A multi-speed wastewater valve and water purification equipment

Abstract

The present invention relates to the field of valve technology, and specifically to a multi-speed wastewater valve and water purification equipment. By arranging a valve seat with a water inlet cavity, a plurality of throttling holes connected to the water inlet cavity, and a plurality of water passages corresponding to the plurality of throttling holes, the plurality of water passages are arranged at intervals, so as to form a plurality of flow paths spaced from each other in the valve seat, and by setting the size of each throttling hole to be different, the flow rate of each flow path is different, and by arranging a water passage on the valve core assembly, the valve core assembly rotates around the axis and drives the water passage to selectively connect one of the water passages with the water outlet, so as to switch the flow paths with different flow rates, thereby adjusting the different net wastewater ratios, and thus providing a multi-speed wastewater valve capable of adjusting the net wastewater ratio.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, and in particular to a multi-speed wastewater valve and water purification equipment. Background Art

[0002] At present, the water purification devices on the market generally adopt reverse osmosis membrane technology, which increases the tap water pressure in front of the membrane by pressurizing with a booster pump, obtains purified water after filtering through the reverse osmosis membrane, and adds a wastewater valve to the wastewater flow path for throttling, so as to achieve sufficient pressure in front of the membrane for purification. The wastewater valve of the reverse osmosis membrane in the prior art has only one throttling hole, resulting in a certain net wastewater ratio of the water purifier. However, in fact, when the user uses it in a poor water quality area, in order to ensure the life of the water purifier, the net wastewater ratio generally takes a lower value, and a larger wastewater valve throttling aperture is required; and when the user uses it in a better water quality area, due to the better water quality, the reverse osmosis membrane is not easy to be blocked. Therefore, in order to save water for users, the net wastewater ratio of the water purifier generally takes a higher value, and a smaller wastewater valve throttling aperture is required. Therefore, the water purifier with a fixed net wastewater ratio in the prior art cannot adapt to the differences in water quality in various places, resulting in the problem of rapid pollution of the reverse osmosis membrane or waste of fresh water resources. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the net wastewater ratio cannot be adjusted in the prior art, thereby providing a multi-speed wastewater valve that can adjust the net wastewater ratio.

[0004] Another technical problem to be solved by the present invention is to overcome the defect that the net waste water ratio of the water purification equipment in the prior art cannot be adjusted, thereby providing a water purification equipment capable of adjusting the net waste water ratio.

[0005] In order to solve the above technical problems, the present invention provides a multi-speed wastewater valve, comprising:

[0006] The valve seat is constructed with a water inlet cavity, a plurality of throttling holes connected to the water inlet cavity, and a plurality of water passages arranged one by one corresponding to the plurality of throttling holes, the plurality of water passages are arranged at intervals, the size of each throttling hole is different, and each water passage is connected to the water inlet cavity through the corresponding throttling hole;

[0007] The valve core assembly is provided with a water outlet, the first end of the water outlet is suitable for communicating with the water outlet, and the valve core assembly is suitable for rotating around the axis and driving the second end of the water outlet to selectively communicate with one of the water passages.

[0008] Optionally, the multi-speed wastewater valve further includes:

[0009] A plurality of ejector pin assemblies are movably arranged in the water passage cavity of the valve seat, each of the ejector pin assemblies corresponds to one of the throttling holes, the ejector pin assemblies include an ejector pin, the ejector pin is arranged at one end of the ejector pin assembly, the ejector pin is suitable for extending into the throttling hole when the corresponding flow path is closed, and the ejector pin is also suitable for exiting the throttling hole when the corresponding flow path is connected.

[0010] Optionally, the size of the ejector pin matches the size of the corresponding throttle hole. Optionally, the throttle hole includes: a first throttle hole, a second throttle hole and a third throttle hole;

[0011] The water passage includes: a first water passage, a second water passage, a third water passage and a fourth water passage. The first water passage, the second water passage and the third water passage are suitable for connecting the water inlet chamber and the chamber where the valve core assembly is located via the first throttle hole, the second throttle hole and the third throttle hole respectively. The fourth water passage is suitable for directly connecting the water inlet chamber and the chamber where the valve core assembly is located.

