Waste gas treatment device for paint spraying chamber of coating workshop

Abstract

The invention relates to the technical field of waste gas treatment, and discloses a coating workshop spray booth waste gas treatment device which comprises a spray booth, a connecting cylinder is fixedly connected to the side wall of the spray booth, 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, and the motor is started to drive a rotating rod to rotate. The fan blades can generate centrifugal force extending outwards, a balancing weight is influenced by the centrifugal force and can be far away from a rotating rod to drive a sliding block to move, the sliding block extrudes a first spring sliding rod, and when the balancing weight makes contact with the protruding position of a concave-convex plate, the balancing weight is extruded and moves in the direction of a sliding frame; therefore, the balancing weight can transversely move at the same time in the process of being away from the rotating rod, force in different directions is applied to paint liquid particles on the surfaces of the fan blades, the paint liquid particles attached to the surfaces of the fan blades can be removed, accumulation of the paint liquid particles on the surfaces of the fan blades is effectively prevented, and it is guaranteed that the surfaces of the fan blades are kept smooth.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment equipment, and in particular to a waste gas treatment device for a spray booth in a coating workshop. Background Art

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

[0003] Among them, when treating the exhaust gas in the paint spraying room, a fan is often used to suck the exhaust gas into the pipe, and the exhaust gas is discharged through the filter. However, when spraying paint in the paint spraying room, some paint particles may be attracted by the airflow generated by the fan into the pipe and come into contact with the fan blades. The paint particles may adhere to the fan blades. If time passes, the paint particles will accumulate on the surface of the fan blades, affecting the stability of the fan blade rotation, making the air suction effect worse, and affecting the discharge of exhaust gas. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an exhaust gas treatment device for a spray booth in a coating workshop, comprising a spray booth, a connecting cylinder is fixedly connected to the side wall of the spray booth, 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, and a filter is fixedly connected to the inner wall of the exhaust pipe;

[0005] A cleaning assembly, the cleaning assembly includes a fan blade, a rotating rod for cleaning the surface of the fan blade, a counterweight, a spring sliding rod, a sliding block, and a reciprocating assembly for strengthening the cleaning of the fan blade surface;

[0006] The side wall of the rotating rod is fixedly connected to the output end of the side wall of the motor. The number of fan blades, counterweight blocks, spring sliding rods and sliding blocks is four. The side walls of the four fan blades are fixedly connected to the outer wall of the rotating rod. The inner walls of the four fan blades are fixedly connected to the outer walls of the four spring sliding rods. The inner walls of the four fan blades are slidably connected to the outer walls of the four sliding blocks. The side walls of the four sliding blocks are slidably connected to the side walls of the four counterweight blocks. The inner walls of the four sliding blocks are slidably connected to the outer walls of the four spring sliding rods. When spraying paint in the paint spraying room, the starting motor drives the rotating rod to rotate, so that the fan blades rotate. The attraction generated by the rotation of the fan blades will suck the exhaust gas in the paint spraying room into the connecting tube, and enter the exhaust pipe through the connecting tube. The exhaust gas is filtered through the filter net and discharged through the exhaust pipe. In the process of the rotation of the fan blades, the fan blades will generate centrifugal force extending outward. The counterweight block is affected by the centrifugal force, and the counterweight block will move away from the rotating rod. When the counterweight block moves, it will drive the sliding block to move, so that the sliding block squeezes the spring slide The moving rod 1 makes the spring sliding rod 1 accumulate rebound force. At the same time, during the continuous movement of the counterweight block, when the counterweight block contacts the convex position of the concave-convex plate, the counterweight block will be squeezed and move toward the sliding frame, so that the spring return rod is squeezed and accumulates rebound force. When the counterweight block contacts the concave position of the concave-convex plate, the rebound force of the spring return rod will be released, allowing the counterweight block to return to its position. This reciprocating process allows the counterweight block to move laterally while moving away from the rotating rod, exerting forces in different directions on the paint particles on the surface of the fan blade. The paint particles attached to the surface of the fan blade can be removed, wherein, when the counterweight moves to the edge of the fan blade, the counterweight will contact the recessed position of the concave-convex plate, and the side of the sliding frame away from the counterweight will block the spring return rod to prevent the counterweight from shaking when the fan blade rotates. When the fan blade rotates, the paint particles on its own surface are self-cleaned, which effectively prevents the accumulation of paint particles on the surface of the fan blade, ensures that the surface of the fan blade remains smooth, and allows the exhaust gas to flow smoothly through the surface of the fan blade, maintaining a good exhaust gas discharge effect.

