Anti-corrosion spraying device for maintenance of lagging jack trolley

Abstract

The invention discloses an anti-corrosion spraying device for arch frame trolley maintenance, and relates to the technical field of spraying, the anti-corrosion spraying device comprises a top frame, the top frame is slidably connected with a guide frame in the vertical direction, the guide frame is provided with guide grooves symmetrically distributed along the guide frame, the top frame is slidably connected with blocking frames symmetrically distributed along the top frame in the horizontal direction, and the blocking frames are provided with guide grooves symmetrically distributed along the guide frame. The blocking frame is connected with a guide frame in the vertical direction in a sliding mode, the blocking frame is connected with sliding rods symmetrically distributed along the blocking frame in a sliding mode, and the sliding rods are connected with the adjacent guide grooves in a sliding mode. The top frame is matched with the blocking frames on the left side and the right side to seal the local top face of the telescopic arm, meanwhile, the guide frame and the roller frame are responsible for sealing the left side face and the right side face, and therefore it is guaranteed that in the spraying process, paint on the three spraying faces of the telescopic arm cannot splash to some key parts of an arch frame trolley all around, and the arch frame trolley is prevented from being polluted or blocked by the paint; therefore, the functions of the parts are prevented from being damaged or failed, and further system faults are prevented from being caused.

Description

Technical Field

[0001] The invention relates to the technical field of spraying, and in particular to an anti-corrosion spraying device for maintaining an arch trolley. Background Art

[0002] The anti-corrosion spray device for arch trolley maintenance is a device specially designed for efficient anti-corrosion treatment of important components such as the telescopic arm of the arch trolley. It forms a uniform and firm anti-corrosion coating on the metal surface through precise spraying technology, effectively preventing rust and environmental erosion. At the same time, it has good adhesion and weather resistance, ensuring the long-term stable operation of the arch trolley under harsh working conditions.

[0003] When the outer wall of the telescopic arm of the arch trolley is maintained by anti-corrosion spraying (such as epoxy primer), except for the bottom of the telescopic arm (the bottom area is often greatly affected by gravity and is prone to paint accumulation or sagging, so more delicate and cautious spraying methods, such as manual application, are adopted), the other sides of the telescopic arm will be directly sprayed over a large area. However, some key parts of the arch trolley, such as electrical components, hydraulic interfaces, seals, etc., if not shielded, may be contaminated or blocked by splashed paint during the spraying process, causing these components to be damaged or fail, and then cause system failure. Therefore, key parts are usually routinely shielded during the spraying process. However, due to the complex structure of the arch trolley, it is difficult for ordinary protection to achieve comprehensive and effective shielding, which increases the difficulty and complexity of maintenance work.

[0004] Based on the above situation, the present invention proposes an anti-corrosion spraying device for maintaining an arch trolley. Summary of the invention

[0005] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides an anti-corrosion spraying device for maintaining an arch trolley.

[0006] The cam is connected to the guide frame by the upper and lower frames, and the cam is connected to the guide frame by the upper and lower frames, and the cam is connected to the guide frame by the upper and lower frames.

[0007] Optionally, adjacent guide grooves of the guide frame are distributed in an inverted figure eight shape.

[0008] Optionally, a first bolt is further included, wherein the first bolt is threadedly connected between the top frame and the guide frame, and a fastening groove is formed on a side of the top frame close to the first bolt.

[0009] Optionally, a guide rod corresponding to the baffle frame is further included, and both ends of the guide rod are respectively fixedly connected to the adjacent baffle frame and the guide frame. A third spring is wound around the guide rod, and both ends of the third spring are respectively fixedly connected to the adjacent baffle frame and the guide frame.

[0010] Optionally, it also includes a fixed rod corresponding to the baffle frame, the fixed rod is fixedly connected to the corresponding baffle frame, the telescopic nozzle is fixedly connected with a one-way valve symmetrically distributed along the telescopic nozzle, the guide frame is close to the adjacent one-way valve and is slidably connected to a pressure frame in the up and down directions, the pressure frame contacts the adjacent fixed rod, the pressure frame is slidably connected to a sealing frame in the up and down directions, the guide frame is close to the adjacent sealing frame. A discharge port is opened on the side, the sealing frame blocks the adjacent discharge port, and a tension spring is fixed between the sealing frame and the adjacent pressure frame.

