A painting workshop paint spray booth exhaust treatment device

Abstract

The application relates to the technical field of waste gas treatment, and discloses a coating workshop paint spraying room waste gas treatment device, which comprises a paint spraying room, a connecting cylinder is fixedly connected to the side wall of the paint spraying room, a motor is fixedly connected to the side wall of the connecting cylinder, an exhaust pipe is fixedly connected to the outer wall of the connecting cylinder, the motor is started to drive the rotating rod to rotate, so that the fan blade rotates, the fan blade generates centrifugal force extending outward, the counterweight is affected by the centrifugal force and moves away from the rotating rod, drives the sliding block to move, and the sliding block extrudes the spring sliding rod I; when the counterweight contacts the convex position of the concave-convex plate, the counterweight is extruded and moves towards the sliding frame; the counterweight can move away from the rotating rod and move transversely at the same time; different directions of force are exerted on the paint particle on the surface of the fan blade, the paint particle on the surface of the fan blade is removed, the accumulation of the paint particle on the surface of the fan blade is effectively prevented, and the surface of the fan blade is ensured to be smooth.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste gas treatment equipment, in particular to a coating workshop paint spray booth waste gas treatment device. BACKGROUND

[0002] In the process of working in the coating workshop, paint spraying waste gas will be generated. The paint used in the paint spraying process contains a large amount of organic solvents, such as benzene, toluene, xylene, esters, ketones and other volatile organic compounds. These are the main components of the paint spray booth waste gas. The paint spray booth waste gas treatment device of the coating workshop is mainly used to treat harmful waste gas generated in the coating process, to ensure the safety of the workshop environment and to meet the environmental protection requirements.

[0003] Among them, when treating the waste gas of the paint spray booth, the fan is often used to suck the waste gas into the pipeline and filter and discharge through the filter screen. However, during paint spraying in the paint spray booth, part of the paint particles may be attracted into the pipeline and contact the fan blades by the airflow generated by the fan. The paint particles may adhere to the fan blades. If the time is too long, the paint particles will accumulate on the surface of the fan blades, affecting the stability of the rotation of the fan blades, making the air suction effect worse, and affecting the exhaust of the waste gas. SUMMARY

[0004] To solve the above technical problems, the present application provides a coating workshop paint spray booth waste gas treatment device, which comprises a paint spray booth, a connecting cylinder fixedly connected to the side wall of the paint spray booth, a motor fixedly connected to the side wall of the connecting cylinder, an exhaust pipe fixedly connected to the outer wall of the connecting cylinder, and a filter screen fixedly connected to the inner wall of the exhaust pipe.

[0005] The cleaning assembly comprises a fan, a rotating rod for cleaning the surface of the fan, a counterweight, a spring sliding rod one, and a sliding block for strengthening the cleaning of the surface of the fan.

[0006] The side wall of the rotating rod is fixedly connected with the side wall of the motor at the output end, the number of the fan blades, the counterweights, the spring sliding rods and the sliding blocks is four, the side wall of the four fan blades is fixedly connected with the outer wall of the rotating rod, the inner wall of the four fan blades is fixedly connected with the outer wall of the four spring sliding rods, the inner wall of the four fan blades is slidably connected with the outer wall of the four sliding blocks, the side wall of the four sliding blocks is slidably connected with the side wall of the four counterweights, the inner wall of the four sliding blocks is slidably connected with the outer wall of the four spring sliding rods, when the paint spraying work is carried out in the paint spraying chamber, the motor is started to drive the rotating rod to rotate, so that the fan blades are rotated, the suction force generated by the rotation of the fan blades can suck the waste gas in the paint spraying chamber into the connecting cylinder, and then the waste gas is filtered through the filter screen and discharged through the exhaust pipe, wherein, during the rotation of the fan blades, the centrifugal force outwardly extending from the fan blades is generated, the counterweights are affected by the centrifugal force, and the counterweights move away from the rotating rod, when the counterweights move, the sliding blocks are driven to move, the sliding blocks press the spring sliding rods, the spring sliding rods accumulate the elastic force, and during the continuous movement of the counterweights, when the counterweights are in contact with the convex position of the concave-convex plate, the counterweights are pressed to move towards the sliding frame, the spring reset rods are pressed to accumulate the elastic force, when the counterweights are in contact with the concave position of the concave-convex plate, the elastic force of the spring reset rods is released, the counterweights are reset, and the counterweights can move away from the rotating rod and move transversely, different directions of force are applied to the paint particles on the surface of the fan blades, the paint particles on the surface of the fan blades are removed, when the counterweights move to the edge of the fan blades, the counterweights are in contact with the concave position of the concave-convex plate, and the side, away from the counterweights, of the sliding frame blocks the spring reset rods, so that the counterweights are prevented from shaking during the rotation of the fan blades, the paint particles on the surface of the fan blades are self-cleaned during the rotation of the fan blades, the accumulation of the paint particles on the surface of the fan blades is effectively prevented, the surface of the fan blades is kept smooth, the waste gas can smoothly flow through the surface of the fan blades, and the waste gas is effectively discharged.

