Multi-stage purifying and filtering assembly for all-air air conditioning system

Abstract

The invention relates to the technical field of air purification, in particular to a multi-stage purification filter assembly for an all-air air conditioning system, which comprises a conical purification barrel, a plurality of conical filter screens, an elastic element and a driving part, an exhaust port is formed in the small end of the purification barrel, and an air inlet is formed in the large end of the purification barrel; the plurality of conical filter screens are arranged in the middle of the purification barrel and are arranged at intervals in the height direction of the purification barrel, the areas of the plurality of filter screens are different, and the areas of the plurality of filter screens are gradually increased from the small end to the large end of the purification barrel; the elastic element is configured to provide elastic pre-tightening force pointing from the large end of the purification barrel to the small end of the purification barrel for the multiple filter screens; and the driving piece is connected with the plurality of filter screens and is constructed to intermittently provide tensile force opposite to the elastic pre-tightening force for the plurality of filter screens. The multiple filter screens can be cleaned through vibration under the condition that the filter screens are not detached, and compared with a traditional filter screen, the cleaning process is simplified.

Description

Technical Field

[0001] The invention relates to the technical field of air purification, in particular to a multi-stage purification filter component for a full air conditioning system. Background Art

[0002] In the fresh air system, filters are used to capture dust particles in the air. According to the size of the captured dust particles, filters can be divided into several different levels: primary filters (G series), medium filters (F series), high efficiency filters (H series) and ultra-high efficiency filters (U series). The definition of these levels is usually based on the diameter of the particles they can effectively remove.

[0003] In practical applications, multi-stage filtration systems usually combine filters of different levels to achieve the best overall purification effect. For example, in a typical air purification system, a G series primary filter may be used to remove larger particles, followed by an F series medium filter to handle smaller particles, and finally an H or U series high efficiency / ultra-high efficiency filter to ensure the final air cleanliness. These filters will be installed in the channel of the air purification device in sequence along the direction of air flow, and need to form a good seal with the inner wall of the channel to prevent untreated air from flowing into the room.

[0004] However, in the prior art, each filter needs to be fixed in the channel individually and can be disassembled to facilitate the subsequent cleaning of the blocked filter. Common fixing schemes include snap-on, screw fixing, etc. Although these methods can ensure that the filter is firmly installed in place, they also bring inconveniences, that is, the disassembly and cleaning process of the filter is relatively cumbersome, which increases the complexity and time cost of maintenance work. Therefore, it is necessary to develop a new multi-stage purification filter assembly that can facilitate the cleaning of the filter, thereby improving the maintenance efficiency of the entire air purification system. Summary of the invention

[0005] The object of the present invention is to provide a multi-stage purification filter assembly for a full air conditioning system, so as to solve the problems raised in the above-mentioned background technology.

[0006] The present invention is achieved through the following technical solutions:

[0007] A multi-stage purification and filtration assembly for a full air conditioning system comprises a conical purification cylinder, a plurality of conical filter screens, an elastic element and a driving member, wherein an exhaust port is arranged at the small end of the purification cylinder, and an air inlet is arranged at the large end of the purification cylinder; a plurality of conical filter screens are arranged in the middle of the purification cylinder and are arranged at intervals along the height direction of the purification cylinder, the areas of the plurality of filter screens are different, and the areas of the plurality of filter screens gradually increase from the small end to the large end of the purification cylinder; the elastic element is configured to provide an elastic preload force from the large end of the purification cylinder to the small end of the plurality of filter screens; the driving member is connected to the plurality of filter screens and is constructed to intermittently provide a pulling force opposite to the elastic preload force to the plurality of filter screens.

[0008] Optionally, the driving member is a pull rope, which connects multiple filter screens in series. The elastic element includes a first compression spring and multiple second compression springs. The first compression spring is arranged between the filter screen with the largest area and the purification cylinder, and a second compression spring is arranged between each adjacent filter screen.

[0009] Optionally, the first end of the pull rope moves through the filter with the smallest area and is fixedly connected to a limit piece, and the second end of the pull rope moves through the bottom of the purification cylinder and is connected to a driving device, and the driving device can intermittently provide a pulling force opposite to the elastic preload force to the second end of the pull rope.

[0010] Optionally, the driving device includes a crankshaft and a motor driving the crankshaft to rotate, the second end of the pull rope is tied to the crankshaft, and the second end of the pull rope is slidably connected to the crankshaft when the crankshaft rotates.

