CN112403274B - Reverse osmosis filter element and water purification equipment - Google Patents
Reverse osmosis filter element and water purification equipmentInfo
- Publication number
- CN112403274B CN112403274B CN201910771205.2A CN201910771205A CN112403274B CN 112403274 B CN112403274 B CN 112403274B CN 201910771205 A CN201910771205 A CN 201910771205A CN 112403274 B CN112403274 B CN 112403274B
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- CN
- China
- Prior art keywords
- water
- central tube
- water storage
- reverse osmosis
- filter element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/06—Tubular membrane modules
- B01D63/062—Tubular membrane modules with membranes on a surface of a support tube
- B01D63/065—Tubular membrane modules with membranes on a surface of a support tube on the outer surface thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/08—Apparatus therefor
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/18—Specific valves
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nanotechnology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
本发明公开一种反渗透滤芯及净水设备，反渗透滤芯包括：中心管，中心管的周壁开设有纯水孔；反渗透膜片，卷绕于中心管的外周；储水件，储水件设有进水口、出水口以及连通进水口与出水口的储水腔；储水件设于中心管内，进水口与中心管的管腔连通，出水口与中心管的出水端连通；单向导通装置，设置于进水口，单向导通装置朝向储水腔导通。本发明反渗透滤芯降低了首杯水的溶解性杂质含量，提高了制水时首杯水的纯净度，从而提高了净水系统的实用性。
The present invention discloses a reverse osmosis filter element and water purification equipment. The reverse osmosis filter element comprises: a central tube, the peripheral wall of which is provided with pure water holes; a reverse osmosis membrane wound around the outer circumference of the central tube; a water storage element, the water storage element having a water inlet, a water outlet, and a water storage cavity connecting the water inlet and the water outlet; the water storage element is disposed within the central tube, the water inlet is connected to the tube cavity of the central tube, and the water outlet is connected to the water outlet end of the central tube; and a one-way conduction device is disposed at the water inlet and is conducted toward the water storage cavity. The reverse osmosis filter element of the present invention reduces the soluble impurity content of the first cup of water, improves the purity of the first cup of water during water production, and thus improves the practicality of the water purification system.
Description
Technical Field
The invention relates to the field of water purifying equipment, in particular to a reverse osmosis filter element and water purifying equipment.
Background
In the existing water purifying equipment, raw water is filtered mainly by means of a membrane filter element, however, when the water purifying equipment is in a standby state, raw water, waste water and pure water exist in the membrane filter element at the same time, wherein the raw water and the waste water are all in front of the membrane filter element, the pure water is in the back of the membrane filter element, and the TDS values of the raw water and the waste water are all greatly higher than the TDS values of the pure water, if the water purifying equipment is in the standby state for a long time, ions in the raw water and the waste water of the membrane filter element are diffused into the pure water, so that the TDS value of the pure water is increased, and when the water purifying equipment is started up for the next time to prepare the pure water, the TDS value of a first cup of pure water prepared by the water is relatively high, and the experience of a user is affected.
Disclosure of Invention
The invention mainly aims to provide a reverse osmosis filter element, and aims to solve the technical problem of how to improve the purity of first cup water of water purifying equipment.
In order to achieve the above object, the present invention provides a reverse osmosis filter cartridge comprising:
The periphery wall of the central tube is provided with pure water holes;
A reverse osmosis membrane sheet wound around the outer periphery of the central tube;
The water storage part is provided with a water inlet, a water outlet and a water storage cavity communicated with the water inlet and the water outlet, the water storage part is arranged in the central pipe, the water inlet is communicated with the pipe cavity of the central pipe, and the water outlet is communicated with the water outlet end of the central pipe;
the one-way conduction device is arranged at the water inlet and is conducted towards the water storage cavity.
Preferably, the water storage piece is in a cylindrical arrangement extending along the axial direction of the central tube, the water inlet and the water outlet are formed at two ends of the water storage piece, and a water passing gap communicated with the pure water hole is formed between the water storage piece and the central tube.
