Wastewater valve and water purification equipment

Abstract

The utility model discloses a waste water valve and water purification equipment, and the waste water valve comprises a valve body and a sealing assembly; the valve body is provided with a water inlet runner and a water outlet runner. The sealing assembly is arranged in the valve body, a water inlet cavity, a water outlet cavity and a water passing cavity are defined in the valve body, the water inlet cavity communicates with the water inlet runner, and the water outlet cavity communicates with the water outlet runner; the sealing assembly is provided with a first throttling flow channel and a second throttling flow channel which are communicated with each other, the water inlet cavity is communicated with the water passing cavity through the first throttling flow channel, and the water outlet cavity is communicated with the water passing cavity through the second throttling flow channel. According to the waste water valve, noise generated when the waste water valve works can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification, in particular to a wastewater valve and water purification equipment. Background Art

[0002] At present, there are various water purification equipment on the market, which are installed on the water supply pipes to filter and purify tap water for people to drink. Reverse osmosis water purification equipment is becoming more and more popular because the pure water it produces is more thoroughly filtered, more hygienic and safer. In the relevant technical field, a wastewater solenoid valve is installed on the wastewater pipeline. However, when the wastewater solenoid valve is throttled, the wastewater flow rate is too large, resulting in a large pressure loss, and then part of the wastewater is gasified, generating excessive cavitation noise, which reduces the user experience. Utility Model Content

[0003] The main purpose of the utility model is to provide a wastewater valve, aiming to reduce the noise generated when the wastewater valve is working.

[0004] To achieve the above-mentioned purpose, the utility model proposes a wastewater valve, which includes a valve body and a sealing assembly; the valve body has an inlet channel and an outlet channel; the sealing assembly is arranged in the valve body, and defines an inlet chamber, an outlet chamber and a water passage chamber in the valve body, the inlet chamber is connected to the inlet channel, and the outlet chamber is connected to the outlet channel; the sealing assembly is provided with a first throttling channel and a second throttling channel connected to each other, the inlet chamber is connected to the water passage chamber through the first throttling channel, and the outlet chamber is connected to the water passage chamber through the second throttling channel.

[0005] In one embodiment, the sealing assembly includes a sealing diaphragm and a throttle seat, the throttle seat is connected to the sealing diaphragm, the first throttling channel is arranged on the sealing diaphragm, and the second throttling channel is arranged on the throttle seat; or, the first throttling channel is arranged on the sealing diaphragm and the throttle seat, and the second throttling channel is arranged on the throttle seat.

[0006] In one embodiment, the first throttling flow channel is formed by a first throttling hole penetrating the sealing diaphragm.

[0007] In one embodiment, the throttle seat includes a main body and an extension portion surrounding the outer periphery of the main body, the main body is connected to the sealing diaphragm; a first throttling hole is opened on the sealing diaphragm, the extension portion covers the first throttling hole and a second throttling hole connected to the first throttling hole is opened on the extension portion, the first throttling hole and the second throttling hole form the first throttling flow channel.

[0008] In one embodiment, in the axial direction of the first throttle hole, the first throttle hole and the second throttle hole are staggered.

[0009] In one embodiment, a water groove is provided on a side of the extension portion facing the sealing diaphragm, a water flow channel is formed between the water groove and the sealing diaphragm, and the water flow channel is connected to the first throttling hole and the second throttling hole.

[0010] In one embodiment, the throttle seat includes a main body portion, the second throttling flow channel runs through the main body portion, the main body portion includes a guide portion and an installation portion, the guide portion and the installation portion are respectively located on opposite sides of the sealing diaphragm; a card slot is formed between the guide portion and the installation portion, and a bayonet that is engaged with the card slot is provided on the sealing diaphragm.

[0011] In one embodiment, the wastewater valve further comprises a valve core sleeve and a valve core assembly disposed in the valve body, and the valve core assembly is movably disposed in the valve core sleeve to open or close the second throttling flow channel.

[0012] In one embodiment, the valve core sleeve includes a sleeve portion and a connecting portion connected to the sleeve opening of the sleeve portion, the connecting portion is used to be connected to the sealing diaphragm, and the valve core assembly is movably disposed on the sleeve portion.

