Nano-anticorrosion coating equipment and method for highway bridge anti-collision guardrail

Abstract

The present invention discloses nano-anticorrosion coating equipment and method for anti-collision guardrails of highway bridges; it belongs to the technical field of coating coating; it comprises a supporting transport vehicle, a sliding platform, a sliding extension plate, a first coating mechanism and a second coating mechanism; a rotating cleaning component, a water-liquid flushing component, an airflow drying plate and a coating component are sequentially arranged on opposite sides of the two coating plates; a reflux filter component is arranged below the water-liquid flushing component; the anti-collision guardrail is first continuously swept and brushed by the rotating cleaning component, and then the water-liquid flushing component pressure-flushes the anti-collision guardrail by spraying water; then the airflow drying plate sprays high-pressure gas through the anti-collision guardrail to remove the water; finally, the anti-collision guardrail is coated under the action of the coating component; the present invention solves the problem of poor on-site coating effect of the anti-collision guardrail.

Description

Technical Field

[0001] The present invention belongs to the technical field of coatings, and in particular relates to nano-anticorrosion coating equipment and a method for anti-collision guardrails of highway bridges. Background Art

[0002] Concrete crash barriers are crucial safety structures in highway bridge construction. They prevent vehicles from falling in the event of a loss of control or a traffic accident, thus maximizing highway safety. Concrete, an artificial stone material composed of a mixture of cementitious materials, water, and coarse and fine aggregates in appropriate proportions, which hardens over time, is susceptible to corrosion from various factors during use. Factors that primarily cause concrete structural damage include carbonization, chloride ion attack, sulfate attack, oxygen, and water. The volume of steel bar corrosion products (rust) is approximately 2.5 to 7 times the volume of the original steel. The resulting expansion pressure can cause cracking and spalling in the concrete. These cracks, in turn, allow more corrosive media to enter, leading to further corrosion.

[0003] Existing coating equipment is mostly used in factories, using fixed-mounted coating mechanisms to apply coatings to uniquely straight and curved guardrails. However, for outdoor highway bridges, concrete crash barriers exhibit varying curvatures in certain areas, making it difficult for existing coating equipment to reliably operate on-site. Furthermore, existing coating equipment is simple, often employing a single spraying process, which can easily cause paint to flake off. Furthermore, over time, concrete crash barriers accumulate dust that affects the coating, as well as corroded, flaky stone particles. Existing equipment, with its limited coating components, makes cleaning difficult. Summary of the Invention

[0004] The present invention overcomes the shortcomings of the existing technology and proposes a nano-anticorrosion coating device and method for highway bridge anti-collision guardrails; it solves the problem of poor on-site coating effect of anti-collision guardrails. The present invention is achieved through the following technical solutions:

[0005] Nano-anticorrosion coating equipment for highway bridge anti-collision guardrails includes a support and transport vehicle, a sliding platform, a sliding extension plate, a first coating mechanism, and a second coating mechanism; a sliding platform is provided above the support and transport vehicle; the sliding extension plate is slidably connected to the sliding platform; movable adjustment mechanisms are installed on one side of the bottom surface of the sliding platform and the bottom surface of the sliding extension plate; the lower ends of the two movable adjustment mechanisms are respectively provided with a first coating mechanism and a second coating mechanism, the first coating mechanism and the second coating mechanism are distributed in mirror symmetry, and the first coating mechanism and the second coating mechanism are both composed of a fixed lifting sleeve and a coating plate; the fixed lifting sleeve is slidably provided at the lower end of the movable adjustment mechanism, and the top of the coating plate is slidably connected to the lower part of the fixed lifting sleeve;

[0006] The movable adjustment mechanism consists of a fixed connection frame, a movable connection frame and a reset push assembly; the fixed connection frame of one movable adjustment mechanism is fixedly connected to the bottom surface of the sliding platform, and the fixed connection frame of the other movable adjustment mechanism is fixedly connected to the bottom surface of the sliding extension plate; the fixed connection frame is located above the movable connection frame; a stepped turn block is provided on the movable connection frame, and the stepped turn block is rotatably connected to the fixed connection frame; the reset push assembly consists of two connection blocks and four reset springs, the two connection blocks are symmetrically mounted on the fixed connection frame, and one side of the two connection blocks is symmetrically inclined and provided with two reset springs, the other end of the reset spring is fixedly connected to the stepped turn block;

[0007] A rotating cleaning assembly, a water-flushing assembly, an airflow drying plate and a coating assembly are sequentially arranged on opposite sides of the two coating plates; a reflux filtering assembly is arranged below the water-flushing assembly;

[0008] The rotating cleaning assembly is connected to the side wall of the coating plate and is used to clean the anti-collision guardrail. The water flushing assembly is used to spray water to flush the anti-collision guardrail. The airflow drying plate is used to blow dry the accumulated water on the anti-collision guardrail with air. The coating assembly coats the anti-collision guardrail with nano-anti-corrosion coating. The reflux filter assembly receives the flowing water, filters the water, and then transports it to the water flushing assembly.

