Multi-stage purification and fine filtration device for mineral water

Abstract

The utility model provides a mineral water multi-stage purification fine filtration device, which belongs to the field of mineral water purification and comprises a tank body, a filter mechanism is arranged on one side of the tank body, a detection component is arranged on one side of the tank body, and a sterilization component is arranged on one side of the filter mechanism. Through the arranged filtering mechanism, the speed of water flowing into the tank body is controlled, the filtering effect is improved, the water flowing into the tank body can be pretreated and filtered through the PP cotton filter element, the first water pump, the water inlet pipe and the water injection pipe are used in cooperation, the speed of external water flowing into the tank body can be controlled, and the filtering effect is improved. The filtering effect of the PP cotton filter element is improved, impurities contained in water can be intercepted through a refined filtration membrane in the refined filtration assembly, and the water quality is improved.

Description

Technical Field

[0001] The utility model relates to the field of mineral water purification, in particular to a multi-stage purification and fine filtering device for mineral water. Background Art

[0002] Mineral water is drinking water containing minerals, trace elements or other substances. After taking water from the source, it cannot be consumed directly. It requires multi-stage purification and filtration to filter out particulate matter and impurities.

[0003] After searching, in the prior art, the Chinese patent with patent announcement number CN217809017U discloses "a multi-stage purification and fine filtration device for mineral water, including a box body, a through hole is opened on the surface of the box body, a movable plate is arranged in the through hole, and a movable bin is arranged in the box body. By setting a first bevel gear and a threaded column, when people need to move the movable plate, they only need to rotate the turntable, thereby driving the first rotating shaft to rotate, and at the same time driving the first bevel gear to rotate. Under the mutual kneading of the first bevel gear and the second bevel gear, the second rotating shaft can be driven to rotate, and at the same time, the threaded column can be driven to rotate. Under the interaction of the threaded column and the threaded tube, the clamping rod can be driven to move, and the clamping rod can be separated from the first clamping groove, and the movable plate can be moved. Under the joint action of the first bevel gear and the threaded column, people can move the movable plate more quickly." However, the following defects still exist:

[0004] When it is in use, it is impossible to control the water flow entering the box. A large amount of water flows into the box for filtration at the same time, which can easily lead to insufficient filtration. Impurities and pollutants in the water cannot be effectively retained, thereby reducing the filtration effect.

[0005] Therefore, we have made improvements to this and proposed a multi-stage purification and fine filtration device for mineral water. Summary of the invention

[0006] The purpose of the utility model is to address the current problem that the water flow entering the box cannot be controlled. A large amount of water flows into the box for filtration at the same time, which easily leads to insufficient filtration and the impurities and pollutants in the water cannot be effectively intercepted, thereby reducing the filtration effect.

[0007] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0008] The multi-stage purification and fine filtration device for mineral water can improve the above problems.

[0009] The utility model is as follows:

[0010] It comprises a tank body, a filtering mechanism is arranged on one side of the tank body, a detection component is arranged on one side of the tank body, and a sterilization component is arranged on one side of the filtering mechanism;

[0011] The filtering mechanism includes a first cover plate, a placement frame, a leakage hole, a fixing plate, bolts, an extension frame, a PP cotton filter element, a first water pump, a water inlet pipe, a water injection pipe and a fine filter assembly. The first cover plate is bolted to the top of the tank body, the placement frame is arranged at the top of the first cover plate, the bottom of the placement frame extends to the interior of the tank body, a plurality of the leakage holes are opened in the interior of the placement frame, the fixing plate is arranged at the top of the placement frame, a plurality of the bolts are threadedly connected to the interior of the fixing plate, the bottom of the bolts passes through the top of the placement frame and extends to the interior of the first cover plate, the extension frame is fixedly connected to the bottom of the fixing plate, the PP cotton filter element is arranged on the inner wall of the extension frame, the first water pump is arranged at the top of the first cover plate, the water inlet pipe is arranged at the input end of the first water pump, the water injection pipe is arranged at the output end of the first water pump, and one end of the water injection pipe extends to the interior of the extension frame.