[0013] In one embodiment, the guide portion at least partially extends into the sleeve portion, and one end of the guide portion away from the mounting portion is tapered.

[0014] In one embodiment, a limiting rib is further provided on the outer periphery of the guide portion, and the limiting rib is used to abut against the wall surface of the connecting portion.

[0015] In one embodiment, the diameter of the first throttle hole is 0.5 mm-2.5 mm, and / or the diameter of the second throttle hole is 0.5 mm-2.5 mm.

[0016] In one embodiment, the diameter of the second throttling flow channel is 0.5 mm-2.5 mm, and / or the length of the second throttling flow channel is 5 mm-25 mm.

[0017] The utility model also proposes a water purification device, which includes the wastewater valve. The wastewater valve includes a valve body and a sealing component; the valve body has a water inlet channel and a water outlet channel; the sealing component is arranged in the valve body, and defines a water inlet chamber, a water outlet chamber and a water passage chamber in the valve body, the water inlet chamber is connected to the water inlet channel, and the water outlet chamber is connected to the water outlet channel; the sealing component is provided with a first throttling channel and a second throttling channel connected to each other, the water inlet chamber is connected to the water passage chamber through the first throttling channel, and the water outlet chamber is connected to the water passage chamber through the second throttling channel.

[0018] The technical solution of the utility model is to set a sealing component in the valve body, and the sealing component is provided with a first throttling flow channel and a second throttling flow channel connected to each other, the first throttling flow channel connects the water inlet chamber and the water passage chamber, and the second throttling flow channel connects the water passage chamber and the water outlet chamber, so that the wastewater flowing in through the water inlet flow channel can flow through the water inlet chamber, the first throttling flow channel, the water passage chamber, the second throttling flow channel, the water outlet chamber in sequence, and be discharged from the water outlet flow channel. The secondary throttling of the wastewater is achieved through the first throttling flow channel and the second throttling flow channel, which can alleviate the pressure loss of the wastewater, thereby reducing the proportion of wastewater gasification, reducing the noise generated when the wastewater valve is working, and achieving a noise reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 This is a schematic structural diagram of an embodiment of a wastewater valve of the utility model;

[0021] Figure 2 for Figure 1 A cross-sectional view of the wastewater valve;

[0022] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0023] Figure 4 for Figure 2 A schematic diagram of the structure of the middle sealing component;

[0024] Figure 5 for Figure 4 Exploded view of the seal assembly;

[0025] Figure 6 for Figure 5 Cross-sectional view of the seal assembly.

[0026] Description of Figure Numbers:

[0027]

[0028]

[0029] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0033] Solenoid valves are industrial equipment controlled by electromagnetics. They are basic components for controlling fluids. They are actuators and are not limited to hydraulic and pneumatic. They are used in industrial control systems to adjust the direction, flow, speed and other parameters of the medium. Solenoid valves can be used with different circuits to achieve the desired control, and the accuracy and flexibility of the control can be guaranteed. Solenoid valves are completed by electromagnetic force acting on the iron core sealed in the magnetic isolation sleeve of the electric control valve. There is no dynamic seal, so it is easy to block the leakage. The solenoid valve itself has a simple structure and low price. It is easier to install and maintain than other types of actuators such as control valves. More significantly, the self-control system it forms is much simpler and the price is much lower. Since the solenoid valve is controlled by a switch signal, it is very convenient to connect with the control circuit. In today's era of popularization of computers and sharp price drops, the advantages of solenoid valves are even more obvious. The response time of the solenoid valve can be as short as a few milliseconds, and even the pilot solenoid valve can be controlled within tens of milliseconds. Because it is self-contained, it is more sensitive than other automatic control valves. A properly designed solenoid valve coil has very low power consumption and is an energy-saving product; it can also automatically maintain the valve position by simply triggering the action, and usually does not consume any power. The solenoid valve has a small size, which saves space and is light and beautiful.

