A water inlet valve device

Abstract

The present invention discloses a water inlet valve device, comprising a water inlet conduit for being installed inside a water tank for conveying water, a nozzle for spraying water being installed at the water outlet end at the lower end of the water inlet conduit, a venturi component for connecting to a water outlet to drain water from the water tank being installed at the outer side of the water inlet conduit where the nozzle is located, the water inlet end and the nozzle of the venturi component are connected via a switching component, and the switching component is switched according to the water level via a float and a connected transmission mechanism; the present invention improves on the drawbacks of the existing device, and a conical cover wrapping the nozzle can effectively reduce such noise pollution, and an isolation plate for blocking the water outlet pipe is provided on the inner wall of the water outlet pipe near the nozzle through a rotating shaft, and the isolation plate blocks the water outlet pipe under the action of gravity, thereby reducing the noise transmitted from the water outlet pipe, and the practicability is strong.

Description

Technical Field

[0001] The invention relates to the field of bathroom technical equipment, in particular to a water inlet valve device. Background Art

[0002] At present, toilet water tank types can be divided into two types: one is a normal pressure water tank, that is, gravity water outlet, the water outlet of the normal pressure water tank needs a certain potential energy difference before water can be discharged; the other is a pressure water tank, which does not require a water tank height, can be lower than the toilet surface, and hidden in the toilet, but requires pressure energy storage, the product needs a certain strength, and the price is relatively expensive. Summary of the invention

[0003] The object of the present invention is to provide a water inlet valve device to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A water inlet valve device, comprising a water inlet conduit installed inside a water tank for conveying water, a nozzle for spraying water installed at the water outlet end of the lower end of the water inlet conduit, and a venturi component for connecting to a water outlet to drain water from the water tank installed outside the water inlet conduit where the nozzle is located;

[0006] The venturi assembly includes a water outlet pipe connected to the drainage conduit, the other end of the water outlet pipe is provided with a conical cover sleeved on the outer periphery of the nozzle, a gap is formed between the conical cover and the nozzle and the water inlet conduit, a switching assembly is provided above the nozzle, the switching assembly includes a baffle and a transmission mechanism, one end of the transmission mechanism is connected to the baffle, and the other end is connected to the No. 2 water storage tank, the No. 2 water storage tank is connected to the No. 2 floating body at the upper end through a connecting rod, the No. 2 floating body is slidably arranged in the buoy, the lower end of the buoy is provided with a through hole, and a floating part for unidirectional discharge of water is provided in the through hole, the buoy is provided with a hollow column slidably sleeved on the connecting rod at the top of the No. 2 water storage tank, and a rubber buffer pad is provided at the upper end of the hollow column;

[0007] A No. 1 water storage tank is provided on the top of the float, a through hole and a No. 2 magnet are provided at the bottom of the No. 1 water storage tank, and correspondingly, a No. 1 magnet is provided on the No. 2 float to attract the No. 2 magnet of the No. 1 water storage tank;

[0008] A No. 1 float is provided just below the through hole of the No. 1 water storage tank and is slidably mounted on the water inlet conduit. A water tank is provided on the upper surface of the No. 1 float, and a cavity is provided inside the water tank. A through hole is provided inside the water tank, and the through hole is located above the No. 2 water storage tank.

[0009] The first float is connected to the driving rod, and the upper end of the driving rod is connected to the control end of the water inlet valve through a connecting rod; an opening is provided on the outer side of the upper end of the float to facilitate the liquid in the water tank to enter the float so that the second float can obtain buoyancy.

[0010] As a further solution of the present invention: the second water storage tank is slidably arranged below the buoy.

[0011] As a further solution of the present invention: the gravity of the No. 2 float is A, the magnetic force between the No. 2 magnet and the No. 1 magnet is B, the gravity of the No. 2 water tank when fully loaded is C, and the gravity when empty is C, C>B>C.

[0012] As a further solution of the present invention: the diameter of the water outlet pipe is larger than the diameter of the water outlet of the nozzle.

[0013] As a further solution of the present invention: the inner wall of the water outlet pipe near the nozzle is provided with an isolation plate for blocking the water outlet pipe by rotating through a rotating shaft, and the inner wall of the water outlet pipe is also provided with an annular protrusion for limiting the rotation of the isolation plate to a blocking position.

[0014] As a further solution of the present invention: a clamping component is provided between the No. 1 float and the driving rod for adjusting the connection position between the two to adjust the water level height. The clamping component includes a connecting groove vertically arranged on the outside of the No. 1 float, and the inner wall of the connecting groove is provided with a friction area for cooperating with the tooth block on the surface of the driving rod to produce a connection pre-tightening.

