Automatic liquid replenishment valve and reservoir

Abstract

The application relates to the technical field of valves, and provides an automatic liquid supplementing valve and a liquid storage container. The automatic liquid supplementing valve comprises a valve, a liquid level triggering mechanism, a fixed part provided with an upper limit part and a lower limit part, a triggering assembly comprising a driving triggering piece arranged on the fixed part in a liftable manner and a passive piece arranged on the valve, the passive piece being configured to open the valve when the driving triggering piece abuts against the lower limit part and to be out of the action range of the upper limit part when the driving triggering piece abuts against the upper limit part, a float arranged on the driving triggering piece in a liftable manner, the driving triggering piece being provided with an upper triggering part and a lower triggering part, and a steady-state maintaining assembly configured to exert a holding force on the driving triggering piece when the driving triggering piece is in the upper limit position and to release the holding force when the float exerts a downward thrust on the lower triggering part. The application controls the opening and closing of a liquid supply channel based on the liquid level of the liquid storage container, and can form a steady state when the liquid level of the liquid storage container does not reach a critical value, so that the stability of liquid in and out can be maintained and false triggering can be avoided.

Description

Technical Field

[0001] This application relates to the field of valve technology, and in particular to an automatic replenishing valve and a liquid storage container. Background Technology

[0002] In equipment such as humidifiers, water dispensers, and feeders, automatic liquid level control of storage containers is often required. Currently, the widely used float valves use a mechanical linkage method, which has problems such as easy jamming, poor sealing, and rapid wear. In addition, they are too sensitive to liquid level fluctuations. Even a small change in the liquid level can easily cause the valve to malfunction, resulting in insufficient reliability and difficulty in maintaining the stability of inlet and outlet liquids.

[0003] Therefore, there is an urgent need for an automatic replenishing valve that can effectively avoid malfunctions and has a stable operating range. Utility Model Content

[0004] Based on this, the present invention provides an automatic replenishing valve and a liquid storage container to solve the problem of poor stability of existing replenishing valves.

[0005] This utility model provides an automatic liquid replenishment valve for a liquid storage container, the liquid storage container including a liquid supply channel, and the automatic liquid replenishment valve comprising: A valve is movably installed in the liquid storage container to close or open the liquid supply channel; The liquid level triggering mechanism includes: A fixing part is fixed in the liquid storage container and is provided with an upper limit part and a lower limit part; The triggering component includes an active triggering member that is vertically and vertically disposed on the fixed part and a passive member disposed on the valve. The passive member is configured to: open the valve when the active triggering member abuts against the lower limit part, and disengage from its range of action when the active triggering member abuts against the upper limit part. A float is vertically mounted on the active trigger, which has an upper trigger and a lower trigger. The vertical range of the float is limited between the upper trigger and the lower trigger. A steady-state maintenance component, disposed between the active trigger and the fixed part, is configured to apply a holding force to the active trigger when it is in the upper limit position, and to release the holding force when the float applies a downward thrust to the lower trigger.

[0006] In one embodiment, the valve is sway-up and down in the liquid storage container, and the sway range of the valve covers the liquid supply channel.

[0007] In one embodiment, a locking component is provided between the valve and the fixing structure of the liquid storage container; The locking assembly includes a first magnetic element and a second magnetic element that can magnetically attract each other. The first magnetic element is disposed on the fixed structure of the liquid storage container, and the second magnetic element is disposed on the valve. When the first magnetic element and the second magnetic element attract each other, the valve closes the liquid supply channel.

[0008] In one embodiment, the active trigger is provided with a third magnetic attractor, and the passive member includes a fourth magnetic attractor disposed on the valve, wherein the fourth magnetic attractor and the second magnetic attractor are the same component; When the active trigger is in the lower limit position, the third magnetic attractor is located above the liquid supply channel, and the second magnetic attractor is located within the magnetic action range of the third magnetic attractor, and the magnetic attraction force of the third magnetic attractor on the second magnetic attractor is greater than the magnetic attraction force between the first magnetic attractor and the second magnetic attractor.

[0009] In one embodiment, a limit block is also fixedly installed inside the liquid storage container. The limit block is arranged within the trajectory range of the free end of the valve swinging around its connecting end, and its horizontal position corresponds to the third magnetic attractor on the active trigger when it is in the lower limit state.

