CN214167562U - Outdoor emergent purifier - Google Patents
Outdoor emergent purifier Download PDFInfo
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- CN214167562U CN214167562U CN202021841010.5U CN202021841010U CN214167562U CN 214167562 U CN214167562 U CN 214167562U CN 202021841010 U CN202021841010 U CN 202021841010U CN 214167562 U CN214167562 U CN 214167562U
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- Water Treatment By Sorption (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses an outdoor emergency water purifying device, which comprises a body, a ceramic membrane filter element, a detachable and washable water outlet nozzle, a manual piston water inlet device and a water inlet device, wherein the ceramic membrane filter element is positioned in the body; the manual piston water inlet device is positioned in the body and used for introducing water into the body and discharging the water out of the body; the detachable and washable water outlet nozzle is positioned at one end of the body for fixing the ceramic membrane filter element, and the other end of the ceramic membrane filter element is provided with an end cover; a microfiltration membrane pipe and a central layer are arranged in the ceramic membrane filter element, and a metal cluster water purification filter material, an adsorption filter material and a bacteriostatic material are sequentially filled in the central layer; a control film layer is arranged between the outer wall and the inner wall of the microfiltration membrane tube; the water outlet of the detachable and washable water nozzle is positioned on the antibacterial material. When the ceramic membrane filter element is repeatedly cleaned, the built-in control membrane layer can not be damaged in the cleaning process to influence the filtering precision; the water outlet of the detachable and washable water nozzle is positioned on the antibacterial material.
Description
Technical Field
The utility model belongs to the aqueous cleaning field, concretely relates to outdoor emergent purifier.
Background
In order to maintain normal metabolism, we must ingest a proper amount of safe and healthy fresh water every day. Even today with advanced science, there are many times and places where there is an adequate source of fresh water but it is not potable due to water quality problems! For example, when flood or earthquake occurs, the original water delivery pipe network may be damaged and polluted, and the water body is polluted by the animal carcasses soaked in lake water and river water, domestic garbage and even industrial pollutants such as chemical engineering and the like. When the disasters occur, the safety guarantee of emergency drinking water is very important, and if people in disaster areas drink the polluted water, symptoms such as diarrhea, vomiting, fever and the like can appear, and even epidemic diseases can occur. After disasters such as flood, earthquake and the like occur, the safety guarantee of drinking water is one of very important work of disaster relief. When non-disasters occur, the outdoor activities such as various road constructions, outdoor operations, army outdoor exercises, fishing, hiking and the like need to be guaranteed by safe drinking water. At present, safe drinking water can be obtained in two ways: firstly, bottled water is filled, and secondly, a water source is purified into drinkable water by using a proper water purifier. The outdoor water purifier can purify water sources at any time and any place, and becomes an important choice for emergency drinking water safety guarantee. Various outdoor water purifiers are also used at present. Patent CN111018162A "portable outdoor water purifier" comprises can dismantle water bag and water quality purifier. CN209291997U "a pull-out outdoor water purifier" forms filter core purification water by the range upon range of one or more of active carbon core, RO membrane, ceramic filter core, carbon fiber membrane. CN210457586U, "a portable ceramic membrane outdoor water purifier", utilizes ceramic membranes to purify water. The utility model discloses a "portable water purifier of pressure" (ZL03234134.2) utilizes manual water pump part, makes rivers pass through ceramic filter element and active carbon filter element through reciprocating of piston and obtains the water purification. The utility model 'portable pocket water purifier' (CN2253246Y) discloses a portable pocket water purifier, which uses the up-and-down movement of a piston rod to make water flow through an ultrafiltration device to obtain purified water. Utility model CN200963543Y discloses a portable ceramic membrane water purifier, utilizes the ceramic membrane filter core that can rinse repeatedly to detach aquatic pathogenic bacteria, alga, dust and obtain direct drinking water. The utility model (ZL99201207.4) utilizes solid disinfectant, active carbon and fine filter cloth to purify water. The utility model patent (CN105439301A) discloses a foot-operated portable water purifier, makes the raw water pass through reverse osmosis unit and obtains the water purification through pedal gasbag pressurization. The outdoor portable water purifier disclosed in the utility model patent (CN104445527A) adopts manpower to rotate the rocker wheel to make water flow through the ultrafiltration membrane for filtration and