Air filter detection device

Abstract

The present invention relates to the field of air filter detection technology, and specifically to an air filter detection device. The technical solution is: to provide an air filter detection device, including a protective cover, the inner cavity of the protective cover is provided with an operating table, one side of the protective cover is movably connected with a protective door, the top of the operating table is provided with a groove, and the inner cavity of the groove is provided with a detection mechanism. The beneficial effects of the present invention are: the present invention utilizes an exhaust mechanism, and the air can be evenly delivered to the air filter through the air supply unit. When the air filter is saturated, it is difficult for the air to pass through the air filter. At this time, the air pressure in the air collecting box will blow the closing plate to discharge the air, and through the setting of the dispersion plate, the air pressure above the dispersion plate is greater than the air pressure below the dispersion plate, so that the air can enter the ash guide pipe through the air blowing pipe, so that the dust in the storage box is evenly distributed in the inner cavity of the air collecting box.

Description

Technical Field

[0001] The invention relates to the technical field of air filter detection, in particular to an air filter detection device. Background Art

[0002] An air filter is a device that captures dust from a gas-solid two-phase flow through a porous filter material and purifies the gas. An air filter performance testing device is an important device used to measure and test the performance of industrial and domestic air filters, ensuring that the filter has a good filtering effect and service life in actual applications.

[0003] When the existing detection device detects the air filter, the dust-containing air is blown into the air filter. However, when the dust is added to the air cavity from one side, the dust will be blown quickly to the air filter due to the excessively fast airflow, which will cause uneven dust distribution. If the dust is unevenly distributed in the detection environment, when evaluating the filtering efficiency of the filter, the result may be inaccurate due to the local dust concentration being too high or too low.

[0004] In view of the above problems, it is found that it is difficult to avoid the above problems at the same time when using the existing detection devices on the market, and even if they can be solved, they need to be solved with the cooperation of external tools, thus failing to achieve the desired effect. Therefore, an air filter detection device is proposed. Summary of the invention

[0005] The object of the present invention is to provide an air filter detection device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: an air filter detection device, comprising a protective cover, an inner cavity of the protective cover is provided with an operating table, one side of the protective cover is movably connected with a protective door, a groove is provided on the top of the operating table, and a detection mechanism is provided in the inner cavity of the groove, and the detection mechanism is used to detect the ventilation state of the air filter;

[0007] The inner cavity of the protective cover is provided with an exhaust mechanism used in conjunction with the detection mechanism, and the exhaust mechanism includes an air delivery unit, which is arranged in the inner cavity of the protective cover and is used to deliver dusty air to the air filter;

[0008] The exhaust mechanism further comprises a dust conveying unit, which is used in conjunction with the air delivery unit and is used to evenly distribute the dust.

[0009] Preferably, the detection mechanism includes a support platform slidably connected to the inner cavity of the groove, a first sealing frame is provided on the surface of the support platform, a fixing plate is fixedly connected to the inner cavity of the support platform, a ventilation hole is opened on the top of the fixing plate, a connecting rod is fixedly connected to the inner cavity of the ventilation hole, a moving rod is slidably connected to the inner cavity of the connecting rod, a connecting block is fixedly connected to the top end of the moving rod, a sealing gasket is fixedly connected to the bottom end of the moving rod, a first spring is movablely sleeved on the surface of the moving rod, one end of the first spring is fixedly connected to the connecting rod, and the other end of the first spring is fixedly connected to the connecting block, the inner cavity of the support platform is fixedly connected to a mounting rod, a touch switch used in conjunction with the connecting block is fixedly connected to the bottom of the mounting rod, and a timer electrically connected to the touch switch is fixedly connected to one side of the protective cover.

[0010] Preferably, one side of the support platform is fixedly connected to a bellows, the inner cavity of the groove is fixedly connected to a collecting box, the inner cavity of the collecting box is filled with water, one end of the bellows passes through the collecting box and extends into the water, the inner cavity of the groove is fixedly connected to an electric telescopic rod, and the telescopic end of the electric telescopic rod is fixedly connected to the bottom of the support platform.