[0034] In water purification equipment, a reverse osmosis filter element is often provided to filter ions in water, such as calcium ions and magnesium ions, so as to reduce the hardness of water; and due to the working principle of the reverse osmosis filter element, the reverse osmosis filter element will produce wastewater during filtration; and in order to flush the water inlet end of the reverse osmosis filter element after the reverse osmosis filter element stops working, so as to flush out the unfiltered water remaining at the water inlet end of the reverse osmosis filter element, thereby reducing the possibility of calcium and magnesium ions passing through the reverse osmosis filter membrane and flowing out from the water outlet end of the reverse osmosis filter element, a wastewater solenoid valve with both throttling function and flushing function has been adopted; this wastewater solenoid valve can remain in a normally closed state during the working process of the reverse osmosis filter element to continuously discharge wastewater, and open when the reverse osmosis filter element stops working to flush the water inlet end (i.e., the front end) of the reverse osmosis filter element.

[0035] In a general wastewater solenoid valve, when it is kept in a normally closed state, the water inlet end of the wastewater solenoid valve is still taking in water, so the water inlet end of the wastewater solenoid valve will have a higher water pressure, thereby naturally forming a high-pressure area in the wastewater solenoid valve; and in order to discharge the wastewater filtered by the reverse osmosis filter element, a throttling tube or throttling hole will be provided in the wastewater solenoid valve; the throttling tube and throttling hole are used to discharge the wastewater entering the high-pressure area; and in order to avoid excessive water flow, the throttling tube and throttling hole are generally very small to control Water flow; but since the throttling tube or throttling hole is generally designed to be small and the throttling tube and throttling hole are both used to discharge wastewater, when the wastewater solenoid valve is opened, the water pressure in the valve body will drop sharply, so that the pressure difference between the water inlet and outlet of the wastewater solenoid valve will tend to zero, and then the remaining wastewater in the throttling tube or throttling hole will be retained in the throttling tube or throttling hole. Over time, the calcium and magnesium ions in the wastewater will precipitate and crystallize, making the throttling tube or throttling hole ineffective, thereby reducing the service life of the water purification equipment.

[0036] To this end, the utility model proposes a waste water valve, which can be applied to water purification equipment and other related equipment and related flow path systems. The water purification equipment can be a water purifier, a water purifier or a direct drinking machine.

[0037] See also Figures 1 to 3 In one embodiment of the utility model, the wastewater valve 10 includes a valve body 100 and a sealing assembly 200; the valve body 100 has an inlet channel 110 and an outlet channel 120; the sealing assembly 200 is arranged in the valve body 100, and defines an inlet chamber 130, an outlet chamber 140 and a water passage chamber 150 in the valve body 100, the inlet chamber 130 is connected to the inlet channel 110, and the outlet chamber 140 is connected to the outlet channel 120; the sealing assembly 200 is provided with a first throttling channel 210 and a second throttling channel 220 connected to each other, the inlet chamber 130 is connected to the water passage chamber 150 through the first throttling channel 210, and the outlet chamber 140 is connected to the water passage chamber 150 through the second throttling channel 220.

[0038] Specifically, the valve body 100 is provided with an inlet pipe and an outlet pipe, and the inlet pipe and the outlet pipe are used to connect to an external waterway, and the inlet pipe and the outlet pipe respectively form an inlet flow channel 110 and an outlet flow channel 120. Wastewater flows into the valve body 100 from the inlet flow channel 110 and flows out from the outlet flow channel 120. The material of the valve body 100 can be hard materials such as ABS, HIPS, PP, PC, POM, or metal or alloy materials. In this embodiment, the valve body 100 is made of POM material, which has high strength and precision, light weight, and low cost. At the same time, as the material of the valve body 100, it is not easy to rust.

[0039] See also Figure 2 or Figure 3The sealing assembly 200 is arranged in the valve body 100, and defines a water inlet chamber 130, a water outlet chamber 140 and a water passage chamber 150 in the valve body 100, wherein a water sealing rib 160 is arranged in the valve body 100, the interior of the water sealing rib 160 forms the water outlet chamber 140, and the periphery of the water sealing rib 160 forms the water inlet chamber 130; the sealing assembly 200 is used to seal the end surface of the water sealing rib 160. The water inlet chamber 130 and the water outlet chamber 140 are located on one side of the sealing assembly 200, and the water passage chamber 150 is located on the other side of the sealing assembly 200, and the water inlet chamber 130 and the water outlet chamber 140 are connected through the water passage chamber 150.

