Heater air inlet prefilter

Abstract

The invention belongs to the field of air inlet prefilters, and particularly relates to a heater air inlet prefilter which comprises an air outlet pipe and an air inlet pipe, the air inlet pipe and the air outlet pipe are fixedly connected through a connecting hoop, the bottom of the connecting hoop is fixedly connected with a fixed base, a protective cover is arranged in the air outlet pipe, and the protective cover is fixedly connected with the fixed base. The protective cover and the air outlet pipe are fixedly connected through a plurality of flow guide plates, a driving motor is fixedly connected to the interior of the protective cover, an air suction disc is fixedly connected to the output end of the driving motor, a dividing disc is fixedly connected to the middle of the air outlet pipe, and a dust discharging opening communicated with the interior of the air outlet pipe is formed in the outer side of the dividing disc. The effect of removing particulate matters in air is achieved, the combustion area of the heater is protected, meanwhile, the whole filtering equipment does not hinder rapid flowing of air, and the function of supplying a large amount of air to the heater is guaranteed; the air outlet pipe and the air inlet pipe are fixed through the connecting clamp, and the equipment is connected to one side of the heater through the fixing base.

Description

Technical Field

[0001] The present invention belongs to the field of intake pre-filters, and more specifically, it is a heater intake pre-filter. Background Art

[0002] Heaters in plateau areas need to consider special environmental factors such as low air pressure and low temperature in terms of design and working principles; the cold air is inhaled by starting the heating fan wheel, and after being heated, it is blown into the space that needs to be heated.

[0003] The intake filtration of the heater is particularly important in plateau areas because the air in the plateau environment is thin and the dust content may be relatively high. Good intake filtration can not only improve the heating efficiency but also protect the internal components of the heater.

[0004] Traditional intake filters often use the method of filtering with filter elements to isolate the debris in the air outside the filter element. This method will not only reduce the intake air volume due to the blockage of the filter element, resulting in a decrease in the efficiency of the heater, but also require frequent cleaning and replacement of the filter element, leading to more post-treatment processes.

[0005] Therefore, the present invention provides a heater intake pre-filter. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A heater intake pre-filter of the present invention includes an outlet duct and an inlet duct. The inlet duct and the outlet duct are fixedly connected by a connecting clamp. A fixed base is fixedly connected to the bottom of the connecting clamp. A protective cover is arranged inside the outlet duct. The protective cover and the outlet duct are fixedly connected by a plurality of flow guide plates. A driving motor is fixedly connected inside the protective cover. The output end of the driving motor is fixedly connected with a suction disc. A dividing disc is fixedly connected to the middle of the outlet duct. A dust discharge port communicating with the inside of the outlet duct is opened outside the dividing disc; Through the settings of the deflector and the suction disc, the suction disc is driven to rotate by the driving motor, and the air inlet end of the heater is directly butted with the air outlet pipe. The heater will also suck air by itself during operation. At the same time, the suction disc will also generate suction on the air inlet pipe when rotating. Thus, under the action of the two sets of suction forces, the outside air is sucked into the air inlet pipe. The sucked air will enter the inside of the suction disc and then be thrown outwards from the edge of the suction disc. Then the air enters the air outlet pipe, and the air will move in a spiral shape under the guidance of the deflector, so that the particulate matter in the air can be thrown outwards. The particulate matter and part of the air will be discharged outwards from the dust discharge port of the dividing disc, and the cleaned air will be discharged to the heater from the end of the air outlet pipe for the heater to use; through this setting, not only the effect of removing particulate matter in the air is achieved, protecting the combustion area of the heater, but also the entire filtering device will not hinder the rapid flow of air, ensuring the function of supplying a large amount of air to the heater; the air outlet pipe and the air inlet pipe are fixed by connecting clamps, and the device is connected to one side of the heater through the fixed base.

[0008] Preferably, a plurality of the deflectors are arranged in an arc shape, and a plurality of the deflectors are arranged in an annular and equidistant manner. The dividing disc is fixedly connected to the protective cover, and an air flow hole is formed in the middle of the dividing disc. A plurality of deflectors arranged in an arc shape and annularly and equidistantly can make the passing air move in a spiral shape, so that the particulate matter in the air can be effectively thrown out while not affecting the rapid flow of air.

