CN214171418U - Reverse osmosis check valve with elastic sheet type valve core and water purification system using same - Google Patents
Reverse osmosis check valve with elastic sheet type valve core and water purification system using same Download PDFInfo
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- CN214171418U CN214171418U CN202120125869.4U CN202120125869U CN214171418U CN 214171418 U CN214171418 U CN 214171418U CN 202120125869 U CN202120125869 U CN 202120125869U CN 214171418 U CN214171418 U CN 214171418U
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Abstract
The utility model discloses a reverse osmosis check valve with a spring sheet type valve core and a water purification system using the same, which comprises a valve body and a valve core; the valve core comprises a cylinder, a sliding sheet and a spring; a flow guide hole which is communicated from top to bottom is formed in the cylinder body; a plurality of flow guide grooves are formed in the inner side surface of the inner side edge of the upper end part of the cylinder body, and a gap is formed between each flow guide groove and the upper side surface of the sliding sheet; when the water pressure below the valve core is higher than the water pressure above the valve core, the sliding sheet slides upwards to close the diversion hole under the action of the pressure in the direction from bottom to top, and the water below the valve core flows upwards into the upper part of the water pipeline through a gap between the diversion groove and the upper side surface of the sliding sheet. The utility model also provides a water purification system, which comprises a reverse osmosis check valve with a spring sheet type valve core; the reverse water flow flushing device has the function of reducing the water pressure and the flow speed of reverse water flow for flushing the RO reverse osmosis membrane, and can prolong the service life of the RO reverse osmosis filter element.
Description
Technical Field
The utility model relates to a water purification unit technical field especially relates to a reverse osmosis check valve that contains shell fragment formula case and use its water purification system.
Background
The water purifier comprises a pretreatment filter element, a post-treatment filter element and an RO reverse osmosis filter element in the prior art, wherein water flow needs to pass through the pretreatment filter element, the RO reverse osmosis filter element and the post-treatment filter element successively to complete a purification process, after the RO reverse osmosis filter element is used for a period of time, water in tap water, inorganic salts, heavy metal ions, organic matters, colloids, bacteria, viruses and other impurities are deposited on the outer side of the RO osmosis membrane, pure water filtered by the RO osmosis membrane is positioned on the inner side of the RO osmosis membrane, and when the water purifier is in a standby state for a long time, ions of tap water on the outer side of the RO osmosis membrane and ions of impurity substances in waste water can be gradually diffused into the pure water on the inner side of the RO osmosis membrane, so that the TDS value of the pure water reserved in the RO reverse osmosis filter element is increased; when the pure water output is started again, the TDS value in the effluent of the front section is higher, and the body health of a user is seriously influenced.
In order to reduce the TDS value of the pure water existing in the RO reverse osmosis filter element, the reverse washing is carried out on the inner side of the RO osmotic membrane by adopting the input water of the flushing pipeline in the prior art, because the reverse pressure resistance of the RO osmotic membrane is far lower than the forward pressure resistance of the RO osmotic membrane, the damage is caused on the inner side of the RO osmotic membrane due to the overlarge water pressure of the reverse washing, and the service life of the RO reverse osmosis filter element is shortened.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a reverse osmosis check valve that contains shell fragment formula case and use its water purification system can effectively reduce the pressure and the velocity of flow of the inboard rivers of reverse washing RO osmotic membrane.
To achieve the purpose, the utility model adopts the following technical proposal:
a reverse osmosis check valve containing a spring sheet type valve core is arranged on a water outlet pipeline of an RO reverse osmosis filter core and comprises a valve body and the valve core;
the valve body is provided with a water pipeline which is communicated from top to bottom, the upper port of the water pipeline is communicated with the water outlet of the RO reverse osmosis filter element, and the lower port of the water pipeline outputs purified water filtered by the RO reverse osmosis filter element; the valve core is detachably fixed in the middle of the water pipeline;
the valve core comprises a cylinder, a sliding sheet and a spring; the cylinder body is an elastic body;
a flow guide hole and an installation seat which are communicated from top to bottom are formed in the cylinder body, and the sliding sheet and the spring are installed in the flow guide hole;
the inner side edge of the upper end part of the cylinder body extends towards the center and protrudes inwards into the flow guide hole, the upper side surface of the sliding sheet abuts against the lower side surface of the inner side edge, the upper end of the spring abuts against the lower side surface of the sliding sheet, and the lower end of the spring abuts against the upper side surface of the mounting seat;
a plurality of flow guide grooves are formed in the inner side face of the inner side edge, and a gap is formed between each flow guide groove and the upper side face of the sliding piece;
when the water pressure above the valve core is higher than that below the valve core, the slide sheet slides downwards to open the diversion hole under the action of the pressure in the direction from top to bottom;
when the water pressure below the valve core is higher than the water pressure above the valve core, the sliding sheet slides upwards to close the diversion hole under the action of the pressure in the direction from bottom to top, and the water below the valve core flows upwards into the upper part of the water pipeline through a gap between the diversion groove and the upper side surface of the sliding sheet.
