CN114158911A

CN114158911A - Water dispenser water tank and water dispenser

Info

Publication number: CN114158911A
Application number: CN202110427189.2A
Authority: CN
Inventors: 周中文; 冯崎源
Original assignee: Foshan Midea Qinghu Water Purification Equipment Co ltd; Midea Group Co Ltd
Current assignee: Foshan Midea Qinghu Water Purification Equipment Co ltd; Midea Group Co Ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2022-03-11

Abstract

The invention discloses a water dispenser water tank and a water dispenser. The water storage channel is provided with a water storage inlet communicated with a water supply source and a water storage outlet communicated with the water storage cavity and higher than the water storage inlet; the first ball float valve is arranged on the tank body and is connected with the water storage inlet so as to close the water storage inlet when the water level of the tank body is equal to or higher than a first upper limit water level; the second ball float valve is mounted on the tank body, connected with the water storage outlet, and used for closing the water storage outlet when the water level of the tank body is equal to or higher than a second upper limit water level, which is higher than the first upper limit water level. The invention provides a novel water inlet mode of a water dispenser water tank, which aims to reduce the overflow of the water dispenser water tank.

Description

Water dispenser water tank and water dispenser

Technical Field

The invention relates to the technical field of manufacturing of drinking equipment, in particular to a water tank of a water dispenser and the water dispenser.

Background

The traditional water dispenser comprises a water tank of the water dispenser, an instant heating device and a water outlet device which are connected in sequence. The water inlet procedure of the water tank of the water dispenser is usually realized by combining a controller, a water inlet electromagnetic valve and a water level detector. Wherein, the water inlet electromagnetic valve is arranged on a water inlet pipeline of the water tank of the water dispenser; the water level detector is arranged in the water tank of the water dispenser and is used for detecting the upper limit water level of the water dispenser. In the water inlet process of the water tank of the water dispenser, the water inlet electromagnetic valve is in an initial state; when the water level detector detects that the water level in the water tank of the water dispenser reaches the upper limit water level, the water level detector feeds a detection signal back to the controller, and then the controller controls the water inlet electromagnetic valve to be switched to a closed state, so that the water tank of the water dispenser stops water inlet. However, the electric control mode depends on that each electric control component must work normally, and if any one of the components fails (for example, the water inlet electromagnetic valve is blocked by foreign matters, the water level detector fails, the circuit is in poor contact, the power is cut off and the like), the water inlet program is difficult to close, so that the water tank of the water dispenser is easy to overflow, bad experience is brought to users, and even the users can soak water at home in serious cases.

Disclosure of Invention

The invention mainly aims to provide a water tank of a water dispenser, and aims to provide a novel water inlet mode of the water tank of the water dispenser so as to reduce the overflow of the water tank of the water dispenser.

In order to achieve the purpose, the invention provides a water tank of a water dispenser, which comprises a tank body, a first ball float valve and a second ball float valve. The water storage channel is provided with a water storage inlet communicated with a water supply source and a water storage outlet communicated with the water storage cavity and higher than the water storage inlet; the first ball float valve is arranged on the tank body and is connected with the water storage inlet so as to close the water storage inlet when the water level of the tank body is equal to or higher than a first upper limit water level; the second ball float valve is mounted on the tank body, connected with the water storage outlet, and used for closing the water storage outlet when the water level of the tank body is equal to or higher than a second upper limit water level, which is higher than the first upper limit water level.

Optionally, the water storage inlet is located outside the tank; the first float valve comprises a first float ball and a switch valve body; the first floating ball is arranged in the box body; the switch valve body is arranged on the outer side of the box body and used for connecting the water storage inlet and a water supply source, the switch valve body is in linkage with the first floating ball, and the switch valve body is in an initial state of being kept open and is switched to a closed state of being closed after the first floating ball floats.

Optionally, the switch valve body comprises a valve seat and a valve core; wherein the valve seat is provided with a communication port for communicating the water storage inlet with a water supply source; the valve core is movably embedded in the valve seat along the vertical direction, is arranged opposite to the communication port and is linked with the first floating ball;

when the switch valve body is in an initial state, the valve core opens the communication port;

and when the switch valve body is in a closed state, the valve core closes the communication port.

Optionally, the first float valve further comprises a magnetic member, the magnetic member being fixed within the first float valve; when the switch valve body is in an initial state, the magnetic part and the valve core are magnetically adsorbed, so that the valve core moves upwards to open the communication port; when the switch valve body is in a closed state, the magnetic part is separated from the valve core, so that the valve core falls back downwards to seal the communicating port.

Optionally, the valve seat is provided with a mounting column, and the mounting column penetrates through the box body and extends into the water storage cavity so as to allow the first floating ball to be movably sleeved; and a valve cavity which is opened towards the communication port is arranged in the mounting column and is used for movably mounting the valve core.

Optionally, the first floating ball includes a floating ball shell and a guiding sleeve configured in the floating ball shell, and the guiding sleeve is movably sleeved on the mounting post.

Optionally, the bottom wall of the floating ball shell is provided with an annular groove around the socket of the guide sleeve; the magnetic piece is arranged in an annular shape and embedded in the annular groove.

Optionally, the first ball float valve further comprises a reset piece arranged in the valve cavity of the mounting column, one end of the reset piece is connected with the upper end of the mounting column, and the other end of the reset piece is connected with the upper end of the valve core.

Optionally, the bottom of box is equipped with the confession the first installing port that the erection column passed, the interior inlays of first installing port and is equipped with first sealing washer, first sealing washer snare in the periphery of erection column.

Optionally, the valve seat is further provided with a water inlet interface and a water outlet interface; wherein the water inlet interface is suitable for communicating the communication port with a water supply source; the water outlet interface is suitable for communicating the communication port with the water storage inlet.

Optionally, the water storage outlet is located inside the tank; the second ball float valve comprises a connecting rod, a second ball float and a piston head; one end of the connecting rod is rotatably connected with the box body; the second floating ball is connected with the other end of the connecting rod; the piston head is arranged on the connecting rod and used for blocking the water storage outlet.

Optionally, the second ball float valve further comprises a valve support, the valve support is fixed on the box body, and the valve support is rotatably connected with the connecting rod; the valve support is provided with a piston socket for movably inserting the piston head and a pipe socket communicated with the piston socket for inserting the water storage outlet.