Preferably, one end of the central tube corresponding to the water inlet is closed, and one end of the central tube corresponding to the water outlet is in sealing fit with the water storage piece.
Preferably, the inner wall of the closed end of the central tube is convexly provided with a supporting rib extending along the axial direction, and the supporting rib is abutted to the water inlet end of the water storage piece.
Preferably, the outer wall of the water storage piece is convexly provided with an abutting rib, and the abutting rib abuts against the inner wall of the central tube.
Preferably, the number of the abutting ribs is multiple, and the multiple abutting ribs are arranged at intervals along the circumferential direction of the water storage piece.
Preferably, a guide inclined plane is formed on one side of the abutting rib facing the water inlet end of the water storage piece.
Preferably, the abutment rib comprises a first abutment rib adjacent the water inlet and a second abutment rib adjacent the water outlet.
Preferably, the outer wall of the water storage piece adjacent to one end of the water outlet is convexly provided with a reinforcing rib extending along the circumferential direction of the outer wall of the water storage piece.
Preferably, the outer wall of the water storage piece is convexly provided with an abutting rib, and the free end of the abutting rib is convexly arranged on the reinforcing rib and abuts against the inner wall of the central tube.
Preferably, the unidirectional conduction device comprises a unidirectional valve.
The check valve comprises a valve body, a valve core and a reset piece, wherein the valve body is in sealing fit with the water inlet, the valve body is provided with a water inlet hole, a water outlet hole and a water passing channel communicated with the water inlet hole and the water outlet hole, and the valve core can be movably arranged in the water passing channel and is used for blocking or opening the water inlet hole under the action of the reset piece or water flow.
Preferably, the water outlet end of the valve body is provided with a supporting member, the resetting member is an elastic member, one end of the elastic member is abutted to the supporting member, and the other end of the elastic member is abutted to the valve core.
Preferably, the support piece comprises a limiting cylinder and a connecting rib connected with the limiting cylinder and the valve body, the valve core comprises a water retaining part and a limiting part, the limiting part is in sliding fit with the limiting cylinder, the elastic piece is sleeved with the limiting cylinder, one end of the elastic piece is abutted to the connecting rib, and the other end of the elastic piece is abutted to the limiting part.
The invention further provides water purifying equipment, which comprises a reverse osmosis filter element, a reverse osmosis membrane and a unidirectional conduction device, wherein the peripheral wall of the central tube is provided with a pure water hole, the reverse osmosis membrane is wound on the periphery of the central tube, the water storage piece is provided with a water inlet, a water outlet and a water storage cavity communicated with the water inlet and the water outlet, the water storage piece is arranged in the central tube, the water inlet is communicated with the cavity of the central tube, the water outlet is communicated with the water outlet end of the central tube, and the unidirectional conduction device is arranged at the water inlet and is conducted towards the water storage cavity.
According to the reverse osmosis filter element, the water storage piece is arranged in the central tube, the one-way conduction device is arranged at the water inlet of the water storage piece, so that water in the water storage piece can not flow back to the central tube, namely, the water in the water storage piece can not exchange ions with water in the central tube, and therefore, when the water purifying equipment is stopped, even if ions in raw water diffuse into the central tube, the ions can not enter the water storage piece, and because the water purifying equipment is started again, the first cup of water obtained by a user, namely, the water in the water storage piece, is still pure water, the content of soluble impurities in the first cup of water is reduced, and the purity of the first cup of water in water preparation is improved, so that the practicability of the water purifying system is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of a reverse osmosis cartridge of the present invention;
FIG. 2 is a schematic cross-sectional view of an embodiment of a reverse osmosis cartridge of the present invention;
FIG. 3 is a schematic cross-sectional view of another embodiment of a reverse osmosis cartridge of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a schematic cross-sectional view of yet another embodiment of a reverse osmosis cartridge of the present invention;
Fig. 6 is a partial enlarged view at B in fig. 5.