[0007] Preferably, the reciprocating assembly comprises the concave-convex plates fixedly connected with the side walls of the fan blades, the sliding frames are fixedly connected with the sides, away from the concave-convex plates, of the four fan blades, the four concave-convex plates are in the shape of a wave, and the side walls of the four counterweights are slidably connected with the side walls of the four concave-convex plates.

[0008] Preferably, the reciprocating assembly further comprises the spring reset rods fixedly connected with the sides, away from the concave-convex plates, of the counterweights, the outer walls of the four spring reset rods are slidably connected with the inner walls of the four sliding frames, and the inner wall of the rotating rod is provided with the balancing assembly.

[0009] Preferably, the balancing assembly comprises an oil storage cylinder fixedly connected to the inner wall of the rotating rod, a piston rod slidably connected to the inner wall of the oil storage cylinder, hydraulic oil arranged in the inner wall of the oil storage cylinder, four hydraulic telescopic rods fixedly connected to the inner wall of the rotating rod, and a pushing assembly arranged in the inner wall of the rotating rod.

[0010] Preferably, the balancing assembly further comprises four oil delivery pipes throughly connected to the side wall of the oil storage cylinder, the outer wall of each of the four oil delivery pipes is throughly connected to the inner wall of each of the four hydraulic telescopic rods, and the side of each of the four hydraulic telescopic rods close to the fan blade is slidably connected to the side of each of the four counterweights close to the rotating rod. When the counterweight moves, the hydraulic telescopic rod also moves, the internal space of the hydraulic telescopic rod increases, suction is generated in the internal space, the hydraulic oil in the oil storage cylinder is sucked into the hydraulic telescopic rod through the oil delivery pipe, the hydraulic oil in the oil storage cylinder is reduced, the piston rod is moved by the suction of the hydraulic oil, the space in the oil storage cylinder is compressed by the movement of the piston rod, the hydraulic oil in the oil storage cylinder is moved, the hydraulic oil can enter multiple oil delivery pipes at the same time, and finally enters the hydraulic telescopic rod through the oil delivery pipe to support the counterweight. By supporting the counterweight, the multiple counterweights are simultaneously located at the edge of the fan blade, effectively preventing the center of gravity of the fan blade from deviating when the fan blade rotates.

[0011] Preferably, the pushing assembly comprises a gas collection groove arranged in the inner wall of the rotating rod, a compression ring slidably connected to the inner wall of the gas collection groove, the side wall of the compression ring is fixedly connected to the side wall of the piston rod, and four push rods are fixedly connected to the side wall of the compression ring.

[0012] Preferably, the pushing assembly further comprises a spring blocking ring slidably connected to the inner wall of the gas collection groove, a pushing rod fixedly connected to the side wall of the spring blocking ring, four gas delivery pipes fixedly connected to the inner wall of the rotating rod, and the outer wall of each of the four gas delivery pipes is throughly connected to the inner wall of the gas collection groove. When the piston rod moves, the compression ring and the push rod also move, and at the same time, the piston rod is separated from the pushing rod when the piston rod moves, the blocking of the spring blocking ring is cancelled. Since the spring blocking ring is in a stretched state, the springback force of the spring blocking ring is released, the spring blocking ring is reset, the gas delivery pipe is blocked, and the gas collection groove is in a closed state.

[0013] Preferably, the pushing assembly further comprises four air pressure telescopic rods fixedly connected at the inner wall of the rotating rod, the inner wall of the four air pressure telescopic rods is in through connection with the outer wall of the four gas conveying pipes, the left side of the four counterweights is fixedly connected with four connecting plates, and the side close to the rotating rod of the four connecting plates is in sliding connection with the side close to the fan blade of the four air pressure telescopic rods; at this time, the movement of the extrusion ring will extrude the gas in the gas collecting groove, and the gas will be blocked by the spring blocking ring, so that the pressure of the gas will be increased; at the same time, when the counterweight moves away from the rotating rod, the connecting plate will be moved, and the connecting plate will drive the air pressure telescopic rod to move; when the counterweight moves to the edge of the fan blade, the push rod will push the spring blocking ring to move, the blocking of the gas conveying pipe is cancelled, and the high-pressure gas will enter the gas conveying pipe.

[0014] Preferably, the pushing assembly further comprises four air pressure telescopic rods fixedly connected at the inner wall of the rotating rod, the inner wall of the four air pressure telescopic rods is in through connection with the outer wall of the four gas conveying pipes, the left side of the four counterweights is fixedly connected with four connecting plates, and the side close to the rotating rod of the four connecting plates is in sliding connection with the side close to the fan blade of the four air pressure telescopic rods; at this time, the movement of the extrusion ring will extrude the gas in the gas collecting groove, and the gas will be blocked by the spring blocking ring, so that the pressure of the gas will be increased; at the same time, when the counterweight moves away from the rotating rod, the connecting plate will be moved, and the connecting plate will drive the air pressure telescopic rod to move; when the counterweight moves to the edge of the fan blade, the push rod will push the spring blocking ring to move, the blocking of the gas conveying pipe is cancelled, and the high-pressure gas will enter the gas conveying pipe.

