CN216344035U - Multi-gear waste water valve and water purifying equipment - Google Patents

Abstract

The utility model relates to the technical field of valves, in particular to a multi-gear waste water valve and water purifying equipment. The valve core assembly rotates around an axis and drives the water passing holes to selectively communicate one water passing channel with the water outlet, so that the switching of the flow paths with different flow rates is realized, the adjustment of different net waste water ratios is realized, and the multi-gear waste water valve capable of adjusting the net waste water ratios is provided.

Description

Multi-gear waste water valve and water purifying equipment

Technical Field

The utility model relates to the technical field of valves, in particular to a multi-gear waste water valve and water purifying equipment.

Background

Purifier in the existing market generally adopts reverse osmosis membrane technique, increases the pressure of running water before the membrane through the booster pump pressurization, obtains the water purification after reverse osmosis membrane filters, increases the waste water valve simultaneously on the waste water flow path and throttles to realize reverse osmosis membrane possesses sufficient pressure before the membrane and is used for purifying. In the prior art, only one throttling hole is formed in a reverse osmosis membrane waste water valve, so that the clean waste water ratio of the water purifier is constant, but actually, when a user uses the water purifier in a poor water quality area, in order to ensure that the clean waste water ratio of the water purifier is generally lower, the throttling hole diameter of the waste water valve with a larger size is needed; when a user uses the water purifier in a region with better water quality, the water purifier is higher in clean wastewater ratio and needs a smaller-sized wastewater valve throttling aperture for the reason that the water quality condition is better and the reverse osmosis membrane is not easy to block, so that the water purifier can save more water for the user to use, the clean wastewater ratio of the water purifier is generally higher, and the water purifier with the fixed clean wastewater ratio in the prior art cannot adapt to the difference of water quality of various regions, so that the reverse osmosis membrane quickly pollutes or wastes fresh water resources.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the present invention is to overcome the defect of the prior art that the net-to-waste ratio cannot be adjusted, and to provide a multi-stage waste water valve capable of adjusting the net-to-waste ratio.

The utility model aims to solve another technical problem of overcoming the defect that the clean-to-waste water ratio of the water purifying equipment in the prior art cannot be adjusted, thereby providing the water purifying equipment capable of adjusting the clean-to-waste water ratio.

In order to solve the technical problem, the utility model provides a multi-gear waste water valve, which comprises:

the valve seat is constructed with a water inlet cavity, a plurality of throttling holes communicated with the water inlet cavity and a plurality of water passing channels arranged in one-to-one correspondence with the throttling holes, the water passing channels are arranged at intervals, the size of each throttling hole is different, and each water passing channel is communicated with the water inlet cavity through the corresponding throttling hole;

the valve core assembly is provided with a water passing port, the first end of the water passing port is suitable for being communicated with the water outlet, the valve core assembly is suitable for rotating around an axis, and the second end of the water passing port is driven to be selectively communicated with one water passing channel.

Optionally, the multi-stage waste valve further comprises:

the ejector pin components are movably arranged in the water passing cavity of the valve seat, each ejector pin component corresponds to one throttle hole, each ejector pin component comprises an ejector pin, each ejector pin is arranged at one end of each ejector pin component, each ejector pin is suitable for extending into the throttle hole when the corresponding flow path is turned off, and each ejector pin is also suitable for exiting from the throttle hole when the corresponding flow path is turned on.

Optionally, the size of the ejector pin is matched with the size of the corresponding throttle hole. Optionally, the throttle hole includes: a first orifice, a second orifice, and a third orifice;

the water passage includes: the water inlet valve comprises a first water passing channel, a second water passing channel, a third water passing channel and a fourth water passing channel, wherein the first water passing channel, the second water passing channel and the third water passing channel are suitable for being communicated with a cavity where a valve core assembly is located through a first throttling hole, a second throttling hole and a third throttling hole respectively, and the fourth water passing channel is suitable for being directly communicated with the cavity where the valve core assembly is located.

Optionally, the valve core assembly further includes:

a valve core;

the first sealing element is sleeved on the valve core and is suitable for forming a plurality of sealing cavities together with the valve core and the valve seat, wherein one sealing cavity comprises the water passing opening, and the sealing cavity is suitable for only covering one water passing channel.

