Spraying device for excavator arm
By introducing activated carbon filters and a fan system into the spraying device, the health hazards of volatile organic compounds during the spraying process have been solved, achieving effective removal of harmful substances and environmentally friendly emissions, thus improving the safety of the spraying process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN KATSUSHIRO MASCH CO LTD
- Filing Date
- 2025-02-13
- Publication Date
- 2026-04-21
AI Technical Summary
When painting excavator arms, the solvents in the paint evaporate to form volatile organic compounds, which pose a potential health hazard and may cause symptoms such as headaches, dizziness, nausea, and respiratory irritation, and may even increase the risk of cancer.
A spraying device for excavator arms was designed, comprising a protective frame, an activated carbon filter, and a fan. Harmful substances generated during the spraying process are transported to a treatment chamber through an air inlet pipe, where they are adsorbed and purified by the activated carbon filter before being discharged into the environment. This avoids harm to human health and the environment and facilitates the replacement of the activated carbon filter.
It effectively removes harmful substances generated during the spraying process, protects human health and the environment, reduces pollution, and facilitates filter maintenance and replacement.
Smart Images

Figure CN224142587U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spraying technology, specifically to a spraying device for excavator arms. Background Technology
[0002] The excavator arm is a key component of an excavator, mainly used to perform tasks such as digging, loading, lifting, and transferring materials. Because the excavator arm often operates in a high-intensity working environment, especially when digging and handling rough materials, its surface is easily subjected to friction and impact. Spraying the outer surface of the excavator arm can improve its wear resistance, reduce damage caused by friction, and maintain the structural integrity of the excavator arm.
[0003] During the spraying process of excavator arms, especially when using oil-based or solvent-based paints, the solvents in the paint will evaporate to form volatile organic compounds (VOCs). VOCs pose a potential health hazard to humans. Long-term inhalation may lead to symptoms such as headaches, dizziness, nausea, and respiratory irritation, and may even increase the risk of cancer. Based on this, this solution provides a spraying device for excavator arms to address the aforementioned problems. Utility Model Content
[0004] To solve the above-mentioned technical problems, a spraying device for excavator arms is provided. This technical solution addresses the issue raised in the background art that during the spraying process of excavator arms, especially when using oil-based or solvent-based paints, the solvent in the paint will evaporate to form volatile organic compounds. Volatile organic compounds pose a potential hazard to human health, and long-term inhalation may lead to symptoms such as headaches, dizziness, nausea, and respiratory irritation, and may even increase the risk of cancer.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a spraying device for an excavator arm, comprising a base, a protective frame fixedly installed on the upper end of the base, a controller provided at the front end of the protective frame, a protective door rotatably installed on the right end of the protective frame via a hinge, a first handle fixedly installed on the front right side of the protective door, an extension plate fixedly connected to the left end of the base, a storage box fixedly connected to the front upper end of the extension plate, a pump fixedly connected to the rear upper end of the extension plate, the lower end of the pump fixedly connected to the upper end of the extension plate, and a rear end of the pump provided with... A support block is provided, with its lower end fixedly connected to the upper end of an extension plate. A processing box is fixedly connected to the upper end of the support block. A rectangular opening is provided at the rear end of the processing box, and a movable frame is slidably connected inside the rectangular opening. An activated carbon filter is provided inside the movable frame, and a second handle is fixedly installed at the rear end of the movable frame. A fan is provided on the left side of the processing box, and an air outlet pipe is fixedly connected to the input end of the fan. The right end of the air outlet pipe is connected to the interior of the processing box, and an air inlet pipe is fixedly connected to the right end of the processing box. The right end of the air inlet pipe is connected to the interior of a protective frame.
[0006] Preferably, the input end of the pump is fixedly connected to a first conduit, the front end of the first conduit is connected to the interior of the storage tank, the output end of the pump is fixedly connected to a second conduit, the upper end of the second conduit is fixedly connected to a horizontal pipe, and both ends of the horizontal pipe are fixedly connected to connecting pipes, which extend into the interior of the protective frame.