[0010] In one embodiment, the steady-state maintenance component includes a fifth magnetic member and a sixth magnetic member, the fifth magnetic member being mounted on the upper limit portion of the fixed portion, and the sixth magnetic member being disposed at the upper end of the active trigger member; The magnetic force of the mutual attraction between the fifth magnetic element and the sixth magnetic element is greater than the weight of the active trigger element itself, and less than the sum of the weights of the float and the active trigger element.

[0011] In one embodiment, the third magnetic attractor and the sixth magnetic attractor are the same component.

[0012] In one embodiment, the lower limiting portion is located at the bottom of the liquid storage container; When the active triggering element abuts against the upper limit position, the lower triggering element is located at the bottom of the liquid storage container.

[0013] In one embodiment, the fixing part is a fixing rod fixed in the liquid storage container in a vertical direction; The active trigger is a cylindrical structure that can be lifted and sleeved on the fixed rod; The float is a sleeve-shaped structure that can be raised and lowered and sleeved on the active trigger.

[0014] On the other hand, the present invention also provides a liquid storage container, which includes an inner cavity container, an outer cavity container, and an automatic liquid replenishment valve of any of the above embodiments; The inner cavity container is built into the outer cavity container, and the bottom of the inner cavity container is provided with a liquid supply channel communicating with the outer cavity container. The automatic liquid replenishment valve is used to control the opening and closing of the liquid supply channel based on the liquid level of the outer cavity container.

[0015] Compared with the prior art, this utility model has at least the following beneficial effects: The automatic liquid replenishment valve of this invention senses changes in liquid level through a float and drives the triggering component in two stages: When the liquid level rises, the float rises independently first, and after reaching the upper limit, it abuts against the upper trigger. The buoyancy of the float acts as a driving force to push the active trigger to the upper limit position. The steady-state maintenance component applies a holding force to the active trigger to maintain its high-level steady state. At this time, the passive component moves out of the range of action of the active trigger, and the valve is in the closed state.

[0016] When the liquid level drops, the float descends independently until it reaches the lower limit, at which point it contacts the lower trigger. The float's own weight then exerts a downward force on the lower trigger. This downward force releases the holding force of the steady-state maintenance component, allowing the active trigger to fall to the lower limit position. At this point, the active trigger then activates the passive component to open the valve.

[0017] This step-by-step drive method of "separation first, then linkage", combined with the locking and unlocking mechanism of the active trigger at the upper and lower limit positions, constitutes a control logic with hysteresis. It effectively solves the problem of frequent start-stop of traditional liquid replenishment valves at critical liquid points. The "hysteresis range" it creates can suppress the interference caused by liquid surface fluctuations, greatly improve the stability and reliability of the system, and at the same time reduce the wear of moving parts and extend service life. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the liquid storage container in one embodiment; Figure 2 This is a schematic diagram of the automatic liquid replenishment valve in one embodiment; Figure 3 This is a schematic diagram of the automatic replenishing valve in a low-level steady state in one embodiment; Figure 4 and Figure 5 This is a schematic diagram of the automatic replenishing valve in a high-level steady state in one embodiment.

[0019] The reference numerals in the accompanying drawings include: inner cavity container 100, liquid supply channel 110, outer cavity container 200, automatic liquid replenishment valve 300, valve 310, liquid level triggering mechanism 320, fixing part 321, upper limit part 3211, lower limit part 3212, active triggering element 322, third magnetic attraction element 3221, upper triggering part 3222, lower triggering part 3223, passive element 323, float 324, second magnetic attraction element 325, sixth magnetic attraction element 326, fifth magnetic attraction element 327, first magnetic attraction element 328, and limiting block 329. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments.

[0021] As described in the background section, automatic liquid level control of storage containers is often required in equipment such as humidifiers, water dispensers, and feeders. Currently, the widely used float valves employ a mechanical linkage method, which suffers from problems such as easy jamming, poor sealing, and rapid wear. Furthermore, they are overly sensitive to liquid level fluctuations; even slight changes in the liquid level can easily cause valve malfunctions, resulting in insufficient reliability and difficulty in maintaining the stability of inlet and outlet liquids.

[0022] To address the aforementioned issues, this utility model provides an automatic replenishment valve 300 that controls the opening and closing of the supply channel 110 based on the liquid level of the storage container. It can also establish a steady state when the liquid level in the storage container does not reach the critical point, thereby avoiding false triggering and maintaining the stability of the inlet and outlet of the liquid.