Optionally, the thimble assembly includes: and the first thimble assembly, the second thimble assembly and the third thimble assembly are respectively suitable for being matched with the first throttling hole, the second throttling hole and the third throttling hole.

Optionally, the multi-stage waste valve further comprises: the elastic device is connected with the ejector pin assembly and is suitable for providing elastic force for the ejector pin assembly;

and the fixed cover is arranged at one end of the water passing cavity, which is far away from the throttling hole, is abutted against one end of the elastic device, which is far away from the thimble, is suitable for sealing the water passing cavity and provides supporting force for the elastic device.

Optionally, the multi-stage waste valve further comprises: the valve cover is arranged above the valve seat, is connected with the valve seat and is suitable for forming the water inlet cavity together with the valve seat.

Optionally, the multi-stage waste valve further comprises: and the driving device is connected with the valve core assembly and is suitable for driving the valve core assembly to rotate.

Optionally, the multi-stage waste valve further comprises: and the water inlet is arranged on the valve seat and is suitable for being communicated with the water inlet cavity.

The utility model provides a water purification apparatus, comprising:

a filter element;

a water inlet pipeline and a waste water pipeline;

the waste water pipeline is connected with the multi-gear waste water valve.

The technical scheme of the utility model has the following advantages:

1. the utility model provides a multi-stage waste water valve, which is characterized in that a valve seat is provided with a water inlet cavity, a plurality of throttling holes communicated with the water inlet cavity and a plurality of water passing channels arranged in one-to-one correspondence with the throttling holes, the water passing channels are arranged at intervals, a plurality of flow paths separated from each other are formed in the valve seat, the flow rate of each flow path is different by arranging the throttling holes at different sizes, a water passing port is arranged on a valve core component, the valve core component rotates around an axis and drives the water passing port to selectively communicate one water passing channel with a water outlet, the switching of the flow paths with different flow rates is realized, the adjustment of different net waste water ratios is realized, and the flow paths are concentrated in the valve seat and the valve core component, so that the flow paths are shorter, the pressure loss is smaller, and the flow paths are more integrated, the water leakage risk is small, the operation is simple, and the user experience is favorably improved.

2. According to the multi-level waste water valve provided by the utility model, the plurality of ejector pin assemblies are movably arranged in the water passing cavity of the valve seat, each ejector pin assembly corresponds to one throttle hole, the ejector pin of each ejector pin assembly is suitable for extending into the throttle hole when the corresponding flow path is closed, and retreats from the throttle hole when the corresponding flow path is conducted, so that when the throttle hole is blocked, the ejector pin is inserted into the throttle hole to dredge the throttle hole, and the blockage of the throttle hole is effectively prevented; and the movement of the ejector pin component is realized according to the water pressure change whether the water passing port is communicated with the water passing channel or not, the ejector pin component can be automatically pushed to move without an additional driving device, the operation is convenient, and the user experience is further improved.

3. According to the multi-gear waste water valve provided by the utility model, the first water passing channel, the second water passing channel and the third water passing channel which are provided with the water passing channels are respectively communicated with the water inlet cavity and the cavity where the valve core assembly is arranged through the first throttling hole, the second throttling hole and the third throttling hole, and due to the fact that the size of the throttling holes on each flow path is different, three flow paths with different flow rates are formed; meanwhile, the water passing channel further comprises a fourth water passing channel, the fourth water passing channel is directly communicated with the water inlet cavity and the cavity where the valve core assembly is located, and no throttling hole is arranged in the flow path, so that the water passing amount is sufficient, the water flow is large, the flushing in the valve body is realized, and the blockage is effectively prevented.

4. According to the multi-gear waste water valve provided by the utility model, the valve core provided with the valve core assembly is provided with the water passing port, so that the valve core assembly is used for communicating one water passing channel with a water outlet through the water passing port, meanwhile, a first sealing piece provided with the valve core assembly is sleeved on the valve core and forms a plurality of sealing cavities together with the valve core and the valve seat, one sealing cavity comprises the water passing port, the periphery of the water passing port is sealed, the periphery of each water passing channel is sealed, water can only flow out through the water passing channel communicated with the water passing port, and water leakage is avoided.

