Water leakage prevention device and ice maker

Abstract

The utility model relates to the technical field of ice making, and provides a leakproof device and an ice maker, the ice maker comprises a water tank and a leakproof device, the leakproof device is arranged in the water tank, the leakproof device comprises a valve casing and a sealing mechanism, the valve casing is provided with a cavity, a water inlet channel and a water outlet channel, and at least part of the sealing mechanism is arranged in the cavity. The sealing mechanism is used for detecting liquid level information in the water tank and blocking or connecting the water inlet channel and the water outlet channel. Liquid firstly enters the water inlet channel and then is input to the water inlet end of the water tank through the cavity and the water outlet channel, and water inlet of the water tank is completed. When the liquid level switch in the water tank loses efficacy, the closing mechanism detects that the liquid level information in the water tank is abnormal, and correspondingly acts to block the communication of the water inlet channel and the water outlet channel and further close the water inlet of the water tank, so that the water leakage phenomenon caused by excessive water inlet in the water tank is prevented, and the normal use of the ice maker is guaranteed; and the influence on the user experience is avoided.

Description

Technical Field

[0001] This utility model relates to the field of ice-making technology, and in particular to a leak-proof device and an ice maker. Background Technology

[0002] Currently, ice makers using this technology typically have a level switch inside the water tank to detect the water level. To save on piping, the water tank is divided into a room temperature water zone and a cold water zone, requiring separate water replenishment lines and valves for each zone. Furthermore, if the level switch malfunctions—for example, due to jamming, loose wiring, or a faulty control board—excessive water can enter the tank, causing leaks and rendering the ice maker unusable, negatively impacting the user experience. To prevent leaks caused by a malfunctioning level switch, this technology also requires mechanical float switches in both zones, increasing production costs. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the related art. To this end, this utility model proposes a leak-proof device, which helps to prevent water tank leakage, ensures the normal use of the ice maker, and avoids affecting the user experience.

[0004] This utility model also proposes an ice maker.

[0005] The leak-proof device according to a first aspect of the present invention includes:

[0006] The valve housing has a chamber, an inlet channel, and an outlet channel. The inlet channel is connected to the outlet channel through the chamber. The inlet channel is used to connect to an external water source, and the outlet channel is used to connect to the inlet end of the water tank.

[0007] A sealing mechanism, at least part of which is located within the chamber, is used to detect the liquid level information in the water tank and to block or open the water inlet channel and the water outlet channel.

[0008] According to an embodiment of this utility model, a leak-proof device is installed on the water tank. The inlet channel and the outlet channel are connected. Liquid first enters the inlet channel and then flows through the chamber and the outlet channel to the inlet end of the water tank, completing the water intake. When the liquid level switch in the water tank fails, the sealing mechanism detects the abnormal liquid level information in the water tank and takes corresponding action to block the connection between the inlet channel and the outlet channel, thereby shutting off the water intake of the water tank. This helps prevent leakage due to excessive water in the tank, ensuring the normal operation of the ice maker and avoiding affecting the user experience.

[0009] According to one embodiment of the present invention, the closing mechanism includes:

[0010] A sealing unit is disposed within the cavity and is movable relative to the cavity. The sealing unit is used to block or open the water inlet channel and the water outlet channel.

[0011] An actuation unit is used to detect the liquid level information of the water tank. The actuation unit is located outside the chamber and is movably connected to the valve body.

[0012] The pushing unit is connected to the sealing unit in a driving manner, so that the sealing unit can switch between a blocking state and a conducting state.

[0013] According to one embodiment of the present invention, a sealed liquid passage cavity is formed between the inner wall of the chamber and the sealing unit, and the water inlet channel and the water outlet channel are both connected to the sealed liquid passage cavity.

[0014] According to one embodiment of the present invention, the sealing unit is provided with a sealing surface, which is used to seal with at least one of the water inlet channel and the water outlet channel.

[0015] According to one embodiment of the present invention, the sealing unit includes:

[0016] A valve core is disposed in the chamber and movably connected to the valve housing; the actuating unit is throttle connected to one end of the valve core.

[0017] A diaphragm is disposed in the chamber and connected to the valve body. The diaphragm has a gap between itself and the water inlet channel and the water outlet channel. The diaphragm is elastic.