[0015] As a further solution of the present invention: a plastic layer is provided on the outer side of the No. 1 magnet that is attracted by the No. 2 magnet.

[0016] As a further solution of the present invention: a fixing piece with adjustable height is provided on the outer side of the water inlet valve, and a protective cover is provided on the outer side of the water inlet valve.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention improves on the drawbacks of the existing devices, and while realizing automatic water replenishment of the water tank, a Venturi component is also set up, which will spray out water together with high-speed water flow under the action of negative pressure, thereby increasing the water flow rate; in addition, when water enters the water tank, the water outlet pipe and the nozzle are in a cut-off state. At this time, the water sprayed from the nozzle will be stored inside the water tank, but the water spraying will produce noise pollution. At this time, the conical cover wrapping the nozzle here can effectively reduce such noise pollution; the inner wall of the water outlet pipe near the nozzle is provided with an isolation plate for blocking the water outlet pipe through a rotating shaft, and the isolation plate will block the water outlet pipe under the action of gravity, thereby reducing the noise transmitted from the water outlet pipe, and the practicality is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the installation of the water outlet pipe of the present invention;

[0020] Figure 3 This is a schematic diagram of the installation of the second floating body of the present invention;

[0021] Figure 4 The figure is a schematic diagram of the connection between the second floating body and the first water storage tank of the present invention;

[0022] Figure 5 It is a schematic diagram of the structure inside the buoy in the present invention;

[0023] Figure 6 It is a schematic diagram of the structure of the protective cover in the present invention.

[0024] Among them: 1. Float No. 1; 2. Driving rod; 3. Connecting rod; 4. Water inlet valve; 5. Nozzle; 6. Baffle; 7. Float; 8. Opening; 9. Float No. 2; 10. Magnet No. 1; 11. Magnet No. 2; 12. Water storage tank No. 1; 13. Water storage tank No. 2; 14. Water outlet pipe; 15. Floating part; 16. Water inlet duct; 17. Isolation plate; 18. Drain duct; 19. Fixing part; 20. Rubber buffer pad; 21. Protective cover. DETAILED DESCRIPTION

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-6 In an embodiment of the present invention, a water inlet valve device includes a water inlet conduit 16 for being installed inside a water tank for conveying water, a nozzle 5 for spraying water is installed at the water outlet end of the lower end of the water inlet conduit 16, a Venturi component for connecting to a water outlet to drain water from the water tank is installed on the outside of the water inlet conduit 16 where the nozzle 5 is located, the water inlet end of the Venturi component and the nozzle 5 are connected by a switching component, the switching component is connected to the water inlet valve 4 arranged at the upper end of the water inlet conduit 16 for controlling the water flow to enter through a transmission mechanism for realizing power switching according to the water level height, a fixing member 19 with an adjustable height is provided on the outside of the water inlet valve, a protective cover 21 is provided on the outside of the water inlet valve, and a float 7 is installed on the water inlet conduit 16.

[0029] When the water level is lower than a certain position, the transmission mechanism opens the water inlet valve 4 and cuts off the connection of the water outlet pipe 14 of the nozzle 5, so that the water flows into the water tank; when the water level is higher than the set value, the transmission mechanism cuts off the water inlet valve 4 and connects the water outlet pipe 14 with the water spray 5 to facilitate the drainage of the water tank in the later stage;

[0030] The transmission mechanism includes a No. 1 float 1 slidably arranged on the outside of the upper end of the water inlet conduit 16 and a No. 1 water storage tank 12 arranged below the water inlet valve 4 for receiving water leaking from the water flow hole when the water inlet valve 4 is in an open state. The bottom of the No. 1 water storage tank 12 is provided with a water diversion hole for guiding the internal water flow to the top buffer tank of the No. 1 float 1. The No. 1 float 1 is connected to the control end of the water inlet valve 4 through a connecting rod assembly to control opening or closing. When the height of the No. 1 float 1 drops, the water inlet valve 4 is controlled to open through the connecting rod assembly. On the contrary, the water volume inside the water tank is sufficient, and the height of the No. 1 float 1 is at a higher position. At this time, the water valve 4 is in a closed state;

[0031] The transmission mechanism also includes a buoy 7 arranged at the lower end of the No. 1 water storage tank 12, a No. 2 float 9 is arranged in the internal chamber of the buoy 7, the No. 2 float 9 is connected to the No. 2 water storage tank 13 which is slidably arranged on the outside of the water inlet conduit 16 and is used to receive the water drops flowing out of the buffer tank at the top of the No. 1 float 1 through a connecting rod, the No. 2 water storage tank 13 is connected to the switching assembly through a connecting rod to provide switching power, the buoy 7 is provided with a hollow column slidably sleeved on the top connecting rod of the No. 2 water storage tank 13, and a rubber buffer pad 20 is provided at the upper end of the hollow column;

