High-safety clean crane and processing equipment thereof

Abstract

The application belongs to the technical field of crane processing, and discloses a high-safety clean crane and a processing equipment thereof, which comprises a cross beam and a hoisting rail, a brushing assembly is installed on the outside of the cross beam through the hoisting rail, the brushing assembly comprises two spraying mechanisms arranged on the front and back sides of the cross beam, an installation frame is connected to the top of the spraying mechanism, two transmission mechanisms are movably installed in the inside of each spraying mechanism, a power assembly is connected between the two transmission mechanisms on one side of the spraying mechanism through a transmission belt, and two cleaning pipes are arranged on the top of the installation frame. The application automatically completes continuous brushing of the inner wall of the hoisting rail through cooperation of the spraying mechanism and the transmission mechanism, thereby improving work efficiency and effectively reducing the safety hidden danger of worker operation.

Description

Technical Field

[0001] This invention belongs to the field of crane processing technology, specifically a high-safety and clean crane and its processing equipment. Background Technology

[0002] Electric single-girder cranes are widely used in factories, warehouses, material yards, and other locations for lifting and transporting goods. However, they are prohibited from use in flammable, explosive, or corrosive environments. They are available in both ground and aerial operation modes. Because the crane beam is subjected to the heavy pressure and friction of moving equipment year-round, the protective paint on the beam's rail surface peels off quickly, leading to rapid rusting. Furthermore, dust and water stains easily accumulate inside the rails, accelerating beam damage. This not only shortens the service life but also poses significant safety hazards. Therefore, regular maintenance of the crane beam surface is necessary, with the most effective method being the application of protective paint. However, current technology mostly involves manual painting, which is unsafe. The manual painting speed is inconsistent, requiring the crane basket carrying workers to constantly move and stop, further complicating the operation process, slowing down work efficiency, and increasing the risk factor. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] To address the problems mentioned in the background section, this invention provides a high-safety clean crane and its processing equipment, which has the advantage of high safety.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-safety clean crane and its processing equipment, comprising a crossbeam and a hanging rail. A coating assembly is mounted on the outside of the crossbeam via the hanging rail. The coating assembly includes two spraying mechanisms disposed on the front and rear sides of the crossbeam. A mounting frame is connected to the top of each spraying mechanism. Two left and right transmission mechanisms are movably installed inside each spraying mechanism. A power assembly is connected between the two transmission mechanisms located on one of the left and right sides of the two spraying mechanisms via a transmission belt. Two left and right cleaning pipes are disposed on the top of the mounting frame. An extension frame is connected to the bottom of the spraying mechanism. Two left and right spraying pipes are disposed at the bottom of the extension frame. A pumping assembly is mounted on the top of the mounting frame. Two valve assemblies are connected to the discharge end of the pumping assembly. The two ends of the two valve assemblies are respectively connected to the left and right cleaning pipes or spraying pipes.

[0007] Preferably, the power assembly consists of a power motor, transmission rods, a positioning frame, and a drive pulley. The power motor and the positioning frame are mounted on the top of the mounting frame. Each end of the output shaft of the drive pulley is connected to a transmission rod. The positioning frame is rotatably sleeved on the outside of the transmission rods via bearing balls. The other ends of the two transmission rods extend to the front and rear sides of the mounting frame, respectively, and are each fixedly connected to a drive pulley.

[0008] Preferably, each of the two valve assemblies includes a connecting pipe installed on the top of the mounting bracket or the bottom of the extension bracket. A feed pipe is connected to the side of the connecting pipe, and a solenoid valve is connected to both ends of the connecting pipe. A discharge pipe is connected to the other side of each of the two solenoid valves, and the other ends of the two discharge pipes are respectively connected to two cleaning pipes or two spraying pipes.