[0009] Preferably, a blocking cover is fixedly connected to the end of the air inlet pipe, a screen is fixedly connected to the end of the air inlet pipe, a controller is installed inside the blocking cover, and a docking pipe is fixedly connected to the middle of the air outlet end of the air outlet pipe. The blocking cover can disperse the suction force and suck the air into the air inlet pipe from all around the blocking cover, which can prevent the problem that the outside air is directly sucked by the suction force without any obstruction, causing large-volume foreign objects to directly enter the air inlet pipe. The controller is used to control various electrical appliances in the filter. The docking pipe is docked with the heater and is arranged in the middle, so that the air flowing in a spiral shape will finally move to the middle and then be discharged to the heater, and the particulate matter in the air can be smoothly thrown out.

[0010] Preferably, an air flow channel is formed inside the suction disc. An air inlet pipe is fixedly connected to one end of the suction disc away from the drive motor. A plurality of exhaust holes are formed on the outer side of the suction disc. The suction disc is arranged in a flat shape. A plurality of baffle plates are installed inside the suction disc. As the suction disc rotates, during the rotation process of the plurality of baffle plates, a suction force same as that of the turbine will be generated; the fluid will also rotate under the drive of the baffle plates. Due to the centrifugal force, the fluid will be thrown towards the outer edge of the suction disc. In the central area of the suction disc, since the fluid is thrown towards the outer edge, a relatively low-pressure area will be formed. This low-pressure area generates "suction force" to suck the surrounding air into the center of the turbine; finally, the air will be discharged outwards through the exhaust holes, and the particulate matter in the air will be thrown outwards when passing through the guide plate.

[0011] Preferably, the plurality of baffle plates are arranged in an arc shape. The plurality of baffle plates are arranged in an annular and equidistant manner. The number of baffle plates is an even number. The plurality of baffle plates are alternately arranged in two groups. Two transmission chains for controlling the two groups of baffle plates are arranged inside the suction disc. The baffle plates are rotatably connected to the outer edge of the suction disc. The arc-shaped baffle plates can increase the effect on the air during rotation. The two groups of baffle plates are controlled by different transmission chains. When all the baffle plates in one group rotate, the end of itself can be lapped on the surface of the baffle plates in the other group, so that half of the flow space will be closed and half of the exhaust holes will no longer exhaust air; through this setting, during the long-term operation of the equipment, the two groups of baffle plates can work alternately to reduce the permanent damage caused by the over-high temperature or excessive fatigue of the baffle plates due to long-term rotation.

[0012] Preferably, two lifting plates capable of spraying a protective layer are slidably connected in the air flow channel. The two lifting plates are respectively located on two different surfaces. The lifting plates are located between two adjacent baffle plates. When the equipment is not operating, the lifting plates can be controlled to protrude outwards into the air flow channel. Then, quick-drying paint will be sprayed outwards from the outside of the lifting plates. The paint will adhere to the air flow channel and quickly dry and harden. In this way, the area where the air circulates can be effectively protected, and the particulate matter will rub against the paint coating without damaging the suction disc; at the same time, during the long-term operation of the equipment, when half of the baffle plates rotate and are closed, the lifting plates can also be started to protrude outwards and paint can be sprayed outwards, so that the worn coating can be supplemented during the working process to further protect the suction disc.

[0013] Preferably, spraying ports are formed on both sides, the top and the ends of the lifting plates. The two lifting plates are arranged in a staggered manner. The inner ring of the exhaust hole is protruded. When the lifting plates are lifted upwards, the spraying ports on both sides, the top and the ends will all spray out paint. The ends of the lifting plates will only spray towards the end away from the exhaust holes. Since the suction disc is rotating, under the centrifugal force, the paint adhering to the air flow channel will spread outwards and finally adhere to the entire air flow channel.

[0014] Preferably, a fixed valve is fixedly connected to the end of the baffle plate. Two groups of docking holes adapted to the fixed valve are opened on the upper and lower inner walls of the air flow groove. After the baffle plate rotates to a specified position, the fixed valve is opened to protrude the fixing bolt outwards and insert it into the docking hole, so as to ensure the fixing stability of the baffle plate.