[0012] Optionally, the valve core assembly further includes:

[0013] Valve core;

[0014] The first sealing member is sleeved on the valve core, and is suitable for constructing a plurality of sealing cavities together with the valve core and the valve seat, wherein one of the sealing cavities includes the water outlet, and the sealing cavity is suitable for covering only one of the water passages.

[0015] Optionally, the ejector pin assembly includes: a first ejector pin assembly, a second ejector pin assembly, and a third ejector pin assembly, which are respectively suitable for cooperating with the first throttle hole, the second throttle hole, and the third throttle hole.

[0016] Optionally, the multi-speed wastewater valve further comprises: an elastic device connected to the ejector assembly and adapted to provide an elastic force for the ejector assembly;

[0017] The fixed cover is arranged at one end of the water passage chamber away from the throttling hole and abuts against one end of the elastic device away from the ejector pin, and is suitable for closing the water passage chamber and providing support force for the elastic device.

[0018] Optionally, the multi-speed wastewater valve further includes: a valve cover, which is arranged above the valve seat, connected to the valve seat, and suitable for forming the water inlet chamber together with the valve seat.

[0019] Optionally, the multi-speed wastewater valve further includes: a driving device connected to the valve core assembly, wherein the driving device is suitable for driving the valve core assembly to rotate.

[0020] Optionally, the multi-speed wastewater valve further includes: a water inlet, which is arranged on the valve seat and is suitable for communicating with the water inlet chamber.

[0021] The water purification device provided by the present invention comprises:

[0022] Filter element;

[0023] Inlet and wastewater pipes;

[0024] The wastewater pipeline is connected with the multi-speed wastewater valve as described above.

[0025] The technical solution of the present invention has the following advantages:

[0026] 1. The multi-speed wastewater valve provided by the present invention is provided with a water inlet chamber, a plurality of throttling holes connected to the water inlet chamber, and a plurality of water flow channels arranged in a one-to-one correspondence with the plurality of throttling holes on the valve seat. The plurality of water flow channels are arranged at intervals to achieve a plurality of flow paths spaced from each other in the valve seat, and by setting the size of each throttling hole to be different, the flow rate of each flow path is different. A water flow port is provided on the valve core assembly, and the valve core assembly rotates around the axis and drives the water flow port to selectively connect one of the water flow channels with the water outlet, so as to switch the flow paths with different flow rates, thereby achieving the adjustment of different net wastewater ratios. In addition, by concentrating the flow channel in the valve seat and the valve core assembly, the flow channel is shorter, the pressure loss is smaller, the flow channel is more integrated, the risk of water leakage is smaller, and the operation is simple, which is conducive to improving the user experience.

[0027] 2. The multi-speed wastewater valve provided by the present invention is movably arranged in the water flow cavity of the valve seat by arranging multiple ejector pin assemblies, each of which corresponds to one throttling hole, and the ejector pin of each ejector pin assembly is suitable for extending into the throttling hole when the corresponding flow path is closed, and withdrawing from the throttling hole when the corresponding flow path is connected, so that when the throttling hole is blocked by dirt, the throttling hole can be unblocked by inserting the ejector pin into the throttling hole, thereby effectively preventing dirt blockage; and the movement of the ejector pin assembly is achieved according to the change in water pressure of whether the water outlet and the water flow channel are connected, and the ejector pin assembly can be automatically pushed to move without an additional driving device, which is easy to operate and further improves the user experience.

