Water dispenser with auxiliary water tank

Abstract

The utility model discloses a water dispenser with an auxiliary water tank, which comprises a water dispenser main body, the water dispenser main body is provided with a water inlet structure and a water outlet structure, a hot liner is arranged between the water inlet structure and the water outlet structure, the water dispenser main body is provided with a balanced water tank for balancing the water pressure of the hot liner, the balanced water tank is communicated with the hot liner, and the balanced water tank is provided with a pressure relief part. The utility model has the following advantages and effects: the scheme utilizes a new mechanical structure, and has the effects of releasing the water pressure of the hot liner to the balanced reservoir in real time, preventing the situation of scalding caused by hot water injection during water receiving, and being safer to use.

Description

Technical Field

[0001] The utility model relates to the technical field of water dispensers, in particular to a water dispenser with an auxiliary water tank. Background Art

[0002] The existing Chinese patent with the publication number CN206462840U discloses an on - power protection device based on the hot water tank of a direct drinking machine. The key points of its technical solution include a water storage tank, a hot water tank, a controller, and a heating element arranged in the hot water tank. It also includes a heating control circuit for controlling the on - off of the heating element and a low - water - level sensor arranged in the water storage tank. The heating control circuit and the low - water - level sensor are both connected to the controller. The controller performs detection on the low - water - level sensor. If the low - water - level switch is activated, a control signal is output. When the heating switch is turned on and the controller has not output a control signal, a power - off signal is output to the heating control circuit. When the heating switch is turned on and the controller has already output a control signal, the controller outputs a power - on signal to the heating control circuit.

[0003] However, the above - mentioned direct drinking machine has the following disadvantages: like common direct drinking machines on the market, the direct drinking machine heats the raw water transported from the water storage tank through the hot water tank to prepare hot water for use. However, if the hot water tank prepares hot water when it is full of water, due to the principle of thermal expansion and contraction, the heated and expanded hot water may overflow from the water connection faucet, and even the hot water tank may burst, causing potential safety hazards and urgent improvement is needed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a water dispenser with an auxiliary water tank, which has the effects of being able to release the water pressure in the hot water tank to the balance water tank in real time, preventing scalding caused by hot water spraying during water connection, and being safer to use.

[0005] The above - mentioned technical purpose of the utility model is achieved through the following technical solutions: a water dispenser with an auxiliary water tank includes a water dispenser main body. The water dispenser main body is provided with a water inlet structure and a water outlet structure. A hot water tank is arranged between the water inlet structure and the water outlet structure. The water dispenser main body is provided with a balance water tank for balancing the water pressure in the hot water tank. The balance water tank is communicated with the hot water tank, and the balance water tank is provided with a pressure - relief part.

[0006] By adopting the above technical solution, since the heat tank is connected to the balance water tank, the liquid level inside the heat tank remains flush with the balance water tank all the time before the heat tank is filled with water. The increased hot water volume due to heating and expansion in the heat tank will be introduced into the balance water tank. Additionally, when the water pressure in the heat tank is too high, the water pressure in the heat tank is discharged from the pressure relief part through the balance water tank, thereby releasing the water pressure in the heat tank, preventing the water outlet structure from overflowing or the heat tank from bursting due to excessive water pressure. Moreover, it can also prevent the situation that when the user uses the water outlet structure to receive water, hot water spurts out during water receiving due to excessive water pressure in the heat tank, resulting in scalding. It has the effects of being able to release the water pressure in the heat tank to the balance water tank in real time, preventing hot water from spurting out during water receiving and causing scalding, and being safer to use.

[0007] A further setting of the present utility model is that: the balance water tank includes a housing and a top cover, the housing and the top cover are buckled to form a balance chamber, and the pressure relief part is arranged on the top cover and communicates with the balance chamber.

[0008] A further setting of the present utility model is that: a dust-proof sealing structure is arranged in the balance chamber.

