Ventilation filtering equipment for mushroom cultivation cabin

Abstract

The application belongs to the technical field of ventilation filtering, and discloses a ventilation filtering equipment for a mushroom cultivation cabin, which comprises a ventilation pipeline, the outer part of the ventilation pipeline is fixed with a wind expanding opening, the inner part of a guide filter plate is installed with a receiving box, the outer part of the guide filter plate is provided with a guide groove, the bottom end of the guide filter plate is installed with a first quick-release mechanism, and the top end of the guide filter plate is provided with a second quick-release mechanism. Through the cooperation of the filtering box, the filtering hole, the cleaning fan and other structures, the device can hang and take down impurities when the cleaning fan rotates, and the impurities fall into the inner part of the receiving box. After the active carbon filter plate is installed, the receiving box still has a dust collecting space to collect dust and impurities. Through the cooperation of the rotating filtering box, the clamping block and the clamping groove, the guide filter plate and the filtering box are closed and opened. After being opened, the active carbon filter plate and the collected dust can be cleaned and replaced, so that the filter assembly can be conveniently cleaned when air is exchanged in the cultivation cabin.

Description

Technical Field

[0001] This invention belongs to the field of ventilation and filtration technology, specifically a ventilation and filtration device for a mushroom cultivation chamber. Background Technology

[0002] The growth process of mushrooms has extremely high requirements for air quality. Traditional mushroom cultivation chambers have many shortcomings in terms of ventilation and filtration, such as unsatisfactory air filtration effect and inability to effectively regulate air temperature, humidity and carbon dioxide concentration. These problems seriously affect the growth quality and yield of mushrooms. Therefore, a ventilation and filtration system is needed to ventilate and exchange air in the cultivation chamber.

[0003] However, existing ventilation and filtration equipment still has drawbacks in practical use: Firstly, it cannot effectively clean the filter components in the ventilation system when ventilating the cultivation chamber, leading to microbial buildup in the ducts. Secondly, the filter components require cleaning after prolonged use, and the existing filter components are too cumbersome to disassemble, resulting in a long overall maintenance cycle for the cultivation chamber. There is a need for highly efficient filtration and purification of the air entering the cultivation chamber, while simultaneously adjusting the air temperature, humidity, and carbon dioxide concentration according to the needs of mushroom growth to provide an ideal growth environment. Furthermore, the filter components need to be able to be cleaned quickly. Summary of the Invention

[0004] To address the problems mentioned in the background section, this invention provides a ventilation and filtration device for mushroom cultivation chambers.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a ventilation and filtration device for a mushroom cultivation chamber, comprising a ventilation duct, an air inlet fixed to the outside of the ventilation duct, a filter plate installed inside the air inlet, a fan installed inside the ventilation duct, a guide filter plate movably connected to the bottom of the ventilation duct, a cleaning mechanism provided at one end of the guide filter plate, a storage box installed inside the guide filter plate, a guide groove opened on the outside of the guide filter plate, a first quick-release mechanism installed at the bottom of the guide filter plate, and a second quick-release mechanism provided at the top of the guide filter plate;

[0006] The cleaning mechanism includes a filter box, filter holes, and a cleaning fan. The filter box is rotatably connected to the outside of the guide filter plate. The filter box has filter holes inside. The cleaning fan is movably connected inside the filter box. A locking block is fixed to the top of the filter box. A locking groove is provided on the outside of the guide filter plate.

[0007] Preferably, the filter holes are provided in several groups, and the filter holes are distributed at equal intervals about the central axis of the filter box, and the cleaning fan is rotatably connected inside the filter box.

[0008] Preferably, the cleaning fan has blades fixed to its exterior, and the blades are arranged in three sets of equally spaced segments about the central axis of the cleaning fan, with the locking block and the locking slot engaging and connecting.

[0009] Preferably, the first quick-release mechanism includes a limiting block, a first return spring, and an arc edge. The limiting block is movably connected inside the ventilation duct, and the first return spring is fixed to the outside of the limiting block. The top of the filter box has an arc edge, and the bottom of the guide filter plate has a gripping rod. The bottom of the guide filter plate is movably connected to a transmission block, the top of the transmission block has a top block, and the bottom of the top block has a second return spring mechanism.