[0011] Preferably, the gas delivery unit includes an air collecting box fixedly connected to the inner wall of the protective cover, the inner wall of the air collecting box is fixedly connected to a dispersion plate, the bottom of the dispersion plate is fixedly connected to an air duct, the number of the air ducts is several, the top of the protective cover is fixedly connected to an air pump, the gas delivery end of the air pump passes through the protective cover and is fixedly connected to the top of the air collecting box, the surface of the air collecting box is fixedly installed with a second sealing frame by bolts, and the bottom of the second sealing frame is fixedly connected to a second sealing ring.

[0012] Preferably, air guide holes are provided on both sides of the air collecting box, the inner wall of the air guide hole is fixedly connected with a clamping rod, the inner cavity of the clamping rod is slidably connected with a sliding rod, one end of the sliding rod is fixedly connected with a closing plate, the surface of the closing plate is in contact with the inner wall of the air guide hole, the other end of the sliding rod is fixedly connected with a clamping block, the surface of the sliding rod is movably sleeved with a second spring, one end of the second spring is fixedly connected to the clamping block, the other end of the second spring is fixedly connected to the clamping rod, the surface of the clamping rod is fixedly connected with a filter cloth, the filter cloth is fixedly connected to the inner wall of the air guide hole, and the elastic coefficient of the second spring is greater than the elastic coefficient of the first spring.

[0013] Preferably, the dust conveying unit includes a storage box fixedly connected to one side of the protective cover, one side of the storage box is fixedly connected with an ash guide pipe, one end of the ash guide pipe penetrates into the inner cavity of the air collecting box, one end of the ash guide pipe is inclined, the surface of the air collecting box is fixedly connected with an air blowing pipe, one end of the air blowing pipe is fixedly connected to the surface of the ash guide pipe, the bottom of the ash guide pipe is fixedly connected with an ash discharge pipe, and the number of the ash discharge pipes is several.

[0014] Preferably, the inner cavity of the ash discharge pipe is rotatably connected to a rotating rod through a bearing, and two blades are fixedly connected to the surface of the rotating rod, one side of the two blades is in contact with the inner wall of the ash discharge pipe, and one end of the rotating rod passes through the bottom of the ash discharge pipe, and the surface of the rotating rod is fixedly connected to an air guide blade, and the number of the air guide blades is several, and an air groove is opened on the top of the air guide blade.

[0015] Preferably, the inner cavity of the ash guide pipe is rotatably connected to a rotating shaft, the surface of the rotating shaft is fixedly connected to a plurality of elastic sheets, and the inner bottom wall of the ash guide pipe is fixedly connected to an elastic vibration sheet used in conjunction with the elastic sheet.

[0016] Preferably, the first sealing frame includes a mounting frame, the mounting frame is fixedly connected to the surface of the support platform by bolts, the top of the mounting frame is fixedly connected to a pressure sensor, the top of the mounting frame is provided with a guide groove, the inner cavity of the guide groove is slidably connected to a guide rod, the top of the guide rod is fixedly connected to the support frame, and the inner wall of the support frame is fixedly connected to a first sealing ring.

[0017] Preferably, a dust concentration detector is fixedly connected to the inner cavity of the support table, a display is fixedly connected to one side of the protective cover, the pressure sensor and the dust concentration detector are both electrically connected to the display, and the air pump and the timer are both electrically connected to the touch switch.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention utilizes a detection mechanism. When the air filter is not saturated, air will enter the inner cavity of the support table through the air filter, causing the sealing gasket to move downward, thereby canceling the contact between the touch switch and the connecting block. At this time, the timer starts timing. When the air filter is saturated, it is difficult for air to pass through the air filter. At this time, the sealing gasket is reset under the action of the first spring, thereby causing the touch switch to contact the connecting block. At this time, the timer ends, thereby determining the test duration of the air filter. Before and after the air filter is saturated, the value detected by the pressure sensor can be used to determine the weight of the air filter before and after saturation, thereby determining the dust holding capacity of the air filter.