[0011] Optionally, the fixing rod is configured to be L-shaped, and the lower portion of the fixing rod contacts the bottom of the adjacent pressing frame.

[0012] Optionally, the one-way valve limits the paint from flowing into the telescopic nozzle in one direction.

[0013] Optionally, it also includes a U-shaped scraper rod symmetrically distributed along the top frame, the top frame has grooves symmetrically distributed along the top frame, the U-shaped scraper rod is slidably connected to the groove, the U-shaped scraper rod is provided with protrusions symmetrically distributed along the U-shaped scraper rod, the protrusions slide in the groove, and are used to limit the U-shaped scraper rod from being separated from the groove.

[0014] Optionally, a second bolt corresponding to the retaining frame is further included, the second bolt is threadedly connected to the corresponding retaining frame, the second bolt is slidably connected to a pull rod along the up and down directions, a hanging groove is provided on the side of the pull rod close to the second bolt, and a wedge surface is provided on the side of the pull rod away from the second bolt, and the wedge surface of the pull rod is squeezed and fitted with the adjacent magnet.

[0015] Optionally, it also includes a clamping column symmetrically distributed along the guide frame, the clamping column is slidably connected to the guide frame, the top frame is provided with a clamping hole corresponding to the clamping column, when the clamping hole is aligned with the corresponding clamping column, the clamping column is clamped into the clamping hole, and a fourth spring is fixed between the clamping column and the guide frame.

[0016] The beneficial effects of the present invention are as follows: the present invention realizes the closure of the partial top surface of the telescopic arm by cooperating with the retaining frames on the left and right sides of the top frame, while the guide frame and the roller frame are responsible for the closure of the left and right sides, thereby ensuring that during the spraying process, the paint on the three spraying surfaces of the telescopic arm will not splash around on some key parts of the arch frame trolley to prevent them from being contaminated or blocked by the paint, thereby avoiding damage or failure of the functions of these components, and further avoiding causing system failures.

[0017] The present invention enables the guide frame to automatically adapt to the different sizes of each section of the telescopic arm and perform dynamic closing adjustment through the coordinated work of the slide rod, the first spring and the magnet, thereby ensuring that a good closing effect can be achieved on arm sections of different thicknesses.

[0018] With the help of the roller, the device of the present invention can move smoothly along the telescopic arm and continuously complete the spraying of multiple local areas. It is suitable for long-distance or large-area spraying tasks of the telescopic arm. At the same time, when transitioning from one arm section to an inner arm section, the first spring will automatically adaptively partially rebound and push the retaining frame to slide further to the middle, ensuring that the sealing effect is not affected.

[0019] The present invention can effectively collect and return excess paint through a recovery system composed of a sealing frame, a pressure frame, a tension spring and a one-way valve, thereby avoiding waste of paint and preventing paint from flowing out and contaminating key parts of the arch frame trolley when the device is disassembled.

[0020] The present invention effectively collects and processes excess paint on the top of the telescopic arm through the design of the U-shaped scraper rod and the groove, further improving the paint utilization rate and keeping the working environment clean and tidy.

[0021] After the magnet of the present invention contacts the bottom of the telescopic arm, it can be separated from the bottom under the action of the second bolt and the pull rod, thereby avoiding mutual wear caused by sliding of the magnet and extending the service life of the magnet and the telescopic arm.

[0022] The present invention uses the design of the clamping column and the fourth spring so that the top frame can be automatically locked when it descends to the limit position. In this way, when tightening the first bolt, there is no need to manually press the guide frame downward. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the top frame, the guide frame and the retaining frame separated according to the present invention.

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the telescopic nozzle, roller frame, magnet and other components of the present invention.

[0026] Figure 4It is a three-dimensional structural schematic diagram of the guide rod, the third spring, the fixing rod and other components of the present invention.