purification. Utility model patent (200620063423.9) discloses a portable ceramic membrane water purifier, utilizes manual piston water intaking device and water outlet device, flows outdoor natural water through the ceramic membrane filter core, gets rid of the pathogenic bacterium, alga and the dust of aquatic, obtains directly drinking water. These water purifiers basically adopt filter media with different filtering precisions, such as ceramic membranes, ultrafiltration membranes and reverse osmosis membranes to remove pathogenic bacteria in water, use or not use adsorbing materials such as active carbon to remove peculiar smell of water, or use physical (ultraviolet sterilization) or chemical disinfectants for sterilization, which are all concerned about removing pathogenic bacteria in water. A better and more practical emergency drinking water safety guarantee technology not only considers the removal of pathogenic bacteria, algae, dust and peculiar smell in water, but also considers the harm of harmful ions and organic pollutants in water, because the harmful substances in water are complicated and many nowadays when the industry is highly developed. And it must be considered that this kind of outdoor water purifier will not use after using like the domestic water purifier at first, but just use a period of time when needing, there is longer time of depositing between this use and the next use, if there is not reasonable antibacterial design, will appear bacterial growing in the storage period after the water purifier uses, microorganism in the air can be along the reverse growth of delivery port, take place the secondary pollution that bacterial growing on the water purification material that contacts with the water purification, no matter how good that this kind of outdoor water purifier degerming purifying effect, can't guarantee the security of the drinking water after purifying, although the raw water will appear to be aseptic safe after the filter core purifies, but the rivers after purifying are polluted once more when parts such as filter core, delivery port. The prior various outdoor water purifiers have no technical design for ensuring that the water purifying side is not polluted secondarily. Therefore, it is necessary to develop an outdoor emergency drinking water safety guarantee technology and device which can efficiently remove pathogenic bacteria in water, effectively reduce harmful ions and organic pollutants in water and ensure that no secondary pollution is caused by bacterial breeding in the using and storing processes.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the not enough of current outdoor water purification technique, provide one kind can effectively filtering harmful substance such as bacterium and suspension pollutant, harmful ion and organic pollutant in the aquatic such as dust, alga, go out the water side and have antibacterial blocking layer to ensure that the purified water is not by secondary pollution's outdoor emergent drinking water safety guarantee technique and device. The water purifying technology and the device can directly purify natural water such as rainwater, lake water, river water and the like or polluted tap water into direct drinking water when disasters such as flood, earthquake and the like occur, and can also be used for drinking water safety guarantee devices in outdoor activities such as outdoor operation, wartime, fishing, hiking and the like.
The utility model discloses at least, one of following technical scheme realizes.
An outdoor emergency water purifying device comprises a body, a ceramic membrane filter element, a detachable and washable water outlet nozzle, a manual piston water inlet device and a water inlet device, wherein the ceramic membrane filter element is positioned in the body; the manual piston water inlet device is positioned in the body and used for introducing water into the body and discharging the water out of the body; the detachable and washable water outlet nozzle is positioned at one end of the body for fixing the ceramic membrane filter element, and the other end of the ceramic membrane filter element is provided with a filter element end cover;
a microfiltration membrane pipe and a central layer are arranged in the ceramic membrane filter element, and a metal cluster water purification filter material, an adsorption filter material and a bacteriostatic material are sequentially filled in the central layer; a control film layer is arranged between the outer wall and the inner wall of the microfiltration membrane tube; the water outlet of the detachable and washable water nozzle is positioned on the antibacterial material.
Furthermore, a water outlet hole is formed in the detachable and washable water outlet nozzle and is located above the central layer.
Furthermore, the water inlet device comprises a water inlet pipe connected with the water inlet, a concave type prefilter head connected with the water inlet pipe, and a prefilter screen positioned in the concave type prefilter head.
Furthermore, a positioning buoy is arranged on the water inlet pipe.
Further, the manual piston water inlet device comprises a handle, a piston end cover, a piston rod and a piston head; the handle is connected with the piston head through the piston rod, and the piston end cover fixes the piston rod in the body.