[0040] Furthermore, the sealing assembly 200 is provided with a first throttling channel 210 and a second throttling channel 220 that are connected to each other. The first throttling channel 210 is connected to the water inlet chamber 130 and the water passage chamber 150, and the second throttling channel 220 is connected to the water passage chamber 150 and the water outlet chamber 140, so that the wastewater flowing in through the water inlet channel 110 can flow through the water inlet chamber 130, the first throttling channel 210, the water passage chamber 150, the second throttling channel 220, and the water outlet chamber 140 in sequence, and be discharged from the water outlet channel 120. Among them, the provision of the first throttling channel 210 and the second throttling channel 220 prolongs the flow path of the wastewater in the valve chamber, further improves the throttling effect, and at the same time, the secondary throttling of the wastewater is achieved through the first throttling channel 210 and the second throttling channel 220, which can alleviate the pressure loss of the wastewater, thereby reducing the proportion of wastewater gasification, reducing the noise generated when the wastewater valve 10 is working, and achieving a noise reduction effect.

[0041] See also Figures 4 to 6 In one embodiment, the sealing assembly 200 includes a sealing diaphragm 230 and a throttle seat 240, the throttle seat 240 is connected to the sealing diaphragm 230, the first throttle channel 210 is arranged on the sealing diaphragm 230, and the second throttle channel 220 is arranged on the throttle seat 240; or, the first throttle channel 210 is arranged on the sealing diaphragm 230 and the throttle seat 240, and the second throttle channel 220 is arranged on the throttle seat 240.

[0042] Specifically, the sealing assembly 200 includes a sealing diaphragm 230 that seals the end surface of the water sealing rib 160, and a throttling seat 240 connected to the sealing diaphragm 230, wherein the second throttling channel 220 is arranged on the throttling seat 240 to connect the water chamber 150 and the water outlet chamber 140. The first throttling channel 210 can be only arranged on the sealing diaphragm 230 to connect the water inlet chamber 130 and the water passage chamber 150, or can be arranged on the sealing diaphragm 230 and the throttling seat 240 at the same time to connect the water inlet chamber 130 and the water passage chamber 150, and there is no specific limitation on this. In this embodiment, in order to further improve the throttling effect of the first throttling channel 210 on wastewater, the first throttling channel 210 is selected to be arranged on the sealing diaphragm 230 and the throttling seat 240 at the same time.

[0043] It should be noted that when the first throttling channel 210 is only provided on the sealing diaphragm 230, the first throttling channel 210 is formed by the first throttling hole 231 penetrating the sealing diaphragm 230. When the first throttling channel 210 is provided on both the sealing diaphragm 230 and the throttling seat 240, the throttling seat 240 includes a main body 241 and an extension portion 242 surrounding the outer periphery of the main body 241, and the main body 241 is connected to the sealing diaphragm 230; the sealing diaphragm 230 is provided with a first throttling hole 231, the extension portion 242 covers the first throttling hole 231, and the extension portion 242 is provided with a second throttling hole 242a connected to the first throttling hole 231, and the first throttling hole 231 and the second throttling hole 242a form the first throttling channel 210. That is, at this time, the first throttling channel 210 is formed by the first throttling hole 231 and the second throttling hole 242a.

[0044] It is worth mentioning that the first throttle hole 231 and the second throttle hole 242a are staggered in the axial direction of the first throttle hole 231. In this way, the first throttle hole 231 and the second throttle hole 242a can be staggered to form a bent first throttle channel 210, thereby throttling the wastewater and improving the throttling effect.

[0045] See also Figure 5 Further, the number of the first throttle holes 231 is multiple, and the multiple first throttle holes 231 are arranged at intervals along the circumference of the sealing diaphragm 230, and the number of the second throttle holes 242a is consistent with the number of the first throttle holes 231. Preferably, the number of the first throttle holes 231 or the second throttle holes 242a is set to 4-8, and exemplarily 4, 5, 6, 7 or 8.