[0009] Preferably, the pumping assembly includes a pump and a paint tank fixedly installed on the top of the mounting frame. The pump's inlet and outlet are each connected to a T-shaped pipe. The two inlets of the T-shaped pipe connected to the pump's inlet are respectively connected to the paint tank or the external environment, and the two outlets of the T-shaped pipe connected to the pump's outlet are respectively connected to two inlet pipes.

[0010] Preferably, both of the spraying mechanisms include a spraying frame disposed on either the front or back side of the crossbeam. The front of the spraying frame has two rotating slots, and the top or bottom of the spraying frame is fixedly connected to two paint extension rods. The surface of the paint extension rod near the crossbeam has a paint spray hole.

[0011] Preferably, the top or bottom of the spraying frame is fixedly connected to a cleaning extension rod located outside the paint extension rod. The cleaning extension rod has a directional slope on the side of its surface near the crossbeam and away from the paint extension rod, and a cleaning spray hole is opened inside the directional slope.

[0012] Preferably, the paint extension rod or cleaning extension rod is inserted into the interior of the mounting frame or extension frame, and the interior of the paint extension rod or cleaning extension rod is interconnected with the spray frame. A positioning rod is rotatably sleeved on the bottom side of the mounting frame or extension frame near the crossbeam. One end of the positioning rod passes through the mounting frame or extension frame and extends into the interior of the paint extension rod. The end of the positioning rod extending into the interior of the paint extension rod is threaded into the interior of the paint spray hole.

[0013] Preferably, each of the transmission mechanisms includes a roller that rolls inside the hanging rail. A rotating retaining shaft is provided on the front of the roller. A retaining groove is provided on the outer side of the rotating retaining shaft. The rotating retaining shaft is connected to the rotating retaining groove through bearing balls installed inside the retaining groove. A driven pulley is fixedly connected to the front of the rotating retaining shaft. Two of the driven pulleys located on the same side in the front and rear spraying mechanisms are connected to the driving pulley through a transmission belt.

[0014] Preferably, a positioning shaft is rotatably sleeved inside the rotating clamp shaft via bearing balls. The front end of the positioning shaft extends into the interior of the driven pulley and is fixedly connected to a dial. A lead screw is threaded into the middle of the roller. Several anti-detachment blocks are movably sleeved inside the roller, located around the lead screw and evenly distributed. A connecting rod and a positioning rod are fixedly connected to the front of the lead screw and the anti-detachment blocks, respectively. The front ends of the connecting rod and the positioning rod both pass through the roller and are fixedly connected to the positioning shaft or the rotating clamp shaft, respectively.

[0015] Preferably, the adjusting mechanism is slidably engaged with the slider at the bottom of the mounting frame. A positioning wheel connected to the inside of the transmission belt is movably mounted on the front of the slider. A lead screw is threaded into the inside of the slider. Both ends of the lead screw pass through the slider. A knob that is rotatably engaged with the mounting frame is fixedly connected to one end of the lead screw.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. This invention automatically completes the continuous coating of the inner wall of the hanging rail through the cooperation of the spraying mechanism and the transmission mechanism, which not only improves the work efficiency, but also effectively reduces the safety hazards of workers.

[0019] 2. This invention can change the distance between the mounting frame and the extension frame by cooperating with the positioning rod and the paint spray hole, thereby changing the size of the paint spray extension rod and the cleaning extension rod extending to the outside of the mounting frame or the extension frame and adapting it to the height dimension of the inner wall section of the hanging rail; while fixing the rotating clasp, rotating the dial can change the distance between the roller and the rotating clasp by means of the screw shaft under the restriction of the roller by the positioning rod, thus changing the distance between the front and rear sets of rollers, making it suitable for hanging rails with different front and rear widths, thereby increasing its applicability.

[0020] 3. The present invention can ensure that the transmission belt is taut after passing over the driving pulley and the driven pulley through the adjustment mechanism, thereby ensuring that the power component can still drive the transmission mechanism to rotate through the transmission belt after the distance between the mounting frame and the spraying frame is changed.