5. According to the multi-gear waste water valve, the elastic device and the fixed cover are arranged, the elastic device is connected with the ejector pin assembly, the fixed cover is abutted against one end, far away from the ejector pin, of the elastic device, so that elastic force is provided for the ejector pin assembly, when no water flows, the ejector pin of the ejector pin assembly is inserted into the throttle hole under the action of the elastic device, when water flows, the elastic device is compressed under the action of water pressure, the ejector pin assembly is driven to move towards the direction far away from the throttle hole, and the ejector pin is withdrawn from the throttle hole, so that the movement of the ejector pin assembly is realized, and the automation degree of the device is improved.

6. According to the multi-gear waste water valve, the driving device is connected with the valve core assembly, and the driving device drives the valve core assembly to rotate, so that the integral automation degree is effectively enhanced, and the user experience feeling 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 used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is an exploded view of the multi-stage waste valve of the present invention;

FIG. 2 is a schematic view of the assembly of the multi-position waste valve of the present invention;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a view in the direction A-A of FIG. 3 with the orifice closed;

FIG. 5 is a view in the direction A-A in FIG. 3 with the orifice open;

FIG. 6 is a schematic view of the valve seat of the present invention;

FIG. 7 is a view taken in the direction B-B of FIG. 6;

FIG. 8 is a view in the direction C-C of FIG. 6;

fig. 9 is a partial enlarged view of portion E of fig. 8;

FIG. 10 is a schematic structural view of the valve core assembly of the present invention;

FIG. 11 is a view taken in the direction D-D of FIG. 10;

FIG. 12 is a top view of FIG. 10;

FIG. 13 is an exploded view of the valve cartridge assembly of the present invention;

FIG. 14 is a schematic view of a modified multi-position waste valve configuration;

fig. 15 is a schematic view of another modified multi-stage waste valve structure.

Description of reference numerals:

1. a valve seat; 111. a first orifice; 112. a second orifice; 113. a third orifice; 121. A first water passage; 122. a second water passage; 123. a third water passage; 124. a fourth water passage; 13. a water inlet cavity; 141. a first water passing cavity; 142. a second water passing cavity; 143. a third water passing cavity; 15. a water inlet; 16. a water outlet;

2. a valve core assembly; 21. a valve core; 211. a water outlet; 22. a first seal member; 23. a second seal member;

3. a valve cover; 41. a first thimble assembly; 42. a second thimble assembly; 43. a third thimble assembly; 5. An elastic device; 6. a fixed cover; 71. a third seal member; 72. a fourth seal member; 8. pressing a plate; 9. A drive device.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

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

Example one

Referring to fig. 1 to 15, the present embodiment provides a multi-stage waste valve, including:

the valve seat 1 is provided with a water inlet cavity 13, a plurality of throttling holes communicated with the water inlet cavity 13 and a plurality of water passing channels arranged in one-to-one correspondence with the throttling holes, the water passing channels are arranged at intervals, the size of each throttling hole is different, and each water passing channel is communicated with the water inlet cavity 13 through the corresponding throttling hole;

the valve core assembly 2 is provided with a water passing port 211, a first end of the water passing port 211 is suitable for being communicated with the water outlet 16, the valve core assembly 2 is suitable for rotating around an axis, and a second end of the water passing port 211 is driven to be selectively communicated with one water passing channel.

It should be noted that the multi-stage waste water valve provided in this embodiment is disposed on a waste water pipeline of the water purifying apparatus, and throttle holes of different sizes are selected according to different water quality conditions of actual use areas, so as to select a required ratio of clean water to waste water, thereby avoiding the phenomena that the water purifying apparatus cannot reach a normal service life in an area with poor water quality, rapid pollution failure occurs, and fresh water resources are wasted in an area with good water quality, and achieving the long service life and water saving requirements of the water purifying apparatus.

It should be noted that, the first end of the water passing hole 211 refers to one end of the water passing hole 211 communicating with the water outlet, the second end refers to the other end of the water passing hole 211 opposite to the first end, and the water passing hole 211 communicates with the outside through the first end and the second end; the water passing channels and the throttling holes are arranged and communicated with the water passing cavity at the same time, and the number of the water passing cavities is equal to that of the throttling holes, so that the water passing channels and the throttling holes are arranged in a one-to-one correspondence mode.