Preferably, the diameter of the upper side face of the circular slide sheet is smaller than that of the circumference where the inner side edge of the upper end of the cylinder body is located;
the diameter of the lower side surface of the circular sliding sheet is larger than that of the circumference where the inner side edge of the upper end of the cylinder body is located;
the outer side surface of the sliding sheet is a conical surface with a small upper part and a large lower part, and the lower side angle of the inner side edge of the barrel body is abutted against the middle part of the outer side surface of the sliding sheet which is the conical surface;
a gap is arranged between the guide groove and the outer side surface of the sliding piece.
Preferably, the inner conduit also comprises a ring body;
the inner side surface of the water pipeline is provided with an installation groove matched with the shape and the size of the circumferential outer side surface of the inner conduit and the circumferential outer side surface of the barrel, and the inner conduit and the barrel are installed in the installation groove;
a plurality of fixing strips protruding outwards from the circumference are arranged on the outer circumferential side surface of the inner conduit, and the fixing strips are inserted into fixing grooves correspondingly arranged on the inner side surface of the water pipeline; the circumferential outer side surface of the inner conduit is abutted against the inner side surface of the water pipeline;
the upper side surface of the inner guide pipe is abutted against the circular lower side surface of the lower end of the cylinder body; the circumferential outer side surface of the cylinder body is abutted against the circumferential inner side surface of the water pipeline; the circular lower side surface of the upper end of the cylinder body is abutted against the upper side surface of the mounting groove.
Preferably, the device further comprises an elastic pipe clamp assembly;
the elastic pipe clamp assembly comprises a fixing ring and an elastic pipe clamp;
the two annular fixing rings are respectively clamped in the ports at the upper end and the lower end of the water pipeline;
the annular elastic pipe clamp is clamped in the fixed ring, and the outer end of the elastic pipe clamp, which is far away from the center of the valve core, protrudes outwards from the upper port or the lower port of the water pipeline; the inner end of the elastic pipe clamp extending into the water pipeline is a free end, the inner end of the elastic pipe clamp inwards protrudes out of the inner end of the fixing ring, a gap is formed between the outer side surface of the elastic pipe clamp inwards protruding out of the fixing ring and the inner side surface of the water pipeline, and the part of the elastic pipe clamp inwards protruding out of the fixing ring is provided with a plurality of arc-shaped elastic sheets which are arranged on the same circumference at intervals.
Preferably, the device also comprises an elastic pipe hoop;
the two annular elastic pipe hoops are arranged in the water pipeline and respectively close to the inner ends of the two elastic pipe clamps; the elastic pipe hoop is an elastic body.
Preferably, the sealing ring is also included;
the outer circumferential side surface of the cylinder body is also provided with a sealing groove, and the sealing groove is close to the upper end part of the cylinder body; the sealing ring is sleeved on the sealing groove, and the outer side surface of the sealing ring is abutted against the inner side surface of the water pipeline.
Preferably, a fixing column extending downwards is arranged in the middle of the lower side surface of the sliding sheet;
the middle part of the mounting seat is provided with a fixing hole extending from top to bottom, the outer side surface of the circumference of the mounting seat is provided with a plurality of connecting blocks protruding outwards, and two ends of each connecting block are respectively connected with the inner side surface of the cylinder and the outer side surface of the mounting seat;
a gap is formed between every two adjacent connecting blocks, and the flow guide holes are communicated with the lower part of the water pipeline below the valve core through the gap formed between every two adjacent connecting blocks;
the upper end of the fixed column is connected with the middle part of the lower side surface of the sliding sheet, and the lower end of the fixed column penetrates through the middle part of the spring and is slidably inserted into the fixed hole.