[0021] 4. The present invention allows workers to easily control the material delivery of either the left or right cleaning pipe or spraying pipe with the cooperation of the valve assembly, thereby enabling the brushing and air spraying to cooperate with one end of the brushing assembly to achieve continuous dust removal, brushing and drying effects.

[0022] 5. By controlling the opening and closing of the two solenoid valves on the left and right sides of each valve assembly, the present invention can make the paint sprayed from one side of the composite process, thereby making the time difference between cleaning and painting much smaller than the time difference between painting and drying. This can effectively prevent dust from falling back during cleaning and painting, while increasing the natural drying time of the paint and preventing the airflow from rapidly spraying onto the freshly applied paint and blowing it away, thus avoiding uneven paint application. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a partial schematic diagram of the coating component of the present invention;

[0025] Figure 3 for Figure 2 The front view in the middle;

[0026] Figure 4 for Figure 2 Side view in the middle;

[0027] Figure 5 This is a schematic diagram of the spraying mechanism in this invention;

[0028] Figure 6 for Figure 5 A cross-sectional view of the front of the spray painting rack;

[0029] Figure 7 for Figure 6 A magnified view of a portion of point A in the middle;

[0030] Figure 8 This is a schematic diagram of the transmission mechanism in this invention;

[0031] Figure 9 for Figure 8 A sectional view of the middle side;

[0032] Figure 10 This is a schematic diagram of the valve assembly in this invention.

[0033] In the diagram: 1. Crossbeam; 2. Hanging rail; 3. Spraying mechanism; 31. Spraying frame; 32. Rotary slot; 33. Spray extension rod; 34. Spray nozzle; 35. Cleaning extension rod; 36. Orientation slope; 37. Cleaning nozzle; 38. Positioning rod; 4. Mounting bracket; 5. Transmission mechanism; 51. Roller; 52. Rotary retaining shaft; 53. Snap-fit ​​groove; 54. Driven pulley; 55. Lead shaft; 56. Connecting rod; 57. Positioning shaft; 58. Dial; 59. Anti-detachment device. 510. Block; 6. Positioning rod; 7. Transmission belt; 8. Adjustment mechanism; 9. Slider; 10. Positioning wheel; 11. Lead screw; 12. Knob; 13. Cleaning pipe; 14. Spraying pipe; 15. Valve assembly; 16. Connecting pipe; 17. Feed pipe; 18. Solenoid valve; 19. Discharge pipe; 20. Power motor; 21. Transmission rod; 22. Positioning frame; 33. Drive pulley; 44. Pump; 55. T-pipe; 66. Paint tank; 77. Extension frame. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] like Figures 1 to 10 As shown, this invention provides a high-safety clean crane and its processing equipment, including a crossbeam 1 and a hanging rail 2. A coating assembly is installed on the outside of the crossbeam 1 via the hanging rail 2. The coating assembly includes two spraying mechanisms 3 located on the front and rear sides of the crossbeam 1. A mounting frame 4 is connected to the top of each spraying mechanism 3. Two left and right transmission mechanisms 5 are movably installed inside each spraying mechanism 3. A power assembly is connected between the two transmission mechanisms 5 located on one of the left and right sides of the two spraying mechanisms 3 via a transmission belt 6. Two left and right cleaning pipes 8 are provided on the top of the mounting frame 4. An extension frame 18 is connected to the bottom of the spraying mechanism 3. Two left and right spraying pipes 9 are provided at the bottom of the extension frame 18. A pumping assembly is installed on the top of the mounting frame 4. Two valve assemblies 10 are connected to the discharge end of the pumping assembly. The two ends of the two valve assemblies 10 are respectively connected to the left and right cleaning pipes 8 or spraying pipes 9. Through the cooperation of the spraying mechanism 3 and the transmission mechanism 5, the continuous coating of the inner wall of the hanging rail 2 is automatically completed, which not only improves the work efficiency, but also effectively reduces the safety hazards of workers.