[0010] Preferably, the limiting block and the ventilation duct are slidably connected, and several sets of the first return springs are provided. The first return springs are equidistantly distributed and are used to squeeze the limiting block and keep it moving towards the bottom of the filter box.

[0011] Preferably, two sets of gripping rods are provided, and the gripping rods are symmetrically distributed about the central axis of the guide filter plate. The transmission block and the guide filter plate are slidably connected. Two sets of the second reset spring structure are provided, and the second reset spring structure is symmetrically distributed about the central axis of the top block. The second reset spring structure is fixed at the bottom end inside the guide filter plate. The second reset spring structure is used to squeeze the top block and keep it moving downward.

[0012] Preferably, the second quick-release mechanism includes a mounting base, a transmission rod, and a limiting plate. The mounting base is fixed to the top of the guide filter plate, the top of the mounting base is fixed with a transmission rod, the top of the transmission rod is fixed with a limiting plate, a movable plate is movably connected to the outside of the transmission rod, a limiting groove is opened inside the ventilation duct, a limiting rod is movably connected inside the ventilation duct, a third return spring is sleeved on the outside of the limiting rod, and a quick-connect block is fixed to the outside of the limiting rod.

[0013] Preferably, two sets of mounting seats are provided, and the mounting seats are symmetrically distributed about the central axis of the guide filter plate. The transmission rod and the movable disc are slidably connected. The diameter of the movable disc is larger than the diameter of the limiting disc. The limiting rod and the ventilation duct are slidably connected. The third return spring is used to squeeze the limiting rod and keep it moving towards the center of the limiting groove.

[0014] Preferably, the filter sheets are arranged in several groups, the filter sheets are distributed at equal intervals, the guide filter plates are arranged in two groups, the storage box and the guide filter plates are internally engaged, and the guide grooves are arranged in four directions.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] This invention, through the coordinated arrangement of a filter box, filter holes, and cleaning fan, enables the device to remove impurities as the cleaning fan rotates, allowing them to fall into the storage box. Even after the activated carbon filter plate is installed, the storage box still has a dust collection space to hold dust and impurities. Furthermore, the rotation of the filter box, along with the cooperation of locking blocks and slots, allows the guide filter plate and filter box to close and open. Once opened, the activated carbon filter plate and the collected dust can be cleaned and replaced, thus facilitating the cleaning of the filter components during ventilation within the culture chamber.

[0017] This invention, through the combination of a limiting block, a first reset spring, and an arc edge, enables the device to create a slot between the guide filter plate and the filter box when they are closed. During the installation of the entire filter assembly, pushing upwards causes the arc edge to contact the bottom of the limiting block. The shape of the limiting block and the arc edge compresses the limiting block inwards. After the entire filter box has passed through, the first reset spring compresses the limiting block to return it to its original position, inserting it into the slot to secure the filter assembly. During disassembly, pressing the transmission block moves the top block upwards. After the top block contacts the limiting block, it re-compresses and retracts the limiting block, allowing the filter assembly to be extracted. This facilitates the disassembly, cleaning, and replacement of the filter assembly. This invention, through the coordinated arrangement of a mounting base, transmission rod, and limiting plate, allows the device to, during installation by pressing upwards on the guide filter plate, have the limiting plate enter the limiting groove and contact the quick-connect block, pressing the quick-connect block and limiting rod inwards. After the limiting plate passes the quick-connect block, a third return spring resets the limiting rod and quick-connect block, and the quick-connect block limits the limiting plate. Since the fixing of the limiting block only supports the bottom of the filter box, fixing the position of the guide filter plate by fixing the limiting plate makes the filter assembly more securely installed. During removal, continuing to press upwards causes the movable plate to move upwards and contact the quick-connect block. After the quick-connect block passes the movable plate, it presses and lifts the movable plate. Since the diameter of the movable plate is larger than the limiting plate, pulling down the entire guide filter plate at this point allows the limiting plate to detach from the quick-connect block, thus enabling the removal of the filter assembly. This achieves the goal of making the filter assembly more securely installed without hindering disassembly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the overall right-side structure of the present invention;

[0020] Figure 3 This is a frontal cross-sectional view of the present invention.