[0012] As a preferred technical solution of the utility model, the fine filtration assembly includes a fine filtration tank, a second cover plate, a second water pump, a first extraction pipe, a first injection pipe, a support frame and a fine filtration membrane, the fine filtration tank is arranged on one side of the tank body, the second cover plate is bolted to the top of the fine filtration tank, the second water pump is arranged on the top of the second cover plate, the first extraction pipe is arranged at the input end of the second water pump, one end of the first extraction pipe is fixedly connected to one side of the tank body and communicated with the interior of the tank body, the first injection pipe is arranged at the output end of the second water pump, the support frame is fixedly connected to the inner wall of the fine filtration tank, and the fine filtration membrane is arranged on the inner bottom wall of the support frame.

[0013] As a preferred technical solution of the utility model, the detection component includes a first mounting frame, a first photoelectric liquid level sensor, a first photoelectric probe and a first controller, the first mounting frame is bolted to the outer wall of the tank body, the first photoelectric liquid level sensor is arranged on the inner bottom wall of the first mounting frame, the first photoelectric probe is arranged on one side of the first photoelectric liquid level sensor, one end of the first photoelectric probe extends to the interior of the tank body, the first controller is arranged on the inner top wall of the first mounting frame, the first photoelectric liquid level sensor is electrically connected to the first controller, and the first controller is electrically connected to the first water pump.

[0014] As a preferred technical solution of the utility model, the sterilization assembly includes a sterilization tank, a third cover plate, a third water pump, a second extraction pipe, a second injection pipe, a glass frame, a mounting plate and an ultraviolet lamp. The sterilization tank is arranged on one side of the fine filtration tank, the third cover plate is bolted to the top of the sterilization tank, the third water pump is arranged on the top of the third cover plate, the second extraction pipe is arranged at the input end of the third water pump, the second injection pipe is arranged at the output end of the third water pump, the glass frame is bolted to the top of the third cover plate, the bottom of the glass frame extends to the interior of the sterilization tank, the mounting plate is bolted to the top of the glass frame, and the ultraviolet lamp is arranged at the bottom of the mounting plate and is located inside the glass frame.

[0015] As a preferred technical solution of the utility model, a second mounting frame is bolted to the outer wall of the fine filter tank, a second photoelectric liquid level sensor is arranged on the inner top wall of the second mounting frame, a second photoelectric probe is arranged on one side of the second photoelectric liquid level sensor, one end of the second photoelectric probe extends to the interior of the fine filter tank, a second controller is arranged on the inner bottom wall of the second mounting frame, the second controller is electrically connected to the second photoelectric liquid level sensor, and the second controller is electrically connected to the second water pump.

[0016] As a preferred technical solution of the utility model, the top of the third cover plate is fixedly connected with an internal threaded sleeve, the inner wall of the internal threaded sleeve is threadedly connected with a threaded column, the top of the threaded column is fixedly connected with a rotating plate, the bottom of the threaded column is fixedly connected with an extension rod, and the bottom of the extension rod is fixedly connected with an extraction frame.

[0017] As a preferred technical solution of the utility model, a transmission pipe is fixedly connected to one side of the sterilization tank, a fourth water pump is arranged on one side of the transmission pipe, and a discharge pipe is arranged at the output end of the fourth water pump.

[0018] As a preferred technical solution of the utility model, activated carbon is arranged on the inner bottom wall of the placement frame, and the activated carbon is located at the top of the leakage hole and fits with the inner wall of the placement frame.

[0019] As a preferred technical solution of the utility model, the inner wall of the placement frame is provided with quartz sand, and the quartz sand is located on the top of the activated carbon.

[0020] As a preferred technical solution of the utility model, an observation port is provided inside the sterilization tank, and the inner wall of the observation port is provided with tempered glass.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] In the solution of the utility model:

[0023] By setting up the filtering mechanism, it is possible to control the water flow rate entering the tank body and improve the filtering effect. The PP cotton filter element can be used to pre-treat and filter the water flow entering the tank body. The first water pump, the water inlet pipe and the water injection pipe are used together to control the speed of the external water flow entering the tank body and improve the filtering effect of the PP cotton filter element. The fine filter membrane in the fine filter component can intercept impurities contained in the water and improve the water quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of the multi-stage purification and fine filtration device for mineral water provided by the utility model;