[0036] like Figure 2As shown, the power assembly consists of a power motor 11, a transmission rod 12, a positioning frame 13, and a drive pulley 14. The power motor 11 and the positioning frame 13 are mounted on the top of the mounting frame 4. A transmission rod 12 is connected to each end of the output shaft of the drive pulley 14. The positioning frame 13 is rotated and sleeved on the outside of the transmission rod 12 through bearing balls. The other ends of the two transmission rods 12 extend to the front and rear sides of the mounting frame 4 respectively and are fixedly connected to a drive pulley 14.

[0037] like Figure 10 As shown, each of the two valve assemblies 10 includes a connecting pipe 101 installed on the top of the mounting bracket 4 or the bottom of the extension bracket 18. A feed pipe 102 is connected to the side of the connecting pipe 101, and a solenoid valve 103 is connected to both ends of the connecting pipe 101. A discharge pipe 104 is connected to the other side of each of the two solenoid valves 103. The other ends of the two discharge pipes 104 are respectively connected to two cleaning pipes 8 or two spraying pipes 9. By controlling the opening and closing of the two solenoid valves 103 in each valve assembly 10, the paint can be sprayed from one side of the composite process, so that the time difference between cleaning and painting is much smaller than the time difference between painting and drying, thus achieving different process effects.

[0038] like Figure 2 As shown, the pumping assembly includes a pump 15 and a paint tank 17 fixedly installed on the top of the mounting frame 4. Both the inlet and outlet ends of the pump 15 are connected to a T-pipe 16. The two inlets of the T-pipe 16 connected to the inlet end of the pump 15 are respectively connected to the paint tank 17 or the external environment. The two outlets of the T-pipe 16 connected to the outlet end of the pump 15 are respectively connected to two inlet pipes 102.

[0039] like Figure 5 As shown, both spraying mechanisms 3 include a spraying frame 31 located on either the front or rear side of the crossbeam 1. The front of the spraying frame 31 has two rotating slots 32 on the left and right. The top or bottom of the spraying frame 31 is fixedly connected to two paint extension rods 33 on the left and right. The paint extension rods 33 have paint holes 34 on the side of their surfaces closest to the crossbeam 1. The paint extension rods 33 and paint holes 34 ensure that even after the distance between the mounting frame 4 and the extension frame 18 and the spraying frame 31 changes, the airflow inside the cleaning pipe 8 or the paint in the spraying pipe 9 can still pass through the spraying frame 31 and flow into the extension frame 18 or the mounting frame 4.

[0040] like Figure 5 As shown, the top or bottom of the spray frame 31 is fixedly connected to a cleaning extension rod 35 located outside the paint extension rod 33. A directional slope 36 is provided on the side of the cleaning extension rod 35 that is close to the crossbeam 1 and away from the paint extension rod 33. A cleaning nozzle 37 is opened inside the directional slope 36. The directional slope 36 can ensure that the spray direction of the airflow in the cleaning nozzle 37 is at an acute angle to the surface of the hanging rail 2, which is beneficial to increase the dust removal effect.

[0041] like Figure 5 As shown, the painting extension rod 33 or cleaning extension rod 35 is inserted into the interior of the mounting frame 4 or extension frame 18. The interior of the painting extension rod 33 or cleaning extension rod 35 is interconnected with the spray frame 31. A positioning rod 38 is rotatably sleeved on the bottom side of the mounting frame 4 or extension frame 18 near the crossbeam 1. One end of the positioning rod 38 passes through the mounting frame 4 or extension frame 18 and extends into the interior of the painting extension rod 33. The end of the positioning rod 38 extending into the interior of the painting extension rod 33 is threaded into the interior of the paint hole 34. The distance between the mounting frame 4 and the extension frame 18 can be changed by the cooperation of the positioning rod 38 and the paint hole 34, thereby changing the size of the painting extension rod 33 and the cleaning extension rod 35 extending outside the mounting frame 4 or extension frame 18 and adapting it to the height size of the inner wall section of the hanging rail 2.

