3) Since the vertical nozzle 310 of the device is provided with a flow control valve 320 and the nozzle 410 is provided with a flow regulating valve 420, the water flow rate can be adjusted according to actual conditions to avoid wasting water resources.

[0089] (4) The device has a simple structure, and multiple components can be adjusted according to the characteristics of the project, with strong flexibility.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A concrete guardrail maintenance device, characterized in that: It includes a vehicle body, a driving mechanism, a first watering mechanism and a second watering mechanism; The driving mechanism is used to drive the vehicle body to move; The first watering mechanism is arranged at the bottom of the vehicle body and is used for watering and curing the top of the concrete guardrail; The number of the second watering mechanisms is multiple, and the multiple second watering mechanisms are arranged on both sides of the vehicle body perpendicular to the moving direction of the vehicle body, and are used for watering and curing both sides of the concrete guardrail; The number of the second watering mechanisms is four, and two of the second watering mechanisms are arranged at intervals on each side of the vehicle body; The concrete guardrail maintenance device comprises a first hard pipe connected to the vehicle body, the first hard pipe extends out of both sides of the vehicle body, and the length direction of the first hard pipe is perpendicular to the moving direction of the vehicle body; two ends of the first hard pipe are respectively connected to a second watering mechanism; The second watering mechanism comprises an L-shaped hard pipe and a nozzle; One end of the L-shaped hard pipe is connected to the first hard pipe, and the other end is connected to the nozzle, and the nozzle is used to spray water to the side of the concrete guardrail; The L-shaped hard pipe is provided with a wear-resistant wheel capable of self-rotation, and the wear-resistant wheel is used to abut against the side of the concrete guardrail; The second watering mechanism further includes a flow regulating valve; The flow regulating valve is arranged on the L-shaped hard pipe and is used for regulating the flow of the nozzle.

2. The concrete guardrail maintenance device according to claim 1 is characterized in that: A first adjusting mechanism is provided at the junction of the wear-resistant wheel and the L-shaped hard pipe, so that the distance between the wear-resistant wheel and the side of the concrete guardrail can be adjusted.

3. The concrete guardrail maintenance device according to claim 1 is characterized in that: The first hard tube is connected to the vehicle body via a height-adjustable bracket, one end of the bracket is connected to the first hard tube, and the other end of the bracket is connected to the vehicle body.

4. The concrete guardrail maintenance device according to claim 1, characterized in that: The first hard tube includes a fixed section and two movable sections; one movable section is connected to one end of the fixed section, and the other movable section is connected to the other end of the fixed section; The fixed section and the movable section are connected via a detachable fastener.

5. The concrete guardrail maintenance device according to claim 1, characterized in that: The concrete guardrail maintenance device comprises a water storage tank, and the water storage tank is respectively connected to the first sprinkler mechanism and the second sprinkler mechanism.

6. The concrete guardrail maintenance device according to claim 1, characterized in that: The driving mechanism comprises a motor, a transmission assembly and a transmission shaft; The output end of the motor is connected to the transmission shaft through the transmission assembly, and tires are connected to both ends of the transmission shaft.

7. The concrete guardrail maintenance device according to claim 1, characterized in that: The concrete guardrail maintenance device comprises a power supply, and the driving mechanism is connected to the power supply.

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