[0009] By adopting the above technical solution, when the balance chamber is in a waterless state, the dust-proof sealing structure can effectively prevent foreign matters such as dust or insects from entering the balance water tank from the pressure relief part and finally entering the heat tank, resulting in water source pollution.

[0010] A further setting of the present utility model is that: the dust-proof sealing structure includes a retaining ball arranged in the balance chamber, the density of the retaining ball is less than that of water, an inlet hole is arranged at the bottom of the balance water tank, and the retaining ball floats in the balance chamber and switches between a blocking state and a conducting state with the inlet hole.

[0011] By adopting the above technical solution, during the process that the water flow in the heat tank flows into the balance water tank from the inlet hole, by using the characteristic that the density of the retaining ball is less than that of water, the retaining ball floats up and makes the inlet hole move from the blocking state to the conducting state. When there is no water in the balance chamber, the retaining ball sinks and seals with the inlet hole, preventing foreign matters from reversely entering the heat tank through the inlet hole and causing water source pollution.

[0012] A further setting of the present utility model is that: the balance water tank includes a water inlet nozzle part, the inlet hole is opened at the bottom of the water inlet nozzle part, a guiding inclined surface with a cross-section of an inverted cone is arranged in the inner cavity of the water inlet nozzle part, the bottom of the guiding inclined surface converges at the inlet hole, and the retaining ball is in guiding cooperation with the guiding inclined surface.

[0013] By adopting the above technical solution, due to the arrangement of the guiding inclined surface, when the liquid level in the balance water tank gradually decreases, the retaining ball can smoothly slide to the bottom of the water inlet nozzle part through the guiding inclined surface and seal with the inlet hole.

[0014] A further setting of the present utility model is that: on one side of the water inlet nozzle close to the water inlet hole, a sealing rubber plug is provided. A through hole communicating with the water inlet hole is opened in the middle of the sealing rubber plug, and the sealing rubber plug is in sealing cooperation with the retaining bead.

[0015] By adopting the above technical solution, the water flow entering from the water inlet hole can flow into the balance water tank through the through hole. When the balance chamber is in a waterless state, the flexible sealing rubber plug can improve the sealing performance with the retaining bead, thereby improving the sealing performance of the water inlet hole.

[0016] A further setting of the present utility model is that: the balance water tank is provided with an anti-blocking structure, and the anti-blocking structure is used to prevent the retaining bead from blocking the inlet end of the pressure relief part.

[0017] By adopting the above technical solution, the anti-blocking structure can prevent the situation that when the liquid level in the balance water tank is too high, the retaining bead floats up and blocks the pressure relief part, so as to ensure that the pressure relief part can always release the water pressure in the balance water tank and the hot water tank in real time.

[0018] A further setting of the present utility model is that: one end of the pressure relief part extends into the balance chamber, and the anti-blocking structure includes a notch opened on the side wall of the pressure relief part, and the balance chamber is communicated with the inner cavity of the pressure relief part through the notch.

[0019] By adopting the above technical solution, when the liquid level in the balance water tank is too high, the retaining bead floats up and abuts against the bottom of the pressure relief part, which can prevent the retaining bead from detaching from the balance water tank. At this time, the excessive water pressure in the balance water tank is discharged to the pressure relief part through the notch on the side wall of the pressure relief part located in the balance chamber for pressure relief.

[0020] A further setting of the present utility model is that: the water inlet structure is connected to the water inlet end at the bottom of the hot water tank through a water inlet pipe, and a connecting pipe is branched from the water inlet pipe, and the other end of the connecting pipe is connected to the balance water tank.

[0021] A further setting of the present utility model is that: the position height of the top of the balance water tank is higher than the position height of the top of the hot water tank, so that the outlet end position of the pressure relief part is higher than the top of the hot water tank.

[0022] By adopting the above technical solution, it is ensured that the hot water tank is first in a full water state and then the liquid level in the balance water tank will gradually rise to the full water state, preventing the situation that the hot water in the hot water tank directly discharges through the pressure relief part of the balance water tank when the liquid level in the hot water tank is not full.