[0009] Furthermore, two sliding grooves are symmetrically provided at the lower end of the movable connecting frame, and two sliding blocks for matching the two sliding grooves are symmetrically provided at the upper end of the fixed lifting sleeve; the side ends of the two sliding blocks are abutted with spring push rods, and the spring push rods include a movable extension rod, a support spring and a connecting sleeve; the connecting sleeve is fixed in the sliding groove of the movable connecting frame, and a support spring for ejecting the movable extension rod is provided in the connecting sleeve, one end of the movable extension rod abuts against the side wall of the slider, and the other end of the movable extension rod is slidably connected in the connecting sleeve, one end of the support spring is connected to the inner wall of the connecting sleeve, and the other end is connected to the movable extension rod.

[0010] Furthermore, a first transmission screw is provided in the sliding platform for horizontal rotation, and the first transmission screw is threaded through the horizontal connecting rod of the sliding extension plate; a motor box is provided on the top surface of the sliding platform; and the motor in the motor box is connected to the first transmission screw.

[0011] Furthermore, a second transmission screw is provided for the vertical rotation of the coating plate, the upper end of the second transmission screw is threaded through the fixed lifting sleeve, and the upper end of the second transmission screw is connected to the motor fixed in the fixed lifting sleeve; two guide rods are symmetrically provided on both sides of the second transmission screw, the two guide rods are fixedly connected to the fixed lifting sleeve, and are slidingly connected to the coating plate.

[0012] Furthermore, the rotating cleaning assembly consists of a cleaning brush belt and a connecting seat. The connecting seat is connected to the side wall of the coating plate by multiple fixing bolts. Multiple electric friction wheels are rotatably provided on the connecting seat. The cleaning brush belt is a ring structure, and the inner side of the cleaning brush belt abuts against the electric friction wheel; when the electric friction wheel rotates, the cleaning brush belt rotates accordingly. The outer side of the cleaning brush belt is bristles, and the bristles are used to contact the anti-collision guardrail to brush the anti-collision guardrail.

[0013] Furthermore, the water flushing component consists of a curved vertical spray head and multiple horizontal spray heads. Multiple flushing nozzles are equidistantly arranged in the vertical spray head and the multiple horizontal spray heads. The vertical spray head is installed on the coating plate between the rotating cleaning component and the multiple horizontal spray heads; several air flow nozzles are equidistantly opened on the air flow drying plate, and the air flow nozzles are opened at an angle downward.

[0014] Furthermore, the reflux filter assembly consists of a receiving box, an abutment guide pad and a filter plate. The receiving box is installed at the bottom end of the coating plate, and the filter plate is installed obliquely on the opening at the top of the receiving box. The side end of the receiving box is provided with an abutment guide pad, and the lower end of the airflow drying plate is provided with a slag unloading trough connected to the filter plate. A reflux suction pipe is provided in the receiving box, and a filter cartridge is provided at the end of the reflux suction pipe; a snap-on cover plate is hingedly installed at the bottom end of the receiving box.

[0015] Furthermore, the coating assembly consists of two coating rollers, a coating scraper and several coating nozzles; the two coating rollers are rotatably mounted on the coating plate, and the coating rollers are adjacent to the air drying plate; the coating scraper is located on the other side of the coating roller, and several coating nozzles are equidistantly mounted on the edge of the coating plate and adjacent to the coating scraper; the coating plate is provided with several first coating outlet holes equidistantly between the coating scraper and the coating roller; a scraping and cleaning assembly is provided in the coating plate at the two coating rollers.

[0016] Furthermore, the scraping cleaning assembly consists of a ring plate coating brush, a cleaning recovery box and a paint storage box; a cleaning scraper for abutting and pressing the coating roller is vertically provided on the cleaning recovery box, a baffle is extended at one side wall of the cleaning recovery box, and multiple filter boxes are equidistantly installed in the cleaning recovery box, the coating bristles of the ring plate coating brush abut on the coating roller, and several second paint outlet holes for connecting to the paint storage box are equidistantly opened on the ring plate coating brush, the ring plate coating brush is abutted and installed on the side wall of the paint storage box, and a recovery suction pump is provided at the lower end of the paint storage box, and the feed pipe of the recovery suction pump is connected to the bottom end of the cleaning recovery box; the excess paint on the coating roller is scraped by the cleaning scraper, and the scraped paint flows into the filter box. After filtering by the filter box, the paint is drawn into the paint storage box by the recovery suction pump for reuse, and the paint in the paint storage box adheres to the ring plate coating brush through the second paint outlet hole, and new paint is added to the coating roller through the ring plate coating brush.

[0017] The nano-anticorrosion coating method for highway bridge anti-collision guardrail is based on the nano-anticorrosion coating equipment for highway bridge anti-collision guardrail; the method comprises the following steps:

[0018] Step 1: Operate the support transport vehicle to the anti-collision guardrail, and adjust the height and spacing of the two coating plates so that the first coating mechanism and the second coating mechanism are located on both sides of the anti-collision guardrail and clamp the anti-collision guardrail;

[0019] In step 2, the coating assembly is then driven by the activated support transport vehicle to coat the guardrail. First, the guardrail is continuously swept by the rotating cleaning assembly and the water flushing assembly. The water flushing assembly pressure-flushes the concrete guardrail with the sprayed water. Then, the airflow drying plate passes over the concrete guardrail, and the airflow drying plate sprays high-pressure gas to remove the water on the guardrail.