[0020] 2. The present invention utilizes an exhaust mechanism, and the air can be evenly delivered to the air filter through the air delivery unit. When the air filter is saturated, it is difficult for the air to pass through the air filter. At this time, the air pressure in the air collecting box will blow the closing plate to discharge the air. Moreover, through the setting of the dispersion plate, the air pressure above the dispersion plate is greater than the air pressure below the dispersion plate, so that the air can enter the ash guide pipe through the air blowing pipe, so that the dust in the storage box is evenly distributed in the inner cavity of the air collecting box, thereby avoiding the phenomenon of inaccurate results caused by local dust concentration being too high or too low. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the operating table and the gas collecting box of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the gas collecting box and the storage box of the present invention;

[0024] Figure 4 It is a cross-sectional schematic diagram of the ash guide pipe of the present invention;

[0025] Figure 5 This is an exploded schematic diagram of the ash discharge pipe and the air guide vane of the present invention;

[0026] Figure 6 It is an exploded schematic diagram of the gas collecting box, the second sealing frame and the second sealing ring of the present invention;

[0027] Figure 7 It is an exploded schematic diagram of the support platform, the mounting frame and the support frame of the present invention;

[0028] Figure 8 For the present invention Figure 7 A partial enlarged view of the middle A;

[0029] Fig. 9 It is an exploded schematic diagram of the installation rod and the moving rod of the present invention.

[0030] In the figure: 1. protective cover; 11. operating table; 12. protective door; 13. groove; 2. detection mechanism; 201. support platform; 202. first sealing frame; 203. fixing plate; 204. ventilation hole; 205. connecting rod; 206. moving rod; 207. connecting block; 208. sealing pad; 209. first spring; 210. mounting rod; 211. touch switch; 212. timer; 213. bellows; 214. collecting box; 215. electric telescopic rod; 216. mounting frame; 217. pressure sensor; 218. guide groove; 219. guide rod; 220. support frame; 221. first sealing ring; 3. exhaust mechanism; 31. gas transmission unit; 3101. gas collecting box; 3102, dispersion plate; 3103, air guide pipe; 3104, air pump; 3105, second sealing frame; 3106, second sealing ring; 3107, air guide hole; 3108, clamping rod; 3109, sliding rod; 3110, closing plate; 3111, clamping block; 3112, second spring; 3113, filter cloth; 32, dust conveying unit; 3201, storage box; 3202, ash guide pipe; 3203, air blowing pipe; 3204, ash discharge pipe; 3205, rotating rod; 3206, blade; 3207, air guide blade; 3208, wind trough; 3209, rotating shaft; 3210, elastic sheet; 3211, elastic vibration sheet; 3212, dust concentration detector; 3213, display. DETAILED DESCRIPTION

[0031] 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.

[0032] Example 1: Please refer to Figure 1-Figure 9 The present invention provides a technical solution: an air filter detection device, which makes corresponding improvements to the technical problems mentioned in the background technology, including a protective cover 1, an operating table 11 is arranged in the inner cavity of the protective cover 1, a protective door 12 is movably connected to one side of the protective cover 1, a groove 13 is arranged on the top of the operating table 11, and a detection mechanism 2 is arranged in the inner cavity of the groove 13, and the detection mechanism 2 is used to detect the ventilation state of the air filter;

[0033] The inner cavity of the protective cover 1 is provided with an exhaust mechanism 3 used in conjunction with the detection mechanism 2. The exhaust mechanism 3 includes an air delivery unit 31. The air delivery unit 31 is provided in the inner cavity of the protective cover 1. The air delivery unit 31 is used to deliver dusty air to the air filter.

[0034] The exhaust mechanism 3 further includes a dust conveying unit 32 , which is used in conjunction with the air delivery unit 31 , and is used to evenly distribute the dust.