[0007] Preferably, rectangular grooves are provided on the inner walls of both the front and rear sides of the protective frame, and a first threaded rod is rotatably installed inside the rectangular grooves. A first motor is fixedly installed on both the front and rear sides of the upper end of the protective frame.
[0008] Preferably, the output end of the first motor extends into the interior of the rectangular slot and is fixedly connected to the upper end of the first threaded rod. The outer surface of the first threaded rod is threaded with a lifting block, and a lifting plate is fixedly connected between the two lifting blocks. The lifting plate slides inside the protective frame.
[0009] Preferably, the lower end of the lifting plate is provided with a first sliding groove on both the front and rear sides, and a second threaded rod is rotatably installed inside the first sliding groove. A second motor is fixedly installed on both the front and rear sides of the right end of the lifting plate, and the output end of the second motor extends into the interior of the first sliding groove and is fixedly connected to the right end of the second threaded rod.
[0010] Preferably, the outer surface of the second threaded rod is threadedly connected to a first slider, the lower end of the first slider is fixedly mounted with an electric telescopic rod, the output end of the electric telescopic rod is fixedly mounted with a spray holder, the inner side of the spray holder is fixedly connected with a plurality of spray nozzles, the left end of the spray holder is fixedly connected with a bellows, and the left end of the bellows is connected to the right end of the connecting pipe.
[0011] Preferably, a second sliding groove is provided at the lower middle part of the lifting plate, a third threaded rod is rotatably installed inside the second sliding groove, and a third motor is fixedly installed at the right middle part of the lifting plate.
[0012] Preferably, the output end of the third motor extends into the interior of the second sliding groove and is fixedly connected to the right end of the third threaded rod. The outer surface of the third threaded rod is threaded with a second slider. The lower end of the second slider is fixedly connected with a reinforcing plate. Connectors are fixedly installed on both the left and right sides of the reinforcing plate.
[0013] Compared with the prior art, this utility model provides a spraying device for excavator arms, which has the following beneficial effects:
[0014] When spraying paint on an excavator arm, the blower transports the harmful substances generated during the spraying process to the inside of the treatment box through the air inlet pipe. The activated carbon filter installed inside the treatment box can remove these harmful substances. Finally, the gas purified by adsorption is discharged into the environment, avoiding harm and pollution to the human body and the environment caused by the generated harmful gases. After long-term use, the activated carbon filter can be easily removed from the inside of the treatment box through the second handle movable frame, making it convenient to replace. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a three-dimensional structural schematic diagram from another perspective of the present invention;
[0017] Figure 3 This is a schematic diagram of the structure of the processing box in this utility model;
[0018] Figure 4 This is a schematic diagram of the internal structure of the protective frame in this utility model;
[0019] Figure 5 This is a schematic diagram of the structure of the lifting plate in this utility model;
[0020] Figure 6 This is a schematic diagram of the structure of the first sliding groove in this utility model;
[0021] Figure 7This is a schematic diagram of the structure of the second sliding groove in this utility model;
[0022] Figure 8 This is a schematic diagram of the internal structure of the processing box in this utility model.
[0023] The numbers on the map are:
[0024] 1. Base; 2. Protective frame; 3. Controller; 4. Extension plate; 5. Storage bin; 6. Protective door; 7. First handle; 8. Pump; 9. First conduit; 10. Second conduit; 11. Horizontal pipe; 12. Connecting pipe; 13. Support block; 14. Processing box; 15. Air inlet pipe; 16. Air outlet pipe; 17. Fan; 18. Rectangular opening; 19. Movable frame; 20. Activated carbon filter; 21. Second handle; 22. Lifting plate; 23. Rectangular groove; 24. First threaded rod; 25. Lifting block; 26. First motor; 27. First sliding groove; 28. Second threaded rod; 29. Second motor; 30. First slider; 31. Electric telescopic rod; 32. Spray holder; 33. Spray head; 34. Corrugated pipe; 35. Second sliding groove; 36. Third threaded rod; 37. Third motor; 38. Second slider; 39. Reinforcing plate; 40. Connector. Detailed Implementation
[0025] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.
