High-negative-pressure dust remover convenient for dust removal

Abstract

The invention relates to the technical field of dust removers, and discloses a high negative pressure dust remover convenient for deashing, which comprises a machine body, an exhaust port and an air inlet which are communicated with each other are formed in the machine body, a temporary storage cavity located below the air inlet is formed in the machine body, and a cylindrical cavity with the top communicated with the air inlet and the bottom communicated with the temporary storage cavity is formed in the machine body. A supporting shaft coaxial with the cylindrical cavity is fixedly mounted in the machine body, and a filter cartridge rotationally arranged on the supporting shaft in a sleeving manner is inserted into the cylindrical cavity; one port of the filter cartridge is fixedly provided with a driven gear for blocking the port of the filter cartridge, and the other port of the filter cartridge corresponds to the exhaust port. According to the invention, under the condition that only one centrifugal machine is still used for providing negative pressure power, only one group of filter cartridges needs to be arranged in the air flowing direction, so that the group of filter cartridges can filter air and can also realize self-deashing of the filtered air when the air is filtered every time, the utilization rate of the filter cartridges is improved, and the waste of the filter cartridges is avoided.

Description

Technical Field

[0001] The invention relates to the field of dust cleaning of dust collector technology, and in particular to a high negative pressure dust collector that is easy to clean. Background Art

[0002] High negative pressure dust collectors are widely used in steel, electricity, food, metallurgy, chemical and other industrial fields. Their main function is to separate dust particles from dust-containing air, discharge clean air and reduce air pollution.

[0003] The high negative pressure dust collector is equipped with a filter cartridge for filtering air. The high negative pressure makes the air containing dust particles contact the outer surface of the filter cartridge. The dust particles are filtered and adhere to the outer surface of the filter cartridge. After the dust particles are filtered out, the clean air passes through the upper layer of the filter cartridge, passes through the hollow cavity of the filter cartridge, and rushes out from the port of the filter cartridge, and finally discharged from the exhaust chamber. However, since the dust particles adhere to the outer surface of the filter cartridge, when used for a long time, the dust particles will block the upper layer of the filter cartridge, thereby affecting the air flow rate. Therefore, it is necessary to clean the dust particles on the outer surface of the filter cartridge from time to time. This operation is called cleaning.

[0004] In the prior art, the operation of cleaning the filter cartridge is usually to add a vibration mechanism to make the filter cartridge vibrate, thereby removing the dust particles on the filter cartridge, or to add a set of negative pressure mechanism or high pressure mechanism to make the inner cavity of the filter cartridge generate an outward airflow, and use the airflow to remove the dust particles on the filter cartridge. However, whether adding a vibration mechanism or a high negative pressure mechanism will increase the energy consumption of the equipment and increase the manufacturing cost. For this reason, technical improvements have also been made to the cleaning of the filter cartridge in the prior art.

[0005] For example, the Chinese patent with application number CN201521065202.0 and name “Automatic Negative Pressure Cleaning Type Filter Cartridge Dust Collector” realizes the alternating opening and closing of the two ports of the filter cartridge by setting a combination valve with a driving device, and the two ports of the filter cartridge correspond to the exhaust chamber and the cleaning air chamber respectively. When one port of the filter cartridge is connected to the exhaust chamber, the other port is disconnected from the cleaning air chamber. Conversely, there are multiple filter cartridges and they are arranged along the direction of gas flow. When the outside of the filter cartridge used to filter the air is covered with dust and needs to be cleaned, the combination valve is driven by the driving device to disconnect one port of the filter cartridge from the exhaust chamber and connect the other port to the cleaning air chamber. At the same time, any other filter cartridge can be set in reverse to filter the air. In this way, only one centrifugal fan is needed to provide negative pressure power. When one of the filter cartridges is filtering the air, the air filtered by other filter cartridges can be cleaned. This can effectively reduce the energy consumption and cost of the equipment.

[0006] The design of the automatic negative pressure cleaning filter cartridge dust collector provided by the above patent is relatively ingenious, so that only one centrifugal fan is needed to provide negative pressure power, so that when one filter cartridge is filtering air, the air filtered by other filter cartridges can be cleaned, thereby realizing the cyclic filtering and cleaning of the filter cartridges. However, the applicant has found through continuous actual operation and improvement that it has at least the following deficiencies: In order to realize the cleaning of the filter cartridge while filtering the air, it is necessary to set up multiple groups of filter cartridges in the direction of gas flow. Through the alternating cooperation of "you filter and he cleans, he cleans and you filter" between multiple groups of filter cartridges, it is possible to realize that only one centrifugal fan is needed to provide negative pressure power to enable the filter cartridge to filter the air and clean the filter cartridge at the same time. It can be understood that: a certain group of filter cartridges can only filter the air or clean the filter cartridges. In order to ensure that there is a filter cartridge to filter the air every time, it is necessary to set up multiple groups of filter cartridges in the direction of gas flow for use together. However, this will inevitably lead to a significant reduction in the utilization rate of each group of filter cartridges, resulting in a waste of the number of filter cartridges. Therefore, how to set up only one group of filter cartridges in the direction of gas flow while still using only one centrifuge to provide negative pressure power, so that each time the air is filtered, the filter cartridge can filter the air and clean the filtered air itself to improve the utilization rate of the filter cartridge and avoid the waste of the filter cartridge is a technical problem that needs to be solved urgently. Summary of the invention

[0007] The purpose of the present invention is to provide a high negative pressure dust collector which is easy to clean, so as to solve the above-mentioned deficiencies in the prior art.

[0008] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a high negative pressure dust collector that is easy to clean, comprising a body, the body is provided with an exhaust port and an air inlet that are connected to each other, a temporary storage chamber located below the air inlet is formed in the body, a cylindrical chamber is provided in the body, the top of which is connected to the air inlet and the bottom of which is connected to the temporary storage chamber, a support shaft coaxial with the cylindrical chamber is fixedly installed in the body, and a filter cartridge rotatably sleeved on the support shaft is inserted in the cylindrical chamber; A slave gear for blocking the filter cartridge port is fixedly installed at one end of the filter cartridge, and the other end corresponds to the exhaust port. The high-pressure air entering from the air inlet is filtered by the top of the outer peripheral surface of the filter cartridge, and the dust particles in the air adhere to the top of the outer peripheral surface of the filter cartridge. A driving member for driving the filter cartridge to rotate in the cylindrical cavity is provided in the body, so that the top of the outer peripheral surface of the filter cartridge can be switched to the bottom and correspond to the temporary storage cavity; A ventilation duct connecting the exhaust port and the temporary storage chamber is also provided in the machine body. A filter assembly for covering the port of the ventilation duct is provided in the temporary storage chamber. A portion of the high-pressure air filtered by the filter cartridge flows to the exhaust port through the port of the filter cartridge for discharge, and a portion of the high-pressure air strikes the bottom of the inner cavity of the filter cartridge downward to blow the dust particles adhering to the bottom of the outer peripheral surface of the filter cartridge into the temporary storage chamber. Thereafter, the air is filtered by the filter assembly and flows to the exhaust port through the ventilation duct for discharge.