[0023] Specifically, Figure 2 An automatic liquid replenishment valve 300 according to an embodiment of the present invention is shown. The automatic liquid replenishment valve 300 includes: Valve 310 is movably installed in the liquid storage container and is used to close or open the liquid supply channel 110. Liquid level triggering mechanism 320 includes: The fixing part 321 is fixed in the liquid storage container and is provided with an upper limit part 3211 and a lower limit part 3212; The triggering component includes an active trigger 322 that is vertically and flexibly disposed on the fixed part and a passive member 323 disposed on the valve 310. The passive member is configured to open the valve 310 when the active trigger 322 abuts against the lower limit part 3212 and to leave its range of action when the active trigger 322 abuts against the upper limit part 3211. A float 324 is vertically mounted on an active trigger 322. The active trigger 322 is provided with an upper trigger part 3222 and a lower trigger part 3223. The vertical range of the float 324 is limited between the upper trigger part 3222 and the lower trigger part 3223. A steady-state holding component is disposed between the active trigger 322 and the fixed part 321, and is configured to apply a holding force to the active trigger 322 when it is in the upper limit position, and to release the holding force when the float 324 applies a downward thrust to the lower trigger 3223.

[0024] The automatic liquid replenishment valve 300 of this utility model embodiment senses changes in liquid level through a float 324 and drives the triggering component in two stages: When the liquid level rises, the float 324 rises independently first, and after reaching the upper limit, it abuts against the upper trigger 3222. The buoyancy of the float 324 acts as a driving force to push the active trigger 322 up to the upper limit position 3211. The steady-state maintenance component applies a holding force to the active trigger 322 to maintain its high-level steady state. At this time, the passive component 323 is out of the range of action of the active trigger 322, and the valve 310 is in the closed state.

[0025] When the liquid level drops, the float 324 descends independently until it reaches the lower limit, at which point it comes into contact with the lower trigger 3223. At this point, the weight of the float 324 itself creates a downward thrust on the lower trigger 3223. Based on this downward thrust, the holding force of the steady-state maintenance component is released, allowing the active trigger 322 to fall to the lower limit position 3212. At this time, the active trigger 322 triggers the passive component 323 to open the valve 310.

[0026] This step-by-step drive method of "separation first, then linkage", combined with the locking and unlocking mechanism of the active trigger 322 at the upper and lower limit positions, constitutes a control logic with hysteresis. It effectively solves the problem of frequent start-stop of traditional liquid replenishment valves at critical liquid points. The "hysteresis range" it creates can suppress the interference caused by liquid surface fluctuations, greatly improve the stability and reliability of the system, and at the same time reduce the wear of moving parts and extend service life.

[0027] This utility model embodiment also provides a liquid storage container, which is provided with the automatic liquid replenishment valve 300 inside.

[0028] Figure 1 This is a schematic diagram of the liquid storage container. As shown in the diagram, the liquid storage container adopts a dual-chamber design, mainly comprising an inner chamber container 100 and an outer chamber container 200, with the inner chamber container 100 housed within the outer chamber container 200. The inner chamber container 100 is primarily used to store replenishment liquid, and its bottom has a liquid supply channel 110 that connects the inner chamber container 100 and the outer chamber container 200. The outer chamber container 200 serves as the working chamber, directly supplying the required liquid to external equipment or users. An automatic replenishment valve 300 is used to control the opening and closing of the liquid supply channel 110.

[0029] During actual operation, the liquid level in the outer cavity gradually decreases as the liquid is consumed. When the liquid level drops to a preset critical point, the automatic replenishment valve 300 will activate, automatically opening the liquid supply channel 110 connecting the two cavities. At this time, the liquid stored in the inner cavity flows into the outer cavity through this channel under the action of gravity or pressure, thus completing the replenishment operation in a timely and automatic manner and ensuring a continuous and stable liquid supply to the outer cavity.

[0030] The components of the automatic replenishing valve 300 of this utility model embodiment will be described in detail below with reference to the accompanying drawings.

[0031] like Figure 2 As shown, in this embodiment, the automatic replenishing valve 300 mainly includes two parts: a valve 310 and a liquid level triggering mechanism 320.

[0032] Valve 310 is located at the liquid supply channel 110 and is used to close or open the channel. It can be understood that the specific installation position and closing direction of valve 310 can be flexibly set according to design requirements. It can be arranged in the inner cavity container 100 to close the liquid supply channel 110 from top to bottom, or it can be installed in the outer cavity container 200 to close from bottom to top. Figure 2 The diagram shows a schematic embodiment in which the valve 310 is located inside the inner cavity container 100.