[0007] Preferably, the reciprocating assembly includes a concave-convex plate fixedly connected to the side wall of the fan blade, and the four fan blades are fixedly connected to a sliding frame on the side away from the concave-convex plate. The four concave-convex plates are all wavy in shape, and the side walls of the four counterweights are slidably connected to the side walls of the four concave-convex plates.

[0008] Preferably, the reciprocating assembly also includes a spring return rod fixedly connected to the side of the counterweight away from the concave-convex plate, the outer walls of the four spring return rods are slidably connected to the inner walls of the four sliding frames, and a balancing assembly is arranged on the inner wall of the rotating rod.

[0009] Preferably, the balancing assembly includes an oil storage cylinder fixedly connected to the inner wall of the rotating rod, a piston rod is slidably connected to the inner wall of the oil storage cylinder, hydraulic oil is provided on the inner wall of the oil storage cylinder, four hydraulic telescopic rods are fixedly connected to the inner wall of the rotating rod, and a pushing assembly is provided on the inner wall of the rotating rod.

[0010] Preferably, the balancing assembly also includes four oil pipes that are connected to the side walls of the oil storage cylinder, the outer walls of the four oil pipes are connected to the inner walls of the four hydraulic telescopic rods, and the sides of the four hydraulic telescopic rods close to the fan blades are slidably connected to the sides of the four counterweights close to the rotating rods. When the counterweights move, the hydraulic telescopic rods will also be driven to move, and the internal space of the hydraulic telescopic rods will increase, generating suction inside the hydraulic telescopic rods, which will attract the hydraulic oil in the oil storage cylinder into the hydraulic telescopic rods through the oil pipes, reducing the hydraulic oil in the oil storage cylinder, and the hydraulic oil will attract the piston rod to move. When the piston rod moves, it will compress the space in the oil storage cylinder, thereby pushing the hydraulic oil in the oil storage cylinder to move, so that the hydraulic oil can enter multiple oil pipes at the same time, and finally enter the hydraulic telescopic rod through the oil pipes to support the counterweights. By supporting the counterweights, multiple counterweights are simultaneously at the edge of the fan blades, effectively preventing the center of gravity of the fan blades from shifting when the fan blades rotate.

[0011] Preferably, the pushing assembly includes an air collecting groove opened on the inner wall of the rotating rod, the inner wall of the air collecting groove is slidably connected with an extrusion ring, the side wall of the extrusion 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 extrusion ring.

[0012] Preferably, the pushing assembly also includes a spring blocking ring slidably connected to the inner wall of the air collecting groove, a pushing rod is fixedly connected to the side wall of the spring blocking ring, four air pipes are fixedly connected to the inner wall of the rotating rod, and the outer walls of the four air pipes are through-connected to the inner wall of the air collecting groove. When the piston rod moves, it will also drive the extrusion ring and the push rod to move. At the same time, when the piston rod moves, it will separate from the push rod, canceling the blocking of the spring blocking ring. Since the spring blocking ring is in a stretched state, the rebound force of the spring blocking ring will be released, allowing the spring blocking ring to return to its position, blocking the air pipe, and making the air collecting groove in a closed state.

[0013] Preferably, the pushing assembly also includes four pneumatic telescopic rods fixedly connected to the inner wall of the rotating rod, the inner walls of the four pneumatic telescopic rods are through-connected to the outer walls of the four gas pipes, the left sides of the four counterweights are fixedly connected with connecting plates, the sides of the four connecting plates close to the rotating rod are slidably connected to the sides of the four pneumatic telescopic rods close to the fan blades. At this time, the movement of the extrusion ring will squeeze the gas in the gas collecting groove, and the gas will be blocked by the spring blocking ring, so the gas pressure will increase. At the same time, when the counterweight is away from the rotating rod, it will also drive the connecting plate to move, and the connecting plate will drive the pneumatic 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, thereby canceling the blockage of the gas pipe, and high-pressure gas will enter the gas pipe.