[0046] See also Figure 6 In one embodiment, a water groove 242b is provided on the side of the extension portion 242 facing the sealing diaphragm 230, a water flow channel is formed between the water groove 242b and the sealing diaphragm 230, and the water flow channel is connected to the first throttling hole 231 and the second throttling hole 242a. Specifically, a water groove 242b can also be provided on the side of the extension portion 242 facing the sealing diaphragm 230, and a water flow channel is formed between the water groove 242b and the sealing diaphragm 230, so as to extend the flow channel length of the first throttling flow channel 210, further improve the throttling effect of the first throttling flow channel 210, and also play a role in noise reduction.

[0047] See also Figures 4 to 6In one embodiment, the throttle seat 240 includes a main body 241, and the second throttle flow channel 220 runs through the main body 241. The main body 241 includes a guide portion 241a and a mounting portion 241b, and the guide portion 241a and the mounting portion 241b are respectively located on opposite sides of the sealing diaphragm 230; a card slot 241c is formed between the guide portion 241a and the mounting portion 241b, and a bayonet 232 that is engaged with the card slot 241c is provided on the sealing diaphragm 230. Specifically, the second throttle flow channel 220 is formed by a long hole running through the main body 241, and its cross-sectional shape can be circular, elliptical, square or other special shapes, which is not specifically limited. The main body 241 is connected to the sealing diaphragm 230, and the main body 241 includes a guide portion 241a and a mounting portion 241b respectively located on opposite sides of the sealing diaphragm 230, wherein the mounting portion 241b is a side of the main body 241 close to the water outlet chamber 140. A slot 241c is formed between the guide portion 241a and the mounting portion 241b, and a bayonet 232 is formed on the sealing diaphragm 230. The two are adapted to be snap-fitted so that the throttle seat 240 and the sealing diaphragm 230 are connected together.

[0048] See also Figure 2 In one embodiment, the wastewater valve 10 further includes a valve core sleeve 300 and a valve core assembly 400 disposed in the valve body 100, and the valve core assembly 400 is movably disposed in the valve core sleeve 300 to open or close the second throttling flow channel 220. Specifically, the valve core assembly 400 has an open position and a closed position, and can move between the open position and the closed position to open or close the second throttling flow channel 220.

[0049] Among them, when the valve core assembly 400 is in the open position, the second throttling channel 220 is opened, and the wastewater flowing into the water inlet chamber 130 will flow through the first throttling channel 210, the water flow chamber 150, the second throttling channel 220, the water outlet chamber 140 in sequence and finally be discharged from the water outlet channel 120; when the valve core assembly 400 is in the closed position, the second throttling channel 220 is closed, and the wastewater flowing into the water inlet chamber 130 will flow through the first throttling channel 210, the water flow chamber 150 in sequence, and will not flow into the second throttling channel 220 and be discharged through the water outlet channel 120.

[0050] Furthermore, the wastewater valve 10 further includes a coil assembly 500, which is mounted on the valve body 100 and is located at the periphery of the valve core assembly 400. When the inductor coil of the coil assembly 500 is energized, it has a driving force to drive the valve core assembly 400 to move between an open position and a closed position.

[0051] Please continue reading Figure 2Preferably, the wastewater valve 10 further includes a return spring 600, which is disposed in the valve core sleeve 300 and in the inductor coil, and the return spring 600 abuts against one end of the valve core assembly 400. When the inductor coil is energized, an electromagnetic force is generated to drive the valve core assembly 400 to move. When the inductor coil is energized, the valve core assembly 400 squeezes the return spring 600 under the action of the electromagnetic force generated by the inductor coil, so that the valve core assembly 400 opens the second throttling flow channel 220, so that the wastewater valve 10 throttles the wastewater.

[0052] When the inductor is powered off, the valve core assembly 400 moves to a position close to the throttle seat 240 under the elastic force of the return spring 600, so that the valve core assembly 400 presses against the throttle seat 240, thereby closing the second throttle flow channel 220, and the wastewater valve 10 does not work at this time.