[0015] Preferably, a linkage rod is fixedly connected to one end of the baffle plate close to the suction disc. A driven gear is fixedly connected to the outer side of the linkage rod. The linkage rod and the driven gear are both located inside the suction disc. Two electric gears are installed inside the suction disc. The two electric gears are connected to the transmission chain in a transmission manner. The two transmission chains are arranged in parallel. The two electric gears drive the transmission chain to operate, and then drive the corresponding driven gear and the linkage rod to rotate, so as to drive a group of baffle plates to rotate. Therefore, two groups of baffle plates can be controlled to rotate through the two transmission chains.

[0016] Preferably, a threaded hole is opened in the middle of the inside of the suction disc. An adding tank is threadedly connected in the threaded hole. A liquid pump is installed inside the suction disc. The blocking cover and the screen can be removed to replace the adding tank. The liquid pump will transfer the paint in the adding tank to multiple lifting plates. The spraying openings of the multiple lifting plates will adaptively open only when they are pushed outwards. At the same time, a spring that can pull the lifting plates back into place is installed at the bottom of the liquid pump and the lifting plates. During the ventilation process, under the action of the wind pressure, the lifting plates will not rise upwards. Therefore, only the lifting plates in the enclosed area can normally rise and spray paint.

[0017] The beneficial effects of the present invention are as follows: 1. For the air inlet pre-filter of the heater described in the present invention, through the setting of the guide plate and the suction disc, the suction disc is driven to rotate by the drive motor, and the air inlet end of the heater is directly docked with the air outlet pipe. When the heater is working, it will also self-aspirate. At the same time, when the suction disc rotates, it will also generate suction on the air inlet pipe. Therefore, under the action of the two groups of suction forces, the external air is sucked into the air inlet pipe. The sucked air will enter the inside of the suction disc and then be thrown outwards from the edge of the suction disc. Then the air enters the air outlet pipe. The air will be guided by the guide plate and move in a spiral shape, so that the particulate matter in the air can be thrown outwards. The particulate matter and part of the air will be discharged outwards from the dust discharge port of the dividing disc, and the cleaned air will be discharged from the end of the air outlet pipe into the heater for the heater to use; through this setting, not only the effect of removing particulate matter in the air is achieved, protecting the combustion area of the heater, but also the entire filtering device will not prevent the rapid flow of air, ensuring the function of supplying a large amount of air to the heater; the air outlet pipe and the air inlet pipe are fixed by a connecting clamp, and the device is connected to one side of the heater through a fixed base.