[0025] Figure 2 It is a right side cross-sectional structural schematic diagram of the multi-stage purification and fine filtration device for mineral water provided by the utility model;

[0026] Figure 3 This is a schematic cross-sectional structure diagram of the filtering mechanism in the multi-stage mineral water purification fine filtering device provided by the utility model;

[0027] Figure 4 This is a schematic cross-sectional structure diagram of a fine filtration component in a multi-stage mineral water purification fine filtration device provided by the utility model;

[0028] Figure 5 This is a schematic cross-sectional structure diagram of a sterilization component in a multi-stage mineral water purification and fine filtration device provided by the utility model;

[0029] Figure 6 The utility model provides a schematic diagram of the cross-sectional structure of the observation port and the tempered glass in the multi-stage purification and fine filtration device for mineral water.

[0030] Indicated in the figure:

[0031] 1. Tank body; 2. Filter mechanism; 3. Detection component; 4. Sterilization component; 201. First cover plate; 202. Placement frame; 203. Leakage hole; 204. Fixing plate; 205. Bolt; 206. Extension frame; 207. PP cotton filter element; 208. First water pump; 209. Water inlet pipe; 210. Water injection pipe; 211. Fine filter component; 2111. Fine filter tank; 2112. Second cover plate; 2113. Second water pump; 2114. First extraction pipe; 2115. First injection pipe; 2116. Support frame; 2117. Fine filter membrane; 301. First installation frame; 302. First photoelectric liquid level sensor; 303 , the first photoelectric probe; 304, the first controller; 401, the sterilization tank; 402, the third cover plate; 403, the third water pump; 404, the second extraction pipe; 405, the second injection pipe; 406, the glass frame; 407, the mounting plate; 408, the ultraviolet lamp; 5, the second mounting frame; 6, the second photoelectric liquid level sensor; 7, the second photoelectric probe; 8, the second controller; 9, the internal threaded sleeve; 10, the threaded column; 11, the rotating plate; 12, the extension rod; 13, the extraction frame; 14, the transmission pipe; 15, the fourth water pump; 16, the discharge pipe; 17, the activated carbon; 18, the quartz sand; 19, the observation port; 20, the tempered glass. DETAILED DESCRIPTION

[0032] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0033] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention to be protected, but merely represents some embodiments of the present invention. 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.

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] like Figure 1-6 As shown, this embodiment proposes a multi-stage purification and fine filtration device for mineral water, comprising a tank body 1, a filtering mechanism 2 is arranged on one side of the tank body 1, a detection component 3 is arranged on one side of the tank body 1, and a sterilization component 4 is arranged on one side of the filtering mechanism 2;

[0037] like Figure 3 As shown, the filtering mechanism 2 includes a first cover plate 201, a placement frame 202, a leakage hole 203, a fixing plate 204, a bolt 205, an extension frame 206, a PP cotton filter element 207, a first water pump 208, a water inlet pipe 209, a water injection pipe 210 and a fine filter assembly 211. The first cover plate 201 is bolted to the top of the tank body 1, the placement frame 202 is arranged on the top of the first cover plate 201, the bottom of the placement frame 202 extends to the inside of the tank body 1, and multiple leakage holes 203 are opened in the placement frame 2 02, a fixing plate 204 is arranged on the top of the placing frame 202, a plurality of bolts 205 are all threadedly connected to the inside of the fixing plate 204, the bottom of the bolts 205 passes through the top of the placing frame 202 and extends to the inside of the first cover plate 201, an extension frame 206 is fixedly connected to the bottom of the fixing plate 204, a PP cotton filter element 207 is arranged on the inner wall of the extension frame 206, a first water pump 208 is arranged on the top of the first cover plate 201, and a water inlet pipe 209 is arranged on the first water pump 208 The first water pump 208 is connected to the input end of the water injection pipe 210, and one end of the water injection pipe 210 extends to the inside of the extension frame 206. The first water pump 208 is started to extract the external water source from the water inlet pipe 209 and inject it into the tank body 1 after passing through the water injection pipe 210. The water flow after entering the tank body 1 will first enter the extension frame 206 and be intercepted by the PP cotton filter element 207. The PP cotton filter element 207 can remove large particles of impurities in the water flow for pretreatment. The processed water flow will fall into the placement frame 202, and finally fall to the bottom of the tank body 1 through the leakage hole 203. When the PP cotton filter element 207 needs to be replaced, the water pump can be first released, and then the bolts 205 can be screwed out, and the fixing plate 204 and the extension frame 206 can be taken out to replace the PP cotton filter element 207. In this process, the speed and flow rate of water entering the tank body 1 can be controlled by the first water pump 208, thereby improving the filtering effect of the PP cotton filter element 207 on the water flow.