[0015] Preferably, the pushing assembly further comprises four air pressure telescopic rods fixedly connected at the inner wall of the rotating rod, the inner wall of the four air pressure telescopic rods is in through connection with the outer wall of the four gas conveying pipes, the left side of the four counterweights is fixedly connected with four connecting plates, and the side close to the rotating rod of the four connecting plates is in sliding connection with the side close to the fan blade of the four air pressure telescopic rods; at this time, the movement of the extrusion ring will extrude the gas in the gas collecting groove, and the gas will be blocked by the spring blocking ring, so that the pressure of the gas will be increased; at the same time, when the counterweight moves away from the rotating rod, the connecting plate will be moved, and the connecting plate will drive the air pressure telescopic rod to move; when the counterweight moves to the edge of the fan blade, the push rod will push the spring blocking ring to move, the blocking of the gas conveying pipe is cancelled, and the high-pressure gas will enter the gas conveying pipe.

[0016] The application has the following beneficial effects:

[0017] (1) When the paint spraying chamber is used for paint spraying, the motor is started to drive the rotating rod to rotate, so that the fan blades rotate. The suction force generated by the rotation of the fan blades can suck the exhaust gas in the paint spraying chamber into the connecting cylinder, and then into the exhaust pipe through the connecting cylinder. The exhaust gas is filtered through the filter screen, and then discharged through the exhaust pipe. During the rotation of the fan blades, the fan blades generate centrifugal force extending outward. The counterweight is affected by the centrifugal force, and moves away from the rotating rod. When the counterweight moves, it drives the sliding block to move, so that the sliding block extrudes the spring sliding rod I, and the spring sliding rod I accumulates the elastic force. At the same time, during the continuous movement of the counterweight, when the counterweight contacts the protruding position of the concave-convex plate, the counterweight is extruded and moves towards the sliding frame, so that the spring return rod is extruded and accumulates the elastic force. When the counterweight contacts the recessed position of the concave-convex plate, the elastic force of the spring return rod is released, and the counterweight returns to the original position. In this way, the counterweight can move away from the rotating rod while moving horizontally, and can exert force on the paint particles on the surface of the fan blades in different directions, so as to remove the paint particles attached to the surface of the fan blades. When the counterweight moves to the edge of the fan blade, the counterweight contacts the recessed position of the concave-convex plate, and the side of the sliding frame away from the counterweight blocks the spring return rod, preventing the counterweight from shaking during the rotation of the fan blade. Through the self-cleaning of the paint particles on the surface of the fan blade during the rotation of the fan blade, the accumulation of paint particles on the surface of the fan blade is effectively prevented, and the surface of the fan blade is kept smooth, so that the exhaust gas can flow smoothly through the surface of the fan blade, and the exhaust gas can be effectively discharged.

[0018] (2) When the counterweight moves, it also drives the hydraulic telescopic rod to move. The internal space of the hydraulic telescopic rod increases, so that suction force is generated inside. The hydraulic oil in the oil storage cylinder is sucked into the hydraulic telescopic rod through the oil supply pipe, so that the amount of hydraulic oil in the oil storage cylinder decreases. The hydraulic oil attracts the piston rod to move, which compresses the space in the oil storage cylinder and pushes the hydraulic oil in the oil storage cylinder to move, so that the hydraulic oil can enter multiple oil supply pipes at the same time and finally enter the hydraulic telescopic rod through the oil supply pipe to support the counterweight. By supporting the counterweight, multiple counterweights can be simultaneously located at the edge of the fan blade, effectively preventing the center of gravity of the fan blade from shifting during the rotation of the fan blade. For example, when the fan blade is vertically upward, the counterweight may be affected by gravity and may drop, resulting in uneven distribution of multiple counterweights, breaking the balance of the fan blade rotation, and affecting the stability of the fan blade rotation.

[0019] (3) the piston rod moves, the extrusion ring and the push rod also move, and the piston rod is separated from the push rod when the piston rod moves, thereby canceling the blocking of the spring blocking ring. Since the spring blocking ring is in a stretched state, the spring force of the spring blocking ring is released, the spring blocking ring is reset, the gas pipe is blocked, the gas in the gas collecting groove is extruded by the movement of the extrusion ring, and the gas is blocked by the spring blocking ring, so that the pressure of the gas is increased. When the counterweight moves away from the rotating rod, the connecting plate also moves, and the connecting plate drives the gas pressure telescopic rod to move. When the counterweight moves to the edge of the fan blade, the push rod pushes the spring blocking ring to move, thereby canceling the blocking of the gas pipe. The high-pressure gas enters the gas pipe and then enters the gas pressure telescopic rod through the gas pipe, thereby driving the gas pressure telescopic rod to move and applying an additional pushing force to the counterweight. The single fan blade is effectively prevented from adhering to a large paint block. When the counterweight on the fan blade is blocked by the large paint block, the remaining counterweights are affected by the centrifugal force generated by the rotation of the fan blade and move to the edge of the fan blade. The protruding position of the connecting plate is in contact with the connecting rod, thereby driving the connecting rod to rotate and extruding the spring block to accumulate the spring force. When the connecting rod rotates, the blocking block also rotates, thereby blocking the gas pipe. When the high-pressure gas enters the gas pipe, it is blocked by the blocking block. The counterweight blocked by the large paint block has not moved to the position, so that the high-pressure gas enters the gas pipe, thereby concentrating the gas and effectively preventing the gas from being dispersed and affecting the pushing force of the counterweight.