Reference numerals illustrate:
the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear are referred to in the embodiments of the present invention), the directional indications are merely used to explain the relative positional relationship, movement conditions, and the like between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides a reverse osmosis filter element.
In an embodiment of the present invention, as shown in fig. 1 to 4, the reverse osmosis cartridge includes:
a central tube 10, wherein pure water holes 11 are formed in the peripheral wall of the central tube 10;
A reverse osmosis membrane 20 wound around the outer periphery of the central tube 10;
The water storage device comprises a water storage piece 30, wherein the water storage piece 30 is provided with a water inlet 31, a water outlet 32 and a water storage cavity 33 which is communicated with the water inlet 31 and the water outlet 32, the water storage piece 30 is arranged in the central pipe 10, the water inlet 31 is communicated with the pipe cavity of the central pipe 10, and the water outlet 32 is communicated with the water outlet end of the central pipe 10;
The unidirectional conduction device 40 is disposed at the water inlet 31, and the unidirectional conduction device 40 conducts towards the water storage cavity 33.
In this embodiment, the reverse osmosis membrane 20 is wound around the central tube 10 to form a reverse osmosis unit having a raw water flow path and a pure water flow path, and the pure water flow path is communicated with the pure water hole 11 of the central tube 10 so that the permeated pure water flows into the lumen of the central tube 10. The reverse osmosis filter element further comprises a shell, the reverse osmosis unit and the central tube 10 are both arranged on the shell, the shell is provided with a raw water inlet communicated with the water inlet end of the raw water flow channel, a pure water outlet communicated with the water outlet end of the central tube 10, and a waste water outlet communicated with the water outlet end of the raw water flow channel. The shape of the water storage member 30 may be cylindrical or spherical, and is not limited herein, and it is only required that the water storage member 30 is located in the lumen of the central tube 10. The water entering the central tube 10 will first enter the water storage chamber 33 and then flow out of the central tube 10 via the water outlet 32. It will be appreciated that the pure water does not exchange ions with the water in the central tube 10 during the process of flowing out of the central tube 10 from the water storage chamber 33, and the water flowing into the central tube 10 can only flow out of the central tube 10 after entering the water storage chamber 33. The unidirectional conduction device 40 can be a unidirectional valve or other conduction structures, and only water can flow into the water storage cavity 33 from the water inlet 31 but cannot flow out. When the water purifying device is stopped, ions in the wastewater channel can be diffused to the pure water channel and further diffused into the central tube 10, and as the water inlet 31 of the water storage piece 30 is provided with the one-way conduction device 40, water in the water storage cavity 33 can not be subjected to ion exchange with water in the central tube 10, and in addition, after the water purifying device is stopped, water in the water storage cavity 33 can not be taken out, namely, the water can be filled in the water storage cavity 33, so that water in the central tube 10 can not enter the water storage cavity 33 after the water purifying device is stopped, namely, ions can not be diffused into the water storage cavity 33 after the water purifying device is stopped. Thus, when the water purifying apparatus is operated again, the first cup of water obtained from the water storage chamber 33 by the user does not contain ions, and the cleanliness is high.
According to the reverse osmosis filter element, the water storage piece 30 is arranged in the central tube 10, the one-way conduction device 40 is arranged at the water inlet 31 of the water storage piece 30, so that water in the water storage piece 30 can not flow back to the central tube 10, namely, the water in the water storage piece 30 can not be subjected to ion exchange with water in the central tube 10, and therefore, when the water purifying equipment is stopped, even if ions in raw water diffuse into the central tube 10, the ions can not enter the water storage piece 30, and because the water purifying equipment is started again, the water in the first cup of water obtained by a user, namely, the water in the water storage piece 30, is still pure water, the content of soluble impurities in the first cup of water is reduced, the purity of the first cup of water in water preparation is improved, and the practicability of a water purifying system is improved.