[0009] The above-mentioned high-negative-pressure dust collector that is easy to clean, the driving part includes a self-locking servo motor installed on the machine body and a driving gear coaxially connected to the output shaft of the self-locking servo motor, the driving gear is meshed with the driven gear, and the self-locking servo motor drives the driving gear to rotate, thereby driving the driven gear and the filter cartridge to rotate.

[0010] The above-mentioned high-negative-pressure dust collector which is easy to clean, the port of the filter cartridge corresponding to the exhaust port is provided with a baffle, the baffle can block the port of the filter cartridge, the outer circumferential surface of the support shaft is provided with a thread, the center of the baffle is provided with a screw hole which is screwed to the thread, a plurality of plug rods which are circumferentially arranged and slidably plugged with the baffle are fixedly mounted on the filter cartridge, and the driving member drives the filter cartridge to rotate, and the baffle is driven to rotate by itself to make the baffle move axially, thereby adjusting the resistance of air passing through the port of the filter cartridge.

[0011] The high negative pressure dust collector which is easy to clean has a reinforcing plate fixedly mounted on both ends of the inner cavity of the filter cartridge, the two reinforcing plates are rotatably plugged with the support shaft, and the plug rod is fixedly mounted on the reinforcing plate close to the baffle.

[0012] The above-mentioned high-negative-pressure dust collector which is easy to clean has two symmetrically arranged limit blocks fixedly mounted on the support shaft, and a plurality of balls are rotatably embedded in the opposite surfaces of the two limit blocks, wherein the balls on one of the limit blocks abut against the side of the gear, and the balls on the other limit block abut against the side of the reinforcing plate, so that the filter cartridge will not move axially when rotating.

[0013] In the above-mentioned high negative pressure dust collector which is easy to clean, the distance between the outer peripheral surface of the filter cartridge and the inner wall of the cylindrical cavity is between 0-9 mm.

[0014] The above-mentioned high-negative-pressure dust collector which is easy to clean, the filter assembly is elastically rotatably installed on the inner wall of the temporary storage chamber, and in the initial state, the filter assembly is elastically pressed and fitted against the inner wall of the temporary storage chamber, and a transmission member is arranged between the baffle and the filter assembly, and in the process of the driving member driving the baffle to move away from the filter cartridge, it can drive the transmission member to first push the filter assembly to elastically rotate, and when the filter assembly rotates to the extreme state, the filter assembly is disengaged from the transmission member and impacts toward the inner wall of the temporary storage chamber under the action of the elastic rotation force so as to remove the dust particles adhered to the filter assembly.

[0015] The above-mentioned high-negative-pressure dust collector which is easy to clean, the transmission part includes an arc rod elastically rotatably installed in the body and a sliding plate elastically slidably inserted on the filter assembly, one end of the arc rod elastically abuts against the side of the baffle, and the other end extends into the temporary storage chamber, and an abutment ball abutting and cooperating with the sliding plate is fixedly installed on the arc rod located in the temporary storage chamber, and the baffle moves The process of pushing the arc rod to elastically rotate makes the abutment ball continue to approach and push the sliding plate to drive the filter assembly to elastically rotate, when the filter assembly rotates to the extreme state, the abutment ball pushes the sliding plate to slide toward the inside of the filter assembly so that the sliding plate and the abutment ball are staggered.

[0016] The high negative pressure dust collector which is easy to clean has two cylindrical cavities and two filter cartridges which are plugged in one to one, the two cylindrical cavities are arranged side by side and spaced apart, the two filter cartridges are provided with baffles and driven gears, and the driving member drives the two filter cartridges to rotate at the same time.

[0017] The above-mentioned high-negative-pressure dust collector that is easy to clean has two transmission parts and corresponds one-to-one to the two filter cartridges. The filter assembly is located between the two arc rods on the two transmission parts. The number of sliding plates elastically slidably inserted on the filter assembly is two and corresponds one-to-one to the two abutment balls on the two arc rods.