Preferably, a plurality of grooves which are correspondingly matched with the shape and the size of the outer side surface of the fixing ring and the outer side surface of the elastic pipe hoop are respectively arranged in the water pipeline;
the fixing ring and the elastic pipe hoop are respectively arranged in the corresponding grooves.
Furthermore, a water purification system is also provided, which comprises an RO reverse osmosis filter element and the reverse osmosis check valve containing the spring sheet type valve core;
the filter also comprises a PP cotton filter element, a front activated carbon filter element and a rear activated carbon filter element;
and the reverse osmosis check valve containing the elastic sheet type valve core is arranged on a pipeline for outputting purified water to the rear active carbon filter core by the RO reverse osmosis filter core.
The water purification system not only has the water purification and filtration functions of the quadruple filter element, but also can control the water pressure below the valve core 2 through the pressure of the internal water storage of the rear activated carbon filter element, so as to further control the flow rate and the pressure of reverse water flow to reduce the damage to the RO osmotic membrane, and further prolong the service life of the water purification system.
The utility model has the advantages that: in the normal water making process of the water purification system, pure water filtered by the RO reverse osmosis filter element flows in from the lower end of the water pipeline, and the reverse osmosis check valve is in forward conduction at the moment; and in the process that the water purification system carries out reverse flushing on the RO reverse osmosis filter element, pure water stored in the rear end of the water purification system flows in from the lower end of the water pipeline, the pure water entering the water pipeline presses the slide sheet to the flow guide holes and seals the flow guide holes, the pure water in the water pipeline can only seep out to the upper part of the water pipeline from a gap between the flow guide groove and the upper side surface of the slide sheet, and the water flowing area is small, so that the water pressure and the flow rate of the pure water can be effectively reduced, the pressure of the pure water entering the RO reverse osmosis filter element from the water outlet of the RO reverse osmosis filter element is extremely low in the process that the water purification system carries out reverse flushing on the RO reverse osmosis filter element, the back pressure born by an RO membrane in the RO reverse osmosis filter element can be avoided as far as possible, a better protection effect is achieved when the reverse flushing is carried out on the RO reverse osmosis filter element, and the RO reverse osmosis filter element can have a longer service life in the long-term reverse flushing process, the use cost of the user can be reduced. In addition, the reverse osmosis check valve that contains shell fragment formula case of this application can also install in the current arbitrary water purification system that has the backwash function to reequip existing water purification system, protect with the RO reverse osmosis filter core to among the water purification system.
Drawings
FIG. 1 is an exploded view of a component of a reverse osmosis check valve having a leaf spring type valve element according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the reverse osmosis check valve with a leaf spring type valve core shown in FIG. 1;
FIG. 3 is a schematic structural view of the valve cartridge of FIG. 1;
FIG. 4 is a cross-sectional structural schematic view of the valve cartridge of FIG. 2;
FIG. 5 is a perspective cross-sectional view of the valve cartridge of FIG. 2;
FIG. 6 is a schematic cross-sectional view of the valve body of FIG. 1;
wherein: a valve body 1; a valve core 2; an inner duct 3; an elastic pipe clamp assembly 4; an elastic pipe hoop 5; a water passage 11; a cylinder 21; a slip sheet 22; a spring 23; a fixed ring 41; an elastic tube clamp 42; a flow guide hole 211; a mount 212; a seal groove 213; fixed column 221 and guiding gutter 2111.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical solution of the present invention will be further explained with reference to fig. 1-6.
A reverse osmosis check valve containing a spring sheet type valve core is arranged on a water outlet pipeline of an RO reverse osmosis filter core and comprises a valve body 1 and a valve core 2;
the valve body 1 is provided with a water pipeline 11 which is communicated from top to bottom, the upper port of the water pipeline 11 is communicated with the water outlet of the RO reverse osmosis filter element, and the lower port of the water pipeline 11 outputs purified water filtered by the RO reverse osmosis filter element; the valve core 2 is detachably fixed in the middle of the water pipeline 11;
the valve core 2 comprises a cylinder 21, a slide sheet 22 and a spring 23; the cylinder body 21 is an elastic body;
a flow guide hole 211 and an installation seat 212 which are communicated from top to bottom are formed in the cylinder body 21, and the slide sheet 22 and the spring 23 are installed in the flow guide hole 211;
the inner side edge of the upper end of the cylinder 21 extends towards the center and protrudes inwards into the flow guide hole 211, the upper side surface of the slide sheet 22 abuts against the lower side surface of the inner side edge, the upper end of the spring 23 abuts against the lower side surface of the slide sheet 22, and the lower end of the spring 23 abuts against the upper side surface of the mounting seat 212;
a plurality of flow guide grooves 2111 are formed in the inner side face of the inner side edge, and a gap is formed between the flow guide grooves 2111 and the upper side face of the slide sheet 22;
when the water pressure above the valve core 2 is higher than the water pressure below the valve core, the slide sheet 22 slides downwards to open the diversion hole 211 under the action of the pressure in the direction from top to bottom;
when the water pressure below the valve element 2 is higher than the water pressure above the valve element, the slide plate 22 slides upward to close the diversion hole 211 under the pressure in the bottom-up direction, and the water below the valve element 2 flows upward into the upper part of the water passage 11 through the gap between the diversion groove 2111 and the upper side surface of the slide plate 22.