[0026] Reference Figures 1-8As shown, a spraying device for an excavator arm includes a base 1. A protective frame 2 is fixedly installed on the upper end of the base 1. A controller 3 is provided at the front end of the protective frame 2. The controller 3 can be of model M340. Any existing controller 3 that can achieve this function is acceptable and is not limited. The controller 3 is electrically connected to a pump 8, a blower 17, a first motor 26, a second motor 29, and a third motor 37. A protective door 6 is rotatably installed on the right end of the protective frame 2 via a hinge. When the protective door 6 is opened, the protective door 6 is located on the lifting plate 22. On the outside, the lifting block 25 will not be obstructed from moving up and down. A first handle 7 is fixedly installed on the front right side of the protective door 6. An extension plate 4 is fixedly connected to the left end of the base 1. A storage box 5 is fixedly connected to the front upper end of the extension plate 4. A feed pipe is connected to the upper end of the storage box 5, and a sealing cap is threaded onto the upper upper surface of the feed pipe. A pump 8 is fixedly connected to the rear upper end of the extension plate 4. A first conduit 9 is fixedly connected to the input end of the pump 8. The front end of the first conduit 9 is connected to the interior of the storage box 5. A second conduit 10 is fixedly connected to the output end of the pump 8. A horizontal pipe 11 is fixedly connected to the upper end of the 0. Connecting pipes 12 are fixedly connected to both ends of the horizontal pipe 11, extending into the interior of the protective frame 2. The lower end of the pump 8 is fixedly connected to the upper end of the extension plate 4. A support block 13 is provided at the rear end of the pump 8. The lower end of the support block 13 is fixedly connected to the upper end of the extension plate 4. A processing box 14 is fixedly connected to the upper end of the support block 13. A rectangular opening 18 is provided at the rear end of the processing box 14. A movable frame 19 is slidably connected inside the rectangular opening 18. An activated carbon filter 20 is provided inside the movable frame 19. The surface of the activated carbon filter 20 has a large specific surface area, which can adsorb and aggregate volatile organic compounds. A second handle 21 is fixedly installed at the rear end of the movable frame 19. The activated carbon filter 20 can be removed from the inside of the treatment box 14 through the second handle 21 for easy replacement. A fan 17 is provided on the left side of the treatment box 14. The input end of the fan 17 is fixedly connected to the air outlet pipe 16. The right end of the air outlet pipe 16 is connected to the inside of the treatment box 14. An air inlet pipe 15 is fixedly connected to the right end of the treatment box 14. The right end of the air inlet pipe 15 is connected to the inside of the protective frame 2.