[0018] The diaphragm is connected to the other end of the valve core so that the diaphragm can deform to block the connection between the inlet channel and the outlet channel.

[0019] According to one embodiment of the present invention, the diaphragm is detachably connected to the valve housing.

[0020] According to one embodiment of the present invention, the pushing unit includes:

[0021] Float;

[0022] A transmission arm, one end of which is fixedly connected to the float, and the other end of which is rotatably connected to the valve body;

[0023] The transmission arm is equipped with a transmission part, which is connected to the sealing unit in a transmission manner.

[0024] According to one embodiment of the present invention, the valve housing is provided with a support seat, which abuts against the transmission arm to limit the relative angle between the valve housing and the transmission arm.

[0025] According to one embodiment of the present invention, the valve housing includes a first housing and a second housing, the first housing and the second housing being detachably connected to form the chamber.

[0026] An ice maker according to a second aspect embodiment of the present invention includes:

[0027] A water tank, wherein the water tank is provided with a water inlet;

[0028] The leak-proof device described in the first aspect embodiment above is disposed inside the water tank;

[0029] The water inlet channel is used to connect with a water source, and the water outlet channel is connected with the water inlet end.

[0030] According to one embodiment of the present invention, the water tank is provided with a normal temperature water zone and a cold water zone, and the normal temperature water zone and the cold water zone are connected.

[0031] The room temperature water zone overflows and replenishes water to the cold water zone, and the leak-proof device is installed in the cold water zone.

[0032] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a structural schematic diagram of the water-proof device provided in this embodiment of the utility model.

[0035] Figure 2 This is a first-view cross-sectional schematic diagram of the water-proof device provided in this embodiment of the utility model.

[0036] Figure 3 This is a cross-sectional schematic diagram from a second perspective of the water-proof device provided in this embodiment of the present invention.

[0037] Figure 4This is an exploded view of the water-proof device provided in the embodiment of this utility model.

[0038] Figure 5 This is a schematic diagram of the structure of the leak-proof device provided in this embodiment of the utility model installed in a water tank.

[0039] Figure label:

[0040] 100. Valve housing; 110. Chamber; 120. First housing; 121. Through hole; 122. Support seat; 123. Mounting shaft; 130. Second housing; 131. Water inlet channel; 132. Water outlet channel; 200. Water tank; 210. Water inlet end; 220. Level switch; 230. Normal temperature water zone; 240. Cold water zone; 250. Partition plate; 251. Overflow groove;

[0041] 300. Closing mechanism; 310. Sealing unit; 320. Pushing unit; 311. Valve core; 3111. Protruding post; 3112. Limiting boss; 312. Diaphragm; 3121. Sealing surface; 3122. Limiting groove; 321. Float; 322. Transmission arm; 3221. Transmission part; 400. Quick-connect interface; A. Sealed liquid passage chamber. Detailed Implementation

[0042] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0043] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0045] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0046] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0047] Currently, ice makers in this technology typically have a level switch 220 inside the water tank 200 to detect the water level. To save on piping, the water tank 200 is divided into a room temperature water zone 230 and a cold water zone 240, requiring separate water replenishment lines and valves for each zone. Furthermore, if the level switch 230 malfunctions (e.g., jamming, loose wiring, or a faulty control board), excessive water can enter the water tank 200, causing leaks and rendering the ice maker unusable, negatively impacting the user experience. To prevent leaks due to level switch malfunction, both zones also require mechanical float switches, increasing production costs.

[0048] The following is combined Figures 1-5 The following describes the anti-leakage device and ice maker according to embodiments of the present invention. It is understood that, in embodiments of the present invention, the ice maker includes a water tank 200 and an anti-leakage device. The water tank 200 is provided with a water inlet 210, and the anti-leakage device is disposed inside the water tank 200.

[0049] Understandably, referring to Figures 1 to 5In this embodiment of the utility model, the anti-leakage device includes a valve housing 100 and a sealing mechanism 300. The valve housing 100 is provided with a chamber 110, a water inlet channel 131 and a water outlet channel 132. The water inlet channel 131 is connected to the water outlet channel 132 through the chamber 110 and is used to connect to an external water source. The water outlet channel 132 is connected to the water inlet end 210 of the water tank 200. At least part of the sealing mechanism 300 is located in the chamber 110. The sealing mechanism 300 is used to detect the liquid level information in the water tank 200 and to block or open the water inlet channel 131 and the water outlet channel 132.