[0020] Step three, finally, the anti-collision guardrail is coated under the action of the coating assembly. The first layer of nano anti-corrosion layer is coated by the coating roller, and then the second layer of nano anti-corrosion layer is sprayed through the first coating outlet. The sprayed coating is then scraped flat by the coating scraper, and then the concrete anti-collision guardrail is sprayed with relatively dry coating through the coating nozzle to accelerate the drying of the nano anti-corrosion layer.

[0021] The excess paint on the coating roller is scraped off by the cleaning scraper, and the scraped paint flows into the filter box. After being filtered by the filter box, the paint is recovered and sucked into the paint storage box by the suction pump to be reused. The paint in the paint storage box adheres to the ring plate coating brush through the second paint outlet, and new paint is added to the coating roller through the ring plate coating brush.

[0022] The beneficial effects of the present invention compared to the prior art are:

[0023] In the present invention, the coating function before coating can be realized by the coating coordination of the coating component and the rotating cleaning component, which is convenient for better coating and adhering the coating coating to the concrete anti-collision guardrail, thereby improving the coating effect of the nano anti-corrosion coating; the cooperation of the reflux filtration component and the water flushing component facilitates the recovery of the water used for flushing, thereby reducing the water consumption and increasing the single operation time of the equipment, thereby improving the working efficiency of the equipment; and the installation coordination of the scraping cleaning component and the coating roller can remove the residual coating on the coating roller, maintain the working state of the coating roller, and then realize the function of filtering and recovering the residual coating, thereby solving the problems of low outdoor coating efficiency and changeable coating state of the coating roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention from a first viewing angle;

[0025] Figure 2 A second perspective diagram of the overall structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of the sliding platform of the present invention;

[0027] Figure 4 This is a schematic diagram of the three-dimensional structure of the positional relationship of the internal components of the fixed connection frame of the present invention;

[0028] Figure 5 This is a schematic diagram of the three-dimensional structure of the reset and pushing component of the present invention;

[0029] Figure 6 This is a schematic diagram of the three-dimensional structure of the positional relationship between the slider and the spring push rod of the present invention;

[0030] Figure 7 This is a three-dimensional schematic diagram of the positional relationship of the reflux filter assembly of the present invention;

[0031] Figure 8 This is a schematic diagram of the cross-sectional three-dimensional structure of the reflux filter assembly of the present invention;

[0032] Figure 9 This is a schematic diagram of the three-dimensional structure of the cleaning brush belt position relationship of the present invention;

[0033] Figure 10 This is a schematic diagram of the three-dimensional structure of the scraping and cleaning components of the present invention;

[0034] Figure 11 This is a schematic diagram of the three-dimensional structure of the positional relationship of the filter box of the present invention;

[0035] Figure 12 It is a three-dimensional structural diagram of the connection relationship between the paint storage box and the recovery suction pump of the present invention.

[0036] Serial number in the picture:

[0037] 1. Support transport vehicle; 2. Counterweight block; 3. Support frame; 4. Water tank; 5. Sliding platform; 6. First coating mechanism; 7. Second coating mechanism; 8. Generator; 9. Sliding extension plate; 10. First transmission screw; 11. Control box; 12. Motor box; 13. Fixed connection frame; 14. Movable connection frame; 15. Second transmission screw; 16. Guide rod; 17. Stepped turn block; 18. Return spring; 19. Fixed lifting plate; 20. Coating plate; 21. Sliding block; 22. Support spring; 2 3. Cleaning brush belt; 24. Ring plate coating brush; 25. Reflux filter assembly; 26. Coating nozzle; 27. Vertical spray head; 28. Horizontal spray head; 29. Abutment guide pad; 30. Filter cartridge; 31. Filter plate; 32. Coating roller; 33. Coating scraper; 34. Snap-on cover; 35. Air flow nozzle; 36. First coating outlet; 37. Cleaning recovery box; 38. Filter box; 39. Cleaning scraper; 40. Baffle; 41. Paint storage box; 42. Second coating outlet; 43. Recovery suction pump. DETAILED DESCRIPTION

[0038] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail with reference to the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. The technical solutions of the present invention will be described in detail below with reference to the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.