The multi-stage waste water valve provided by this embodiment is configured with the water inlet cavity 13, the plurality of orifices communicated with the water inlet cavity 13, and the plurality of water passing channels arranged in one-to-one correspondence with the plurality of orifices on the valve seat 1, the plurality of water passing channels are arranged at intervals, so as to form a plurality of flow paths spaced from each other in the valve seat 1, and realize different flow rates of each flow path by setting different sizes of each orifice, by arranging the water passing port 211 on the valve core assembly 2, the valve core assembly 2 rotates around the axis and drives the water passing port 211 to selectively communicate one water passing channel with the water outlet 16, so as to realize switching of flow paths with different flow rates, thereby realizing adjustment of different net waste water ratios, and by concentrating the flow paths in the valve seat 1 and the valve core assembly 2, the runner is short, pressure loss is small, the runner is integrated, water leakage risk is small, operation is simple, and user experience is improved. .

Specifically, the multi-stage waste valve further comprises: the ejector pin components are movably arranged in the water passing cavity of the valve seat 1, each ejector pin component corresponds to one throttle hole, each ejector pin component comprises an ejector pin, each ejector pin is arranged at one end of each ejector pin component, each ejector pin is suitable for extending into the corresponding throttle hole when the corresponding flow path is turned off, and each ejector pin is further suitable for exiting the corresponding throttle hole when the corresponding flow path is turned on.

In the multi-level waste water valve provided by the embodiment, a plurality of ejector pin assemblies are movably arranged in the water passing cavity of the valve seat 1, each ejector pin assembly corresponds to one throttle hole, the ejector pin of each ejector pin assembly is suitable for extending into the throttle hole when the corresponding flow path is closed, and exits from the throttle hole when the corresponding flow path is connected, so that when the throttle hole is blocked, the ejector pin is inserted into the throttle hole to dredge the throttle hole, and the blockage is effectively prevented; and the movement of the ejector pin component is realized according to the water pressure change whether the water passing port 211 is communicated with the water passing channel or not, the ejector pin component can be automatically pushed to move without an additional driving device, the operation is convenient, and the user experience is further improved. Specifically, the size of the ejector pin is matched with the size of the corresponding throttle hole.

Specifically, the orifice includes: a first orifice 111, a second orifice 112, and a third orifice 113;

the water passage includes: the valve core assembly comprises a first water passing channel 121, a second water passing channel 122, a third water passing channel 123 and a fourth water passing channel 124, wherein the first water passing channel 121, the second water passing channel 122 and the third water passing channel 123 are suitable for being respectively communicated with a cavity where the valve core assembly 2 is located through the first throttling hole 111, the second throttling hole 112 and the third throttling hole 113, and the fourth water passing channel 124 is suitable for being directly communicated with the cavity where the valve core assembly 2 is located and the water inlet cavity 13.

Optionally, the water passing cavity comprises: the first water passing cavity 141, the second water passing cavity 142 and the third water passing cavity 143 are respectively arranged corresponding to the first thimble assembly 41, the second thimble assembly 42 and the third thimble assembly 43.

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 that the flow rates of the flow paths in which the first throttle hole 111, the second throttle hole 112, and the third throttle hole 113 are located are different, when the multi-stage waste water valve needs to operate at the first flow rate, the valve core assembly 2 is rotated to communicate the water passing hole 211 with the first water passing channel 121, water in the water inlet cavity 13 pushes the first needle assembly 41 open by water pressure, so that the first throttle hole 111 is switched from the closed state to the open state, water flows into the first water passing cavity 141 through the first throttle hole 111, then flows out from the water passing hole 211 after passing through the first water passing channel 121 communicated with the first water passing cavity 141, and thus the multi-stage waste water valve operates at the first flow rate; similarly, when the water heater operates at the second flow rate or the third flow rate, the water passing opening 211 is rotated to be communicated with the second water passing channel 122 or the third water passing channel 123; the fourth water passage 124 is directly communicated with the water inlet cavity 13 and the chamber where the valve core assembly 2 is located, so when the water passing port 211 is communicated with the fourth water passage 124, the water inlet cavity 13 is communicated with the water outlet 16 through the fourth water passage 124 and the water passing port 211, and is not throttled by a small throttle hole, so that the water flow is large, and the inside of the valve body is flushed.