[0018] 2. In the air intake pre-filter of the heater according to the present invention, the blocking cover can disperse the suction force, and air is sucked into the air inlet pipe from the periphery of the blocking cover, which can prevent the direct suction of external air without any obstruction, so as to avoid the problem that large-volume foreign objects directly enter the air inlet pipe. The controller is used to control various electrical appliances in the filter, dock with the heater through the docking pipe, and is arranged in the middle, so that the spirally flowing air will finally move to the middle and then be discharged into the heater, and the particles in the air can be smoothly thrown out. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 is the first perspective three-dimensional view of the present invention; Figure 2 is the second perspective three-dimensional view of the present invention; Figure 3 is the three-dimensional view of the air suction disc of the present invention; Figure 4 is the three-dimensional view of the guide plate and the air outlet pipe of the present invention; Figure 5 is the three-dimensional view of the guide plate and the dividing disc of the present invention; Figure 6 is the three-dimensional view of the air suction disc of the present invention; Figure 7 is the cross-sectional view of the air suction disc of the present invention; Figure 8 is the three-dimensional view of the air flow groove and the lifting plate of the present invention; Figure 9 is the three-dimensional view of the baffle plate of the present invention; In the figure: 1, air outlet pipe; 2, air inlet pipe; 3, connecting clamp; 4, fixed base; 5, blocking cover; 6, controller; 7, docking pipe; 8, dust discharge port; 9, dividing disc; 11, screen; 12, air suction disc; 13, protective cover; 14, guide plate; 15, drive motor; 16, air flow hole; 17, air inlet pipe; 18, exhaust hole; 19, baffle plate; 20, lifting plate; 21, adding tank; 22, air flow groove; 23, fixed valve; 24, docking hole; 25, transmission chain; 26, driven gear; 27, connecting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0022] Such as Figures 1 to 9As shown in the figure, an intake air pre-filter of a heater according to an embodiment of the present invention includes an air outlet pipe 1 and an air inlet pipe 2. The air inlet pipe 1 and the air outlet pipe 2 are fixedly connected by a connecting clamp 3. A fixed base 4 is fixedly connected to the bottom of the connecting clamp 3. A protective cover 13 is arranged inside the air outlet pipe 1. The protective cover 13 and the air outlet pipe 1 are fixedly connected by a plurality of guide plates 14. A driving motor 15 is fixedly connected inside the protective cover 13. The output end of the driving motor 15 is fixedly connected with a suction disc 12. A dividing disc 9 is fixedly connected to the middle of the air outlet pipe 1. A dust discharge port 8 communicating with the inside of the air outlet pipe 1 is arranged on the outside of the dividing disc 9; Through the arrangement of the guide plates 14 and the suction disc 12, the driving motor 15 drives the suction disc 12 to rotate, directly docking the air inlet end of the heater with the air outlet pipe 1. The heater will also self-aspirate when working. At the same time, the suction disc 12 will also generate suction on the air inlet pipe 2 when rotating. Thus, under the action of the two groups of suction forces, the outside air is sucked into the air inlet pipe 2. The sucked air will enter the inside of the suction disc 12 and then be thrown out from the edge of the suction disc 12. Then the air enters the air outlet pipe 1. The air will be guided by the guide plates 14 to move in a spiral shape, so that the particulate matter in the air can be thrown out. The particulate matter and part of the air will be discharged out through the dust discharge port 8 of the dividing disc 9, and the cleaned air will be discharged from the end of the air outlet pipe 1 to the heater for the heater to use; through this kind of setting, not only the effect of removing particulate matter in the air is achieved, protecting the combustion area of the heater, but also the whole filtering device will not prevent the rapid flow of air, ensuring the function of supplying a large amount of air to the heater; the air outlet pipe 1 and the air inlet pipe 2 are fixed by the connecting clamp 3, and the device is connected to one side of the heater through the fixed base 4.

[0023] A plurality of the guide plates 14 are arranged in an arc shape, and a plurality of the guide plates 14 are arranged in an annular equidistant manner. The dividing disc 9 is fixedly connected with the protective cover 13. An air flow hole 16 is arranged in the middle of the dividing disc 9; During operation, a plurality of arc-shaped and annular equidistant arranged guide plates 14 can make the passing air move in a spiral shape, so that the particulate matter in the air can be effectively thrown out without affecting the rapid flow of air.

[0024] A blocking cover 5 is fixedly connected to the end of the air inlet pipe 2. A screen 11 is fixedly connected to the end of the air inlet pipe 2. A controller 6 is installed inside the blocking cover 5. A docking pipe 7 is fixedly connected to the middle of the air outlet end of the air outlet pipe 1; During operation, the blocking cover 5 can disperse the suction force, suck air into the air inlet pipe 2 from the periphery of the blocking cover 5, and prevent the direct suction of external air by the suction force without any obstruction, thus avoiding the problem of large-volume foreign objects directly entering the air inlet pipe 2. The controller 6 is used to control various electrical appliances in the filter, dock the connecting pipe 7 with the heater, and is arranged in the middle, so that the spirally flowing air will finally move to the middle before being discharged into the heater, and the particles in the air can be smoothly thrown out.

[0025] An air flow groove 22 is formed inside the suction disc 12. One end of the suction disc 12 away from the drive motor 15 is fixedly connected with an air inlet pipe 17. A plurality of exhaust holes 18 are formed on the outer side of the suction disc 12. The suction disc 12 is arranged in a flat shape, and a plurality of baffle plates 19 are installed inside the suction disc 12. During operation, with the rotation of the suction disc 12, when the plurality of baffle plates 19 rotate, they will generate the same suction force as the turbine; the fluid will also rotate under the drive of the baffle plates 19. Due to the centrifugal force, the fluid will be thrown towards the outer edge of the suction disc 12. In the central area of the suction disc 12, since the fluid is thrown towards the outer edge, a relatively low-pressure area will be formed. This low-pressure area generates "suction force" to suck the surrounding air into the center of the turbine; finally, the air will be discharged outwards through the exhaust holes 18, and the particulate matter in the air will be thrown outwards when passing through the guide plate 14.