[0027] Figure 5 It is a three-dimensional structural schematic diagram of components such as a pressing frame, a sealing frame and a tension spring of the present invention.

[0028] Figure 6 It is a three-dimensional structural schematic diagram of the retaining frame, guide frame, U-shaped scraper rod and other components of the present invention.

[0029] Figure 7 It is a three-dimensional structural schematic diagram of the top frame, U-shaped scraper rod and protrusion of the present invention.

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of the magnet, the pull rod, the second bolt and other components of the present invention.

[0031] Fig. 9 It is a three-dimensional structural schematic diagram of the guide frame, the clamping column, the fourth spring and other components of the present invention.

[0032] In the above drawings: 1-top frame, 2-guide frame, 201-first bolt, 202-fastening groove, 3-blocking frame, 4-guide frame, 5-sliding rod, 6-first spring, 7-telescopic nozzle, 8-roller frame, 9-magnet, 10-second spring, 11-guide rod, 12-third spring, 13-fixing rod, 14-check valve, 15-pressure frame, 16-sealing frame, 17-tension spring, 18-U-shaped scraper rod, 181-bump, 182-groove, 19-pull rod, 20-second bolt, 21-stud, 22-fourth spring. DETAILED DESCRIPTION

[0033] The preferred technical solutions of the present invention are described in detail below with reference to the accompanying drawings.

[0034] Embodiment 1: An anti-corrosion spraying device for arch trolley maintenance, combined with the attached Figure 1 To Attachment Figure 3, including a top frame 1, the top frame 1 is slidably connected to a guide frame 2 along the up and down direction, the front and rear sides of the guide frame 2 are provided with guide grooves symmetrically distributed along the left and right sides of the guide frame 2, the adjacent guide grooves of the guide frame 2 are distributed in an inverted eight-shaped shape, a first bolt 201 is threadedly connected between the top frame 1 and the guide frame 2, a fastening groove 202 is provided on the upper right side of the top frame 1, the top frame 1 is slidably connected to a baffle frame 3 symmetrically distributed along the left and right sides of the top frame 1, the top frame 1 cooperates with the baffle frames 3 on the left and right sides to partially close the top of the telescopic arm, the baffle frame 3 is slidably connected to a guide frame 4 along the up and down direction, the baffle frame 3 is slidably connected to a slide bar 5 symmetrically distributed along the front and rear sides of the baffle frame 3 along the left and right direction, and the slide bar 5 is slidably connected to the guide groove adjacent to the guide frame 2 A first spring 6 is fixedly connected between the slide bar 5 and the adjacent baffle frame 3, a telescopic nozzle 7 is fixedly connected between the top frame 1 and the left and right guide frames 4, the telescopic nozzle 7 is arranged in an inverted U shape, the lateral section on the upper side of the telescopic nozzle 7 can be telescoped left and right, the longitudinal sections on the left and right sides of the telescopic nozzle 7 can be telescoped up and down, the top middle of the telescopic nozzle 7 is externally connected to a paint sprayer, the front and rear parts of the lower side of the guide frame 2 and the lower side of the guide frame 4 are fixedly connected with a roller frame 8, the guide frame 4 cooperates with the adjacent baffle frame 3 and the roller frame 8 to partially close the side of the telescopic arm, two rollers are installed on the roller frame 8, a magnet 9 is slidably connected to the roller frame 8 of the guide frame 4 along the up and down direction, and a second spring 10 is fixedly connected between the magnet 9 and the adjacent roller frame 8.