In the multi-stage waste water valve provided by this embodiment, the first water passing channel 121, the second water passing channel 122, and the third water passing channel 123 provided with the water passing channels are respectively communicated with the water inlet cavity 13 and the chamber where the valve core assembly 2 is located through the first throttle hole 111, the second throttle hole 112, and the third throttle hole 113, and because the sizes of the throttle holes on each flow path are different, three flow paths with different flow rates are formed; meanwhile, the water passing channel also comprises a fourth water passing channel 124, the fourth water passing channel 124 is directly communicated with the water inlet cavity 13 and the cavity where the valve core assembly 2 is located, and no throttling hole is arranged in the flow path, so that the water passing amount is sufficient, the water flow is large, the flushing in the valve body is realized, and the blockage is effectively prevented.

Specifically, the valve core assembly 2 further includes:

a valve core 21;

the first sealing element 22 is sleeved on the valve element 21, the first sealing element 22 is suitable for forming a plurality of sealing cavities together with the valve element 21 and the valve seat 1, one of the sealing cavities comprises the water passing opening 211, and the sealing cavity is suitable for only covering one water passing channel.

Optionally, at least a portion of the inside of the valve core 21 is configured as a hollow structure, one end of the hollow structure is communicated with the water passing opening 211, the other end of the hollow structure is communicated with the water outlet 16, and the water passing opening 211 is communicated with the water outlet 16 via the hollow structure.

Optionally, the number of the sealed cavities is 4, and the 4 sealed cavities can respectively and correspondingly cover the first water passing channel 121, the second water passing channel 122, the third water passing channel 123 and the fourth water passing channel 124.

When a certain throttle hole is selected, the valve core assembly 2 is rotated to drive the seal cavity provided with the water passing port 211 to rotate along with the seal cavity until the water passing channel corresponding to the throttle hole is communicated, and at this time, a flow path where the throttle hole is located is communicated.

Optionally, the valve core assembly 2 further includes: the second sealing element 23 is sleeved on the valve element 21 and is suitable for strengthening and sealing the valve element 21 and the valve seat 1, so that the assembly sealing effect of the valve element 21 and the valve seat 1 is more reliable.

According to the multi-gear waste water valve provided by the embodiment, the valve core 21 of the valve core assembly 2 is provided with the water passing port 211, so that the valve core assembly 2 communicates one water passing channel with the water outlet 16 through the water passing port 211, meanwhile, the first sealing member 22 of the valve core assembly 2 is sleeved on the valve core 21 and forms a plurality of sealing cavities together with the valve core 21 and the valve seat 1, wherein one of the sealing cavities comprises the water passing port 211, so that the periphery of the water passing port 211 and the periphery of each water passing channel are sealed, and water can only flow out through the water passing channel communicated with the water passing port 211, thereby avoiding water leakage.

Specifically, the thimble assembly includes: the first needle assembly 41, the second needle assembly 42 and the third needle assembly 43 are respectively adapted to cooperate with the first throttle hole 111, the second throttle hole 112 and the third throttle hole 113.

Optionally, a sealing element is arranged on the ejector pin assembly and is suitable for being in sealing connection with the valve seat 1.

Specifically, the multi-stage waste valve further comprises: the elastic device 5 is connected with the ejector pin assembly and is suitable for providing elastic force for the ejector pin assembly;

and the fixed cover 6 is arranged at one end of the water passing cavity, which is far away from the throttling hole, is abutted against one end of the elastic device 5, which is far away from the thimble, is suitable for sealing the water passing cavity and provides supporting force for the elastic device 5.

Optionally, a sealing member is disposed between the fixed cover 6 and the valve seat 1, and is adapted to sealingly connect the fixed cover 6 and the valve seat 1.

It should be noted that, when the multi-stage waste water valve selects a certain orifice to operate, after the whole water inlet cavity 13 is filled with inlet water, due to the flow-limiting effect, the water pressure of the system gradually rises, and when the water pressure reaches a certain height, the ejector pin assembly is pushed away, so that the ejector pin is away from the orifice, thereby opening the orifice, when the multi-stage waste water valve is switched to a flushing state, that is, when the fourth water passage is communicated with the water passing port 211, the water pressure of the water inlet cavity 13 is reduced, the ejector pin assembly is pushed by the elastic device 5, and the ejector pin is inserted into the orifice, thereby realizing the dredging of the orifice, and when the orifice is dirty and blocked, the ejector pin can be pushed open, thereby ensuring the smooth flow path.

