A device for removing old coating on the surface of a highway guardrail

Abstract

The utility model relates to the technical field of highway guardrail plate maintenance, disclose a kind of highway guardrail plate surface old coating removal equipment, including drive car, the top wall front side of drive car is provided with extraction mechanism, the top wall rear side of drive car is fixedly connected with vertical plate, the left side front and rear end of vertical plate is fixedly connected with hydraulic rod, the left end of hydraulic rod is fixedly connected with adjusting plate, the left side front and rear end of adjusting plate is fixedly connected with elastic scraper, the top wall rear side of adjusting plate is provided with cleaning assembly, the right side of adjusting plate is provided with dismounting mechanism. In the utility model, coating chips are generated by extracting airflow and cleaning with the extraction head, and the treatment box is used to uniformly process the coating chips. Under the displacement of the adjusting plate, the surface of the guardrail is cleaned automatically, and the removed coating is not well collected, which avoids environmental pollution.

Description

Technical Field

[0001] This utility model relates to the field of highway guardrail maintenance technology, and in particular to a device for removing old coatings from the surface of highway guardrails. Background Technology

[0002] Highway guardrails are mainly composed of corrugated beams, posts, anti-collision blocks, and bolts. The corrugated beams are typically made of hot-dip galvanized steel or aluminum-zinc coated steel. Their corrugated structure allows them to absorb collision energy through deformation when impacted by a vehicle, changing the vehicle's direction and preventing it from running off the road or into the oncoming lane. The posts, as supporting structures, are generally round or square tubes, fixed to the roadbed through pre-embedding, driving, or flanges, providing a stable foundation for the corrugated beams and ensuring the overall stability of the guardrail. Under prolonged sun exposure, the coating on the guardrail surface ages and peels, affecting its protective performance and aesthetics. Currently, the maintenance needs of highway guardrails are increasing, especially the removal of old surface coatings.

[0003] A search revealed Chinese Patent Publication No. CN205253601U, which discloses a device for removing aged RTV coatings from insulator surfaces. The device includes multiple scraping heads, a circular base plate, an annular thickness control plate, a main shaft, a spring, a guide rod assembly, a coupling, a motor main shaft, a DC motor, a pull rod, a hinge, a rocker arm, a handle, a control switch, and a DC power supply. The scraping heads are evenly distributed on the circular base plate, which is fixedly connected to the main shaft. The annular thickness control plate is located on the outer periphery of the circular base plate and is fixedly connected to the guide rod assembly. The guide rod assembly is sleeved on the main shaft, and the spring is sleeved on the outer periphery of the guide rod assembly. The guide rod assembly is connected to the handle via a pull rod, a hinge, and a rocker arm, forming a four-bar linkage mechanism. The extension and retraction of the guide rod assembly are controlled by the handle. This invention controls the thickness and force of the wiping process by compressing a spring, and uses a four-bar linkage to control the small displacement of the spring compression process, achieving good contact between the cleaning device and the surface of the insulator, which is beneficial for the removal of aging RTVs. However, the cleaning device still achieves the effect of removing the coating by mechanical scraping, but the removed coating cannot be collected well, thus causing environmental pollution and failing to achieve the purpose of environmental protection. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a device for removing old coatings from highway guardrail surfaces. It aims to improve the effect of removing coatings by mechanical scraping in the existing technology. However, the removed coating cannot be collected well, which causes environmental pollution and makes it impossible to complete environmental protection work effectively.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a device for removing old coatings from highway guardrail surfaces, comprising a drive vehicle, an extraction mechanism provided on the front side of the top wall of the drive vehicle, a vertical plate fixedly connected to the rear side of the top wall of the drive vehicle, hydraulic rods fixedly connected to the front and rear ends of the left side of the vertical plate, an adjusting plate fixedly connected to the left end of the hydraulic rods, elastic scrapers fixedly connected to the front and rear ends of the left side of the adjusting plate, a cleaning component provided on the rear side of the top wall of the adjusting plate, a disassembly and assembly mechanism provided on the right side of the adjusting plate, and a protective component provided on the outer side of the drive vehicle; the extraction mechanism includes an extraction fan, the bottom wall of the extraction fan fixedly connected to the right side of the top wall of the drive vehicle, a connecting pipe connected to the front side of the extraction fan, a processing box connected to the left end of the connecting pipe, a filter plate slidably connected to the left side of the processing box, an extraction pipe connected to the rear end of the left side of the processing box, an extraction head connected to the rear end of the extraction pipe, and an extraction head fixedly connected to the right side of the middle left side of the drive vehicle.