[0035] First, place the entire device horizontally on the top of the outermost arm section of the telescopic arm of the arch trolley, so that the guide frame 2 and the roller frame 8 on the guide frame 2 are in contact with the top of the telescopic arm, and then press the top frame 1 downward, so that the retaining frames 3, guide frames 4, slide bars 5, first springs 6, magnets 9 and second springs 10 on the left and right sides move downward synchronously, and the left and right sides of the upper part of the telescopic nozzle 7 are compressed toward the middle. In the process of moving downward, the slide bar 5 is also moved toward the middle under the influence of the guide groove of the guide frame 2. The slide bar 5 drives the retaining frame 3 to move toward the middle of the top frame 1 through the first spring 6, thereby driving the guide frame 4 to move toward the middle until it contacts the side of the telescopic arm. The guide frame 4 drives the roller frame 8 and magnet 9 thereon to move toward the middle to the bottom of the telescopic arm. Under the magnetic attraction of the magnet 9 and the telescopic arm, the magnet 9 moves upward until it contacts the bottom of the telescopic arm, thereby driving the roller frame 8 on the guide frame 4 to move upward until it contacts the bottom of the telescopic arm, thereby driving The guide frame 4 slides upward relative to the retaining frame 3, and the left and right sides of the lower part of the telescopic nozzle 7 are compressed upward, so that the guide frame 4 cooperates with the retaining frame 3 and the roller frame 8 to achieve the effect of closing the left and right sides of the telescopic arm. At this time, the top frame 1 has not yet dropped to the limit, so the top frame 1 continues to be pressed downward. Due to the blocking effect of the side of the telescopic arm, the retaining frame 3 and the guide frame 4 cannot continue to move toward the middle, so only the slide bar 5 continues to slide toward the middle relative to the retaining frame 3, and the first spring 6 is compressed until the top frame 1 drops to contact the top of the retaining frames 3 on the left and right sides. In this way, the top frame 1 cooperates with the retaining frames 3 on the left and right sides to achieve the effect of closing the top surface of the telescopic arm; after completing the above-mentioned closing operation, tighten the first bolt 201, the fastening groove 202 can prevent the first bolt 201 from loosening easily, and the telescopic nozzle 7 is externally connected to the paint sprayer, so that the paint is evenly sprayed on the top surface and left and right sides of the telescopic arm through the telescopic nozzle 7, achieving a uniform painting effect.

[0036] After spraying the three surfaces of the local area, the entire device is pushed forward by the width of a guide frame 2 with the help of the roller, and the three surfaces of the next local area are continued to be sprayed, and this process is repeated until the entire section of the telescopic arm is sprayed. In this process, since the telescopic arm gradually becomes thinner from the outermost layer to the innermost layer, that is, the thickness of each arm section is reduced successively so that it can be nested in the previous arm section, therefore, when the entire device is pushed forward, if the entire device transitions from one arm section of the telescopic arm to the inner arm section, the first spring 6 will adaptively partially rebound and push the retaining frame 3 to slide further toward the middle along the top frame 1, thereby driving the guide frame 4 to move further toward the middle until it contacts the side of the inner arm section of the telescopic arm. At the same time, the magnet 9 drives the roller frame 8 thereon to move further upward through the second spring 10 until it contacts the bottom surface of the inner arm section. In this way, it can automatically adapt to the different sizes of each section of the telescopic arm for dynamic closing adjustment.

[0037] Embodiment 2: Under the effect of embodiment 1, combined with the attached Figure 4, and also includes a guide rod 11 corresponding to the baffle frame 3, the upper and lower ends of the guide rod 11 are respectively fixedly connected to the adjacent baffle frame 3 and the guide frame 4, a third spring 12 is wound around the guide rod 11, and the upper and lower ends of the third spring 12 are respectively fixedly connected to the adjacent baffle frame 3 and the guide frame 4.

[0038] Combined with Figure 5 , and also includes a fixed rod 13 corresponding to the retaining frame 3, the fixed rod 13 is set to an L shape, the fixed rod 13 is fixedly connected to the bottom of the corresponding retaining frame 3, and the bottom of the telescopic nozzle 7 is fixedly connected to a one-way valve 14 symmetrically distributed along the telescopic nozzle 7. The one-way valve 14 limits the one-way flow of paint into the telescopic nozzle 7. The side of the guide frame 4 close to the adjacent one-way valve 14 is slidably connected to a pressing frame 15 in the up and down directions. The lower part of the fixed rod 13 contacts the bottom of the adjacent pressing frame 15, and the pressing frame 15 is slidably connected to a sealing frame 16 in the up and down directions. A discharge port is opened on the side of the guide frame 4 close to the adjacent sealing frame 16. The sealing frame 16 blocks the bottom of the adjacent discharge port, and a tension spring 17 is fixedly connected between the sealing frame 16 and the adjacent pressing frame 15.

