Detergent putting device and washing machine

Abstract

The utility model discloses a detergent putting device and a washing machine, the detergent putting device comprises a connector, the connector comprises a flushing box, a water inlet joint, a liquid inlet joint and a water outlet joint, the water inlet joint and the liquid inlet joint are respectively arranged on two opposite side walls of the flushing box and are aligned with each other, and the water outlet joint is arranged on the bottom wall of the flushing box; a buffer chamber is formed in the flushing box; the water inlet pipe is connected to the water inlet connector; the detergent delivery pump comprises a liquid outlet connector which is connected with the liquid inlet connector; the water outlet pipe is connected to the water outlet connector and used for guiding water in the buffer cavity into the washing roller. On the basis of the scheme, inlet water of the water inlet pipe can keep high pressure to flush the liquid inlet connector, in the one-time water inlet process, the detergent of the liquid inlet connector can be rapidly and thoroughly flushed, the detergent is prevented from being left in the liquid inlet connector, and when clean water is injected again for rinsing in one cleaning stage, the washing efficiency is greatly improved. The problem that the washing agent is mixed into the rinsing water to cause pollution can be avoided, and the washing effect and the user experience are optimized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of washing machines, in particular to a detergent feeding device and a washing machine. BACKGROUND

[0002] In the current household appliance technical field, some washing machines have been equipped with intelligent devices for automatically adding detergents, aiming to improve the convenience and efficiency of washing. Such washing machines achieve automatic feeding of detergents in the washing process by ingeniously connecting a built-in cleaning agent storage container with the water inlet pipeline of the washing machine. When the washing machine starts working, the detergent is automatically fed from the storage container into the water inlet pipeline, and then enters the washing drum along with the water, effectively reducing the cumbersome operation of manually feeding detergents by the user.

[0003] However, although this technology brings significant convenience, it also exposes some problems in actual application, especially during the water inlet stoppage stage of the washing machine. A portion of the detergent often remains in the detergent outlet pipe. When completing a cleaning cycle and needing to inject clean water again for the rinsing stage, the water inlet process restarted will accidentally suck the detergent remaining in the outlet pipe into the rinsing water. In this way, the rinsing water will be contaminated again due to the mixed detergent, affecting the washing effect and user experience. Therefore, how to effectively avoid the accidental mixing of detergents in the rinsing stage has become a technical problem to be solved in the current washing machine automatic detergent feeding technology. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the embodiment of the present utility model is to provide a detergent feeding device and a washing machine, which can solve the above-mentioned problems existing in the prior art.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] On the one hand, a detergent feeding device is provided, comprising:

[0007] A connector comprising a flushing box, a water inlet joint, a liquid inlet joint and a water outlet joint, the water inlet joint and the liquid inlet joint are respectively arranged on two opposite side walls of the flushing box and are aligned with each other, and the water outlet joint is arranged on the bottom wall of the flushing box; a buffer chamber is formed in the inside of the flushing box;

[0008] A water inlet pipe connected to the water inlet joint;

[0009] A detergent delivery pump comprising a liquid outlet joint, the liquid outlet joint is connected to the liquid inlet joint;

[0010] A water outlet pipe connected to the water outlet joint, for guiding the water in the buffer chamber to the washing drum.

[0011] Optionally, it also includes a duckbill valve, which is installed in the liquid inlet connector, with the liquid inlet of the duckbill valve facing the detergent delivery pump and the liquid outlet facing the water inlet connector.

[0012] Optionally, the duckbill valve includes a valve body and a first flange plate connected to the inlet side of the valve body. The first flange plate is connected to the end face of the inlet connector, and the valve body extends into the inlet connector. The end face of the outlet connector is connected to the side of the first flange plate facing away from the inlet connector, thereby achieving a sealed connection between the inlet connector, the duckbill valve, and the outlet connector.

[0013] Optionally, it also includes a first connecting sleeve, which is sleeved around the inlet connector, the first flange plate, and the outlet connector.