[0039] See also Figures 1 to 12The present embodiment proposes a nano-anti-corrosion coating device and method for anti-collision guardrails of highway bridges; the coating equipment includes a supporting and transporting vehicle 1, a placing frame is provided at the top of the supporting and transporting vehicle 1, a counterweight pressure block 2 is provided in the placing frame, a supporting frame 3 is provided at the side end of the placing frame, a water tank 4 is installed on one side of the supporting frame 3, and a generator 8 is installed on the other side of the supporting frame 3; a sliding platform 5 is provided at the top of the supporting frame 3, a first transmission screw 10 is provided in the sliding platform 5 for horizontal rotation, a sliding extension plate 9 is slidably connected to the sliding platform 5, and the first transmission screw 10 is threadedly passed through the sliding extension plate 9; a control box 11 is provided on the top surface of the sliding platform 5, and a motor box 12 is provided at the side end of the control box 11; the motor in the motor box 12 is connected to the first transmission screw 10 to provide power for the first transmission screw 10; when it is necessary to extend the sliding extension plate 9 from one side of the sliding platform 5, the motor is started and the first transmission screw 10 rotates, thereby driving the sliding extension plate 9 to move. One side of the bottom surface of the sliding platform 5 and the side end of the bottom surface of the sliding extension plate 9 are both installed with movable adjustment mechanisms. The lower ends of the two movable adjustment mechanisms are respectively provided with a first coating mechanism 6 and a second coating mechanism 7. The first coating mechanism 6 and the second coating mechanism 7 are distributed in a mirror-symmetrical manner. Through the setting of the first coating mechanism 6 and the second coating mechanism 7, the concrete anti-collision guardrail can be fitted and clamped, so as to better perform the coating operation on the concrete anti-collision guardrail.

[0040] The first coating mechanism 6 and the second coating mechanism 7 are both composed of a fixed lifting sleeve 19 and a coating plate 20; the fixed lifting sleeve 19 is slidably arranged at the lower end of the movable adjustment mechanism, and the top of the coating plate 20 is movably connected to the lower part of the fixed lifting sleeve 19.

[0041] The movable adjustment mechanism consists of a fixed connecting frame 13, a movable connecting frame 14 and a reset pushing assembly; the fixed connecting frame 13 of one movable adjusting mechanism is fixedly connected to the bottom surface of the sliding platform 5, and the fixed connecting frame 13 of the other movable adjusting mechanism is fixedly connected to the bottom surface of the sliding extension plate 9; the fixed connecting frame 13 is located above the movable connecting frame 14; the movable connecting frame 14 is provided with a stepped rotating block 17, and the stepped rotating block 17 is rotatably connected to the fixed connecting frame 13; the reset pushing assembly consists of two connecting blocks and four reset springs 18, the two connecting blocks are symmetrically mounted on the fixed connecting frame 13, one side of the two connecting blocks are symmetrically inclined and provided with two reset springs 18, and the other end of the reset spring 18 is fixedly connected to the stepped rotating block 17; when one side of the coating plate 20 is subjected to external force, the coating plate 20 together with the fixed lifting sleeve 19 and the movable connecting frame 14 will produce a certain angle of rotation. At this time, the reset pushing assembly can adapt to this rotation and drive the coating plate 20 to reset after the external force disappears.

[0042] Two sliding grooves are symmetrically provided at the lower end of the movable connecting frame 14, and two sliding blocks 21 for matching the two sliding grooves are symmetrically provided at the upper end of the fixed lifting sleeve 19; the side ends of the two sliding blocks 21 are abutted with spring push rods, and the spring push rods include a movable extension rod, a support spring 22 and a connecting sleeve; the connecting sleeve is fixed in the sliding groove of the movable connecting frame 14, and a support spring 22 for ejecting the movable extension rod is provided in the connecting sleeve, one end of the movable extension rod abuts against the side wall of the slider 21, and the other end of the movable extension rod is slidably connected to the connecting sleeve, one end of the support spring 22 is connected to the inner wall of the connecting sleeve, and the other end is connected to the movable extension rod; through the setting of the support spring 22, the coating plate 20 can fit and press the concrete anti-collision guardrail as a whole during normal operation.

[0043] By setting up the movable adjustment mechanism, the first coating mechanism 6 and the second coating mechanism 7 can be rotated and reset accordingly according to the degree of curvature of the concrete anti-collision guardrail, so that the first coating mechanism 6 and the second coating mechanism 7 can be closely attached to the curved structure of the concrete anti-collision guardrail for coating operations, so that the compressed first coating mechanism 6 and the second coating mechanism 7 can operate smoothly following the curvature of the concrete anti-collision guardrail, while reducing the deflection fluctuation of the support transport vehicle 1 during travel.

[0044] A second transmission screw 15 is provided in the coating plate 20 for vertical rotation. The upper end of the second transmission screw 15 is threaded into the fixed lifting sleeve 19, and the upper end of the second transmission screw 15 is connected to the motor fixed in the fixed lifting sleeve 19; two guide rods 16 are symmetrically provided on both sides of the second transmission screw 15, and the two guide rods 16 are fixedly connected to the fixed lifting sleeve 19 and slidingly connected to the coating plate 20. The guide rods 16 are used for stable sliding of the coating plate 20; the position of the first coating mechanism 6 and the second coating mechanism 7 can be adjusted in the horizontal direction through the first transmission screw 10, and the position of the first coating mechanism 6 and the second coating mechanism 7 can be adjusted in the vertical direction through the second transmission screw 15, so that the first coating mechanism 6 and the second coating mechanism 7 fit and clamp the two sides of the concrete anti-collision guardrail.