[0028] 3. The multi-speed wastewater valve provided by the present invention connects the water inlet chamber and the chamber where the valve core assembly is located through the first water passage, the second water passage and the third water passage of the water passage respectively via the first throttling hole, the second throttling hole and the third throttling hole. Since the sizes of the throttling holes on each flow path are different, three flow paths with different flow rates are formed. At the same time, the water passage also includes a fourth water passage, and the fourth water passage directly connects the water inlet chamber and the chamber where the valve core assembly is located. The flow path is not provided with a throttling hole, so that the water flow is sufficient and the water flow is large, thereby achieving flushing in the valve body and effectively preventing blockage.

[0029] 4. The multi-speed wastewater valve provided by the present invention has the water port in the valve core structure of the valve core assembly, so that the valve core assembly connects one of the water flow channels with the water outlet through the water port. At the same time, the first sealing member of the valve core assembly is sleeved on the valve core, and a plurality of sealing cavities are constructed together with the valve core and the valve seat, one of the sealing cavities includes the water port, so as to realize the sealing of the periphery of the water port and the periphery of each water flow channel, so that the water can only flow out through the water flow channel connected with the water port, thereby avoiding water leakage.

[0030] 5. The multi-speed wastewater valve provided by the present invention is provided with an elastic device and a fixed cover. The elastic device is connected to the ejector pin assembly, and the fixed cover abuts against the end of the elastic device away from the ejector pin, thereby providing elastic force to the ejector pin assembly. When there is no water flow, the ejector pin of the ejector pin assembly is inserted into the throttling hole under the action of the elastic device. When there is water flow, the elastic device is compressed under the action of the water pressure, driving the ejector pin assembly to move in a direction away from the throttling hole, and the ejector pin withdraws from the throttling hole, thereby realizing the movement of the ejector pin assembly and improving the degree of automation of the device.

[0031] 6. The multi-speed wastewater valve provided by the present invention is connected to the valve core assembly by arranging a driving device, and the valve core assembly is driven to rotate by the driving device, which effectively enhances the overall degree of automation and is conducive to improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 This is an exploded view of the multi-speed wastewater valve of the present invention;

[0034] Figure 2 It is a schematic diagram of the assembly of the multi-speed wastewater valve of the present invention;

[0035] Figure 3 for Figure 2 A top view of

[0036] Figure 4 When the throttle is closed Figure 3 Middle AA direction view;

[0037] Figure 5 When the throttle is open Figure 3 Middle AA direction view;

[0038] Figure 6 It is a structural schematic diagram of the valve seat of the present invention;

[0039] Figure 7 for Figure 6 Middle BB direction view;

[0040] Figure 8 for Figure 6 Middle CC direction view;

[0041] Fig. 9 for Figure 8 A partial enlarged view of part E in the middle;

[0042] Fig.10 It is a structural schematic diagram of the valve core assembly of the present invention;

[0043] Fig.11 for Fig.10 Middle DD direction view;

[0044] Fig.12 for Fig.10 A top view of

[0045] Fig.13 is an exploded view of the valve core assembly of the present invention;

[0046] Fig.14 It is a schematic diagram of a deformed multi-speed wastewater valve structure;

[0047] Fig.15 It is a schematic diagram of the structure of another deformed multi-speed wastewater valve.

[0048] Description of reference numerals:

[0049] 1. Valve seat; 111. First throttle hole; 112. Second throttle hole; 113. Third throttle hole; 121. First water passage; 122. Second water passage; 123. Third water passage; 124. Fourth water passage; 13. Water inlet chamber; 141. First water passage chamber; 142. Second water passage chamber; 143. Third water passage chamber; 15. Water inlet; 16. Water outlet;

[0050] 2. Valve core assembly; 21. Valve core; 211. Water outlet; 22. First sealing member; 23. Second sealing member;

[0051] 3. Valve cover; 41. First ejector pin assembly; 42. Second ejector pin assembly; 43. Third ejector pin assembly; 5. Elastic device; 6. Fixed cover; 71. Third sealing member; 72. Fourth sealing member; 8. Pressure plate; 9. Driving device. DETAILED DESCRIPTION