[0050] According to the embodiment of this utility model, a leak-proof device is installed on the water tank 200. The inlet channel 131 and the outlet channel 132 are connected. Liquid first enters the inlet channel 131, and then enters the inlet end 210 of the water tank 200 through the chamber 110 and the outlet channel 132, thus completing the water intake of the water tank 200. When the liquid level switch 220 in the water tank 200 fails, the sealing mechanism 300 detects the abnormal liquid level information in the water tank 200 and takes corresponding action to block the connection between the inlet channel 131 and the outlet channel 132, thereby shutting off the water intake of the water tank 200. This helps prevent leakage due to excessive water intake in the water tank 200, ensuring the normal operation of the ice maker and avoiding affecting the user experience.

[0051] Understandably, referring to Figures 1 to 4 In this embodiment of the utility model, the valve housing 100 includes a first housing 120 and a second housing 130. The first housing 120 and the second housing 130 are detachably connected to form a chamber 110, wherein the water inlet channel 131 and the water outlet channel 132 are both provided in the second housing 130.

[0052] Specifically, refer to Figures 1 to 4 In this embodiment, the first housing 120 and the second housing 130 are detachably connected by bolts. Of course, in some embodiments, the first housing 120 and the second housing 130 can also be detachably connected by snap-fit ​​or other means, which is not limited here.

[0053] It should be noted that in this embodiment, the sealing mechanism 300 may be partially or entirely located in the chamber 110, and the appropriate installation method can be selected according to the detection method. The detection of the liquid level information of the water tank 200 by the sealing mechanism 300 can be understood as follows: the sealing mechanism 300 can obtain the liquid level height by contacting the liquid in the water tank 200, or the sealing mechanism 300 can determine the liquid level height in the water tank 200 in a non-contact manner. For example, an image acquisition device can be used to achieve non-contact determination, which is not limited here.

[0054] Specifically, refer to Figures 1 to 4In this embodiment of the present invention, the sealing mechanism 300 includes a sealing unit 310 and a pushing unit 320. The sealing unit 310 is disposed inside the chamber 110 and can move relative to the chamber 110. The sealing unit 310 is used to block or open the water inlet channel 131 and the water outlet channel 132. The pushing unit 320 is used to detect the liquid level information of the water tank 200. The pushing unit 320 is located outside the chamber 110 and is movably connected to the valve shell 100. The pushing unit 320 is drivenly connected to the sealing unit 310 so that the sealing unit 310 can switch between the blocking state and the opening state.

[0055] With the above structure, the actuating unit 320 can obtain the liquid level information of the water tank 200 and drive the sealing unit 310 to perform corresponding actions according to the liquid level information, so as to block or open the water inlet channel 131 and the water outlet channel 132, so as to make the water tank 200 start or stop. Specifically, when the liquid level is lower than the set low level, the actuating unit 320 will switch the sealing unit 310 to the open state, so that the water inlet channel 131 and the water outlet channel 132 are connected; when the liquid level reaches the set high level, the actuating unit 320 will switch the sealing unit 310 to the blocking state through the transmission connection, blocking the connection between the water inlet channel 131 and the water outlet channel 132, and preventing the water tank 200 from overflowing.

[0056] This can be understood as follows: when the liquid level switch 220 originally installed in the water tank 200 fails, it cannot control the water inlet command of the water tank 200. Water continuously enters the water tank 200. However, due to the structure of this device, the liquid will first enter the device and then be input to the water inlet 210 of the water tank 200 through the water outlet channel 132. When the continuous water inlet in the water tank 200 reaches the liquid level height set by the push unit 320 of this device, the push unit 320 will correspondingly push the sealing unit 310 to act, blocking the connection between the water inlet channel 131 and the water outlet channel 132. The structure is reasonable, which helps to prevent water leakage and facilitates automatic control and adjustment, and has high reliability.