[0027] Reference Figures 4-7As shown, rectangular grooves 23 are provided on the inner walls of both the front and rear sides of the protective frame 2. A first threaded rod 24 is rotatably installed inside the rectangular grooves 23. A first motor 26 is fixedly installed on both the front and rear sides of the upper end of the protective frame 2. The output end of the first motor 26 extends into the interior of the rectangular grooves 23 and is fixedly connected to the upper end of the first threaded rod 24. A lifting block 25 is threadedly connected to the outer surface of the first threaded rod 24. When the lifting block 25 moves to the uppermost end of the rectangular groove 23, the lower end of the lifting plate 22 abuts against the upper end of the protective door 6. A lifting plate 22 is fixedly connected between the two lifting blocks 25. The lifting plate 22 slides inside the protective frame 2. A first sliding groove 27 is provided on both the front and rear sides of the lower end of the lifting plate 22. A second threaded rod 28 is rotatably installed inside the first sliding groove 27. A second motor 29 is fixedly installed on both the front and rear sides of the right end of the lifting plate 22. The output end of the second motor 29 extends into the interior of the first sliding groove 27 and is fixedly connected to the right end of the second threaded rod 28. The outer surface of the threaded rod 28 is threadedly connected to a first slider 30. An electric telescopic rod 31 is fixedly installed at the lower end of the first slider 30. A spray base 32 is fixedly installed at the output end of the electric telescopic rod 31. Several nozzles 33 are fixedly connected to the inner side of the spray base 32. A bellows 34 is fixedly connected to the left end of the spray base 32. The nozzles 33 can move left and right and up and down through the bellows 34. The left end of the bellows 34 is connected to the right end of the connecting pipe 12. A second sliding groove 35 is opened in the middle of the lower end of the lifting plate 22. A third threaded rod 36 is rotatably installed inside the second sliding groove 35. A third motor 37 is fixedly installed in the middle of the right end of the lifting plate 22. The output end of the third motor 37 extends into the interior of the second sliding groove 35 and is fixedly connected to the right end of the third threaded rod 36. A second slider 38 is threadedly connected to the outer surface of the third threaded rod 36. A reinforcing plate 39 is fixedly connected to the lower end of the second slider 38. Connecting parts 40 are fixedly installed on both the left and right sides of the reinforcing plate 39.
[0028] The working principle and usage process of this utility model are as follows: In use, the protective door 6 is opened, and the controller 3 controls the first motor 26 to drive the second threaded rod 28 to rotate. The rotation of the second threaded rod 28 drives the lifting block 25 to rotate, which in turn drives the lifting plate 22 to move downwards. After moving to the appropriate position, the two chains with hooks are passed through the two connecting pieces 40 respectively. Then, the hooks at both ends of the chains are hooked onto the excavator arm. Next, the first motor 26 drives the lifting block 25 to move upwards until the lifting block 25 reaches the uppermost end of the rectangular groove 23. At this time, the protective door 6 is closed. Then, the third motor 37 drives the third threaded rod 36 to rotate. The rotation of the third threaded rod 36 can drive the second slider 38 to move into the protective frame 2, which in turn drives the reinforcing plate 39 to move downwards. The downward movement of the reinforcing plate 39 can move the two connecting pieces 40 into the protective frame 2, thereby allowing the excavator arm hooked by the chains to move into the protective frame 2. After the excavator arm is moved into the protective frame 2, the protective door 6 is closed. At this time, the pump 8, through the first conduit 9, The second conduit 10, horizontal pipe 11, connecting pipe 12, and corrugated pipe 34 deliver the paint to the spray base 32. Then, the paint is sprayed onto the outer surface of the excavator arm through several nozzles 33. According to the size of the excavator arm, the electric telescopic rod 31 drives the spray base 32 to move up and down, moving the nozzles 33 to the appropriate positions so that the sprayed paint can evenly cover the outer surface of the excavator arm. Then, the second motor 29 drives the second threaded rod 28 to rotate. The rotation of the second threaded rod 28 can drive the first slider 30 to move left and right, so that the spray base 32 set at the lower end of the first slider 30 can move left and right, thereby evenly spraying the outer surface of the excavator arm. During the spraying process, the blower 17 delivers the volatile organic compounds generated during the spraying process to the inside of the treatment box 14 through the air inlet pipe 15. The activated carbon filter 20 set inside the treatment box 14 can adsorb them on the surface, thereby removing the volatile organic compounds from the air. The treated air is discharged outdoors through the air outlet pipe 16 and the blower 17 to avoid harmful substances from causing harm to the environment and human body.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A painting device for an excavator arm, characterized by: The system includes a base (1), a protective frame (2) fixedly installed on the upper end of the base (1), a controller (3) provided at the front end of the protective frame (2), a protective door (6) rotatably installed on the right end of the protective frame (2) via a hinge, a first handle (7) fixedly installed on the front right side of the protective door (6), an extension plate (4) fixedly connected to the left end of the base (1), a storage box (5) fixedly connected to the front upper end of the extension plate (4), a pump (8) fixedly connected to the rear upper end of the extension plate (4), the lower end of the pump (8) fixedly connected to the upper end of the extension plate (4), a support block (13) provided at the rear end of the pump (8), and the lower end of the support block (13) fixedly connected to the upper end of the extension plate (4). The upper end of the support block (13) is fixedly connected to a processing box (14). The rear end of the processing box (14) is provided with a rectangular opening (18). A movable frame (19) is slidably connected inside the rectangular opening (18). An activated carbon filter (20) is provided inside the movable frame (19). A second handle (21) is fixedly installed at the rear end of the movable frame (19). A fan (17) is provided on the left side of the processing box (14). The input end of the fan (17) is fixedly connected to an air outlet pipe (16). The right end of the air outlet pipe (16) is connected to the inside of the processing box (14). The right end of the processing box (14) is fixedly connected to an air inlet pipe (15). The right end of the air inlet pipe (15) is connected to the inside of the protective frame (2).