[0006] The above technical solution involves starting the extraction fan to draw in airflow and cleaned coating debris, which is then collected and processed in a treatment box. Simultaneously, the hydraulic rod drives the adjustment plate to move, and the movement of the drive vehicle completes the adaptive cleaning of the guardrail surface, avoiding the situation where the removed coating cannot be properly collected, thus preventing environmental pollution.

[0007] As a further description of the above technical solution:

[0008] The disassembly and assembly mechanism includes two bolts, the middle parts of which are threaded to the right side of the adjustment plate, and the ends of the bolts are threaded to a mounting shell. The front and rear ends of the left side of the inner wall of the mounting shell are fixedly connected to a return spring. The right end of the return spring is fixedly connected to a connecting plate, and the left side of the connecting plate is fixedly connected to a cleaning brush.

[0009] The above technical solution allows the mounting shell to be installed or removed from one side of the adjusting plate by rotating the bolt. Then, under the elastic force of the return spring, the connecting plate and the cleaning brush are subjected to the pressure of the return spring, thereby achieving the effect of squeezing the surface of the guardrail. This increases the contact area between the cleaning brush and the guardrail surface, thus improving the cleaning effect and extending the service life of the device.

[0010] As a further description of the above technical solution:

[0011] The cleaning assembly includes a connecting rod, the bottom of which is fixedly connected to the rear side of the top wall of the adjusting plate. A fixing shell is fixedly connected to the left side of the connecting rod, and a servo motor is fixedly connected to the inner top wall of the fixing shell. A cleaning column is fixedly connected to the output end of the servo motor.

[0012] The above technical solution enables the cleaning column to rotate under the drive of the servo motor, thereby cleaning the other side of the guardrail.

[0013] As a further description of the above technical solution:

[0014] A control switch is fixedly connected to the middle of the right rear end of the drive vehicle. The control switch is electrically connected to the drive vehicle, the extraction fan, the hydraulic rod, and the servo motor.

[0015] The above technical solution enables the equipment to be turned on and off under the control of the control switch.

[0016] As a further description of the above technical solution:

[0017] A rubber ring is fixedly connected to the left end of the outer wall of the connecting pipe, and the outer wall of the rubber ring is fixedly connected to the front side of the processing box.

[0018] The above technical solution enables the protection of the left end connection of the connecting pipe to be achieved through the connection of the rubber ring.

[0019] As a further description of the above technical solution:

[0020] The disassembly and assembly mechanism also includes two rubber pads, the inner walls of which are respectively fixedly connected to the middle of the corresponding bolts.

[0021] The above technical solution reduces the rotational damage to the right side of the adjusting plate caused by the bolts, thanks to the connection of the rubber pad.

[0022] As a further description of the above technical solution:

[0023] The top of the elastic scraper is provided with a cover plate, and the rear side of the cover plate is rotatably connected to the top wall of the adjusting plate via a hinge.

[0024] The above technical solution enables the top of the structure on one side of the adjusting plate to be protected by the rotating connection of the cover plate.

[0025] As a further description of the above technical solution:

[0026] The protective assembly includes two side panels, with adjacent sides of the two side panels fixedly connected to the bottom left and right sides of the drive vehicle, and front panels fixedly connected to the left and right ends of the front side of the drive vehicle.

[0027] The above technical solution enables the bottom of the vehicle to be protected by the connection of the protective components, thereby improving the service life of the device.