[0035] The detection mechanism 2 includes a support platform 201 slidably connected to the inner cavity of the groove 13, a first sealing frame 202 is arranged on the surface of the support platform 201, a fixing plate 203 is fixedly connected to the inner cavity of the support platform 201, a ventilation hole 204 is opened on the top of the fixing plate 203, a connecting rod 205 is fixedly connected to the inner cavity of the ventilation hole 204, a moving rod 206 is slidably connected to the inner cavity of the connecting rod 205, a connecting block 207 is fixedly connected to the top end of the moving rod 206, a sealing pad 208 is fixedly connected to the bottom end of the moving rod 206, a first spring 209 is movably sleeved on the surface of the moving rod 206, one end of the first spring 209 is fixedly connected to the connecting rod 205, and the other end of the first spring 209 is fixedly connected to the connecting block 207, and the inner cavity of the support platform 201 is fixedly connected to the mounting rod 21 0, a touch switch 211 used in conjunction with the connecting block 207 is fixedly connected to the bottom of the mounting rod 210, and a timer 212 electrically connected to the touch switch 211 is fixedly connected to one side of the protective cover 1. By setting the detection mechanism 2, when the air filter is not saturated, air will enter the inner cavity of the support platform 201 through the air filter, so that the sealing gasket 208 moves downward, so that the touch switch 211 and the connecting block 207 are cancelled, and the timer 212 starts timing. When the air filter is saturated, it is difficult for air to pass through the air filter. At this time, the sealing gasket 208 is reset under the action of the first spring 209, so that the touch switch 211 is in contact with the connecting block 207, and the timer 212 ends timing, so that the air filter test duration can be judged.

[0036] A bellows 213 is fixedly connected to one side of the support platform 201, and a collecting box 214 is fixedly connected to the inner cavity of the groove 13. The inner cavity of the collecting box 214 is filled with water. One end of the bellows 213 passes through the collecting box 214 and extends into the water. An electric telescopic rod 215 is fixedly connected to the inner cavity of the groove 13. The telescopic end of the electric telescopic rod 215 is fixedly connected to the bottom of the support platform 201. By setting up the bellows 213, the collecting box 214 and the electric telescopic rod 215 for coordinated use, the air will enter the inner cavity of the bellows 213 after passing through the ventilation hole 204, and enter the water in the collecting box 214 through the bellows 213. If there is dust in the air, the dust will mix with the water, thereby avoiding the effect of external air being polluted.

[0037] The first sealing frame 202 includes a mounting frame 216, which is fixedly connected to the surface of the support platform 201 by bolts, and a pressure sensor 217 is fixedly connected to the top of the mounting frame 216. A guide groove 218 is opened on the top of the mounting frame 216, and a guide rod 219 is slidably connected to the inner cavity of the guide groove 218. The top of the guide rod 219 is fixedly connected to a support frame 220, and the inner wall of the support frame 220 is fixedly connected to a first sealing ring 221. By setting the mounting frame 216, the pressure sensor 217 and the guide groove 218 for coordinated use, when the air filter is tested, the air filter is placed on the support frame 220. At this time, the support frame 220 is affected by gravity and generates a downward weight on the guide rod 219. At this time, the pressure sensor 217 detects the weight value of the air filter. When the air filter is saturated, the weight of the air filter is detected again by the pressure sensor 217, so that the dust holding capacity of the air filter can be calculated.

[0038] The specific implementation of this embodiment is as follows: when the air filter is not saturated, air will enter the inner cavity of the support platform 201 through the air filter, so that the sealing pad 208 moves downward, so that the touch switch 211 and the connecting block 207 are no longer in contact, and the timer 212 starts timing. When the air filter is saturated, it is difficult for air to pass through the air filter. At this time, the sealing pad 208 is reset under the action of the first spring 209, so that the touch switch 211 is in contact with the connecting block 207, and the timer 212 ends at this time, so that the air filter test time can be judged. Enter the inner cavity of the bellows 213, and enter the water in the collection box 214 through the bellows 213. If the air contains dust, the dust will mix with the water, thereby avoiding the effect of external air pollution. When testing the air filter, the air filter is placed on the support frame 220. At this time, the support frame 220 is affected by gravity and produces a downward weight on the guide rod 219. At this time, the pressure sensor 217 detects the weight value of the air filter. When the air filter is saturated, the weight of the air filter is detected again by the pressure sensor 217, so that the dust holding capacity of the air filter can be calculated.