[0026] The plurality of baffle plates 19 are arranged in an arc shape, the plurality of baffle plates 19 are arranged in an annular and equidistant manner, the number of the baffle plates 19 is an even number, the plurality of baffle plates 19 are alternately arranged into two groups, two transmission chains 25 for controlling the two groups of baffle plates 19 are arranged inside the suction disc 12, and the baffle plates 19 are rotatably connected with the outer edge of the suction disc 12. During operation, the arc-shaped baffle plates 19 can increase the effect on the air during rotation. The two groups of baffle plates 19 are controlled by different transmission chains 25. When all the baffle plates 19 in one group rotate, their ends can be lapped on the surface of the baffle plates 19 in the other group, thus closing half of the flow space and making half of the exhaust holes 18 stop exhausting; through this setting, during the long-term operation of the equipment, the two groups of baffle plates 19 can work alternately to reduce the permanent damage caused by the overheating or excessive fatigue of the baffle plates 19 due to long-term rotation.

[0027] Two lifting plates 20 capable of spraying a protective layer are slidably connected in the air flow groove 22. The two lifting plates 20 are located on two different surfaces respectively, and the lifting plates 20 are located between two adjacent baffle plates 19. During operation, when the device is not working, the lifting plate 20 can be controlled to protrude outward into the air flow groove 22. After that, quick-drying paint will be sprayed outward from the outside of the lifting plate 20, and the paint will adhere to the air flow groove 22 and quickly dry and harden. In this way, the area where air circulates can be effectively protected, allowing particulate matter to rub against the paint coating without damaging the suction disc 12. At the same time, during the long-term operation of the device, when half of the baffle plates 19 rotate and close, the lifting plate 20 can also be activated to protrude outward and spray paint, so as to replenish the worn coating during the working process and further protect the suction disc 12.

[0028] Spraying ports are provided on both sides, the top and the ends of the lifting plate 20. The two groups of lifting plates 20 are arranged in a staggered manner, and the inner ring of the exhaust hole 18 is convexly arranged; During operation, when the lifting plate 20 is lifted upward, the spraying ports on both sides, the top and the ends will all spray paint outward. The end of the lifting plate 20 will only spray towards the end away from the exhaust hole 18. Due to the rotation of the suction disc 12, under the centrifugal force, the paint adhering to the air flow groove 22 will spread outward and finally all adhere to all the air flow grooves 22.

[0029] A fixed valve 23 is fixedly connected to the end of the baffle plate 19, and two groups of docking holes 24 adapted to the fixed valve 23 are provided on the upper and lower inner walls of the air flow groove 22; During operation, when the baffle plate 19 rotates to a specified position, the fixed valve 23 is opened to protrude the fixing bolt and insert it into the docking hole 24, so as to ensure the fixing stability of the baffle plate 19.

[0030] A linkage rod 27 is fixedly connected to the end of the baffle plate 19 close to the suction disc 12. A driven gear 26 is fixedly connected to the outside of the linkage rod 27. The linkage rod 27 and the driven gear 26 are both located inside the suction disc 12. Two electric gears are installed inside the suction disc 12, and the two electric gears are connected to the transmission chain 25 in a transmission manner. The two transmission chains 25 are arranged in parallel; During operation, the two electric gears drive the transmission chain 25 to operate, and then drive the corresponding driven gear 26 and the linkage rod 27 to rotate, so as to drive a group of baffle plates 19 to rotate, and thus the two groups of baffle plates 19 can be controlled to rotate through the two transmission chains 25.

[0031] A threaded hole is provided in the middle of the inside of the suction disc 12, and an adding tank 21 is threadedly connected to the threaded hole. A liquid pump is installed inside the suction disc 12; During operation, the blocking cover 5 and the screen 11 can be removed to replace and add the tank 21. The liquid pump will transfer the paint in the adding tank 21 to multiple lifting plates 20. The spraying openings of the multiple lifting plates 20 will adaptively open only when they are pushed outwards. At the same time, when the liquid pump is not working, a spring capable of pulling the lifting plate 20 back to its original position is installed at the bottom of the lifting plate 20. During the ventilation process, under the action of the wind pressure, the lifting plate 20 will not rise upwards. Therefore, only the lifting plates 20 in the enclosed area can normally rise and spray paint.