[0052] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0056] Embodiment 1

[0057] Combination Figure 1-Figure 15 As shown, the multi-speed wastewater valve provided in this embodiment includes:

[0058] The valve seat 1 is constructed with a water inlet chamber 13, a plurality of throttling holes connected to the water inlet chamber 13, and a plurality of water passages arranged one by one corresponding to the plurality of throttling holes, the plurality of water passages are arranged at intervals, the size of each throttling hole is different, and each water passage is connected to the water inlet chamber 13 through the corresponding throttling hole;

[0059] The valve core assembly 2 is provided with a water outlet 211, the first end of the water outlet 211 is suitable for communicating with the water outlet 16, and the valve core assembly 2 is suitable for rotating around the axis and driving the second end of the water outlet 211 to selectively communicate with one of the water passages.

[0060] It should be noted that the multi-speed wastewater valve provided in this embodiment is arranged on the wastewater pipeline of the water purification equipment. Depending on the water quality conditions in the actual use area, throttling holes of different sizes are selected to select the required net wastewater ratio, thereby avoiding the phenomenon that the water purification equipment cannot reach its normal life and quickly becomes polluted and fails in areas with poor water quality, and wastes fresh water resources in areas with good water quality, thereby achieving the long life and water-saving requirements of the water purification equipment.

[0061] It should be noted that the first end of the water outlet 211 refers to one end of the water outlet 211 connected to the water outlet, and the second end refers to the other end of the water outlet 211 opposite to the first end, and the water outlet 211 is connected to the outside through the first end and the second end; by setting a water passage and a throttling hole and connecting with a water passage cavity at the same time, the number of the water passage cavities is equal to the number of the throttling holes, so that a one-to-one correspondence between the multiple water passages and the multiple throttling holes is achieved.

[0062] The multi-speed wastewater valve provided in the present embodiment is provided with the water inlet chamber 13, a plurality of throttling holes connected to the water inlet chamber 13, and a plurality of water passages corresponding to the plurality of throttling holes on the valve seat 1. The plurality of water passages are arranged at intervals to form a plurality of flow paths spaced from each other in the valve seat 1. By setting the size of each throttling hole to be different, the flow rate of each flow path is different. By arranging the water passage 211 on the valve core assembly 2, the valve core assembly 2 rotates around the axis and drives the water passage 211 to selectively connect one of the water passages with the water outlet 16, so as to switch the flow paths with different flow rates, thereby adjusting the net wastewater ratios. By concentrating the flow path in the valve seat 1 and the valve core assembly 2, the flow path is shorter, the pressure loss is smaller, the flow path is more integrated, the risk of water leakage is smaller, and the operation is simple, which is conducive to improving the user experience.

[0063] Specifically, the multi-speed wastewater valve also includes: a plurality of ejector pin assemblies, which are movably arranged in the water flow cavity of the valve seat 1, each of the ejector pin assemblies corresponds to one of the throttling holes, the ejector pin assembly includes an ejector pin, the ejector pin is arranged at one end of the ejector pin assembly, the ejector pin is suitable for extending into the throttling hole when the corresponding flow path is closed, and the ejector pin is also suitable for exiting the throttling hole when the corresponding flow path is opened.

[0064] The multi-speed wastewater valve provided in this embodiment is movably arranged in the water passage cavity of the valve seat 1 by setting a plurality of ejector pin assemblies, each ejector pin assembly corresponds to a throttle hole, and the ejector pin of each ejector pin assembly is suitable for extending into the throttle hole when the corresponding flow path is closed, and withdrawing from the throttle hole when the corresponding flow path is connected, so that when the throttle hole is blocked by dirt, the ejector pin is inserted into the throttle hole to dredge the throttle hole, effectively preventing dirt blockage; and the movement of the ejector pin assembly is realized according to the water pressure change of whether the water passage 211 and the water passage are connected, and the ejector pin assembly can be automatically pushed to move without an additional driving device, which is easy to operate and further improves the user experience. Specifically, the size of the ejector pin matches the size of the corresponding throttle hole.

