Operating valve for zero aging water and frequent starting prevention of water purifier

Abstract

The utility model relates to the technical field of water purifiers, in particular to an operating valve for zero water aging and frequent start prevention of a water purifier, which comprises an operating valve shell and a one-way valve, a raw water inlet, a raw water outlet, a pure water inlet, a pure water outlet and a flow regulation water tank are arranged on the operating valve shell, and the one-way valve is rotatably connected to an inner cavity of the operating valve shell. A center hole, a pure water through hole and a backflow hole are formed in the one-way valve, the raw water inlet is communicated with the pure water through hole through the flow adjusting water tank, the pure water through hole is communicated with the center hole, the center hole is communicated with the pure water outlet, the pure water inlet is communicated with the backflow hole, and the backflow hole is communicated with the raw water outlet through the flow adjusting water tank. According to the water purifier, the top cover, the bottom cover and the one-way valve which are specially designed are matched with one another, so that the water purifier is internally or externally arranged under the condition that the cost of the water storage barrel is not increased, the water purifier is small in size, does not occupy space, is low in manufacturing cost, does not add other operating valves, does not need to change specific working procedures, and can also reduce original valves in the water purifier.

Description

Technical Field

[0001] The utility model relates to the technical field of water purifiers, and relates to an actuating valve for preventing frequent start-up of zero stale water in a water purifier. Background Technique

[0002] Some existing water purifiers need to install a storage bucket due to the need for pure water to flow back, and use the pure water in the storage bucket to backwash the (RO membrane) to achieve the effect of stable water quality of the outlet water.

[0003] This type of method is divided into an internal bucket and an external bucket. The volume and water storage capacity of the internal bucket determine the use effect, occupy the space of the filter element, increase the volume of the water purifier, and also increase the space of the valve parts and the control board. The external bucket occupies a large space and increases the production cost;

[0004] This type of method needs to add a water quality detection device at the water outlet end to control the water outlet. The water can be supplied normally only after the water quality of the water outlet reaches the preset value, resulting in delayed water outlet, poor water use experience, high cost, and delayed water outlet when used with a water dispenser, causing dry burning;

[0005] In addition, in order to keep the water quality constant, the control program of some brands will let the water purifier flush at regular intervals, which will cause a large amount of waste water, and repeated start-up will have a great impact on the overall service life of the machine. Content of the Utility Model

[0006] Aiming at the deficiencies in the prior art, the utility model provides an actuating valve for preventing frequent start-up of zero stale water in a water purifier, which has a simple structure, a small volume, flexible adjustment, and a low manufacturing cost, and solves the problem that the water purifier frequently starts due to the flow difference when used with a pipeline water dispenser.

[0007] The utility model is realized by the following technical scheme:

[0008] The utility model provides an actuating valve for preventing frequent start-up of zero stale water in a water purifier, which includes an actuating valve housing and a check valve arranged in the actuating valve housing. An inlet and an outlet communicating with its inner cavity are arranged outside the actuating valve housing. The actuating valve housing is provided with a raw water inlet, a raw water outlet, a pure water inlet, a pure water outlet and a flow adjustment water tank. The check valve is rotatably connected to the inner cavity of the actuating valve housing. The check valve is provided with a central hole, a pure water through hole and a return hole. The raw water inlet is connected to the pure water through hole through the flow adjustment water tank. The pure water through hole is connected to the central hole. The central hole is connected to the pure water outlet. The pure water inlet is connected to the return hole. The return hole is connected to the raw water outlet through the flow adjustment water tank.

[0009] In order to facilitate the overall disassembly and assembly of the check valve, the actuating valve housing includes a detachable top cover and a bottom cover, and the top cover and the bottom cover are detachably connected by a plurality of screw rods around.

[0010] In one embodiment of the present utility model, the raw water outlet and the raw water inlet are symmetrically arranged on the top cover, and the raw water outlet and the raw water inlet are on the same axis; the pure water outlet and the pure water inlet are symmetrically arranged on the bottom cover, and the pure water outlet and the pure water inlet are on the same axis and parallel to the raw water outlet and the raw water inlet.