[0014] Preferably, the pushing assembly also includes a blocking block rotatably connected to the inner wall of the gas pipe, and four connecting rods are provided on the outer wall of the rotating rod, and the side walls of the four connecting rods are fixedly connected to the side walls of the four blocking blocks.

[0015] Preferably, the pushing assembly also includes four spring blocks fixedly connected to the outer wall of the rotating rod, and the side walls of the four spring blocks are fixedly connected to the side walls of the four connecting rods through springs. The shape of the four connecting rods is Z-shaped. Among the multiple fan blades, a single fan blade is adhered with a larger paint block. When the counterweight block on the fan blade is blocked by the larger paint block, the remaining counterweight blocks are affected by the centrifugal force generated when the fan blade rotates, causing them to move to the edge of the fan blade, and the raised position of the connecting plate will contact the connecting rod, thereby pushing the connecting rod to rotate.

[0016] The present invention has the following beneficial effects:

[0017] (1) When the present invention is used, when paint spraying is carried out in the paint spraying room, the starting motor drives the rotating rod to rotate, thereby causing the fan blades to rotate. The attraction generated by the rotation of the fan blades will suck the exhaust gas in the paint spraying room into the connecting tube, and then enter the exhaust pipe through the connecting tube. The exhaust gas is filtered through the filter net and discharged through the exhaust pipe. During the rotation of the fan blades, the fan blades will generate centrifugal force extending outward. The counterweight block is affected by the centrifugal force and moves away from the rotating rod. When the counterweight block moves, it drives the sliding block to move, causing the sliding block to squeeze the spring sliding rod 1, so that the spring sliding rod 1 accumulates rebound force. At the same time, during the continuous movement of the counterweight block, when the counterweight block contacts the protruding position of the concave-convex plate, the counterweight block will be squeezed and move toward the sliding frame, causing the spring return rod to be squeezed and accumulated. The counterweight block accumulates rebound force. When the counterweight block contacts the recessed position of the concave-convex plate, the rebound force of the spring return rod will be released, allowing the counterweight block to return to its position. In this way, the counterweight block can move laterally while moving away from the rotating rod, exerting forces in different directions on the paint particles on the surface of the fan blade, so as to remove the paint particles attached to the surface of the fan blade. When the counterweight block moves to the edge of the fan blade, the counterweight block will contact the recessed position of the concave-convex plate, and the side of the sliding frame away from the counterweight block will block the spring return rod to prevent the counterweight block from shaking when the fan blade rotates. When the fan blade rotates, the paint particles on its own surface are self-cleaned, which effectively prevents the accumulation of paint particles on the surface of the fan blade, ensures that the surface of the fan blade remains smooth, and allows the exhaust gas to flow smoothly through the surface of the fan blade, maintaining a good exhaust gas discharge effect.

[0018] (2) When the counterweight block of the present invention moves, it will also drive the hydraulic telescopic rod to move. The internal space of the hydraulic telescopic rod will increase, generating suction inside it, and then attracting the hydraulic oil in the oil storage cylinder into the hydraulic telescopic rod through the oil pipe, reducing the hydraulic oil in the oil storage cylinder. The hydraulic oil will attract the piston rod to move. The movement of the piston rod will compress the space in the oil storage cylinder, thereby pushing the hydraulic oil in the oil storage cylinder to move, so that the hydraulic oil can enter multiple oil pipes at the same time, and finally enter the hydraulic telescopic rod through the oil pipe to support the counterweight block. By supporting the counterweight block, multiple counterweight blocks can be placed at the edge of the fan blade at the same time, effectively preventing the center of gravity of the fan blade from shifting when the fan blade rotates. For example, when the fan blade is vertically facing upward, the counterweight block may fall due to the influence of its own weight, resulting in uneven distribution of multiple counterweight blocks, breaking the balanced state of the fan blade rotation, causing the center of gravity of the fan blade to shift, thereby affecting the stability of the fan blade rotation.