[0014] Optionally, a booster nozzle is also included, which is installed in the water inlet connector and the nozzle of the booster nozzle is aligned with the liquid inlet connector.

[0015] Optionally, the booster nozzle includes a nozzle body and a second flange plate connected to the inlet side of the nozzle body. The second flange plate is connected to the end face of the inlet connector. The nozzle body extends into the buffer chamber through the inlet connector. The end face of the inlet pipe is connected to the side of the second flange plate facing away from the inlet connector, thereby achieving a sealed connection between the inlet pipe, the booster nozzle, and the inlet connector.

[0016] Optionally, it also includes a second connecting sleeve, which is sleeved around the water inlet pipe, the second flange plate, and the water inlet connector.

[0017] Optionally, the nozzle body includes a spray pipe and a constricted nozzle, the constricted nozzle and the second flange plate are respectively connected to both ends of the nozzle body, and the constricted nozzle is aligned with the liquid inlet connector.

[0018] Optionally, the buffer chamber includes a flushing zone and a confluence zone arranged vertically. The confluence zone is an inverted cone shape that is larger at the top and smaller at the bottom. The water inlet connector and the liquid inlet connector are located on opposite sides of the flushing zone, and the water outlet connector is located on the bottom side of the confluence zone.

[0019] On the other hand, a washing machine is provided, including the detergent dispensing device described above.

[0020] The beneficial effects of this application are as follows: This utility model provides a detergent dispensing device that can be applied to a washing machine to achieve automatic detergent dispensing. A connector with a rinsing box is provided, with three joints connecting to the inlet pipe, the detergent delivery pump, and the outlet pipe, respectively. During water intake, tap water enters the buffer chamber through the inlet joint and rinses the inlet joint connected to the detergent delivery pump. The water then flows downwards through the outlet pipe connected to the outlet joint into the washing drum. When detergent needs to be added, the detergent delivery pump is activated to deliver detergent to the outlet joint. The detergent is then rinsed and mixed by the incoming water and flows downwards through the outlet pipe connected to the outlet joint into the washing drum, achieving both water intake and detergent addition. Importantly, because the incoming water maintains a high pressure to rinse the inlet joint, the detergent in the inlet joint can be quickly rinsed clean during a single water intake process, preventing detergent residue in the inlet joint. When rinsing with clean water again after a washing cycle, this avoids the problem of detergent contamination in the rinsing water, thus optimizing the washing effect and user experience. Attached Figure Description

[0021] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the detergent dispensing device described in the embodiments of this application;

[0023] Figure 2 This is an exploded schematic diagram of the detergent dispensing device described in the embodiments of this application;

[0024] Figure 3 This is a cross-sectional view of the detergent dispensing device described in the embodiments of this application;

[0025] Figure 4 This is a schematic diagram of the connection structure of each component in the detergent dispensing device described in the embodiments of this application;

[0026] Figure 5 This is a schematic diagram of the connector structure described in the embodiments of this application;

[0027] Figure 6 This is a cross-sectional view of the connector described in an embodiment of this application;

[0028] Figure 7 This is a schematic diagram of the structure of the duckbill valve described in the embodiments of this application;

[0029] Figure 8 This is a schematic diagram of the pressurized nozzle described in an embodiment of this application.

[0030] In the picture:

[0031] 1. Connector; 11. Rinse box; 111. Buffer chamber; 1111. Rinse area; 1112. Manifold; 12. Water inlet connector; 13. Liquid inlet connector; 14. Water outlet connector; 2. Detergent delivery pump; 21. Liquid outlet connector; 3. Water inlet pipe; 4. Duckbill valve; 41. Valve body; 42. First flange plate; 5. First connecting sleeve; 6. Booster nozzle; 61. Nozzle body; 611. Spray pipe; 612. Constricted nozzle; 62. Second flange plate; 7. Second connecting sleeve. Detailed Implementation

[0032] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the current field of home appliance technology, some washing machines are equipped with intelligent devices that automatically add detergent, aiming to improve washing convenience and efficiency. These washing machines use a built-in detergent container cleverly connected to the water inlet line to achieve automatic detergent dispensing during the washing process. When the washing machine starts, the detergent is automatically added from the container into the water inlet line, and then enters the washing drum along with the water, effectively reducing the tedious manual detergent addition by the user.