[0023] To sum up, the present utility model has the following beneficial effects:

[0024] A water dispenser with a heat tank and a balance water tank is provided inside the main body of the water dispenser. The balance water tank is connected to the bottom of the heat tank, and a pressure relief part is provided at the top of the balance water tank, so that the liquid level inside the heat tank is always flush with the balance water tank before it is filled with water. The increased hot water volume due to heating and expansion in the heat tank will be introduced into the balance water tank. In addition, when the water pressure in the heat tank is too high, the water pressure in the heat tank is discharged from the pressure relief part through the balance water tank, thereby releasing the water pressure in the heat tank, preventing the water outlet structure from overflowing or the heat tank from bursting due to excessive water pressure. In addition, it can also prevent the situation that when the user uses the water outlet structure to receive water, hot water is ejected due to too high water pressure in the heat tank, resulting in scalding. It has the effects of being able to release the water pressure in the heat tank to the balance water tank in real time, preventing hot water from being ejected during water receiving and causing scalding, and being safer to use. Brief Description of the Drawings

[0025] Figure 1 is the structural diagram of the present utility model.

[0026] Figure 2 is the internal structural diagram of the present utility model.

[0027] Figure 3 is the cross-sectional view of the balance water tank of the present utility model.

[0028] In the figure: 1. Main body of the water dispenser; 11. Water inlet structure; 12. Water inlet pipe; 121. Connecting pipe; 2. Water outlet structure; 3. Heat tank; 4. Balance water tank; 4a. Balance chamber; 4b. Water inlet hole; 41. Outer shell; 411. Water inlet nozzle; 411a. Guide inclined plane; 412. Sealing rubber plug; 412a. Through hole; 42. Top cover; 421. Pressure relief part; 421a. Notch; 5. Retaining bead. Detailed Embodiment

[0029] The present utility model will be further described below with reference to the accompanying drawings.

[0030] A water dispenser with an auxiliary water tank, as Figure 1-2As shown in the figure, it includes a water dispenser main body 1. The water dispenser main body 1 is provided with a water inlet structure 11 and a water outlet structure 2. A hot water tank 3 is arranged between the water inlet structure 11 and the water outlet structure 2. The water dispenser main body 1 is provided with a balance water tank 4 for balancing the water pressure in the hot water tank 3. The balance water tank 4 is communicated with the hot water tank 3, and the balance water tank 4 is provided with a pressure relief part 421. In this embodiment, the pressure relief part 421 is set as a pressure relief pipe; the water inlet structure 11 is connected to the water inlet end at the bottom of the hot water tank 3 through a water inlet pipe 12. The water inlet pipe 12 is branched with a connecting pipe 121, and the other end of the connecting pipe 121 is connected to the balance water tank 4; the position height of the top of the balance water tank 4 is higher than the position height of the top of the hot water tank 3, so that the outlet end position of the pressure relief part 421 is higher than the top of the hot water tank 3, ensuring that the hot water tank 3 is first in a full water state and then the liquid level in the balance water tank 4 will gradually rise to the full water state, preventing the situation that the hot water in the hot water tank 3 directly discharges through the pressure relief part 421 of the balance water tank 4 when the liquid level in the hot water tank 3 is not full.