[0019] (3) When the piston rod of the present invention moves, it will also drive the extrusion ring and the push rod to move. At the same time, when the piston rod moves, it will separate from the push rod, canceling the blocking of the spring blocking ring. Since the spring blocking ring is in a stretched state, the rebound force of the spring blocking ring will be released, allowing the spring blocking ring to return to its original position, blocking the gas pipe and making the gas collecting tank in a closed state. At this time, the movement of the extrusion ring will squeeze the gas in the gas collecting tank, and the gas will be blocked by the spring blocking ring, so the gas pressure will increase. At the same time, when the counterweight block is away from the rotating rod, it will also bring The connecting plate is moved, and the connecting plate drives the pneumatic 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, canceling the obstruction to the air pipe, and the high-pressure gas enters the air pipe and enters the pneumatic telescopic rod through the air pipe, pushing the pneumatic telescopic rod to move, applying additional thrust to the counterweight, and effectively preventing larger paint blocks from adhering to the surface of a single fan blade. When the counterweight on the fan blade is blocked by the large paint block when moving and is difficult to move into place, the thrust of the counterweight is increased by applying additional thrust, making it easier to remove the large paint block.

[0020] (4) Among the multiple blades of the present invention, a single blade is adhered with a larger paint block. When the counterweight block on the blade is blocked by the larger paint block, the remaining counterweight block is affected by the centrifugal force generated when the blade rotates, causing it to move to the edge of the blade. The raised position of the connecting plate will contact the connecting rod, thereby pushing the connecting rod to rotate and squeezing the spring block, allowing the spring block to accumulate rebound force. When the connecting rod rotates, it will also drive the blocking block to rotate, allowing the blocking block to block the gas pipe. When high-pressure gas enters the gas pipe, it will be blocked by the blocking block, and the counterweight block blocked by the larger paint block has not yet moved into place. Therefore, the high-pressure gas will enter the gas pipe, thereby concentrating the gas and effectively preventing the gas from dispersing and affecting the thrust of the counterweight block. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the connecting tube of the present invention;

[0024] Figure 3 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the fan blade structure of the present invention;

[0026] Figure 5 It is a cross-sectional schematic diagram of the hydraulic telescopic rod of the present invention;

[0027] Figure 6 For the present invention Figure 5 A is an enlarged schematic diagram;

[0028] Figure 7 It is a cross-sectional schematic diagram of the rotating rod of the present invention;

[0029] Figure 8 For the present invention Figure 7 A magnified schematic diagram of B.

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

[0031] In the figure: 1. spray booth; 11. connecting tube; 12. motor; 13. exhaust pipe; 14. filter; 2. cleaning assembly; 21. rotating rod; 22. fan blade; 23. counterweight; 24. spring sliding rod 1; 25. sliding block; 3. reciprocating assembly; 31. concave-convex plate; 32. sliding frame; 33. spring return rod; 4. balancing assembly; 41. oil storage cylinder; 42. piston rod; 43. hydraulic telescopic rod; 44. oil pipeline; 5. pushing assembly; 51. air collecting groove; 52. extrusion ring; 521. push rod; 53. spring blocking ring; 54. push rod; 55. air pipeline; 56. pneumatic telescopic rod; 561. connecting plate; 57. blocking block; 58. connecting rod; 581. spring block. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] For example, see Figure 1-Figure 6 The present invention is an exhaust gas treatment device for a spray booth in a coating workshop, comprising a spray booth 1, a connecting tube 11 is fixedly connected to the side wall of the spray booth 1, a motor 12 is fixedly connected to the side wall of the connecting tube 11, an exhaust pipe 13 is fixedly connected to the outer wall of the connecting tube 11, and a filter screen 14 is fixedly connected to the inner wall of the exhaust pipe 13;