[0011] In another embodiment of the present utility model, the pure water outlet and the pure water inlet are symmetrically arranged on the bottom cover, and the pure water outlet and the pure water inlet are parallel to each other and perpendicular to the raw water outlet and the raw water inlet.

[0012] In order to facilitate flow regulation, the flow regulation water tank is opened on the top cover. The flow regulation water tank is arc-shaped, and its two ends are respectively communicated with the raw water outlet and the raw water inlet. The bottom end of the flow regulation water tank penetrates the bottom end surface of the top cover.

[0013] In order to facilitate the switching of the return holes, the return holes penetrate the top end surface and the bottom end surface of the one-way valve. The top end of the return hole is communicated with the flow regulation water tank, and the bottom end of the return hole is communicated with the pure water inlet. A rubber gasket capable of covering the flow regulation water tank is fixed on one side of the return hole.

[0014] In order to facilitate the connection between the central hole and the pure water outlet, the bottom end of the central hole penetrates the bottom end surface of the one-way valve and is communicated with the pure water outlet.

[0015] In order to facilitate driving the one-way valve to rotate, the top end surface of the one-way valve has a rotation driving block, and a cross groove is arranged on the rotation driving block.

[0016] In order to ensure the sealing performance, sealing rings are respectively arranged at the joints between the top cover, the bottom cover and the one-way valve.

[0017] The beneficial effects of the present utility model are as follows:

[0018] (1) The function valve for preventing frequent start-up of zero standing water in the water purifier is cooperated with the specially designed top cover, bottom cover and one-way valve. Without increasing the cost of the storage bucket, whether it is built-in or external, it has a small volume and does not occupy space;

[0019] (2) The water outlet has no delay, reduces the faults of the water dispenser, and reduces the cost;

[0020] (3) There is no need for timed flushing. Using the program of the water purifier itself, the backflow flushing is carried out 15 - 30 minutes after the water production stops, which ensures the stability of the water quality for the next use. Moreover, on the premise of ensuring the water quality stability, the number of control valves of the water purifier is reduced;

[0021] (4) It does not add other function valves, does not need to change the specific working program, and can also reduce the original valve parts inside the water purifier. Description of the Drawings

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the function valve for preventing frequent start-up of zero stale water in a water purifier according to the present utility model;

[0023] Figure 2 It is an exploded view of the function valve for preventing frequent start-up of zero stale water in a water purifier according to the present utility model;

[0024] Figure 3 It is a cross-sectional view of the function valve for preventing frequent start-up of zero stale water in a water purifier according to the present utility model;

[0025] Figure 4 It is a structural schematic diagram of the top cover of the function valve for preventing frequent start-up of zero stale water in a water purifier according to the present utility model;

[0026] Figure 5 It is a structural schematic diagram of the bottom cover of the function valve for preventing frequent start-up of zero stale water in a water purifier according to the present utility model;

[0027] Figure 6 It is a structural schematic diagram of the check valve of the function valve for preventing frequent start-up of zero stale water in a water purifier according to the present utility model;

[0028] Figure 7 It is a three-dimensional structural schematic diagram of another embodiment of the function valve for preventing frequent start-up of zero stale water in a water purifier according to the present utility model. Detailed Embodiment

[0029] The following elaborates on the preferred embodiments of the present utility model in conjunction with the drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined.

[0030] Embodiment 1:

[0031] As Figure 1 shown, a function valve for preventing frequent start-up of zero stale water in a water purifier includes a function valve housing and a check valve disposed in the function valve housing. The function valve housing includes a top cover 9 and a bottom cover 10 that are detachably connected. The top cover 9 and the bottom cover 10 are detachably connected by four screw rods 11 around their peripheries. An inlet and an outlet communicating with their inner cavities are provided outside the top cover 9 and the bottom cover 10. Among them, a raw water outlet 1 and a raw water inlet 2 are symmetrically disposed at both ends of the top cover 9, and the raw water outlet 1 and the raw water inlet 2 are on the same axis and extend in the horizontal direction. A pure water outlet 6 and a pure water inlet 7 are symmetrically disposed at both ends of the bottom cover 10, and the pure water outlet 6 and the pure water inlet 7 are on the same axis and are parallel to the raw water outlet 1 and the raw water inlet 2.

