Dispensing device and dishwasher having the same

Abstract

The utility model discloses a putting device and have its dish washer relates to liquid putting distribution equipment technical field, the utility model provides putting device, include: putting box is structured for holding liquid material, and the inner chamber of putting box is provided with the liquid outlet pipe of intercommunication, and the liquid inlet of liquid outlet pipe is placed in the bottom of putting box inner chamber, the inlet of flush waterway is used for with water source intercommunication, and the outlet of flush waterway is communicated with the liquid inlet end of putting pump, putting pump, the liquid inlet end of putting pump is communicated with the liquid outlet of liquid outlet pipe, putting pipe, the liquid inlet of putting pipe is communicated with the liquid outlet end of putting pump, and the outlet of putting pipe is used for to the liquid export outside. In this technical scheme, liquid material will be together with the water that converges from flush waterway through putting pump and putting pipe, and liquid material will be diluted, and the mobility is enhanced, and the residual amount in putting pipe will reduce, and the jam probability is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of liquid dispensing and distribution equipment, specifically a dispensing device and a dishwasher having the same. Background Technology

[0002] Currently, with the improvement of living standards, dishwashers are gradually becoming a common household appliance. Traditional dishwashers work by using rotating spray arms to apply detergent-containing water to the surface of the dishes, cleaning them through chemical action. Therefore, adding detergent is an essential step in the washing process.

[0003] Current technologies require manual addition of detergent tablets or a fixed amount of detergent powder into the dishwasher's cleaning chamber before each wash cycle. This process is cumbersome and extremely inconvenient for users.

[0004] In the dishwasher, washing machine, and auto-cooker industries, some products also use liquid consumables. Liquid consumables are easier to dispense automatically compared to powders or tablets. Existing liquid consumable dispensing mechanisms use a liquid pump to directly draw in the liquid consumable. While this method enables automatic dispensing, it suffers from stability issues. Specifically, when the dispensing device is not used for extended periods, the water in the liquid consumable at the end of the dispensing line will continuously evaporate, causing a sharp increase in solvent concentration, leading to viscosity or caking, which can cause blockages in the line. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a dispensing device and a dishwasher having the above-mentioned technical deficiencies and to prevent liquid consumables from clogging in the dispensing tube.

[0006] In a first aspect, this utility model provides a dispensing device, comprising:

[0007] The dispensing box is configured to hold liquid consumables. The inner cavity of the dispensing box is connected to a liquid outlet pipe, and the inlet of the liquid outlet pipe is located at the bottom of the inner cavity of the dispensing box.

[0008] The flushing water path has an inlet for connecting to a water source and an outlet for connecting to the inlet of a dispensing pump.

[0009] A dispensing pump, wherein the inlet of the dispensing pump is connected to the outlet of the outlet pipe;

[0010] The dispensing pipe has its inlet connected to the outlet of the dispensing pump; its outlet is used to discharge liquid. In this technical solution, the liquid consumables, along with the water flowing from the flushing water path, pass through the dispensing pump and the dispensing pipe. This dilutes the liquid consumables, increases their fluidity, reduces the amount of residue in the dispensing pipe, and decreases the probability of blockage.

[0011] To further optimize this technical solution, an A solenoid valve is installed in the flushing water path; the A solenoid valve is used to control the on / off connection between the flushing water path and the dispensing pump. In this optimized technical solution, when dispensing liquid consumables, the A solenoid valve can be closed independently to shut off the connection between the flushing water path and the dispensing pump, thereby increasing the dispensing speed of the liquid consumables; at the end of the liquid consumable dispensing process, the A solenoid valve can be opened to introduce water to dilute the remaining liquid consumables.

[0012] As one implementation of the above technical solution, the liquid outlet pipe is equipped with a B solenoid valve, which is used to control the on / off state of the liquid outlet pipe and the dispensing pump. By alternating the opening and closing of the B solenoid valve and the A solenoid valve, the switching between dispensing liquid consumables separately and rinsing with water separately can be realized, which can improve both dispensing efficiency and rinsing efficiency.