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

[0035] 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 the fan blades 22, the counterweight block 23, the spring sliding rod 24 and the sliding block 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 counterweight blocks 23, and the inner walls of the four sliding blocks 25 are slidably connected to the outer walls of the four spring sliding rods 24 When the paint spraying work is carried out in the paint spraying room 1, the starting motor 12 drives the rotating rod 21 to rotate, so that the fan blades 22 rotate. The attraction generated by the rotation of the fan blades 22 will suck the exhaust gas in the paint spraying room 1 into the connecting tube 11, and enter the exhaust pipe 13 through the connecting tube 11. The exhaust gas is filtered through the filter 14, and the filtered exhaust gas is discharged through the exhaust pipe 13. In the process of the rotation of the fan blades 22, the fan blades 22 will generate a centrifugal force extending outward. The counterweight block 23 is affected by the centrifugal force, and the counterweight block 23 will move away from the rotating rod 21. When the counterweight block 23 moves, it will drive the sliding block 25 to move, so that the sliding block 25 The spring sliding rod 24 is squeezed to accumulate resilience in the spring sliding rod 24. At the same time, during the continuous movement of the counterweight block 23, when the counterweight block 23 contacts the protruding position of the concave-convex plate 31, the counterweight block 23 will be squeezed and move toward the sliding frame 32, so that the spring return rod 33 is squeezed and accumulates resilience. When the counterweight block 23 contacts the concave position of the concave-convex plate 31, the resilience of the spring return rod 33 is released, so that the counterweight block 23 returns to its original position. In this way, the counterweight block 23 can move laterally while moving away from the rotating rod 21, so as to exert different directions on the paint particles on the surface of the fan blade 22. The force applied to the fan blade 22 can remove the paint particles attached to the surface of the fan blade 22, wherein when the counterweight 23 moves to the edge of the fan blade 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 to prevent the counterweight 23 from shaking when the fan blade 22 rotates. When the fan blade 22 rotates, the paint particles on its own surface are self-cleaned, which effectively prevents the paint particles on the surface of the fan blade 22 from accumulating, ensuring that the surface of the fan blade 22 remains smooth, allowing the exhaust gas to flow smoothly through the surface of the fan blade 22, and maintaining a good exhaust effect on the exhaust gas.

[0036] For example 2, please refer to Figure 7-Figure 8 The present invention is an exhaust gas treatment device for a paint spraying room in a coating workshop. Based on Example 1, the reciprocating component 3 includes a concave-convex plate 31 fixedly connected to the side wall of the fan blade 22, and the four fan blades 22 are fixedly connected to a sliding frame 32 on one side away from the concave-convex plate 31. The four concave-convex plates 31 are all wavy in shape, and the side walls of the four counterweights 23 are slidably connected to the side walls of the four concave-convex plates 31.

[0037] The reciprocating assembly 3 also includes a spring return rod 33 fixedly connected to the side of the counterweight block 23 away from the concave-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. A balancing assembly 4 is provided on the inner wall of the rotating rod 21.

[0038] The balancing assembly 4 includes an oil storage cylinder 41 fixedly connected to the inner wall of the rotating rod 21, a piston rod 42 is slidably connected to the inner wall of the oil storage cylinder 41, hydraulic oil is provided on the inner wall of the oil storage cylinder 41, four hydraulic telescopic rods 43 are fixedly connected to the inner wall of the rotating rod 21, and a pushing assembly 5 is provided on the inner wall of the rotating rod 21.

[0039] The balancing assembly 4 also includes four oil delivery pipes 44 connected to the side wall of the oil storage cylinder 41. The outer walls of the four oil delivery pipes 44 are connected to the inner walls of the four hydraulic telescopic rods 43. The sides of the four hydraulic telescopic rods 43 close to the fan blades 22 are slidably connected to the sides of the four counterweights 23 close to the rotating rod 21. When the counterweights 23 move, the hydraulic telescopic rods 43 are also driven to move. The internal space of the hydraulic telescopic rods 43 will increase, so that suction is generated inside, and the hydraulic oil in the oil storage cylinder 41 will be attracted into the hydraulic telescopic rods 43 through the oil delivery pipes 44. The hydraulic oil in the oil reservoir 41 is reduced by moving the piston rod 42 inside the oil reservoir 41, and the hydraulic oil will attract the piston rod 42 to move. The movement of the piston rod 42 will compress the space inside the oil reservoir 41, thereby pushing the hydraulic oil in the oil reservoir 41 to move, so that the hydraulic oil can enter multiple oil pipes 44 at the same time, and finally enter the hydraulic telescopic rod 43 through the oil pipes 44 to support the counterweight block 23. By supporting the counterweight block 23, multiple counterweight blocks 23 can be placed at the edge of the fan blade 22 at the same time, which effectively prevents the center of gravity of the fan blade 22 from shifting when the fan blade 22 rotates.

[0040] The pushing assembly 5 includes an air collecting groove 51 opened on the inner wall of the rotating rod 21, and an extrusion ring 52 is slidably connected to the inner wall of the air collecting groove 51. The side wall of the extrusion 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 extrusion ring 52.