[0042] like Figure 9 As shown, each transmission mechanism 5 includes a roller 51 that rolls inside the hanging rail 2. A rotating retaining shaft 52 is provided on the front of the roller 51. A retaining groove 53 is provided on the outer side of the rotating retaining shaft 52. The rotating retaining shaft 52 is connected to the rotating retaining groove 32 through bearing balls installed inside the retaining groove 53. A driven pulley 54 is fixedly connected to the front of the rotating retaining shaft 52. Two of the driven pulleys 54 located on the same side in the front and rear spraying mechanisms 3 are connected to the driving pulley 14 through the transmission belt 6.

[0043] like Figure 9 As shown, a positioning shaft 57 is rotatably sleeved inside the rotating clamp 52 via bearing balls. The front end of the positioning shaft 57 extends into the interior of the driven pulley 54 and is fixedly connected to a dial 58. A screw 55 is threadedly sleeved in the middle of the roller 51. Several anti-detachment blocks 59 are evenly distributed around the screw 55 and movably sleeved inside the roller 51. A connecting rod 56 and a positioning rod 510 are fixedly connected to the front of the screw 55 and the anti-detachment blocks 59, respectively. The front ends of the connecting rod 56 and the positioning rod 510 both pass through the roller 51 and are fixedly connected to the positioning shaft 57 or the rotating clamp 52, respectively. While fixing the rotating clamp 52, rotating the dial 58 can change the distance between the roller 51 and the rotating clamp 52 through the screw 55 under the restriction of the positioning rod 510 on the roller 51, thereby changing the distance between the two sets of rollers 51, making it suitable for hanging rails 2 with different front and rear widths.

[0044] like Figure 3As shown, the adjusting mechanism 7 is slidably engaged with the slider 71 at the bottom of the mounting frame 4. The front of the slider 71 is movably mounted with a positioning wheel 72 that is connected to the inside of the transmission belt 6. The inside of the slider 71 is threaded with a lead screw 73, both ends of which pass through the slider 71. One end of the lead screw 73 is fixedly connected to a knob 74 that is rotatably engaged on the mounting frame 4. The adjusting mechanism 7 can ensure that the transmission belt 6 can be taut after passing over the driving pulley 14 and the driven pulley 54, thereby ensuring that the power component can still drive the transmission mechanism 5 to rotate through the transmission belt 6 after the distance between the mounting frame 4 and the spray frame 31 changes.

[0045] Working principle and usage process of this invention:

[0046] First, adjust the distance between the four rollers 51 and the spray frame 31. That is, while fixing the rotating shaft 52, rotate the dial 58. When the dial 58 rotates, it can drive the screw 55 to rotate through the positioning shaft 57 and the connecting rod 56. At this time, because the rotating shaft 52 restricts the rollers 51 through the positioning rod 510, the rotation of the screw 55 can drive the rollers 51 to move left and right, and make the rollers 51 close to the inside of the hanging rail 2. Then, adjust and determine the position of the mounting frame 4 and the extension frame 18 through the positioning rod 38. Then, adjust the transmission belt 6 through the adjustment mechanism 7. That is, rotating the knob 74 can drive the slider 71 and the positioning wheel 72 to move left and right as a whole through the screw 73 under the restriction of the mounting frame 4 on the slider 71, so that the transmission belt 6 is taut. Finally, turn on the equipment to make the power motor 11 and the pump 15 run.

