Integrated water supply and purification device

Abstract

The invention relates to the technical field of water supply and purification, and discloses an integrated water supply and purification device which comprises a base, the upper end of the base is fixedly connected with a shell, firstly, water is conveyed into a pretreatment cavity of the shell, and then large impurities in the water are filtered through a filtering mechanism in the pretreatment cavity; then common pollutants such as silt, rust and residual chlorine are further removed through the activated carbon filter element main body, then the water enters the main purification cavity, bacterial viruses and other fine particles are thoroughly filtered out through a nanofiltration membrane of the main purification cavity, mineral elements beneficial to the human body are reserved, then the water enters the post-treatment cavity to be disinfected, and finally the water enters the water storage tank; when the activated carbon filter element main body needs to be replaced, the activated carbon filter element main body is driven by the lifting mechanism to ascend, so that the activated carbon filter element main body is separated from the shell, the operation of disassembling the activated carbon filter element main body becomes simple, the maintenance time and labor cost of equipment are saved, and the overall operation cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of water supply and purification, and more specifically, it relates to an integrated water supply and purification device. Background Art

[0002] Current integrated water supply and purification devices usually integrate multiple functions such as water source supply, purification, storage, and water supply. The aim is to achieve the whole process from the introduction of water source, purification treatment, storage, and final water supply through a single device, providing a convenient and efficient water treatment solution. Such devices not only simplify the water treatment process but also ensure the safety and stable supply of water quality, and are widely used in different fields such as households, commerce, and industry.

[0003] Existing integrated water supply and purification devices have obvious limitations. For example, the pretreatment link of the reverse osmosis system has many steps, has strict requirements for the inlet water conditions, and generates a large amount of waste water; the activated carbon filter element needs to be replaced frequently, increasing the operation cost; the service life of the UV germicidal lamp tube is limited, and regular inspection and replacement are necessary, and it cannot remove non-biological pollutants. In addition, most existing water purifiers on the market adopt a separated design, that is, stages such as pretreatment, main purification, and post-treatment are completed by different modules respectively, resulting in a large overall volume, inconvenient installation, and not being convenient for mobile deployment. During the replacement process, since the activated carbon filter element is usually installed by passing bolts through the holes reserved in the box body and then adding nuts at both ends of the bolts, users need to spend a long time and effort to complete this process, thereby increasing the maintenance time and labor cost of the equipment and resulting in an increase in the overall operation cost.

[0004] Therefore, the present invention provides an integrated water supply and purification device. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0006] The present invention provides an integrated water supply and purification device, including a base, the upper end of the base is fixedly connected with a housing, a pretreatment chamber, a main purification chamber, and a post-treatment chamber are arranged in sequence inside the housing, the outer wall of the pretreatment chamber is fixedly connected with a lifting mechanism, an activated carbon filter element body is slidably connected inside the pretreatment chamber, a filtering mechanism is arranged inside the pretreatment chamber, and a water storage tank is fixedly connected to the end of the housing.

[0007] Preferably, the activated carbon filter element body includes a mounting frame slidably connected to the inner wall of the pretreatment chamber, an activated carbon filter plate is slidably connected to the inner wall of the mounting frame, and a slot is opened on one side of the mounting frame.

[0008] Preferably, the lifting mechanism includes a support plate fixedly connected to the outside of the housing. The upper end of the support plate is fixedly connected with a motor. The output end of the motor is fixedly connected with a lead screw. The upper end of the housing is fixedly connected with a limit block. The top end of the lead screw is rotatably connected to the bottom end of the limit block.

[0009] Preferably, a sliding block is sleeved on the outside of the lead screw. The upper end of the sliding block is fixedly connected with a connecting block. One side of the top end of the connecting block is fixedly connected with an insertion block. One end of the insertion block is slidably connected inside the insertion slot.

[0010] Preferably, an eccentric wheel is fixedly connected to the outside of the output end of the motor.

[0011] Preferably, the filtering mechanism includes a fixed frame fixedly connected to the inner wall body of the pretreatment chamber. Two groups of second return springs are fixedly connected to the side of the fixed frame away from the lifting mechanism. A filter screen is fixedly connected to the side of the second return spring away from the fixed frame. A connecting pipe is fixedly connected to the side of the filter screen away from the second return spring. The connecting pipe penetrates through the fixed frame and the housing. The connecting pipe is slidably connected to the fixed frame and the housing.