[0020] (4) Among the plurality of fan blades, a single fan blade adheres to a large paint block. When the counterweight on the fan blade is blocked by the large paint block, the remaining counterweights are affected by the centrifugal force generated by the rotation of the fan blade and move to the edge of the fan blade. The protruding position of the connecting plate is in contact with the connecting rod, thereby driving the connecting rod to rotate and extruding the spring block to accumulate the spring force. When the connecting rod rotates, the blocking block also rotates, thereby blocking the gas pipe. When the high-pressure gas enters the gas pipe, it is blocked by the blocking block. The counterweight blocked by the large paint block has not moved to the position, so that the high-pressure gas enters the gas pipe, thereby concentrating the gas and effectively preventing the gas from being dispersed and affecting the pushing force of the counterweight. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0022] Figure 1 It is a schematic view of the overall structure of the present application;

[0023] Figure 2 It is a schematic view of the connecting cylinder of the present application;

[0024] Figure 3 It is a schematic view of the overall structure of the present application;

[0025] Figure 4 It is a schematic view of the fan blade structure of the present application;

[0026] Figure 5 is a sectional view of the hydraulic telescopic rod of the present application;

[0027] Figure 6 is an enlarged view of A in the present application Figure 5

[0028] Figure 7 is a sectional view of the rotating rod of the present application;

[0029] Figure 8 is an enlarged view of B in the present application Figure 7

[0030] In the drawings, the components represented by each reference numeral are listed as follows:

[0031] In the drawings, 1 is a paint spraying chamber, 11 is a connecting cylinder, 12 is a motor, 13 is an exhaust pipe, 14 is a filter screen, 2 is a cleaning assembly, 21 is a rotating rod, 22 is a fan blade, 23 is a counterweight, 24 is a spring sliding rod I, 25 is a sliding block, 3 is a reciprocating assembly, 31 is a concave-convex plate, 32 is a sliding frame, 33 is a spring return rod, 4 is a balancing assembly, 41 is an oil storage cylinder, 42 is a piston rod, 43 is a hydraulic telescopic rod, 44 is an oil delivery pipe, 5 is a pushing assembly, 51 is a gas collection groove, 52 is a pressing ring, 521 is a push rod, 53 is a spring blocking ring, 54 is a push rod, 55 is a gas delivery pipe, 56 is a gas pressure telescopic rod, 561 is a connecting plate, 57 is a blocking block, 58 is a connecting rod, 581 is a spring block. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] Embodiment one, please refer to Figures 1-6 The present application is a waste gas treatment device for a paint spraying chamber in a coating workshop, which comprises a paint spraying chamber 1, a connecting cylinder 11 fixedly connected to the side wall of the paint spraying chamber 1, a motor 12 fixedly connected to the side wall of the connecting cylinder 11, an exhaust pipe 13 fixedly connected to the outer wall of the connecting cylinder 11, and a filter screen 14 fixedly connected to the inner wall of the exhaust pipe 13.

[0034] The cleaning assembly 2 comprises a fan blade 22, a rotating rod 21 for cleaning the surface of the fan blade 22, a counterweight 23, a spring sliding rod I 24, and a sliding block 25 for strengthening the surface cleaning of the fan blade 22, and a reciprocating assembly 3 for strengthening the surface cleaning of the fan blade 22.