In the normal water making process of the water purifying system, pure water filtered by the RO reverse osmosis filter element flows in from the lower end of the water pipeline, and the reverse osmosis check valve is in forward conduction at the moment; and in the process that the water purification system carries out reverse flushing on the RO reverse osmosis filter element, pure water stored in the rear end of the water purification system flows in from the lower end of the water pipeline, the pure water entering the water pipeline presses the slide sheet to the flow guide holes and seals the flow guide holes, the pure water in the water pipeline can only seep out to the upper part of the water pipeline from a gap between the flow guide groove and the upper side surface of the slide sheet, and the water flowing area is small, so that the water pressure and the flow rate of the pure water can be effectively reduced, the pressure of the pure water entering the RO reverse osmosis filter element from the water outlet of the RO reverse osmosis filter element is extremely low in the process that the water purification system carries out reverse flushing on the RO reverse osmosis filter element, the back pressure born by an RO membrane in the RO reverse osmosis filter element can be avoided as far as possible, a better protection effect is achieved when the reverse flushing is carried out on the RO reverse osmosis filter element, and the RO reverse osmosis filter element can have a longer service life in the long-term reverse flushing process, the use cost of the user can be reduced. In addition, the reverse osmosis check valve that contains shell fragment formula case of this application can also install in the current arbitrary water purification system that has the backwash function to reequip existing water purification system, protect with the RO reverse osmosis filter core to among the water purification system.
Preferably, the diameter of the upper side surface of the circular slide piece 22 is smaller than the diameter of the circumference where the inner side edge of the upper end of the cylinder 21 is located;
the diameter of the lower side surface of the circular slide piece 22 is larger than that of the circumference where the inner side edge of the upper end of the cylinder 21 is located;
the outer side surface of the sliding sheet 22 is a conical surface with a small upper part and a large lower part, and the lower side angle of the inner side edge of the cylinder 21 is abutted against the middle part of the outer side surface of the sliding sheet 22 which is a conical surface;
a gap is arranged between the guide groove 2111 and the outer side surface of the sliding sheet 22.
As shown in fig. 2 and 4, the lateral surface of gleitbretter 22 is big end down's circular conical surface, the downside angle at the inboard border of barrel 21 supports in for the circular conical surface the middle part of gleitbretter 22's lateral surface, guiding gutter 2111 with be equipped with the clearance between the lateral surface of gleitbretter 22, work as when the water pressure of the below of case 2 is greater than the water pressure of top, gleitbretter 22 receives from the pressure effect of lower-to-upper direction to close upwards to slide and close guiding hole 211 makes the water in the water pipeline only can ooze from the clearance between the lateral surface of gleitbretter and the guiding gutter to control the pressure and the speed of the reverse rivers through this clearance, and then ensure the utility model discloses the pressure and the water velocity of the reverse rivers that contain the reverse osmosis check valve output of the shell fragment formula case can not too big.
Preferably, the inner conduit 3 further comprises a torus;
the inner side surface of the water pipeline 11 is provided with an installation groove matched with the shape and the size of the circumferential outer side surface of the inner conduit 3 and the circumferential outer side surface of the cylinder 21, and the inner conduit 3 and the cylinder 21 are installed in the installation groove;
a plurality of fixing strips protruding outwards from the circumference are arranged on the outer side surface of the circumference of the inner conduit 3, and the fixing strips are inserted into fixing grooves correspondingly arranged on the inner side surface of the water pipeline 11; the circumferential outer side surface of the inner conduit 3 is abutted against the inner side surface of the water passage 11;
the upper side surface of the inner conduit 3 is abutted against the circular lower side surface of the lower end of the cylinder 21; the circumferential outer side surface of the cylinder 21 is abutted against the circumferential inner side surface of the water passage 11; the circular lower side surface of the upper end of the cylinder body 21 is abutted against the upper side surface of the mounting groove.