[0032] During operation, through the settings of the deflector 14 and the suction disc 12, the driving motor 15 drives the suction disc 12 to rotate, directly connecting the intake end of the heater to the outlet pipe 1. The heater will also self-aspirate during operation. At the same time, when the suction disc 12 rotates, it will also generate suction on the intake pipe 2. Thus, under the action of the two sets of suction forces, the outside air is sucked into the intake pipe 2. The sucked air will enter the inside of the suction disc 12 and then be thrown outwards from the edge of the suction disc 12. Then the air enters the outlet pipe 1, and the air will be guided by the deflector 14 to move in a spiral shape, so that the particulate matter in the air can be thrown outwards. The particulate matter and part of the air will be discharged outwards from the dust discharge port 8 of the dividing disc 9, and the cleaned air will be discharged from the end of the outlet pipe 1 to the heater for the heater to use; through this setting, not only the effect of removing particulate matter in the air is achieved, protecting the combustion area of the heater, but also the entire filtering device will not interfere with the rapid flow of air, ensuring the function of supplying a large amount of air to the heater; the outlet pipe 1 and the intake pipe 2 are fixed by the connecting clamp 3, and the device is connected to one side of the heater through the fixed base 4; The multiple arc-shaped and annularly equidistantly arranged deflectors 14 can make the passing air move in a spiral shape, so that the particulate matter in the air can be effectively thrown out without affecting the rapid flow of air; The blocking cover 5 can disperse the suction force, sucking the air into the intake pipe 2 from the four sides of the blocking cover 5, which can prevent the problem that the outside air is directly sucked by the suction force without any obstruction, allowing large-volume foreign objects to directly enter the intake pipe 2. The controller 6 is used to control various electrical appliances in the filter. The docking pipe 7 is docked with the heater and is arranged in the middle, so that the spiral-flowing air will finally move to the middle before being discharged to the heater, and the particulate matter in the air can be smoothly thrown out; As the suction disc 12 rotates, during the rotation of the multiple baffle plates 19, a suction force effect identical to that of the turbine will be generated; the fluid will also rotate under the drive of the baffle plates 19. Due to the centrifugal force, the fluid will be thrown towards the outer edge of the suction disc 12. In the central region of the suction disc 12, since the fluid is thrown towards the outer edge, a relatively low-pressure area will be formed. This low-pressure area generates a "suction force" that sucks the surrounding air into the center of the turbine; finally, the air will be discharged outward from the exhaust holes 18, and when passing through the guide plate 14, the particulate matter in the air will be thrown outward; The arc-shaped baffle plates 19 can increase the effect on the air during rotation. The two groups of baffle plates 19 are controlled by different drive chains 25. When all the baffle plates 19 in one group rotate, their ends can be lapped on the surface of the baffle plates 19 in the other group, thus closing half of the flow space and causing half of the exhaust holes 18 to stop exhausting; through this setting, during the long-term operation of the equipment, the two groups of baffle plates 19 can work alternately to reduce the permanent damage caused by the overheating or excessive fatigue of the baffle plates 19 due to long-term rotation; When the equipment is not working, the lifting plate 20 can be controlled to protrude outward into the air flow groove 22. After that, a quick-drying coating will be sprayed outward on the outside of the lifting plate 20. The coating will adhere to the air flow groove 22 and quickly dry and harden, effectively protecting the air circulation area and allowing the particulate matter to rub against the coating layer without damaging the suction disc 12; at the same time, during the long-term operation of the equipment, when half of the baffle plates 19 rotate and close, the lifting plate 20 can also be activated to protrude outward and spray the coating, so as to replenish the worn coating during the working process and further protect the suction disc 12; When the lifting plate 20 is lifted upward, the spraying ports on both sides, the top and the ends will spray the coating outward. The end of the lifting plate 20 will only spray towards the end away from the exhaust holes 18. Due to the rotation of the suction disc 12, under the centrifugal force, the coating adhering to the air flow groove 22 will spread outward and finally adhere to all the air flow grooves 22; When the baffle plate 19 rotates to the specified position, the fixed valve 23 is opened to protrude the fixing bolt and insert it into the docking hole 24, thus ensuring the fixing stability of the baffle plate 19; Two electric gears drive the drive chain 25 to operate, thereby driving the corresponding driven gears 26 and the linkage rods 27 to rotate, and then driving a group of baffle plates 19 to rotate, so that the two groups of baffle plates 19 can be controlled to rotate through the two drive chains 25; The blocking cover 5 and the screen 11 can be removed to replace the additive tank 21. The liquid pump will transfer the paint in the additive tank 21 to multiple lifting plates 20. The spraying openings of the multiple lifting plates 20 will adaptively open only when they are pushed outwards. At the same time, when the liquid pump is not working, a spring is installed at the bottom of the lifting plate 20 to pull the lifting plate 20 back into place. During the ventilation process, under the action of the wind pressure, the lifting plate 20 will not rise upwards. Therefore, only the lifting plates 20 in the enclosed area can rise normally and spray paint.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A heater air intake prefilter, characterized in that: The utility model comprises an air outlet pipe and an air inlet pipe, the air inlet pipe and the air outlet pipe are fixedly connected by a connecting clamp, the bottom of the connecting clamp is fixedly connected to a fixed base, a protective cover is arranged inside the air outlet pipe, the protective cover and the air outlet pipe are fixedly connected by a plurality of guide plates, a driving motor is fixedly connected inside the protective cover, an air suction plate is fixedly connected to the output end of the driving motor, a dividing plate is fixedly connected to the middle part of the air outlet pipe, and a dust exhaust port connected to the inside of the air outlet pipe is provided on the outer side of the dividing plate.