[0033] Further reference Figure 2 Valve 310 can be designed as a plate structure, such as a valve plate made of silicone material. The size of valve 310 should completely cover the liquid supply channel 110 to ensure a reliable seal. Silicone material is chosen here for two reasons: first, its lightweight nature facilitates the sensitive actuation of the liquid level trigger mechanism 320, thereby improving the response performance of the channel opening and closing; second, it has a certain elastic recovery characteristic, which helps valve 310 to smoothly reset after action, improving the overall reliability of operation.

[0034] In this embodiment, the valve 310 is movably disposed in the liquid storage container in a manner that allows it to be pivotally disposed on the bottom wall of the inner cavity container 100, and its pivoting range covers the liquid supply channel 110. For example, see... Figure 2 One end of valve 310 (left end in the diagram) is either securely connected to or hinged to the bottom wall of the inner container 100. The secure connection can be achieved using screws or other fasteners, while the hinged connection can be achieved using a pin. The other end of valve 310 (right end in the diagram) is a free end, capable of swinging up and down with the fixed end as a fulcrum. Thus, as... Figure 4 and Figure 5 As shown, when valve 310 swings downward and adheres to the bottom wall of the inner cavity, the liquid supply channel 110 is closed; Figure 2 and Figure 3As shown, when its free end is lifted upwards, the liquid supply channel 110 is opened. It should be understood that, because the valve plate made of silicone material itself has a certain elastic deformation capability, the valve 310 can also be opened under the action of external force in the fastened connection state.

[0035] Furthermore, to improve the stability and reset reliability of valve 310, a locking assembly is provided between valve 310 and the fixing structure of the liquid storage container. For example, a locking assembly is also provided between valve 310 and the bottom wall of the inner cavity, where the fixing structure of the liquid storage container is the bottom wall of the inner cavity. See [link to documentation] Figure 2 The locking assembly is preferably a magnetic assembly, comprising a first magnetic element 328 and a second magnetic element 325 that can attract each other. The first magnetic element 328 is embedded in the bottom of the inner container 100, and the second magnetic element 325 is correspondingly embedded in the free end of the valve 310. Both can be magnets, or one can be a magnet and the other can be a ferromagnetic material (such as an iron sheet). This magnetic structure can assist the valve 310 in quickly resetting and maintaining a stable closed state when the valve loses its external driving force, effectively preventing accidental opening due to liquid fluctuations or vibrations, and improving the reliability of the seal.

[0036] like Figure 2 As shown, the liquid level triggering mechanism 320 is disposed inside the outer cavity container 200 and is used to respond to changes in the liquid level in the outer cavity and drive the corresponding action of the valve 310. The mechanism mainly includes a fixing part 321, a triggering assembly, a float 324, and a steady-state maintenance assembly.

[0037] The fixing part 321 is fixedly installed in the outer cavity container 200, such as Figure 1 and Figure 2 As shown, in this embodiment, it is specifically represented by a fixed rod. This fixed rod stands vertically inside the outer cavity and is positioned adjacent to the inner cavity container 100, specifically near the liquid supply channel 110 and the valve 310, as shown below. Figure 1 The right side of the inner container 100 is shown. The fixed rod, as a fixed guide component of the entire mechanism, provides guidance for the lifting and lowering movement of the trigger assembly and the float 324, enabling it to accurately follow changes in liquid level.

[0038] Furthermore, in this embodiment, the fixing rod can be fixedly installed on the inner cavity container 100 by fasteners such as screws. This design allows the fixing rod to be removed together with the inner cavity container 100 during maintenance, facilitating overall cleaning or repair.

[0039] In this embodiment, the triggering component consists of an active trigger element 322 and a passive element 323. Wherein, as... Figure 2 and Figure 4As shown, the active trigger 322 is mounted on the fixed part 321 in a liftable manner. Specifically, the active trigger 322 can be designed as a cylindrical component coaxially sleeved outside the fixed rod, and can move vertically up and down along the fixed rod. The passive component 323 is fixedly installed on the valve 310.

[0040] In this embodiment, the active trigger 322 and the passive component 323 together constitute a pair of interacting components. They can interact in a non-contact manner (e.g., by magnetic attraction or repulsion). Through this cooperative relationship, when the active trigger 322 is driven to move up and down along the fixed rod, it can drive the passive component 323 to perform a corresponding action, thereby realizing the reliable opening or closing of the valve 310.