[0032] Specifically, in combination with Figures 2 - 6As shown, the one-way valve 8 is rotatably connected to the inner cavity of the action valve housing. A central hole 5, a pure water through-hole 4, and a return hole 3 are provided on the one-way valve 8. An arc-shaped flow rate adjustment water tank 12 is provided on the bottom end surface of the top cover 9. The flow rate adjustment water tank 12 is arc-shaped, and its two ends are respectively communicated with the raw water outlet 1 and the raw water inlet 2. The bottom end of the flow rate adjustment water tank 12 penetrates through the bottom end surface of the top cover. The raw water inlet 2 is communicated with the pure water through-hole 4 through the flow rate adjustment water tank 12. The pure water through-hole 4 is communicated with the central hole 5 through a through-hole 22. The central hole 5 is communicated with the pure water outlet 6. The pure water inlet 7 is communicated with the return hole 3. The return hole 3 is communicated with the raw water outlet 1 through the flow rate adjustment water tank 12. The return hole 3 penetrates through the top end surface and the bottom end surface of the one-way valve 8. The top end of the return hole 3 is communicated with the flow rate adjustment water tank 12, and the bottom end of the return hole 3 is communicated with the pure water inlet 7. An arc-shaped rubber gasket 13 that can cover the flow rate adjustment water tank 12 is fixed on one side of the return hole 3. The bottom end of the central hole 5 penetrates through the bottom end surface of the one-way valve 8 and is communicated with the pure water outlet 6. One end of the pure water outlet 6 has a sleeve 20 that can be inserted into the central hole 5. In addition, a rotary drive block 14 is provided on the top end surface of the one-way valve 8, and a cross-shaped groove 15 is provided on the rotary drive block 14. A through-hole 21 through which the rotary drive block 14 can pass is provided at the center of the top cover 9.

[0033] To ensure the sealing performance, sealing rings are respectively provided at the joints between the top cover 9, the bottom cover 10, and the one-way valve 8. Specifically, sealing rings 16 are respectively provided between the outer walls of the top and bottom ends of the rotary drive block 14 and the inner wall of the top cover 9. A sealing ring 17 is provided at the joint surface between the top cover 9 and the bottom cover 10. Sealing rings 18 are respectively provided between the outer walls of the top and bottom ends of the one-way valve 8 and the inner wall of the bottom cover 10. A sealing ring 19 is provided at the joint between the pure water outlet 6 and the central hole 5 of the one-way valve 8.

[0034] The working principle of the action valve for preventing frequent startup of zero standing water in a water purifier is as follows:

[0035] Zero standing water working principle: When the water purifier is working normally to draw water, the return hole 3 is in a closed state due to the back pressure of the raw water. The purification water enters the pure water through-hole 4 through the pure water inlet 7, and the built-in one-way valve of the pure water through-hole 4 opens. It enters the central hole 5 through the through-hole 22 and then reaches the pure water outlet 6. At this time, it is in a normal water supply state. When the water intake stops, the machine stops under the action of the high-pressure switch. At this time, the water purifier will enter a flushing state for 15 - 30 seconds. At this time, due to the back pressure of the pure water through-hole 4, it is in a closed state. The purification water then flows back into the raw water through the return hole 3. After 15 - 30 seconds of backflow dilution, the water ion concentration in the membrane housing is reduced (the reduction degree is proportional to the backflow time), so as to achieve the purpose of stable water quality and zero standing water.

[0036] Working principle of frequent startup: The water purifier frequently starts because the water production volume is much greater than the water demand of the household pipeline drinking fountain when the water purifier works with the household pipeline drinking fountain. Since the water purifier is controlled by a high-pressure switch to start and stop, the pressure difference fluctuates frequently when the drinking fountain is in use, so the water purifier will repeatedly make and stop water. The solution is that in the design of this control valve, considering the pressure difference and flow difference formed by water purifiers with different water production volumes and different drinking fountains, the arc-shaped flow regulating water tank 12 can communicate with the return hole 3, and the arc-shaped rubber gasket 13 is used to adjust different coverage areas to form a certain amount of purified water return to adapt to different pressure differences and flow differences, so that the water purifier can work properly when the drinking fountain is in use.