[0045] An airflow drying plate, a rotating cleaning assembly, a water flushing assembly, a reflux filtering assembly 25, a coating assembly and a scraping cleaning assembly are provided on opposite sides of the two coating plates 20 .

[0046] The rotating cleaning assembly consists of a cleaning brush belt 23 and a connecting seat. The connecting seat is connected to the side wall of the coating plate 20 by multiple fixing bolts. Multiple electric friction wheels are rotatably provided on the connecting seat. The cleaning brush belt 23 is a ring structure, and the inner side of the cleaning brush belt 23 abuts against the electric friction wheel; when the electric friction wheel rotates, the cleaning brush belt 23 rotates accordingly. The outer side of the cleaning brush belt 23 is bristles, which are used to contact the concrete anti-collision guardrail and brush the concrete anti-collision guardrail.

[0047] An airflow drying plate is provided in the middle of the coating plate 20, and a number of airflow nozzles 35 are equidistantly provided on the airflow drying plate, and the airflow nozzles 35 are inclined downward; high-pressure gas is introduced into the downward-inclined airflow nozzles 35, which can remove water from the concrete anti-collision guardrail and perform secondary cleaning on the concrete anti-collision guardrail at the same time.

[0048] The water flushing assembly is arranged between the air flow drying plate and the rotating cleaning assembly; the water flushing assembly consists of a curved vertical spray head 27 and multiple horizontal spray heads 28, and multiple flushing nozzles are equidistantly arranged in the vertical spray head 27 and the multiple horizontal spray heads 28, and the flushing nozzles are connected to the water tank 4 through pipelines; the vertical spray head 27 is installed on the coating plate 20 between the rotating cleaning assembly and the multiple horizontal spray heads 28. Through the arrangement of the rotating cleaning assembly and the water flushing assembly, the stone particles and dust that are easy to fall off on the concrete anti-collision guardrail can be better removed, so that the subsequently applied nano anti-corrosion layer is not easy to fall off.

[0049] A reflux filter assembly 25 is provided at the lower end of the water flushing assembly. The reflux filter assembly 25 consists of a receiving box, an abutment guide pad 29 and a filter plate 31. The receiving box is installed at the bottom end of the coating plate 20. The filter plate 31 is obliquely installed on the opening at the top of the receiving box. The side end of the receiving box is provided with an abutment guide pad 29. The lower end of the airflow drying plate is provided with a slag discharge trough connected to the filter plate 31. A reflux suction pipe is provided in the receiving box. The end of the reflux suction pipe is sleeved with a filter cartridge 30. The reflux suction pipe is connected to the water storage tank 4. A snap-on cover 34 is hingedly installed at the bottom end of the receiving box; through the setting of the reflux filter assembly 25, the water sprayed by the water flushing assembly can be introduced into the receiving box through the abutment guide pad 29, and the block particles can be discharged through the filter plate 31 and the slag unloading trough to prevent a large amount of water from flowing out and causing the water content of the ground below to increase sharply, affecting the subsequent drying of the nano-anti-corrosion layer. The water is filtered and recovered through the reflux suction pipe and the filter cartridge 30, reducing the rate of water consumption in the water tank 4 and improving the single operation time of the equipment.

[0050] A coating assembly is provided on the side of the air drying plate away from the water washing assembly. The coating assembly consists of two coating rollers 32, a coating scraper 33 and a plurality of coating nozzles 26. The two coating rollers 32 are rotatably mounted on the coating plate 20, and the coating rollers 32 are adjacent to the air drying plate; the coating scraper 33 is located on the other side of the coating rollers 32, and a plurality of coating nozzles 26 are equidistantly mounted on the edge of the coating plate 20, and are adjacent to the coating scraper 33; the coating plate 20 is equidistantly provided with a plurality of first coating outlet holes 36 between the coating scraper 33 and the coating rollers 32; The coating plate 20 is provided with a scraping and cleaning component; through the setting of the coating roller 32, the first layer of nano-anti-corrosion layer can be coated on a large smooth area, so that the subsequent nano-anti-corrosion layer can better adhere to the concrete anti-collision guardrail; the second layer of nano-anti-corrosion layer is sprayed through the first coating outlet 36, and then the sprayed coating is scraped flat by the coating scraper 33, so that the nano-anti-corrosion layer is evenly distributed on the concrete anti-collision guardrail; then the concrete anti-collision guardrail is sprayed with relatively dry coating through the coating nozzle 26, thereby accelerating the drying of the nano-anti-corrosion layer.