[0041] Specifically, in combination Figure 2 As shown, in this embodiment, the active trigger 322 and the passive component 323 can interact using a set of magnetic components. Specifically, the active trigger 322 is provided with a third magnetic component 3221, while the passive component 323 is a fourth magnetic component located at the free end of the valve 310, and the two can attract each other. It is worth noting that the valve 310 is already provided with a second magnetic component 325 for cooperating with the first magnetic component 328 to achieve reset. Here, the second magnetic component 325 can be directly used as the fourth magnetic component, thereby realizing that one magnetic component has two functions at the same time: participating in the reset and locking of the valve 310, and cooperating with the active trigger 322 to open the valve 310.

[0042] Furthermore, to achieve reliable valve 310 control, when the active trigger 322 is in the lower limit state, the magnetic attraction force of the third magnetic element 3221 on the second magnetic element 325 should be greater than the magnetic attraction force of the first magnetic element 328 on the second magnetic element 325. Thus, even when the valve 310 is in the closed and locked state, the third magnetic element 3221 can still overcome the holding force of the first magnetic element 328 and attract the second magnetic element 325 to open the valve 310. To achieve this magnetic force difference, when both the third magnetic element 3221 and the first magnetic element 328 are magnets, the third magnetic element 3221 can be made of a material with a higher magnetic energy product than the first magnetic element 328 to ensure it provides sufficient force; alternatively, the first magnetic element 328 can be made of iron, while the second magnetic element 325 and the third magnetic element 3221 are magnets, which also ensures a greater magnetic attraction force between the second magnetic element 325 and the third magnetic element 3221.

[0043] Furthermore, such as Figure 2As shown, the fixed rod is also provided with an upper limit part 3211 and a lower limit part 3212 to limit the lifting range of the active trigger 322. The upper limit part 3211 and the lower limit part 3212 can be specifically represented as an annular step structure protruding on the surface of the fixed rod, which is used to provide reliable mechanical limiting during the lifting process of the active trigger 322.

[0044] Furthermore, the arrangement positions of the upper limit portion 3211 and the lower limit portion 3212 in this embodiment also satisfy the following: See Figure 2 When the active trigger 322 descends to abut against the lower limit part 3212, the third magnetic attractor 3221 on it is exactly above the liquid supply channel 110, and the second magnetic attractor 325 is within the magnetic action range of the third magnetic attractor 3221. At this time, the third magnetic attractor 3221 generates a sufficiently large magnetic attraction force on the second magnetic attractor 325 on the valve 310. This force can overcome the magnetic attraction force between the first magnetic attractor 328 and the second magnetic attractor 325, the elastic restoring force of the valve 310 itself, and the multiple resistances such as the liquid static pressure, driving the valve 310 to lift upward, thereby opening the liquid supply channel 110.

[0045] See Figure 4 When the active trigger 322 rises to abut against the upper limit part 3211, the third magnetic suction member 3221 is raised to a higher position, and the distance between it and the second magnetic suction member 325 increases, so as to exceed the effective magnetic action range. At this time, the attraction of the third magnetic suction member 3221 is significantly weakened or even disappears. Under the combined action of the magnetic attraction force of the first magnetic suction member 328 and its own elastic restoring force, the valve 310 is reliably reset and the liquid supply channel 110 is resealed.

[0046] See Figure 2 In some embodiments, a limiting block 329 is also provided on the inner wall of the inner cavity container 100. This limiting block 329 is arranged within the trajectory range of the free end of the valve 310 swinging around its fixed end, and its horizontal position corresponds to the third magnetic suction element 3221 on the active trigger 322 when it is in the lower limit state. This design effectively limits the maximum lifting height of the free end of the valve 310 under magnetic attraction. When the free end of the valve 310 swings upward and contacts the limiting block 329, its further upward movement is prevented. This avoids excessive pulling on the free end of the valve 310 due to the active trigger 322 continuing to rise, preventing the valve 310 from swinging too much, thereby protecting its elastic material portion from tensile damage and extending the service life of the valve 310.

[0047] like Figure 2 and Figure 3As shown, in this embodiment, the float 324 is disposed on the active trigger 322 and can freely rise and fall along its outer surface as the liquid level changes. For example, the float 324 can be designed as a sleeve-shaped structure and coaxially sleeved on the outside of the active trigger 322, so that it can slide freely along its surface as the liquid level rises and falls.