[0039] Initially, the sealing frame 16 blocks the discharge port of the guide frame 4, the fixed rod 13 presses the pressing frame 15 upward, and the tension spring 17 is in a stretched state. When the guide frame 4 moves upward, the one-way valve 14, the pressing frame 15, the sealing frame 16 and the tension spring 17 move upward as a whole, and the third spring 12 is compressed. When the pressing frame 15 moves upward and disengages from the fixed rod 13, the pressing frame 15, the sealing frame 16 and the tension spring 17 move downward as a whole under the action of gravity, so that the sealing frame 16 no longer blocks the discharge port of the guide frame 4. At the same time, the tension spring 17 is reset to make the pressing frame 15 slide downward relative to the sealing frame 16. Afterwards, during the spraying process and in the process of pushing the entire device forward, the excess paint dripped from the telescopic nozzle 7 and scraped off by the guide frame 4 will fall downward through the discharge port of the guide frame 4 onto the sealing frame 16, and then flow to the pressing frame 15, so that the excess paint is collected in the lower part of the guide frame 4 between the sealing frame 16 and the pressing frame 15.

[0040] When the device is removed, the guide frame 4 moves downward relative to the retaining frame 3 under the action of gravity, and the third spring 12 resets the auxiliary guide frame 4 to move downward, and the guide frame 4 drives the one-way valve 14, the pressure frame 15, the sealing frame 16 and the tension spring 17 to move downward as a whole. When the pressure frame 15 moves downward and contacts the fixed rod 13, it is blocked by the fixed rod 13, and the pressure frame 15, the sealing frame 16 and the tension spring 17 first move upward relative to the guide frame 4 as a whole, so that the sealing frame 16 blocks the discharge port of the guide frame 4 again, and the pressure frame 15 slides upward relative to the sealing frame 16, and the tension spring 17 resumes the stretched state. The pressure frame 15 pushes the excess paint collected between the sealing frame 16 and the pressure frame 15 upward into the one-way valve 14, and then flows back into the telescopic nozzle 7 through the one-way valve 14. In this way, the effect of automatically recovering the excess paint on the left and right sides of the telescopic arm is achieved, which not only avoids the waste of paint, but also prevents the excess paint accumulated in the guide frame 4 from flowing out and polluting the key parts of the arch frame trolley when the device is removed.

[0041] Combined with Figure 6 and attached Figure 7 , and also includes a U-shaped scraper 18 symmetrically distributed along the top frame 1. A groove 182 symmetrically distributed along the front and back of the top frame 1 is opened on the inner side of the lower part of the top frame 1. The U-shaped scraper 18 is slidably connected to the groove 182. A protrusion 181 symmetrically distributed along the U-shaped scraper 18 is provided on the top of the U-shaped scraper 18. The protrusion 181 slides in the groove 182 to prevent the U-shaped scraper 18 from escaping from the groove 182.

[0042] When the baffle frame 3 drives the guide frame 4 to move toward the middle, the guide frame 4 will first contact the side of the U-shaped scraper 18 close to the top frame 1, and then drive the U-shaped scraper 18 to move toward the middle along the groove 182. When the telescopic nozzle 7 sprays the top of the telescopic arm, excess paint will be introduced into the groove 182, and the U-shaped scraper 18 on the left and right sides can close the left and right sides of the groove 182 to prevent the paint collected in the groove 182 from flowing out from the left and right ends of the groove 182. When the baffle frame 3 drives the guide frame 4 to move further toward the middle, the guide frame 4 will also drive the U-shaped scraper 18 to move toward the middle along the groove 182, thereby squeezing the paint in the groove 182 into the guide frame 4, thereby achieving the effect of recycling excess paint on the top of the telescopic arm.

[0043] After removing this device, press down the guide frame 2, and then pull the top frame 1 upward, so that the slide bar 5 drives the retaining frame 3 to move to both sides, thereby driving the guide frame 4 to move to both sides. During this process, the retaining frame 3 will first contact the side of the U-shaped scraper 18 away from the top frame 1, and then drive the U-shaped scraper 18 to move outward along the groove 182. The protrusion 181 can prevent the U-shaped scraper 18 from moving excessively outward and disengaging from the groove 182.