Furthermore, a water purification guide pipe is arranged in a gap between the microfiltration membrane pipe and the central layer, and water passes through the control membrane layer and the inner wall of the membrane pipe, then sequentially passes through the metal cluster water purification filter material, the adsorption filter material and the antibacterial material, and finally flows out of a water outlet hole in the detachable and washable water nozzle.
Furthermore, a boss is arranged in the detachable and washable water outlet nozzle and is in clearance fit with the micro-filtration membrane tube and the purified water guide tube.
Furthermore, the detachable and washable water outlet nozzle can be detached for washing and freely orienting, the detachable and washable water outlet nozzle can be detached in the using process, then the ceramic membrane filter element is taken out for washing, and a built-in control membrane layer cannot be damaged in the washing process to influence the filtering precision when the ceramic membrane filter element is repeatedly washed; pathogenic bacteria, algae, giardia, cryptosporidium and dust trapped during use cannot come into contact with the clean water side.
Further, the pore size of the control membrane layer is not more than 0.2 micron.
Furthermore, the filter element end cover is provided with a groove for fixing the ceramic membrane filter element and the microfiltration membrane tube.
Furthermore, the metal cluster water purification filter material is used for reducing harmful ions such as lead, cadmium, chromium, arsenic, fluorine and the like in water into water-insoluble metals or precipitates to remove the harmful ions, and degrading organic pollutants such as pesticides and insecticides.
Furthermore, the adsorption filter material is used for removing peculiar smell in water, so that the adsorption filter material is ensured to remove peculiar smell in water, pathogenic bacteria in raw water cannot be attached and propagated in the adsorption filter material when the taste is improved, and the safety is ensured.
Furthermore, antibacterial materials are used at the water purification water outlet, so that microorganisms in the air are prevented from breeding reversely along the water outlet to pollute the water purification side after the water purification water outlet is used and during long-time storage.
The utility model discloses both can degerming but also the abluent tertiary water purification filter core of antibacterial use, water gets into inside from ceramic membrane filter core outside, the pathogenic bacterium of aquatic, the alga, the giardia flagellates and pollutants granularity such as cryptosporidium and dust all is greater than 0.2 micron, utilize the bacterium that the inside control rete of ceramic membrane filter core made the aquatic, dust, the suspension pollutant in the aquatic such as alga is held back, water after the purification gets into inside the filter core, further get rid of heavy metal ion and the organic pollutant in the aquatic by metal cluster filter material redox, again through the absorption filter material and the bacteriostatic material after by the faucet outflow completion filtration process. The control film layer can not be damaged when the ceramic membrane filter element is cleaned, and the filter precision in the using process is not influenced by the cleaning of the using box.
The water purifier can filter out pathogenic bacteria such as escherichia coli, salmonella, staphylococcus aureus, legionella, cholera and the like and pathogenic protozoa such as cryptosporidium, giardia and the like in water, can reduce harmful ions such as arsenic, cadmium, chromium, lead ions and the like in water, and can also reduce the concentration of organic pollutants in water. Pathogenic factors in natural water bodies are far more than microorganisms such as bacteria, and the existence of various harmful ions and organic pollutants also increases the direct drinking risk of outdoor natural drinking water. When natural disasters such as flood, earthquake take place, the risk of outbreak of water source nature disease will all be increased to destroyed water supply system and contaminated drinking water source, the utility model discloses an outdoor emergent drinking water safety guarantee technique and device can purify directly drinking water with the unsafe water source when water supply system destroys or the contaminated condition. During various outdoor operations, people also can use natural water as a water source, use the utility model discloses become aseptic water purification that can directly drink with natural water, ensure emergent and outdoor drinking water safety.
Compared with the prior art, the utility model discloses following effect has:
(1) the degerming water purification control membrane layer is arranged between the inner wall and the outer wall of the microfiltration membrane pipe, so that the damage to the membrane layer in the use and cleaning process can be avoided, and the influence of external factors such as cleaning and use on the filtration precision in the use process can be avoided.
(2) Can remove harmful ions and organic pollutants in water, and can purify water more safely.
(3) The water outlet is provided with the antibacterial material, so that the water purifying filter material arranged in the ceramic membrane tube is prevented from being polluted by bacteria during long-term storage, and no secondary pollution is caused when the water is used at any time.