Optionally, a second mounting opening for mounting the valve support is formed in the top wall of the box body, a second sealing ring is embedded in the second mounting opening, and the second sealing ring is annularly sleeved on the periphery of the valve support.

Optionally, the water storage flow channel comprises a water inlet section vertically penetrating through the tank body, a middle section transversely extending from the top of the water inlet section, and a water outlet section downwardly extending from the middle section; wherein the lower end of the water inlet section forms the water storage inlet; the lower end of the water outlet section forms the water storage outlet.

The invention also provides a water dispenser which is characterized by comprising an instant heating device, a water outlet device and a water dispenser water tank, wherein a first ball float valve of the water dispenser water tank is communicated with a water inlet pipeline, and a water storage cavity of the water dispenser water tank is connected with the instant heating device and the water outlet device through a water outlet pipeline. The water tank of the water dispenser comprises a tank body, a first ball float valve and a second ball float valve. The water storage channel is provided with a water storage inlet communicated with a water supply source and a water storage outlet communicated with the water storage cavity and higher than the water storage inlet; the first ball float valve is arranged on the tank body and is connected with the water storage inlet so as to close the water storage inlet when the water level of the tank body is equal to or higher than a first upper limit water level; the second ball float valve is mounted on the tank body, connected with the water storage outlet, and used for closing the water storage outlet when the water level of the tank body is equal to or higher than a second upper limit water level, which is higher than the first upper limit water level.

According to the technical scheme, a first ball float valve and a second ball float valve are arranged on a box body of a water tank of the water dispenser; wherein the first ball float valve is used for closing the water storage inlet when the water level of the tank body is equal to or higher than a first upper limit water level; the second ball float valve is suitable for closing the water storage outlet when the water level of the box body is equal to or higher than a second upper limit water level which is higher than the first upper limit water level, so that after the water level of the water dispenser water tank reaches the first upper limit water level, the water storage inlet is firstly closed by the first ball float valve to form a first overflow prevention mechanism. And if the first ball float valve fails to close in time due to faults, the water storage outlet is closed by the second ball float valve, so that a second overflow prevention mechanism is formed, the overflow condition of the water tank of the water dispenser is effectively reduced, the working performance of the water tank of the water dispenser is greatly improved, and better use experience is brought to users. Because first ball-cock assembly and second ball-cock assembly all are non-automatically controlled parts, need not the power supply can be under the buoyancy effect automatic switch-over state, just also can not be because of automatically controlled parts break down (for example the electromagnetic valve of intaking is dead by the foreign matter card, the condition such as water level detector inefficacy, circuit contact failure, outage) and lead to the condition that the water program can't be closed to appear, and then effectively reduce the water dispenser water tank overflow condition and take place.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic view of the working principle of a conventional water dispenser;

FIG. 2 is a schematic view of the working principle of the water dispenser of the present invention;

FIG. 3 is a schematic structural diagram of a water tank of a water dispenser according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of the water tank of the water dispenser of the present invention when water is fed;

FIG. 5 is a schematic structural view of the water dispenser of FIG. 4 when water is stopped entering the water tank;

FIG. 6 is a schematic structural diagram of a tank body of a water tank of a water dispenser of the present invention;

FIG. 7 is a schematic view of the first float valve of the present invention in an open position;

FIG. 8 is a schematic view of the first float valve of FIG. 7 switched to a closed position;

FIG. 9 is a schematic structural view of the first float ball shown in FIG. 7;

FIG. 10 is a schematic view of the second float valve of the present invention in an open position;

FIG. 11 is a schematic view of the second float valve of FIG. 10 switched to a closed position;

fig. 12 is a schematic structural view of an embodiment of the water dispenser of the present invention.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1, a conventional water dispenser includes a water tank 10 of the water dispenser, an instant heating device 20 and a water outlet device 30, which are connected in sequence. The water inlet procedure of the water tank of the water dispenser is generally realized by combining a controller, a water inlet electromagnetic valve 400 and a water level detector 300. Wherein, the water inlet electromagnetic valve 400 is configured on the water inlet pipeline of the water tank 10 of the water dispenser; the water level detector 300 is disposed in the water tank 10 of the water dispenser to detect the upper limit water level of the water dispenser. In the process of water inlet of the water tank of the water dispenser, the water inlet electromagnetic valve 400 is in an initial state; the water level in the water tank 10 of the water dispenser gradually rises, when the water level detector 300 detects that the water level in the water tank 10 of the water dispenser reaches the upper limit water level, the water level detector 300 feeds back a detection signal to the controller, and then the controller controls the water inlet electromagnetic valve 400 to be switched to a closed state, so that the water tank 10 of the water dispenser stops water inlet. However, the electric control mode depends on that all the electric control components need to work normally, and if any one of the components fails (for example, the water inlet electromagnetic valve 400 is stuck by foreign matters, the water level detector 300 fails, the circuit is in poor contact, the power is cut off and the like), the water inlet program is difficult to close, so that the water dispenser tank 10 is easy to overflow, bad experience is brought to users, and even the users can soak water at home in serious cases.

In view of this, the present invention provides an embodiment of a water dispenser tank that may be used in a water dispenser or other device having a water supply system. The water tank of the water dispenser adopts a new water inlet mode to reduce the overflow of the water tank of the water dispenser, improve the working performance of the water tank of the water dispenser and further bring better use experience for users.

Referring to fig. 2 to 4, in an embodiment of the water tank of the water dispenser of the present invention, the water tank 10 of the water dispenser includes a tank body 100, a first ball float 200 and a second ball float 300. The case 100 is provided with a water storage chamber 110 and a water storage flow passage 120, the water storage flow passage 120 having a water storage inlet 12a and a water storage outlet 12b, the water storage outlet 12b being higher than the water storage inlet 12 a. The first ball float valve 200 is installed on the tank 100, and the first ball float valve 200 is connected to the water storage inlet 12a for closing the water storage inlet 12a when the water level of the tank 100 is equal to or higher than a first upper limit water level. The second ball float valve 300 is installed on the tank 100, and the second ball float valve 300 is connected to the water storage outlet 12b for closing the water storage outlet 12b when the water level of the tank 100 is equal to or higher than a second upper limit water level higher than the first upper limit water level.

