Additive feeding device and clothes treatment equipment

Abstract

The invention discloses an additive feeding device, belongs to the field of clothes treatment equipment, solves the problem of additive waste, and adopts the technical scheme that the additive feeding device mainly comprises a container and a liquid suction pipe, the container is provided with a liquid outlet valve, the liquid outlet valve comprises a valve body and a valve element, the valve body is provided with a valve cavity, and a liquid outlet is formed in the side wall of the valve cavity; the valve cavity is provided with an inserting opening in the rear end of the valve body, a liquid suction channel is formed in the liquid suction pipe, a liquid suction opening communicated with the liquid suction channel is formed in the side wall of the liquid suction pipe, the front end of the liquid suction pipe is inserted into the valve cavity from the inserting opening and pushes the valve element to enable the liquid suction opening to be communicated with the liquid outlet in an aligned mode so that the liquid outlet valve can be opened, and the periphery of the liquid suction pipe is matched with the inner wall of the valve cavity in a sealed mode. The end face edge of the front end of the liquid suction pipe is attached to the end face edge of the rear end of the valve element, so that additives are not prone to flowing into the space between the end face of the front end of the liquid suction pipe and the end face of the rear end of the valve element. The additive waste is mainly reduced, and the utilization rate of the additive is improved. The invention further discloses clothes treating equipment.

Description

Technical Field

[0001] The present invention relates to the field of clothing processing equipment, in particular to an additive dispensing device and clothing processing equipment. Background Art

[0002] With the improvement of people's living standards, clothing processing equipment, as one of the indispensable household appliances in modern families, provides great convenience for people's daily life.

[0003] When treating clothes with traditional clothing treatment equipment, users are required to judge the dosage of additives required based on experience before starting the treatment, which increases the workload of users. In addition, during the manual addition process, improper control of the dosage may result in too little additive and inadequate treatment, or too much additive and waste.

[0004] The prior art CN116254682A discloses an automatic dispensing system, including a detergent box, a detection device and a negative pressure generating device, wherein the detergent box stores a laundry treatment agent, the detection device includes a push rod and a main body, the main body is provided with a mounting surface and an outer surface, the mounting surface and the outer surface are inclined surfaces and are arranged oppositely, the mounting surface and the outer surface form a liquid inlet cavity, the push rod is vertically mounted on the mounting surface and communicates with the liquid inlet cavity, the detergent box and the push rod are plugged so that the laundry treatment agent in the detergent box flows into the liquid inlet cavity, the negative pressure generating device pumps the laundry treatment agent in the detection device into the inner drum, and when the laundry treatment agent in the detergent box is exhausted, the detection device alarms. It is also specifically disclosed that the push rod is a hollow structure, and a flow channel for the laundry treatment agent to flow is formed inside the push rod. When in use, the push rod contacts the sealing rod, and the sealing rod moves, so that the end of the sealing rod is separated from the liquid outlet, so that the laundry treatment agent in the storage cavity flows along the push rod to the detection cavity of the detection device.

[0005] Therefore, in the prior art CN116254682A, when the clothes treating agent in the storage chamber is used, the sealing rod is pushed open by the push rod, so that the liquid outlet is connected with the flow channel in the push rod to discharge the clothes treating agent. When the clothes treating agent is not needed, the push rod is reset. Figure 4 It can be clearly seen that the end of the push rod has a notch for the clothing treatment agent to enter the flow channel. When the push rod and the sealing rod are reset, the gap between the push rod and the sealing rod is increased due to the notch at the end of the push rod. The clothing treatment agent in the flow channel can easily enter between the sealing rod and the push rod through the notch at the end of the push rod, resulting in more clothing treatment agent being retained between the push rod and the sealing rod, causing waste of clothing treatment agent. Summary of the invention

[0006] The purpose to be achieved by the present invention is to provide an additive dispensing device and a clothing processing device to solve the problem of additive waste, reduce additive waste, and improve the utilization rate of additives.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an additive delivery device, including a container and a pipette, the container is provided with a liquid outlet valve, the liquid outlet valve includes a valve body and a valve core, the valve body has a valve cavity for the valve core to reciprocate, the side wall of the valve cavity is provided with a liquid outlet connected with the inner cavity of the container, the valve cavity is provided with an insertion interface at the rear end of the valve body, the liquid pipette has a liquid suction channel, the side wall of the liquid pipette is provided with a liquid suction port connected with the liquid suction channel, the front end of the liquid pipette is inserted into the valve cavity from the insertion interface, and the valve core is pushed to align the liquid suction port with the liquid outlet and connect to open the liquid outlet valve, the outer periphery of the liquid pipette is sealed with the inner wall of the valve cavity, the end face edge of the front end of the liquid pipette is in contact with the end face edge of the rear end of the valve core, so that additives are not easily flowed in between the end face of the front end of the liquid pipette and the end face of the rear end of the valve core.