[0048] In addition, to ensure that the float 324 can respond sensitively to changes in the liquid level in the outer cavity container 200, this embodiment preferably uses plastic or other low-density lightweight materials to manufacture the float 324, so as to provide sufficient buoyancy and reduce motion resistance.

[0049] See also Figure 2 In this embodiment, the active trigger 322 is provided with an upper trigger part 3222 and a lower trigger part 3223, and the rising and falling movement of the float 324 is restricted between these two parts. The interval between the upper trigger part 3222 and the lower trigger part 3223 constitutes the free movement stroke of the float 324. Within this stroke, the movement of the float 324 will not drive the active trigger 322, forming a hysteresis interval, thereby keeping the steady state of the active trigger 322 unaffected by small fluctuations in the liquid level. At the same time, the upper trigger part 3222 and the lower trigger part 3223 themselves also serve as key trigger points: when the liquid level rises, the float 324 rises until it comes into contact with the upper trigger part 3222, at which point the buoyancy is transmitted to the active trigger 322, driving it to rise; when the liquid level falls, the float 324 falls until it comes into contact with the lower trigger part 3223, at which point the float 324 exerts a downward force on the active trigger 322 through its own gravity, driving it to leave the high-level steady state.

[0050] Specifically, in combination Figure 2 and Figure 3 In this embodiment, the upper triggering part 3222 can be designed as an annular step structure located at the upper end of the active triggering member 322, and the lower triggering part 3223 is an annular step located at its lower end. The lower triggering part 3223 should be arranged adjacent to the bottom wall of the outer cavity container 200. Specifically, the lower limiting part 3212 of the fixing rod is located at the bottom of the outer cavity container 200, and when the active triggering member 322 abuts against the upper limiting part 3211, the lower triggering part 3223 is also located at the bottom of the liquid storage container, ensuring that the float 324 can descend to the bottom of the outer cavity with the liquid level. This positional design ensures that the float 324 only drives the active triggering member 322 to operate after the liquid in the outer cavity has been basically drained, thereby opening the valve 310 for liquid replenishment, achieving full and effective utilization of the liquid level in the outer cavity.

[0051] In this embodiment, the steady-state maintenance component is disposed between the active trigger 322 and the fixed part 321. Its function is to apply a holding force to the component when the active trigger 322 rises to the upper limit position, so that it is stably maintained at the high position, thereby realizing the step-like driving mechanism of "separation first and then linkage" between the float 324 and the active trigger 322.

[0052] Specifically, the steady-state maintenance component can be implemented using a magnetic structure, such as a fifth magnetic element 327 and a sixth magnetic element 326 that can attract each other. The fifth magnetic element 327 is mounted on the upper limit portion 3211 of the fixing portion 321, while the sixth magnetic element 326 is located at the upper end of the active trigger 322. It is worth noting that, to achieve structural simplification and functional integration, the original third magnetic element 3221 on the active trigger 322 can also be used as the sixth magnetic element 326. In this way, the third magnetic element 3221 can be used to attract the second magnetic element 325 on the valve 310 to open the liquid supply channel 110, and can also cooperate with the fifth magnetic element 327 to maintain the active trigger 322 in a stable state at a high position, achieving a multi-functional effect. With this configuration, when the active trigger 322 moves upward until its upper trigger part 3222 abuts against the upper limit part 3211 of the fixing rod, the sixth magnetic member 326 on the active trigger 322 can be magnetically attracted to the fifth magnetic member 327 on the fixing part 321, thereby making the active trigger 322 stably maintained at the high position.

[0053] Specifically, in this embodiment, the fifth magnetic attractor 327 can be a magnet or a ferromagnetic material (such as an iron sheet).

[0054] Furthermore, in this embodiment, the magnetic attraction between the fifth magnetic member 327 and the sixth magnetic member 326 also satisfies the following: when the active trigger 322 is in a high-level stable state, if the float 324 descends to abut against the lower trigger part 3223 and applies a downward thrust to it, this thrust should be able to overcome the magnetic holding force, driving the active trigger 322 to move downward, thereby releasing its high-level stable state. Specifically, in this embodiment, the magnetic force of the mutual attraction between the fifth magnetic member 327 and the sixth magnetic member 326 is greater than the weight of the active trigger 322 itself, and less than the sum of the weights of the float 324 and the active trigger 322. Thus, when the liquid level has not dropped to the low-level critical value, the high-level stable state of the active trigger 322 can be maintained by the fifth magnetic member 327 and the sixth magnetic member 326. When the liquid level drops to the low-level critical value, the float 324 can drive the active trigger 322 to break away from the high-level stable state and fall freely.