[0011] Optionally, a sleeve is provided at the inner bottom of the purification cylinder, and the pull rope is passed through the sleeve.

[0012] Optionally, the multi-stage purification filter assembly for the full air air conditioning system also includes a shielding component, the shielding component includes a first plate body and a second plate body, the outer edge of the first plate body is fixed on the inner wall of the purification cylinder below the air inlet, the middle of the first plate body has a center hole, the second plate body is located below the first plate body and can cover the center hole, and the second plate body is fixedly connected to the pull rope, and the first compression spring is set between the filter screen with the largest area and the purification cylinder, and is changed to be set between the filter screen with the largest area and the second plate body, and a third compression spring is set between the second plate body and the purification cylinder.

[0013] Optionally, the purification cylinder includes a lower cylinder located at its large end and an upper cylinder located at its small end, and the lower end opening of the lower cylinder and the upper end opening of the upper cylinder are connected to each other and are detachably fixedly connected by a buckle.

[0014] Optionally, the outer edge of the first plate body is sandwiched between the lower end opening of the lower cylinder and the upper end opening of the upper cylinder.

[0015] Compared with the prior art, the present invention provides a multi-stage purification filter assembly for a full air conditioning system, which has the following beneficial effects:

[0016] 1. The present invention provides a conical purification cylinder, multiple conical filter screens, elastic elements and driving parts, so that the multiple filter screens can be cleaned by vibration without being disassembled. After cleaning, the filter screens can immediately return to the working position. Compared with traditional filter screens, the cleaning process is simplified and the complexity and time cost of filter screen maintenance are reduced;

[0017] 2. When the pull cord is pulled downward intermittently, the elastic force of the first compression spring can drive multiple filter screens to vibrate up and down. At the same time, the elastic force of multiple second compression springs can cause relative movement between adjacent filter screens, thereby further increasing the vibration of the filter screens, making it easier to shake off dust and ensuring the cleaning effect. In addition, when not cleaning, these filter screens can be pressed in the working position by the first compression spring and the second compression spring to meet the filtering requirements;

[0018] 3. The present invention provides a shielding component including a first plate and a second plate. When in operation, the first plate and the second plate form a shield so that the air entering the purification cylinder from the air inlet does not come into contact with water, thereby ensuring that the air is not further humidified. When cleaning the filter, the pull cord is pulled, the center hole of the first plate is opened, and the dust falling from the filter can be discharged into the water through the center hole of the first plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention in use state;

[0020] Figure 2 It is a schematic diagram of the structure when the driving member of the present invention is a pull rope;

[0021] Figure 3 It is a schematic structural diagram when the driving member of the present invention is a pull rod.

[0022] In the figure: 1. purification cylinder; 100. upper cylinder; 101. lower cylinder; 102. exhaust port; 103. air inlet; 2. buckle; 3. filter; 4. elastic element; 40. first compression spring; 41. second compression spring; 42. third compression spring; 5. pull rope; 6. pull rod; 7. driving device; 70. crankshaft; 71. motor; 8. sleeve; 9. shielding component; 90. first plate; 91. second plate; 10. fan; 11. limiter. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example: See Figures 1 to 3 According to an embodiment of the present invention, a multi-stage purification filter assembly for a full air conditioning system is provided, which includes a conical purification cylinder 1, a plurality of conical filter screens 3, an elastic element 4 and a driving member, wherein an exhaust port 102 is arranged at the small end of the purification cylinder 1, and an air inlet 103 is arranged at the large end of the purification cylinder 1; the plurality of conical filter screens 3 are arranged in the middle of the purification cylinder 1 and are arranged at intervals along the height direction of the purification cylinder 1, the areas of the plurality of filter screens 3 are different, and the areas of the plurality of filter screens 3 gradually increase from the small end to the large end of the purification cylinder 1, and in order to ensure the best filtering effect, the aperture of the filter screen 3 gradually decreases from the end close to the air inlet 103 to the end close to the exhaust port 102; the elastic element 4 is configured to be able to provide an elastic preload force from the large end of the purification cylinder 1 to the small end to the plurality of filter screens 3; the driving member is connected to the plurality of filter screens 3 and is configured to be able to intermittently provide a pulling force opposite to the elastic preload force to the plurality of filter screens 3.