[0041] 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, and four gas pipes 55 are fixedly connected to the inner wall of the rotating rod 21. The outer walls of the four gas pipes 55 are all through-connected to the inner wall of the gas collecting groove 51. When the piston rod 42 moves, it will also drive the extrusion ring 52 and the push rod 521 to move. At the same time, when the piston rod 42 moves, it will separate 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 rebound force of the spring blocking ring 53 will be released, allowing the spring blocking ring 53 to return to its position, blocking the gas pipe 55, and making the gas collecting groove 51 in a closed state.

[0042] 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 through-connected with the outer walls of the four gas pipes 55. The left sides of the four counterweights 23 are fixedly connected with connecting plates 561. The sides of the four connecting plates 561 close to the rotating rod 21 are slidably connected to the sides of the four pneumatic telescopic rods 56 close to the fan blades 22. At this time, the movement of the extrusion ring 52 will squeeze the gas in the gas collecting groove 51, and the gas will be blocked by the spring blocking ring 53, so the gas pressure will increase. At the same time, when the counterweight 23 moves away from the rotating rod 21, it will also drive the connecting plate 561 to move, and the connecting plate 561 will drive the pneumatic telescopic rod 56 to move. When the counterweight 23 moves to the edge of the fan blade 22, the push rod 521 will push the spring blocking ring 53 to move, thereby eliminating the obstruction to the gas pipe 55, and high-pressure gas will enter the gas pipe 55.

[0043] The pushing assembly 5 also includes a blocking block 57 rotatably connected to the inner wall of the air delivery 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 .

[0044] 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 through springs. The shape of the four connecting rods 58 is Z-shaped. Among the multiple fan blades 22, a single fan blade 22 is adhered with a larger paint block. When the counterweight block 23 on the fan blade 22 is blocked by the larger paint block, at this time, the remaining counterweight blocks 23 are affected by the centrifugal force generated when the fan blade 22 rotates, causing it to move to the edge of the fan blade 22, and the raised position of the connecting plate 561 will contact the connecting rod 58, thereby pushing the connecting rod 58 to rotate.

[0045] There is no limitation on the number of the above components, and relevant technicians in the field can freely set them according to actual needs, as long as the above components are installed at the connection positions of the corresponding components.

[0046] A specific application of this embodiment is as follows: when the present invention is used, when spraying paint is carried out in the paint spraying room 1, the starting motor 12 drives the rotating rod 21 to rotate, thereby rotating the fan blades 22. The attraction generated by the rotation of the fan blades 22 will suck the exhaust gas in the paint spraying room 1 into the connecting tube 11, and enter the exhaust pipe 13 through the connecting tube 11. The exhaust gas is filtered through the filter screen 14, and the filtered exhaust gas is discharged through the exhaust pipe 13. In the process of the rotation of the fan blades 22, the fan blades 22 will generate centrifugal force extending outward, and the counterweight block 23 will be affected by the centrifugal force. The counterweight block 23 will move away from the rotating rod 21. When the counterweight block 23 moves, it will drive the sliding block 25 to move, so that the sliding block 25 squeezes the spring sliding rod 24, so that the spring sliding rod 24 accumulates rebound force. At the same time, during the continuous movement of the counterweight block 23, when the counterweight block 23 contacts the protruding position of the concave-convex plate 31, the counterweight block 23 will be squeezed and move toward the direction of the sliding frame 32, allowing the spring to return to the original position. The positioning rod 33 is squeezed and accumulates a rebound force. When the counterweight block 23 contacts the concave position of the concave-convex plate 31, the rebound force of the spring return rod 33 is released, allowing the counterweight block 23 to return to its original position. In this way, the counterweight block 23 can move laterally while moving away from the rotating rod 21, exerting forces in different directions on the paint particles on the surface of the fan blade 22, so that the paint particles attached to the surface of the fan blade 22 can be removed. When the counterweight block 23 moves to the edge of the fan blade 22, When the counterweight 23 is in contact with the concave position of the concave-convex plate 31, the side of the sliding frame 32 away from the counterweight 23 will block the spring return rod 33 to prevent the counterweight 23 from shaking when the fan blade 22 rotates. When the fan blade 22 rotates, the paint particles on its surface are self-cleaned, which effectively prevents the paint particles on the surface of the fan blade 22 from accumulating, ensuring that the surface of the fan blade 22 remains smooth, so that the exhaust gas can flow smoothly through the surface of the fan blade 22, and the exhaust gas maintains a good exhaust effect;