[0053] It can be seen that the wastewater valve 10 of the present invention is in a state of throttling wastewater in normal use when it is powered on.

[0054] See also Figure 3 In one embodiment, the valve core sleeve 300 includes a sleeve portion 310 and a connecting portion 320 connected to the sleeve portion 310, the connecting portion 320 is used to connect with the sealing diaphragm 230, and the valve core assembly 400 is movably disposed on the sleeve portion 310. By disposing the sleeve portion 310, the moving distance and direction of the valve core assembly 400 can be limited.

[0055] See also Figure 2 and Figure 3 It should be noted that the guide portion 241a at least partially extends into the sleeve portion 310, and the end of the guide portion 241a away from the mounting portion 241b is gradually reduced. In this way, on the one hand, the guide portion 241a can be at least partially extended into the sleeve portion 310 to limit its installation position, and on the other hand, the end away from the mounting portion 241b is gradually reduced, that is, the end surface of the guide portion 241a has a small area, and when the valve core assembly 400 abuts against its end surface, the sealing effect on the second flow channel is good, preventing water leakage, and avoiding the waste water in the water passage chamber 150 from flowing into the second throttling flow channel 220 from the gap between the two when the contact area between the two is too large.

[0056] See also Figures 4 to 6 In one embodiment, the outer periphery of the guide portion 241a is further provided with a limiting rib 241d, and the limiting rib 241d is used to abut against the wall surface of the connecting portion 320. Specifically, the limiting rib 241d can limit the portion of the guide portion 241a extending into the sleeve portion 310 to prevent the portion of the guide portion 241a extending into the sleeve portion 310 from being too long or too short, and also plays a role in positioning the position of the guide portion 241a.

[0057] In one embodiment, the first throttle hole 231 has a diameter of 0.5 mm to 2.5 mm, and / or the second throttle hole 242a has a diameter of 0.5 mm to 2.5 mm. Specifically, the diameters of the first throttle hole 231 and the second throttle hole 242a are limited to 0.5 mm to 2.5 mm, which has a better throttling effect on the wastewater passing therethrough. Among them, the aperture of the first throttling hole 231 can be exemplarily 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm; the aperture of the second throttling hole 242a can be exemplarily 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm. It should be noted that the aperture of the first throttling hole 231 and the aperture of the second throttling hole 242a may be the same or different, and there is no specific limitation on this.

[0058] In one embodiment, the diameter of the second throttling flow channel 220 is 0.5 mm-2.5 mm, and / or the length of the second throttling flow channel 220 is 5 mm-25 mm. Specifically, the diameter of the second throttling flow channel 220 is limited to 0.5 mm-2.5 mm, and the length of the second throttling flow channel 220 is limited to 5 mm-25 mm, which has a better throttling effect on the wastewater passing therethrough. The diameter of the second throttling channel 220 can be 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm; the length of the second throttling channel 220 can be 5mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 25mm. Setting the second throttling channel 220 as a long channel can further disperse the pressure drop, reduce the severity of cavitation of the fluid, and thus reduce the throttling noise.

[0059] The technical solution of the utility model is to arrange a sealing assembly 200 in the valve body 100, and the sealing assembly 200 is provided with a first throttling flow channel 210 and a second throttling flow channel 220 that are connected, the first throttling flow channel 210 connects the water inlet chamber 130 and the water passage chamber 150, and the second throttling flow channel 220 connects the water passage chamber 150 and the water outlet chamber 140, so that the wastewater flowing in through the water inlet flow channel 110 can flow through the water inlet chamber 130, the first throttling flow channel 210, the water passage chamber 150, the second throttling flow channel 220, and the water outlet chamber 140 in sequence, and be discharged from the water outlet flow channel 120. The secondary throttling of the wastewater is achieved through the first throttling flow channel 210 and the second throttling flow channel 220, which can alleviate the pressure loss of the wastewater, thereby reducing the proportion of wastewater gasification, reducing the noise generated when the wastewater valve 10 is working, and achieving a noise reduction effect.