[0036] However, despite the significant convenience this technology brings, some problems have also emerged in practical applications. Particularly during the water inlet stop phase of the washing machine, some detergent often remains in the detergent outlet pipe. When a washing cycle is completed and clean water is added again for the rinsing stage, the restarted water inlet process can accidentally draw this remaining detergent into the rinsing water. This contaminates the rinsing water again due to the added detergent, affecting washing performance and user experience. Therefore, effectively preventing accidental detergent contamination during the rinsing stage has become a pressing technical challenge for current automatic detergent dispensing technology in washing machines.

[0037] To overcome the above technical problems, combined with Figures 1-3 This embodiment provides a detergent dispensing device, including:

[0038] Connector 1 includes a rinsing box 11, a water inlet connector 12, a liquid inlet connector 13, and a water outlet connector 14. The water inlet connector 12 and the liquid inlet connector 13 are respectively disposed on two opposite side walls of the rinsing box 11 and aligned with each other. The water outlet connector 14 is disposed on the bottom wall of the rinsing box 11. A buffer chamber 111 is formed inside the rinsing box 11.

[0039] Water inlet pipe 3 is connected to water inlet connector 12;

[0040] Detergent delivery pump 2 includes a liquid outlet connector 21, which is connected to the liquid inlet connector 13;

[0041] A water outlet pipe, connected to the water outlet connector 14, is used to guide the water in the buffer chamber 111 into the washing drum.

[0042] In this embodiment, a connector 1 with a rinsing box 11 is provided. The three connectors of the connector 1 are respectively connected to the water inlet pipe 3, the detergent delivery pump 2, and the water outlet pipe. During water intake, tap water enters the buffer chamber 111 through the water inlet connector 12 and rinses the liquid inlet connector 13 connected to the detergent delivery pump 2. Then, the water flows downward through the water outlet pipe connected to the water outlet connector 14 into the washing drum to achieve water intake. When detergent needs to be added, the detergent delivery pump 2 is started to deliver detergent to the liquid outlet connector 21. The detergent is then rinsed and mixed by the water intake and flows downward through the water outlet pipe connected to the water outlet connector 14 into the washing drum to achieve water intake and detergent addition. Importantly, because the water intake through the water inlet pipe 3 maintains a high pressure to rinse the liquid inlet connector 13, the detergent in the liquid inlet connector 13 can be quickly rinsed clean during one water intake process, avoiding detergent residue in the liquid inlet connector 13. When clean water is injected again for rinsing after a washing stage, the problem of detergent mixing into the rinsing water and causing pollution can be avoided, thus optimizing the washing effect and user experience.

[0043] When a washing machine starts its quick wash mode, it typically only performs one rinse cycle. This solution avoids the problem of detergent getting into the water during the rinsing process, thus ensuring the cleanliness after rinsing. Therefore, this solution is more effective in the quick wash mode.

[0044] The detergent dispensing device provided in this embodiment can be applied to a washing machine to achieve the function of automatically dispensing detergent. In specific applications, the installation height of connector 1 needs to be higher than the washing drum. The inlet pipe 3 is connected to a tap, and the outlet pipe is connected to the washing drum. When water intake is started, tap water enters the buffer chamber 111 of the rinsing box 11 through the inlet pipe 3. Then, under the action of gravity, it flows downward through the outlet pipe into the washing drum. Specifically, the diameter of the outlet pipe can be larger than the diameter of the inlet pipe 3, and the size of the outlet connector 14 is larger than that of the inlet connector 12, so that the water in the buffer chamber 111 can flow downward to the washing drum more quickly, creating a cavity inside the buffer chamber 111, allowing the water sprayed from the inlet connector 12 to more forcefully rinse the detergent in the liquid inlet connector 13. To ensure smooth downward flow of water in the buffer chamber 111, a vent can be provided at the top of the buffer chamber 111.