[0047] Since the operation of the power motor 11 can drive the front and rear active pulleys 14 to rotate through the transmission rod 12, and the rotation of the active pulleys 14 can drive the driven pulleys 54 to rotate through the transmission belt 6, and the rotation of the driven pulleys 54 can drive the rotating shaft 52 to rotate. Since the rotating shaft 52 is restricted by the rotating groove 32 under the cooperation of the locking groove 53 and the bearing balls, the rotation of the rotating shaft 52 can drive the roller 51 to rotate through several positioning rods 510 and anti-detachment blocks 59. Thus, under the cooperation of gravity and frictional resistance, the roller 51 can drive the entire coating assembly to move along the outside of the crossbeam 1 along the inner wall of the hanging rail 2.

[0048] The operation of the pump 15 can pump the paint in the paint tank 17 or the air from the outside environment into the paint extension rod 33 or the cleaning extension rod 35 through two three-way pipes 16. With the continuous injection of paint or gas, it is sprayed onto the surface of the hanging rail 2 through the paint spray hole 34 or the cleaning spray hole 37 respectively.

[0049] Before the power motor 11 and pump 15 are running, the switch of any one of the left and right solenoid valves 103 in each valve assembly 10 is controlled, so that during the painting process, the paint is sprayed out from the paint spray hole 34 on the side near the front end of the painting assembly moving direction, and the airflow sprayed from the left and right sides can be sprayed onto the surface of the hanging rail 2 before and after painting.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-safety, clean crane processing equipment, comprising a crane and processing equipment, characterized in that: The crane consists of a crossbeam (1) and a hanging rail (2). The processing equipment consists of a painting assembly. The painting assembly is installed on the outside of the crossbeam (1) via the hanging rail (2). The painting assembly includes two spraying mechanisms (3) located on the front and rear sides of the crossbeam (1). The top of the spraying mechanism (3) is connected to a mounting bracket (4). Each spraying mechanism (3) has two left and right transmission mechanisms (5) movably installed inside. The two transmission mechanisms (5) located on one side of the two spraying mechanisms (3) are connected by a transmission belt (6). The mounting frame (4) is provided with two cleaning pipes (8) on the top and two spraying pipes (9) on the bottom. The mounting frame (4) is connected to an extension frame (18) on the bottom. The extension frame (18) is provided with two spraying pipes (9) on the bottom. The mounting frame (4) is provided with a pumping assembly. The discharge end of the pumping assembly is connected to two valve assemblies (10). One valve assembly (10) is connected to the two cleaning pipes (8) on the left and right respectively. The other valve assembly (10) is connected to the two spraying pipes (9) on the left and right respectively. Both of the spraying mechanisms (3) include a spraying frame (31) located on either side of the front or rear of the crossbeam (1). The front of the spraying frame (31) is provided with two rotating slots (32) on the left and right. The top or bottom of the spraying frame (31) is fixedly connected with two paint extension rods (33) on the left and right. The paint extension rods (33) are provided with paint holes (34) on the side of the surface of the paint extension rods (33) near the crossbeam (1). The painting extension rod (33) and cleaning extension rod (35) are inserted into the interior of the mounting frame (4) or extension frame (18). The interior of the painting extension rod (33) or cleaning extension rod (35) is interconnected with the spray frame (31). A positioning rod (38) is rotatably sleeved on the bottom side of the mounting frame (4) or extension frame (18) near the crossbeam (1). One end of the positioning rod (38) passes through the mounting frame (4) or extension frame (18) and extends into the interior of the painting extension rod (33). The end of the positioning rod (38) extending into the interior of the painting extension rod (33) is threaded into the interior of the paint hole (34). The distance between the mounting frame (4) and the extension frame (18) can be changed by the cooperation of the positioning rod (38) and the paint hole (34). The top or bottom of the spray frame (31) is fixedly connected to a cleaning extension rod (35) located outside the paint extension rod (33). The cleaning extension rod (35) has a directional slope (36) on the side of its surface that is close to the crossbeam (1) and away from the paint extension rod (33). The directional slope (36) has a cleaning spray hole (37) inside. Each of the transmission mechanisms (5) includes a roller (51) that rolls inside the hanging rail (2). A rotating retaining shaft (52) is provided on the front side of the roller (51). A retaining groove (53) is provided on the outer side of the rotating retaining shaft (52). The rotating retaining shaft (52) is connected to the rotating retaining groove (32) through bearing balls installed inside the retaining groove (53). A driven pulley (54) is fixedly connected to the front side of the rotating retaining shaft (52).