[0057] Specifically, refer to Figure 2 and Figure 3 In this embodiment of the invention, a sealed liquid passage chamber A is formed between the inner wall of the chamber 110 of the valve housing 100 and the sealing unit 310. Both the inlet channel 131 and the outlet channel 132 are connected to the sealed liquid passage chamber A. Because both the inlet channel 131 and the outlet channel 132 are connected to the sealed liquid passage chamber A, it is ensured that the liquid remains sealed during flow, preventing external impurities from entering or liquid leakage. This simplifies the operation process and makes water inlet and outlet more convenient.

[0058] Understandably, referring to Figures 1 to 4In this embodiment of the present invention, the sealing unit 310 is provided with a sealing surface 3121, which is used to seal with at least one of the water inlet channel 131 and the water outlet channel 132.

[0059] Specifically, refer to Figures 1 to 4 In this embodiment, the sealing surface 3121 is sealed to the water outlet channel 132. This can be understood as the sealing surface 3121 moving with the sealing unit 310 to seal the water outlet channel 132, thereby blocking the connection between the water inlet channel 131 and the water outlet channel 132. Of course, in some embodiments, the sealing surface 3121 can be sealed to the water inlet channel 131, or the sealing surface 3121 can seal both the water inlet channel 131 and the water outlet channel 132 simultaneously, which can also block the connection between the water inlet channel 131 and the water outlet channel 132. This is not limited here.

[0060] Specifically, refer to Figures 2 to 4 In this embodiment of the invention, the distance between the end face of the water inlet channel 131 and the sealing surface 3121 is greater than the distance between the end face of the water outlet channel 132 and the sealing surface 3121. This structure allows the water outlet channel 132 to be sealed to the sealing surface 3121, preventing a situation where the sealing surface 3121 and the water inlet channel 131 are sealed together. In other words, sealing only the water outlet channel 132 helps prevent backflow of water. Furthermore, compared to sealing both the water inlet channel 131 and the water outlet channel 132 simultaneously with the sealing surface 3121, the structural design is simpler, and the materials required only consider the pressure of sealing the water outlet channel 132, thus reducing manufacturing costs and improving economic efficiency.

[0061] It should be noted that, in this embodiment, when the sealing surface 3121 only seals with the water outlet channel 132, the area of ​​the sealing surface 3121 only needs to be set to be able to seal the water outlet channel 132. For example, the area of ​​the sealing surface 3121 is larger than the cross-sectional area of ​​the water outlet channel 132. In some embodiments, the sealing surface 3121 seals both the water inlet channel 131 and the water outlet channel 132, and the area of ​​the sealing surface 3121 can be set to be able to seal both the water inlet channel 131 and the water outlet channel 132.

[0062] Understandably, referring to Figures 1 to 4In this embodiment of the present invention, the sealing unit 310 includes a valve core 311 and a diaphragm 312. The valve core 311 is disposed in the chamber 110 and is movably connected to the first housing 120 of the valve housing 100. The pushing unit 320 is drivenly connected to one end of the valve core 311. The diaphragm 312 is disposed in the chamber 110 and is connected to both the first housing 120 and the second housing 130 of the valve housing 100. There is a gap between the diaphragm 312 and the water inlet channel 131 and the water outlet channel 132. The diaphragm 312 is elastic. The other end of the diaphragm 312 is drivenly connected to the valve core 311 so that the diaphragm 312 can deform to block the connection between the water inlet channel 131 and the water outlet channel 132.

[0063] Using the above structure, the pushing unit 320 pushes the valve core 311 to move. While the valve core 311 moves, it also acts on the diaphragm 312, causing the diaphragm 312 to deform. The deformed area of ​​the diaphragm 312 can block the connection between the water inlet channel 131 and the water outlet channel 132. Specifically, in this embodiment, the deformed area of ​​the diaphragm 312 is the sealing surface 3121. Therefore, the deformed area, which is also the sealing surface 3121, blocks one end of the water outlet channel 132 to form a sealing fit, thereby shutting off the water inlet of the water tank 200. The structure is simple, the transmission is reliable, and the diaphragm 312 can adapt to the end face of the water outlet channel 132 to a certain extent to maintain the sealing effect.

[0064] Of course, in some embodiments, the sealing unit 310 of the sealing mechanism 300 can also be rotatably connected to the valve housing 100, which can block or open the water inlet channel 131 and the water outlet channel 132, and is not limited here.