[0012] Preferably, a discharge groove is formed at a position of the bottom end of the housing close to the filter screen. A blocking block is slidably connected to the inner wall of the discharge groove.

[0013] Preferably, the base includes a bottom plate fixedly connected to the lower end of the body housing. The lower end of the bottom plate is rotatably connected to the top ends of a plurality of electric telescopic columns through universal joints. A fixing groove is formed in the upper end of the bottom plate. The fixing groove is aligned with the discharge groove.

[0014] Preferably, a water inlet pipe is fixedly connected to the outer wall of the upper end of the pretreatment chamber. A flow control valve is sleeved on the outside of the water inlet pipe. An ultraviolet lamp is fixedly connected to the inner wall of the upper end of the post-treatment chamber.

[0015] Preferably, a support pipe is fixedly connected to the side of the middle section of the connecting block facing the housing. A first magnet is fixedly connected to one side of the support pipe. Installation grooves are formed in the inner walls of the installation frame and the activated carbon filter plate. A first return spring is fixedly connected to the inner wall of the installation groove of the activated carbon filter plate. One end of the first return spring is fixedly connected with a positioning block. A second magnet is fixedly connected to one side of the positioning block. The first magnet and the second magnet repel each other.

[0016] The beneficial effects of the present invention are as follows: For an integrated water supply and purification device of the present invention, water is first transported to the pretreatment chamber of the housing, and then larger impurities in the water are filtered by the filtering mechanism in the pretreatment chamber. Then, common pollutants such as sediment, rust, and residual chlorine are further removed by the activated carbon filter element body, and then it enters the main purification chamber. The nanofiltration membrane in the main purification chamber completely filters out bacteria, viruses, and other fine particles and retains mineral elements beneficial to the human body. Then it enters the post-treatment chamber for disinfection, and finally enters the water storage tank. When it is necessary to replace the activated carbon filter element body, the lifting mechanism drives the activated carbon filter element body to rise, so that the activated carbon filter element body is separated from the housing, making the operation of disassembling the activated carbon filter element body simple, thus saving the maintenance time and labor cost of the equipment, and reducing the overall operation cost.

[0017] For an integrated water supply and purification device of the present invention, by starting the motor, the motor drives the screw rod to rotate, so that the limit sliding block slides on the screw rod, thereby driving the plug block connected to the sliding block through the connecting block to move upward, making the plug block drive the installation frame to move upward, so that the installation frame drives the activated carbon filter plate to separate from the housing, and then moving the installation frame in the direction opposite to the plug block, so that the installation frame disengages from the plug block. Through this process, users can easily disassemble the activated carbon filter element body. This innovative design greatly simplifies the disassembly process of the activated carbon filter element body, effectively saves the maintenance time of the equipment, reduces the required labor cost, and also reduces the overall operation cost of the equipment during long-term use, improving the convenience and economy of the equipment.

[0018] For an integrated water supply and purification device of the present invention, when the motor is started, the motor drives the eccentric wheel to rotate, so that the eccentric wheel strikes the connecting pipe, making the connecting pipe push the filter net to move leftward. The width of the filter net is the same as the width of the fixed frame, and both sides of the filter net are also located inside the inner wall of the pretreatment chamber, and the filter net will not disengage from the inner wall of the pretreatment chamber when shaking left and right, thus preventing impurities from passing through between the fixed frame and the filter net. When the eccentric wheel disengages from the connecting pipe, the second return spring will reset, thereby pushing the filter net to move rightward, making the filter net shake left and right, causing the impurities on the filter net to fall off. At the same time, the block is pulled to open the discharge groove, so that the impurities are separated from the housing, which can improve the filtering effect of the filter net during subsequent use.