The multi-gear waste water valve provided by the embodiment is characterized in that the elastic device 5 and the fixed cover 6 are arranged, the elastic device 5 is connected with the ejector pin assembly, the fixed cover 6 is abutted to one end, far away from the ejector pin, of the elastic device 5 to provide elastic force for the ejector pin assembly, when no water flows, the ejector pin of the ejector pin assembly is inserted into the throttle hole under the action force of the elastic device 5, when the water flows, the elastic device 5 is compressed under the action of water pressure to drive the ejector pin assembly to move in the direction far away from the throttle hole, and the ejector pin is withdrawn from the throttle hole, so that the ejector pin assembly moves, and the automation degree of the device is improved.

Specifically, the multi-stage waste valve further comprises: and the valve cover 3 is arranged above the valve seat 1, is connected with the valve seat 1 and is suitable for forming the water inlet cavity 13 together with the valve seat 1.

Optionally, the multi-stage waste valve further comprises: and a third sealing member 71 and a fourth sealing member 72 which are arranged between the valve cover 3 and the valve seat 1 and are suitable for sealing and connecting the valve cover 3 and the valve seat 1.

Optionally, the valve cover 3 is detachably connected to the valve seat 1, and further optionally, the connection mode between the valve cover 3 and the valve seat 1 includes a screw connection.

Optionally, the connection mode of the valve cover 3 and the valve seat 1 further includes buckling connection, rivet connection, and welding connection.

Optionally, the multi-stage waste valve further comprises: and the pressing plate 8 is arranged between the valve cover 3 and the screw, and the pressing plate 8 is made of high-strength metal. It should be noted that, the valve cover 3 is generally made of plastic, and due to the strength, it is easy to deform after production and assembly, which may cause the non-uniform peripheral pressing seal and local water leakage, and therefore, the pressing plate 8 is added as a reinforcing plate, so that the fixing and pressing are more uniform and reliable.

Note that the above refers to an upper direction in the up-down direction indicated by an arrow in fig. 2.

Specifically, the multi-stage waste valve further comprises: and the driving device 9 is connected with the valve core assembly 2, and the driving device 9 is suitable for driving the valve core assembly 2 to rotate.

Optionally, the driving device 9 is a stepping motor, a rotating shaft of the stepping motor abuts against the corresponding installation position of the valve core assembly 2, and the valve core assembly 2 is driven to rotate by a motor shaft.

Optionally, the driving device 9 is detachably mounted on the valve cover 3 or other positions on the multi-stage waste water valve body, and the driving device 9 is fixed through bolts.

The multi-gear waste water valve provided by the embodiment is characterized in that the driving device 9 is connected with the valve core assembly 2, and the driving device 9 drives the valve core assembly 2 to rotate, so that the overall automation degree is effectively enhanced, and the improvement of the user experience is facilitated.

Specifically, the multi-stage waste valve further comprises: and the water inlet 15 is arranged on the valve seat 1 and is suitable for being communicated with the water inlet cavity 13.

As a modification, as shown in fig. 14, compared with the above embodiment, the thimble assembly at the orifice and the elastic device 5 are eliminated, and the modified multi-stage waste valve still has the function of switching different flow rates, but does not have the anti-blocking function, and is easy to be clogged and failed under the condition of bad water quality or long-term use.

As a modification, as shown in fig. 15, compared with the above embodiment, if the flow hole is arranged on the valve seat 1 instead of on the valve core assembly 2, the valve core assembly 2 is changed from the original arrangement of only one water passing opening 211 in one of the seal cavities to the arrangement of 3 other seal cavities corresponding to the first, second and third flow holes, and the function of switching different flow rates is also provided.

Example two

Referring to fig. 1 to 15, the present embodiment provides a water purifying apparatus, including:

a filter element;

a water inlet pipeline and a waste water pipeline;

the waste water pipeline is connected with the multi-gear waste water valve.