[0018] Beneficial effects: 1. In the above technical solution, the present invention sets the filter cartridge in a form that can be driven and rotated by a driving member, so that the top and bottom of the outer peripheral surface of the filter cartridge can be switched with each other, and each time filtering is performed, the top of the outer peripheral surface of the filter cartridge is used for filtering. Therefore, when a large number of dust particles are adhered to the top of the outer peripheral surface of the filter cartridge, the top of the outer peripheral surface of the filter cartridge can be switched to the bottom through the driving member. At this time, the dust particles are located at the bottom of the outer peripheral surface of the filter cartridge, and the top of the outer peripheral surface of the filter cartridge becomes clean to filter the air next time; at the same time, by improving the internal structure of the body, the filtered high-pressure air has two discharge channels after entering the inner cavity of the filter cartridge, one of which can pass through The entire filter cartridge is passed through so as to generate an impact force on the bottom of the inner cavity of the filter cartridge. Under the action of the impact force, the dust particles adhering to the bottom of the outer peripheral surface of the filter cartridge can be removed and fall into the temporary storage chamber to be collected. The high-pressure air that enters the temporary storage chamber is then filtered by the filter assembly and flows into the exhaust port for discharge. Therefore, when the top and bottom positions of the outer peripheral surface of the filter cartridge are repeatedly switched, it can not only ensure that the filter cartridge has a clean outer peripheral surface top to filter the air each time, but also can use clean high-pressure air to continuously clean the dust particles adhering to the filter cartridge, without the need to set multiple groups of filter cartridges in the direction of gas flow, and only one centrifuge is needed to increase the negative pressure power. Therefore, the present invention only needs to set a group of filter cartridges in the direction of gas flow while still using only one centrifuge to provide negative pressure power, so that each time the air is filtered, the group of filter cartridges can not only filter the air but also clean the filtered air itself to improve the utilization rate of the filter cartridge, avoid waste of filter cartridges, and effectively solve the shortcomings of the prior art. 2. Furthermore, the present invention can not only switch the position between the top and the bottom of the outer peripheral surface of the filter cartridge by driving the driving member, but also control the distance between the baffle and the filter cartridge port, thereby adjusting the resistance encountered by air when passing through the filter cartridge port. The closer the baffle is to the filter cartridge port, the greater the force with which the clean high-pressure air impacts the bottom of the inner cavity of the filter cartridge, and the more obvious the dust cleaning effect is. When there are many dust particles adhering to the filter cartridge, the distance between the baffle and the filter cartridge port can be adjusted closer, thereby effectively ensuring that the dust particles on the filter cartridge are removed. When there are not many dust particles adhering to the filter cartridge, the distance between the baffle and the filter cartridge port can be increased. While ensuring that the clean high-pressure air has a certain impact force on the dust particles adhering to the filter cartridge, the air flow rate can be effectively increased to prevent the filter cartridge from being deformed by the impact of high-pressure air for a long time. It can be seen that the present invention provides a baffle so that the driving member can not only drive the filter cartridge to rotate so as to switch the position between the top and the bottom of the outer peripheral surface of the filter cartridge, but also drive the baffle to move axially so as to adjust the resistance encountered by air when passing through the filter cartridge port, so that the present invention takes into account both the dust cleaning effect and the prevention of deformation of the filter cartridge, produces unexpected technical effects, and also saves a set of driving devices specifically for controlling the axial movement of the baffle; 3. Furthermore, the present invention sets the filter assembly in an elastically rotating connection mode, and sets a transmission member between the baffle and the filter assembly, so that when the driving member drives the baffle to move axially, the baffle has an unexpected technical effect: the baffle can drive the transmission member to make the filter assembly elastically rotate and then hit the inner wall of the temporary storage chamber, thereby producing a beneficial effect of cleaning the dust particles adhered to the filter assembly, and it is very convenient, and there is no need to set up other special cleaning devices for cleaning the filter assembly, which greatly improves the utilization rate of the driving member and the baffle, so that the high negative pressure dust collector has fewer structures and lower manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 A schematic diagram of the structure of a high negative pressure dust collector that is convenient for dust cleaning provided by an embodiment of the present invention; Figure 2 A schematic structural diagram of the first perspective of the interior of a high negative pressure dust collector that is convenient for dust cleaning provided by an embodiment of the present invention; Figure 3 The embodiment of the present invention provides Figure 2 A schematic diagram of the enlarged structure of part A; Figure 4 A schematic structural diagram of the second perspective of the interior of a high negative pressure dust collector that is convenient for dust cleaning provided by an embodiment of the present invention; Figure 5 The embodiment of the present invention provides Figure 4 A schematic diagram of the enlarged structure of part B in FIG. Figure 6 A schematic diagram of the internal structure of a high negative pressure dust collector provided by an embodiment of the present invention, which facilitates dust cleaning when the hollow boss is removed; Figure 7 A schematic diagram of the internal structure of a high negative pressure dust collector for facilitating dust cleaning when the hollow boss and the filter cartridge are removed provided in an embodiment of the present invention; Figure 8 The embodiment of the present invention provides Figure 7 Schematic diagram of the enlarged structure of part C; Fig. 9 A schematic cross-sectional view of the baffle provided in an embodiment of the present invention blocking the port of the filter cartridge; Fig.10 The embodiment of the present invention provides Fig. 9 Schematic diagram of the enlarged structure of the D part; Fig.11The embodiment of the present invention provides Fig. 9 Schematic diagram of the enlarged structure of part E in FIG. Fig.12 The embodiment of the present invention provides Fig. 9 Schematic diagram of the enlarged structure of part F; Fig.13 A schematic diagram of the structure of the embodiment of the present invention when the components in the body are pulled out; Fig.14 A schematic diagram of the structure of a filter assembly and two transmission components provided in an embodiment of the present invention; Fig.15 A schematic diagram of the structure when the gear and the baffle are disassembled from the support shaft provided in an embodiment of the present invention; Fig.16 The embodiment of the present invention provides Fig.15 A structural diagram from another perspective; Fig.17 A schematic diagram of the structure of the filter cartridge provided in an embodiment of the present invention when it is disassembled from the support shaft.

[0021] Description of reference numerals: 1. Machine body; 101. Exhaust port; 102. Side plate; 103. Hollow boss; 1031. Air inlet; 104. Triangular plate; 105. Ventilation duct; 106. Temporary storage chamber; 107. Ash discharge hole; 108. Cylindrical chamber; 1081. Upper opening; 1082. Lower opening; 109. Arc hole; 2. Collection bucket; 3. Support shaft; 301. Thread; 4. Self-locking servo motor; 5. Driving gear; 6. Slave gear; 7. Limit block; 701, ball bearing; 702, locking bolt; 8, reinforcement plate; 9, baffle; 901, screw hole; 10, plug rod; 11, arc rod; 1101, circular protrusion; 1102, abutment ball; 12, return spring; 13, upper limit rod; 14, lower limit plate; 15, filter assembly; 1501, filter screen; 1502, frame plate; 1503, frame pad; 1504, rotating shaft; 16, filter cartridge; 17, sliding plate. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] like Figure 1-17As shown, a high negative pressure dust collector that is easy to clean dust provided by an embodiment of the present invention includes a body 1, an exhaust port 101 and an air inlet 1031 that are connected to each other are provided on the body 1, a temporary storage chamber 106 located below the air inlet 1031 is formed in the body 1, a cylindrical chamber 108 is provided in the body 1, the top of which is connected to the air inlet 1031 and the bottom of which is connected to the temporary storage chamber 106, a support shaft 3 coaxial with the cylindrical chamber 108 is fixedly installed in the body 1, and a filter cartridge 16 rotatably sleeved on the support shaft 3 is inserted in the cylindrical chamber 108; One end of the filter cartridge 16 is fixedly mounted with a slave gear 6 for blocking the port of the filter cartridge 16, and the other end corresponds to the exhaust port 101. The high-pressure air entering from the air inlet 1031 is filtered by the top of the outer peripheral surface of the filter cartridge 16, and the dust particles in the air adhere to the top of the outer peripheral surface of the filter cartridge 16. A driving member for driving the filter cartridge 16 to rotate in the cylindrical cavity 108 is provided in the body 1, so that the top of the outer peripheral surface of the filter cartridge 16 can be switched to the bottom and correspond to the temporary storage cavity 106; A ventilation duct 105 connecting the exhaust port 101 with the temporary storage chamber 106 is also provided in the machine body 1. A filter assembly 15 for covering the port of the ventilation duct 105 is provided in the temporary storage chamber 106. A portion of the high-pressure air filtered by the filter cartridge 16 flows to the exhaust port 101 through the port of the filter cartridge 16 for discharge, and a portion of the high-pressure air strikes the bottom of the inner cavity of the filter cartridge 16 downward to blow the dust particles adhering to the bottom of the outer peripheral surface of the filter cartridge 16 into the temporary storage chamber 106. After that, the air is filtered by the filter assembly 15 and flows to the exhaust port 101 through the ventilation duct 105 for discharge.