[0039] Example 2: Please refer to Figure 1-Figure 9 The present invention provides a technical solution: an air filter detection device. The present invention makes corresponding improvements to the technical problems mentioned in the background technology.

[0040] As a further limitation of the exhaust mechanism 3 of the present invention, the gas delivery unit 31 includes an air collecting box 3101 fixedly connected to the inner wall of the protective cover 1, the inner wall of the air collecting box 3101 is fixedly connected to a dispersion plate 3102, the bottom of the dispersion plate 3102 is fixedly connected to an air guide pipe 3103, the number of the air guide pipes 3103 is several, the top of the protective cover 1 is fixedly connected to an air pump 3104, the air delivery end of the air pump 3104 passes through the protective cover 1 and is fixedly connected to the top of the air collecting box 3101, the surface of the air collecting box 3101 is fixedly installed with a second sealing frame 3105 by bolts, the bottom of the second sealing frame 3105 is fixedly connected to a second sealing ring 3106, and by setting the gas delivery unit 31, during the detection , start the air pump 3104 to allow air to enter the air collecting box 3101 and pass through the dispersion plate 3102 and the air duct 3103. At this time, the air pressure above the dispersion plate 3102 is greater than the air pressure below the dispersion plate 3102, so that part of the air will enter the dust conveying unit 32. Since there are several air ducts 3103, the air can flow evenly to the air filter, wherein the first sealing frame 202 and the second sealing frame 3105 are both detachable, and the openings of the first sealing frame 202 and the second sealing frame 3105 can be set to different apertures, so that the first sealing frame 202 and the second sealing frame 3105 with different apertures can be selected according to the size of the air filter.

[0041] Air guide holes 3107 are provided on both sides of the air collecting box 3101, and the inner wall of the air guide hole 3107 is fixedly connected with a clamping rod 3108, and the inner cavity of the clamping rod 3108 is slidably connected with a sliding rod 3109, and one end of the sliding rod 3109 is fixedly connected with a closing plate 3110, and the surface of the closing plate 3110 contacts the inner wall of the air guide hole 3107, and the other end of the sliding rod 3109 is fixedly connected with a clamping block 3111, and the surface of the sliding rod 3109 is movably sleeved with a second spring 3112, and one end of the second spring 3112 is fixedly connected to the clamping block 3111, and the other end of the second spring 3112 is fixedly connected to the clamping rod 3108, and the surface of the clamping rod 3108 is fixedly connected to the clamping block 3111. A filter cloth 3113 is fixedly connected to the surface, and the filter cloth 3113 is fixedly connected to the inner wall of the air guide hole 3107. The elastic coefficient of the second spring 3112 is greater than the elastic coefficient of the first spring 209. By setting the air guide hole 3107, the clamping rod 3108, the sliding rod 3109 and the closing plate 3110 for coordinated use, when the air filter is saturated, it is difficult for air to pass through the air filter. At this time, the air continues to be transported to the inner cavity of the air collecting box 3101, and the closing plate 3110 moves outward under air pressure, so that the air guide hole 3107 can be ventilated. The filter cloth 3113 is provided to prevent dust from being discharged into the outside air, thereby reducing environmental pollution.

[0042] The specific implementation method of this embodiment is as follows: when conducting the test, start the air pump 3104 to allow the air to enter the air collecting box 3101 and pass through the dispersion plate 3102 and the air duct 3103. At this time, the air pressure above the dispersion plate 3102 is greater than the air pressure below the dispersion plate 3102, so that part of the air will enter the dust conveying unit 32. Since there are several air ducts 3103, the air can flow evenly to the air filter. When the air filter is saturated, it is difficult for the air to pass through the air filter. At this time, the air continues to be transported to the inner cavity of the air collecting box 3101. The closing plate 3110 will move outward under the air pressure, so that the air guide hole 3107 can be ventilated, and a filter cloth 3113 is provided to prevent dust from being discharged into the outside air and reduce environmental pollution.