[0045] In one embodiment, a duckbill valve 4 is also included, which is installed in the liquid inlet connector 13, with the liquid inlet of the duckbill valve 4 facing the detergent delivery pump 2 and the liquid outlet facing the water inlet connector 12.

[0046] The duckbill valve 4 is a check valve that allows liquid to flow in only one direction. In this design, the inlet of the duckbill valve 4 faces the detergent delivery pump 2, and the outlet faces the water inlet connector 12. This ensures that detergent can only flow from the detergent delivery pump 2 to the water inlet connector 12, while water will not flow into the detergent delivery pump 2 through the duckbill valve 4. In other words, the duckbill valve 4 effectively isolates the inner cavity of the inlet connector 13 from the inner cavity of the outlet connector 21 of the detergent delivery pump 2, preventing water from flushing out the detergent from the duckbill valve 4 and the outlet connector 21. This ensures the accuracy of the detergent dosage and avoids contamination of the rinsing water caused by detergent being flushed out of the outlet connector 21.

[0047] In one embodiment, combined with Figure 4 The duckbill valve 4 includes a valve body 41 and a first flange plate 42 connected to the inlet side of the valve body 41. The first flange plate 42 is connected to the end face of the inlet connector 13, and the valve body 41 extends into the inlet connector 13. The end face of the outlet connector 21 is connected to the side of the first flange plate 42 facing away from the inlet connector 13, thereby achieving a sealed connection between the inlet connector 13, the duckbill valve 4, and the outlet connector 21.

[0048] The first flange plate 42 connects to the end face of the inlet connector 13, and the valve body 41 extends into the inlet connector 13. This design makes the connection between the duckbill valve 4 and the inlet connector 13 tighter, effectively preventing liquid leakage. The end face of the outlet connector 21 connects to the side of the first flange plate 42 facing away from the inlet connector 13. This three-layer (inlet connector 13, first flange plate 42, outlet connector 21) sealing structure further improves the sealing performance of the entire system, ensuring that the detergent will not leak during delivery and guaranteeing accurate detergent dispensing. In other words, the duckbill valve 4 design in this embodiment enhances sealing performance through flange plate connection, improves installation convenience and structural stability, and has good adaptability, providing a reliable and efficient solution for automatic detergent dispensing technology in washing machines.

[0049] In one embodiment, a first connecting sleeve 5 is further included, which is sleeved on the inlet connector 13, the first flange plate 42 and the outlet connector 21.

[0050] The first connecting sleeve 5 tightly connects the inlet connector 13, the first flange plate 42, and the outlet connector 21 together, forming a more stable overall structure. This effectively prevents relative movement or loosening between components and improves system stability. As an outer protective sleeve, the first connecting sleeve 5 provides additional sealing support for internal connections, reducing the risk of liquid leakage and ensuring the sealing and accuracy of the detergent during delivery. The first connecting sleeve 5 also provides some protection for the internal inlet connector 13, first flange plate 42, and outlet connector 21, preventing damage or interference from external objects. In other words, the first connecting sleeve 5 introduced in this embodiment not only enhances the stability and sealing performance of the overall structure but also simplifies the installation process and increases protection.

[0051] In one embodiment, reference is made to Figure 2 It also includes a booster nozzle 6, which is installed in the water inlet connector 12 and the nozzle of the booster nozzle 6 is aligned with the liquid inlet connector 13.

[0052] The booster nozzle 6 increases the pressure and speed of the water flow, making the rinsing effect on the inlet connector 13 more significant. When the water flows through the booster nozzle 6, it forms a strong water flow that directly impacts the inlet connector 13. The powerful rinsing of the booster nozzle 6 can thoroughly clean the inlet connector 13, preventing detergent residue from contaminating the water for the next rinse. At the same time, this helps to ensure that the amount of detergent added is accurate each time, improving the washing effect.