[0035] ​​The side wall of the rotating rod 21 is fixedly connected with the side wall of the motor 12, the number of the fan blades 22, the counterweight blocks 23, the spring sliding rods one 24 and the sliding blocks 25 is four, the side wall of the four fan blades 22 is fixedly connected with the outer wall of the rotating rod 21, the inner wall of the four fan blades 22 is fixedly connected with the outer wall of the four spring sliding rods one 24, the inner wall of the four fan blades 22 is slidably connected with the outer wall of the four sliding blocks 25, the side wall of the four sliding blocks 25 is slidably connected with the side wall of the four counterweight blocks 23, the inner wall of the four sliding blocks 25 is slidably connected with the outer wall of the four spring sliding rods one 24, when the paint spraying work is carried out in the paint spraying chamber 1, the motor 12 is started to drive the rotating rod 21 to rotate, so that the fan blades 22 are rotated, the suction force generated by the rotation of the fan blades 22 can suck the waste gas in the paint spraying chamber 1 into the connecting cylinder 11, then the waste gas is introduced into the exhaust pipe 13 through the connecting cylinder 11, the waste gas is filtered through the filter screen 14, and the filtered waste gas is discharged through the exhaust pipe 13, wherein, during the rotation of the fan blades 22, the fan blades 22 can generate centrifugal force extending outward, the counterweight blocks 23 are affected by the centrifugal force, so that the counterweight blocks 23 move away from the rotating rod 21, when the counterweight blocks 23 move, the sliding blocks 25 are driven to move, so that the sliding blocks 25 press the spring sliding rods one 24, the spring sliding rods one 24 accumulate the elastic force, at the same time, during the continuous movement of the counterweight blocks 23, when the counterweight blocks 23 are in contact with the protruding positions of the concave-convex plates 31, the counterweight blocks 23 are pressed to move towards the sliding frames 32, so that the spring return rods 33 are pressed to accumulate the elastic force, when the counterweight blocks 23 are in contact with the recessed positions of the concave-convex plates 31, the elastic force of the spring return rods 33 is released, so that the counterweight blocks 23 are returned, in this way, the counterweight blocks 23 can move away from the rotating rod 21 and move transversely at the same time, different directions of force are applied to the paint particles on the surface of the fan blades 22, so that the paint particles attached to the surface of the fan blades 22 can be removed, wherein, when the counterweight blocks 23 move to the edge of the fan blades 22, the counterweight blocks 23 are in contact with the recessed positions of the concave-convex plates 31, and the side, away from the counterweight blocks 23, of the sliding frames 32 can block the spring return rods 33, so that the counterweight blocks 23 are prevented from shaking when the fan blades 22 rotate, the paint particles on the surface of the fan blades 22 are self-cleaned when the fan blades 22 rotate, the accumulation of the paint particles on the surface of the fan blades 22 is effectively prevented, the surface of the fan blades 22 is kept smooth, the waste gas can smoothly flow through the surface of the fan blades 22, and the waste gas can be effectively discharged.

[0036] Embodiment two, please refer to Figures 7-8 The present application is a kind of waste gas treatment device for paint spraying chamber in painting workshop, on the basis of example one, reciprocating assembly 3 includes concave-convex plate 31 fixedly connected in the side wall of fan blade 22, four fan blades 22 away from one side of concave-convex plate 31 are all fixedly connected with sliding frame 32, the shape of four concave-convex plates 31 is all wave-shaped, the side wall of four counterweight blocks 23 is slidably connected with the side wall of four concave-convex plates 31.

[0037] The reciprocating assembly 3 further comprises spring return rods 33 fixedly connected to the counterweights 23 away from the concave-convex plate 31, outer walls of the four spring return rods 33 are slidably connected with inner walls of the four sliding frames 32, and inner walls of the rotating rod 21 are provided with the balancing assembly 4.

[0038] The balancing assembly 4 comprises an oil storage cylinder 41 fixedly connected to the inner walls of the rotating rod 21, a piston rod 42 slidably connected to the inner walls of the oil storage cylinder 41, hydraulic oil arranged in the inner walls of the oil storage cylinder 41, four hydraulic telescopic rods 43 fixedly connected to the inner walls of the rotating rod 21, and the pushing assembly 5 arranged in the inner walls of the rotating rod 21.

[0039] The balancing assembly 4 further comprises four oil delivery pipes 44 throughly connected to the side walls of the oil storage cylinder 41, outer walls of the four oil delivery pipes 44 are throughly connected with inner walls of the four hydraulic telescopic rods 43, and one side of the four hydraulic telescopic rods 43 close to the fan blades 22 is slidably connected with one side of the four counterweights 23 close to the rotating rod 21. When the counterweights 23 move, the hydraulic telescopic rods 43 also move, the inner space of the hydraulic telescopic rods 43 increases, suction force is generated in the inner space, the hydraulic oil in the oil storage cylinder 41 is sucked into the hydraulic telescopic rods 43 through the oil delivery pipes 44, the hydraulic oil in the oil storage cylinder 41 is reduced, the piston rod 42 is moved by the suction of the hydraulic oil, the space in the oil storage cylinder 41 is compressed by the movement of the piston rod 42, so that the hydraulic oil in the oil storage cylinder 41 is moved, the hydraulic oil can enter the multiple oil delivery pipes 44 at the same time, and finally enters the hydraulic telescopic rods 43 through the oil delivery pipes 44 to support the counterweights 23. By supporting the counterweights 23, the multiple counterweights 23 are simultaneously located at the edges of the fan blades 22, effectively preventing the center of gravity of the fan blades 22 from deviating when the fan blades 22 rotate.

[0040] The pushing assembly 5 comprises a gas collection groove 51 arranged in the inner walls of the rotating rod 21, an extrusion ring 52 slidably connected to the inner walls of the gas collection groove 51, the side walls of the extrusion ring 52 are fixedly connected with the side walls of the piston rod 42, and four push rods 521 are fixedly connected to the side walls of the extrusion ring 52.