[0043] Example 3: Please refer to Figure 1-Figure 9 The present invention provides a technical solution: an air filter detection device. The present invention makes corresponding improvements to the technical problems mentioned in the background technology.

[0044] As a further limitation of the exhaust mechanism 3 of the present invention, the dust conveying unit 32 includes a storage box 3201 fixedly connected to one side of the protective cover 1, one side of the storage box 3201 is fixedly connected to an ash guide pipe 3202, one end of the ash guide pipe 3202 passes through the inner cavity of the air collecting box 3101, one end of the ash guide pipe 3202 is inclined, and the surface of the air collecting box 3101 is fixedly connected to an air blowing pipe 3203, one end of the air blowing pipe 3203 is fixedly connected to the surface of the ash guide pipe 3202, and the bottom of the ash guide pipe 3202 is fixedly connected to the inner cavity of the air collecting box 3101. The ash discharge pipe 3204 is fixedly connected to the air box 3101, and there are several ash discharge pipes 3204. By setting the dust conveying unit 32, part of the air in the air collecting box 3101 will flow into the inner cavity of the air blowing pipe 3203, and the storage box 3201 contains dust. Under the action of the air blowing pipe 3203, the dust will enter the ash discharge pipe 3204 along the ash guide pipe 3202. The dust can be evenly distributed in the inner cavity of the air collecting box 3101 through the ash discharge pipe 3204, so that the dust can be evenly distributed in the air filter.

[0045] The inner cavity of the ash discharge pipe 3204 is rotatably connected to a rotating rod 3205 through a bearing, and two blades 3206 are fixedly connected to the surface of the rotating rod 3205. One side of the two blades 3206 contacts the inner wall of the ash discharge pipe 3204, and one end of the rotating rod 3205 penetrates to the bottom of the ash discharge pipe 3204. The surface of the rotating rod 3205 is fixedly connected to a guide blade 3207. There are several guide blades 3207, and a wind groove 3208 is opened on the top of the guide blade 3207. 3207, the wind slot 3208 and the blades 3206 are used in combination. When the air flows downward through the dispersion plate 3102, part of the air will enter the inner cavity of the wind slot 3208, thereby causing the air guide blades 3207 to rotate. The principle is consistent with the rotation of the wind mill. The rotation of the air guide blades 3207 will drive the rotating rod 3205 to rotate, thereby causing the blades 3206 to rotate in the inner cavity of the ash discharge pipe 3204, thereby preventing the ash discharge pipe 3204 from being blocked.

[0046] The inner cavity of the ash guide tube 3202 is rotatably connected to a rotating shaft 3209, and an elastic sheet 3210 is fixedly connected to the surface of the rotating shaft 3209. The number of elastic sheets 3210 is several, and the inner bottom wall of the ash guide tube 3202 is fixedly connected to an elastic vibration sheet 3211 used in conjunction with the elastic sheet 3210. By arranging the elastic sheet 3210, the rotating shaft 3209 and the elastic vibration sheet 3211 for coordinated use, the elastic sheet 3210 is driven to rotate by the airflow of the air pipe 3203. During the rotation, the elastic sheet 3210 will come into contact with the elastic vibration sheet 3211, so that the elastic vibration sheet 3211 will vibrate slightly, so that a small amount of dust enters the ash guide tube 3202, and the phenomenon of dust clogging at the entrance of the ash guide tube 3202 can be avoided.

[0047] The inner cavity of the support table 201 is fixedly connected with a dust concentration detector 3212, and one side of the protective cover 1 is fixedly connected with a display 3213. The pressure sensor 217 and the dust concentration detector 3212 are electrically connected to the display 3213, and the air pump 3104 and the timer 212 are electrically connected to the touch switch 211. By setting the pressure sensor 217, the dust concentration detector 3212 and the display 3213 for coordinated use, the pressure sensor 217, the dust concentration detector 3212 and the display 3213 are started by an external control switch, and the pressure sensor 217 and the dust concentration detector 3212 can transmit the numerical value to the display screen in real time, and the air pump 3104 and the timer 212 are electrically connected to the touch switch 211. When the connecting block 207 contacts the touch switch 211, the timing of the timer 212 and the air delivery of the air pump 3104 can be stopped.