[0051] The scraping cleaning assembly consists of a ring plate coating brush 24, a cleaning recovery box 37 and a paint storage box 41; a cleaning scraper 39 for abutting and pressing the coating roller 32 is vertically provided on the cleaning recovery box 37, a baffle 40 is extended from one side wall of the cleaning recovery box 37, and a plurality of filter boxes 38 are installed at equal intervals in the cleaning recovery box 37. The coating bristles of the ring plate coating brush 24 abut on the coating roller 32, and a plurality of second paint outlet holes 42 for connecting to the paint storage box 41 are opened at equal intervals on the ring plate coating brush 24. The ring plate coating brush 24 is abutted against the side wall of the paint storage box 41, and a recovery suction pump 43 is provided at the lower end of the paint storage box 41. The feed pipe is connected to the bottom end of the cleaning recovery box 37; the excess paint on the coating roller 32 is scraped off by the cleaning scraper 39, and the scraped paint flows into the filter box 38. After being filtered by the filter box 38, the paint is recovered by the suction pump 43 and drawn into the paint storage box 41 to be reused. The paint in the paint storage box 41 adheres to the annular plate coating brush 24 through the second paint outlet 42, and new paint is added to the coating roller 32 through the annular plate coating brush 24; the scraping cleaning assembly can scrape and clean the rotating coating roller 32, thereby removing the paint that is not completely coated on the coating roller 32, and preventing the coating roller 32 from thickening and hardening.

[0052] The present invention also proposes a nano-anticorrosion coating method for highway bridge anti-collision guardrails, based on the nano-anticorrosion coating equipment for highway bridge anti-collision guardrails; specifically, the following steps:

[0053] Step one, according to the coating operation, place and install the corresponding counterweight block 2 in the placement frame; then fill the equipment with fuel, water and paint; then control the support and transport vehicle 1 to travel to the vicinity of the concrete anti-collision guardrail, and then rotate the second transmission screw 15 in the coating plate 20 to make the first coating mechanism 6 and the second coating mechanism 7 at the lower end of the movable adjustment mechanism rise, then start the support and transport vehicle 1, so that the first coating mechanism 6 and the second coating mechanism 7 are located above the concrete anti-collision guardrail, and then through the rotation of the first transmission screw 10, the sliding extension plate 9 drives the second coating mechanism 7 to extend, then adjust the position of the support and transport vehicle 1, and rotate the second transmission screw 15 to make the two coating plates 20 descend.

[0054] Step 2. After the coating plate 20 has completed the lifting and lowering to the specified height, the position of the support transport vehicle 1 and the extension amount of the sliding extension plate 9 are adjusted so that the spring push rod in the movable adjustment mechanism maintains a certain amount of contraction, and the coating plate 20 is pressed against the concrete anti-collision guardrail through the support spring 22; during the coating process, the movable adjustment mechanism can be used to ensure that the first coating mechanism 6 and the second coating mechanism 7 can be adjusted in angle according to the bending state of the concrete anti-collision guardrail and can be reset in time, so that the coating plate 20 is pressed against the concrete anti-collision guardrail as a whole during normal operation.

[0055] In step three, the coating component is then driven by the started support transport vehicle 1 to coat the concrete anti-collision guardrail. First, the concrete anti-collision guardrail is continuously swept and brushed by rotating the cleaning component and the water flushing component. The water flushing component can pressure-wash the concrete anti-collision guardrail with the sprayed water to remove the corroded concrete particles, prepare for subsequent coating, and make the nano-anti-corrosion layer coated later not easy to fall off; then the air drying plate passes through the concrete anti-collision guardrail and sprays high-pressure gas through the downward-inclined air flow nozzle 35, which removes the water on the concrete anti-collision guardrail and performs a secondary cleaning on the concrete anti-collision guardrail.

[0056] Step 4. Finally, the concrete anti-collision guardrail is coated under the action of the coating assembly. The coating roller 32 that passes first can coat the first layer of nano-corrosion layer on the large smooth area, so that the nano-corrosion layer can better adhere to the concrete anti-collision guardrail. Then, the nano-corrosion layer is coated as a whole through the cooperation of the coating scraper 33 and the first coating outlet 36, so that the nano-corrosion layer is evenly distributed on the concrete anti-collision guardrail. Then, the concrete anti-collision guardrail is sprayed with relatively dry coating through the coating nozzle 26, so that the concrete anti-collision guardrail is fully covered with the nano-corrosion layer, thereby strengthening Speed up the drying of the nano anti-corrosion layer; in this process, the water sprayed by the water washing component is introduced into the receiving box through the abutment guide pad 29 through the reflux filter component 25, and the block particles are discharged through the filter plate 31 and the slag discharge trough, and are filtered and recovered through the reflux suction pipe and the filter cartridge 30, thereby reducing the rate of water consumption in the water tank 4 and improving the single operation time of the equipment; through the setting of the scraping and cleaning component, the rotating coating roller 32 can be scraped and cleaned, thereby removing the paint that is not completely coated on the coating roller 32, and adding new paint to the coating roller 32 through the ring plate coating brush 24.

[0057] The above content is a further detailed description of the present invention in combination with a specific preferred embodiment. It cannot be considered that the specific embodiments of the present invention are limited to this. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the present invention, which should be regarded as belonging to the scope of patent protection determined by the submitted claims of the present invention.