[0019] An integrated water supply and purification device according to the present invention starts the electric telescopic column, which drives the bottom plate to rise, making the bottom plate gradually tilt, and then the whole housing is in an inclined state. This design makes the flow of water inside the housing smoother, and can more precisely control the flow rate of water in the pretreatment chamber, main purification chamber and post-treatment chamber. Water is introduced into the pretreatment chamber of the housing through the water inlet pipe. Subsequently, the flow control valve can adjust the speed of the water flow to ensure that the water flow reaches the ideal treatment effect. At the same time, the ultraviolet lamp can effectively disinfect the water when the water flows through, ensuring that the water quality meets the safety standards, so as to achieve the comprehensive purification and disinfection of the water source. This design not only optimizes the control of the water flow, improves the treatment efficiency of each chamber, but also enhances the operation convenience and water quality guarantee of the whole system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a perspective view of an embodiment of the present invention; Figure 2 is a schematic structural view of the base in the present invention; Figure 3 is a semi-sectional structural view of the housing in the present invention; Figure 4 is a schematic structural view of the lifting mechanism in the present invention; Figure 5 is a schematic structural view of the activated carbon filter element main body in the present invention; Figure 6 is a schematic structural view of the filtering mechanism in the present invention; Figure 7 is a semi-sectional structural view of the activated carbon filter element main body in the present invention.

[0021] In the figure: 100, base; 101, bottom plate; 102, fixed groove; 103, electric telescopic column; 200, housing; 201, pretreatment chamber; 202, water inlet pipe; 203, flow control valve; 204, main purification chamber; 205, post-treatment chamber; 206, ultraviolet lamp; 207, water storage tank; 300, lifting mechanism; 301, support plate; 302, motor; 303, eccentric wheel; 304, lead screw; 305, sliding block; 306, connecting block; 307, insertion block; 308, limiting block; 309, support tube; 310, first magnet; 400, activated carbon filter element main body; 401, installation frame; 402, activated carbon filter plate; 403, slot; 404, installation groove; 405, first return spring; 406, positioning block; 407, second magnet; 500, filtering mechanism; 501, fixed frame; 502, second return spring; 503, filter net; 504, connecting pipe; 505, stop block; 506, discharge groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Reference will now be made to example embodiments to discuss the subject matter described herein. It should be understood that discussing these embodiments is only to enable those skilled in the art to better understand and thus implement the subject matter described herein. Without departing from the scope of protection of the content of this specification, changes can be made to the functions and arrangements of the elements discussed. Each example can omit, substitute, or add various processes or components as needed. Additionally, the features described relative to some examples can also be combined in other examples.

[0023] Embodiment As Figures 1 to 6 shown, an integrated water supply and purification device according to an embodiment of the present invention is shown. Please refer specifically to Figure 1 , Figure 3 , which includes a base 100. A housing 200 is fixedly connected to the upper end of the base 100. A pretreatment chamber 201, a main purification chamber 204, and a post-treatment chamber 205 are formed inside the housing 200. The pretreatment chamber 201, the main purification chamber 204, and the post-treatment chamber 205 are arranged in sequence. A lifting mechanism 300 is fixedly connected to the outer wall of the pretreatment chamber 201. An activated carbon filter element body 400 is slidably connected inside the pretreatment chamber 201. A filtering mechanism 500 is arranged inside the pretreatment chamber 201. A water storage tank 207 is fixedly connected to the end of the housing 200.

[0024] Specifically, first, water is transported into the pretreatment chamber 201 of the housing 200. Then, the larger impurities in the water are filtered by the filtering mechanism 500 inside the pretreatment chamber 201. The activated carbon filter element body 400 further removes common pollutants such as sediment, rust, and residual chlorine. Then, it enters the main purification chamber 204. The nanofiltration membrane in the main purification chamber 204 completely filters out bacteria, viruses, and other fine particles and retains the mineral elements beneficial to the human body. Then, it enters the post-treatment chamber 205 for disinfection. Finally, it enters the water storage tank 207. When it is necessary to replace the activated carbon filter element body 400, the lifting mechanism 300 drives the activated carbon filter element body 400 to rise, so that the activated carbon filter element body 400 is separated from the housing 200, making the operation of disassembling the activated carbon filter element body 400 simple, thus saving the maintenance time and labor cost of the equipment and reducing the overall operation cost.