[0032] The outer side of the upper end of the float 7 is provided with an opening 8 for the liquid inside the water tank to enter, and the lower end of the float 7 is provided with a floating part 15 for unidirectional discharge of the water inside. A magnet locking assembly for generating an adsorption force is provided between the No. 2 float 9 and the No. 1 water storage tank 12. The magnet locking assembly includes a No. 1 magnet 10 arranged on the upper end of the No. 2 float 9 and a No. 2 magnet 11 located at the bottom of the No. 1 water storage tank 12. The No. 1 magnet 10 and the No. 2 magnet 11 are adsorbed to fix the position of the No. 2 float 9. As the water level increases, Liquid continuously enters the interior of the float 7 through the opening 8. At this time, the buoyancy of the No. 2 float 9 gradually increases with the increase of the water level. At this time, the No. 1 magnet 10 and the No. 2 magnet 11 are finally adsorbed and fixed. At this time, the No. 2 water storage tank 13 moves upward under the drive of the No. 2 float 9, and then drives the switching component to connect the nozzle 5 with the water outlet pipe 14. When the water level is insufficient, under the gravity of the No. 2 water storage tank 13 and the No. 2 float 9, the switching device blocks the nozzle 5, preventing water from spraying out of the water outlet pipe 14, so that water enters the water tank;

[0033] The maximum buoyancy of the float 7 is A, the gravity of the float 7 is A1, the magnetic force generated by the magnetic locking assembly is B, the gravity of the No. 2 water storage tank 13 when fully loaded is C1, and the gravity when empty is C2, C2>A+B-A1>C2.

[0034] The switching assembly includes a baffle 6 that cooperates with the nozzle 5. When the second water storage tank 13 moves downward, the baffle 16 blocks the nozzle 5 to cut off the connection between the nozzle 5 and the water outlet pipe 14, allowing water to enter the water tank.

[0035] The connecting rod assembly includes a driving rod 2 which is slidably arranged outside the water inlet conduit 16 and whose lower end is connected and fixed to the first float 1. The upper end of the driving rod 2 is connected to the control end of the water inlet valve 4 through a connecting rod 3.

[0036] A clamping component for adjusting the connection position between the driving rod 2 and the No. 1 float 1 is provided between the driving rod 2 and the No. 1 float 1. The clamping component includes a connecting groove vertically arranged on the outer side of the No. 1 float 1. The inner wall of the connecting groove is provided with a friction area for cooperating with the tooth block on the surface of the driving rod 2 to produce a connection pre-tightening, thereby pulling the position of the driving rod 2 in the connecting groove, thereby adjusting the height of the No. 1 float 1, and then adjusting the timing of the No. 1 float 1 triggering the water inlet valve 4, thereby adjusting the water level height.

[0037] The Venturi assembly includes an outlet pipe 14 connected to a drainage conduit 18 at one end, the diameter of the outlet pipe 14 is larger than the diameter of the water outlet of the nozzle 5, and the other end of the outlet pipe 14 is provided with a conical cover mounted on the outside of the nozzle 5, and there is a gap between the conical cover, the nozzle 5 and the water inlet pipe 16, so that when the water tank is draining, the switching assembly connects the outlet pipe 14 and the nozzle 5, and the high-pressure water flow generated by the nozzle 5 is sprayed along the outlet pipe 14. According to fluid mechanics, it can be known that high-speed water flow will generate negative pressure. Combined with the structure of the conical cover, the water inside the water tank located at the conical cover will be sprayed out together with the high-speed water flow under the action of negative pressure, thereby increasing the water flow rate, thereby ensuring the flushing effect. In addition, when water enters the water tank, the outlet pipe 14 and the nozzle 5 are in a cut-off state. At this time, the water sprayed from the nozzle 5 will be stored inside the water tank, but the water spraying will generate noise pollution. At this time, the conical cover wrapping the nozzle 5 here can effectively reduce this noise pollution.

[0038] In order to further reduce noise pollution, the inner wall of the water outlet pipe 14 near the nozzle 5 is provided with an isolation plate 17 for blocking the water outlet pipe 14 through a rotating shaft. The inner wall of the water outlet pipe 14 is also provided with an annular protrusion for limiting the rotation of the isolation plate 17 to a blocking position. The isolation plate 17 will press against the annular protrusion under the action of gravity, thereby reducing the noise transmitted from the water outlet pipe 14.