[0031] As Figure 2-3As shown, the balance water tank 4 includes a housing 41 and a top cover 42. The housing 41 and the top cover 42 are snapped together to form a balance chamber 4a. A pressure relief part 421 is provided on the top cover 42 and communicates with the balance chamber 4a. A dust-proof sealing structure is provided in the balance chamber 4a. When the balance chamber 4a is in a waterless state, the dust-proof sealing structure can effectively prevent foreign objects such as dust or insects from entering the balance water tank 4 through the pressure relief part 421 and ultimately entering the hot water tank 3, resulting in water source pollution. The dust-proof sealing structure includes a bead 5 provided in the balance chamber 4a. The density of the bead 5 is less than the density of water. An inlet hole 4b is provided at the bottom of the balance water tank 4. The bead 5 floats in the balance chamber 4a and switches between a blocking state and a conducting state with the inlet hole 4b. During the process of the water flow in the hot water tank 3 flowing into the balance water tank 4 through the inlet hole 4b, by using the characteristic that the density of the bead 5 is less than the density of water, the bead 5 floats up and the inlet hole 4b moves from the blocking state to the conducting state. When there is no water in the balance chamber 4a, the bead 5 sinks and blocks the inlet hole 4b with each other, preventing foreign objects from reversely entering the hot water tank 3 through the inlet hole 4b and causing water source pollution. The balance water tank 4 includes a water inlet nozzle part 411. The inlet hole 4b is opened at the bottom of the water inlet nozzle part 411. The inner cavity of the water inlet nozzle part 411 is provided with a guiding inclined surface 411a with an inverted conical cross-section. The bottom of the guiding inclined surface 411a converges at the inlet hole 4b. The bead 5 is in guiding cooperation with the guiding inclined surface 411a. The setting of the guiding inclined surface 411a enables the bead 5 to smoothly slide to the bottom of the water inlet nozzle part 411 along the guiding inclined surface 411a and cooperate with the inlet hole 4b in a blocking manner during the process of the liquid level in the balance water tank 4 gradually decreasing. A sealing rubber plug 412 is provided on one side of the water inlet nozzle part 411 close to the inlet hole 4b. A through hole 412a communicating with the inlet hole 4b is opened in the middle of the sealing rubber plug 412. The sealing rubber plug 412 is in sealing cooperation with the bead 5. The water flow entering through the inlet hole 4b can flow into the balance water tank 4 through the through hole 412a. When the balance chamber 4a is in a waterless state, the flexible sealing rubber plug 412 can improve the sealing performance with the bead 5, thereby improving the sealing performance of the inlet hole 4b.

[0032] As Figure 3As shown, the balance water tank 4 is provided with an anti-blocking structure, which is used to prevent the ball 5 from blocking the inlet end of the pressure relief part 421. The anti-blocking structure can prevent the situation where the ball 5 floats up and blocks the pressure relief part 421 when the liquid level in the balance water tank 4 is too high, so as to ensure that the pressure relief part 421 can always release the water pressure in the balance water tank 4 and the hot water tank 3 in real time; one end of the pressure relief part 421 extends into the balance chamber 4a. The anti-blocking structure includes a notch 421a opened on the side wall of the pressure relief part 421. The balance chamber 4a is communicated with the inner cavity of the pressure relief part 421 through the notch 421a. When the liquid level in the balance water tank 4 is too high, the ball 5 floats up and abuts against the bottom of the pressure relief part 421, which can prevent the ball 5 from detaching from the balance water tank 4. At this time, the excessive water pressure in the balance water tank 4 is discharged to the pressure relief part 421 through the notch 421a on the side wall of the pressure relief part 421 located in the balance chamber 4a for pressure relief.

[0033] The basic working principle of the present utility model is as follows: A hot water tank 3 and a balance water tank 4 are arranged in the water dispenser main body 1. The balance water tank 4 is communicated with the bottom of the hot water tank 3. The top of the balance water tank 4 is provided with a pressure relief part 421, so that the liquid level inside the hot water tank 3 is always flush with the balance water tank 4 before the hot water tank 3 is filled with water. The increased hot water volume due to heating and expansion in the hot water tank 3 will be introduced into the balance water tank 4. In addition, when the water pressure in the hot water tank 3 is too high, the water pressure in the hot water tank 3 is discharged from the pressure relief part 421 through the balance water tank 4, so as to release the water pressure in the hot water tank 3, prevent the water outlet structure 2 from overflowing or the hot water tank 3 from being burst due to excessive water pressure, and also prevent the situation where hot water is ejected and scalds the user when receiving water by using the water outlet structure 2. It has the effects of being able to release the water pressure in the hot water tank 3 to the balance water tank 4 in real time, preventing hot water from being ejected and scalding during water receiving, and being safer to use.