[0028] This utility model has the following beneficial effects:

[0029] In this invention, the extraction fan is activated to draw airflow and remove coating debris generated after cleaning. The debris then enters the processing chamber through the extraction pipe and is uniformly processed by the filter plate. Simultaneously, the hydraulic rod drives the adjustment plate to move, thus completing the adaptive cleaning of the guardrail surface. This avoids the situation where the removed coating cannot be properly collected, which could lead to environmental pollution, and achieves the goal of environmentally friendly and adaptive operation.

[0030] In this invention, the bolts are rotated to allow the mounting shell to be installed or removed from one side of the adjustment plate. Then, through the connection of the return spring, the connecting plate and the cleaning brush are subjected to the pressure of the return spring, thereby achieving the effect of squeezing the surface of the guardrail. This improves the cleaning effect, extends the service life of the device, and enhances the flexibility and adaptability of the device. Attached Figure Description

[0031] Figure 1 This is a perspective view of a device for removing old coatings from the surface of highway guardrails, as proposed in this utility model.

[0032] Figure 2 This is a front view of a device for removing old coatings from the surface of highway guardrails, as proposed in this utility model.

[0033] Figure 3 This is a top view of a device for removing old coatings from the surface of highway guardrails, as proposed in this utility model.

[0034] Figure 4 This is a schematic diagram of the structure of a device for removing old coatings from the surface of highway guardrails proposed in this utility model;

[0035] Figure 5 This is a schematic diagram of the disassembly and assembly mechanism of a device for removing old coatings from the surface of highway guardrails, as proposed in this utility model.

[0036] Legend:

[0037] 1. Drive vehicle; 2. Extraction mechanism; 201. Extraction fan; 202. Connecting pipe; 203. Processing box; 204. Filter plate; 205. Extraction pipe; 206. Extraction head; 207. Rubber ring; 3. Vertical plate; 4. Hydraulic rod; 5. Adjusting plate; 6. Elastic scraper; 7. Cleaning assembly; 701. Connecting rod; 702. Fixing shell; 703. Servo motor; 704. Cleaning column; 8. Disassembly and assembly mechanism; 801. Bolt; 802. Mounting shell; 803. Return spring; 804. Connecting plate; 805. Cleaning brush; 806. Rubber pad; 9. Protective assembly; 901. Side baffle; 902. Front baffle; 10. Control switch; 11. Cover plate. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of an old coating removal device for highway guardrails, comprising a drive vehicle 1, an extraction mechanism 2 provided on the front side of the top wall of the drive vehicle 1, a vertical plate 3 fixedly connected to the rear side of the top wall of the drive vehicle 1, and hydraulic rods 4 fixedly connected to the front and rear ends of the left side of the vertical plate 3, so that when the hydraulic rod 4 is activated, its front end can drive the adjustment plate 5 to move, thereby causing the elastic scraper 6 to approach or move away from the side of the guardrail. The left end of the hydraulic rod 4 is fixedly connected to the adjustment plate 5, and the front and rear ends of the left side of the adjustment plate 5 are fixedly connected to the elastic scraper 6, so as to achieve the purpose of adaptive adjustment.

[0040] A cleaning component 7 is provided on the rear side of the top wall of the adjustment plate 5. The cleaning component 7 can clean the other side of the guardrail. A disassembly and assembly mechanism 8 is provided on the right side of the adjustment plate 5. A protective component 9 is provided on the outside of the drive vehicle 1.

[0041] The extraction mechanism 2 includes an extraction fan 201. The bottom wall of the extraction fan 201 is fixedly connected to the right side of the top wall of the drive vehicle 1. The front side of the extraction fan 201 is connected to a connecting pipe 202. The left end of the connecting pipe 202 is connected to a processing box 203. By starting the extraction fan 201, it can extract the debris of the cleaned coating through the processing box 203. The left side of the processing box 203 is slidably connected to a filter plate 204. The left rear end of the processing box 203 is connected to an extraction pipe 205. Then, under the obstruction of the filter plate 204, the coating debris is collected uniformly. The rear end of the extraction pipe 205 is connected to an extraction head 206. The right side of the extraction head 206 is fixedly connected to the middle left side of the drive vehicle 1.