[0044] Embodiment 3: Under the effect of embodiment 2, combined with the attached Figure 8, and also includes a second bolt 20 corresponding to the retaining frame 3, the second bolt 20 is threadedly connected to the corresponding retaining frame 3, the second bolt 20 is slidably connected to a pull rod 19 along the up and down directions, a hanging groove is opened on the side of the pull rod 19 close to the second bolt 20, and a wedge surface is provided on the side of the pull rod 19 away from the second bolt 20, and the wedge surface of the pull rod 19 is squeezed and matched with the adjacent magnet 9.

[0045] When the magnet 9 moves upward, the roller frame 8 on the guide frame 4 drives the pull rod 19 to move upward relative to the second bolt 20. After the magnet 9 is attracted upward to the bottom of the telescopic arm, the second bolt 20 is tightened inward. The second bolt 20 pushes the pull rod 19 to move to the side close to the adjacent guide frame 4. The wedge-shaped surface of the pull rod 19 squeezes the magnet 9 to slide downward relative to the adjacent roller frame 8, and the second spring 10 is compressed, so that the magnet 9 is separated from the bottom of the telescopic arm. In this way, there is no need to worry about the guide frame 4 sliding downward relative to the retaining frame 3 due to insufficient magnetic attraction during the spraying process, and the magnet 9 can be prevented from wearing each other due to sliding at the bottom of the telescopic arm in the process of pushing the entire device forward. When the forward movement stops, the second bolt 20 is loosened again and the pull rod 19 is pushed outward. The wedge-shaped surface of the pull rod 19 gradually loosens the magnet 9, and the second spring 10 resets and drives the magnet 9 to move upward, so that the magnet 9 and the guide frame 4 can move further upward.

[0046] Embodiment 4: Under the effect of embodiment 3, combined with the attached Fig. 9 , and also includes a clamping column 21 symmetrically distributed along the front and back of the guide frame 2, the clamping column 21 is slidably connected to the guide frame 2, and the top frame 1 is provided with a clamping hole corresponding to the clamping column 21. When the clamping hole moves downward to align with the corresponding clamping column 21, the clamping column 21 is clamped into the clamping hole, and a fourth spring 22 is fixedly connected between the clamping column 21 and the guide frame 2.

[0047] When the top frame 1 is pressed downward, the top frame 1 contacts the clamping column 21 and squeezes the clamping column 21 to slide toward the side of the compressed fourth spring 22. When the top frame 1 drops to contact the top of the telescopic arm, the clamping holes of the top frame 1 drop to align with the corresponding clamping column 21, and the fourth spring 22 resets to drive the clamping column 21 to insert into the corresponding clamping hole. In this way, when tightening the first bolt 201, there is no need to manually press the guide frame 2 downward.

[0048] It should be understood that this embodiment is only used to illustrate the present invention and is not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope limited by the appended claims of the application.

Claims

1. An anti-corrosion spraying device for arch trolley maintenance, characterized in that it includes A top frame (1) is provided, wherein the top frame (1) is slidably connected to a guide frame (2) in the up-down direction, the guide frame (2) is provided with guide grooves symmetrically distributed along the guide frame (2), the top frame (1) is slidably connected to a baffle frame (3) symmetrically distributed along the top frame (1) in the horizontal direction, the baffle frame (3) is slidably connected to a guide frame (4) in the up-down direction, the baffle frame (3) is slidably connected to a slide bar (5) symmetrically distributed along the baffle frame (3), the slide bar (5) is slidably connected to an adjacent guide groove, and the slide bar (5) is slidably connected to an adjacent guide groove. A first spring (6) is fixedly connected between the rod (5) and the adjacent baffle frame (3), a telescopic nozzle (7) is fixedly connected between the top frame (1) and all the guide frames (4), the guide frame (2) and the guide frame (4) are both fixedly connected to at least one roller frame (8), at least one roller is mounted on the roller frame (8), a magnet (9) is slidably connected to the roller frame (8) of the guide frame (4), and a second spring (10) is fixedly connected between the magnet (9) and the adjacent roller frame (8).