The water purification unit that this embodiment provided, through setting be connected with on the waste water pipeline and keep off the waste water valve as above, through keep off the waste water valve more and select to use not unidimensional orifice, realize the switching to the flow path of different flow sizes to the realization is to the regulation of different net waste water ratios, can be different according to the quality of water condition in the in-service use area and be suitable net waste water ratio operation is selected to the water purification unit, thereby avoid the filter core of water purification unit can't reach normal life, quick pollution inefficacy in the poor area of quality of water, and the phenomenon of the extravagant fresh water resources in the good area of quality of water, realize water purification unit's long-life and water conservation requirement, and then promote user experience.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.

Claims (11)

1. A multi-position waste valve, comprising:

the valve seat (1) is constructed with a water inlet cavity (13), a plurality of throttling holes communicated with the water inlet cavity (13) and a plurality of water passing channels arranged in one-to-one correspondence with the throttling holes, the water passing channels are arranged at intervals, the size of each throttling hole is different, and each water passing channel is communicated with the water inlet cavity (13) through the corresponding throttling hole;

the valve core assembly (2) is provided with a water passing port (211), a first end of the water passing port (211) is suitable for being communicated with a water outlet (16), and the valve core assembly (2) is suitable for rotating around an axis and driving a second end of the water passing port (211) to be selectively communicated with one water passing channel.

2. The multi-stage waste water valve of claim 1, further comprising:

the ejector pin components are movably arranged in the water passing cavity of the valve seat (1), each ejector pin component corresponds to one throttle hole, each ejector pin component comprises an ejector pin, each ejector pin is arranged at one end of each ejector pin component, each ejector pin is suitable for extending into the corresponding throttle hole when the corresponding flow path is turned off, and each ejector pin is further suitable for exiting the corresponding throttle hole when the corresponding flow path is turned on.

3. The multi-position waste valve of claim 2, wherein said spike is sized to match a corresponding size of said orifice.

4. The multi-position waste valve of claim 2, wherein said orifice comprises: a first orifice (111), a second orifice (112), and a third orifice (113);

the water passage includes: the valve core assembly comprises a first water passing channel (121), a second water passing channel (122), a third water passing channel (123) and a fourth water passing channel (124), wherein the first water passing channel (121), the second water passing channel (122) and the third water passing channel (123) are suitable for being communicated with a cavity where the valve core assembly (2) is located through a first throttling hole (111), a second throttling hole (112) and a third throttling hole (113) respectively, and the fourth water passing channel (124) is suitable for being directly communicated with the cavity where the valve core assembly (2) is located through the water inlet cavity (13).

5. Multi-position waste water valve according to claim 4, characterized in that said spool assembly (2) further comprises:

a valve element (21);

the first sealing element (22) is sleeved on the valve core (21), the first sealing element (22) is suitable for forming a plurality of sealing cavities together with the valve core (21) and the valve seat (1), one of the sealing cavities comprises the water passing opening (211), and the sealing cavity is suitable for only covering one water passing channel.

6. The multi-position waste valve of claim 5, wherein said needle assembly comprises: the first ejector pin assembly (41), the second ejector pin assembly (42) and the third ejector pin assembly (43) are respectively suitable for being matched with the first throttling hole (111), the second throttling hole (112) and the third throttling hole (113).

7. The multi-position waste water valve of claim 2, further comprising: the elastic device (5) is connected with the ejector pin assembly and is suitable for providing elastic force for the ejector pin assembly;

and the fixed cover (6) is arranged at one end of the water passing cavity, which is far away from the throttling hole, is abutted against one end of the elastic device (5), which is far away from the thimble, is suitable for sealing the water passing cavity and provides supporting force for the elastic device (5).

8. The multi-stage waste water valve of claim 1, further comprising: the valve cover (3) is arranged above the valve seat (1), connected with the valve seat (1) and suitable for forming the water inlet cavity (13) together with the valve seat (1).

9. The multi-stage waste water valve of claim 1, further comprising: the driving device (9) is connected with the valve core assembly (2), and the driving device (9) is suitable for driving the valve core assembly (2) to rotate.

10. The multi-position waste water valve of any of claims 1-9, further comprising: the water inlet (15) is arranged on the valve seat (1) and is suitable for being communicated with the water inlet cavity (13).

11. A water purification apparatus, comprising:

a filter element;

a water inlet pipeline and a waste water pipeline;

a multi-stage waste water valve as claimed in any one of claims 1 to 10 connected to the waste water pipeline.

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