Specifically, as shown in fig. 1 to 4, the water storage member 30 is provided in a cylindrical shape extending along the axial direction of the central tube 10, the water inlet 31 and the water outlet 32 are formed at two ends of the water storage member 30, and a water passing gap 12 communicating with the pure water hole 11 is formed between the water storage member 30 and the central tube 10. In this embodiment, the water storage member 30 is adapted to the central tube 10, so long as the volume of the water storage chamber 33 is maximized, and the water gap 12 for the pure water to flow is formed between the outer wall of the water storage member 30 and the inner wall of the central tube 10 and between the water inlet 31. Pure water enters the central tube 10 from the pure water hole 11, flows to the water inlet 31 of the water storage part 30 along the water gap 12, and finally flows into the water storage cavity 33 through the one-way conduction device 40. Because the water storage member 30 is in a cylindrical shape corresponding to the central tube 10, the size of the water storage member 30 can be maximized, namely the volume of the water storage cavity 33 can be maximized, and the volume of the water passing gap 12 can be minimized, therefore, after the water purifying device is stopped, the water quantity polluted by ions in the central tube 10 can be less, and after the water purifying device is operated again, the polluted water can continuously enter the water storage member 30, but due to the smaller quantity, the influence on the pure water in the water storage cavity 33 is smaller, and the polluted water can be effectively diluted by the pure water, so that the total ion content of the previous cups of water after the water purifying device is operated again can be reduced, and the cleanliness of the previous cups of water is improved, so that the integral practicability of the reverse osmosis filter element is improved.
In practical application, as shown in fig. 2 to 4, one end of the central tube 10 corresponding to the water inlet 31 is closed, and one end of the central tube 10 corresponding to the water outlet 32 is in sealing fit with the water storage member 30. In the present embodiment, a certain interval is provided between the closed end of the central tube 10 and the water inlet 31 so that pure water flowing along the water gap 12 can smoothly flow into the water storage chamber 33. One end of the central tube 10 forms a water outlet end corresponding to the water outlet 32, the outer wall of the water outlet end is provided with a sealing groove extending along the circumferential direction, and the sealing groove is embedded with a sealing ring so as to realize the sealing fit of the central tube 10 and the water storage piece 30 through the sealing ring.
In an embodiment, as shown in fig. 3 and 4, the inner wall of the closed end of the central tube 10 is convexly provided with a supporting rib 13 extending along the axial direction, and the supporting rib 13 abuts against the water inlet end of the water storage member 30. In this embodiment, the supporting rib 13 is convexly disposed on the inner peripheral wall of the central tube 10, one end of the supporting rib 13 is connected with the end wall of the closed end of the central tube 10, and the other end of the supporting rib is abutted to the water inlet end of the water storage member 30, so as to effectively support the water storage member 30, so that the water storage member 30 can be stably installed in the central tube 10, and the distance between the central tube 10 and the water inlet end of the water storage member 30 can be ensured. In practical application, the number of the supporting ribs 13 is a plurality of and are arranged at intervals along the circumferential direction of the central tube 10, so as to increase the supporting area of the water storage member 30 and further improve the installation stability of the water storage member 30.
In another embodiment, as shown in fig. 2, the outer wall of the water storage member 30 is provided with an abutment rib 34, and the abutment rib 34 abuts against the inner wall of the central tube 10. In this embodiment, the abutment ribs 34 can effectively form the water gap 12 between the outer wall of the water storage member 30 and the inner wall of the central tube 10, so as to avoid the blockage of the pure water hole 11 caused by the direct abutment of the outer wall of the water storage member 30 with the central tube 10, thereby improving the working stability of the reverse osmosis filter element.