[0048] The specific implementation of this embodiment is as follows: part of the air in the air collecting box 3101 will flow into the inner cavity of the air blowing pipe 3203, and the airflow through the air blowing pipe 3203 will drive the elastic sheet 3210 to rotate. The elastic sheet 3210 will come into contact with the elastic vibration sheet 3211 during the rotation process, so that the elastic vibration sheet 3211 will produce a slight vibration, so that a small amount of dust will enter the ash guide pipe 3202, and the phenomenon of dust clogging at the entrance of the ash guide pipe 3202 can be avoided. The dust will be blown away by the air blowing pipe 3203. Under the action of tube 3203, the air will enter the ash discharge pipe 3204 along the ash guide pipe 3202. When the air flows downward through the dispersion plate 3102, part of the air will enter the inner cavity of the wind slot 3208, thereby causing the guide blade 3207 to rotate. The principle is consistent with the rotation of the wind mill. The rotation of the guide blade 3207 will drive the rotating rod 3205 to rotate, thereby causing the blade 3206 to rotate in the inner cavity of the ash discharge pipe 3204, thereby preventing the ash discharge pipe 3204 from being blocked.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air filter detection device, comprising a protective cover (1), an inner cavity of the protective cover (1) is provided with an operating table (11), one side of the protective cover (1) is movably connected to a protective door (12), and a top of the operating table (11) is provided with a groove (13), characterized in that: The inner cavity of the groove (13) is provided with a detection mechanism (2), and the detection mechanism (2) is used to detect the ventilation state of the air filter; The inner cavity of the protective cover (1) is provided with an exhaust mechanism (3) used in conjunction with the detection mechanism (2), the exhaust mechanism (3) comprising an air delivery unit (31), the air delivery unit (31) being arranged in the inner cavity of the protective cover (1), the air delivery unit (31) being used to deliver dusty air to an air filter; The exhaust mechanism (3) further comprises a dust conveying unit (32), the dust conveying unit (32) being used in conjunction with the air delivery unit (31), the dust conveying unit (32) being used to evenly distribute dust; The detection mechanism (2) comprises a support platform (201) slidably connected to the inner cavity of the groove (13); a first sealing frame (202) is arranged on the surface of the support platform (201); a fixing plate (203) is fixedly connected to the inner cavity of the support platform (201); a ventilation hole (204) is provided on the top of the fixing plate (203); a connecting rod (205) is fixedly connected to the inner cavity of the ventilation hole (204); a moving rod (206) is slidably connected to the inner cavity of the connecting rod (205); a connecting block (207) is fixedly connected to the top end of the moving rod (206); and a connecting block (207) is fixedly connected to the bottom end of the moving rod (206). A sealing pad (208) is fixedly connected, a first spring (209) is movably sleeved on the surface of the moving rod (206), one end of the first spring (209) is fixedly connected to the connecting rod (205), and the other end of the first spring (209) is fixedly connected to the connecting block (207); a mounting rod (210) is fixedly connected to the inner cavity of the support platform (201), a touch switch (211) used in conjunction with the connecting block (207) is fixedly connected to the bottom of the mounting rod (210), and a timer (212) electrically connected to the touch switch (211) is fixedly connected to one side of the protective cover (1); The gas transmission unit (31) comprises an air collecting box (3101) fixedly connected to the inner wall of the protective cover (1); a dispersion plate (3102) is fixedly connected to the inner wall of the air collecting box (3101); an air guide pipe (3103) is fixedly connected to the bottom of the dispersion plate (3102); the number of the air guide pipes (3103) is several; an air pump (3104) is fixedly connected to the top of the protective cover (1); a gas transmission end of the air pump (3104) passes through the protective cover (1) and is fixedly connected to the top of the air collecting box (3101); a second sealing frame (3105) is fixedly installed on the surface of the air collecting box (3101) by bolts; and a second sealing ring (3106) is fixedly connected to the bottom of the second sealing frame (3105); The dust conveying unit (32) comprises a storage box (3201) fixedly connected to one side of the protective cover (1); one side of the storage box (3201) is fixedly connected to an ash guide pipe (3202); one end of the ash guide pipe (3202) penetrates into the inner cavity of the air collecting box (3101); one end of the ash guide pipe (3202) is arranged at an angle; the surface of the air collecting box (3101) is fixedly connected to an air blowing pipe (3203); one end of the air blowing pipe (3203) is fixedly connected to the surface of the ash guide pipe (3202); the bottom of the ash guide pipe (3202) is fixedly connected to an ash discharge pipe (3204); and the number of the ash discharge pipes (3204) is multiple; The first sealing frame (202) comprises a mounting frame (216), the mounting frame (216) being fixedly connected to the surface of the support platform (201) by means of bolts, the top of the mounting frame (216) being fixedly connected to a pressure sensor (217), the top of the mounting frame (216) being provided with a guide groove (218), the inner cavity of the guide groove (218) being slidably connected to a guide rod (219), the top of the guide rod (219) being fixedly connected to a support frame (220), and the inner wall of the support frame (220) being fixedly connected to a first sealing ring (221).