As shown in fig. 4, L in fig. 4₁Expressed as a lower limit water level of the tank 100; l is₂A first upper limit water level indicated as the tank 100; l is₃Indicated as a first upper limit water level of the tank 100. When the water level of the tank 100 is lower than a first upper limit water level, the first ball float valve 200 and the second ball float valve 300 are both in an initial state (as shown in fig. 4); the first ball float 200 connects the water storage inlet 12a and the water supply source, and the water from the water supply source enters the water storage channel 120 through the water storage inlet 12a and is discharged into the water storage chamber 110 of the water dispenser tank 10 from the water storage outlet 12b of the water storage channel 120. Then, the water level in the water tank 10 of the water dispenser gradually rises, and when the water level in the water tank 10 of the water dispenser rises to the first upper limit water level, the first ball float valve 200 is switched from the initial state to the closed state (as shown in fig. 5), so that the water storage inlet 12a of the water storage flow passage 120 is closed, and the water supply to the water tank 10 is stopped.

In the above water inlet process, if the first ball float valve 200 fails to be switched to the closed state in time when the water level in the water tank 10 of the water dispenser rises to the first upper limit water level, the water storage flow passage 120 still stores water into the water tank 10 of the water dispenser, and the water level in the water tank 10 of the water dispenser continues to rise. When the water level in the water tank 10 of the water dispenser rises to the second upper limit water level, the second ball float valve 300 is switched from the initial state to the closed state (as shown in fig. 5), so that the water storage outlet 12b of the water storage flow passage 120 is closed, and the water supply of the water tank 10 is stopped.

For the first and

second ball valves

200 and 300, the first and

second ball valves

200 and 300 are switched by the buoyancy change of the water in the water tank 10 of the water dispenser. Either one of the first and

second ball valves

200 and 300 may be a ball float type level switch or a mechanical ball float type level switch. Wherein, the mechanical liquid level switch water storage outlet 12b is taken as an example, a floating ball of the mechanical liquid level switch floats on the water surface, when the water level rises, the floating ball rises and drives the connecting rod 310 to swing upwards, and when the connecting rod 310 swings to a piston supported by the connecting rod to block the water storage outlet 12b, the water storage outlet 12b is closed; on the contrary, when the water level drops, the floating ball sinks and drives the connecting rod 310 to swing downwards until the piston on the connecting rod 310 leaves the water storage outlet 12b, so that the water storage outlet 12b is opened. The float ball type liquid level switch operates by using magnetic force, and when a float ball of the float ball type liquid level switch is not floated, the float ball magnetically adsorbs a valve core 230 of a switch valve body, so that the switch valve body opens the water storage outlet 12 b; when the water level rises, the floating ball floats up to weaken or even cancel the magnetic force between the floating ball and the valve core 230, and the valve core 230 of the switch valve body freely falls to a position closing the water storage outlet 12b, thereby closing the water storage outlet 12 b.

It should be noted that the first upper limit water level and the second upper limit water level are references set for comparing the first floating ball valve 200 and the second floating ball valve 300 to be switched to the closed state, and in practical applications, the first upper limit water level and the second upper limit water level should be reasonably designed according to the capacity of the water dispenser tank 10, and then the sizes of the floating balls of the first floating ball valve 200 and the second floating ball valve 300 should be reasonably configured according to the first upper limit water level and the second upper limit water level. Taking the first upper water level limit as an example, the first upper water level limit corresponds to a water level at which the buoyancy generated by the water in the water tank 10 of the water dispenser is enough to drive the float of the first ball float valve 200 to float. Similarly, the second upper limit water level corresponds to a water level at which the buoyancy generated by the water in the water tank 10 of the water dispenser is sufficient to drive the floating ball of the second ball valve 300 to float.

According to the technical scheme, a first ball float valve 200 and a second ball float valve 300 are arranged on a box body 100 of a water tank 10 of a water dispenser; wherein the first ball float valve 200 is used for closing the water storage inlet 12a when the water level of the tank 100 is equal to or higher than a first upper limit water level; the second ball float valve 300 is adapted to close the water storage outlet 12b when the water level of the tank 100 is equal to or higher than a second upper water level, which is higher than the first upper water level, so that the water storage inlet 12a is first closed by the first ball float valve 200 after the water level of the water dispenser tank 10 reaches the first upper water level, to form a first re-overfill prevention mechanism. If the first ball float valve 200 fails to close in time, the second ball float valve 300 closes the water storage outlet 12b, so as to form a second overflow prevention mechanism, thereby effectively reducing the overflow of the water dispenser tank 10, greatly improving the working performance of the water dispenser tank 10, and further bringing better use experience for users. Because the first ball float valve 200 and the second ball float valve 300 are non-electric control components, the states can be automatically switched under the action of buoyancy without power supply, the situation that the water inlet program cannot be closed due to the failure of the electric control components (for example, the water inlet electromagnetic valve is blocked by foreign matters, the water level detector is invalid, the circuit is in poor contact, the power is cut off and the like) can be avoided, and the overflow situation of the water tank 10 of the water dispenser can be effectively reduced.

Referring to fig. 4, 6 and 7, in one embodiment, the water storage inlet 12a of the water storage channel 120 is located at the outer side of the box 100. To ensure that the first float valve 200 can control the on-off state of the first float valve 200 using the water level buoyancy within the tank 100, optionally, the first float valve 200 is configured as a float level switch. Specifically, the first float valve 200 comprises a first float 210 and a switch valve body (220-280); the first floating ball 210 is arranged in the box body 100; the switch valve body is provided at the outside of the case 100 for connecting the water storage inlet 12a and the water supply source. The switch valve body is linked with the first floating ball 210, and the switch valve body has an initial state of being kept open and a closed state of being switched to be closed after the first floating ball 210 floats.

Specifically, the bottom of the tank body 100 of the water tank 10 of the water dispenser is provided with a first mounting opening 111; one of the first float ball 210 and the switch valve body passes through the first mounting hole 111 and is linked with the other, so that the first float ball 210 can move up and down relative to the tank 100 under the action of buoyancy, and the on-off state of the switch valve body, that is, the on-off state of the first float ball 200, is adjusted through the movement of the first float ball 210.