[0038] like Figure 4As shown, the fine filtration component 211 includes a fine filtration tank 2111, a second cover plate 2112, a second water pump 2113, a first extraction pipe 2114, a first injection pipe 2115, a support frame 2116 and a fine filtration membrane 2117, the fine filtration tank 2111 is arranged on one side of the tank body 1, the second cover plate 2112 is bolted to the top of the fine filtration tank 2111, the second water pump 2113 is arranged on the top of the second cover plate 2112, the first extraction pipe 2114 is arranged at the input end of the second water pump 2113, one end of the first extraction pipe 2114 is fixedly connected to one side of the tank body 1 and is connected to the inside of the tank body 1, and the first injection pipe 2115 is arranged at the second water At the output end of the pump 2113, the support frame 2116 is fixedly connected to the inner wall of the fine filtration tank 2111, and the fine filtration membrane 2117 is arranged on the inner bottom wall of the support frame 2116. When the second water pump 2113 is started, the filtered water accumulated at the bottom of the tank body 1 can be extracted, and after passing through the first extraction pipe 2114, it is injected into the fine filtration tank 2111 from the first injection pipe 2115. The water flow entering the fine filtration tank 2111 will be intercepted by the fine filtration membrane 2117 in the support frame 2116 to remove tiny particles and bacteria in the water and improve the water quality. The fine filtration membrane 2117 can be maintained or replaced later by opening the second cover plate 2112.

[0039] like Figure 3 As shown, the detection component 3 includes a first installation frame 301, a first photoelectric liquid level sensor 302, a first photoelectric probe 303 and a first controller 304. The first installation frame 301 is bolted to the outer wall of the tank body 1, the first photoelectric liquid level sensor 302 is arranged on the inner bottom wall of the first installation frame 301, the first photoelectric probe 303 is arranged on one side of the first photoelectric liquid level sensor 302, one end of the first photoelectric probe 303 extends to the inside of the tank body 1, and the first controller 304 is arranged on the inner top wall of the first installation frame 301. The first photoelectric liquid level sensor 302 is electrically connected to the first controller 304, and the first controller 304 is electrically connected to the first water pump 208. When the PP cotton filter element 207 works normally, The water flow will accumulate at the bottom of the tank body 1 and continue to rise and contact the first photoelectric probe 303 on the first photoelectric liquid level sensor 302. After being pumped by the second water pump 2113, the water level will remain flat and stable, allowing the first photoelectric probe 303 to always detect the water flow. When the PP cotton filter element 207 is used for a long time, it will become blocked and intercept the water flow, causing the water level inside the tank body 1 to drop. After the first photoelectric probe 303 detects the drop in water level, it will transmit a signal to the first controller 304 through the first photoelectric liquid level sensor 302. The first controller 304 will control the first water pump 208 to stop extracting external water flow to prevent waste of water resources and allow staff to replace the PP cotton filter element 207 in time.