2. An air filter detection device according to claim 1, characterized in that: One side of the support platform (201) is fixedly connected to a bellows (213); the inner cavity of the groove (13) is fixedly connected to a collection box (214); the inner cavity of the collection box (214) is filled with water; one end of the bellows (213) passes through the collection box (214) and extends into the water; the inner cavity of the groove (13) is fixedly connected to an electric telescopic rod (215); the telescopic end of the electric telescopic rod (215) is fixedly connected to the bottom of the support platform (201).

3. An air filter detection device according to claim 1, characterized in that: Air guide holes (3107) are provided on both sides of the air collecting box (3101); a clamping rod (3108) is fixedly connected to the inner wall of the air guide hole (3107); a sliding rod (3109) is slidably connected to the inner cavity of the clamping rod (3108); one end of the sliding rod (3109) is fixedly connected to a closing plate (3110); the surface of the closing plate (3110) contacts the inner wall of the air guide hole (3107); the other end of the sliding rod (3109) is fixedly connected to a clamping block (3111); A second spring (3112) is movably sleeved on the surface of the rod (3109); one end of the second spring (3112) is fixedly connected to the clamping block (3111); the other end of the second spring (3112) is fixedly connected to the clamping rod (3108); a filter cloth (3113) is fixedly connected to the surface of the clamping rod (3108); the filter cloth (3113) is fixedly connected to the inner wall of the air guide hole (3107); and the elastic coefficient of the second spring (3112) is greater than the elastic coefficient of the first spring (209).

4. An air filter detection device according to claim 1, characterized in that: The inner cavity of the ash discharge pipe (3204) is rotatably connected to a rotating rod (3205) via a bearing; two blades (3206) are fixedly connected to the surface of the rotating rod (3205); one side of the two blades (3206) is in contact with the inner wall of the ash discharge pipe (3204); one end of the rotating rod (3205) penetrates to the bottom of the ash discharge pipe (3204); and air guide blades (3207) are fixedly connected to the surface of the rotating rod (3205); the number of the air guide blades (3207) is several, and an air groove (3208) is provided on the top of each air guide blade (3207).

5. An air filter detection device according to claim 1, characterized in that: The inner cavity of the ash guide tube (3202) is rotatably connected to a rotating shaft (3209), the surface of the rotating shaft (3209) is fixedly connected to an elastic sheet (3210), the number of the elastic sheets (3210) is several, and the inner bottom wall of the ash guide tube (3202) is fixedly connected to an elastic vibration sheet (3211) used in conjunction with the elastic sheet (3210).

6. An air filter detection device according to claim 1, characterized in that: The inner cavity of the support platform (201) is fixedly connected to a dust concentration detector (3212); one side of the protective cover (1) is fixedly connected to a display (3213); the pressure sensor (217) and the dust concentration detector (3212) are both electrically connected to the display (3213); and the air pump (3104) and the timer (212) are both electrically connected to the touch switch (211).

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