Specifically, the number of the abutment ribs 34 is plural, and the plural abutment ribs 34 are disposed at intervals along the circumferential direction of the water storage member 30. In this embodiment, a plurality of abutment ribs 34 are arranged at intervals along the circumferential direction of the water storage member 30, and the pure water holes 11 are arranged at intervals along the circumferential direction of the central tube 10, so that the water passing gap 12 can also extend along the circumferential direction of the water storage member 30, and a plurality of positions on the circumferential direction of the central tube 10 can be used for effectively feeding water, so that the water feeding efficiency of pure water is improved, and the overall working efficiency of the reverse osmosis filter element is improved. In practical applications, the abutment rib 34 includes a first abutment rib 342 adjacent to the water inlet 31 and a second abutment rib 343 adjacent to the water outlet 32. By abutting the first abutting rib 342 and the second abutting rib 343 against the center pipe 10, the water storage member 30 as a whole can form the water gap 12 with the center pipe 10, thereby improving the water purification efficiency.
Since the central tube 10 is closed at one end, the water storage member 30 is usually installed in the central tube 10 from the water outlet end of the central tube 10, and the water inlet end of the water storage member 30 is installed in the central tube 10. The abutment rib 34 may increase the difficulty of the water storage member 30 entering the central tube 10, so that a guiding inclined plane 341 is formed on the side of the abutment rib 34 facing the water inlet end of the water storage member 30, and the guiding inclined plane 341 can enable the abutment rib 34 to enter the book outlet end of the central tube 10 more smoothly, so that the water storage member 30 is installed more simply and conveniently. The width of the abutting rib 34 can decrease from the fixed end to the contact end, so as to reduce the contact area between the abutting rib 34 and the central tube 10, thereby reducing the friction force between the abutting rib 34 and the central tube 10 in the installation process and further reducing the installation difficulty.
In an embodiment, as shown in fig. 2 to 4, the outer wall of the water storage member 30 adjacent to one end of the water outlet 32 is provided with a reinforcing rib 35 extending along the circumferential direction of the outer wall of the water storage member 30. In this embodiment, in order to reduce the influence of the wall thickness of the water storage member 30 on the volume of the water storage chamber 33, the wall thickness of the water storage member 30 is reduced as much as possible, but the water storage member 30 is in a high water pressure environment when the water purification apparatus is in operation, so as to avoid the water storage member 30 from being damaged by high water pressure, and the pressure resistance of the water storage member 30 should be improved. The reinforcing ribs 35 can effectively improve the structural strength of the water storage member 30, thereby improving the compression resistance of the water storage member 30. In order to avoid the blocking of the pure water flow by the reinforcing ribs 35, the reinforcing ribs 35 may be disposed at the water outlet end of the water storage member 30, thereby reducing the space occupation of the water gap 12 by the reinforcing ribs 35. In practical applications, the number of the reinforcing ribs 35 may be plural and arranged at intervals along the axial direction of the water storage member 30. In addition, the reinforcing ribs 35 can be provided with through water gaps along the axial direction so as to improve the flow of pure water in the water gap 12.
In combination with the above embodiment of the abutment rib 34, it will be understood that the free end of the abutment rib 34 should protrude from the reinforcing rib 35 and abut against the inner wall of the central tube 10, so that the water gap 12 can be formed between the reinforcing rib 35 and the central tube 10, thereby improving the flow rate of pure water.
In an embodiment, as shown in fig. 4 and 6, the unidirectional conduction device comprises a unidirectional valve, the unidirectional valve comprises a valve body 41, a valve core 42 and a reset piece 43, the valve body 41 is in sealing fit with the water inlet, the valve body 41 is provided with a water inlet 411, a water outlet 412 and a water channel 413 communicated with the water inlet 411 and the water outlet 412, and the valve core 42 is movably arranged in the water channel 413 and is used for blocking or opening the water inlet 411 under the action of the reset piece 43 or water flow. In this embodiment, the water inlet of the water storage member is provided in a cylindrical shape, and the valve body 41 is hermetically fitted with the water inlet through a seal ring. The valve core 42 can move along the axial direction of the valve body 41, the valve core 42 is provided with a conducting position and a blocking position on the moving track, when the valve core 42 is acted by water flow outside the water inlet 411, the valve core 42 moves to the conducting position to open the water inlet, when the valve core 42 is not acted by water flow outside the water inlet 411, the valve core 42 moves to the blocking position to close the water inlet under the action of the resetting piece 43, thereby enabling water flow to push the valve core 42 only in one direction to enter the water channel 413, and realizing that water flow only in one direction enters the water storage piece.