2. The high-safety, clean crane processing equipment according to claim 1, characterized in that: The power assembly consists of a power motor (11), a transmission rod (12), a positioning frame (13), and a drive pulley (14). The power motor (11) and the positioning frame (13) are mounted on the top of the mounting frame (4). The two ends of the output shaft of the drive pulley (14) are respectively connected to a transmission rod (12). The positioning frame (13) is rotated and sleeved on the outside of the transmission rod (12) through bearing balls. The other ends of the two transmission rods (12) extend to the front and rear sides of the mounting frame (4) respectively and are each fixedly connected to a drive pulley (14).

3. The high-safety, clean crane processing equipment according to claim 1, characterized in that: Both valve assemblies (10) include a connecting pipe (101) mounted on the top of the mounting bracket (4) or the bottom of the extension bracket (18). A feed pipe (102) is connected to the side of the connecting pipe (101). A solenoid valve (103) is connected to both ends of the connecting pipe (101). A discharge pipe (104) is connected to the other side of both solenoid valves (103). The other ends of the two discharge pipes (104) of one valve assembly (10) are respectively connected to two cleaning pipes. The other ends of the two discharge pipes (104) of the other valve assembly (10) are respectively connected to two spraying pipes (9).

4. The high-safety and clean crane processing equipment according to claim 3, characterized in that: The pumping assembly includes a pump (15) fixedly installed on the top of the mounting frame (4) and a paint tank (17). The pump (15) has a three-way pipe (16) connected to both its inlet and outlet ends. The two inlets of the three-way pipe (16) connected to the inlet end of the pump (15) are respectively connected to the paint tank (17) or the external environment. The operation of the pump (15) can pump the paint in the paint tank (17) or the air in the external environment to the inside of the paint extension rod (33) or the cleaning extension rod (35) through the two three-way pipes (16). The two outlets of the three-way pipe (16) connected to the outlet end of the pump (15) are respectively connected to the two inlet pipes (102) one by one.

5. The high-safety and clean crane processing equipment according to claim 2, characterized in that: The driven pulleys (54) are located on the same side of the front and rear spraying mechanisms (3). Two of the driven pulleys (54) are connected to the driving pulley (14) via a transmission belt (6).

6. The high-safety and clean crane processing equipment according to claim 5, characterized in that: The rotating shaft (52) is fitted with a positioning shaft (57) through bearing balls. The front end of the positioning shaft (57) extends into the driven pulley (54) and is fixedly connected to a dial (58). The roller (51) is threaded with a screw shaft (55) in the middle. The roller (51) is fitted with a plurality of anti-detachment blocks (59) that are evenly distributed around the screw shaft (55). The front of the screw shaft (55) and the anti-detachment blocks (59) are fixedly connected to a connecting rod (56) and a first positioning rod (510), respectively. The front end of the connecting rod (56) passes through the roller (51) and is fixedly connected to the positioning shaft (57). The front end of the first positioning rod (510) passes through the roller (51) and is fixedly connected to the rotating shaft (52).

7. The high-safety and clean crane processing equipment according to claim 5, characterized in that: The adjusting mechanism (7) is slidably engaged with the slider (71) at the bottom of the mounting frame (4). The front of the slider (71) is movably mounted with a positioning wheel (72) that is connected to the inside of the transmission belt (6). The slider (71) is threaded with a lead screw (73). Both ends of the lead screw (73) pass through the slider (71). One end of the lead screw (73) is fixedly connected with a knob (74) that is rotatably engaged with the mounting frame (4).

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