Claims

1. Nano anti-corrosion coating equipment for highway bridge anti-collision guardrail, characterized in that: The invention comprises a supporting transport vehicle (1), a sliding platform (5), a sliding extension plate (9), a first coating mechanism (6) and a second coating mechanism (7); a sliding platform (5) is arranged above the supporting transport vehicle (1); the sliding extension plate (9) is slidably connected to the sliding platform (5); a movable adjustment mechanism is installed on one side of the bottom surface of the sliding platform (5) and the bottom surface of the sliding extension plate (9); a first coating mechanism (6) and a second coating mechanism (7) are respectively arranged at the lower ends of the two movable adjustment mechanisms, the first coating mechanism (6) and the second coating mechanism (7) are distributed in a mirror-symmetrical manner, and the first coating mechanism (6) and the second coating mechanism (7) are both composed of a fixed lifting sleeve (19) and a coating plate (20); the fixed lifting sleeve (19) is slidably arranged at the lower end of the movable adjustment mechanism, and the top of the coating plate (20) is slidably connected to the lower part of the fixed lifting sleeve (19); The movable adjustment mechanism is composed of a fixed connection frame (13), a movable connection frame (14) and a reset push assembly; the fixed connection frame (13) of one movable adjustment mechanism is fixedly connected to the bottom surface of the sliding platform (5), and the fixed connection frame (13) of the other movable adjustment mechanism is fixedly connected to the bottom surface of the sliding extension plate (9); the fixed connection frame (13) is located above the movable connection frame (14); a step turn block (17) is provided on the movable connection frame (14), and the step turn block (17) is rotatably connected to the fixed connection frame (13); the reset push assembly is composed of two connection blocks and four reset springs (18), the two connection blocks are symmetrically mounted on the fixed connection frame (13), and two reset springs (18) are symmetrically tilted on one side of the two connection blocks, and the other end of the reset spring (18) is fixed to the step turn block (17); A rotating cleaning assembly, a water-liquid flushing assembly, an airflow drying plate, and a coating assembly are sequentially arranged on opposite sides of the two coating plates (20); a reflux filtering assembly (25) is arranged below the water-liquid flushing assembly; The rotary cleaning assembly is connected to the side wall of the coating plate (20) for cleaning the anti-collision guardrail, and the water flushing assembly is used for spraying water on the anti-collision guardrail; the airflow drying plate is used for blowing the accumulated water on the anti-collision guardrail with air; the coating assembly coats the anti-collision guardrail with nano-corrosion coating; the reflux filtering assembly (25) receives the flowing water, filters the water, and then transmits it to the water flushing assembly; The coating assembly consists of two coating rollers (32), a coating scraper (33) and a plurality of coating nozzles (26); the two coating rollers (32) are rotatably mounted on a coating plate (20), and the coating rollers (32) are adjacent to an airflow drying plate; the coating scraper (33) is located on the other side of the coating roller (32), and a plurality of coating nozzles (26) are equidistantly mounted on the edge of the coating plate (20) and adjacent to the coating scraper (33); the coating plate (20) is provided with a plurality of first coating outlet holes (36) equidistantly between the coating scraper (33) and the coating roller (32); a scraping cleaning assembly is provided in the coating plate (20) at the two coating rollers (32); The scraping cleaning assembly consists of a ring plate coating brush (24), a cleaning recovery box (37) and a paint storage box (41); a cleaning scraper (39) for abutting and pressing the coating roller (32) is vertically provided on the cleaning recovery box (37); a baffle (40) is extended from one side wall of the cleaning recovery box (37); a plurality of filter boxes (38) are installed at equal intervals in the cleaning recovery box (37); the coating bristles of the ring plate coating brush (24) abut on the coating roller (32); a plurality of second paint outlet holes (42) for communicating with the paint storage box (41) are opened at equal intervals on the ring plate coating brush (24); the ring plate coating brush (24) abuts against the coating roller (32); On the side wall of the coating storage box (41), a recovery suction pump (43) is provided at the lower end of the coating storage box (41), and the feed pipe of the recovery suction pump (43) is connected to the bottom end of the cleaning recovery box (37); the excess coating on the coating roller (32) is scraped off by the cleaning scraper (39), and the scraped coating flows into the filter box (38). After being filtered by the filter box (38), the coating is sucked into the coating storage box (41) by the recovery suction pump (43) and reused. The coating in the coating storage box (41) adheres to the ring plate coating brush (24) through the second coating outlet (42), and new coating is added to the coating roller (32) through the ring plate coating brush (24).

2. The nano anti-corrosion coating equipment for highway bridge anti-collision guardrail according to claim 1 is characterized in that: The lower end of the movable connection frame (14) is symmetrically provided with two sliding grooves, and the upper end of the fixed lifting sleeve (19) is symmetrically provided with two sliders (21) for matching the two sliding grooves; the side ends of the two sliders (21) are both abutted with spring push rods, and the spring push rods include a movable extension rod, a support spring (22) and a connecting sleeve; the connecting sleeve is fixed in the sliding groove of the movable connection frame (14), and a support spring (22) for ejecting the movable extension rod is provided in the connecting sleeve, one end of the movable extension rod abuts against the side wall of the slider (21), and the other end of the movable extension rod is slidably connected in the connecting sleeve, one end of the support spring (22) is connected to the inner wall of the connecting sleeve, and the other end is connected to the movable extension rod.