As shown in fig. 1 and 2, the cylinder 21 is fixed between the upper side of the mounting groove and the upper side of the inner conduit 3, and the upper side of the inner conduit 3 is pressed against the circular lower side of the lower end of the cylinder 21; work as case 2 receives from bottom to top or when from top to bottom pressure barrel 2 can not influenced and remove, from improving case 2's fixed stability, and then improve contain the validity of the operation of the reverse osmosis check valve of shell fragment formula case.
Preferably, the device also comprises an elastic pipe clamp assembly 4;
the elastic pipe clamp assembly 4 comprises a fixing ring 41 and an elastic pipe clamp 42;
the two annular fixing rings 41 are respectively clamped in the ports at the upper end and the lower end of the water pipeline 11;
the annular elastic pipe clamp 42 is inserted into the fixing ring 41, and the outer end of the elastic pipe clamp 42, which is far away from the center of the valve core 2, protrudes outwards from the upper port or the lower port of the water pipeline 11; the inner end of the elastic pipe clamp 42 extending into the water pipe 11 is a free end, the inner end of the elastic pipe clamp 42 inwardly protrudes from the inner end of the fixing ring 41, a gap is provided between the outer side surface of the elastic pipe clamp 42 inwardly protruding from the fixing ring 41 and the inner side surface of the water pipe 11, and the portion of the elastic pipe clamp 42 inwardly protruding from the fixing ring 41 is a plurality of arc-shaped elastic pieces arranged at intervals on the same circumference.
As shown in fig. 1 and 2, the elastic tube clamp 42 having a plurality of arc-shaped elastic pieces can improve the stability of fixing the water tubes inserted into the upper and lower ends of the water passage pipe 11, thereby improving the sealability of the ports at the upper and lower ends of the water passage pipe 11.
Preferably, the device also comprises a stretch pipe hoop 5;
the two annular elastic pipe hoops 5 are arranged in the water pipeline 11 and respectively close to the inner ends of the two elastic pipe clamps 42; the elastic pipe hoop 5 is an elastic body.
As shown in fig. 1 and 2, the elastic pipe clamps 5 are installed near the inner ends of the two elastic pipe clamps 42, so that the stability of fixing the water pipes in the upper and lower ends of the water passage pipe 11 can be further improved, and the sealing performance of the upper and lower ends of the reverse osmosis check valve with the leaf spring type valve core can be improved, thereby improving the effectiveness of the valve core 2 deformed by the water pressure.
Preferably, a sealing ring 6 is also included;
the circumferential outer side surface of the cylinder 21 is further provided with a sealing groove 213, and the sealing groove 213 is close to the upper end part of the cylinder 21; the sealing ring 6 is sleeved in the sealing groove 213, and the outer side surface of the sealing ring 6 abuts against the inner side surface of the water pipeline 11.
The sealing ring 6 is fitted in the sealing groove 213, and the outer side surface of the sealing ring 6 abuts against the inner side surface of the water passage 11, so that the stability of the valve element 2 in mounting can be improved, and the sealing performance of the water passage 11 above the valve element 2 can be improved.
Preferably, a fixing column 221 extending downwards is arranged in the middle of the lower side surface of the sliding sheet 22;
a fixing hole extending from top to bottom is formed in the middle of the mounting seat 212, a plurality of outwards-protruding connecting blocks are arranged on the outer side face of the circumference of the mounting seat 212, and two ends of each connecting block are respectively connected with the inner side face of the cylinder 21 and the outer side face of the mounting seat 212;
a gap is formed between every two adjacent connecting blocks, and the flow guide hole 211 is communicated with the lower part of the water pipeline 11 below the valve core 2 through the gap formed between every two adjacent connecting blocks;
the upper end of the fixed column 221 is connected with the middle of the lower side surface of the sliding vane 22, and the lower end of the fixed column 221 passes through the middle of the spring 23 and is slidably inserted into the fixed hole.
As shown in fig. 2, 3 and 4, the lower end of the fixing column 221 passes through the middle slidable part of the spring 23 and is inserted into the fixing hole, so that the stability of the installation of the sliding piece 22 can be further improved, thereby avoiding the deviation of the sliding piece 22 when being pressed, and further improving the stability of the operation of the reverse osmosis check valve with the elastic piece type valve core.