[0065] Specifically, the throttle holes include: a first throttle hole 111, a second throttle hole 112 and a third throttle hole 113;

[0066] The water passage includes: a first water passage 121, a second water passage 122, a third water passage 123 and a fourth water passage 124. The first water passage 121, the second water passage 122 and the third water passage 123 are suitable for connecting the water inlet chamber 13 with the chamber where the valve core assembly 2 is located via the first throttle hole 111, the second throttle hole 112 and the third throttle hole 113 respectively. The fourth water passage 124 is suitable for directly connecting the water inlet chamber 13 with the chamber where the valve core assembly 2 is located.

[0067] Optionally, the water passage chamber includes: a first water passage chamber 141, a second water passage chamber 142, and a third water passage chamber 143, which are respectively arranged corresponding to the first ejector pin assembly 41, the second ejector pin assembly 42, and the third ejector pin assembly 43.

[0068] It should be noted that the sizes of the first throttle hole 111, the second throttle hole 112, and the third throttle hole 113 are different, so the flow rates of the flow paths where the first throttle hole 111, the second throttle hole 112, and the third throttle hole 113 are located are different. When the multi-speed wastewater valve needs to operate at a first flow rate, the water port 211 is connected to the first water passage 121 by rotating the valve core assembly 2, and the water in the water inlet chamber 13 pushes the first ejector assembly 41 open by water pressure, so that the first throttle hole 111 is switched from a closed state to an open state, and the water flows into the first water passage chamber 141 through the first throttle hole 111, and then communicates with the first water passage chamber 141 through the valve core assembly 211. The water flows through the first water passage 121 and then is led out through the water passage 211, thereby realizing operation at a first flow rate; similarly, when operating at a second flow rate or a third flow rate, the water passage 211 is rotated to connect with the second water passage 122 or the third water passage 123; the fourth water passage 124 directly connects the water inlet chamber 13 and the chamber where the valve core assembly 2 is located, so when the water passage 211 is connected with the fourth water passage 124, the water inlet chamber 13 is connected with the water outlet 16 via the fourth water passage 124 and the water passage 211, without being throttled by a smaller throttling hole, so the water flow rate is large, thereby realizing flushing of the inside of the valve body.

[0069] The multi-speed wastewater valve provided in this embodiment connects the water inlet chamber 13 with the chamber where the valve core assembly 2 is located through the first water passage 121, the second water passage 122, and the third water passage 123 of the water passage respectively via the first throttling hole 111, the second throttling hole 112, and the third throttling hole 113. Since the sizes of the throttling holes on each flow path are different, three flow paths with different flow rates are formed; at the same time, the water passage also includes a fourth water passage 124, and the fourth water passage 124 directly connects the water inlet chamber 13 with the chamber where the valve core assembly 2 is located. No throttling hole is set in this flow path, so that the water flow is sufficient and the water flow is large, thereby achieving flushing in the valve body and effectively preventing blockage.

[0070] Specifically, the valve core assembly 2 also includes:

[0071] Valve core 21;

[0072] The first sealing member 22 is sleeved on the valve core 21. The first sealing member 22 is suitable for constructing a plurality of sealing cavities together with the valve core 21 and the valve seat 1. One of the sealing cavities includes the water outlet 211, and the sealing cavity is suitable for covering only one water passage.

[0073] Optionally, at least part of the interior of the valve core 21 is constructed as a hollow structure, one end of the hollow structure is connected to the water outlet 211, and the other end is connected to the water outlet 16, and the water outlet 211 is connected to the water outlet 16 via the hollow structure.

[0074] Optionally, the number of the sealed cavities is four, and the four sealed cavities may respectively cover the first water passage 121 , the second water passage 122 , the third water passage 123 and the fourth water passage 124 .