[0013] As another implementation of the above technical solution, the dispensing device also includes a two-position three-way solenoid valve; the two-position three-way solenoid valve is used to switch the connection between the flushing water path and the outlet pipe and the dispensing pump, which can improve both dispensing efficiency and flushing efficiency.

[0014] To further optimize this technical solution, the upper part of the dispensing box is provided with a filling port, and the filling port is sealed with a cap; the cap is provided with a one-way valve that allows one-way communication with the inner cavity of the dispensing box.

[0015] To further optimize this technical solution, the dispensing pump is a peristaltic pump.

[0016] Secondly, this utility model provides a dishwasher, wherein the dishwasher is equipped with the dispensing device described in any one of the technical solutions of the first aspect above.

[0017] To further optimize the dishwasher, the dishwasher is equipped with a water storage chamber, and the inlet of the rinsing water path is connected to the water storage chamber.

[0018] To further optimize the dishwasher, the dishwasher is equipped with a dispensing box holder, and the dispensing box can be detachably installed in the dispensing box holder. Attached Figure Description

[0019] Figure 1 This is a simplified schematic diagram of the dispensing device in Example 1;

[0020] Figure 2This is a simplified schematic diagram of the dispensing device in Example 2;

[0021] Figure 3 This is a simplified schematic diagram of the dispensing device in Example 3;

[0022] Figure 4 This is a simplified schematic diagram of the dispensing device in Example 4;

[0023] Figure 5 This is a simplified schematic diagram of the dishwasher structure in Example 7;

[0024] In the diagram: 1. Dispensing box; 2. Dispensing pipe; 3. Rinse water path; 4. Dispensing pump; 5. Dispensing pipe; 6. Solenoid valve A; 7. Solenoid valve B; 8. Two-position three-way solenoid valve; 9. Filling port; 10. Cap; 11. Check valve; 12. Dishwasher; 13. Water storage chamber; 14. Dispensing box base; 15. Water source; 16. Water inlet; 17. Washing chamber. Detailed Implementation

[0025] like Figure 1 Example 1 shown:

[0026] A dispensing device, comprising:

[0027] Dispensing box 1 is configured to hold liquid consumables. The inner cavity of dispensing box 1 is connected to a liquid outlet pipe 2, and the inlet of the liquid outlet pipe 2 is located at the bottom of the inner cavity of dispensing box 1.

[0028] The flushing water path 3 has an inlet for connecting to a water source and an outlet for connecting to the inlet of the dispensing pump 4.

[0029] Dispensing pump 4, the inlet end of which is connected to the outlet of the outlet pipe 2;

[0030] The inlet of the dispensing pipe 5 is connected to the outlet of the dispensing pump 4; the outlet of the dispensing pipe 5 is used to discharge liquid outward.

[0031] In this embodiment, when the dispensing device is applied to a dishwasher, the liquid consumable contained in the dispensing box 1 can be detergent or rinse aid; when the dispensing device is applied to other devices, such as a cooking machine, the liquid consumable can also be other types of liquids, such as various liquid seasonings, soy sauce, oyster sauce, cooking oil, or a solution containing dissolved seasonings; in this embodiment, the water source can be tap water or a water storage tank with water storage function; in this embodiment, the dispensing pipe 5 is connected to the liquid outlet of the dispensing pump 4, and the pipe through which the dispensing pump 4 discharges liquid is also considered as the dispensing pipe 5.

[0032] Regarding the control logic of this embodiment: The dispensing pump is controlled by the control circuit of the equipment to which the dispensing device is applied. Based on the equipment's own operating program, the pump's opening and closing logic is set. The opening duration is comprehensively set based on the pump's flow rate, the required amount of liquid consumables, and the mixing ratio of liquid consumables and water at the interfaces of the outlet pipe 2 and the flushing water path 3. Those skilled in the art can develop adapted control circuits based on this control logic. This part of the work can be implemented by those skilled in the art using existing conventional techniques; therefore, no accompanying drawings are provided to illustrate the control circuit for a specific device.