[0053] In one embodiment, reference is made to Figure 3The booster nozzle 6 includes a nozzle body 61 and a second flange plate 62 connected to the inlet side of the nozzle body 61. The second flange plate 62 is connected to the end face of the inlet connector 12. The nozzle body 61 extends into the buffer chamber 111 through the inlet connector 12. The end face of the inlet pipe 3 is connected to the side of the second flange plate 62 facing away from the inlet connector 12, thereby achieving a sealed connection between the inlet pipe 3, the booster nozzle 6, and the inlet connector 12.

[0054] The second flange plate 62 connects to the end face of the water inlet connector 12. The nozzle body 61 extends into the buffer chamber 111 through the water inlet connector 12. This design ensures a tight connection between the pressurizing nozzle 6 and the water inlet connector 12, effectively preventing water leakage. The end face of the water inlet pipe 3 connects to the side of the second flange plate 62 facing away from the water inlet connector 12, forming a three-layer sealing structure between the water inlet pipe 3, the pressurizing nozzle 6, and the water inlet connector 12. This further improves the sealing performance of the entire system and ensures stable water flow during the pressurization process. The pressurizing nozzle 6 extends into the buffer chamber 111, ensuring that the nozzle is closer to the liquid inlet connector 13, reducing pressure loss and improving the efficiency and effectiveness of rinsing the liquid inlet connector 13.

[0055] In one embodiment, a second connecting sleeve 7 is further included, which is sleeved on the outside of the water inlet pipe 3, the second flange plate 62 and the water inlet connector 12.

[0056] The second connecting sleeve 7 tightly connects the inlet pipe 3, the second flange plate 62, and the inlet connector 12 together, forming a stable integrated structure. This design effectively prevents relative movement or loosening between components, improves connection stability, and ensures the normal operation of the system under high-pressure water flow. As an outer protective sleeve, the second connecting sleeve 7 provides additional sealing support for the internal connection points, effectively preventing water leakage and ensuring stable water flow transmission in the booster nozzle 6, thereby improving the overall sealing performance of the system. Furthermore, the second connecting sleeve 7 provides a certain degree of protection for the internal inlet pipe 3, the second flange plate 62, and the inlet connector 12, preventing damage or interference from external objects and thus extending their service life.

[0057] In one embodiment, the nozzle body 61 includes a nozzle pipe 611 and a constricted nozzle 612. The constricted nozzle 612 and the second flange plate 62 are respectively connected to the two ends of the nozzle body 61, and the constricted nozzle 612 is aligned with the liquid inlet connector 13.

[0058] The nozzle 611 is designed to guide the water flow, while the constricted nozzle 612 can focus and accelerate the water flow to form a high-pressure water jet. This design allows the water flow to be effectively pressurized when passing through the nozzle body 61, thereby impacting the inlet connector 13 at a higher speed and pressure, thus optimizing the rinsing effect.

[0059] In one embodiment, the buffer chamber 111 includes a flushing area 1111 and a confluence area 1112 arranged vertically. The confluence area 1112 is an inverted cone shape that is larger at the top and smaller at the bottom. The water inlet connector 12 and the liquid inlet connector 13 are located on two opposite sides of the flushing area 1111, and the water outlet connector 14 is located on the bottom side of the confluence area 1112.

[0060] The rinsing zone 1111, as the main area where water comes into contact with the inlet connector 13, is designed to be spacious enough to fully cover the inlet connector 13, ensuring that residual detergent and dirt are effectively rinsed away. The inverted cone-shaped converging zone 1112 design allows the water to gradually converge as it flows downwards, naturally guiding the water downwards and allowing it to flow smoothly out through the outlet pipe, keeping the buffer chamber 111 clean after the water intake is complete.