[0055] Accordingly, such as Figure 2 and Figure 3As shown, when the active trigger 322 descends to abut against the lower limit 3212 of the fixed part 321, it can be stably maintained at this position by its own weight, and remains in a low-level stable state when there is no external force. Only when the liquid level rises to the high-level critical value, the float 324 rises and finally applies sufficient upward thrust to the upper trigger 3222, so that the active trigger 322 can break away from the low-level stable state, move upward and switch to the high-level stable state.

[0056] The automatic liquid replenishing valve 300 provided in this embodiment of the utility model has the following usage states: In the first state, both the inner container 100 and the outer container 200 are empty. At this time, the float 324 is at its lower limit, i.e., the bottom of the outer container 200. The liquid supply channel 110 is open, and the active trigger 322 is in a low-position stable state. Figure 2 As shown.

[0057] In the second state, liquid is added to the inner container 100. The liquid added to the inner container 100 enters the outer container 200 through the liquid supply channel 110, causing the float 324 to gradually rise along the active trigger 322 (within its free movement stroke). The active trigger 322 is in a low-position stable state. When the liquid level in the outer container 200 is higher than the lower end of the upper trigger part 3222 of the active trigger 322, the float 324 rises to abut against the upper trigger part 3222. Figure 3 As shown; at this time, the float 324 applies an upward thrust to the upper trigger part 3222, which can drive the active trigger 322 to move upward until the active trigger 322 abuts against the upper limit part 3211 of the fixed rod, as shown. Figure 4 As shown; at this time, under the magnetic attraction of the fifth magnetic attractor 327 and the sixth magnetic attractor 326, the active trigger 322 maintains a high-level stable state, while the magnetic range of the third magnetic attractor 3221 disengages from the second magnetic attractor 325, and the valve 310 resets and closes the liquid supply channel 110 under the combined action of the magnetic attraction force of the first magnetic attractor 328 and its own elastic restoring force.

[0058] In the third state, the liquid in the outer cavity container 200 gradually decreases after use, but its level has not yet dropped below the lower trigger part 3223 of the active trigger 322, which is in a high-level stable state. At this time, the float 324 is still above the lower trigger part 3223 (within its free stroke), the valve 310 is still closed, and the active trigger 322 is still in a high-level stable state. Then, when the liquid level in the outer cavity container 200 drops below the lower trigger part 3223 of the active trigger 322, which is in a high-level stable state, the float 324 falls to abut against the lower trigger part 3223, as... Figure 5As shown. At this time, the float 324 exerts a downward force on the active trigger 322 by its own weight, overcoming the magnetic attraction of the fifth magnetic element 327 and the sixth magnetic element 326, causing the active trigger 322 to fall freely from the high-position steady state until its lower end abuts against the lower limit part 3212 of the fixed rod, and maintains a low-position steady state based on its own weight, as shown. Figure 1 As shown. At this time, the third magnetic attractor 3221 applies a magnetic force to the second magnetic attractor 325, causing the free end of the valve 310 to lift upwards, thereby opening the liquid supply channel 110. The liquid in the inner container 100 is then supplied to the outer container 200 through the liquid supply channel 110. When the liquid level in the outer container 200 rises, the valve 310 and the liquid level triggering mechanism 320 will repeat the actions in the second state.

[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] It should be noted that the illustrations provided in this embodiment are merely schematic representations of the basic concept of this utility model. The structures, proportions, sizes, etc., depicted in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and to enable them to understand and read the content disclosed herein. They are not intended to limit the implementation conditions of this utility model. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed herein.