Preferably, a plurality of grooves which are correspondingly matched with the shape and size of the outer side surface of the fixing ring 41 and the outer side surface of the elastic pipe hoop 5 are respectively arranged in the water pipeline 11;
the fixing ring 41 and the elastic pipe hoop 5 are respectively arranged in the corresponding grooves.
As shown in fig. 1 and 2, a plurality of grooves corresponding to the shapes and sizes of the fixing ring 41 and the outer side surface of the elastic tube clamp 5 are respectively arranged in the water passage pipe 11, and the fixing ring 41 and the elastic tube clamp 5 are respectively installed in the corresponding grooves, so that the installation stability of the fixing ring 41 and the elastic tube clamp 5 in the water passage pipe 11 can be improved, and the sealing performance and the operation stability of the reverse osmosis check valve with the leaf spring type valve core can be further improved.
Furthermore, the utility model also provides a water purification system, which comprises an RO reverse osmosis filter element and the reverse osmosis check valve containing the spring sheet type valve core;
the filter also comprises a PP cotton filter element, a front activated carbon filter element and a rear activated carbon filter element;
and the reverse osmosis check valve containing the elastic sheet type valve core is arranged on a pipeline for outputting purified water to the rear active carbon filter core by the RO reverse osmosis filter core.
Water purification system, including RO reverse osmosis filter core, the cotton filter core of PP, leading activated carbon filter core, rearmounted activated carbon filter core and the reverse osmosis check valve that contains shell fragment formula case, not only have the water purification filtering capability of quadruple filter core, still have the self-cleaning performance of RO osmotic membrane, the purity of the purified water of output is high, the long service life of RO reverse osmosis filter core to overall structure is compact, has the little advantage of occupation space.
The water pressure below the valve core 2 can be controlled by controlling the pressure of the water stored in the rear activated carbon filter element, so that the flow speed and the pressure of reverse water flow are controlled, the damage to an RO osmotic membrane is reduced, and the service life of the water purification system is prolonged.
To sum up, the reverse osmosis check valve with the spring plate type valve core of the utility model comprises a valve body 1 and a valve core 2, wherein the valve core 2 of the spring plate type valve core 2 comprises a cylinder body 21, a sliding sheet 22 and a spring 23; a guide hole 211 and a plurality of guide grooves 2111 are formed in the cylinder body 21 of the elastic body; the reverse osmosis check valve with the spring sheet type valve core is arranged in a water outlet pipeline of the RO reverse osmosis filter core, when the RO reverse osmosis filter core is in a normal working state and keeps a state of continuously outputting purified water, the water pressure above the valve core 2 is greater than that below the valve core, the slide sheet 22 slides downwards under the action of the pressure in the direction from top to bottom to open the flow guide hole 211, and the purified water treated by the RO reverse osmosis filter core passes through the flow guide hole 211 from top to bottom to normally convey the purified water.
When the RO reverse osmosis filter element is still in a working state but the purified water below stops outputting, the water pressure below the valve core 2 continuously increases until the RO reverse osmosis filter element is closed and stops working, once the RO reverse osmosis filter element stops working, when the water pressure below the valve core 2 is greater than the water pressure above the valve core, the slide plate 22 slides upwards under the action of the pressure from bottom to top to close the diversion hole 211, the water below the valve core 2 flows upwards into the upper part of the water communication pipeline 11 through the gap between the diversion groove 2111 and the upper side surface of the slide plate 22, the water pressure of the purified water reversely passing through the valve core 2 is rapidly reduced to form a trickle flow to reach the inner side of the RO osmosis membrane, and then the RO osmosis membrane is reversely cleaned, and the pressure of the reverse flow is small, so the RO osmosis membrane is not damaged. In this way, the RO permeable membrane is cleaned but not destroyed. Therefore, the reverse osmosis check valve that contains shell fragment formula case can effectively reduce the pressure and the velocity of flow of the rivers that reverse washing RO osmotic membrane, thereby improve the life of RO osmotic filter core, and make and install the water purification system that contains the reverse osmosis check valve of shell fragment formula case has the self-cleaning performance of RO osmotic membrane, and the high TDS value of the purity of the purified water of output is up to standard moreover.