3. The nano anti-corrosion coating equipment for highway bridge anti-collision guardrail according to claim 1 is characterized in that: A first transmission screw (10) is provided in the sliding platform (5) for horizontal rotation, and the first transmission screw (10) is threadedly provided on the sliding extension plate (9); a motor box (12) is provided on the top surface of the sliding platform (5); and a motor in the motor box (12) is connected to the first transmission screw (10).

4. The nano anti-corrosion coating equipment for highway bridge anti-collision guardrail according to claim 1 is characterized in that: The coating plate (20) is provided with a second transmission screw (15) for vertical rotation, the upper end of the second transmission screw (15) is threadedly inserted into the fixed lifting sleeve (19), and the upper end of the second transmission screw (15) is connected to a motor fixedly arranged in the fixed lifting sleeve (19); two guide rods (16) are symmetrically provided on both sides of the second transmission screw (15), and the two guide rods (16) are fixedly connected to the fixed lifting sleeve (19) and are slidably connected to the coating plate (20).

5. The nano-anticorrosion coating equipment for highway bridge anti-collision guardrail according to claim 1 is characterized in that: The rotating cleaning assembly consists of a cleaning brush belt (23) and a connecting seat, the connecting seat is connected to the side wall of the coating plate (20) through a plurality of fixing bolts, a plurality of electric friction wheels are rotatably provided on the connecting seat, the cleaning brush belt (23) is a ring structure, and the inner side surface of the cleaning brush belt (23) abuts against the electric friction wheel; when the electric friction wheel rotates, the cleaning brush belt (23) rotates accordingly, and the outer side surface of the cleaning brush belt (23) is a brush bristle, which is used to contact the anti-collision guardrail and brush the anti-collision guardrail.

6. The nano-anticorrosion coating equipment for highway bridge anti-collision guardrail according to claim 1 is characterized in that: The water flushing assembly consists of a curved vertical spray head (27) and a plurality of horizontal spray heads (28), wherein a plurality of flushing nozzles are evenly spaced between the vertical spray head (27) and the plurality of horizontal spray heads (28), and the vertical spray head (27) is mounted on the coating plate (20) between the rotating cleaning assembly and the plurality of horizontal spray heads (28); a plurality of airflow nozzles (35) are evenly spaced on the airflow drying plate, and the airflow nozzles (35) are opened obliquely downward.

7. The nano-anticorrosion coating equipment for highway bridge anti-collision guardrail according to claim 1 is characterized in that: The reflux filter assembly (25) consists of a receiving box, an abutting guide pad (29) and a filter plate (31). The receiving box is installed at the bottom end of the coating plate (20). The filter plate (31) is installed obliquely on the opening at the top end of the receiving box. The side end of the receiving box is provided with an abutting guide pad (29). The lower end of the airflow drying plate is provided with a slag discharge trough connected to the filter plate (31). A reflux suction pipe is provided in the receiving box, and a filter cartridge (30) is sleeved on the end of the reflux suction pipe. A snap-on cover plate (34) is hingedly installed at the bottom end of the receiving box.

8. A nano-anticorrosion coating method for highway bridge anti-collision guardrails, characterized in that: The nano-anticorrosion coating device for highway bridge anti-collision guardrail according to claim 7 comprises the following steps: Step 1: Control the support transport vehicle (1) to travel to the anti-collision guardrail, and adjust the height and spacing of the two coating plates (20) so that the first coating mechanism (6) and the second coating mechanism (7) are located on both sides of the anti-collision guardrail and clamp the anti-collision guardrail; Step 2: The supporting transport vehicle (1) is then started to drive the coating component to coat the anti-collision guardrail: first, the anti-collision guardrail is continuously swept by the rotating cleaning component, and then the water flushing component pressure-washes the anti-collision guardrail by spraying water; then the air drying plate passes through the anti-collision guardrail and sprays high-pressure gas to remove the water on the anti-collision guardrail; Step three, finally, the anti-collision guardrail is coated under the action of the coating assembly, firstly, the first layer of nano anti-corrosion layer is coated through the coating roller (32), and then the second layer of nano anti-corrosion layer is sprayed through the first coating outlet (36), and then the sprayed coating is scraped flat by the coating scraper (33), and then the anti-collision guardrail is sprayed with relatively dry coating through the coating nozzle (26) to accelerate the drying of the nano anti-corrosion layer; The excess paint on the coating roller (32) is scraped off by a cleaning scraper (39), and the scraped paint flows into the filter box (38). After being filtered by the filter box (38), the paint is recovered by a suction pump (43) and drawn into the paint storage box (41) for reuse. The paint in the paint storage box (41) adheres to the annular plate coating brush (24) through the second paint outlet (42), and new paint is added to the coating roller (32) through the annular plate coating brush (24).

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