[0060] The utility model also proposes a water purification device, which includes the above-mentioned wastewater valve. The specific structure of the wastewater valve refers to the above-mentioned embodiment. Since the water purification device adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here. Among them, the water purification device can be a water purifier, a water purifier or a direct drinking machine.

[0061] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A wastewater valve, characterized in that: The wastewater valve comprises: A valve body having a water inlet channel and a water outlet channel; and A sealing assembly is arranged in the valve body, and defines a water inlet chamber, a water outlet chamber and a water passage chamber in the valve body, the water inlet chamber is connected to the water inlet channel, and the water outlet chamber is connected to the water outlet channel; the sealing assembly is provided with a first throttling channel and a second throttling channel connected to each other, the water inlet chamber is connected to the water passage chamber through the first throttling channel, and the water outlet chamber is connected to the water passage chamber through the second throttling channel.

2. The wastewater valve according to claim 1, characterized in that: The sealing assembly includes a sealing diaphragm and a throttle seat, the throttle seat is connected to the sealing diaphragm, the first throttle channel is arranged on the sealing diaphragm, and the second throttle channel is arranged on the throttle seat; or, the first throttle channel is arranged on the sealing diaphragm and the throttle seat, and the second throttle channel is arranged on the throttle seat.

3. The wastewater valve according to claim 2, characterized in that: The first throttling flow channel is formed by a first throttling hole penetrating the sealing diaphragm.

4. The wastewater valve according to claim 2, characterized in that: The throttling seat includes a main body and an extension portion surrounding the outer periphery of the main body, the main body is connected to the sealing diaphragm; a first throttling hole is opened on the sealing diaphragm, the extension portion covers the first throttling hole and a second throttling hole connected to the first throttling hole is opened on the extension portion, the first throttling hole and the second throttling hole form the first throttling flow channel.

5. The wastewater valve according to claim 4, characterized in that: In the axial direction of the first throttle hole, the first throttle hole and the second throttle hole are staggered.

6. The wastewater valve according to claim 4, characterized in that: A water groove is disposed on one side of the extension portion facing the sealing diaphragm, a water flow channel is formed between the water groove and the sealing diaphragm, and the water flow channel is connected to the first throttling hole and the second throttling hole.

7. The wastewater valve according to claim 2, characterized in that: The throttle seat includes a main body portion, the second throttling flow channel runs through the main body portion, the main body portion includes a guide portion and a mounting portion, the guide portion and the mounting portion are respectively located on opposite sides of the sealing diaphragm; a card slot is formed between the guide portion and the mounting portion, and a bayonet that is engaged with the card slot is provided on the sealing diaphragm.

8. The wastewater valve according to claim 7, characterized in that: The wastewater valve also includes a valve core sleeve and a valve core assembly arranged in the valve body. The valve core assembly is movably arranged in the valve core sleeve to open or close the second throttling flow channel.

9. The wastewater valve according to claim 8, characterized in that: The valve core sleeve comprises a sleeve portion and a connecting portion connected to the sleeve opening, the connecting portion is used to be connected to the sealing diaphragm, and the valve core assembly is movably arranged on the sleeve portion.

10. The wastewater valve according to claim 9, characterized in that: The guide portion at least partially extends into the sleeve portion, and one end of the guide portion away from the mounting portion is tapered.

11. The wastewater valve according to claim 10, characterized in that: The outer periphery of the guide portion is further provided with limiting ribs, and the limiting ribs are used to abut against the wall surface of the connecting portion.

12. The wastewater valve according to claim 4, characterized in that: The aperture of the first throttle hole is 0.5 mm-2.5 mm, and / or the aperture of the second throttle hole is 0.5 mm-2.5 mm.

13. The wastewater valve according to any one of claims 1 to 11, characterized in that: The diameter of the second throttling flow channel is 0.5 mm-2.5 mm, and / or the length of the second throttling flow channel is 5 mm-25 mm.

14. A water purification device, characterized in that: Comprising a waste water valve as claimed in any one of claims 1 to 13.

Images