[0033] like Figure 2 Example 2 shown:

[0034] This embodiment is a downstream implementation of embodiment 1: A solenoid valve 6 is installed in the flushing water path 3; the solenoid valve 6 is used to control the on / off connection between the flushing water path 3 and the delivery pump 4.

[0035] Regarding the working logic of solenoid valve A 6 and dispensing pump 4: When dispensing liquid consumables, dispensing pump 4 is turned on alone, and the liquid consumables are dispensed separately; after a certain amount of liquid consumables are dispensed, solenoid valve A 6 is turned on at the same time, and water and liquid consumables are extracted at the same time. After a certain period of extraction, dispensing pump 4 and solenoid valve A 6 are turned off at the same time to complete the dispensing and rinsing work.

[0036] Based on the above sequence logic: the dispensing pump 4 and solenoid valve A 6 are controlled by the control circuit of the equipment to which the dispensing device is applied. According to the equipment's own operating program, the opening and closing logic of the dispensing pump and solenoid valve A 6 is set. The opening duration of the dispensing pump 4 and solenoid valve A 6 is comprehensively set based on the flow rate of the dispensing pump 4, the required amount of liquid consumables, and the mixing ratio of liquid consumables and water at the interfaces of the outlet pipe 2 and the flushing water path 3. Those skilled in the art can develop adapted control circuits based on this control logic. This part of the work can be implemented by those skilled in the art using existing conventional technology; therefore, no accompanying drawings are provided to illustrate the control circuit for a specific piece of equipment.

[0037] like Figure 3 Example 3 shown:

[0038] This embodiment is a downstream implementation of embodiment 2: the outlet pipe 2 is equipped with a B solenoid valve 7, which is used to control the on / off connection between the outlet pipe 2 and the dispensing pump 4.

[0039] Regarding the operating logic of solenoid valve 6 (A), solenoid valve 7 (B), and dispensing pump 4: When dispensing liquid consumables, dispensing pump 4 and solenoid valve 7 (B) are opened first, and the liquid consumables are dispensed separately during this stage. After a certain amount of liquid consumables has been dispensed, solenoid valve 6 (A) is opened and solenoid valve 7 (B) is closed in the next stage, and water is drawn separately for rinsing for a certain period of time. Then, dispensing pump 4 and solenoid valve 6 (A) are closed simultaneously to complete the dispensing and rinsing process. The equipment used in the dispensing device should be matched with the control circuits of solenoid valves 6 (A), 7 (B), and dispensing pump 4 according to this operating logic.

[0040] like Figure 4 Example 4 shown:

[0041] This embodiment is a downstream implementation of embodiment 1: the dispensing device further includes a two-position three-way solenoid valve 8; the two-position three-way solenoid valve 8 is used to switch the two-way conduction between the flushing water path 3, the liquid outlet pipe 2 and the dispensing pump 4.

[0042] Regarding the operating logic of the two-position three-way solenoid valve 8 and the dispensing pump 4: When dispensing liquid consumables, the dispensing pump 4 is turned on, and the two-position three-way solenoid valve 8 is in the state where the outlet pipe 2 is connected to the dispensing pump 4. During this stage, the liquid consumables are dispensed separately. After a certain amount of liquid consumables has been dispensed, the two-position three-way solenoid valve 8 is turned on in the next stage, where the flushing pipe 3 is connected to the dispensing pump 4. During this stage, water is drawn separately, and after flushing for a certain period of time, the dispensing pump 4 is turned off, while the two-position three-way solenoid valve 8 remains in the open state, thus completing the dispensing and flushing work. The equipment used in the dispensing device should be matched with the open state of the two-position three-way solenoid valve 8 and the control circuit of the dispensing pump 4 according to this operating logic.