[0025] The multi-stage purification filter assembly for the full air conditioning system using the above structure can be used to connect the exhaust port 102 of the purification cylinder 1 to the fan 10 when in use. The fan 10 generates negative pressure at the exhaust port 102, prompting the air to enter the purification cylinder 1 from the air inlet 103, and then be discharged from the exhaust port 102 of the purification cylinder 1 after being filtered by the multiple filter screens 3. During this period, the airflow generates upward pressure on the filter screen 3, pressing the edge of the filter screen 3 against the inner wall of the purification cylinder 1, so that all air can flow through the filter screen 3. When it is necessary to clean the dust attached to the filter screen 3, the multiple filter screens 3 can be intermittently pulled downward by the driving member, and the filter screen 3 can be shaken in the up and down directions with the cooperation of the elastic element 4, and the shaking can make the dust on the filter screen 3 gather toward the edge of the filter screen 3. Moreover, during the shaking process of the filter screen 3, a gap will be generated between its edge and the inner wall of the purification cylinder 1, and the dust particles shaken off can gradually fall down along the gap, and finally fall to the bottom of the purification cylinder 1 and be collected. It can be seen that the multiple filter screens 3 in the multi-stage purification filter assembly of the full air conditioning system can be cleaned by vibration without being disassembled. After cleaning, the filter screens 3 can immediately return to the working position. Compared with traditional filter screens 3, the cleaning process is simplified and the complexity and time cost of the maintenance work of the filter screens 3 are reduced.

[0026] It should be noted that in order to ensure the air purification effect and improve the dust collection effect, the operation of the fan 10 needs to be suspended when cleaning the filter 3. At the same time, an appropriate amount of water can be injected into the bottom of the purification cylinder 1 so that the dust can be dissolved in the water to prevent the dust that falls on the bottom of the purification cylinder 1 from rising again.

[0027] In this exemplary embodiment, the driving member is a pull rope 5, which connects multiple filter screens 3 in series, that is, the pull rope 5 moves through each filter screen 3, and the elastic element 4 includes a first compression spring 40 and multiple second compression springs 41. The first compression spring 40 is arranged between the filter screen 3 with the largest area and the purification cylinder 1, and a second compression spring 41 is arranged between each adjacent filter screen 3. When the pull rope 5 is pulled downward intermittently, under the elastic force of the first compression spring 40, the multiple filter screens 3 can be driven to vibrate up and down. At the same time, under the elastic force of the multiple second compression springs 41, relative movement can be generated between adjacent filter screens 3, thereby further increasing the vibration of the filter screen 3, making it easier to shake off dust, and ensuring the cleaning effect. In addition, when not cleaning, these filter screens 3 can be pressed against the working position by the first compression spring 40 and the second compression spring 41 to meet the filtering requirements.

[0028] Of course, if Figure 3As shown, in another embodiment, the driving member can also be a pull rod 6, which fixedly connects multiple filter screens 3, and adjacent filter screens 3 are kept at a certain interval by the pull rod 6, and the elastic element 4 only includes a first compression spring 40, which is arranged between the filter screen 3 with the largest area and the purification cylinder 1. Such an arrangement can also meet the vibration cleaning requirements of the filter screen 3.

[0029] In this exemplary embodiment, the first end of the pull rope 5 moves through the filter 3 with the smallest area and is fixedly connected to a stopper 11, and the second end of the pull rope 5 moves through the bottom of the purification cylinder 1 and is connected to a drive device 7, and the drive device 7 can intermittently provide a pulling force opposite to the elastic preload to the second end of the pull rope 5. Preferably, the drive device 7 includes a crankshaft 70 and a motor 71 that drives the crankshaft 70 to rotate, and the second end of the pull rope 5 is tied to the crankshaft 70, and the second end of the pull rope 5 is slidably connected to the crankshaft 70 when the crankshaft 70 rotates. When the filter 3 needs to be cleaned, the motor 71 is started to drive the crankshaft 70 to rotate, and the crankshaft 70 intermittently pulls the pull rope 5 downward, and the filter 3 shakes up and down with the movement of the pull rope 5 and the elastic force of the elastic element 4, so as to shake off the dust on the filter 3. Of course, the drive device 7 is not necessary, and the staff can also manually pull the pull rope 5 to move.