When the water level in the tank 100 is low (if the water level is lower than the lower limit water level, which is lower than the first upper limit water level), the buoyancy applied to the first floating ball 210 is small, the first floating ball 210 does not float, and the switch valve body is in an initial state, that is, the switch valve body is kept open; at this time, the switch valve body communicates the water storage inlet 12a of the water storage flow passage 120 with the water supply source so that water of the water supply source can pass through the switch valve body and enter the water storage flow passage 120. As the water level in the tank 100 rises, the buoyancy applied to the first float 210 increases; when the water level rises to the first upper limit level, the first floating ball 210 is floated by the buoyancy sufficient to float the first floating ball 210, so that the first floating ball 210 floats, and the switch valve body is switched to the closed state in a linkage manner, and at this time, the water storage inlet 12a of the water storage flow passage 120 is not communicated with the water supply source, so that the water storage inlet 12a is closed.

Referring to fig. 4, 6 and 7, the specific structure of the switch valve body can be designed in various ways. In one embodiment, the switch valve body comprises a valve seat 220 and a valve core 230; the valve seat 220 is provided with a communication port 221 for communicating the water storage inlet 12a with a water supply source; the valve element 230 is movably embedded in the valve seat 220 in the up-down direction, and the valve element 230 is disposed opposite to the communication port 221 and is linked with the first floating ball 210. In the initial state of the switch valve body, the valve core 230 opens the communication port 221 (as shown in fig. 7); in the closed state of the switch valve body, the valve body 230 closes the communication port 221 (as shown in fig. 8).

Specifically, the valve seat 220 is further provided with a communication chamber 226, and a communication port 221 is formed on the inner wall of the communication chamber 226; the valve seat 220 is further provided with a water inlet interface 222 and a water outlet interface 223 which are communicated with the communication port 221; wherein the water inlet interface 222 is adapted to communicate with the water supply source; the water outlet port 223 communicates with the water storage inlet 12a of the water storage flow passage 120. The valve body 230 is interlocked with the first ball float 210 so that the valve body 230 can move in the communication chamber 226 to open and close the communication port 221. The valve core 230 is linked with the first floating ball 210, and it can be understood that the valve core 230 and the first floating ball 210 move simultaneously, specifically, move in the same direction simultaneously, or move in opposite directions simultaneously, and specifically, the valve core 230 and the communication port 221 can be designed correspondingly according to the relative position of the valve core 230 and the communication port. For example, when the communication port 221 is located below the valve body 230, the valve body 230 should be interlocked downward to close the communication port 221 when the first float 210 is lifted upward. For another example, when the communication port 221 is located above the valve body 230, the valve body 230 should be interlocked upward to close the communication port 221 when the first float 210 is lifted upward.

As for the specific arrangement manner of the valve core 230 and the first floating ball 210 in linkage, the valve core 230 and the first floating ball 210 may be magnetically connected to increase the distance between the remaining valve cores 230 after the first floating ball 210 floats, so that the magnetic attraction is weakened, and the valve core 230 falls back downward under the action of gravity, so that the switch valve body is switched from the initial state to the closed state; for another example, the valve element 230 is fixedly connected to the first floating ball 210, such that the valve element 230 can move upward along with the first floating ball 210, and the switch valve body is switched from the initial state to the closed state. The selection can be made according to the relative positions of the communication port 221 and the valve core 230 described above.

Referring to fig. 7 to 9, in an embodiment, the communication port 221 is located below the valve element 230, and the valve element 230 is magnetically connected to the first float 210. Specifically, the first float valve 200 further includes a magnetic member 240, and the magnetic member 240 is fixed to the bottom of the first float valve 200; in the initial state of the switching valve body, the magnetic member 240 and the valve element 230 are magnetically attracted, so that the valve element 230 moves upward to open the communication port 221; when the switch valve body is in a closed state, the magnetic member 240 is separated from the valve element 230, so that the valve element 230 falls back downward to close the communication port 221.

Specifically, the valve element 230 of the switch valve body is made of a metal material capable of being magnetically attracted to the magnetic member 240, such as a metal material (e.g., iron and its alloy, cobalt and its alloy, nickel and its alloy, etc.). When the water level in the tank 100 does not reach the first upper limit water level, that is, the water level in the tank 100 is lower than the first upper limit water level, the first float 210 does not float, the magnetic member 240 at the bottom of the first float 210 magnetically attracts the valve element 230, so that the valve element 230 moves upward above the communication port 221, and the valve element 230 opens the communication port 221, so that the switch valve body is maintained in the initial state.

When the water level in the tank 100 rises to the first upper limit water level, that is, the water level in the tank 100 is equal to or higher than the first upper limit water level, the first floating ball 210 floats upwards against the magnetic attraction between the magnetic member 240 and the valve element 230, and the distance between the magnetic member 240 and the valve element 230 gradually increases, so that the magnetic attraction of the magnetic member 240 to the valve element 230 is weakened and cancelled, until the magnetic attraction is smaller than the gravity of the valve element 230, the valve element 230 falls back to the communication port 221 under the action of the gravity of the valve element, and the communication port 221 is blocked, so that the switch valve body is switched to the closed state.

Further, in order to facilitate the magnetic attraction between the valve element 230 and the magnetic element 240 on the first floating ball 210, optionally, a mounting post 224 is disposed on the top of the valve seat 220, and the mounting post 224 passes through the tank 100 and extends into the water storage cavity 110, so that the first floating ball 210 can be movably sleeved; a valve cavity 225 which is opened towards the communication port 221 is arranged inside the mounting column 224, and the valve cavity 225 is used for movably mounting the valve core 230.

Specifically, the bottom of the box 100 is provided with a first mounting opening 111 for the mounting post 224 to pass through; a first sealing ring 280 is embedded in the first mounting opening 111; the valve seat 220 is fixed on the bottom surface of the tank 100, the mounting post 224 of the valve seat 220 passes through the first mounting opening 111 at the bottom of the tank 100 and extends into the water storage chamber 110 of the tank 100, and the first sealing ring 280 at the first mounting opening 111 is sleeved on the periphery of the mounting post. When the valve seat 220 is installed, the first sealing ring 280 is sleeved on the periphery of the mounting post 224 of the valve seat 220, and then the mounting post 224 passes through the first mounting opening 111, so that the first sealing ring 280 is inserted into the first mounting opening 111 along with the mounting post 224 to seal the gap between the first sealing ring and the mounting post 224. And finally, connecting and fixing the valve seat 220 with the bottom wall of the box body 100.