[0024] The high negative pressure dust collector provided in this embodiment is easy to clean and is used to filter air containing dust particles to separate the air from the dust particles. The words related to directions and positions in this embodiment are relative to the drawings. Specifically, a hollow boss 103 is fixedly installed on the top of the body 1, and an air inlet 1031 is opened on the hollow boss 103. The air inlet 1031 is used for air containing dust particles to enter the body 1, and after being filtered by the filter cartridge 16, it is discharged to the outside through the exhaust port 101. The power of air flow comes from an air compressor, a centrifuge or other equipment that can generate high negative pressure, which is a prior art and will not be repeated. The cylindrical cavity 108 provided in the body 1 is used to accommodate the filter cartridge 16. An upper opening 1081 is provided at the top of the cylindrical cavity 108 to connect the cylindrical cavity 108 with the air inlet 1031. A lower opening 1082 is provided at the bottom of the cylindrical cavity 108 to connect the cylindrical cavity 108 with the temporary storage cavity 106. Based on the settings of the upper opening 1081 and the lower opening 1082, when the filter cartridge 16 is inserted into the cylindrical cavity 108, the top and bottom of the outer peripheral surface of the filter cartridge 16 are exposed, and the top of the outer peripheral surface of the filter cartridge 16 corresponds to the air inlet 1031. When air containing dust particles enters the body 1 from the air inlet 1031, it will contact the top of the outer peripheral surface of the filter cartridge 16, so that the air is filtered by the filter cartridge 16, and the filtered dust particles adhere to the top of the outer peripheral surface of the filter cartridge 16, and the clean air enters the inner cavity of the filter cartridge 16. At the same time, the bottom of the outer peripheral surface of the filter cartridge 16 and the temporary storage cavity 106 are connected. Correspondingly, the filter cartridge 16 has two ports, one of which is blocked by the gear 6 and cannot circulate air, and the other port corresponds to and is connected to the exhaust port 101. More importantly, a ventilation duct 105 is also provided in the body 1 to connect the temporary storage chamber 106 with the exhaust port 101, thereby forming two passages connected to the exhaust port 101. When clean high-pressure air enters the inner cavity of the filter cartridge 16, a part of the air flows into the exhaust port 101 through the port of the filter cartridge 16 for discharge, and another part of the air strikes the bottom of the inner cavity of the filter cartridge 16 downward and penetrates the entire filter cartridge 16 before entering the temporary storage chamber 106, and then enters the exhaust port 101 through the ventilation duct 105 for discharge. The filter assembly 15 arranged in the temporary storage chamber 106 can filter the air entering the temporary storage chamber 106 to prevent dust particles from entering the exhaust port 101 through the ventilation duct 105 for discharge.

[0025] More importantly, a driving member for driving the filter cartridge 16 to rotate is provided in the body 1, and the filter cartridge 16 is rotatably arranged on the support shaft 3, the support shaft 3 passes through the cylindrical cavity 108 and is fixedly connected to the body 1, the filter cartridge 16, the support shaft 3 and the cylindrical cavity 108 are coaxial, and the filter cartridge 16 can be driven to rotate around the axis of the support shaft 3 under the driving action of the driving member, thereby changing the angle of the filter cartridge 16 in the cylindrical cavity 108, and the rotation angle of the filter cartridge 16 is an integer multiple of 180°, so that when the driving member drives the filter cartridge 16 to rotate once, the top and bottom positions of the outer peripheral surface of the filter cartridge 16 can be switched, and each time the top part of the outer peripheral surface of the filter cartridge 16 plays a filtering role, and each time the bottom part of the outer peripheral surface of the filter cartridge 16 is cleaned.

[0026] Based on the above structural setting, its working principle is: first, the filter cartridge 16 is rotated an integer of 180° by the driving member, at which time the top of the outer peripheral surface of the filter cartridge 16 is switched to the bottom, and then the dust particles adhering to the top of the outer peripheral surface of the filter cartridge 16 are also transferred to the bottom of the filter cartridge 16 following the rotation of the filter cartridge 16, and the bottom of the outer peripheral surface of the filter cartridge 16 is switched to the top for the next filtering work. At this time, the top of the outer peripheral surface of the filter cartridge 16 is in a clean state, and the bottom of the outer peripheral surface of the filter cartridge 16 is in a state of adhering dust particles. Then the driving member stops working, and based on the self-locking performance of the driving member, the filter cartridge 16 will not rotate during filtering, and then the high-pressure air containing dust particles passes through the air inlet 103 When entering, the high-pressure air contacts the top of the outer peripheral surface of the filter cartridge 16, so that the dust particles are filtered and continuously adhere to the top of the outer peripheral surface of the filter cartridge 16. The clean high-pressure air formed after filtering enters the inner cavity of the filter cartridge 16. Since there are two passages leading to the exhaust port 101, a part of the clean high-pressure air flows into the exhaust port 101 through the port of the filter cartridge 16 for discharge, and the other part impacts the bottom of the inner cavity of the filter cartridge 16. Under the impact of the high-pressure air, the dust particles adhering to the bottom of the outer peripheral surface of the filter cartridge 16 are removed and fall into the temporary storage chamber 106. Then, the high-pressure air entering the temporary storage chamber 106 flows into the exhaust port 101 for discharge after being filtered by the filter assembly 15. When filtering next time, the driving member will again rotate the temporary storage chamber 106 forward or reversely by an integer multiple of 180°, and switch the top and bottom of the outer peripheral surface of the filter cartridge 16, so that the dust particles adhered to the filter cartridge 16 can be cleaned with clean high-pressure air during the next filtering, so that the filter cartridge 16 can achieve self-cleaning while filtering. There is no need to set multiple groups of filter cartridges 16 to cooperate with each other in the direction of gas flow, only one group of filter cartridges 16 is needed, thereby reducing the number of filter cartridges used, greatly improving the utilization rate of the filter cartridges and avoiding waste.