2. A heater air intake prefilter according to claim 1, characterized in that: The plurality of guide plates are arranged in an arc shape, and are arranged in an annular shape with equal distances. The partition plate is fixedly connected to the protective cover, and an air flow hole is opened in the middle of the partition plate.

3. A heater air intake prefilter according to claim 2, characterized in that: The end of the air inlet pipe is fixedly connected with a blocking cover, the end of the air inlet pipe is fixedly connected with a screen, a controller is installed inside the blocking cover, and a docking pipe is fixedly connected to the middle of the air outlet end of the air outlet pipe.

4. A heater air intake prefilter according to claim 3, characterized in that: An air flow groove is provided inside the air suction plate, an air inlet pipe is fixedly connected to one end of the air suction plate away from the driving motor, a plurality of exhaust holes are provided on the outer side of the air suction plate, the air suction plate is arranged in a flat shape, and a plurality of baffles are installed inside the air suction plate.

5. A heater air intake prefilter according to claim 4, characterized in that: The multiple baffles are arranged in an arc shape, the multiple baffles are arranged equidistantly in a ring shape, the number of the baffles is an even number, the multiple baffles are alternately arranged in two groups, two transmission chains for controlling the two groups of baffles are arranged inside the air suction plate, and the baffles are rotatably connected to the outer edge of the air suction plate.

6. A heater air intake prefilter according to claim 5, characterized in that: Two groups of lifting plates capable of spraying a protective layer are slidably connected in the air flow groove, the two groups of lifting plates are respectively located on two different surfaces, and the lifting plates are located between two adjacent baffles.

7. A heater air intake prefilter according to claim 6, characterized in that: Spraying ports are provided on both sides, the top and the ends of the lifting plate, the two groups of lifting plates are arranged in a staggered manner, and the inner circle of the exhaust hole is convex.

8. A heater air intake prefilter according to claim 7, characterized in that: A fixed valve is fixedly connected to the end of the baffle plate, and two groups of docking holes adapted to the fixed valve are provided on the upper and lower inner walls of the air flow groove.

9. A heater air intake prefilter according to claim 8, characterized in that: A connecting rod is fixedly connected to one end of the baffle plate close to the air suction plate, a driven gear is fixedly connected to the outer side of the connecting rod, the connecting rod and the driven gear are both located inside the air suction plate, two electric gears are installed inside the air suction plate, the two electric gears are connected to the transmission chain, and the two transmission chains are arranged in parallel.

10. A heater air intake prefilter according to claim 9, characterized in that: A threaded hole is provided in the middle of the interior of the air suction disc, an adding tank is threadedly connected in the threaded hole, and a liquid pump is installed inside the air suction disc.

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