The first floating ball 210 is movably sleeved on the mounting post 224 along the up-down direction, so that the first floating ball 210 can move along the mounting post 224 along the up-down direction when the buoyancy changes. By movably mounting the spool 230 in the valve cavity 225 of the mounting post 224, the spool 230 is brought into relatively close proximity to the magnetic member 240 on the first float 210, thereby facilitating a magnetic connection with the magnetic member 240. In addition, an annular support 113 (as shown in fig. 4 and 6) is further protruded from an inner surface of the bottom wall of the box 100, and the annular support 113 is adapted to support the first float 210, so that the first float 210 is spaced apart from the bottom wall of the box 100 when not floating (i.e. at an initial position), thereby avoiding a situation that the first float 210 and the bottom wall of the box 100 are tightly attached under negative pressure and are difficult to float.

Further, the first floating ball 210 includes a floating ball shell 211 and a guiding sleeve 212 configured in the floating ball shell 211, the guiding sleeve 212 is provided with a sleeve opening 213 opened downwards, and the guiding sleeve 212 is movably sleeved on the mounting post 224 through the sleeve opening 213.

Specifically, the ball housing 211 of the first ball 210 may be disposed in a square or circular shape, but is not limited thereto. Since the first floating ball 210 is movably sleeved on the mounting post 224 through the guiding sleeve 212, so that the first floating ball 210 is limited on the mounting post 224, the first floating ball 210 can float up and down along the mounting post 224, and is not easy to drift.

It should be noted that, in the initial state of the switch valve body, the depth of the guiding sleeve 212 sleeved on the mounting post 224 is preferably greater than the maximum upward floating stroke of the first floating ball 210, so as to ensure that the first floating ball 210 still remains sleeved on the mounting post 224 after the switch valve body is switched to the closed state, thereby avoiding the first floating ball 210 from separating from the mounting post 224 and drifting freely, and reducing the situation that the first floating ball is difficult to be sleeved on the mounting post 224 again after the subsequent water level is reduced.

Referring to fig. 7 to 9, in an embodiment, the magnetic element 240 may be fixed on the bottom wall or the side wall of the floating ball shell 211, and only the magnetic element 240 is required to be magnetically attracted to the valve element 230 of the switch valve body. Optionally, the bottom wall of the buoyant spherical shell 211 is provided with an annular groove 214 around the outer periphery of the guide sleeve 212; the magnetic member 240 is disposed in a ring shape and embedded in the ring-shaped groove 214.

Specifically, since the guiding sleeve 212 is sleeved on the mounting post 224 of the switch valve body, and the annular groove 214 surrounds the outer periphery of the guiding sleeve 212, after the magnetic member 240 is embedded in the annular groove 214, the magnetic member 240 also surrounds the outer periphery of the mounting post 224, that is, the outer periphery of the valve core 230 in the mounting post 224, so as to obtain a large connecting surface magnetically connected with the valve core 230, so that when the first floating ball 210 is not floated, the magnetic member 240 can strongly attract the valve core 230 upwards, thereby ensuring that the switch valve body is kept in the initial state. Furthermore, the magnetic member 240 is embedded in the annular groove 214, so that the movement of the magnetic member 240 can be limited, and the magnetic member 240 is prevented from shifting due to shaking in the floating process of the first floating ball 210.

Referring to fig. 7 to 9, in an embodiment, the first float valve 200 further includes a reset member 250, the reset member 250 is disposed in the valve cavity 225 of the mounting post 224, one end of the reset member 250 is connected to the upper end of the mounting post 224, and the other end of the reset member 250 is connected to the upper end of the valve core 230. The reset member 250 may be a spring, a spring plate, or other elastic structure capable of restoring elastic deformation.

In the initial state of the switching valve body, the valve core 230 is attracted by the magnetic member 240 to press the reset member 250 upwards, so that the reset member 250 accumulates elastic potential energy, and the reset member 250 has a tendency of driving the valve core 230 to fall back downwards. After the first floating ball 210 floats, the distance between the magnetic member 240 and the valve element 230 gradually increases, so that the magnetic attraction of the magnetic member 240 to the valve element 230 is weakened and cancelled until the magnetic attraction is smaller than the gravity of the valve element 230, and the valve element 230 falls back to the communication port 221 to block the communication port 221 under the dual actions of the gravity of the valve element and the elastic force released by the resetting member 250, so that the switch valve body is switched to the closed state quickly. At this time, the reset tool 250 presses the valve body 230 against the communication port 221, thereby ensuring that the valve body 230 tightly closes the communication port 221 and improving the sealing property after the communication port 221 is closed.

Further, the valve seat 220 is further provided with a communication chamber 226 for communicating the communication port 221 with the water storage inlet 12 a; the first ball float valve 200 further comprises a sealing gasket 270 arranged at the bottom of the communicating cavity 226, and a communicating port 221 communicated with the water inlet port 222 and a through hole communicated with the water outlet port 223 are formed in the sealing gasket 270. The first ball cock 200 further includes an elastic member 260 in the communication chamber 226, wherein one end of the elastic member 260 is connected to a top wall of the communication chamber 226, and the other end of the elastic member 260 is connected to the gasket, so that the gasket 270 is stably mounted at the bottom of the communication chamber 221 by the elasticity of the elastic member 260, and the gasket 270 is prevented from being flushed open due to the fact that the speed of water flowing through the communication chamber 221 is too high after the communication chamber 221 is opened. The elastic member 260 may be a spring, a spring plate, or other elastic structure capable of restoring elastic deformation.

Referring to fig. 7 to 9, in an embodiment, a plug 231 is further protruded from a lower end of the valve element 230 of the switch valve, and the plug 231 is used for plugging the communication opening 221. In order to improve the sealing performance of the plug 231 for plugging the communication port 221, optionally, a sealing sleeve 232 is further sleeved on the plug 231, so that the sealing sleeve 232 can be in sealing contact with the edge of the communication port 221, thereby avoiding a gap from being generated between the plug 231 and the communication port 221, and reducing the water leakage.