[0037] Embodiment 2:

[0038] As Figure 7 shown, the difference from Embodiment 1 is that the pure water outlet 6' and the pure water inlet 7' are parallel to each other and perpendicular to the raw water outlet and the raw water inlet. This structure can be applied to different scenarios. It should be noted that the angles of the pure water outlet 6' and the pure water inlet 7' can also be adjusted according to actual needs.

[0039] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "between", "horizontal", "inner", "outer", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 should not be construed as a limitation to the present invention.

[0040] Based on the above inspiration from the ideal embodiment of the present invention, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A function valve for preventing frequent startup of zero stale water in a water purifier, comprising a function valve housing and a check valve (8) arranged in the function valve housing. An inlet and an outlet communicating with its inner cavity are arranged outside the function valve housing. It is characterized in that: The working valve housing is provided with a raw water inlet (2), a raw water outlet (1), a pure water inlet (7), a pure water outlet (6) and a flow regulating water tank (12). The one-way valve (8) is rotatably connected to the inner cavity of the working valve housing. The one-way valve (8) is provided with a central hole (5), a pure water through hole (4) and a return hole (3). The raw water inlet (2) is communicated with the pure water through hole (4) through the flow regulating water tank (12). The pure water through hole (4) is communicated with the central hole (5). The central hole (5) is communicated with the pure water outlet (6). The pure water inlet (7) is communicated with the return hole (3). The return hole (3) is communicated with the raw water outlet (1) through the flow regulating water tank (12).

2. The function valve for preventing frequent startup of zero stale water in a water purifier according to claim 1, wherein: The working valve housing includes a detachable top cover (9) and a bottom cover (10). The top cover (9) and the bottom cover (10) are detachably connected by a plurality of screw rods (11) around.

3. The function valve for preventing frequent start-up of zero stale water in a water purifier according to claim 2, wherein: The raw water outlet (1) and the raw water inlet (2) are symmetrically arranged on the top cover (9), and the raw water outlet (1) and the raw water inlet (2) are on the same axis.

4. The function valve for preventing frequent start-up of zero stale water in a water purifier according to claim 3, characterized in that: The pure water outlet (6) and the pure water inlet (7) are symmetrically arranged on the bottom cover (10), and the pure water outlet (6) and the pure water inlet (7) are on the same axis and parallel to the raw water outlet (1) and the raw water inlet (2).

5. The function valve for preventing frequent start-up of zero stale water in a water purifier according to claim 3, characterized in that: The pure water outlet (6’) and the pure water inlet (7’) are symmetrically arranged on the bottom cover (10), and the pure water outlet (6’) and the pure water inlet (7’) are parallel and perpendicular to the raw water outlet (1) and the raw water inlet (2).

6. The function valve for preventing frequent start-up of zero stale water in a water purifier according to claim 3 or 4, characterized in that: The flow regulating water tank (12) is arranged on the top cover (9). The flow regulating water tank (12) is arc-shaped, and its two ends are respectively communicated with the raw water outlet (1) and the raw water inlet (2). The bottom end of the flow regulating water tank (12) penetrates through the bottom end face of the top cover.

7. The function valve for preventing frequent start-up of zero stagnant water in a water purifier according to claim 6, characterized in that: The return hole (3) penetrates through the top end face and the bottom end face of the one-way valve (8). The top end of the return hole (3) is communicated with the flow regulating water tank (12). The bottom end of the return hole (3) is communicated with the pure water inlet (7). A rubber gasket (13) capable of covering the flow regulating water tank (12) is fixed on one side of the return hole (3).

8. The function valve for preventing frequent startup of zero stale water in a water purifier according to claim 7, wherein: The bottom end of the central hole (5) penetrates through the bottom end face of the one-way valve (8) and is communicated with the pure water outlet (6).

9. The function valve for preventing frequent startup of zero stale water in a water purifier according to claim 8, characterized in that: The top end face of the one-way valve (8) has a rotary drive block (14), and a cross groove (15) is arranged on the rotary drive block (14).

10. The actuation valve for preventing frequent start-up of zero stagnant water in a water purifier according to claim 8, characterized in that: Sealing rings are respectively arranged at the joints between the top cover (9), the bottom cover (10) and the one-way valve (8).

Images