As shown in fig. 1-6, the reverse osmosis check valve containing the leaf spring type valve core further comprises an inner pipe 3, a fixing ring 41, an elastic pipe clamp 42 and an elastic pipe hoop 5, and the inner part of the water pipeline 11 is respectively provided with the fixing ring 41, the elastic pipe hoop 5 and a groove matched with the shape and size of the outer side surface of the inner pipe 3, the fixing ring 41, the elastic pipe hoop 5 and the inner pipe 3 are respectively installed in the corresponding grooves, so that the stability of the fixing ring 41, the elastic pipe hoop 5 and the inner pipe 3 installed in the water pipeline 11 is improved, and the stability of the operation of the reverse osmosis check valve containing the leaf spring type valve core is improved.
Furthermore, the utility model also provides a water purification system using the reverse osmosis check valve with the spring sheet type valve core, which comprises an RO reverse osmosis filter element, the reverse osmosis check valve with the spring sheet type valve core, a PP cotton filter element, a front activated carbon filter element and a rear activated carbon filter element; the reverse osmosis check valve containing the elastic sheet type valve core is installed on a purified water pipeline which is output to the rear active carbon filter core by the RO reverse osmosis filter core, and can have the functions of reducing the water pressure and the flow speed of reverse water flow inside the reverse washing RO osmosis membrane, and the damage to the RO osmosis membrane is reduced by further controlling the flow speed and the pressure of the reverse water flow through the water storage pressure of the rear active carbon filter core, so that the service life of the water purification system is prolonged.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (9)
1. A reverse osmosis check valve containing a spring sheet type valve core is arranged on a water outlet pipeline of an RO reverse osmosis filter core and is characterized by comprising a valve body and a valve core;
the valve body is provided with a water pipeline which is communicated from top to bottom, the upper port of the water pipeline is communicated with the water outlet of the RO reverse osmosis filter element, and the lower port of the water pipeline outputs purified water filtered by the RO reverse osmosis filter element; the valve core is detachably fixed in the middle of the water pipeline;
the valve core comprises a cylinder, a sliding sheet and a spring; the cylinder body is an elastic body;
a flow guide hole and an installation seat which are communicated from top to bottom are formed in the cylinder body, and the sliding sheet and the spring are installed in the flow guide hole;
the inner side edge of the upper end part of the cylinder body extends towards the center and protrudes inwards into the flow guide hole, the upper side surface of the sliding sheet abuts against the lower side surface of the inner side edge, the upper end of the spring abuts against the lower side surface of the sliding sheet, and the lower end of the spring abuts against the upper side surface of the mounting seat;
a plurality of flow guide grooves are formed in the inner side face of the inner side edge, and a gap is formed between each flow guide groove and the upper side face of the sliding piece;
when the water pressure above the valve core is higher than that below the valve core, the slide sheet slides downwards to open the diversion hole under the action of the pressure in the direction from top to bottom;
when the water pressure below the valve core is higher than the water pressure above the valve core, the sliding sheet slides upwards to close the diversion hole under the action of the pressure in the direction from bottom to top, and the water below the valve core flows upwards into the upper part of the water pipeline through a gap between the diversion groove and the upper side surface of the sliding sheet.
2. The reverse osmosis check valve with a leaf spring type valve core according to claim 1, wherein the diameter of the upper side surface of the circular slide sheet is smaller than the diameter of the circumference where the inner side edge of the upper end of the cylinder body is located;
the diameter of the lower side surface of the circular sliding sheet is larger than that of the circumference where the inner side edge of the upper end of the cylinder body is located;
the outer side surface of the sliding sheet is a conical surface with a small upper part and a large lower part, and the lower side angle of the inner side edge of the barrel body is abutted against the middle part of the outer side surface of the sliding sheet which is the conical surface;
a gap is arranged between the guide groove and the outer side surface of the sliding piece.
3. The reverse osmosis check valve with a leaf spring type valve core according to claim 1, further comprising an inner conduit of a circular ring body;
the inner side surface of the water pipeline is provided with an installation groove matched with the shape and the size of the circumferential outer side surface of the inner conduit and the circumferential outer side surface of the barrel, and the inner conduit and the barrel are installed in the installation groove;
a plurality of fixing strips protruding outwards from the circumference are arranged on the outer circumferential side surface of the inner conduit, and the fixing strips are inserted into fixing grooves correspondingly arranged on the inner side surface of the water pipeline; the circumferential outer side surface of the inner conduit is abutted against the inner side surface of the water pipeline;
the upper side surface of the inner guide pipe is abutted against the circular lower side surface of the lower end of the cylinder body; the circumferential outer side surface of the cylinder body is abutted against the circumferential inner side surface of the water pipeline; the circular lower side surface of the upper end of the cylinder body is abutted against the upper side surface of the mounting groove.