[0040] like Figure 5As shown, the sterilization assembly 4 includes a sterilization tank 401, a third cover plate 402, a third water pump 403, a second extraction pipe 404, a second injection pipe 405, a glass frame 406, a mounting plate 407 and an ultraviolet lamp 408. The sterilization tank 401 is arranged on one side of the fine filtration tank 2111, the third cover plate 402 is bolted to the top of the sterilization tank 401, the third water pump 403 is arranged on the top of the third cover plate 402, the second extraction pipe 404 is arranged at the input end of the third water pump 403, the second injection pipe 405 is arranged at the output end of the third water pump 403, the glass frame 406 is bolted to the top of the third cover plate 402, and the bottom of the glass frame 406 extends to the sterilization tank 401. , the mounting plate 407 is bolted to the top of the glass frame 406, the ultraviolet lamp 408 is arranged at the bottom of the mounting plate 407 and is located inside the glass frame 406, the glass frame 406 is fixed in the sterilization tank 401, and then the ultraviolet lamp 408 is fixed on the mounting plate 407, and finally the mounting plate 407 is fixed above the glass frame 406, and the third water pump 403 is started, the purified water flow in the fine filter tank 2111 can be drawn into the second extraction pipe 404, and injected into the sterilization tank 401 after passing through the second injection pipe 405, and the ultraviolet lamp 408 is turned on, so that the light source passes through the glass frame 406 to continuously irradiate and sterilize the water flow in the sterilization tank 401.

[0041] like Figure 4 As shown, the outer wall of the fine filter tank 2111 is bolted with a second mounting frame 5, the inner top wall of the second mounting frame 5 is provided with a second photoelectric liquid level sensor 6, one side of the second photoelectric liquid level sensor 6 is provided with a second photoelectric probe 7, one end of the second photoelectric probe 7 extends to the interior of the fine filter tank 2111, and the inner bottom wall of the second mounting frame 5 is provided with a second controller 8, the second controller 8 is electrically connected to the second photoelectric liquid level sensor 6, the second controller 8 is electrically connected to the second water pump 2113, and the water flow entering the fine filter tank 2111 will accumulate at the bottom of the fine filter tank 2111 after being purified by the fine filter membrane 2117, and will continue to rise until it submerges the second photoelectric probe 7. After being pumped by the third water pump 403, the water level will remain stable. When the fine filter membrane 2117 is blocked, the water level will drop. After the second photoelectric probe 7 detects the drop in water level, it will transmit a signal to the second controller 8 through the second photoelectric liquid level sensor 6, and the second controller 8 will control the second water pump 2113 to stop pumping water, so that the staff can replace the fine filter membrane 2117 in time.

[0042] like Figure 5As shown, the top of the third cover plate 402 is fixedly connected with an internal threaded sleeve 9, the inner wall of the internal threaded sleeve 9 is threadedly connected with a threaded column 10, the top of the threaded column 10 is fixedly connected with a rotating plate 11, the bottom of the threaded column 10 is fixedly connected with an extension rod 12, and the bottom of the extension rod 12 is fixedly connected with an extraction frame 13. By rotating the rotating plate 11, the threaded column 10 can be separated from the internal threaded sleeve 9 and continue to rise. The staff can pull out the extension rod 12 and determine whether the water quality is qualified by detecting the water in the extraction frame 13.

[0043] like Figure 2 As shown, a transmission pipe 14 is fixedly connected to one side of the sterilization tank 401, a fourth water pump 15 is provided on one side of the transmission pipe 14, and a discharge pipe 16 is provided at the output end of the fourth water pump 15. When the water quality is qualified, the fourth water pump 15 can be started to draw the water in the sterilization tank 401 out of the transmission pipe 14 and discharge it into the designated position after passing through the discharge pipe 16.

[0044] like Figure 2 As shown, activated carbon 17 is arranged on the inner bottom wall of the placement frame 202. The activated carbon 17 is located at the top of the leakage hole 203 and is in contact with the inner wall of the placement frame 202. The activated carbon 17 has excellent adsorption properties and can adsorb pigments, odors and organic pollutants in the water flow to improve the filtering effect.

[0045] like Figure 2 As shown, the inner wall of the placement frame 202 is provided with quartz sand 18 , and the quartz sand 18 is located on the top of the activated carbon 17 . The quartz sand 18 can filter out large particles of suspended matter in the water, prevent the suspended matter from falling, and ensure the normal operation of the activated carbon 17 .

[0046] like Figure 6 As shown, an observation port 19 is provided inside the sterilization tank 401, and the inner wall of the observation port 19 is provided with tempered glass 20. Through the observation port 19 and the tempered glass 20, the staff can observe the water quality in the sterilization tank 401 conveniently, and when used in conjunction with the extraction frame 13, the staff can judge whether the water quality is qualified.