[0030] In this exemplary embodiment, a sleeve 8 is provided at the inner bottom of the purification cylinder 1, and the pull rope 5 is provided through the sleeve 8. The provision of the sleeve 8 can effectively prevent the water in the purification cylinder 1 from leaking out, and can also be used as a channel for the pull rope 5 to move through the purification cylinder 1 to ensure that the pull rope 5 can be pulled smoothly.

[0031] When the purification cylinder 1 is filled with water for treating dust, the humidity of the air entering the purification cylinder 1 will increase. If such high humidity air is not needed indoors, it is necessary to remove part of the moisture in the air by drying, which is a more troublesome operation. Based on this, in this exemplary embodiment, the multi-stage purification filter assembly for the full air conditioning system also includes a shielding component 9, which includes a first plate 90 and a second plate 91. The outer edge of the first plate 90 is fixed on the inner wall of the purification cylinder 1 below the air inlet 103. The middle of the first plate 90 has a center hole. The second plate 91 is located below the first plate 90 and can cover the center hole. The second plate 91 is fixedly connected to the pull rope 5. The first compression spring 40 is set between the filter screen 3 with the largest area and the purification cylinder 1, and is changed to be set between the filter screen 3 with the largest area and the second plate 91, and a third compression spring 42 is set between the second plate 91 and the purification cylinder 1. When in working state, the first plate body 90 and the second plate body 91 fit together to form a shield at the inner bottom of the purification cylinder 1, which divides the space at the inner bottom of the purification cylinder 1 into two spaces, an upper and a lower space. The air inlet 103 of the purification cylinder 1 is connected with the upper space, and water is contained in the lower space. In this way, when the air enters the purification cylinder 1 through the air inlet 103, it will not come into contact with the water, which can ensure that the air is not further humidified. At the same time, when the relatively dry air passes through the filter 3, the dust in the air is less likely to adhere to the filter 3, thereby reducing the difficulty of subsequent cleaning of the filter 3. When the filter 3 needs to be cleaned, the pull rope 5 is pulled, and the second plate 91 can be driven to reciprocate up and down under the elastic force of the third compression spring 42. When the second plate 91 moves downward, the center hole of the first plate 90 will be opened, and the dust falling from the filter 3 can be discharged into the water through the center hole of the first plate 90. After cleaning, the second plate 91 will be pressed against the center hole of the first plate 90 under the elastic force of the third compression spring 42, and the center hole of the first plate 90 will be closed, thereby preventing the air entering the purification cylinder 1 from contacting the water and being humidified by the water.

[0032] In order to reduce the amount of dust attached to the first plate 90 and the second plate 91, the first plate 90 and the second plate 91 are both configured to be conical structures, with the tip of the first plate 90 facing downward and the tip of the second plate 91 facing upward. In this way, when dust falls on the surfaces of the first plate 90 and the second plate 91, it can slide downward more smoothly.

[0033] In this exemplary embodiment, the purification cylinder 1 includes a lower cylinder 101 located at its large end and an upper cylinder 100 located at its small end, and the lower end opening of the lower cylinder 101 and the upper end opening of the upper cylinder 100 are connected and detachably fixedly connected by a buckle 2. The purification cylinder 1 is configured as a detachably connected lower cylinder 101 and upper cylinder 100, which can facilitate the installation and removal of the filter 3.

[0034] In this exemplary embodiment, the outer edge of the first plate body 90 is sandwiched between the lower end opening of the lower cylinder 101 and the upper end opening of the upper cylinder 100. The first plate body 90 is fixed between the lower cylinder 101 and the upper cylinder 100 in a clamping manner, and the first plate body 90 can be installed and removed synchronously when the lower cylinder 101 and the upper cylinder 100 are installed and removed, thereby making the second plate body 91 detachable.