[0065] It should be noted that when the water tank 200 resumes water intake, the push unit 320 and the valve core 311 reset, the deformed area of ​​the diaphragm 312 rebounds to restore the original shape of the diaphragm 312, and maintains a distance between it and the water inlet channel 131 and the water outlet channel 132. Furthermore, due to the diaphragm 312, when the force is removed, the diaphragm 312 can provide a restoring force to help the valve core 311 return to the predetermined middle or fully closed position, thereby achieving rapid and normal water intake and improving the working efficiency of the ice maker.

[0066] Specifically, refer to Figures 1 to 4 In this embodiment, a through hole 121 is provided on one side wall of the first housing 120 away from both the water inlet channel 131 and the water outlet channel 132. A protrusion 3111 is provided on one end face of the valve core 311. The protrusion 3111 passes through the through hole 121 and is in transmission cooperation with the push unit 320. Of course, in some embodiments, the push unit 320 can also extend into the chamber 110 of the valve housing 100 and be in transmission cooperation with the valve core 311. This is not limited here.

[0067] It should be noted that, referring to Figure 2 and Figure 3 In this embodiment, the diaphragm 312 is connected to the first housing 120 and the second housing 130 of the valve housing 100. The end face of the diaphragm 312 facing away from the valve core 311 cooperates with the inner wall area of ​​the chamber 110 near the water inlet channel 131 and the water outlet channel 132 to form the aforementioned sealed liquid passage chamber A. Therefore, when the valve core 311 moves, liquid can be prevented from flowing through the gap between the valve core 311 and the chamber 110 to the joint between the push unit 320 and the valve core 311, and then flowing into the water tank 200.

[0068] Specifically, refer to Figures 2 to 4 In this embodiment, a limiting groove 3122 is provided on one end face of the diaphragm 312 near the valve core 311. It can be understood that the sealing surface 3121 corresponds to the limiting groove 3122, and the sealing surface 3121 is located on the other end face of the diaphragm 312, that is, on one end face near both the inlet channel 131 and the outlet channel 132. A limiting boss 3112 is provided on one end face of the valve core 311 near the diaphragm 312. The limiting boss 3112 is inserted into the limiting groove 3122. Therefore, when the valve core 311 moves, the limiting boss 3112 acts on the limiting groove 3122. Through the deformation of the diaphragm 312, the sealing surface 3121 is sealed with the outlet channel 132. The structure is simple and compact, and the relative positions of the valve core 311 and the diaphragm 312 are determined, which is beneficial to the normal operation of the anti-leakage device.

[0069] Of course, in some embodiments, the sealing unit 310 may also include only the valve core 311, which is movably disposed in the chamber 110 and has a sealing fit with the inner wall of the chamber 110, so as to prevent liquid from flowing through the gap between the valve core 311 and the chamber 110 to the mating point between the push unit 320 and the valve core 311 when the valve core 311 moves, and then flowing into the water tank 200.

[0070] It should be noted that, in this embodiment, the diaphragm 312 can be made of rubber, metal, or plastic, etc., and is not limited thereto. Due to its unique structure, the diaphragm 312 can typically provide reliable sealing performance under extreme operating conditions, including high temperature, high pressure, or corrosive environments. It has good resilience and compressibility, a simple structure, and is easy to maintain.

[0071] Reference Figure 2 and Figure 3In this embodiment, the diaphragm 312 is detachably connected to the first housing 120 and the second housing 130 of the valve housing 100, facilitating maintenance and replacement. Specifically, the diaphragm 312 is detachably connected to the first housing 120 and the second housing 130 of the valve housing 100 by means such as snap-fit ​​or bolt connection. Of course, in some embodiments, the diaphragm 312 can also be welded or integrally formed with the first housing 120 or the second housing 130 of the valve housing 100, which is not limited here.

[0072] In this embodiment of the utility model, the first housing 120 and the second housing 130 are provided with snap-fit ​​recesses on their opposite end faces, and the edge end of the diaphragm 312 is provided with snap-fit ​​protrusions. The snap-fit ​​protrusions and snap-fit ​​recesses are snap-fitted together to install the diaphragm 312. The structure is simple and easy to disassemble and maintain.