2. According to the anti-corrosion spraying device for arch trolley maintenance as claimed in claim 1, it is characterized in that: Adjacent guide grooves of the guide frame (2) are distributed in an inverted figure eight shape.

3. The anti-corrosion spraying device for arch trolley maintenance according to claim 2 is characterized in that: It also includes a first bolt (201), the first bolt (201) being threadedly connected between the top frame (1) and the guide frame (2), and a fastening groove (202) is formed on a side of the top frame (1) close to the first bolt (201).

4. The anti-corrosion spraying device for arch trolley maintenance according to claim 3 is characterized in that: It also includes a guide rod (11) corresponding to the baffle frame (3), the two ends of the guide rod (11) being respectively fixedly connected to the adjacent baffle frame (3) and the guide frame (4), the guide rod (11) being wound with a third spring (12), the two ends of the third spring (12) being respectively fixedly connected to the adjacent baffle frame (3) and the guide frame (4).

5. The anti-corrosion spraying device for arch trolley maintenance according to claim 4 is characterized in that: It also includes a fixing rod (13) corresponding to the retaining frame (3), the fixing rod (13) being fixedly connected to the corresponding retaining frame (3), the telescopic nozzle (7) being fixedly connected to a one-way valve (14) symmetrically distributed along the telescopic nozzle (7), the guide frame (4) being slidably connected to a pressing frame (15) in the up-down direction on the side close to the adjacent one-way valve (14), the pressing frame (15) being in contact with the adjacent fixing rod (13), the pressing frame (15) being slidably connected to a sealing frame (16) in the up-down direction, the guide frame (4) being provided with a discharge port on the side close to the adjacent sealing frame (16), the sealing frame (16) blocking the adjacent discharge port, and a tension spring (17) being fixedly connected between the sealing frame (16) and the adjacent pressing frame (15).

6. The anti-corrosion spraying device for arch trolley maintenance according to claim 5 is characterized in that: The fixing rod (13) is configured to be L-shaped, and the lower portion of the fixing rod (13) contacts the bottom of the adjacent pressing frame (15).

7. The anti-corrosion spraying device for arch trolley maintenance according to claim 6 is characterized in that: The one-way valve (14) limits the paint from flowing into the telescopic nozzle (7) in one direction.

8. The anti-corrosion spraying device for arch trolley maintenance according to claim 7 is characterized in that: It also includes a U-shaped scraper (18) symmetrically distributed along the top frame (1); the top frame (1) is provided with a groove (182) symmetrically distributed along the top frame (1); the U-shaped scraper (18) is slidably connected to the groove (182); the U-shaped scraper (18) is provided with a protrusion (181) symmetrically distributed along the U-shaped scraper (18); the protrusion (181) slides in the groove (182) to limit the U-shaped scraper (18) from leaving the groove (182).

9. The anti-corrosion spraying device for arch trolley maintenance according to claim 8, characterized in that: It also includes a second bolt (20) corresponding to the retaining frame (3), the second bolt (20) being threadedly connected to the corresponding retaining frame (3), the second bolt (20) being slidably connected to a pull rod (19) in the up-down direction, a hanging groove being provided on a side of the pull rod (19) close to the second bolt (20), a wedge-shaped surface being provided on a side of the pull rod (19) away from the second bolt (20), the wedge-shaped surface of the pull rod (19) being pressed and fitted with the adjacent magnet (9).

10. The anti-corrosion spraying device for arch trolley maintenance according to claim 9, characterized in that: It also includes clamping columns (21) symmetrically distributed along the guide frame (2), the clamping columns (21) being slidably connected to the guide frame (2), the top frame (1) being provided with clamping holes corresponding to the clamping columns (21), and when the clamping holes are aligned with the corresponding clamping columns (21), the clamping columns (21) are clamped into the clamping holes, and a fourth spring (22) is fixedly connected between the clamping columns (21) and the guide frame (2).

Images