[0042] Specifically, the bottom wall of the extraction fan 201 is fixed to the right side of the top wall of the drive vehicle 1. After starting, it generates suction and sucks up the coating debris generated after cleaning the guardrail through the extraction head 206 at the end of the extraction pipe 205. The debris enters the processing box 203 through the extraction pipe 205. The filter plate 204, which is slidably connected to the left side of the processing box 203, intercepts the debris and achieves unified collection. The hydraulic rod 4, which is fixed to the front and rear ends of the left side of the upright plate 3, drives the adjustment plate 5 connected to the left end to move after starting. The elastic scraper 6, which is fixed to the front and rear ends of the left side of the adjustment plate 5, moves accordingly. Through the extension and retraction control of the hydraulic rod 4, the elastic scraper 6 is brought closer to or away from the side of the guardrail, and adaptive adjustment is completed according to the actual condition of the guardrail. The cleaning component 7 on the rear side of the top wall of the adjustment plate 5 is used to clean the other side of the guardrail. The disassembly and assembly mechanism 8 on the right side facilitates the disassembly, installation and maintenance of the components. The protective component 9 on the outside of the drive vehicle 1 provides operational protection.

[0043] Reference Figure 1 , Figure 2 and Figure 5 The disassembly and assembly mechanism 8 includes two bolts 801. The middle parts of the two bolts 801 are threaded to the right side of the adjusting plate 5, and the ends of the bolts 801 are threaded to the mounting shell 802. The front and rear ends of the left side of the inner wall of the mounting shell 802 are fixedly connected to the return springs 803, so that the mounting shell 802 can be installed or disassembled under the rotation of the bolts 801, thereby improving the flexibility of the device. The right end of the return spring 803 is fixedly connected to the connecting plate 804, and the left side of the connecting plate 804 is fixedly connected to the cleaning brush 805. Under the elastic pressure of the return spring 803, the cleaning brush 805 can increase the contact area with the guardrail, thereby improving the cleaning effect. The disassembly and assembly mechanism 8 also includes two rubber pads 806. The inner walls of the two rubber pads 806 are fixedly connected to the middle of the corresponding bolts 801. The connection of the rubber pads 806 reduces the rotational damage of the bolts 801 to one side of the adjusting plate 5.

[0044] Specifically, the disassembly and assembly mechanism 8 achieves the purpose of quickly disassembling and assembling the cleaning brush 805 and optimizing the cleaning effect. The two bolts 801 are threadedly connected to the right side of the adjusting plate 5 at the middle, and their ends are threadedly engaged with the mounting shell 802. By rotating the bolts 801, the mounting shell 802 can be installed or disassembled, which facilitates the replacement and maintenance of components such as the cleaning brush 805 and improves the flexibility of the device. The return springs 803 are fixed at the front and rear ends of the left side of the inner wall of the mounting shell 802, and their other ends are fixedly connected to the connecting plate 804. The cleaning brush 805 is fixed to the left side of the connecting plate 804, and the return springs 803 are fixed to the left side of the connecting plate 804. Utilizing its own elasticity, the connecting plate 804 and cleaning brush 805 are continuously pressed towards the guardrail, making the cleaning brush 805 fit tightly against the guardrail surface, increasing the contact area with the guardrail, ensuring no cleaning dead corners during the cleaning process, and effectively improving the cleaning effect. In addition, the inner walls of the two rubber pads 806 are respectively fixed to the middle of the corresponding bolts 801. During the rotation of the bolts 801, the rubber pads 806 play a buffering role, avoiding direct friction between the bolts 801 and the adjusting plate 5, reducing rotational damage to one side of the adjusting plate 5, protecting the structural integrity of the device, and extending its service life.