[0027] It can be seen that the present invention sets the filter cartridge 16 in a form that can be driven to rotate by the driving member, so that the top and bottom of the outer peripheral surface of the filter cartridge 16 can be switched with each other, and each time filtering is performed, the top of the outer peripheral surface of the filter cartridge 16 is used for filtering. Therefore, when a large number of dust particles are adhered to the top of the outer peripheral surface of the filter cartridge 16, the top of the outer peripheral surface of the filter cartridge 16 can be switched to the bottom through the driving member. At this time, the dust particles are located at the bottom of the outer peripheral surface of the filter cartridge 16, and the top of the outer peripheral surface of the filter cartridge 16 becomes clean to filter the air next time; at the same time, by improving the internal structure of the body 1, the filtered high-pressure air has two discharge channels after entering the inner cavity of the filter cartridge 16, one of which can pass through the entire filter cartridge 16. Thus, an impact force can be generated on the bottom of the inner cavity of the filter cartridge 16. Under the action of the impact force, the dust particles adhering to the bottom of the outer peripheral surface of the filter cartridge 16 can be removed and fall into the temporary storage chamber 106 for collection. After that, the high-pressure air entering the temporary storage chamber 106 is filtered by the filter assembly 15 and then flows into the exhaust port 101 for discharge. Therefore, when the top and bottom positions of the outer peripheral surface of the filter cartridge 16 are repeatedly switched, it can not only ensure that the filter cartridge 16 has a clean outer peripheral surface top to filter the air each time, but also can use clean high-pressure air to continuously clean the dust particles adhering to the filter cartridge 16, without the need to set multiple groups of filter cartridges 16 in the direction of gas flow, and only one centrifuge is needed to increase the negative pressure power. Therefore, the present invention only needs to set a group of filter cartridges in the direction of gas flow while still using only one centrifuge to provide negative pressure power, so that each time the air is filtered, the group of filter cartridges can not only filter the air but also clean the filtered air itself to improve the utilization rate of the filter cartridge, avoid the waste of the filter cartridge, and effectively solve the shortcomings of the prior art.

[0028] In this embodiment, the driving member includes a self-locking servo motor 4 mounted on the body 1 and a driving gear 5 coaxially connected to the output shaft of the self-locking servo motor 4. The driving gear 5 is meshed with the slave gear 6. The self-locking servo motor 4 drives the driving gear 5 to rotate, thereby driving the slave gear 6 and the filter cartridge 16 to rotate. The self-locking servo motor 4 is fixedly mounted in the body 1 by bolts. The self-locking function of the self-locking servo motor 4 is a prior art and will not be described in detail. The self-locking servo motor 4 can rotate forward and reverse.

[0029] Furthermore, a baffle 9 is provided at the port of the filter cartridge 16 corresponding to the exhaust port 101, and the baffle 9 can block the port of the filter cartridge 16. A thread 301 is provided on the outer circumferential surface of the support shaft 3, and a screw hole 901 screwed to the thread 301 is provided at the center of the baffle 9. A plurality of plug rods 10 arranged circumferentially and slidably plugged with the baffle 9 are fixedly mounted on the filter cartridge 16. In the process of the driving member driving the filter cartridge 16 to rotate, the baffle 9 is driven to rotate so that the baffle 9 moves axially and thereby adjusts the resistance of air passing through the port of the filter cartridge 16. Specifically, the position of the baffle 9 in the axial direction of the support shaft 3 determines the size of the resistance when the air flows out from the port of the filter cartridge 16. The closer the baffle 9 is to the filter cartridge 16, the greater the resistance when the air flows out from the port of the filter cartridge 16, and vice versa. The baffle 9 plays a role in adjusting the size of the resistance encountered by the air when passing through the port of the filter cartridge 16. Multiple plug rods 10 are arranged circumferentially around its axis and slidably plugged with the baffle 9. Through the fixed connection between the plug rods 10 and the port of the filter cartridge 16, when the filter cartridge 16 rotates, it can drive the multiple plug rods 10 to rotate synchronously, and the multiple plug rods 10 then drive the baffle 9 to rotate synchronously. Based on the screw connection between the screw hole 901 and the thread 301, the baffle 9 can move along the axial direction of the support shaft 3 when rotating, thereby changing the distance between the baffle 9 and the port of the filter cartridge 16. When the distance is zero, the baffle 9 blocks the port of the filter cartridge 16, and all the high-pressure air entering the inner cavity of the filter cartridge 16 will be used to impact the bottom of the inner cavity of the filter cartridge 16.

[0030] The present invention can not only switch the position between the top and the bottom of the outer peripheral surface of the filter cartridge 16 by driving the driving member, but also control the distance between the baffle 9 and the port of the filter cartridge 16, thereby adjusting the resistance encountered by air when passing through the port of the filter cartridge 16. When the baffle 9 is closer to the port of the filter cartridge 16, the force with which the clean high-pressure air impacts the bottom of the inner cavity of the filter cartridge 16 is greater, and thus the dust cleaning effect is more obvious. When there are many dust particles adhering to the filter cartridge 16, the distance between the baffle 9 and the port of the filter cartridge 16 can be adjusted closer, so as to effectively ensure that the dust particles on the filter cartridge 16 are removed. When there are not many dust particles adhering to the filter cartridge 16, the distance between the baffle 9 and the port of the filter cartridge 16 can be increased. While ensuring that the clean high-pressure air has a certain impact force on the dust particles adhering to the filter cartridge 16, the air flow rate can be effectively increased to prevent the filter cartridge 16 from being deformed by the impact of the high-pressure air for a long time. It can be seen that the present invention, by providing the baffle 9, enables the driving member to not only drive the filter cartridge 16 to rotate, thereby switching the position between the top and the bottom of the outer peripheral surface of the filter cartridge 16, but also drive the baffle 9 to move axially, thereby adjusting the resistance encountered by air when passing through the port of the filter cartridge 16. This allows the present invention to strike a balance between the cleaning effect and preventing the filter cartridge 16 from deforming, produces an unexpected technical effect, and also eliminates a set of driving devices specifically for controlling the axial movement of the baffle 9.

[0031] In this embodiment, a reinforcing plate 8 is fixedly installed at both ends of the inner cavity of the filter cartridge 16. The two reinforcing plates 8 are rotatably plugged with the support shaft 3. The plug rod 10 is fixedly installed on the reinforcing plate 8 close to the baffle 9. The slave gear 6 is fixed and sealed to another reinforcing plate 8. The two reinforcing plates 8 are located in the inner cavity of the filter cartridge 16 and can support the filter cartridge 16. When the slave gear 6 is driven to rotate by the active gear 5, the slave gear 6 first drives the reinforcing plate 8 to rotate, and the reinforcing plate 8 then drives the filter cartridge 16 to rotate, thereby effectively preventing the filter cartridge 16 from deforming when being driven to rotate.