[0075] It should be noted that when a certain throttling hole is selected, by rotating the valve core assembly 2, the sealing cavity provided with the water outlet 211 is driven to rotate to connect with the water passage corresponding to the throttling hole. At this time, the flow path where the throttling hole is located is conductive.

[0076] Optionally, the valve core assembly 2 further includes: a second sealing member 23, which is sleeved on the valve core 21 and is suitable for strengthening the sealing between the valve core 21 and the valve seat 1, so that the sealing effect of the assembly between the valve core 21 and the valve seat 1 is more reliable.

[0077] The multi-speed wastewater valve provided in the present embodiment is configured with the water outlet 211 by arranging the valve core 21 of the valve core assembly 2, so that the valve core assembly 2 connects one of the water passages with the water outlet 16 through the water outlet 211. At the same time, the first sealing member 22 of the valve core assembly 2 is sleeved on the valve core 21, and a plurality of sealing cavities are constructed together with the valve core 21 and the valve seat 1, one of the sealing cavities includes the water outlet 211, so as to realize the sealing around the water outlet 211 and the sealing around each water passage, so that the water can only flow out through the water passage connected with the water outlet 211, thereby avoiding water leakage.

[0078] Specifically, the ejector assembly includes: a first ejector assembly 41 , a second ejector assembly 42 , and a third ejector assembly 43 , which are respectively adapted to cooperate with the first throttle hole 111 , the second throttle hole 112 , and the third throttle hole 113 .

[0079] Optionally, a sealing member is provided on the ejector pin assembly, suitable for being sealedly connected to the valve seat 1 .

[0080] Specifically, the multi-speed wastewater valve further includes: an elastic device 5, connected to the ejector assembly, suitable for providing elastic force to the ejector assembly;

[0081] The fixed cover 6 is arranged at one end of the water passage chamber away from the throttling hole and abuts against one end of the elastic device 5 away from the ejector pin, and is suitable for closing the water passage chamber and providing support force for the elastic device 5.

[0082] Optionally, a sealing member is provided between the fixed cover 6 and the valve seat 1 , which is suitable for sealingly connecting the fixed cover 6 and the valve seat 1 .

[0083] It should be noted that when the multi-speed wastewater valve selects a certain throttling hole for operation, after the water fills the entire water inlet chamber 13, the system water pressure gradually increases due to the flow limiting effect. When the water pressure reaches a certain height, the ejector assembly is pushed open to make the ejector away from the throttling hole, thereby opening the throttling hole. When the multi-speed wastewater valve is switched to the flushing state, that is, the fourth water passage is connected to the water port 211, the water pressure in the water inlet chamber 13 is reduced, and the ejector assembly is pushed by the elastic device 5 to insert the ejector into the throttling hole to clear the throttling hole. When there is dirt blockage in the throttling hole, it can be pushed open by the ejector, thereby ensuring the smooth flow path.

[0084] The multi-speed wastewater valve provided in the present embodiment is provided with the elastic device 5 and the fixed cover 6. The elastic device 5 is connected to the ejector assembly. The fixed cover 6 abuts against the end of the elastic device 5 away from the ejector, thereby providing elastic force to the ejector assembly. When no water flows through, the ejector of the ejector assembly is inserted into the throttle hole under the action of the elastic device 5. When water flows through, the elastic device 5 is compressed under the action of the water pressure, driving the ejector assembly to move in a direction away from the throttle hole, and the ejector withdraws from the throttle hole, thereby realizing the movement of the ejector assembly and improving the degree of automation of the device.

[0085] Specifically, the multi-speed wastewater valve further includes: a valve cover 3 , which is disposed above the valve seat 1 , connected to the valve seat 1 , and is suitable for forming the water inlet chamber 13 together with the valve seat 1 .

[0086] Optionally, the multi-speed wastewater valve further includes: a third sealing member 71 and a fourth sealing member 72 , which are disposed between the valve cover 3 and the valve seat 1 and are suitable for sealingly connecting the valve cover 3 and the valve seat 1 .