[0061] The orientations or positional relationships indicated by terms such as "upper," "lower," "left," "right," "middle," "longitudinal," "transverse," "horizontal," "inner," "outer," "radial," and "circumferential" used in this specification are based on the orientations or positional relationships shown in the accompanying drawings and are only for the purpose of simplifying the description. They 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, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0062] The above embodiments merely illustrate several implementation methods of this application, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An automatic replenishing valve (300) for a liquid storage container, the liquid storage container including a liquid supply channel (110), characterized in that, The automatic replenishing valve (300) includes: A valve (310) is movably disposed in the liquid storage container for closing or opening the liquid supply channel (110). The liquid level triggering mechanism (320) includes: The fixing part (321) is fixed in the liquid storage container and is provided with an upper limit part (3211) and a lower limit part (3212). The triggering assembly includes an active trigger (322) that is vertically and vertically disposed on the fixed part (321) and a passive member (323) disposed on the valve (310). The passive member (323) is configured to: open the valve (310) when the active trigger (322) abuts against the lower limit part (3212), and disengage from its range of action when the active trigger (322) abuts against the upper limit part (3211). A float (324) is vertically mounted on the active trigger (322), which is provided with an upper trigger part (3222) and a lower trigger part (3223). The vertical range of the float (324) is limited between the upper trigger part (3222) and the lower trigger part (3223). A steady-state maintenance component, disposed between the active trigger (322) and the fixed part (321), is configured to apply a holding force to the active trigger (322) when it is in the upper limit position, and to release the holding force when the float (324) applies a downward thrust to the lower trigger (3223).

2. The automatic replenishing valve (300) according to claim 1, characterized in that, The valve (310) is disposed in the liquid storage container in a way that allows it to swing up and down, and the swing range of the valve (310) covers the liquid supply channel (110).

3. The automatic replenishing valve (300) according to claim 2, characterized in that, A locking component is provided between the valve (310) and the fixing structure of the liquid storage container; The locking assembly includes a first magnetic element (328) and a second magnetic element (325) that can magnetically attract each other. The first magnetic element (328) is disposed on the fixed structure of the liquid storage container, and the second magnetic element (325) is disposed on the valve (310). When the first magnetic element (328) and the second magnetic element (325) attract each other, the valve (310) closes the liquid supply channel (110).

4. The automatic replenishing valve (300) according to claim 3, characterized in that, The active trigger (322) is provided with a third magnetic attractor (3221), and the passive member (323) includes a fourth magnetic attractor disposed on the valve (310). The fourth magnetic attractor and the second magnetic attractor (325) are the same component. When the active trigger (322) is in the lower limit position, the third magnetic attractor (3221) is located above the liquid supply channel (110), and the second magnetic attractor (325) is located within the magnetic action range of the third magnetic attractor (3221). The magnetic attraction force of the third magnetic attractor (3221) on the second magnetic attractor (325) is greater than the magnetic attraction force between the first magnetic attractor (328) and the second magnetic attractor (325).

5. The automatic replenishing valve (300) according to claim 4, characterized in that, A limiting block (329) is also fixedly installed inside the liquid storage container. The limiting block (329) is arranged within the trajectory range of the free end of the valve (310) swinging around its connection end, and its horizontal position corresponds to the third magnetic suction element (3221) on the active trigger (322) in the lower limit state.

6. The automatic replenishing valve (300) according to claim 5, characterized in that, The steady-state maintenance component includes a fifth magnetic member (327) and a sixth magnetic member (326). The fifth magnetic member (327) is mounted on the upper limit portion (3211) of the fixing portion (321), and the sixth magnetic member (326) is disposed at the upper end of the active trigger member (322). The magnetic force of the fifth magnetic attractor (327) and the sixth magnetic attractor (326) is greater than the weight of the active trigger (322) itself, and less than the sum of the weights of the float (324) and the active trigger (322).

7. The automatic replenishing valve (300) according to claim 6, characterized in that, The third magnetic accumulator (3221) and the sixth magnetic accumulator (326) are the same component.

8. The automatic replenishing valve (300) according to claim 1, characterized in that, The lower limiting part (3212) is located at the bottom of the liquid storage container; When the active trigger (322) abuts against the upper limit part (3211), the lower trigger part (3223) is located at the bottom of the liquid storage container.

9. The automatic replenishing valve (300) according to claim 1, characterized in that, The fixing part (321) is a fixing rod that is fixed in the liquid storage container in the vertical direction; The active trigger (322) is a cylindrical structure that can be lifted and sleeved on the fixed rod; The float (324) is a sleeve-shaped structure that can be raised and lowered and sleeved on the active trigger (322).

10. A liquid storage container, characterized in that, It includes an inner cavity container (100), an outer cavity container (200), and an automatic replenishing valve (300) as described in any one of claims 1-9; The inner cavity container (100) is built into the outer cavity container (200). The bottom of the inner cavity container (100) is provided with a liquid supply channel (110) that communicates with the outer cavity container (200). The automatic replenishment valve (300) is used to control the opening and closing of the liquid supply channel (110) based on the liquid level of the outer cavity container (200).

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