[0025] Please refer specifically to Figure 4 , Figure 5, the activated carbon filter element main body 400 includes a mounting frame 401 slidably connected to the inner wall of the pretreatment chamber 201. A sealing ring is provided at the connection between the activated carbon filter element main body 400 and the upper surface of the housing 200. The inner wall of the mounting frame 401 is slidably connected with an activated carbon filter element plate 402. A slot 403 is opened on one side of the mounting frame 401. The lifting mechanism 300 includes a support plate 301 fixedly connected to the outside of the housing 200. The upper end of the support plate 301 is fixedly connected with a motor 302. The output end of the motor 302 is fixedly connected with a lead screw 304. The upper end of the housing 200 is fixedly connected with a limit block 308. The top end of the lead screw 304 is rotatably connected to the bottom end of the limit block 308. A sliding block 305 is sleeved on the outside of the lead screw 304. The upper end of the sliding block 305 is fixedly connected with a connecting block 306. One side of the top end of the connecting block 306 is fixedly connected with an insertion block 307. One end of the insertion block 307 is slidably connected inside the slot 403. One side of the middle section of the connecting block 306 facing the housing 200 is fixedly connected with a support tube 309. One side of the support tube 309 is fixedly connected with a first magnet 310. Installation grooves 404 are opened on the inner walls of the mounting frame 401 and the activated carbon filter element plate 402. A first return spring 405 is fixedly connected to the inner wall of the installation groove 404 of the activated carbon filter element plate 402. One end of the first return spring 405 is fixedly connected with a positioning block 406. One side of the positioning block 406 is fixedly connected with a second magnet 407. The first magnet 310 and the second magnet 407 repel each other.

[0026] Specifically, by starting the motor 302, the motor 302 drives the lead screw 304 to rotate, causing the sliding block 305 to slide on the lead screw 304, thereby driving the insertion block 307 connected to the sliding block 305 through the connecting block 306 to move upward. The insertion block 307 drives the mounting frame 401 to move upward, causing the mounting frame 401 to drive the activated carbon filter element plate 402 to disengage from the housing 200, so that there is no housing 200 blocking between the first magnet 310 and the second magnet 407. The repulsive force between the first magnet 310 and the second magnet 407 pushes the second magnet 407 to move. Thus, the positioning block 406 driven by the second magnet 407 moves from the installation groove 404 of the mounting frame 401 to the installation groove 404 of the activated carbon filter element plate 402, causing the activated carbon filter element plate 402 to disengage from the mounting frame 401. Then, the mounting frame 401 is moved in the direction opposite to the insertion block 307, causing the mounting frame 401 to disengage from the insertion block 307. Through this process, the user can easily disassemble the activated carbon filter element main body 400. This innovative design greatly simplifies the disassembly process of the activated carbon filter element main body 400, effectively saves the maintenance time of the equipment, reduces the required labor cost, and also reduces the overall operation cost of the equipment during long-term use, improving the convenience and economy of the equipment.

[0027] Please refer specifically to Figure 4 , Figure 6An eccentric wheel 303 is fixedly connected to the outer side of the output end of the motor 302, and the filtering mechanism 500 includes a fixed frame 501 fixedly connected to the inner wall of the pretreatment chamber 201, and two sets of second return springs 502 are fixedly connected to the side of the fixed frame 501 away from the lifting mechanism 300, and a filter screen 503 is fixedly connected to the side of the second return spring 502 away from the fixed frame 501, and a connecting pipe 504 is fixedly connected to the side of the filter screen 503 away from the second return spring 502, and the connecting pipe 504 runs through the fixed frame 501 and the shell 200, and the connecting pipe 504 is slidably connected to the fixed frame 501 and the shell 200, and a sealing ring is arranged on the outer side of the connecting pipe 504, and a discharge groove 506 is opened at the bottom end of the shell 200 near the filter screen 503, and a stopper 505 is slidably connected to the inner wall of the discharge groove 506.

[0028] Specifically, when the motor 302 is started, the motor 302 will drive the eccentric wheel 303 to rotate, so that the eccentric wheel 303 hits the connecting pipe 504, so that the connecting pipe 504 pushes the filter screen 503 to move to the left. The width of the filter screen 503 is consistent with the width of the fixed frame 501, and the two sides of the filter screen 503 are also located in the inner wall body of the pretreatment chamber 201, and the filter screen 503 will not separate from the inner wall body of the pretreatment chamber 201 when shaking left and right, thereby preventing impurities from passing through between the fixed frame 501 and the filter screen 503. When the eccentric wheel 303 is separated from the connecting pipe 504, the second return spring 502 will be reset, thereby pushing the filter screen 503 to move to the right, causing the filter screen 503 to shake left and right, causing impurities on the filter screen 503 to fall off, and at the same time pulling the stopper 505 to open the discharge slot 506, so that the impurities are separated from the shell 200, thereby improving the filtering effect of the filter screen 503 during subsequent use.