[0041] The pushing assembly 5 further comprises a spring blocking ring 53 slidingly connected at the inner wall of the gas collecting groove 51, a pushing rod 54 fixedly connected at the side wall of the spring blocking ring 53, four gas conveying pipes 55 fixedly connected at the inner wall of the rotating rod 21, and the outer wall of the four gas conveying pipes 55 is in through connection with the inner wall of the gas collecting groove 51. When the piston rod 42 moves, the extrusion ring 52 and the pushing rod 521 will also move, and at the same time, the piston rod 42 will be separated from the pushing rod 54, canceling the blocking of the spring blocking ring 53. Since the spring blocking ring 53 is in a stretched state, the springback force of the spring blocking ring 53 will be released, allowing the spring blocking ring 53 to reset and block the gas conveying pipe 55, so that the gas collecting groove 51 is in a closed state.

[0042] The pushing assembly 5 further comprises four air pressure telescopic rods 56 fixedly connected at the inner wall of the rotating rod 21, the inner wall of the four air pressure telescopic rods 56 is in through connection with the outer wall of the four gas conveying pipes 55, the left side of the four counterweights 23 is fixedly connected with a connecting plate 561, and the side close to the rotating rod 21 of the four connecting plates 561 is slidingly connected with the side close to the fan blade 22 of the four air pressure telescopic rods 56. At this time, the movement of the extrusion ring 52 will extrude the gas in the gas collecting groove 51, and the gas will be blocked by the spring blocking ring 53, so that the pressure of the gas will increase. At the same time, when the counterweight 23 moves away from the rotating rod 21, the connecting plate 561 will also move, and the connecting plate 561 will drive the air pressure telescopic rod 56 to move. When the counterweight 23 moves to the edge of the fan blade 22, the pushing rod 521 will push the spring blocking ring 53 to move, canceling the blocking of the gas conveying pipe 55, and the high-pressure gas will enter the gas conveying pipe 55.

[0043] The pushing assembly 5 further comprises a blocking block 57 rotatingly connected at the inner wall of the gas conveying pipe 55, and the outer wall of the rotating rod 21 is provided with four connecting rods 58, and the side wall of the four connecting rods 58 is fixedly connected with the side wall of the four blocking blocks 57.

[0044] The pushing assembly 5 further comprises four spring blocks 581 fixedly connected at the outer wall of the rotating rod 21, the side wall of the four spring blocks 581 is fixedly connected with the side wall of the four connecting rods 58 through springs, and the shape of the four connecting rods 58 is Z-shaped. Among the plurality of fan blades 22, a larger paint block is adhered to a single fan blade 22. When the counterweight 23 on the fan blade 22 is blocked by the larger paint block, at this time, the remaining counterweights 23 are affected by the centrifugal force generated by the rotation of the fan blade 22, so that they move to the edge of the fan blade 22. The protruding position of the connecting plate 561 will be in contact with the connecting rod 58, thereby driving the connecting rod 58 to rotate.

[0045] The number of the above-mentioned assemblies is not limited, and those skilled in the art can freely set according to actual needs, as long as the above-mentioned assemblies are installed at the connecting position of the corresponding assembly.

[0046] One specific application of the embodiment is that when the paint spraying chamber 1 is used for paint spraying work, the motor 12 is started to drive the rotating rod 21 to rotate, so that the fan blades 22 rotate, and the suction force generated by the rotation of the fan blades 22 can suck the waste gas in the paint spraying chamber 1 into the connecting cylinder 11, and then into the exhaust pipe 13 through the connecting cylinder 11, and then the waste gas is filtered through the filter screen 14, and then the filtered waste gas is discharged through the exhaust pipe 13. During the rotation of the fan blades 22, the fan blades 22 will generate centrifugal force extending outward, the counterweight 23 will be affected by the centrifugal force, and the counterweight 23 will move away from the rotating rod 21. When the counterweight 23 moves, it will drive the sliding block 25 to move, so that the sliding block 25 presses the spring sliding rod one 24 to accumulate the elastic force of the spring sliding rod one 24. At the same time, during the continuous movement of the counterweight 23, when the counterweight 23 contacts the protruding position of the concave-convex plate 31, the counterweight 23 will be pressed and move towards the sliding frame 32, so that the spring return rod 33 is pressed and accumulates elastic force. When the counterweight 23 contacts the recessed position of the concave-convex plate 31, the elastic force of the spring return rod 33 will be released, so that the counterweight 23 returns to the original position. In this way, the counterweight 23 can move away from the rotating rod 21 while moving laterally, and the paint particles on the surface of the fan blades 22 can be removed by applying different forces in different directions. When the counterweight 23 moves to the edge of the fan blades 22, the counterweight 23 will contact the recessed position of the concave-convex plate 31, and the side of the sliding frame 32 away from the counterweight 23 will block the spring return rod 33, preventing the counterweight 23 from shaking when the fan blades 22 rotate. By self-cleaning the paint particles on the surface of the fan blades 22 during rotation, the accumulation of paint particles on the surface of the fan blades 22 is effectively prevented, ensuring that the surface of the fan blades 22 remains smooth, so that the waste gas can flow smoothly over the surface of the fan blades 22, and the waste gas can be effectively discharged;