4. The reverse osmosis check valve with a leaf spring type valve core according to claim 3, further comprising an elastic pipe clamp assembly;
the elastic pipe clamp assembly comprises a fixing ring and an elastic pipe clamp;
the two annular fixing rings are respectively clamped in the ports at the upper end and the lower end of the water pipeline;
the annular elastic pipe clamp is clamped in the fixed ring, and the outer end of the elastic pipe clamp, which is far away from the center of the valve core, protrudes outwards from the upper port or the lower port of the water pipeline; the inner end of the elastic pipe clamp extending into the water pipeline is a free end, the inner end of the elastic pipe clamp inwards protrudes out of the inner end of the fixing ring, a gap is formed between the outer side surface of the elastic pipe clamp inwards protruding out of the fixing ring and the inner side surface of the water pipeline, and the part of the elastic pipe clamp inwards protruding out of the fixing ring is provided with a plurality of arc-shaped elastic sheets which are arranged on the same circumference at intervals.
5. The reverse osmosis check valve with a leaf spring type valve core according to claim 4, further comprising an elastic pipe hoop;
the two annular elastic pipe hoops are arranged in the water pipeline and respectively close to the inner ends of the two elastic pipe clamps; the elastic pipe hoop is an elastic body.
6. The reverse osmosis check valve with a leaf spring type valve core according to claim 1, further comprising a sealing ring;
the outer circumferential side surface of the cylinder body is also provided with a sealing groove, and the sealing groove is close to the upper end part of the cylinder body; the sealing ring is sleeved on the sealing groove, and the outer side surface of the sealing ring is abutted against the inner side surface of the water pipeline.
7. The reverse osmosis check valve with a leaf spring type valve core according to claim 1, wherein a fixing column extending downwards is arranged in the middle of the lower side surface of the sliding sheet;
the middle part of the mounting seat is provided with a fixing hole extending from top to bottom, the outer side surface of the circumference of the mounting seat is provided with a plurality of connecting blocks protruding outwards, and two ends of each connecting block are respectively connected with the inner side surface of the cylinder and the outer side surface of the mounting seat;
a gap is formed between every two adjacent connecting blocks, and the flow guide holes are communicated with the lower part of the water pipeline below the valve core through the gap formed between every two adjacent connecting blocks;
the upper end of the fixed column is connected with the middle part of the lower side surface of the sliding sheet, and the lower end of the fixed column penetrates through the middle part of the spring and is slidably inserted into the fixed hole.
8. The reverse osmosis check valve with the elastic sheet type valve core according to claim 5, wherein a plurality of grooves which are correspondingly matched with the shape and the size of the outer side surface of the fixing ring and the outer side surface of the elastic pipe hoop are respectively arranged in the water pipeline;
the fixing ring and the elastic pipe hoop are respectively arranged in the corresponding grooves.
9. A water purification system comprising an RO reverse osmosis cartridge and the reverse osmosis check valve comprising a leaf spring type cartridge of any one of claims 1 to 8;
the filter also comprises a PP cotton filter element, a front activated carbon filter element and a rear activated carbon filter element;
and the reverse osmosis check valve containing the elastic sheet type valve core is arranged on a pipeline for outputting purified water to the rear active carbon filter core by the RO reverse osmosis filter core.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120125869.4U CN214171418U (en) | 2021-01-18 | 2021-01-18 | Reverse osmosis check valve with elastic sheet type valve core and water purification system using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120125869.4U CN214171418U (en) | 2021-01-18 | 2021-01-18 | Reverse osmosis check valve with elastic sheet type valve core and water purification system using same |
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| CN214171418U true CN214171418U (en) | 2021-09-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116983097A (en) * | 2023-09-06 | 2023-11-03 | 首都医科大学附属北京同仁医院 | Tray with operation cavity flushing water supply groove |
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2021
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116983097A (en) * | 2023-09-06 | 2023-11-03 | 首都医科大学附属北京同仁医院 | Tray with operation cavity flushing water supply groove |
| CN116983097B (en) * | 2023-09-06 | 2024-03-12 | 首都医科大学附属北京同仁医院 | Tray with operation cavity flushing water supply groove |
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