[0034] The above are only the preferred embodiments of the present utility model. Therefore, all equivalent changes or modifications made according to the structures, features and principles described in the scope of the patent application of the present utility model are included in the scope of the patent application of the present utility model.

Claims

1. A water dispenser with an auxiliary water tank, comprising a water dispenser body (1), wherein the water dispenser body (1) is provided with a water inlet structure (11) and a water outlet structure (2), a heat tank (3) is provided between the water inlet structure (11) and the water outlet structure (2), and characterized in that: The water dispenser body (1) is provided with a balancing water tank (4) for balancing the water pressure of the hot water tank (3); the balancing water tank (4) is in communication with the hot water tank (3), and the balancing water tank (4) is provided with a pressure relief portion (421).

2. A water dispenser with an auxiliary water tank according to claim 1, characterized in that: The balancing water tank (4) comprises an outer shell (41) and a top cover (42); the outer shell (41) and the top cover (42) are buckled together to form a balancing chamber (4a); and the pressure relief portion (421) is arranged on the top cover (42) and is connected to the balancing chamber (4a).

3. A water dispenser with an auxiliary water tank according to claim 2, characterized in that: A dustproof sealing structure is provided in the balancing chamber (4a).

4. A water dispenser with an auxiliary water tank according to claim 3, characterized in that: The dustproof sealing structure comprises a retaining bead (5) arranged in the balancing chamber (4a), the density of the retaining bead (5) is less than the density of water, a water inlet hole (4b) is provided at the bottom of the balancing water tank (4), the retaining bead (5) is floated in the balancing chamber (4a) and switches between a blocking state and a conducting state with the water inlet hole (4b).

5. A water dispenser with an auxiliary water tank according to claim 4, characterized in that: The balancing water tank (4) comprises a water inlet nozzle (411), the water inlet hole (4b) is provided at the bottom of the water inlet nozzle (411), the inner cavity of the water inlet nozzle (411) is provided with a guide inclined surface (411a) with an inverted cone cross section, the bottom of the guide inclined surface (411a) converges at the water inlet hole (4b), and the retaining bead (5) is guided and matched with the guide inclined surface (411a).

6. A water dispenser with an auxiliary water tank according to claim 5, characterized in that: A sealing rubber plug (412) is provided on one side of the water inlet nozzle (411) close to the water inlet hole (4b), a through hole (412a) connected to the water inlet hole (4b) is provided in the middle of the sealing rubber plug (412), and the sealing rubber plug (412) is sealed and matched with the retaining bead (5).

7. A water dispenser with an auxiliary water tank according to claim 4, characterized in that: The balancing water tank (4) is provided with an anti-blocking structure, and the anti-blocking structure is used to prevent the blocking bead (5) from blocking the inlet end of the pressure relief portion (421).

8. A water dispenser with an auxiliary water tank according to claim 7, characterized in that: One end of the pressure relief portion (421) extends into the balance chamber (4a), and the anti-blocking structure includes a notch (421a) opened on the side wall of the pressure relief portion (421), and the balance chamber (4a) is connected to the inner cavity of the pressure relief portion (421) through the notch (421a).

9. A water dispenser with an auxiliary water tank according to claim 1, characterized in that: The water inlet structure (11) is connected to the water inlet end at the bottom of the heat tank (3) via a water inlet pipe (12); a connecting pipe (121) is provided on a branch of the water inlet pipe (12); the other end of the connecting pipe (121) is connected to the balancing water tank (4).

10. A water dispenser with an auxiliary water tank according to claim 1, characterized in that: The top of the balancing water tank (4) is located at a higher height than the top of the heat container (3), so that the outlet end of the pressure relief portion (421) is located at a higher height than the top of the heat container (3).

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