[0035] Working principle: Connect the exhaust port 102 of the purification cylinder 1 to the fan 10. When the fan 10 is started, negative pressure is generated at the exhaust port 102, which forces the external air to enter the purification cylinder 1 from the air inlet 103. The air flows through the multiple filter screens 3 for filtration, and then is discharged from the exhaust port 102 of the purification cylinder 1. In the process of the airflow passing through the filter screen 3, the airflow generates an upward pressure on the filter screen 3, which presses the edge of the filter screen 3 against the inner wall of the purification cylinder 1 to ensure that all air is filtered through the filter screen 3. When it is necessary to clean the dust attached to the filter screen 3, the multiple filter screens 3 can be intermittently pulled downward by the driving member. The filter 3 is moved in cooperation with the elastic element 4, so that the filter 3 is shaken in the up and down directions. The shaking will cause the dust on the filter 3 to gather toward the edge of the filter 3 and finally fall off. During the shaking process of the filter 3, a gap will be generated between its edge and the inner wall of the purification cylinder 1. The shaken dust particles can gradually fall down along these gaps to the bottom of the purification cylinder 1. Finally, the dust is collected for subsequent processing. After cleaning, the filter 3 is immediately restored to its original position under the action of the elastic element 4, and the air purification work is continued. There is no need to disassemble the filter 3, which simplifies the cleaning process and reduces the complexity and time cost of maintenance work.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage purification filter assembly for a full air conditioning system, characterized in that: include: A conical purification cylinder (1) is provided with an exhaust port (102) at a small end and an air inlet (103) at a large end; A plurality of conical filter screens (3) are arranged in the middle of the purification cylinder (1) and are spaced apart along the height direction of the purification cylinder (1); the areas of the plurality of filter screens (3) are different, and the areas of the plurality of filter screens (3) gradually increase from the small end to the large end of the purification cylinder (1); The elastic element (4) is configured to provide an elastic pre-tightening force from the large end of the purification cylinder (1) to the plurality of filter screens (3); and a driving member connected to the plurality of filter screens (3) and configured to intermittently provide the plurality of filter screens (3) with a pulling force opposite to the elastic preload force.

2. The multi-stage purification filter assembly for the full air conditioning system according to claim 1, characterized in that: The driving member is a pull rope (5), and the pull rope (5) connects the multiple filter screens (3) in series. The elastic element (4) includes a first compression spring (40) and a plurality of second compression springs (41). The first compression spring (40) is arranged between the filter screen (3) with the largest area and the purification cylinder (1), and a second compression spring (41) is arranged between each adjacent filter screen (3).

3. The multi-stage purification filter assembly for the full air conditioning system according to claim 2, characterized in that: The first end of the pull rope (5) moves through the filter screen (3) with the smallest area and is fixedly connected to a limit member (11); the second end of the pull rope (5) moves through the bottom of the purification cylinder (1) and is connected to a drive device (7); the drive device (7) is capable of intermittently providing a pulling force opposite to the elastic preload force to the second end of the pull rope (5).

4. The multi-stage purification filter assembly for the full air conditioning system according to claim 2, characterized in that: The driving device (7) comprises a crankshaft (70) and a motor (71) for driving the crankshaft (70) to rotate. The second end of the pull rope (5) is tied to the crankshaft (70), and the second end of the pull rope (5) is slidably connected to the crankshaft (70) when the crankshaft (70) rotates.

5. The multi-stage purification filter assembly for the full air conditioning system according to claim 3, characterized in that: The inner bottom of the purification cylinder (1) is provided with a sleeve (8), and the pull rope (5) is passed through the sleeve (8).

6. The multi-stage purification filter assembly for a full air conditioning system according to any one of claims 2 to 5, characterized in that: The invention also comprises a shielding component (9), wherein the shielding component (9) comprises a first plate (90) and a second plate (91), wherein the outer edge of the first plate (90) is fixed on the inner wall of the purification cylinder (1) below the air inlet (103), the middle of the first plate (90) has a central hole, the second plate (91) is located below the first plate (90) and can cover the central hole, and the second plate (91) is fixedly connected to the pull rope (5), and the first compression spring (40) is arranged between the filter screen (3) with the largest area and the purification cylinder (1) instead of being arranged between the filter screen (3) with the largest area and the second plate (91), and a third compression spring (42) is arranged between the second plate (91) and the purification cylinder (1).

7. The multi-stage purification filter assembly for the full air conditioning system according to claim 6, characterized in that: The purification cylinder (1) comprises a lower cylinder (101) located at its large end and an upper cylinder (100) located at its small end. The lower end opening of the lower cylinder (101) and the upper end opening of the upper cylinder (100) are connected to each other and are detachably fixedly connected via a buckle (2).

8. The multi-stage purification filter assembly for the full air conditioning system according to claim 7, characterized in that: The outer edge of the first plate body (90) is sandwiched between the lower end opening of the lower cylinder body (101) and the upper end opening of the upper cylinder body (100).

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