Specifically, the water outlet end of the valve body 41 is provided with a supporting member 44, the restoring member 43 is an elastic member, one end of the elastic member abuts against the supporting member 44, and the other end abuts against the valve core 42. In this embodiment, when the water flow pushes the valve core 42 from the outside, the valve core 42 compresses the elastic member, and at this time, the elastic member has elastic potential energy for restoring the original shape, and when the water flow is reduced, the elastic member pushes the valve core 42 to restore the original shape, so that the valve core 42 moves reversely to close the water inlet 411. The inner wall of the water inlet 411 is convexly provided with a limiting ring, and the valve core 42 can be in sealing abutting connection with the limiting ring through a sealing ring.
In practical application, the supporting member 44 includes a limiting cylinder 441 and a connecting rib 442 connecting the limiting cylinder 441 and the valve body 41, the valve core 42 includes a water blocking portion 421 and a limiting portion 422, the limiting portion 422 is slidably matched with the limiting cylinder 441, the elastic member is sleeved with the limiting cylinder 441, one end of the elastic member abuts against the connecting rib 442, and the other end of the elastic member abuts against the limiting portion 422. In this embodiment, the supporting member 44 further includes an engagement cylinder extending along the circumferential direction of the limiting cylinder 441, and the connecting rib 442 connects the limiting cylinder 441 and the engagement cylinder, and the engagement cylinder is inserted into the valve body 41 from the water outlet 412 and is fixedly engaged with the valve body 41. The limiting part 422 is in sliding fit with the limiting cylinder 441 to prevent the valve core 42 from deviating from the motion track, and improve the stability of the check valve.
The invention also provides a water purifying device which comprises a reverse osmosis filter element, and the specific structure of the reverse osmosis filter element refers to the embodiment, and as the water purifying device adopts all the technical schemes of all the embodiments, the water purifying device at least has all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted herein.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (12)
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910771205.2A CN112403274B (en) | 2019-08-20 | 2019-08-20 | Reverse osmosis filter element and water purification equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910771205.2A CN112403274B (en) | 2019-08-20 | 2019-08-20 | Reverse osmosis filter element and water purification equipment |
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| CN112403274A CN112403274A (en) | 2021-02-26 |
| CN112403274B true CN112403274B (en) | 2025-09-02 |
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| CN113307404B (en) * | 2021-06-01 | 2022-09-02 | 佛山市顺德区阿波罗环保器材有限公司 | Filtering component and water purifying equipment with same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206508818U (en) * | 2017-01-12 | 2017-09-22 | 浙江沁园水处理科技有限公司 | Reverse osmosis membrane filter element component and the water purifier with reverse osmosis membrane filter element component |
| CN210674817U (en) * | 2019-08-20 | 2020-06-05 | 佛山市顺德区美的饮水机制造有限公司 | Reverse osmosis filter element and water purification equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018161441A1 (en) * | 2017-03-07 | 2018-09-13 | 佛山市顺德区美的饮水机制造有限公司 | Water purification system |
| CN208553775U (en) * | 2018-06-27 | 2019-03-01 | 艾欧史密斯（中国）环境电器有限公司 | Filter assemblies and water purifier |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206508818U (en) * | 2017-01-12 | 2017-09-22 | 浙江沁园水处理科技有限公司 | Reverse osmosis membrane filter element component and the water purifier with reverse osmosis membrane filter element component |
| CN210674817U (en) * | 2019-08-20 | 2020-06-05 | 佛山市顺德区美的饮水机制造有限公司 | Reverse osmosis filter element and water purification equipment |
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| CN112403274A (en) | 2021-02-26 |
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