(4) The design of the positioning floater and the concave pre-filtering head of the water inlet ensures that the water inlet is smooth and is not blocked by leaves, silt and the like.
Drawings
Fig. 1 is a structural view of an outdoor water purification apparatus of the present embodiment;
FIG. 2 is a schematic view of the water purification of the present embodiment;
FIG. 3 is an enlarged view of a portion of the interior of the removable clean water spout and the ceramic membrane cartridge of this embodiment;
fig. 4 is a partial enlarged view of the inside of the ceramic membrane cartridge of the present embodiment.
Detailed Description
The present invention will be described in further detail below with reference to examples and the accompanying drawings.
As shown in fig. 1 and 4, an outdoor water purifying device comprises a body 11, a ceramic membrane filter element 1, a detachable and washable water outlet nozzle 6, a manual piston water inlet device 7 and a water inlet device; the water inlet device is connected with a water inlet on the body 11, and the manual piston water inlet device 7 is positioned in the body 11 and used for introducing water into and discharging water out of the body 11; the ceramic membrane filter element 1 is positioned in a filter element cylinder on the body 11; the detachable and washable water outlet nozzle 6 is positioned at one end of the body 11 and used for fixing the ceramic membrane filter element 1, and a filter element end cover 12 is arranged at the other end of the body 11. The filter element end cover 12 is provided with a groove for fixing the ceramic membrane filter element 1 and the microfiltration membrane tube 2.
A microfiltration membrane tube 2 and a central layer are arranged in the ceramic membrane filter element 1, and a metal cluster water purification filter material 3, an adsorption filter material 4 and an antibacterial material 5 are sequentially filled in the central layer from bottom to top; the ceramic membrane filter element 1 and the microfiltration membrane tube 2 are fixed in the body 11 by the detachable and washable water outlet nozzle 6 and the filter element end cover 12.
A control film layer 2-2 is arranged between the outer wall 2-1 and the inner wall 2-3 of the microfiltration film pipe 2, and the aperture of the control film layer 2-2 is not more than 0.2 micron.
A water purification guide pipe 9 is arranged in a gap between the microfiltration membrane pipe 2 and the central layer, and water passes through the control membrane layer 2-2 and the inner wall 2-3 of the membrane pipe, then sequentially passes through the metal cluster water purification filter material 3, the adsorption filter material 4 and the antibacterial material 5, and finally flows out of a water outlet hole in the detachable and washable water nozzle 6. The detachable and washable water outlet nozzle 6 is internally provided with a boss which is in clearance fit with the micro-filtration membrane tube 2 and the purified water guide tube 9.
Be equipped with the apopore in removable faucet 6 that washes, the apopore is in the centre layer top, and water flows out from removable faucet 6's apopore that washes behind bacteriostatic material 5. The manual piston water inlet device 7 and the manual piston water inlet device 8 can guide polluted tap water in outdoor river water, lake water, collected rainwater or earthquake and other disasters into the device to complete the purification process.
The water inlet device comprises a water inlet pipe 8-1, a concave prefilter head 8-2 connected with the water inlet pipe 8-1 and a prefilter screen 8-3 positioned in the concave prefilter head 8-2; and a positioning buoy 8-4 is arranged on the water inlet pipe 8-1. When the water taking device is used, the water inlet pipe 8-1 is placed in a water source to be purified, the distance between the positioning buoy 8-4 and the prefilter head 8-2 is adjusted according to the water depth of the water source, the water taking port is ensured to be submerged, but the water taking port cannot touch the bottom and enter underwater silt, in a flowing water source place, when the prefilter head contacts the bottom of water in the water taking process, the prefilter head 8-2 is designed in a concave mode, only the protruding boss of the prefilter net 8-3 can be ensured to contact the bottom of the water, and the water inlet is effectively prevented from being blocked by silt, leaves and the like in the filtering process.
The manual piston water inlet device 7 comprises a handle 7-1, a piston end cover 10, a piston rod 7-2 and a piston head 7-3; the handle 7-1 is connected with the piston head 7-3 through the piston rod 7-2, and the piston end cover 10 fixes the piston rod in the body 11.