2. A painting device for an excavator arm according to claim 1, characterized in that: The input end of the pump (8) is fixedly connected to a first conduit (9), the front end of the first conduit (9) is connected to the interior of the storage box (5), the output end of the pump (8) is fixedly connected to a second conduit (10), the upper end of the second conduit (10) is fixedly connected to a horizontal pipe (11), and both the left and right ends of the horizontal pipe (11) are fixedly connected to connecting pipes (12), the connecting pipes (12) extend into the interior of the protective frame (2).
3. A painting device for an excavator arm according to claim 1, characterized in that: The protective frame (2) has rectangular grooves (23) on both the front and rear inner walls. A first threaded rod (24) is rotatably installed inside the rectangular groove (23). A first motor (26) is fixedly installed on both the front and rear sides of the upper end of the protective frame (2).
4. A spraying device for an excavator arm according to claim 3, characterized in that: The output end of the first motor (26) extends into the interior of the rectangular groove (23) and is fixedly connected to the upper end of the first threaded rod (24). The outer surface of the first threaded rod (24) is threaded with a lifting block (25). A lifting plate (22) is fixedly connected between the two lifting blocks (25). The lifting plate (22) slides inside the protective frame (2).
5. A painting device for an excavator arm according to claim 4, characterized in that: The lower end of the lifting plate (22) is provided with a first sliding groove (27) on both the front and rear sides. A second threaded rod (28) is rotatably installed inside the first sliding groove (27). A second motor (29) is fixedly installed on both the front and rear sides of the right end of the lifting plate (22). The output end of the second motor (29) extends into the interior of the first sliding groove (27) and is fixedly connected to the right end of the second threaded rod (28).
6. A painting device for an excavator arm according to claim 5, characterized in that: The outer surface of the second threaded rod (28) is threadedly connected to a first slider (30). An electric telescopic rod (31) is fixedly installed at the lower end of the first slider (30). A spray holder (32) is fixedly installed at the output end of the electric telescopic rod (31). A plurality of nozzles (33) are fixedly connected to the inner side of the spray holder (32). A corrugated pipe (34) is fixedly connected to the left end of the spray holder (32). The left end of the corrugated pipe (34) is connected to the right end of the connecting pipe (12).
7. A painting device for an excavator arm according to claim 4, characterized in that: The lower end of the lifting plate (22) is provided with a second sliding groove (35), and a third threaded rod (36) is rotatably installed inside the second sliding groove (35). A third motor (37) is fixedly installed at the right end of the lifting plate (22).
8. A painting device for an excavator arm according to claim 7, characterized in that: The output end of the third motor (37) extends into the interior of the second sliding groove (35) and is fixedly connected to the right end of the third threaded rod (36). The outer surface of the third threaded rod (36) is threadedly connected to the second slider (38). The lower end of the second slider (38) is fixedly connected to the reinforcing plate (39). Connectors (40) are fixedly installed on both the left and right sides of the reinforcing plate (39).