[0087] Optionally, the valve cover 3 is detachably connected to the valve seat 1. Further optionally, the connection method between the valve cover 3 and the valve seat 1 includes screw connection.

[0088] Optionally, the connection method between the valve cover 3 and the valve seat 1 also includes snap-fit ​​connection, rivet connection, and welding connection.

[0089] Optionally, the multi-speed wastewater valve further includes: a pressure plate 8, which is arranged between the valve cover 3 and the screw, and the material of the pressure plate 8 is a high-strength metal. It should be noted that the valve cover 3 is generally a plastic part, which is easy to deform after production and assembly due to strength reasons, which may cause uneven compression of the circumferential seal and local water leakage. Therefore, the pressure plate 8 is added as a reinforcing plate to make the fixed compression more uniform and reliable.

[0090] It should be noted that the above refers to Figure 2 The arrow in the middle points to the upward direction.

[0091] Specifically, the multi-speed wastewater valve further includes: a driving device 9 connected to the valve core assembly 2, and the driving device 9 is suitable for driving the valve core assembly 2 to rotate.

[0092] Optionally, the driving device 9 is a stepping motor, the rotating shaft of the stepping motor abuts against the corresponding mounting position of the valve core assembly 2, and the valve core assembly 2 is driven to rotate through the motor shaft.

[0093] Optionally, the driving device 9 is detachably mounted on the valve cover 3 or other positions on the multi-speed wastewater valve body, and the driving device 9 is fixed by bolts.

[0094] The multi-speed wastewater valve provided in this embodiment is connected to the valve core assembly 2 by setting the driving device 9, and the valve core assembly 2 is driven to rotate by the driving device 9, which effectively enhances the overall automation level and is conducive to improving user experience.

[0095] Specifically, the multi-speed wastewater valve further includes: a water inlet 15 , which is arranged on the valve seat 1 and is suitable for communicating with the water inlet chamber 13 .

[0096] As a variation, combined Fig.14 As shown, compared with the above-mentioned embodiment, the ejector pin assembly at the above-mentioned throttling hole and the above-mentioned elastic device 5 are cancelled. The deformed multi-speed wastewater valve still has the function of switching different flow rates, but does not have the anti-clogging function. It is easy to become blocked and fail in the case of poor water quality or long-term use.

[0097] As a variation, combined Fig.15 As shown, compared with the above-mentioned embodiment, the flow hole is changed from being arranged on the valve seat 1 to being arranged on the valve core assembly 2, and the valve core assembly 2 is changed from originally having only one water outlet 211 in one of the sealing cavities to adding the first throttling hole, the second throttling hole and the third throttling hole at the corresponding positions of the other three sealing cavities, and also has the function of switching different flow rates.

[0098] Embodiment 2

[0099] Combination Figure 1-Figure 15 As shown, this embodiment provides a water purification device, including:

[0100] Filter element;

[0101] Inlet and wastewater pipes;

[0102] The wastewater pipeline is connected with the multi-speed wastewater valve as described above.

[0103] The water purification equipment provided in the present embodiment is provided with a multi-speed wastewater valve as described above connected to the wastewater pipeline. Through the multi-speed wastewater valve, throttling holes of different sizes are selected to switch between flow paths with different flow rates, thereby adjusting different net-waste water ratios. The appropriate net-waste water ratio can be selected for the water purification equipment according to the water quality conditions in the actual use area, thereby avoiding the phenomenon that the filter element of the water purification equipment cannot reach its normal service life and quickly becomes polluted and fails in areas with poor water quality, while wasting fresh water resources in areas with good water quality, thereby achieving the long life and water-saving requirements of the water purification equipment, and thus improving the user experience.