The water inlet, the first channel and the second channel which are communicated with the water inlet are arranged in the body 11, and the water inlet is connected with the water inlet pipe 8-1. Piston water installations 7 sets up in this is internal, and this is internal through upwards pulling piston water installations 7 with water from water installations through first passageway introduction, and it is internal to push down to pull piston water installations 7 water and get into the filter element section of thick bamboo of body through the second passageway, then passes through ceramic membrane filter core 1, micro-filtration membrane pipe 2, metal cluster water purification filter material 3, adsorption filter material 4 and antibacterial material 5 in proper order, and the apopore outflow in removable washing faucet 6 supplies directly to drink at last.
As shown in fig. 2, during water purification, the raw water flow direction is indicated by an arrow, large-particle suspended pollutants are firstly intercepted by the pre-filter screen 8-3 and reach the surface of the ceramic membrane filter element 1, most suspended pollutants and bacteria, algae, ova and the like in water are intercepted on the surface of the ceramic membrane filter element, suspended pollutants and bacteria with smaller particle sizes are completely intercepted in rich pore channels between the outer wall 2-1 and the inner wall 2-3 of the control membrane layer 2-2 and the microfiltration membrane tube 2, water from which suspended pollutants such as bacteria and the like are removed flows through the metal cluster filter material 3, harmful ions and organic pollutants dissolved in water are oxidized and reduced and are further adsorbed on the metal cluster filter material 3 and the adsorption filter material 4, and water after triple purification flows through the bacteriostatic material 5 and flows out through the detachable washing water outlet 6 for direct drinking.
The metal cluster filter material 3 is a copper-zinc metal cluster filter material; the adsorption filter material 4 is an activated carbon adsorption filter material; the antibacterial material 5 is a silver-loaded antibacterial material.
As shown in figure 3, work as the utility model discloses outdoor emergent drinking water safety guarantee device is in the storage process, because at the water purification outlet side, can unpick and wash before the faucet 6 has antibacterial material 5, ensures that the bacterium in the ambient air can not follow out that can unpick and wash the reverse infiltration of faucet 6 and get into water purification filter material and micro-filtration membrane inside pipe wall 2-3, stops the storage process bacterium and breeds the reproduction in the water purification side. Meanwhile, as shown in the figure 3-2, the control film layer 2-2 is arranged on the water inlet side, bacteria in water in the water purification process can not enter the inner wall 2-3 of the micro-filtration membrane pipe and the water purification filter material through the control film layer 2-2, and when the micro-filtration membrane pipe is not used, the control film layer 2-2 can also ensure that the bacteria in the ambient air can not permeate and breed to the inner wall 2-3 of the micro-filtration membrane pipe and the filter material through the control film layer 2-2. The problem of ordinary outdoor water purifier filter core during storage easily contaminate the fungus, water purification secondary pollution when leading to reuse is solved.
The water purification effect of this embodiment is as follows:
the content of the escherichia coli in the inlet water is 1.3x106CFU/100ml, outlet water<1CFU/100ml, degerming rate>99.9999％。
The concentration of arsenic in inlet water is 0.03mg/L, and the concentration of outlet water is less than 0.01 mg/L.
The lead concentration of inlet water is 0.05mg/L, and the outlet water is less than 0.01 mg/L.
Influent Cr6+The concentration is 0.23mg/L, and the effluent is<0.05mg/L。
Influent F-The concentration is 4.6mg/L, and the effluent is<1mg/L。
The above-described embodiments are merely illustrative of several embodiments of the present invention, which are described in detail and specific, but not intended to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. An outdoor emergency water purifying device is characterized by comprising a body (11), a ceramic membrane filter element (1) positioned in the body (11), a detachable and washable water outlet nozzle (6), a manual piston water inlet device (7) and a water inlet device; the water inlet device is communicated with a water inlet on the body (11), and the manual piston water inlet device (7) is positioned in the body (11) and is used for introducing and discharging water out of the body (11); the detachable and washable water outlet nozzle (6) is positioned at one end of the body (11) for fixing the ceramic membrane filter element (1), and the other end of the ceramic membrane filter element (1) is provided with a filter element end cover (12);
a microfiltration membrane tube (2) and a central layer are arranged in the ceramic membrane filter element (1), and a metal cluster water purification filter material (3), an adsorption filter material (4) and a bacteriostatic material (5) are sequentially filled in the central layer; a control film layer (2-2) is arranged between the outer wall (2-1) and the inner wall (2-3) of the microfiltration film tube (2); the water outlet of the detachable and washable water nozzle (6) is positioned on the bacteriostatic material (5).