[0073] Understandably, referring to Figures 1 to 5 In this embodiment of the utility model, the pushing unit 320 includes a float 321 and a transmission arm 322. One end of the transmission arm 322 is fixedly connected to the float 321, and the other end of the transmission arm 322 is rotatably connected to the first housing 120 of the valve housing 100. The transmission arm 322 is provided with a transmission part 3221, which is connected to the sealing unit 310 in a transmission manner.

[0074] With the above configuration, the structure of the actuating unit 320 consists of a float 321 and a transmission arm 322. This can be understood as follows: when the level switch 220 of the water tank 200 fails, water continues to enter the water tank 200. The float 321 rises, driving the transmission arm 322 to rotate. Consequently, the valve core 311 moves, pushing the diaphragm 312 to deform to the end face of the water outlet channel 132, and pressing the diaphragm 312 and the water outlet channel 132 together to seal them. When the level switch 220 is under maintenance, or the water level in the water tank 200 drops, the float 321 sinks, driving the transmission arm 322 to rotate in the opposite direction, thereby resetting the valve core 311. This structure achieves automatic control and adjustment, is simple in structure, has low manufacturing cost, and is easy to maintain.

[0075] It should be noted that, referring to Figure 2 and Figure 3 In this embodiment, the float 321 is hollow inside. Of course, in some embodiments, the float 321 can also be solid inside. The specific choice depends on the relative density of the material and the density of the liquid in the water tank 200, and is not limited here.

[0076] It should also be noted that, referring to Figures 1 to 4In this embodiment of the present invention, the transmission arm 322 is rotatably mounted on the first housing 120 of the valve housing 100 via the mounting shaft 123. The mounting shaft 123 can be understood as a pin, mounting post, stud, etc. The transmission arm 322 and the float 321 can be integrally formed or detachably connected, such as by bolts, etc., which is not limited here. In addition, the transmission arm 322 and the float 321 can be made of the same material or different materials, as long as it can ensure that the float 321 can drive the transmission arm 322 to rotate when it floats, which is not limited here.

[0077] Of course, in some embodiments, the transmission arm 322 may also be movably connected to the first housing 120 of the valve housing 100, and the movement of the transmission arm 322 is driven by the float 321, which in turn pushes the valve core 311 to move. This is not limited here.

[0078] Alternatively, in some embodiments, the aforementioned pushing unit 320 may also employ a drive motor in conjunction with a detector. The detector detects the liquid level in the water tank 200 and outputs a command to the drive motor, which in turn drives the valve core 311 to reciprocate. This is not limited to any particular embodiment.

[0079] Understandably, referring to Figures 1 to 4 In this embodiment of the present invention, a support seat 122 is provided on the first housing 120 of the valve housing 100. The support seat 122 abuts against the transmission arm 322 to limit the relative angle between the first housing 120 of the valve housing 100 and the transmission arm 322, thereby limiting the installation angle of the entire push unit 320 and maintaining the installation stability of the push unit 320.

[0080] Specifically, in this embodiment of the present invention, the support seat 122 is formed in the first housing 120 of the valve housing 100. The support seat 122 has a support recess, and an installation shaft 123 is installed on the side wall of the support recess. The end of the transmission arm 322 is inserted into the support recess and rotatably sleeved on the installation shaft 123. The lower surface of the transmission arm 322 cooperates with the bottom wall of the support recess to limit the angle of the initial installation position of the transmission arm 322.

[0081] Understandably, referring to Figure 2 , Figure 3 and Figure 5 In this embodiment of the utility model, the water tank 200 is provided with a water inlet interface at the water inlet end 210. Both the water inlet channel 131 and the water outlet channel 132 are equipped with quick-connect interfaces 400 for quick connection with water pipes. The quick-connect interface 400 of the water outlet channel 132 is connected to the water inlet interface of the water tank 200 through a water pipe to realize water intake.

[0082] Specifically, refer to Figure 5In this embodiment of the utility model, the water tank 200 is provided with a normal temperature water zone 230 and a cold water zone 240, and the normal temperature water zone 230 and the cold water zone 240 are connected; wherein, the normal temperature water zone 230 overflows to replenish water to the cold water zone 240, and the anti-leakage device is provided in the cold water zone 240.