[0021] Figure 4 This is a schematic diagram of the overall right-side cross-sectional structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the filter assembly structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the cleaning mechanism structure of the present invention;

[0024] Figure 7 This is a schematic diagram of the first quick-release mechanism of the present invention;

[0025] Figure 8 This is a schematic diagram of the airflow guidance of the present invention;

[0026] Figure 9 This is a schematic diagram of the second quick-release mechanism of the present invention. In the diagram: 1. Ventilation duct; 2. Air inlet; 3. Filter plate; 4. Fan; 5. Guide filter plate; 6. Cleaning mechanism; 601. Filter box; 602. Filter hole; 603. Cleaning fan; 604. Locking block; 605. Locking groove; 7. Storage box; 8. Guide groove; 9. First quick-release mechanism; 901. Limiting block; 902. First return spring; 903. Arc edge; 904. Grab rod; 905. Transmission block; 906. Top block; 907. Second return spring mechanism; 10. Second quick-release mechanism; 1001. Mounting base; 1002. Transmission rod; 1003. Limiting plate; 1004. Movable plate; 1005. Limiting groove; 1006. Limiting rod; 1007. Third return spring; 1008. Quick-connect block. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] like Figures 1 to 8 As shown, the present invention provides a ventilation and filtration device for a mushroom cultivation chamber, including a ventilation duct 1, an air inlet 2 fixed to the outside of the ventilation duct 1, a filter 3 installed inside the air inlet 2, a fan 4 installed inside the ventilation duct 1, a guide filter plate 5 movably connected to the bottom of the ventilation duct 1, a cleaning mechanism 6 provided at one end of the guide filter plate 5, a storage box 7 installed inside the guide filter plate 5, a guide groove 8 opened on the outside of the guide filter plate 5, several sets of filter 3 are arranged, the filter 3 are evenly spaced, two sets of guide filter plates 5 are arranged, the storage box 7 and the guide filter plate 5 are internally engaged, the guide groove 8 is arranged in four directions, a first quick-release mechanism 9 is installed at the bottom of the guide filter plate 5, and a second quick-release mechanism 10 is installed at the top of the guide filter plate 5.

[0029] The above scheme is adopted: the rotation of the fan 4 can collect outdoor air inward, the filter 3 filters larger impurities, and after the air enters the ventilation duct 1, it is guided by the guide groove 8 at one end of the guide filter plate 5. The guide groove 8 guides the air to enter the interior of the guide filter plate 5 and the filter box 601 in a spiral state. The direction of the air flow can drive the cleaning fan 603 to rotate.

[0030] like Figures 1 to 8 As shown, the cleaning mechanism 6 includes a filter box 601, filter holes 602, and a cleaning fan 603. The filter box 601 is rotatably connected to the outside of the guide filter plate 5. The filter holes 602 are opened inside the filter box 601. The cleaning fan 603 is movably connected inside the filter box 601. Several sets of filter holes 602 are opened. The filter holes 602 are evenly distributed about the central axis of the filter box 601. The cleaning fan 603 is rotatably connected inside the filter box 601.

[0031] like Figures 1 to 8 As shown, a locking block 604 is fixed to the top of the filter box 601, a slot 605 is provided on the outside of the guide filter plate 5, and a fan blade is fixed to the outside of the cleaning fan 603. The fan blade is provided with three sets of blades that are evenly distributed about the central axis of the cleaning fan 603. The locking block 604 and the slot 605 are engaged and connected.

[0032] The above solution involves guiding the air collected inside the ventilation duct 1 through the guide groove 8. The guided air then comes into contact with the cleaning fan 603, causing the cleaning fan 603 to rotate. As the air passes through the guide filter plate 5 and the filter hole 602, the filter hole 602 filters out impurities in the air, causing the impurities to adhere to the inside of the filter box 601. At this time, the cleaning fan 603 can remove the impurities and let them fall into the storage box 7. The storage box 7 still has a dust collection space after the activated carbon filter plate is installed, which can collect dust and impurities. Furthermore, by rotating the filter box 601 and cooperating with the locking block 604 and the locking slot 605, the guide filter plate 5 and the filter box 601 can be closed and opened. After opening, the activated carbon filter plate and the collected dust can be cleaned and replaced.