[0061] On the other hand, a washing machine is provided, including the detergent dispensing device described above.

[0062] In practical applications, connector 1 needs to be installed at a height higher than the washing drum. The inlet pipe 3 is connected to the tap water faucet, and the outlet pipe is connected to the washing drum. This detergent dispensing device can complete the water intake and automatic detergent dispensing of the washing machine.

[0063] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0064] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0065] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0066] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A detergent dispensing device, characterized in that, include: The connector (1) includes a rinsing box (11), a water inlet connector (12), a liquid inlet connector (13), and a water outlet connector (14). The water inlet connector (12) and the liquid inlet connector (13) are respectively disposed on two opposite side walls of the rinsing box (11) and aligned with each other. The water outlet connector (14) is disposed on the bottom wall of the rinsing box (11). A buffer chamber (111) is formed inside the rinsing box (11). Water inlet pipe (3) is connected to the water inlet connector (12); Detergent delivery pump (2) includes a liquid outlet connector (21) connected to the liquid inlet connector (13); The water outlet pipe is connected to the water outlet connector (14) and is used to guide the water in the buffer chamber (111) into the washing drum.

2. The detergent dispensing device according to claim 1, characterized in that, It also includes a duckbill valve (4), which is installed in the liquid inlet connector (13), with the liquid inlet of the duckbill valve (4) facing the detergent delivery pump (2) and the liquid outlet facing the water inlet connector (12).

3. The detergent dispensing device according to claim 2, characterized in that, The duckbill valve (4) includes a valve body (41) and a first flange plate (42) connected to the inlet side of the valve body (41). The first flange plate (42) is connected to the end face of the inlet connector (13). The valve body (41) extends into the inlet connector (13). The end face of the outlet connector (21) is connected to the side of the first flange plate (42) facing away from the inlet connector (13), thereby achieving a sealed connection between the inlet connector (13), the duckbill valve (4), and the outlet connector (21).

4. The detergent dispensing device according to claim 3, characterized in that, It also includes a first connecting sleeve (5), which is sleeved on the inlet connector (13), the first flange plate (42) and the outlet connector (21).

5. The detergent dispensing device according to claim 1, characterized in that, It also includes a booster nozzle (6), which is installed in the water inlet connector (12) and the nozzle of the booster nozzle (6) is aligned with the liquid inlet connector (13).

6. The detergent dispensing device according to claim 5, characterized in that, The booster nozzle (6) includes a nozzle body (61) and a second flange plate (62) connected to the inlet side of the nozzle body (61). The second flange plate (62) is connected to the end face of the inlet connector (12). The nozzle body (61) extends into the buffer chamber (111) through the inlet connector (12). The end face of the inlet pipe (3) is connected to the side of the second flange plate (62) facing away from the inlet connector (12), thereby achieving a sealed connection between the inlet pipe (3), the booster nozzle (6), and the inlet connector (12).

7. The detergent dispensing device according to claim 6, characterized in that, It also includes a second connecting sleeve (7), which is sleeved on the outside of the water inlet pipe (3), the second flange plate (62) and the water inlet connector (12).

8. The detergent dispensing device according to claim 6, characterized in that, The nozzle body (61) includes a nozzle pipe (611) and a constricted nozzle (612). The constricted nozzle (612) and the second flange plate (62) are respectively connected to the two ends of the nozzle body (61). The constricted nozzle (612) is aligned with the liquid inlet connector (13).

9. The detergent dispensing device according to claim 1, characterized in that, The buffer chamber (111) includes a flushing zone (1111) and a confluence zone (1112) arranged vertically. The confluence zone (1112) is an inverted cone shape that is larger at the top and smaller at the bottom. The water inlet connector (12) and the liquid inlet connector (13) are located on opposite sides of the flushing zone (1111), and the water outlet connector (14) is located on the bottom side of the confluence zone (1112).

10. A washing machine, characterized in that, Includes the detergent dispensing device as described in any one of claims 1-9.

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