[0083] Understandably, compared to the method of replenishing water to two zones separately in related technologies, the water inlet 210 in this embodiment is located at the room temperature water zone 230. Water is replenished to the room temperature water zone 230 through the water inlet 210, and the room temperature water zone 230 overflows to replenish the cold water zone 240. This eliminates the need for multiple water replenishment pipelines and valves, thereby reducing production costs. Furthermore, a leak-proof device is provided in the cold water zone 240. Only one leak-proof device is needed to prevent leaks in both the room temperature water zone 230 and the cold water zone 240, resulting in high reliability.

[0084] Specifically, refer to Figure 5 In this embodiment of the utility model, the water tank 200 is provided with a partition 250, which divides the water tank 200 into a normal temperature water zone 230 and a cold water zone 240. The upper end of the partition 250 is provided with an overflow groove 251, which allows water to overflow from the normal temperature water zone 230 to the cold water zone 240. The structure is simple and the production cost is low.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the present utility model do not depart from the spirit and scope of the technical solutions of the present utility model and should be covered within the protection scope of the present utility model.

Claims

1. A leak-proof device, characterized in that, include: The valve housing has a chamber, an inlet channel, and an outlet channel. The inlet channel is connected to the outlet channel through the chamber. The inlet channel is used to connect to an external water source, and the outlet channel is used to connect to the inlet end of the water tank. A sealing mechanism, at least part of which is located within the chamber, is used to detect the liquid level information in the water tank and to block or open the water inlet channel and the water outlet channel.

2. The leak-proof device according to claim 1, characterized in that, The enclosure mechanism includes: A sealing unit is disposed within the cavity and is movable relative to the cavity. The sealing unit is used to block or open the water inlet channel and the water outlet channel. An actuation unit is used to detect the liquid level information of the water tank. The actuation unit is located outside the chamber and is movably connected to the valve body. The pushing unit is connected to the sealing unit in a driving manner, so that the sealing unit can switch between a blocking state and a conducting state.

3. The leak-proof device according to claim 2, characterized in that, A sealed liquid passage chamber is formed between the inner wall of the chamber and the sealing unit, and both the water inlet channel and the water outlet channel are connected to the sealed liquid passage chamber.

4. The leak-proof device according to claim 2, characterized in that, The sealing unit is provided with a sealing surface, which is used to seal against at least one of the water inlet channel and the water outlet channel.

5. The leak-proof device according to any one of claims 2 to 4, characterized in that, The sealing unit includes: A valve core is disposed in the chamber and movably connected to the valve housing; the actuating unit is throttle connected to one end of the valve core. A diaphragm is disposed in the chamber and connected to the valve body. The diaphragm has a gap between itself and the water inlet channel and the water outlet channel. The diaphragm is elastic. The diaphragm is connected to the other end of the valve core so that the diaphragm can deform to block the connection between the inlet channel and the outlet channel.

6. The leak-proof device according to claim 5, characterized in that, The diaphragm is detachably connected to the valve body.

7. The leak-proof device according to any one of claims 2 to 4, characterized in that, The propulsion unit includes: Float; A transmission arm, one end of which is fixedly connected to the float, and the other end of which is rotatably connected to the valve body; The transmission arm is equipped with a transmission part, which is connected to the sealing unit in a transmission manner.

8. The leak-proof device according to claim 7, characterized in that, The valve housing is provided with a support seat, which abuts against the transmission arm to limit the relative angle between the valve housing and the transmission arm.

9. The leak-proof device according to claim 1, characterized in that, The valve housing includes a first housing and a second housing, the first housing and the second housing being detachably connected to form the chamber.

10. An ice maker, characterized in that, include: A water tank, wherein the water tank is provided with a water inlet; The leak-proof device according to any one of claims 1 to 9, wherein the leak-proof device is disposed inside the water tank; The water inlet channel is used to connect with a water source, and the water outlet channel is connected with the water inlet end.

11. The ice maker according to claim 10, characterized in that, The water tank is provided with a normal temperature water zone and a cold water zone, and the normal temperature water zone and the cold water zone are connected. The room temperature water zone overflows and replenishes water to the cold water zone, and the leak-proof device is installed in the cold water zone.

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