[0033] like Figures 1 to 8 As shown, the first quick-release mechanism 9 includes a limiting block 901, a first return spring 902, and an arc edge 903. The limiting block 901 is movably connected inside the ventilation duct 1, and the first return spring 902 is fixed to the outside of the limiting block 901. The limiting block 901 and the ventilation duct 1 are slidably connected. Several sets of the first return spring 902 are provided and are equidistantly distributed. The first return spring 902 is used to squeeze the limiting block 901 and keep it moving towards the bottom of the filter box 601.

[0034] like Figures 1 to 8As shown, the top of the filter box 601 has an arc edge 903, the bottom of the guide filter plate 5 is fixed with a gripping rod 904, the bottom of the guide filter plate 5 is movably connected with a transmission block 905, the top of the transmission block 905 is fixed with a top block 906, the bottom of the top block 906 is fixed with a second reset spring mechanism 907, two sets of gripping rods 904 are provided, the gripping rods 904 are symmetrically distributed about the central axis of the guide filter plate 5, the transmission block 905 and the guide filter plate 5 are slidably connected, two sets of second reset spring mechanisms 907 are provided, the second reset spring mechanisms 907 are symmetrically distributed about the central axis of the top block 906, the second reset spring mechanism 907 is fixed inside the bottom of the guide filter plate 5, the second reset spring mechanism 907 is used to squeeze the top block 906 and keep it moving downward.

[0035] The above solution is adopted as follows: When the guide filter plate 5 and the filter box 601 are closed, a slot is generated between the guide filter plate 5 and the filter box 601. When installing the entire filter assembly, push it upward so that the arc edge 903 contacts the bottom end of the limiting block 901. The shape of the limiting block 901 and the arc edge 903 squeezes the limiting block 901 to retract inward. After the filter box 601 has passed through as a whole, the first reset spring 902 squeezes the limiting block 901 to reset, so that it is inserted into the slot to fix the filter assembly. When disassembling, press the transmission block 905 to drive the top block 906 to move upward. After the top block 906 moves upward and contacts the limiting block 901, it squeezes and retracts the limiting block 901 again. At this time, the filter assembly is pulled out.

[0036] like Figures 1 to 9 As shown, the second quick-release mechanism 10 includes a mounting base 1001, a transmission rod 1002, and a limiting plate 1003. The mounting base 1001 is fixed to the top of the guide filter plate 5. The transmission rod 1002 is fixed to the top of the mounting base 1001. The limiting plate 1003 is fixed to the top of the transmission rod 1002. A movable plate 1004 is movably connected to the outside of the transmission rod 1002. A limiting groove 1005 is opened inside the ventilation duct 1. A limiting rod 1006 is movably connected inside the ventilation duct 1. A limiting rod 1006 is sleeved on the outside of the limiting rod 1006. The third return spring 1007, the quick-connect block 1008 is fixed to the outside of the limiting rod 1006, the mounting base 1001 is provided with two sets, the mounting base 1001 is symmetrically distributed about the central axis of the guide filter plate 5, the transmission rod 1002 and the movable plate 1004 are slidably connected, the diameter of the movable plate 1004 is larger than the diameter of the limiting plate 1003, the limiting rod 1006 and the ventilation duct 1 are slidably connected, the third return spring 1007 is used to squeeze the limiting rod 1006 and keep it moving towards the center of the limiting groove 1005.