[0047] Secondly, when the counterweight 23 moves, it also moves the hydraulic telescopic rod 43, the internal space of the hydraulic telescopic rod 43 increases, and suction is generated inside, so that the hydraulic oil in the oil storage cylinder 41 is sucked into the hydraulic telescopic rod 43 through the oil pipe 44, the hydraulic oil in the oil storage cylinder 41 is reduced, and the hydraulic oil attracts the piston rod 42 to move, the piston rod 42 moves, the space in the oil storage cylinder 41 is compressed, so that the hydraulic oil in the oil storage cylinder 41 moves, and the hydraulic oil can enter multiple oil pipes 44 at the same time. Finally, the hydraulic oil enters the hydraulic telescopic rod 43 through the oil pipe 44 to support the counterweight 23, and the multiple counterweights 23 are simultaneously located at the edge of the fan blade 22 by supporting the counterweight 23, effectively preventing the center of gravity of the fan blade 22 from shifting when the fan blade 22 rotates. For example, when the fan blade 22 is vertically upward, the counterweight 23 may be affected by gravity and may drop, resulting in uneven distribution of multiple counterweights 23, breaking the balance of the fan blade 22 rotation, and causing the center of gravity of the fan blade 22 to shift, thereby affecting the stability of the fan blade 22 rotation;

[0048] Secondly, when the piston rod 42 moves, it also moves the extrusion ring 52 and the push rod 521, and at the same time, the piston rod 42 is separated from the push rod 54, canceling the blocking of the spring blocking ring 53. Since the spring blocking ring 53 is in a stretched state, the spring force of the spring blocking ring 53 is released, and the spring blocking ring 53 is reset to block the gas pipe 55, so that the gas tank 51 is in a closed state. At this time, the movement of the extrusion ring 52 will extrude the gas in the gas tank 51, and the gas will be blocked by the spring blocking ring 53, so the pressure of the gas will increase. At the same time, when the counterweight 23 moves away from the rotating rod 21, the connecting plate 561 moves, and the connecting plate 561 moves the gas pressure telescopic rod 56. When the counterweight 23 moves to the edge of the fan blade 22, the push rod 521 pushes the spring blocking ring 53 to move, canceling the blocking of the gas pipe 55, and the high-pressure gas enters the gas pipe 55 and enters the gas pressure telescopic rod 56 through the gas pipe 55, pushing the gas pressure telescopic rod 56 to move and exerting an additional pushing force on the counterweight 23. Effectively prevent a large paint block from adhering to the surface of a single fan blade 22, and the counterweight 23 on the fan blade 22 is blocked by the large paint block and is difficult to move into position, and by applying an additional pushing force, the pushing force of the counterweight 23 is increased, facilitating the removal of the large paint block;

[0049] When the paint spraying is stopped in the paint spraying chamber 1, the motor 12 is stopped to stop the rotation of the rotating rod 21 and the fan blades 22, and the spring sliding rod 24 is released to return the counterweight 23, which returns the hydraulic telescopic rod 43, and the hydraulic telescopic rod 43 is pressed to enter the hydraulic oil into the oil storage cylinder 41 to return the piston rod 42, so that the piston rod 42 contacts the push rod 54, the push rod 54 and the spring blocking ring 53 are moved, the spring blocking ring 53 is stretched, the gas pipe 55 is communicated with the gas collecting groove 51 again, and the gas in the gas telescopic rod 56 enters the gas collecting groove 51 again to complete the deflation of the gas telescopic rod 56;

[0050] Secondly, among the plurality of fan blades 22, a single fan blade 22 adheres to a large paint block, when the counterweight 23 on the fan blade 22 is blocked by the large paint block, at this time, the remaining counterweights 23 are affected by the centrifugal force generated by the rotation of the fan blade 22 to move to the edge of the fan blade 22, the protruding position of the connecting plate 561 contacts the connecting rod 58 to push the connecting rod 58 to rotate and compress the spring block 581 to accumulate the elastic force, and the connecting rod 58 rotates to drive the blocking block 57 to rotate, so that the blocking block 57 blocks the gas pipe 55, when the high-pressure gas enters the gas pipe 55, it is blocked by the blocking block 57, and the counterweight 23 blocked by the large paint block has not moved to the position, so the high-pressure gas enters the gas pipe 55 to concentrate the gas, effectively preventing the gas from being dispersed to affect the thrust of the counterweight 23.