Referring to fig. 3, 5 and 6, according to any of the above embodiments, the water storage channel 120 includes a water inlet section 121 vertically passing through the box 100, a middle section 122 transversely extending from the top of the water inlet section 121, and a water outlet section 123 downwardly extending from the middle section 122; wherein the lower end portion of the water inlet section 121 forms the water storage inlet 12 a; the end of the water outlet section 123 forms the water storage outlet 12 b.

Specifically, the top of the box 100 is provided with a container 130, and the container 130 is a groove formed by the top wall of the box 100 being recessed towards the inside of the water storage cavity 110; the middle section 122 of the water storage channel 120 is located in the receiving groove 130. The middle part of the water inlet section 121 of the water storage flow passage 120 is hidden in the box body 100; the lower end part of the water inlet section 121 penetrates out of the bottom of the tank 100 to the lower side and forms the water storage inlet 12 a; the upper end of the water inlet section 121 penetrates out of the top of the box 100 to the accommodating groove 130, and is connected to one end of the middle section 122. The water outlet section 123 of the water storage channel 120 extends into the water storage cavity 110 of the box 100 from the other end of the middle section 122 through the accommodating groove 130, and the water storage outlet 12b is formed at the end of the water outlet section 123.

Because the middle part of the water inlet section 121 is accommodated in the box body 100, a supporting column 140 surrounding the middle part of the water inlet section 121 is further arranged in the box body 100, the diameter of the supporting column 140 is gradually reduced from bottom to top, so as to enhance the strength of the middle part of the water inlet section 121, and bear the gravity of the middle section 122 and the water outlet section 123 above the water inlet section 121, so as to prevent the water inlet section 121 from being bent and deformed.

In addition, since the upper end of the water inlet section 121 penetrates out of the top of the box 100, a third sealing ring 150 is further embedded at a position where the upper end of the water inlet section 121 penetrates through the top of the box 100, and the third sealing ring 150 is sleeved on the outer periphery of the upper end of the water inlet section 121 to seal a gap between the water inlet section 121 and the box 100, so that the box 100 is isolated from the external environment, and the sealing performance of the box 100 is improved.

Referring to fig. 4, 5 and 10, since the water storage outlet 12b of the water storage flow passage 120 is located inside the tank 100, the second ball float valve 300 may be configured as a ball float type liquid level switch or a mechanical ball float type liquid level switch. If the second ball float valve 300 is configured as a ball float level switch, the design thereof can be designed accordingly with reference to the above description, and the details thereof are not repeated herein.

In this embodiment, the second float valve 300 is configured as a mechanical float level switch. The second ball cock 300 includes a connecting rod 310, a second ball 320, and a piston head 330; one end of the connecting rod 310 is rotatably connected with the box 100; the second floating ball 320 is connected with the other end of the connecting rod 310; the piston head 330 is provided on the connecting rod 310 for blocking the water storage outlet 12 b.

Specifically, the link 310 of the second float valve 300 is disposed in an L-shape, and the link 310 has a first end and a second end; the first end of the connecting rod 310 is rotatably mounted on the inner wall of the box 100; the second floating ball 320 is fixedly connected to the second end of the connecting rod 310. The piston head 330 is fixed to the connecting rod 310 near the first end to be supported by the connecting rod 310.

When the water level in the tank 100 is lower than the second upper limit water level, the second ball float valve 300 is in an open state, and the second ball float 320 floats on the water surface, and the piston head 330 of the connecting rod 310 is far away from the water storage outlet 12b (as shown in fig. 4). As the water level rises, the second floating ball 320 floats upwards and drives the connecting rod 310 to swing upwards, so that the connecting rod 310 supports the piston head 330 upwards, and the piston head 330 moves towards the water storage outlet 12 b. When the water level in the tank 100 is higher than the first upper water level and lower than the second upper water level, the piston head 330 of the second ball float valve 300 has not reached the water storage outlet 12b, and thus the water storage outlet 12b has not been blocked, that is, the second ball float valve 300 is still in the open state. Until the water level in the tank 100 is equal to or higher than the second upper limit water level, the piston head 330 lifted by the rod 310 moves to the water storage outlet 12b to block the water storage outlet 12b, so that the second ball cock 300 is switched to the closed state (as shown in fig. 5).

It is worth mentioning that the second ball float valve 300 is only arranged at the water outlet of the water tank 10 of the traditional partial water dispenser for connecting with the water outlet device, so that the second ball float 320 of the second ball float valve 300 always floats on the water surface, and the second ball float 320 floats indefinitely when the water tank 10 of the water dispenser is in a critical water full state, thereby triggering the water dispenser to be frequently started. In the embodiment, since the first ball float 200 functions as a first anti-overflow mechanism, after the water storage inlet 12a is closed by the first ball float 200, the water level of the water tank 10 of the water dispenser cannot easily rise to the second upper water level, so that the occurrence of the situation that the second ball float 300 is floating irregularly can be effectively reduced, and the water dispenser can be prevented from being frequently opened.

Further, the inner diameter of the water storage inlet 12a is greater than or equal to 2mm, so that the water outlet pressure of the water storage inlet 12a is lower, when the water tank 10 of the water dispenser is in a critical water full state, the second ball float valve 300 is not easily triggered, and the frequent opening of the water dispenser caused by the triggering of the water dispenser by the second ball float valve 300 can be avoided. The inner diameter of the water storage inlet 12a may be, but is not limited to, 3mm, 4mm, 5mm, 7mm, 9mm, etc.

Referring to fig. 6, 10 and 11, in an embodiment, the second ball float valve 300 further includes a valve support 340, the valve support 340 is fixed on the top of the tank 100, the valve support 340 is rotatably connected to the connecting rod 310, the valve support 340 is provided with a piston socket 341 for movably inserting the piston head 330 of the connecting rod 310, and a pipe socket 342 communicated with the piston socket 341 for inserting the water storage outlet 12 b.

When assembled, the valve seat 340 of the second ball float valve 300 is mounted at the bottom of the receiving groove 130, and the pipe insertion opening 342 of the valve seat 340 is exposed in the receiving groove 130, so that the water storage outlet 12b of the water storage flow passage 120 can be inserted downward from the receiving groove 130 into the pipe insertion opening 342 of the valve seat 340. The piston head 330 of the connecting rod 310 is movably inserted into the piston socket 341 of the valve seat 340, so that when the connecting rod 310 swings, the piston head 330 moves in the piston socket 341, the piston head 330 is always aligned with the water storage outlet 12b, and the piston head 330 can close the water storage outlet 12b in an aligning way, thereby avoiding the piston head 330 from being staggered with the water storage outlet 12b and being difficult to close.