[0037] Using the above scheme: When installing by pressing the guide filter plate 5 upwards, the limiting plate 1003 enters the interior of the limiting groove 1005 and contacts the quick-connect block 1008, pressing the quick-connect block 1008 and the limiting rod 1006 inwards. After the limiting plate 1003 passes the quick-connect block 1008, the third return spring 1007 resets the limiting rod 1006 and the quick-connect block 1008, and limits the limiting plate 1003 through the quick-connect block 1008. Since the fixing of the limiting block 901 can only fix the bottom of the filter box 601, The limiting plate 1003 provides support and fixes the position of the guide filter plate 5, thereby making the filter assembly more secure. When removing it, continue to press upwards. After the movable plate 1004 moves upwards and contacts the quick-connect block 1008, the quick-connect block 1008 passes the movable plate 1004 and squeezes and lifts the movable plate 1004. Since the diameter of the movable plate 1004 is larger than that of the limiting plate 1003, the guide filter plate 5 is pulled down as a whole, which can disengage the limiting plate 1003 from the quick-connect block 1008.

[0038] The working principle and usage process of this invention: The air collected inside the ventilation duct 1 is guided by the guide groove 8, and the guided air comes into contact with the cleaning fan 603, causing the cleaning fan 603 to rotate. As the air passes through the guide filter plate 5 and the filter hole 602, the filter hole 602 can filter the impurities in the air, causing the impurities to adhere to the inside of the filter box 601. At this time, the cleaning fan 603 can pick up the impurities and let them fall into the storage box 7. The storage box 7 still has a dust collection space after the activated carbon filter plate is installed, which can collect dust and impurities. Furthermore, the rotation of the filter box 601 and the cooperation of the locking block 604 and the locking slot 605 further facilitate the collection of dust and impurities. This allows the guide filter plate 5 and filter box 601 to close and open. When open, the activated carbon filter plate and collected dust can be cleaned and replaced. When the guide filter plate 5 and filter box 601 are closed, a slot is created between them. During installation of the entire filter assembly, pushing upwards causes the arc edge 903 to contact the bottom end of the limiting block 901. The shape of the limiting block 901 and the arc edge 903 compresses the limiting block 901 inwards. After the filter box 601 has passed through completely, the first return spring 902 presses the limiting block 901 to return it to its original position, inserting it into the slot to secure the filter assembly. During disassembly, pressing the transmission... The moving block 905 drives the top block 906 to move upward. After the top block 906 moves upward and contacts the limiting block 901, it re-squeezes and retracts the limiting block 901. At this time, when the filter assembly is pulled out and the guide filter plate 5 is pressed upward for installation, the limiting plate 1003 enters the interior of the limiting groove 1005 and contacts the quick-connect block 1008, squeezing the quick-connect block 1008 and the limiting rod 1006 inward. After the limiting plate 1003 passes the quick-connect block 1008, the third return spring 1007 resets the limiting rod 1006 and the quick-connect block 1008, and limits the limiting plate 1003 through the quick-connect block 1008. Since the fixing of the limiting block 901 can only limit the filter... The bottom of box 601 provides support. By fixing the limiting plate 1003, the position of the guide filter plate 5 is fixed, thus making the filter assembly more secure. When removing it, continue to press upwards. After the movable plate 1004 moves upwards and contacts the quick-connect block 1008, the quick-connect block 1008 passes the movable plate 1004 and squeezes and lifts the movable plate 1004. Since the diameter of the movable plate 1004 is larger than that of the limiting plate 1003, the guide filter plate 5 is pulled down as a whole, which can detach the limiting plate 1003 from the quick-connect block 1008. Thus, the installation of the filter assembly is ensured through two fixing methods, and the disassembly of the filter assembly is not affected.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ventilation and filtration device for a mushroom cultivation chamber, comprising a ventilation duct (1), characterized in that: An air vent (2) is fixed to the outside of the ventilation duct (1). A filter (3) is installed inside the air vent (2). A fan (4) is installed inside the ventilation duct (1). A guide filter plate (5) is movably connected to the bottom of the ventilation duct (1). A cleaning mechanism (6) is provided at one end of the guide filter plate (5). A storage box (7) is installed inside the guide filter plate (5). A guide groove (8) is opened on the outside of the guide filter plate (5). A first quick-release mechanism (9) is installed at the bottom of the guide filter plate (5). A second quick-release mechanism (10) is provided at the top of the guide filter plate (5). The cleaning mechanism (6) includes a filter box (601), a filter hole (602), and a cleaning fan (603). The filter box (601) is rotatably connected to the outside of the guide filter plate (5). The filter box (601) has a filter hole (602) inside. The cleaning fan (603) is movably connected to the inside of the filter box (601). A locking block (604) is fixed at the top of the filter box (601). A locking groove (605) is opened on the outside of the guide filter plate (5). The first quick-release mechanism (9) includes a limiting block (901), a first return spring (902), and an arc edge (903). The limiting block (901) is movably connected inside the ventilation duct (1). The first return spring (902) is fixed to the outside of the limiting block (901). The top of the filter box (601) is provided with an arc edge (903). The bottom of the guide filter plate (5) is fixed with a gripping rod (904). The bottom of the guide filter plate (5) is movably connected with a transmission block (905). The top of the transmission block (905) is fixed with a top block (906). The bottom of the top block (906) is fixed with a second return spring mechanism (907). The second quick-release mechanism (10) includes a mounting base (1001), a transmission rod (1002), and a limiting plate (1003). The mounting base (1001) is fixed to the top of the guide filter plate (5). The transmission rod (1002) is fixed to the top of the mounting base (1001). The limiting plate (1003) is fixed to the top of the transmission rod (1002). The external part of the transmission rod (1002) is movably connected to a movable plate (1004). A limiting groove (1005) is opened inside the ventilation duct (1). A limiting rod (1006) is movably connected inside the ventilation duct (1). A third return spring (1007) is sleeved on the outside of the limiting rod (1006). A quick-connect block (1008) is fixed on the outside of the limiting rod (1006).