[0032] Furthermore, two symmetrically arranged limit blocks 7 are fixedly mounted on the support shaft 3, and a plurality of balls 701 are rotatably embedded in the opposite surfaces of the two limit blocks 7, wherein the balls 701 on one limit block 7 abut against the side of the slave gear 6, and the balls 701 on the other limit block 7 abut against the side of the reinforcing plate 8, so that the filter cartridge 16 will not move axially when rotating. Specifically, the two limit blocks 7 are used to limit the filter cartridge 16, so that the filter cartridge 16 can only rotate but not move axially, and the arrangement of the balls 701 can effectively reduce the friction force on the filter cartridge 16 when rotating. The limit block 7 also includes a locking bolt 702 that is threadedly connected, and the end of the locking bolt 702 is pressed and abutted against the support shaft 3. The locking bolt 702 is threadedly connected to the limit block 7 and pressed against the support shaft 3, so that the limit block 7 can be fixedly installed on the support shaft 3 and the limit block 7 can be easily disassembled to facilitate the installation of the filter cartridge 16. A socket that is threadedly connected with the locking bolt 702 can also be opened on the support shaft 3, so as to effectively increase the firmness of the limit block 7.

[0033] In this embodiment, the distance between the outer circumference of the filter cartridge 16 and the inner wall of the cylindrical cavity 108 is between 0-1 mm, so that the filter cartridge 16 will not contact the inner wall of the cylindrical cavity 108 during the rotation process, and the air will not flow out from the inner wall of the filter cartridge 16 and the cylindrical cavity 108 in large quantities. However, even if there is air flowing out from the inner wall of the filter cartridge 16 and the cylindrical cavity 108, it will flow into the temporary storage cavity 106 and then be filtered by the filter assembly 15, and the phenomenon that the air is discharged from the exhaust port 101 without being filtered will not occur. The advantages of the filter cartridge 16 not contacting the inner wall of the cylindrical cavity 108 during the rotation process are: first, it avoids the wear of the filter cartridge 16; second, the dust particles that are filtered out and not adhered to the outer circumference of the filter cartridge 16 can fall from the inner wall of the filter cartridge 16 and the cylindrical cavity 108 to the temporary storage cavity 106 during the rotation process of the filter cartridge 16 or when the filter cartridge 16 is not rotating, so as to prevent the dust particles from accumulating on the top of the filter cartridge 16.

[0034] In this embodiment, since the filter assembly 15 also plays a filtering role, a large amount of dust particles will adhere to the filter assembly 15 during long-term use. If it is not cleaned, it will cause difficulty in air flow. How to improve the convenience of cleaning the filter assembly 15 is also one of the directions of improvement of the present invention. The filter assembly 15 is elastically rotatably installed on the inner wall of the temporary storage chamber 106. The elastic rotation force of the filter assembly 15 is directed toward the outer side of the temporary storage chamber 106, so that the filter assembly 15 and the inner wall of the temporary storage chamber 106 are elastically pressed and fit in the initial state to ensure that the air flowing out of the temporary storage chamber 106 can be filtered by the filter assembly 15. A transmission member is arranged between the baffle 9 and the filter assembly 15. In the process of the driving member driving the baffle 9 to move away from the filter cartridge 16, the transmission member can be driven to first push the filter assembly 15 to rotate elastically. When the filter assembly 15 rotates to the limit state, the filter assembly 15 is separated from the transmission member and hits the inner wall of the temporary storage chamber 106 under the action of the elastic rotation force to remove the dust particles adhered to the filter assembly 15. Specifically, in the process of the baffle 9 axially moving away from the filter cartridge 16, the transmission member cannot drive the filter assembly 15 to rotate elastically within the set specific distance. At this time, the filter assembly 15 is always in contact with the temporary storage chamber 106, so that the filter assembly 15 always plays a filtering role. When the distance moved by the baffle 9 is greater than the set specific distance, the baffle 9 can drive the transmission member to push the filter assembly 15 to rotate elastically toward the inside of the temporary storage chamber 106. When the filter assembly 15 rotates to the limit state, the transmission force between the transmission member and the filter assembly 15 disappears, so that the elastic force on the filter assembly 15 is released, so that the filter assembly 15 quickly rotates toward the inner wall of the temporary storage chamber 106 and hits the temporary storage chamber 106. During the rotation process, the dust particles adhering to the filter assembly 15 are separated from the filter assembly 15 under the blowing action of the wind force and the vibration action of the impact force, so as to achieve the cleaning of the filter assembly 15.

[0035] It can be seen that the present invention sets the filter assembly 15 in an elastically rotating connection mode and sets a transmission member between the baffle 9 and the filter assembly 15, so that when the driving member drives the baffle 9 to move axially, the baffle 9 has an unexpected technical effect: the baffle 9 can drive the transmission member to make the filter assembly 15 elastically rotate and then hit the inner wall of the temporary storage chamber 106, thereby producing a beneficial effect of cleaning the dust particles adhered to the filter assembly 15, and it is very convenient, and there is no need to set up other special cleaning devices for cleaning the filter assembly 15, which greatly improves the utilization rate of the driving member and the baffle 9, so that the high negative pressure dust collector has fewer structures and lower manufacturing costs.