[0104] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A multi-speed wastewater valve, characterized in that: include: A valve seat (1) is constructed with a water inlet chamber (13), a plurality of throttling holes connected to the water inlet chamber (13), and a plurality of water passages arranged in one-to-one correspondence with the plurality of throttling holes, each of the throttling holes having a different size, and each of the water passages being connected to the water inlet chamber (13) via the corresponding throttling hole; A valve core assembly (2), wherein a water outlet (211) is provided on the valve core assembly (2), a first end of the water outlet (211) being adapted to communicate with the water outlet (16), and the valve core assembly (2) being adapted to rotate about an axis and drive a second end of the water outlet (211) to selectively communicate with one of the water passages; A plurality of water passages are arranged at intervals around the circumferential direction of the valve core assembly.

2. The multi-speed wastewater valve according to claim 1, characterized in that: Also includes: A plurality of ejector pin assemblies are movably arranged in the water passage cavity of the valve seat (1), each ejector pin assembly corresponds to one of the throttling holes, the ejector pin assembly comprises an ejector pin, the ejector pin is arranged at one end of the ejector pin assembly, the ejector pin is suitable for extending into the throttling hole when the corresponding flow path is closed, and the ejector pin is also suitable for exiting the throttling hole when the corresponding flow path is opened.

3. The multi-speed wastewater valve according to claim 2, characterized in that: The size of the ejector pin matches the size of the corresponding throttle hole.

4. The multi-speed wastewater valve according to claim 2, characterized in that: The throttle holes include: a first throttle hole (111), a second throttle hole (112) and a third throttle hole (113); The water passage comprises: a first water passage (121), a second water passage (122), a third water passage (123) and a fourth water passage (124); the first water passage (121), the second water passage (122) and the third water passage (123) are suitable for connecting the water inlet chamber (13) and the chamber where the valve core assembly (2) is located via the first throttle hole (111), the second throttle hole (112) and the third throttle hole (113) respectively; and the fourth water passage (124) is suitable for directly connecting the water inlet chamber (13) and the chamber where the valve core assembly (2) is located.

5. The multi-speed wastewater valve according to claim 4, characterized in that: The valve core assembly (2) further comprises: Valve core (21); A first sealing member (22) is sleeved on the valve core (21), and the first sealing member (22) is suitable for jointly constructing a plurality of sealing cavities with the valve core (21) and the valve seat (1), wherein one of the sealing cavities includes the water passage (211), and the sealing cavity is suitable for covering only one of the water passages.

6. The multi-speed wastewater valve according to claim 5, characterized in that: The ejector pin assembly comprises: a first ejector pin assembly (41), a second ejector pin assembly (42), and a third ejector pin assembly (43), which are respectively adapted to cooperate with the first throttle hole (111), the second throttle hole (112), and the third throttle hole (113).

7. The multi-speed wastewater valve according to claim 2, characterized in that: Also includes: An elastic device (5), connected to the ejector assembly and suitable for providing an elastic force to the ejector assembly; A fixed cover (6) is arranged at one end of the water passage chamber away from the throttling hole and abuts against one end of the elastic device (5) away from the ejector pin, and is suitable for closing the water passage chamber and providing support force for the elastic device (5).

8. The multi-speed wastewater valve according to claim 1, characterized in that: Also includes: The valve cover (3) is arranged above the valve seat (1), connected to the valve seat (1), and is suitable for forming the water inlet chamber (13) together with the valve seat (1).

9. The multi-speed wastewater valve according to claim 1, characterized in that: Also includes: A driving device (9) is connected to the valve core assembly (2), and the driving device (9) is suitable for driving the valve core assembly (2) to rotate.

10. The multi-speed wastewater valve according to any one of claims 1 to 9, characterized in that: Also includes: A water inlet (15) is arranged on the valve seat (1) and is suitable for communicating with the water inlet chamber (13).

11. A water purification device, characterized in that: include: Filter element; Inlet and wastewater pipes; The wastewater pipeline is connected with a multi-speed wastewater valve as described in any one of claims 1 to 10.

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