2. The ventilation and filtration equipment for mushroom cultivation chambers according to claim 1, characterized in that: The filter holes (602) are provided in several groups, and the filter holes (602) are distributed at equal intervals about the central axis of the filter box (601). The cleaning fan (603) is rotatably connected to the inside of the filter box (601).

3. The ventilation and filtration equipment for mushroom cultivation chambers according to claim 1, characterized in that: The cleaning fan (603) has blades fixed to its exterior. The blades are provided with three sets of blades that are evenly distributed about the central axis of the cleaning fan (603). The locking block (604) and the locking slot (605) are engaged and connected.

4. The ventilation and filtration equipment for mushroom cultivation chambers according to claim 1, characterized in that: The limiting block (901) and the ventilation duct (1) are slidably connected. The first reset spring (902) is provided in several groups. The first reset spring (902) is equidistantly distributed. The first reset spring (902) is used to squeeze the limiting block (901) and keep it moving towards the bottom of the filter box (601).

5. The ventilation and filtration equipment for mushroom cultivation chambers according to claim 1, characterized in that: Two sets of gripping rods (904) are provided, and the gripping rods (904) are symmetrically distributed about the central axis of the guide filter plate (5). The transmission block (905) and the guide filter plate (5) are slidably connected. Two sets of the second reset spring mechanism (907) are provided, and the second reset spring mechanism (907) is symmetrically distributed about the central axis of the top block (906). The second reset spring mechanism (907) is fixed at the bottom inside the guide filter plate (5). The second reset spring mechanism (907) is used to squeeze the top block (906) and keep it moving downward.

6. The ventilation and filtration equipment for mushroom cultivation chambers according to claim 1, characterized in that: Two sets of mounting bases (1001) are provided. The mounting bases (1001) are symmetrically distributed about the central axis of the guide filter plate (5). The transmission rod (1002) and the movable disk (1004) are slidably connected. The diameter of the movable disk (1004) is larger than the diameter of the limiting disk (1003). The limiting rod (1006) and the ventilation duct (1) are slidably connected. The third return spring (1007) is used to squeeze the limiting rod (1006) and keep it moving towards the center of the limiting groove (1005).

7. The ventilation and filtration equipment for mushroom cultivation chambers according to claim 1, characterized in that: The filter sheet (3) is provided in several groups, and the filter sheet (3) is distributed at equal intervals. The guide filter plate (5) is provided in two groups. The storage box (7) and the guide filter plate (5) are internally engaged and connected. The guide groove (8) is provided in four directions.

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