[0036] In this embodiment, the transmission member includes an arc rod 11 elastically rotatably installed in the body 1 and a sliding plate 17 elastically slidably inserted on the filter assembly 15. One end of the arc rod 11 elastically abuts against the side of the baffle 9 and the other end extends into the temporary storage chamber 106. An abutment ball 1102 abutting against the sliding plate 17 is fixedly installed on the arc rod 11 located in the temporary storage chamber 106. During the movement of the baffle 9, the arc rod 11 is pushed to rotate elastically so that the abutment ball 1102 continues to approach and push the sliding plate 17 to drive the filter assembly 15 to rotate elastically. When the filter assembly 15 rotates to the extreme state, the abutment ball 1102 pushes the sliding plate 17 to slide toward the inside of the filter assembly 15 so that the sliding plate 17 and the abutment ball 1102 are staggered. Specifically, the filter assembly 15 includes a filter screen 1501, a frame plate 1502, a frame pad 1503, and a rotating shaft 1504. The filter screen 1501 is fixedly mounted on the side of the frame plate 1502 away from the inner wall of the temporary storage chamber 106 and covers the frame opening on the frame plate 1502. The frame pad 1503 is fixedly mounted on the side of the frame plate 1502 close to the inner wall of the temporary storage chamber 106 and is used to fit with the inner wall of the temporary storage chamber 106, so as to seal the port of the ventilation duct 105 and buffer the filter assembly 15 from impacting the temporary storage chamber 106. Function, 1054 is fixedly installed at one end of the frame plate 1502, two piers are fixedly installed on the inner wall of the temporary storage chamber 106, the frame plate 1502 is located between the two piers, and the two ends of the rotating shaft 1504 are rotated and plugged in the two piers in a one-to-one manner, a torsion spring (not shown in the figure) is installed between the rotating shaft 1504 and the pier, the torsion spring is fixedly connected to the rotating shaft 1504, and the end of the torsion spring is clamped with the pier, and the torsion force of the torsion spring is used to realize the elastic rotation of the frame plate 1502, thereby realizing the elastic rotation of the filter assembly 15. The sliding plate 17 is elastically slidably plugged into the side of the frame plate 1502, specifically, the side of the frame plate 1502 is provided with a sliding hole (not shown in the figure) for the sliding plate 17 to slide into, and a compression spring (not shown in the figure) is fixedly connected between the sliding hole and the sliding plate 17, and the elastic force of the compression spring is used to realize the elastic sliding of the sliding plate 17. In the initial state, there is no contact between the abutment ball 1102 and the sliding plate 17, so that when the baffle 9 moves within a set specific range and pushes the arc rod 11 to rotate, the abutment ball 1102 will not contact the sliding plate 17 and will not cause the filter assembly 15 to rotate. Within this range, the baffle 9 can stably adjust the resistance encountered by air when passing through the port of the filter cartridge 16 and the filter assembly 15 will not lose its filtering effect.When the movement range of the baffle 9 exceeds the set specific range, the baffle 9 pushes the arc rod 11 to continue to rotate so that the abutment ball 1102 abuts against the sliding plate 17 and pushes the sliding plate 17 to drive the filter assembly 15 to synchronously rotate elastically toward the inside of the temporary storage chamber 106. At this time, the torsion spring continuously stores energy, and the sliding plate 17 continuously slides toward the inside of the frame plate 1502. When the energy storage of the torsion spring reaches a certain level, the filter assembly 15 rotates to the limit state, and then the abutment ball 1102 further pushes the sliding plate 17 to slide toward the frame plate 1502 until the sliding plate 17 and the abutment ball 1102 are offset. Then the elastic force of the torsion spring is released and drives the filter assembly 15 to rotate toward the inner wall of the temporary storage chamber 106 so that the filter assembly 15 hits the inner wall of the temporary storage chamber 106.

[0037] Among them, an arc hole 109 concentric with the arc rod 11 is opened inside the body 1, and the arc rod 11 passes through the arc hole 109. A lower limit plate 14 plugged with the arc rod 11 is fixedly installed in the body 1, and an upper limit rod 13 is fixedly installed on the arc rod 11. A reset spring 12 is sleeved on the arc rod 11, and the reset spring 12 is located between the upper limit rod 13 and the lower limit plate 14. When the baffle 9 moves in a direction away from the filter cartridge 16 to push the arc rod 11 to rotate, the arc rod 11 drives the upper limit rod 13 to rotate synchronously toward the lower limit plate 14, so that the upper limit rod 13 continuously compresses the reset spring 12 to make the reset spring 12 stores energy, and after the filter assembly 15 hits the temporary storage chamber 106, the driving member drives the baffle 9 to move towards the filter cartridge 16. At this time, the elastic force of the reset spring 12 is gradually released, and drives the upper limit rod 13 and the arc rod 11 to rotate toward the baffle 9. The elastic force of the reset spring 12 is greater than the sliding resistance of the sliding plate 17, so that the arc rod 11 drives the abutment ball 1102 to squeeze the sliding plate 17 toward the inside of the frame plate 1502 to slide elastically during the rotation toward the baffle 9, so that the abutment ball 1102 passes over the sliding plate 17, thereby preparing for the abutment ball 1102 to push the filter assembly 15 next time.

[0038] In this embodiment, the end of the arc rod 11 close to the baffle plate 9 is a circular protrusion 1101, and the circular protrusion 1101 abuts against the baffle plate 9 to reduce the contact area between the arc rod 11 and the baffle plate 9, thereby reducing friction.

[0039] In this embodiment, there are two cylindrical cavities 108 and filter cartridges 16, which are plugged in one by one. The two cylindrical cavities 108 are arranged side by side and spaced apart. The two filter cartridges 16 are both provided with baffles 9 and slave gears 6. The driving member drives the two filter cartridges 16 to rotate at the same time. The structural configuration and connection method of the two filter cartridges 16 are exactly the same, and they are both rotatably mounted on the corresponding support shafts 3. Specifically, there is a solid between the two cylindrical cavities 108, and the top of the solid between the two cylindrical cavities 108 is a triangular plate 104, so that the air can be diverted to the two filter cartridges 16. The arrangement of the two filter cartridges 16 can increase the filtration area, thereby improving the dust removal efficiency of the dust collector. At the same time, the driving gear 5 is located between the two slave gears 6 and meshes with the two slave gears 6 at the same time, so that when the driving gear 5 rotates, it can simultaneously drive the two slave gears 6 to rotate in the same direction, and then the two baffles 9 can also move synchronously, so that the distance between the two baffles 9 and the ports of the two slave gears 6 is also the same.

[0040] Furthermore, the number of transmission members is also two and corresponds one-to-one with the two filter cartridges 16. The filter assembly 15 is located between the two arc rods 11 on the two transmission members. The number of sliding plates 17 elastically slidably inserted on the filter assembly 15 is two and corresponds one-to-one with the two abutment balls 1102 on the two arc rods 11. The two arc rods 11 abut against the two baffles 9 one-to-one. Since the two baffles 9 move synchronously, the two arc rods 11 also rotate synchronously, so that the two abutment balls 1102 can push the two sliding plates 17 at the same time. The two sliding plates 17 are located on opposite sides of the frame plate 1502, which can effectively improve the force balance of the filter assembly 15, thereby making the arc rod 11 more stable when pushing the filter assembly 15 to rotate.

[0041] In this embodiment, an ash discharge hole 107 is opened at the top of the temporary storage chamber 106 , and a collection bucket 2 is connected below the ash discharge hole 107 . The dust particles entering the temporary storage chamber 106 eventually fall into the collection bucket 2 and are collected in a centralized manner.

[0042] Among them, the body 1 also includes a detachable side plate 102, one end of the support shaft 3 is fixedly connected to the side plate 102 by bolts. When the filter cartridge 16 needs to be removed, the side plate 102 is first removed, and then the limit block 7 is removed to pull the filter cartridge 16 out of the support shaft 3.