[0029] Please refer to Figure 2 , Figure 3 The base 100 includes a bottom plate 101 fixedly connected to the lower end of the shell 200, the lower end of the bottom plate 101 is rotatably connected to the top ends of multiple electric telescopic columns 103 through a universal joint, a fixing groove 102 is opened at the upper end of the bottom plate 101, and the fixing groove 102 is aligned with the discharge groove 506. The outer wall of the upper end of the pre-treatment chamber 201 is fixedly connected to the water inlet pipe 202, and the outer side of the water inlet pipe 202 is sleeved with a flow control valve 203, and the inner wall of the upper end of the post-treatment chamber 205 is fixedly connected to the ultraviolet lamp 206.

[0030] Specifically, by starting the electric telescopic column 103, the electric telescopic column 103 drives the bottom plate 101 to rise, so that the bottom plate 101 gradually tilts, and then the shell 200 is tilted as a whole. This design makes the flow of water inside the shell 200 smoother, and can more accurately control the flow rate of water in the pretreatment chamber 201, the main purification chamber 204 and the post-treatment chamber 205. Water is introduced into the pretreatment chamber 201 of the shell 200 through the water inlet pipe 202, and then the flow control valve 203 can adjust the speed of the water flow to ensure that the water flow achieves the ideal treatment effect. At the same time, the ultraviolet lamp 206 can effectively disinfect the water when the water flows through. When the disinfection is completed after a sufficient time, the water storage tank 207 is opened for storage to ensure that the water quality meets the safety standards, thereby achieving comprehensive purification and disinfection of the water source. This design not only optimizes the control of the water flow and improves the processing efficiency of each chamber, but also enhances the operational convenience and water quality assurance of the entire system.

[0031] Working principle, In the initial state, water is introduced into the pre-treatment chamber 201 of the shell 200 through the water inlet pipe 202, and then the flow control valve 203 can adjust the speed of the water flow, and by starting the electric telescopic column 103, the electric telescopic column 103 drives the bottom plate 101 to rise, so that the bottom plate 101 gradually tilts, so that the shell 200 is in a tilted state as a whole, and then the water is preliminarily filtered through the filter mesh 503, and then further removed by the activated carbon filter body 400 Common pollutants such as mud, rust, and residual chlorine, and then enter the main purification chamber 204, and the nanofiltration membrane of the main purification chamber 204 is used to thoroughly filter out bacteria, viruses and other fine particles and retain mineral elements beneficial to the human body, and then enter the post-treatment chamber 205, disinfected by the ultraviolet lamp 206, and finally enter the water storage tank 207. When it is necessary to replace the activated carbon filter body 400, the motor 302 is started, so that the motor 302 drives the screw rod 304 to rotate, so that The limited sliding block 305 slides on the screw rod 304, thereby driving the plug block 307 connected to the sliding block 305 through the connecting block 306 to move upward, so that the plug block 307 drives the installation frame 401 to move upward, so that the installation frame 401 drives the activated carbon filter element plate 402 to separate from the housing 200, and then the installation frame 401 is moved in the opposite direction to the plug block 307, so that the installation frame 401 is separated from the plug block 307. When the motor 302 is started, the motor 302 will drive the eccentric wheel 303 to move upward. The eccentric wheel 303 rotates, so that the eccentric wheel 303 hits the connecting pipe 504, so that the connecting pipe 504 pushes the filter screen 503 to move to the left. When the eccentric wheel 303 is separated from the connecting pipe 504, the second reset spring 502 is reset, thereby pushing the filter screen 503 to move to the right, so that the filter screen 503 shakes left and right, and impurities on the filter screen 503 fall off. At the same time, the stopper 505 is pulled to open the discharge slot 506, so that the impurities are separated from the shell 200.

[0032] The above embodiments of the specific implementation manners have been described. However, these embodiments are not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative rather than restrictive. Under the inspiration of these embodiments, those of ordinary skill in the art can also make many forms, all of which fall within the protection scope of these embodiments.