2. An outdoor emergency water purification device according to claim 1, wherein the detachable and washable water outlet nozzle (6) is provided with a water outlet hole, and the water outlet hole is positioned above the central layer.
3. An outdoor emergency water purification device according to claim 2, wherein the water inlet device comprises a water inlet pipe (8-1) connected with the water inlet, a concave prefilter head (8-2) connected with the water inlet pipe (8-1), and a prefilter screen (8-3) located in the concave prefilter head (8-2).
4. An outdoor emergency water purification device according to claim 3, wherein a positioning buoy (8-4) is arranged on the water inlet pipe (8-1).
5. An outdoor emergency water purification device according to claim 4, wherein the manual piston water inlet device (7) comprises a handle (7-1), a piston end cover (10), a piston rod (7-2) and a piston head (7-3); the handle (7-1) is connected with the piston head (7-3) through the piston rod (7-2), and the piston end cover (10) fixes the piston rod in the body (11).
6. An outdoor emergency water purification device according to claim 5, wherein a water purification guide pipe (9) is arranged in a gap between the microfiltration membrane tube (2) and the central layer, and water passes through the control membrane layer (2-2) and the inner wall (2-3) of the membrane tube, then sequentially passes through the metal cluster water purification filter material (3), the adsorption filter material (4) and the bacteriostatic material (5), and finally flows out from a water outlet hole in the detachable and washable water outlet nozzle (6).
7. An outdoor emergency water purification device according to claim 6, wherein a boss is arranged in the detachable and washable water outlet nozzle (6), and the boss is in clearance fit with the micro-filtration membrane tube (2) and the purified water guide tube (9).
8. An outdoor emergency water purification device according to claim 7, wherein the detachable and washable water outlet nozzle (6) is detachable and freely orientable.
9. An outdoor emergency water purification device according to claim 8, wherein the pore size of the control membrane layer (2-2) is not more than 0.2 μm.
10. An outdoor emergency water purification device according to any one of claims 1 to 8, wherein the filter element end cap (12) is provided with a groove for fixing the ceramic membrane filter element (1) and the microfiltration membrane tube (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021841010.5U CN214167562U (en) | 2020-08-28 | 2020-08-28 | Outdoor emergent purifier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021841010.5U CN214167562U (en) | 2020-08-28 | 2020-08-28 | Outdoor emergent purifier |
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| CN214167562U true CN214167562U (en) | 2021-09-10 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860536A (en) * | 2021-11-04 | 2021-12-31 | 西南兵工重庆环境保护研究所有限公司 | Laminated outdoor portable water purifier |
| CN114349193A (en) * | 2021-12-30 | 2022-04-15 | 北京碧水源净水工程技术股份有限公司 | Portable high-purification-degree water purifier |
| CN117658390A (en) * | 2024-01-30 | 2024-03-08 | 温州德安水处理有限公司 | Flexible integrated flat ceramic membrane water purifying equipment |
| CN119461581A (en) * | 2025-01-10 | 2025-02-18 | 浙江至美环境科技有限公司 | A handheld outdoor ceramic water purifier |
-
2020
- 2020-08-28 CN CN202021841010.5U patent/CN214167562U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860536A (en) * | 2021-11-04 | 2021-12-31 | 西南兵工重庆环境保护研究所有限公司 | Laminated outdoor portable water purifier |
| CN114349193A (en) * | 2021-12-30 | 2022-04-15 | 北京碧水源净水工程技术股份有限公司 | Portable high-purification-degree water purifier |
| CN117658390A (en) * | 2024-01-30 | 2024-03-08 | 温州德安水处理有限公司 | Flexible integrated flat ceramic membrane water purifying equipment |
| CN119461581A (en) * | 2025-01-10 | 2025-02-18 | 浙江至美环境科技有限公司 | A handheld outdoor ceramic water purifier |
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