[0043] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high negative pressure dust collector that is easy to clean, comprising a body (1), wherein the body (1) is provided with an exhaust port (101) and an air inlet (1031) that are connected to each other, and wherein: The machine body (1) is formed with a temporary storage chamber (106) located below the air inlet (1031); the machine body (1) is provided with a cylindrical chamber (108) whose top is connected to the air inlet (1031) and whose bottom is connected to the temporary storage chamber (106); a support shaft (3) coaxial with the cylindrical chamber (108) is fixedly installed in the machine body (1); a filter cartridge (16) rotatably sleeved on the support shaft (3) is inserted into the cylindrical chamber (108); A slave gear (6) for blocking the port of the filter cartridge (16) is fixedly mounted on one end of the filter cartridge (16), and the other end corresponds to the exhaust port (101). High-pressure air entering from the air inlet (1031) is filtered by the top of the outer peripheral surface of the filter cartridge (16), and dust particles in the air adhere to the top of the outer peripheral surface of the filter cartridge (16). A driving member for driving the filter cartridge (16) to rotate in the cylindrical cavity (108) is provided in the body (1), so that the top of the outer peripheral surface of the filter cartridge (16) can be switched to the bottom and correspond to the temporary storage cavity (106); The machine body (1) is further provided with a ventilation duct (105) connecting the exhaust port (101) and the temporary storage chamber (106); a filter assembly (15) for covering the port of the ventilation duct (105) is provided in the temporary storage chamber (106); part of the high-pressure air filtered by the filter cartridge (16) flows through the port of the filter cartridge (16) to the exhaust port (101) for discharge, and part of the high-pressure air strikes the bottom of the inner cavity of the filter cartridge (16) downward to blow dust particles adhering to the bottom of the outer peripheral surface of the filter cartridge (16) into the temporary storage chamber (106); and then the air is filtered by the filter assembly (15) and flows through the ventilation duct (105) to the exhaust port (101) for discharge.

2. The high negative pressure dust collector for easy dust cleaning according to claim 1 is characterized in that: The driving member comprises a self-locking servo motor (4) mounted on the machine body (1) and a driving gear (5) coaxially connected to an output shaft of the self-locking servo motor (4); the driving gear (5) meshes with a slave gear (6); the self-locking servo motor (4) drives the driving gear (5) to rotate, thereby driving the slave gear (6) and the filter cartridge (16) to rotate.

3. The high negative pressure dust collector for easy dust cleaning according to claim 1 is characterized in that: A baffle (9) is provided at a port of the filter cartridge (16) corresponding to the exhaust port (101), and the baffle (9) can block the port of the filter cartridge (16); a thread (301) is provided on the outer circumferential surface of the support shaft (3); a screw hole (901) is provided at the center of the baffle (9) and is threadedly connected to the thread (301); a plurality of plug rods (10) arranged circumferentially and slidably connected to the baffle (9) are fixedly mounted on the filter cartridge (16); and when the driving member drives the filter cartridge (16) to rotate, the baffle (9) is driven to rotate so that the baffle (9) moves axially, thereby adjusting the resistance of air passing through the port of the filter cartridge (16).

4. The high negative pressure dust collector for easy dust cleaning according to claim 1 is characterized in that: A reinforcing plate (8) is fixedly mounted on both ends of the inner cavity of the filter cartridge (16); the two reinforcing plates (8) are rotatably plugged into the support shaft (3); and the plug rod (10) is fixedly mounted on the reinforcing plate (8) close to the baffle (9).

5. The high negative pressure dust collector for easy dust cleaning according to claim 4 is characterized in that: Two symmetrically arranged limit blocks (7) are fixedly mounted on the support shaft (3), and a plurality of balls (701) are rotatably embedded in the opposite surfaces of the two limit blocks (7), wherein the balls (701) on one of the limit blocks (7) abut against the side of the gear (6), and the balls (701) on the other limit block (7) abut against the side of the reinforcing plate (8), so that the filter cartridge (16) does not move axially when rotating.

6. The high negative pressure dust collector for easy dust cleaning according to claim 1 is characterized in that: The distance between the outer peripheral surface of the filter cartridge (16) and the inner wall of the cylindrical cavity (108) is between 0 and 1 mm.

7. The high negative pressure dust collector for easy dust cleaning according to claim 3 is characterized in that: The filter assembly (15) is elastically rotatably mounted on the inner wall of the temporary storage chamber (106); in an initial state, the filter assembly (15) and the inner wall of the temporary storage chamber (106) are elastically pressed and fitted; a transmission member is provided between the baffle plate (9) and the filter assembly (15); in the process of the drive member driving the baffle plate (9) to move in a direction away from the filter cartridge (16), the drive member can first drive the transmission member to elastically rotate the filter assembly (15); when the filter assembly (15) rotates to an extreme state, the filter assembly (15) is separated from the transmission member and collides with the inner wall of the temporary storage chamber (106) under the action of the elastic rotation force, so that dust particles adhering to the filter assembly (15) are removed.

8. The high negative pressure dust collector for easy dust cleaning according to claim 7 is characterized in that: The transmission member comprises an arc rod (11) elastically rotatably mounted in the machine body (1) and a sliding plate (17) elastically slidably plugged into the filter assembly (15); one end of the arc rod (11) elastically abuts against the side of the baffle (9) and the other end extends into the temporary storage chamber (106); an abutment ball (1102) abutting against the sliding plate (17) is fixedly mounted on the arc rod (11) located in the temporary storage chamber (106); during the movement of the baffle (9), the arc rod (11) is pushed to elastically rotate so that the abutment ball (1102) continuously approaches and pushes the sliding plate (17) to drive the filter assembly (15) to elastically rotate; when the filter assembly (15) rotates to an extreme state, the abutment ball (1102) pushes the sliding plate (17) to slide toward the inside of the filter assembly (15) so that the sliding plate (17) and the abutment ball (1102) are staggered.

9. The high negative pressure dust collector for easy dust cleaning according to claim 8, characterized in that: The cylindrical cavities (108) and filter cartridges (16) are both two and plugged in one-to-one. The two cylindrical cavities (108) are arranged side by side and spaced apart. The two filter cartridges (16) are both provided with baffles (9) and driven gears (6). The driving member drives the two filter cartridges (16) to rotate simultaneously.

10. The high negative pressure dust collector for easy dust cleaning according to claim 9, characterized in that: The number of the transmission members is also two and corresponds one-to-one with the two filter cartridges (16); the filter assembly (15) is located between the two arc rods (11) on the two transmission members; the number of the elastically slidably inserted sliding plates (17) on the filter assembly (15) is two and corresponds one-to-one with the two abutment balls (1102) on the two arc rods (11).

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