[0051] The preferred embodiments disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details and do not limit the application to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of the specification. The specification selects and describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A waste gas treatment device for a paint spraying booth in a painting workshop, comprising a paint spraying booth (1), wherein a connecting cylinder (11) is fixedly connected to the side wall of the paint spraying booth (1), a motor (12) is fixedly connected to the side wall of the connecting cylinder (11), an exhaust pipe (13) is fixedly connected to the outer wall of the connecting cylinder (11), and a filter screen (14) is fixedly connected to the inner wall of the exhaust pipe (13), characterized in that, Also includes: Cleaning assembly (2), the cleaning assembly (2) includes a fan blade (22), a rotating rod (21), a counterweight (23), a spring sliding rod (24), a sliding block (25) for cleaning the surface of the fan blade (22), and a reciprocating assembly (3) for enhancing the cleaning of the surface of the fan blade (22); The side wall of the rotating rod (21) is fixedly connected to the output end of the side wall of the motor (12). The number of fan blades (22), counterweights (23), spring sliding rods (24) and sliding blocks (25) are all four. The side walls of the four fan blades (22) are fixedly connected to the outer wall of the rotating rod (21). The inner walls of the four fan blades (22) are fixedly connected to the outer walls of the four spring sliding rods (24). The inner walls of the four fan blades (22) are slidably connected to the outer walls of the four sliding blocks (25). The side walls of the four sliding blocks (25) are slidably connected to the side walls of the four counterweights (23). The inner walls of the four sliding blocks (25) are slidably connected to the outer walls of the four spring sliding rods (24). The reciprocating assembly (3) includes a concave-convex plate (31) fixedly connected to the side wall of the fan blade (22). Each of the four fan blades (22) is fixedly connected to a sliding frame (32) on the side away from the concave-convex plate (31). The four concave-convex plates (31) are all wavy in shape. The side walls of the four counterweights (23) are slidably connected to the side walls of the four concave-convex plates (31). The reciprocating assembly (3) also includes a spring return rod (33) fixedly connected to the side of the counterweight (23) away from the concave and convex plate (31). The outer walls of the four spring return rods (33) are slidably connected to the inner walls of the four sliding frames (32). The inner wall of the rotating rod (21) is provided with a balance assembly (4). The balancing assembly (4) includes an oil reservoir (41) fixedly connected to the inner wall of the rotating rod (21), a piston rod (42) slidably connected to the inner wall of the oil reservoir (41), hydraulic oil being provided on the inner wall of the oil reservoir (41), four hydraulic telescopic rods (43) fixedly connected to the inner wall of the rotating rod (21), and a pushing assembly (5) being provided on the inner wall of the rotating rod (21). The balancing assembly (4) also includes four oil pipes (44) that are connected through to the side wall of the oil reservoir (41). The outer walls of the four oil pipes (44) are connected through to the inner walls of the four hydraulic telescopic rods (43). The side of the four hydraulic telescopic rods (43) near the fan blade (22) is slidably connected to the side of the four counterweights (23) near the rotating rod (21).

2. The exhaust gas treatment device for a painting workshop spray booth according to claim 1, characterized in that: The pushing assembly (5) includes an air collection groove (51) opened on the inner wall of the rotating rod (21), and a compression ring (52) is slidably connected to the inner wall of the air collection groove (51). The side wall of the compression ring (52) is fixedly connected to the side wall of the piston rod (42), and four push rods (521) are fixedly connected to the side wall of the compression ring (52).

3. The exhaust gas treatment device for a painting workshop spray booth according to claim 2, characterized in that: The pushing assembly (5) also includes a spring blocking ring (53) slidably connected to the inner wall of the gas collecting groove (51). A pushing rod (54) is fixedly connected to the side wall of the spring blocking ring (53). Four gas supply pipes (55) are fixedly connected to the inner wall of the rotating rod (21). The outer walls of the four gas supply pipes (55) are all connected to the inner wall of the gas collecting groove (51).

4. The exhaust gas treatment device for a painting workshop spray booth according to claim 3, characterized in that: The pushing assembly (5) also includes four pneumatic telescopic rods (56) fixedly connected to the inner wall of the rotating rod (21). The inner walls of the four pneumatic telescopic rods (56) are all connected to the outer walls of the four air supply pipes (55). The left side of each of the four counterweights (23) is fixedly connected to a connecting plate (561). The side of each connecting plate (561) near the rotating rod (21) is slidably connected to the side of each pneumatic telescopic rod (56) near the fan blade (22).

5. The exhaust gas treatment device for a painting workshop spray booth according to claim 4, characterized in that: The pushing assembly (5) also includes a blocking block (57) rotatably connected to the inner wall of the gas pipe (55). Four connecting rods (58) are provided on the outer wall of the rotating rod (21). The side walls of the four connecting rods (58) are fixedly connected to the side walls of the four blocking blocks (57).

6. The exhaust gas treatment device for a painting workshop spray booth according to claim 5, characterized in that: The pushing assembly (5) also includes four spring blocks (581) fixedly connected to the outer wall of the rotating rod (21). The side walls of the four spring blocks (581) are fixedly connected to the side walls of the four connecting rods (58) by springs. The four connecting rods (58) are all Z-shaped.

Images