Further, a second mounting opening 112 for mounting the valve seat 340 is formed in the top wall of the box 100, a second sealing ring 350 is embedded in the second mounting opening 112, and the second sealing ring 350 is sleeved on the periphery of the valve seat 340 in a sleeving manner. Specifically, the box 100 has a second mounting opening 112 formed at the bottom of the receiving groove 130.

When the valve holder 340 is installed, the second sealing ring 350 is sleeved on the outer circumference of the valve holder 340, and then the valve holder 340 is installed on the second installation opening 112, so that the second sealing ring 350 is inserted into the second installation opening 112 along with the valve holder 340. Finally, the water outlet section 123 of the water storage channel 120 is inserted into the pipe socket 342 of the valve seat 340, so that the water storage outlet 12b at the end of the water outlet section 123 corresponds to the piston socket 341 through the pipe socket 342, thereby facilitating the piston head 330 of the second ball float valve 300 to open and close the water storage outlet 12 b.

Referring to fig. 2 and 12, the invention further provides a water dispenser, which comprises an instant heating device 20, a water outlet device 30 and a water tank 10 of the water dispenser. The specific structure of the water tank 10 of the water dispenser refers to the above embodiments. Since the water dispenser adopts all the technical schemes of all the embodiments, all the beneficial effects brought by the technical schemes of the embodiments are also achieved, and the detailed description is omitted. The first ball float valve 200 of the water dispenser tank 10 is connected with a water inlet pipeline, and the water storage cavity 110 of the water dispenser tank 10 is sequentially connected with the heating device and the water outlet device.

Specifically, the water inlet port 222 of the first ball float valve 200 is connected to a water inlet pipeline to communicate with a water supply source through the water inlet pipeline, wherein the water supply source may be tap water, barreled water, or a water source configured by the user. The water outlet port 223 of the first ball float valve 200 is connected to the water storage inlet port 12a of the water storage flow passage 120 of the water dispenser tank 10 to deliver and store water replenished from the water supply source into the housing 100. The box body 100 is provided with two cold water outlet ends 11, wherein one cold water outlet end 11 is communicated with the instant heating device 20 to supplement cold water for the instant heating device 20; the other cold water outlet end 11 is communicated with the water tank connecting end 33 of the water outlet device 30; the hot water outlet end 21 of the instant heating device 20 is communicated with the instant heating connecting end 32 of the water outlet device 30.

When the water level of the box body 100 is lower than a first upper limit water level in the water inlet process of the box body 100 of the water dispenser, the first ball float valve 200 and the second ball float valve 300 are both in an initial state; the first ball float 200 connects the water storage inlet 12a and the water supply source, and the water from the water supply source enters the water storage channel 120 through the water storage inlet 12a and is discharged into the water storage chamber 110 of the water dispenser tank 10 from the water storage outlet 12b of the water storage channel 120. Then, the water level in the water tank 10 of the water dispenser gradually rises, and when the water level in the water tank 10 of the water dispenser rises to the first upper limit water level, the first ball float valve 200 is switched from the initial state to the closed state, so that the water storage inlet 12a of the water storage flow passage 120 is closed, and the water supply to the water tank 10 is stopped.

In the above-mentioned process of water inlet of the water dispenser, if the first ball float valve 200 fails to switch to the closed state in time when the water level in the water tank 10 of the water dispenser rises to the first upper limit water level, the water storage flow passage 120 still stores water into the water tank 10 of the water dispenser, and the water level in the water tank 10 of the water dispenser continues to rise. When the water level in the water tank 10 of the water dispenser rises to the second upper limit water level, the second ball float valve 300 is switched from the initial state to the closed state, so that the water storage outlet 12b of the water storage flow passage 120 is closed, and the water supply of the water tank 10 is stopped.

For the first and

second ball valves

200 and 300, the first and

second ball valves

Referring to fig. 2 and 12, in an embodiment, the water dispenser further includes a housing 40, and the housing 40 has an installation cavity; the instant heating device 20 and the water dispenser tank 10 are both arranged in the mounting cavity of the shell 40, and the water dispenser tank 10 and the instant heating device 20 are arranged along the vertical direction; or, the water tank 10 of the water dispenser and the instant heating device 20 are arranged along the left and right direction; still alternatively, the water tank 10 of the water dispenser and the instant heating device 20 are arranged in the front-back direction. In practical production, the arrangement of the water tank 10 of the water dispenser and the instant heating device 20 may be designed correspondingly according to the position of the water outlet device 30 on the housing 40, and is not limited herein. In this embodiment, the water tank 10 of the water dispenser and the instant heating device 20 are arranged in the up-down direction; wherein the instant heating device 20 is mounted at the bottom of the housing 40; the water dispenser tank 10 is arranged above the instant heating device 20, and the water dispenser tank 10 is fixedly connected with the shell 40.

The water outlet device 30 is installed at the front end of the housing 40 and is used for outputting cold water or hot water for water use. A valve core assembly is disposed in the water outlet device 30 to switch the flow paths of the cold water and the hot water. When a user takes cold water, the water in the water tank 10 of the water dispenser is directly output to the water tank connecting end 33 of the water outlet device 30 from the cold water outlet end 11, and then flows out through the water outlet nozzle 31 of the water outlet device 30, so that the cold water is output for the user. When a user takes hot water, the water in the instant heating device 20 is directly output from the hot water outlet end 21 to the instant heating connecting end 32 of the water outlet device 30, and then flows out through the water outlet nozzle 31 of the water outlet device 30, so that hot water is output for the user. It should be noted that the cold water and the hot water are only relative to the temperature of the water, i.e. the temperature of the cold water is lower than the temperature of the hot water; for example, the cold water may be ice water or normal temperature water.

Further, the housing 50 of the water dispenser comprises a front shell 51 and a rear shell 52 enclosing the front shell 51 to form the mounting cavity; wherein, the water outlet device 30 is installed on the front shell 51. In theory, the water outlet device 30 may be installed on the front side surface of the front housing 51, or may be installed on both left and right side surfaces of the front housing 51. Considering that a user is generally used to receive water at the front side of the water dispenser, the water outlet device 30 is installed at the front of the front case 51.