[0039] Working principle:

[0040] The process of water filling the water tank: when there is no water in the water tank at the beginning, the No. 1 float 1 falls down due to gravity, driving the driving rod 2 and the connecting rod 3 to open the water inlet valve 4, and water flows out from the small hole on the side of the water inlet valve 4, dripping into the No. 1 water tank 12, and the water passes through the small hole of the No. 1 water tank 12, and then drips into the water tank on the No. 1 float 1, increasing the weight of the float 1 and falling down, and the water passes through the small hole on the No. 1 float 1, and then drips into the No. 2 water tank 13, making the No. 2 water tank 13 slowly heavier, and the No. 2 water tank 13 is connected to the No. 2 float 9 through a connecting rod, and the No. 1 magnet 10 is installed above the No. 2 float 9, which attracts the No. 2 magnet 11 on the No. 1 water tank 12. When the gravity of the No. 2 water tank 13 is greater than the suction force of the magnet, the No. 2 water tank 13 drives the No. 2 float 9 in the buoy 7 to fall down, and at the same time drives the baffle 6 to block the nozzle 5. At this time, water fills the water tank until the water tank is full of water;

[0041] When the water tank is used to fill water, the water inlet valve 4 of the water tank is opened, and the external water enters the nozzle 5 from the water inlet through the water inlet valve 4 and the water inlet conduit 16. A switch control component baffle 6 is installed in front of the nozzle 5. The baffle 6 blocks the nozzle 5, and the water will enter the water tank because it does not rush out from the water outlet pipe 14. When the water level in the water tank is lower than the nozzle 5, the water sprayed from the nozzle 5 will rush onto the baffle 6 and make a sound. A movable isolation plate 17 is installed in the water outlet pipe 14. Since there is no water flow in the water outlet pipe 14, the isolation plate 17 blocks the water outlet pipe 14 due to gravity, thereby blocking the sound propagation and effectively reducing the sound.

[0042] The force exerted by the water from the nozzle 5 hitting the inclined surface of the baffle 6 is transmitted to the No. 2 water tank 13. Combined with the gravity of the water in the No. 2 water tank 13, the No. 2 water tank 13 can be locked from a distance to maintain the pulled-down state. This can improve reliability. When the water level rises subsequently and submerges the No. 2 water tank 13, the gravity of the water in the No. 2 water tank 13 disappears, while the water from the nozzle 5 still hits the inclined surface of the baffle 6 to effectively maintain the pull-down state. When the water level in the water tank continues to rise to the opening position 8 of the float 7, water slowly enters the float 7 from the opening position 8. At this time, the float 9 is subjected to the downward pulling force transmitted by the baffle 6 plus the gravity and buoyancy of the float 9 itself, and the downward pulling force plus the gravity is much greater than the buoyancy of the float 9. The water level in the water tank continues to rise slowly, and finally the float 1 floats up. The float 1 drives the driving rod 2 and the connecting rod 3 to close the water inlet valve 4, and the nozzle 5 does not flush water. The water in the nozzle 5 does not flush to the inclined surface of the baffle 6. At this time, the downward pulling force disappears. Since the downward pulling force transmitted by the baffle 6 disappears, the float 9 is only subjected to the action of gravity and buoyancy. When the water level in the float 7 also rises slowly, the buoyancy of the float 9 will be greater than the gravity, and the float 9 rises; the magnet 10 installed on the float 9 will attract the magnet 11 on the No. 1 water storage tank 12. At this time, the float 9 is subjected to the suction force of the magnet, its own buoyancy and gravity, and the suction force of the magnet plus the buoyancy is much greater than its own gravity, which can improve reliability. (Magnet locking assembly) At the same time, the float 9 floats up and drives the No. 2 water storage tank 13 to rise through the connecting rod. The rising of the No. 2 water storage tank 13 drives the baffle 6 to switch, so that the baffle 6 no longer blocks the nozzle 5.

[0043] Flushing process: At the beginning, the water tank is full of water, the state of the float 1 and the float 9 is floating, the switching device baffle 6 does not block the nozzle 5, and the isolation plate 17 blocks the outlet pipe 14. At this time, the water level in the water tank becomes low during flushing. The float 1 falls down, the water inlet valve 4 is opened, and the external water rushes out from the nozzle 5 through the water inlet valve 4 and the water inlet conduit 16. Since the baffle 6 does not block the nozzle 5, the nozzle 5 and the outlet pipe 14 will form a Venturi ejector. The water ejected by the ejector will flush the isolation plate 17, forming a negative pressure to absorb the water in the water tank, increase the injection flow, and flush it from the drainage conduit 18 to the toilet washing surface pipeline, thereby increasing the water flow on the washing surface.