[0047] Secondly, when the counterweight 23 moves, it will also drive the hydraulic telescopic rod 43 to move, and the internal space of the hydraulic telescopic rod 43 will increase, so that suction will be generated inside, and the hydraulic oil in the oil storage cylinder 41 will be attracted into the hydraulic telescopic rod 43 through the oil delivery pipe 44, so that the hydraulic oil in the oil storage cylinder 41 will be reduced, and the hydraulic oil will attract the piston rod 42 to move. The movement of the piston rod 42 will compress the space in the oil storage cylinder 41, thereby promoting the movement of the hydraulic oil in the oil storage cylinder 41, so that the hydraulic oil can enter multiple oil delivery pipes 44 at the same time. The oil pipe 44 enters the hydraulic telescopic rod 43 to support the counterweight 23. By supporting the counterweight 23, multiple counterweights 23 are simultaneously located at the edge of the blade 22, which effectively prevents the center of gravity of the blade 22 from shifting when the blade 22 rotates. For example, when the blade 22 is vertically upward, the counterweight 23 may drop due to its own weight, resulting in uneven distribution of multiple counterweights 23, breaking the rotation balance of the blade 22, and shifting the center of gravity of the blade 22, thereby affecting the stability of the rotation of the blade 22.

[0048] Secondly, when the piston rod 42 moves, it will also drive the extrusion ring 52 and the push rod 521 to move. At the same time, when the piston rod 42 moves, it will separate from the push rod 54, canceling the obstruction of the spring blocking ring 53. Since the spring blocking ring 53 is in a stretched state, the resilience of the spring blocking ring 53 will be released, allowing the spring blocking ring 53 to return to its original position, blocking the gas pipe 55, and making the gas collecting groove 51 in a closed state. At this time, the movement of the extrusion ring 52 will squeeze the gas in the gas collecting groove 51, and the gas will be blocked by the spring blocking ring 53, so the gas pressure will increase. At the same time, when the counterweight block 23 is away from the rotating rod 21, it will also drive the connecting plate 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 air pipe 55, and the high-pressure gas enters the air pipe 55 and enters the air pressure telescopic rod 56 through the air pipe 55, pushing the air pressure telescopic rod 56 to move, applying an additional pushing force to the counterweight 23, effectively preventing a large paint block from adhering to the surface of a single fan blade 22. When the counterweight 23 on the fan blade 22 is blocked by the large paint block when moving and is difficult to move into place, the thrust of the counterweight 23 is increased by applying an additional thrust, making it easier to remove the large paint block.

[0049] When the paint spraying in the spray booth 1 stops, the motor 12 is stopped so that the rotating rod 21 and the fan blade 22 stop rotating. At this time, the resilience of the spring sliding rod 24 will be released, so that the counterweight block 23 returns to its position. The counterweight block 23 will return the hydraulic telescopic rod 43, and the hydraulic telescopic rod 43 will squeeze the hydraulic oil into the oil storage cylinder 41 again, so that the piston rod 42 returns to its position, so that the piston rod 42 contacts the push rod 54, and the push rod 54 and the spring blocking ring 53 are pushed to move, so that the spring blocking ring 53 is stretched, so that the air supply pipe 55 is connected with the gas collecting tank 51 again, so that the gas in the pneumatic telescopic rod 56 enters the gas collecting tank 51 again, and the pneumatic telescopic rod 56 is deflated;

[0050] Secondly, among the multiple blades 22, a single blade 22 is adhered with a larger paint block. When the counterweight 23 on the blade 22 is blocked by the larger paint block, the remaining counterweight 23 is affected by the centrifugal force generated when the blade 22 rotates, causing it to move to the edge of the blade 22. The raised position of the connecting plate 561 will contact the connecting rod 58, thereby pushing the connecting rod 58 to rotate, squeezing the spring block 581, and allowing the spring block 581 to accumulate rebound force. When the connecting rod 58 rotates, it will also drive the blocking block 57 to rotate, so that the blocking block 57 blocks the gas pipe 55. When high-pressure gas enters the gas pipe 55, it will be blocked by the blocking block 57, and the counterweight 23 blocked by the larger paint block has not yet moved into place. Therefore, the high-pressure gas will enter the gas pipe 55, thereby concentrating the gas and effectively preventing the gas from dispersing and affecting the thrust of the counterweight 23.