Claims

1. An integrated water supply and purification device, characterized in that: The invention comprises a base (100), the upper end of the base (100) being fixedly connected to a shell (200), the interior of the shell (200) being provided with a pre-treatment chamber (201), a main purification chamber (204) and a post-treatment chamber (205), the pre-treatment chamber (201), the main purification chamber (204) and the post-treatment chamber (205) being arranged in sequence, the outer wall of the pre-treatment chamber (201) being fixedly connected to a lifting mechanism (300), the interior of the pre-treatment chamber (201) being slidably connected to an activated carbon filter element body (400), the interior of the pre-treatment chamber (201) being provided with a filtering mechanism (500), and the end of the shell (200) being fixedly connected to a water storage tank (207).

2. The integrated water supply and purification device according to claim 1, characterized in that: The activated carbon filter element body (400) comprises a mounting frame (401) slidably connected to the inner wall of the pretreatment chamber (201), an activated carbon filter element plate (402) being slidably connected to the inner wall of the mounting frame (401), and a slot (403) is provided on one side of the mounting frame (401).

3. The integrated water supply and purification device according to claim 2, characterized in that: The lifting mechanism (300) comprises a support plate (301) fixedly connected to the outside of the housing (200); the upper end of the support plate (301) is fixedly connected to a motor (302); the output end of the motor (302) is fixedly connected to a lead screw (304); the upper end of the housing (200) is fixedly connected to a limit block (308); the top end of the lead screw (304) is rotatably connected to the bottom end of the limit block (308).

4. The integrated water supply and purification device according to claim 3, characterized in that: A sliding block (305) is sleeved on the outer side of the screw rod (304); a connecting block (306) is fixedly connected to the upper end of the sliding block (305); an inserting block (307) is fixedly connected to one side of the top end of the connecting block (306); and one end of the inserting block (307) is slidably connected to the inside of the slot (403).

5. The integrated water supply and purification device according to claim 4, characterized in that: An eccentric wheel (303) is fixedly connected to the outer side of the output end of the motor (302).

6. The integrated water supply and purification device according to claim 1, characterized in that: The filtering mechanism (500) comprises a fixed frame (501) fixedly connected to the inner wall of the pretreatment chamber (201); two groups of second return springs (502) are fixedly connected to the side of the fixed frame (501) away from the lifting mechanism (300); a filter screen (503) is fixedly connected to the side of the second return spring (502) away from the fixed frame (501); a connecting pipe (504) is fixedly connected to the side of the filter screen (503) away from the second return spring (502); the connecting pipe (504) passes through the fixed frame (501) and the shell (200); and the connecting pipe (504) is slidably connected to the fixed frame (501) and the shell (200).

7. The integrated water supply and purification device according to claim 6, characterized in that: A discharge groove (506) is provided at the bottom end of the housing (200) near the filter screen (503), and a stopper (505) is slidably connected to the inner wall of the discharge groove (506).

8. The integrated water supply and purification device according to claim 1, characterized in that: The base (100) comprises a bottom plate (101) fixedly connected to the lower end of the shell (200); the lower end of the bottom plate (101) is rotatably connected to the top ends of a plurality of electric telescopic columns (103) via a universal joint; a fixing groove (102) is provided at the upper end of the bottom plate (101); the fixing groove (102) is aligned with the discharge groove (506).

9. The integrated water supply and purification device according to claim 1, characterized in that: The outer wall at the upper end of the pre-treatment chamber (201) is fixedly connected to a water inlet pipe (202), the outer side of the water inlet pipe (202) is sleeved with a flow control valve (203), and the inner wall at the upper end of the post-treatment chamber (205) is fixedly connected to an ultraviolet lamp (206).

10. The integrated water supply and purification device according to claim 4, characterized in that: A support tube (309) is fixedly connected to a side of the middle section of the connection block (306) facing the housing (200), a first magnet (310) is fixedly connected to one side of the support tube (309), a mounting groove (404) is provided on the inner walls of the mounting frame (401) and the activated carbon filter element plate (402), a first return spring (405) is fixedly connected to the inner wall of the mounting groove (404) of the activated carbon filter element plate (402), one end of the first return spring (405) is fixedly connected to a positioning block (406), one side of the positioning block (406) is fixedly connected to a second magnet (407), and the first magnet (310) and the second magnet (407) repel each other.

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