Further, the water dispenser further comprises a display panel 60, wherein the display panel 60 is mounted on the front side surface of the front shell 51; the water outlet device 30 is located at the rear side of the display panel 60. Specifically, the water outlet device 30 is mounted on the front shell 51; the water outlet device 30 is provided with a water outlet nozzle 31, and an instant heating connecting end 32 and a water tank connecting end 33 which are communicated with the water outlet nozzle 31, wherein the instant heating connecting end 32 and the water tank connecting end 33 are both water inlet ends of the water outlet device 30; and the instant heating connection end 32 and the water tank connection end 33 penetrate through the front shell 51 to extend into the mounting cavity; wherein the instant heating connecting end 32 is communicated with the instant heating water outlet end 21 of the instant heating device 20; the water tank connecting end 33 is communicated with the water tank outlet end 11 of the water dispenser water tank 10. The water outlet device 30 is also provided with two adjusting pieces 35 which are respectively used for adjusting the on-off of the cold and hot water flow paths; the display panel 60 is provided with two mounting portions 61, two of the mounting portions 61 are respectively adapted to mount two adjusting members 35.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A water tank of a water dispenser is characterized in that the water tank of the water dispenser comprises:

the water storage device comprises a box body, a water storage cavity and a water storage flow passage, wherein the water storage flow passage is provided with a water storage inlet communicated with a water supply source and a water storage outlet communicated with the water storage cavity and higher than the water storage inlet;

a first ball float valve installed on the tank, the first ball float valve being connected to the water storage inlet to close the water storage inlet when the water level of the tank is equal to or higher than a first upper limit water level; and

a second ball float valve installed on the tank, the second ball float valve being connected to the water storage outlet to close the water storage outlet when the water level of the tank is equal to or higher than a second upper limit water level, the second upper limit water level being higher than the first upper limit water level.

2. The water dispenser tank of claim 1 wherein the water storage inlet is located outside the tank; the first float valve includes:

the first floating ball is arranged in the box body; and

the switch valve body is arranged on the outer side of the box body and used for connecting the water storage inlet and a water supply source, the switch valve body is in linkage with the first floating ball, and the switch valve body has an initial state of keeping opening and a closed state of switching to closing after the first floating ball is floated.

3. The water dispenser tank of claim 2 wherein the switch valve body comprises:

a valve seat provided with a communication port for communicating the water storage inlet with a water supply source; and

the valve core is movably embedded in the valve seat along the vertical direction, is opposite to the communication port and is linked with the first floating ball;

4. The water dispenser tank of claim 3 wherein the first float valve further comprises a magnetic member, the magnetic member being secured within the first float valve;

when the switch valve body is in an initial state, the magnetic part and the valve core are magnetically adsorbed, so that the valve core moves upwards to open the communication port;

when the switch valve body is in a closed state, the magnetic part is separated from the valve core, so that the valve core falls back downwards to seal the communicating port.

5. The water tank of the water dispenser as claimed in claim 4, wherein the valve seat is provided with a mounting post, and the mounting post penetrates through the tank body and extends into the water storage cavity so as to allow the first floating ball to be movably sleeved; and a valve cavity which is opened towards the communication port is arranged in the mounting column and is used for movably mounting the valve core.

6. The water dispenser tank of claim 5 wherein the first float comprises a float shell and a guide sleeve constructed within the float shell, the guide sleeve being movably received on the mounting post.

7. The water tank of the water dispenser as claimed in claim 6, characterized in that the bottom wall of the floating spherical shell is provided with an annular groove around the periphery of the socket of the guide sleeve; the magnetic piece is arranged in an annular shape and embedded in the annular groove.

8. The water dispenser tank of claim 5 wherein the first float valve further comprises a reset member disposed in the valve chamber of the mounting post, one end of the reset member being connected to the upper end of the mounting post and the other end of the reset member being connected to the upper end of the valve core.

9. The water tank of the water dispenser as claimed in claim 5, characterized in that the bottom of the box body is provided with a first mounting opening for the mounting post to pass through, a first sealing ring is embedded in the first mounting opening, and the first sealing ring is sleeved on the periphery of the mounting post.

10. The water dispenser tank of any one of claims 3 to 9 wherein the valve seat is further provided with a water inlet port and a water outlet port; wherein the water inlet interface is suitable for communicating the communication port with a water supply source; the water outlet interface is suitable for communicating the communication port with the water storage inlet.

11. The water dispenser tank of any one of claims 1 to 9 wherein the water storage outlet is located inside the tank; the second float valve includes:

one end of the connecting rod is rotatably connected with the box body;

the second floating ball is connected with the other end of the connecting rod;

a piston head disposed on the connecting rod for sealing the water storage outlet.

12. The water dispenser tank of claim 11 wherein the second ball float valve further comprises a valve support, the valve support being fixed to the tank body, the valve support being rotatably connected to the connecting rod; the valve support is provided with a piston socket for movably inserting the piston head and a pipe socket communicated with the piston socket for inserting the water storage outlet.

13. The water tank of the water dispenser as claimed in claim 12, wherein the top wall of the box body is provided with a second mounting opening for mounting the valve support, a second sealing ring is embedded in the second mounting opening, and the second sealing ring is sleeved on the periphery of the valve support.

14. The water dispenser tank of any one of claims 1 to 9 wherein the water storage flow path comprises a water inlet section passing vertically through the tank body, a middle section extending laterally from the top of the water inlet section, and a water outlet section extending downwardly from the middle section;

wherein the lower end of the water inlet section forms the water storage inlet;

the lower end of the water outlet section forms the water storage outlet.

15. The water dispenser tank of any one of claims 1 to 9 wherein the internal diameter of the water storage outlet is greater than or equal to 2 mm.

16. A water dispenser, characterized in that the water dispenser comprises:

an instantaneous heating device;

a water outlet device; and

the water dispenser tank of any one of claims 1 to 15, wherein the first ball float valve of the water dispenser tank is communicated with a water inlet pipeline, and a water storage cavity of the water dispenser tank is connected with the instant heating device and the water outlet device through a water outlet pipeline.