[0047] Specifically, when the multi-stage purification and fine filtration device for mineral water is in use: the first water pump 208 is started to pump the external water source into the tank body 1. The water flow after entering the tank body 1 will first enter the extension frame 206, and be intercepted by the PP cotton filter element 207 for preliminary filtration. Then the filtered water flow will continue to fall and enter the placement frame 202, and be filtered and adsorbed by the quartz sand 18 and the activated carbon 17. The adsorbed water flow will enter the bottom of the tank body 1 through the leakage hole 203. The second water pump 2113 is started to pump the water flow at the bottom of the tank body 1 into the fine filtration tank 2111. The water flow entering the fine filtration tank 2111 will be intercepted by the fine filtration membrane 2117 in the support frame 2116 to remove tiny particles and bacteria in the water and improve the water quality. The glass frame 406 is fixed in the sterilization tank 401, and then the ultraviolet lamp 408 is fixed on the mounting plate 407. Then fix the mounting plate 407 above the glass frame 406, start the third water pump 403, and the purified water in the fine filter tank 2111 can be drawn into the second extraction pipe 404, and injected into the sterilization tank 401 after passing through the second injection pipe 405, turn on the ultraviolet lamp 408, so that the light source can pass through the glass frame 406 to continuously irradiate and sterilize the water in the sterilization tank 401. When the water quality is qualified, start the fourth water pump 15 to discharge the water in the sterilization tank 401 into the designated position. The first photoelectric probe 303 can detect the water level in the tank body 1. When the water level in the tank body 1 drops, the signal will be transmitted to the first controller 304 through the first photoelectric liquid level sensor 302. The first controller 304 will control the first water pump 208 to stop extracting external water to prevent waste of water resources and allow the staff to replace the PP cotton filter element 207 in time.

[0048] All technical features in this embodiment can be freely combined according to actual needs.

[0049] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A multi-stage purification and fine filtration device for mineral water, comprising a tank body (1), characterized in that: A filtering mechanism (2) is provided on one side of the tank body (1), a detection component (3) is provided on one side of the tank body (1), and a sterilization component (4) is provided on one side of the filtering mechanism (2); The filtering mechanism (2) comprises a first cover plate (201), a placement frame (202), leakage holes (203), a fixing plate (204), bolts (205), an extension frame (206), a PP cotton filter element (207), a first water pump (208), a water inlet pipe (209), a water injection pipe (210) and a fine filter assembly (211); the first cover plate (201) is bolted to the top of the tank body (1); the placement frame (202) is arranged on the top of the first cover plate (201); the bottom of the placement frame (202) extends to the inside of the tank body (1); the plurality of leakage holes (203) are all arranged inside the placement frame (202); the fixing plate (204) is arranged on the inside of the placement frame (202); The top portion of the first cover plate (201) is provided with a plurality of bolts (205) which are threadedly connected to the inside of the fixing plate (204); the bottom portion of the bolts (205) passes through the top portion of the placement frame (202) and extends to the inside of the first cover plate (201); the extension frame (206) is fixedly connected to the bottom portion of the fixing plate (204); the PP cotton filter element (207) is arranged on the inner wall of the extension frame (206); the first water pump (208) is arranged on the top portion of the first cover plate (201); the water inlet pipe (209) is arranged at the input end of the first water pump (208); the water injection pipe (210) is arranged at the output end of the first water pump (208); and one end of the water injection pipe (210) extends to the inside of the extension frame (206).

2. A multi-stage purification and fine filtration device for mineral water according to claim 1, characterized in that: The fine filtration assembly (211) comprises a fine filtration tank (2111), a second cover plate (2112), a second water pump (2113), a first extraction pipe (2114), a first injection pipe (2115), a support frame (2116) and a fine filtration membrane (2117); the fine filtration tank (2111) is arranged on one side of the tank body (1); the second cover plate (2112) is bolted to the top of the fine filtration tank (2111); and the second water pump (2113) is arranged on the second cover plate (2112). The first extraction pipe (2114) is arranged at the input end of the second water pump (2113), one end of the first extraction pipe (2114) is fixedly connected to one side of the tank body (1) and communicates with the interior of the tank body (1), the first injection pipe (2115) is arranged at the output end of the second water pump (2113), the support frame (2116) is fixedly connected to the inner wall of the fine filtration tank (2111), and the fine filtration membrane (2117) is arranged on the inner bottom wall of the support frame (2116).