[0045] Reference Figure 1 , Figure 2 and Figure 4 The cleaning component 7 includes a connecting rod 701, the bottom of which is fixedly connected to the rear side of the top wall of the adjusting plate 5. A fixing shell 702 is fixedly connected to the left side of the connecting rod 701. A servo motor 703 is fixedly connected to the inner top wall of the fixing shell 702. A cleaning column 704 is fixedly connected to the output end of the servo motor 703. A control switch 10 is fixedly connected to the middle of the right rear end of the drive vehicle 1. The control switch 10 is electrically connected to the drive vehicle 1, the extraction fan 201, the hydraulic rod 4, and the servo motor 703. A rubber ring 207 is fixedly connected to the left end of the outer wall of the connecting pipe 202. The outer wall of the rubber ring 207 is fixedly connected to the front side of the processing box 203.

[0046] Specifically, the servo motor 703 is started to drive the cleaning column 704 to rotate, thereby achieving rotational cleaning of the other side of the guardrail. The control switch 10, which is electrically connected to the drive vehicle 1, the extraction fan 201, the hydraulic rod 4 and the servo motor 703 respectively, can turn the equipment on and off. The rubber ring 207 protects the left end of the connecting pipe 202, thereby improving the service life of the connecting pipe 202.

[0047] Reference Figure 1 , Figure 2 and Figure 3The top of the elastic scraper 6 is provided with a cover plate 11, and the rear side of the cover plate 11 is rotatably connected to the top wall of the adjusting plate 5 via a hinge; the protective component 9 includes two side baffles 901, the adjacent sides of the two side baffles 901 are respectively fixedly connected to the bottom of the left and right sides of the drive vehicle 1, and the front baffles 902 are fixedly connected to the left and right ends of the front side of the drive vehicle 1.

[0048] Specifically, the cover plate 11 is rotated to protect the top of the left side structure of the adjustment plate 5, and the side baffle 901 and front baffle 902 can protect the bottom of the outer wall of the drive vehicle 1, thus improving the service life of the device.

[0049] Working principle: The drive vehicle 1 works in coordination with the extraction mechanism 2 and the adjustment and cleaning mechanism to achieve guardrail cleaning and environmentally friendly waste disposal. By starting the extraction fan 201, suction is generated, which causes the extraction head 206 to extract the airflow and coating debris generated during the cleaning operation. The debris is carried by the airflow through the extraction pipe 205 into the treatment box 203. The filter plate 204, which is slidably connected on the left side of the treatment box 203, intercepts the debris and achieves unified collection. The purified airflow is discharged through the connecting pipe 202 to avoid debris pollution of the environment. By activating the two hydraulic rods 4, the left end of the drive plate 5 is moved to move, which causes the elastic scrapers 6 at the front and rear ends of the left side of the adjustment plate 5 to move closer to or away from the guardrail surface, and to complete adaptive adjustment according to the shape of the guardrail. The cleaning component 7 on the rear side of the top wall of the adjustment plate 5 cleans the other side of the guardrail at the same time, so as to ensure that the removed coating debris is properly collected and disposed of, and achieve the goal of environmentally friendly operation.

[0050] Furthermore, the disassembly and assembly mechanism 8 enables flexible disassembly and assembly of the cleaning brush 805 via bolts 801 and a return spring 803. The ends of the two bolts 801 are threaded into the mounting housing 802. Rotating the bolts 801 allows for quick installation or removal of the mounting housing 802, improving the ease of device maintenance. The return spring 803, fixed at both ends on the left side of the inner wall of the mounting housing 802, has its other end fixed to the connecting plate 804 and the left-side cleaning brush 805. The spring force allows the cleaning brush 805 to fit tightly against the guardrail surface, increasing the contact area and improving the cleaning effect. At the same time, the rubber pad 806 fixed in the middle of the bolts 801 buffers the friction between the bolts 801 and the adjusting plate 5 during rotation, reducing damage to the adjusting plate 5 and extending the service life of the device. This enables quick component replacement and structural protection, improving the overall adaptability and durability of the device.