[0043] like Figure 4 As shown, this embodiment is a downstream implementation of Embodiment 1: the dispensing box 1 has a filling port 9 at its upper part, and the filling port 9 is sealed with a cap 10; the cap 10 is provided with a one-way valve 11 that allows one-way communication with the inner cavity of the dispensing box 1. The dispensing box 1 with the filling port 9 allows users to easily add liquid consumables into the dispensing box 1. When the liquid consumable is consumed, outside air can enter the dispensing box 1 through the one-way valve 11 to balance the internal and external air pressure of the dispensing box 1. Of course, in addition to this, the dispensing box 1 may not have a cap 10 and a one-way valve 11, and the dispensing box 1 may be set as a disposable container with a soft shell.

[0044] This embodiment is a downstream implementation of Embodiment 1: the delivery pump 4 is a peristaltic pump. Peristaltic pumps deliver liquid by driving the deformation of the hose, resulting in high stability. Besides peristaltic pumps, the delivery pump 4 can also be a gear pump, plunger pump, or diaphragm pump. When a delivery pump without a self-closing structure is used, an electromagnetic switch valve that opens and closes in conjunction with the delivery pump should be installed upstream of the delivery pump.

[0045] like Figure 5As shown, this embodiment proposes a dishwasher 12, which is equipped with the dispensing device described in any one of embodiments 1-6.

[0046] In this embodiment, the dispensing device can be set up in one set or multiple sets; multiple sets of dispensing devices can be used to dispense detergent and rinse aid respectively.

[0047] As a downstream implementation of Example 7: The dishwasher 12 is equipped with a water storage chamber 13, and the inlet of the rinsing water path 3 is connected to the water storage chamber 13.

[0048] As a downstream implementation of Example 7: The dishwasher 12 is provided with a dispensing box seat 14, and the dispensing box 1 is detachably installed in the dispensing box seat 14.

[0049] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0050] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

Claims

1. A dispensing device, characterized in that, include: The dispensing box is configured to hold liquid consumables. The inner cavity of the dispensing box is connected to a liquid outlet pipe, and the inlet of the liquid outlet pipe is located at the bottom of the inner cavity of the dispensing box. The flushing water path has an inlet for connecting to a water source and an outlet for connecting to the inlet of a dispensing pump. A dispensing pump, wherein the inlet of the dispensing pump is connected to the outlet of the outlet pipe; The dispensing pipe has its inlet connected to the outlet of the dispensing pump; the outlet of the dispensing pipe is used to discharge liquid outwards.

2. The dispensing device according to claim 1, characterized in that: The flushing water circuit is equipped with solenoid valve A; solenoid valve A is used to control the connection and disconnection between the flushing water circuit and the delivery pump.

3. The dispensing device according to claim 2, characterized in that: The outlet pipe is equipped with a B solenoid valve, which is used to control the connection and disconnection between the outlet pipe and the dispensing pump.

4. The dispensing device according to claim 1, characterized in that: It also includes a two-position three-way solenoid valve; the two-position three-way solenoid valve is used to switch the connection between the flushing water path, the outlet pipe and the delivery pump.

5. The dispensing device according to claim 1, characterized in that... The dispensing box is provided with a filling port at the top, and the filling port is sealed with a cap; the cap is provided with a one-way valve that allows one-way flow to the inner cavity of the dispensing box.

6. The dispensing device according to claim 1, characterized in that... The pump used for dispensing is a peristaltic pump.

7. A dishwasher, characterized in that... The dishwasher is equipped with the dispensing device as described in any one of claims 1-6.

8. The dishwasher according to claim 7, characterized in that... The dishwasher is equipped with a water storage chamber, and the inlet of the rinsing water path is connected to the water storage chamber.

9. The dishwasher according to claim 7, characterized in that: The dishwasher is equipped with a dispensing box holder, and the dispensing box can be detachably installed in the dispensing box holder.

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