3. A multi-stage purification and fine filtration device for mineral water according to claim 1, characterized in that: The detection component (3) comprises a first mounting frame (301), a first photoelectric liquid level sensor (302), a first photoelectric probe (303) and a first controller (304); the first mounting frame (301) is bolted to the outer wall of the tank body (1); the first photoelectric liquid level sensor (302) is arranged on the inner bottom wall of the first mounting frame (301); the first photoelectric probe (303) is arranged on one side of the first photoelectric liquid level sensor (302); one end of the first photoelectric probe (303) extends into the interior of the tank body (1); the first controller (304) is arranged on the inner top wall of the first mounting frame (301); the first photoelectric liquid level sensor (302) is electrically connected to the first controller (304); and the first controller (304) is electrically connected to the first water pump (208).

4. A multi-stage purification and fine filtration device for mineral water according to claim 2, characterized in that: The sterilization assembly (4) comprises a sterilization tank (401), a third cover plate (402), a third water pump (403), a second extraction pipe (404), a second injection pipe (405), a glass frame (406), a mounting plate (407) and an ultraviolet lamp (408); the sterilization tank (401) is arranged on one side of the fine filtration tank (2111); the third cover plate (402) is bolted to the top of the sterilization tank (401); the third water pump (403) is arranged on the top of the third cover plate (402); The extraction pipe (404) is arranged at the input end of the third water pump (403), the second injection pipe (405) is arranged at the output end of the third water pump (403), the glass frame (406) is bolted to the top of the third cover plate (402), the bottom of the glass frame (406) extends to the inside of the sterilization tank (401), the mounting plate (407) is bolted to the top of the glass frame (406), and the ultraviolet lamp (408) is arranged at the bottom of the mounting plate (407) and is located inside the glass frame (406).

5. A multi-stage purification and fine filtration device for mineral water according to claim 2, characterized in that: A second mounting frame (5) is bolted to the outer wall of the fine filter tank (2111); a second photoelectric liquid level sensor (6) is arranged on the inner top wall of the second mounting frame (5); a second photoelectric probe (7) is arranged on one side of the second photoelectric liquid level sensor (6); one end of the second photoelectric probe (7) extends into the interior of the fine filter tank (2111); a second controller (8) is arranged on the inner bottom wall of the second mounting frame (5); the second controller (8) is electrically connected to the second photoelectric liquid level sensor (6); and the second controller (8) is electrically connected to the second water pump (2113).

6. A multi-stage purification and fine filtration device for mineral water according to claim 4, characterized in that: The top of the third cover plate (402) is fixedly connected to an internal threaded sleeve (9), the inner wall of the internal threaded sleeve (9) is threadedly connected to a threaded column (10), the top of the threaded column (10) is fixedly connected to a rotating plate (11), the bottom of the threaded column (10) is fixedly connected to an extension rod (12), and the bottom of the extension rod (12) is fixedly connected to an extraction frame (13).

7. A multi-stage purification and fine filtration device for mineral water according to claim 4, characterized in that: A transmission pipe (14) is fixedly connected to one side of the sterilization tank (401), a fourth water pump (15) is provided on one side of the transmission pipe (14), and a discharge pipe (16) is provided at the output end of the fourth water pump (15).

8. The multi-stage purification and fine filtration device for mineral water according to claim 1, characterized in that: Activated carbon (17) is arranged on the inner bottom wall of the placement frame (202); the activated carbon (17) is located on the top of the leakage hole (203) and is in contact with the inner wall of the placement frame (202).

9. The multi-stage purification and fine filtration device for mineral water according to claim 1, characterized in that: The inner wall of the placement frame (202) is provided with quartz sand (18), and the quartz sand (18) is located on the top of the activated carbon (17).

10. The multi-stage purification and fine filtration device for mineral water according to claim 4, characterized in that: An observation port (19) is provided inside the sterilization tank (401), and the inner wall of the observation port (19) is provided with tempered glass (20).

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