[0051] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for removing old coatings from highway guardrail surfaces, comprising a drive vehicle (1), characterized in that: The drive vehicle (1) is provided with a extraction mechanism (2) on the front side of the top wall. The drive vehicle (1) is fixedly connected with a vertical plate (3) on the rear side of the top wall. The vertical plate (3) is fixedly connected with a hydraulic rod (4) on the front and rear ends of the left side. The hydraulic rod (4) is fixedly connected with an adjustment plate (5) on the left end. The adjustment plate (5) is fixedly connected with an elastic scraper (6) on the front and rear ends of the left side. The adjustment plate (5) is provided with a cleaning component (7) on the rear side of the top wall. The adjustment plate (5) is provided with a disassembly and assembly mechanism (8) on the right side. The drive vehicle (1) is provided with a protective component (9) on the outside. The extraction mechanism (2) includes an extraction fan (201). The bottom wall of the extraction fan (201) is fixedly connected to the right side of the top wall of the drive vehicle (1). A connecting pipe (202) is connected to the front side of the extraction fan (201). A processing box (203) is connected to the left end of the connecting pipe (202). A filter plate (204) is slidably connected to the left side of the processing box (203). An extraction pipe (205) is connected to the rear end of the left side of the processing box (203). An extraction head (206) is connected to the rear end of the extraction pipe (205). The right side of the extraction head (206) is fixedly connected to the middle left side of the drive vehicle (1).

2. The equipment for removing old coatings from highway guardrail surfaces according to claim 1, characterized in that: The disassembly and assembly mechanism (8) includes two bolts (801). The middle part of the two bolts (801) is threaded to the right side of the adjusting plate (5). The end of the bolts (801) is threaded to the mounting shell (802). The front and rear ends of the left side of the inner wall of the mounting shell (802) are fixedly connected to a return spring (803). The right end of the return spring (803) is fixedly connected to a connecting plate (804). The left side of the connecting plate (804) is fixedly connected to a cleaning brush (805).

3. The equipment for removing old coatings from highway guardrail surfaces according to claim 1, characterized in that: The cleaning component (7) includes a connecting rod (701), the bottom of which is fixedly connected to the rear side of the top wall of the adjusting plate (5), a fixing shell (702) is fixedly connected to the left side of the connecting rod (701), a servo motor (703) is fixedly connected to the inner top wall of the fixing shell (702), and a cleaning column (704) is fixedly connected to the output end of the servo motor (703).

4. The equipment for removing old coatings from highway guardrail surfaces according to claim 3, characterized in that: A control switch (10) is fixedly connected to the middle of the right rear end of the drive vehicle (1). The control switch (10) is electrically connected to the drive vehicle (1), the extraction fan (201), the hydraulic rod (4), and the servo motor (703).

5. The equipment for removing old coatings from highway guardrail surfaces according to claim 1, characterized in that: A rubber ring (207) is fixedly connected to the left end of the outer wall of the connecting pipe (202), and the outer wall of the rubber ring (207) is fixedly connected to the front side of the processing box (203).

6. The equipment for removing old coatings from highway guardrail surfaces according to claim 2, characterized in that: The disassembly and assembly mechanism (8) also includes two rubber pads (806), the inner walls of which are respectively fixedly connected to the middle of the corresponding bolts (801).

7. The equipment for removing old coatings from highway guardrail surfaces according to claim 1, characterized in that: The top of the elastic scraper (6) is provided with a cover plate (11), and the rear side of the cover plate (11) is rotatably connected to the top wall of the adjusting plate (5) by a hinge.

8. The equipment for removing old coatings from highway guardrail surfaces according to claim 1, characterized in that: The protective component (9) includes two side baffles (901), with the adjacent sides of the two side baffles (901) fixedly connected to the bottom left and right sides of the drive vehicle (1), and front baffles (902) fixedly connected to the left and right ends of the front side of the drive vehicle (1).

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