[0044] The water level in the water tank continues to drop below the float 7. A float 15 is installed at the opening below the float 7. The float 15 has no buoyancy and falls down. The water in the float 7 will flow out. When the water flows out, the buoyancy of the float 9 disappears. At this time, the float 9 is attracted by the magnet 10 and the magnet 11 on the No. 1 water tank 12. The suction force is still greater than the gravity of the float 9. The water level in the water tank drops below the bottom of the No. 2 water tank 13. The water in the No. 2 water tank 13 becomes gravity. The sum of the two gravity forces is greater than the suction force of the magnet. The No. 2 water tank 13 drives the float 9 to fall down through the connecting rod. The falling of the No. 2 water tank 13 drives the baffle 6 to switch, so that the baffle 6 blocks the nozzle 5, and the external water will be introduced into the water tank, and the water tank starts to fill with water again. Because there is no water flow in the outlet pipe 14, the isolation plate 17 blocks the outlet pipe 14 due to gravity, blocking the sound propagation, which can effectively reduce the sound of water inflow.

[0045] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A water inlet valve device, comprising a water inlet conduit (16) installed inside a water tank for conveying water, a nozzle (5) for spraying water installed at the water outlet end of the lower end of the water inlet conduit (16), and a Venturi assembly for connecting to a water outlet to drain water from the water tank installed outside the water inlet conduit (16) where the nozzle (5) is located; It is characterized in that The venturi assembly comprises a water outlet pipe (14) connected to a drainage conduit (18), the other end of the water outlet pipe (14) is provided with a conical cover sleeved on the outer periphery of the nozzle (5), a gap exists between the conical cover and the nozzle (5) and the water inlet conduit (16), a switching assembly is provided above the nozzle (5), the switching assembly comprises a baffle and a transmission mechanism, one end of the transmission mechanism is connected to the baffle, and the other end is connected to a No. 2 water storage tank (13), the No. 2 water storage tank (13) is connected to a No. 2 floating body (9) at the upper end through a connecting rod, the No. 2 floating body (9) is slidably arranged in a buoy (7), a through hole is provided at the lower end of the buoy (7), a floating member (15) for facilitating one-way discharge of water is provided in the through hole, the buoy (7) is provided with a hollow column slidably sleeved on the top connecting rod of the No. 2 water storage tank (13), and a rubber buffer pad (20) is provided at the upper end of the hollow column; A first water storage tank (12) is provided on the top of the float (7), a through hole and a second magnet (11) are provided on the bottom of the first water storage tank (12), and correspondingly, a first magnet (10) is provided on the second float (9) to attract the second magnet (11) of the first water storage tank (12); A first floating body (1) is provided directly below the through hole of the first water storage tank (12) and is slidably mounted on the water inlet conduit (16). The first floating body (1) has a water tank on its upper surface and a cavity therein. A through hole is provided in the water tank, and the through hole is located above the second water storage tank (13). The first float (1) is connected to the driving rod (2), and the upper end of the driving rod (2) is connected to the control end of the water inlet valve (4) through a connecting rod (3); the outer side of the upper end of the float (7) is provided with an opening (8) for facilitating the liquid in the water tank to enter the float (7) so that the second float (9) can obtain buoyancy; The gravity of the second floating body (9) is A, the magnetic force of the second magnet (11) and the first magnet (10) is B, the gravity of the second water storage tank (13) when fully loaded is C1, and the gravity when unloaded is C2, C1>B>C2; The diameter of the water outlet pipe (14) is greater than the diameter of the water outlet of the nozzle (5); An isolation plate (17) for blocking the water outlet pipe (14) is provided on the inner wall of the water outlet pipe (14) near the nozzle (5) through rotation of a rotating shaft, and an annular protrusion is also provided on the inner wall of the water outlet pipe (14) for limiting the rotational blocking position of the isolation plate (17); A clamping component is provided between the first float (1) and the driving rod (2) for adjusting the connection position between the two so as to adjust the water level height. The clamping component comprises a connecting groove arranged vertically on the outer side of the first float (1). The inner wall of the connecting groove is provided with a friction area for cooperating with a tooth block on the surface of the driving rod (2) to generate a connection pre-tightening.

2. The water inlet valve device according to claim 1, characterized in that: A plastic layer is provided on the outer side of the first magnet (10) attracted by the second magnet (11).

3. The water inlet valve device according to claim 1, characterized in that: A fixing piece (19) with adjustable height is provided on the outside of the water inlet valve, and a protective cover (21) is provided on the outside of the water inlet valve.

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