[0051] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A waste gas treatment device for a spray booth in a coating workshop, comprising a spray booth (1), a connecting cylinder (11) fixedly connected to the side wall of the spray booth (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), a filter screen (14) fixedly connected to the inner wall of the exhaust pipe (13), characterized in that: Also includes: A cleaning assembly (2), the cleaning assembly (2) comprising a fan blade (22), a rotating rod (21) for cleaning the surface of the fan blade (22), a counterweight (23), a spring sliding rod (24), a sliding block (25), and a reciprocating assembly (3) for strengthening 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 the fan blades (22), the counterweight block (23), the spring sliding rod (24) and the sliding block (25) is 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 counterweight blocks (23); and the inner walls of the four sliding blocks (25) are slidably connected to the outer walls of the four spring sliding rods (24).

2. The exhaust gas treatment device for a paint spraying room in a paint shop according to claim 1 is characterized in that: The reciprocating assembly (3) comprises a concave-convex plate (31) fixedly connected to the side wall of the fan blade (22); the sides of the four fan blades (22) away from the concave-convex plate (31) are fixedly connected to a sliding frame (32); the four concave-convex plates (31) are all wavy in shape; and the side walls of the four counterweights (23) are slidably connected to the side walls of the four concave-convex plates (31).

3. The exhaust gas treatment device for a paint spraying room in a paint shop according to claim 2 is characterized in that: The reciprocating assembly (3) further comprises a spring return rod (33) fixedly connected to the side of the counterweight (23) away from the concave-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); and a balancing assembly (4) is arranged on the inner wall of the rotating rod (21).

4. The exhaust gas treatment device for a paint spraying room in a paint shop according to claim 3 is characterized in that: The balancing assembly (4) comprises an oil storage cylinder (41) fixedly connected to the inner wall of the rotating rod (21), a piston rod (42) being slidably connected to the inner wall of the oil storage cylinder (41), hydraulic oil being arranged on the inner wall of the oil storage cylinder (41), four hydraulic telescopic rods (43) being fixedly connected to the inner wall of the rotating rod (21), and a pushing assembly (5) being arranged on the inner wall of the rotating rod (21).

5. The exhaust gas treatment device for a paint spraying room in a paint shop according to claim 4 is characterized in that: The balancing assembly (4) further comprises four oil delivery pipes (44) which are connected through the side wall of the oil storage cylinder (41); the outer walls of the four oil delivery pipes (44) are connected through the inner walls of the four hydraulic telescopic rods (43); and the sides of the four hydraulic telescopic rods (43) close to the fan blades (22) are slidably connected to the sides of the four counterweights (23) close to the rotating rods (21).

6. The exhaust gas treatment device for a paint spraying room in a paint shop according to claim 5 is characterized in that: The pushing assembly (5) comprises an air collecting groove (51) formed on the inner wall of the rotating rod (21); an extrusion ring (52) is slidably connected to the inner wall of the air collecting groove (51); a side wall of the extrusion 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 extrusion ring (52).

7. The exhaust gas treatment device for a paint spraying room in a paint shop according to claim 6 is characterized by: The pushing assembly (5) further comprises 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 pipes (55) are fixedly connected to the inner wall of the rotating rod (21); and the outer walls of the four gas pipes (55) are all connected to the inner wall of the gas collecting groove (51).

8. The exhaust gas treatment device for a paint spray booth in a paint shop according to claim 7 is characterized in that: The pushing assembly (5) further comprises 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) being connected through the outer walls of the four air pipes (55), the left sides of the four counterweights (23) being fixedly connected to connecting plates (561), and the sides of the four connecting plates (561) close to the rotating rod (21) being slidably connected to the sides of the four pneumatic telescopic rods (56) close to the fan blades (22).

9. The exhaust gas treatment device for a paint spraying room in a paint shop according to claim 8 is characterized by: The pushing assembly (5) further comprises a blocking block (57) rotatably connected to the inner wall of the gas delivery pipe (55); four connecting rods (58) are arranged on the outer wall of the rotating rod (21); and the side walls of the four connecting rods (58) are fixedly connected to the side walls of the four blocking blocks (57).

10. The exhaust gas treatment device for a paint spraying room in a paint shop according to claim 9, characterized in that: The pushing assembly (5) further comprises 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 four connecting rods (58) via springs; and the shape of the four connecting rods (58) is Z-shaped.

Images