[0008] After adopting the above technical scheme, the present invention has the following advantages: when it is necessary to use additives, a pipette is installed on the container containing the additives, and during the installation process, the front end of the pipette is extended into the valve cavity from the plug interface at the rear end of the valve cavity, and the pipette pushes the valve core of the liquid outlet valve toward the inner cavity of the container, so that the suction port on the pipette is aligned and connected with the liquid outlet on the side wall of the valve cavity, so that the additive in the inner cavity of the container can be taken out for use. Compared with the prior art CN116254682A, the suction port on the pipette is arranged on the side wall of the pipette. When the container is not installed, the valve core closes the liquid outlet on the valve body to prevent the additive from entering between the outer peripheral wall of the valve core and the inner peripheral wall of the valve cavity from the liquid outlet, or even overflowing from the plug interface at the end of the valve cavity. After the container is installed in place, the suction port The suction port on the side wall of the liquid tube is aligned and connected with the liquid outlet port on the side wall of the valve body, and the additive directly enters the suction channel from the suction port on the side wall of the suction tube, and the suction tube is sealed with the inner wall of the valve cavity, making it difficult for the additive to enter between the suction tube and the inner wall of the valve cavity during the liquid extraction process, thereby greatly reducing the possibility of the additive entering the rear end face of the valve core and the front end face of the suction tube, thereby reducing the additive being retained between the end face at the front end of the suction tube and the end face at the rear end of the valve core; when the front end of the suction tube abuts the rear end of the valve core, the edge of the end face at the front end of the suction tube fits the edge of the end face at the rear end of the valve core, further reducing the additive from entering between the end faces in contact with the valve core, thereby reducing the possibility of the additive being retained between the liquid outlet valve and the suction tube, thereby improving the utilization rate of the additive.

[0009] Furthermore, the end surface at the front end of the liquid suction tube is fitted with the end surface at the rear end of the valve core.

[0010] By adopting the above-mentioned technical solution, when the pipette contacts the valve core, the end face at the front end of the pipette fits with the end face at the rear end of the valve core, thereby reducing the entry of additives into the space between the valve core and the pipette. At the same time, the fitting of the end faces reduces the gap between the pipette and the valve core, further reducing the accumulation space of additives and reducing the retention of additives.

[0011] Furthermore, the gap between the outer edge of the end surface of the front end of the pipette and the inner wall surface of the valve cavity does not exceed 1 mm.

[0012] By adopting the above-mentioned technical solution, the gap between the outer edge of the end face of the front end of the pipette and the inner wall of the valve cavity is set to no more than 1 mm. Since the additive has a certain viscosity, the smaller gap hinders the flow of the additive between the outer peripheral wall of the pipette and the inner wall of the valve cavity. Without affecting the pipette pushing the valve core in the valve cavity, the waste of additive caused by the additive entering between the front end face of the pipette and the rear end face of the valve core is reduced.

[0013] Furthermore, the gap between the outer edge of the end surface at the rear end of the valve core and the inner wall surface of the valve cavity does not exceed 1 mm.

[0014] By adopting the above technical solution, the gap between the outer edge of the end surface at the rear end of the valve core and the inner wall surface of the valve cavity is also set to no more than 1 mm, reducing the possibility of additives overflowing from the outer edge of the end surface at the rear end of the valve core.

[0015] Furthermore, a first sealing member is provided on the outer periphery of the liquid suction tube at both axial sides of the liquid suction port, and the first sealing member contacts and seals with the inner wall surface of the valve cavity.

[0016] By adopting the above-mentioned technical solution, a first seal is provided on both sides of the liquid suction port of the pipette. The sealing of the first seal prevents the additive at the liquid suction port from overflowing along the axial direction of the pipette to the wall surface of the outer peripheral wall of the pipette. The first seal improves the sealing effect between the outer peripheral wall of the pipette and the valve cavity, and reduces the waste of additives caused by the accumulation of additives between the outer peripheral wall of the pipette and the inner wall of the valve cavity.

[0017] Furthermore, a second sealing member is provided on the outer peripheral side of the valve core, and an axial distance from the second sealing member to the end face at the rear end of the valve core is smaller than an axial distance from the liquid outlet to the end face at the rear end of the valve core when the valve core closes the liquid outlet valve.

[0018] By adopting the aforementioned technical solution, the second seal improves the sealing effect between the outer peripheral wall of the valve core and the inner wall of the valve cavity. By setting the circumferential distance from the second seal to the end face of the rear end of the valve core to be smaller than the axial distance from the valve core to the end face of the rear end of the valve core when the valve core is closed to the liquid outlet, when the valve core closes the liquid outlet, the second seal is on the rear side of the liquid outlet, thereby preventing additives from entering from the liquid outlet between the outer peripheral wall of the valve core and the inner wall of the valve cavity and overflowing, thereby avoiding waste of additives.

[0019] Furthermore, a guide base is provided at the front of the valve body, and the front of the valve core passes through the guide base to fit and reciprocate relative to the guide base.

[0020] By adopting the above-mentioned technical solution, when the pipette pushes the rear end of the valve core, the front end of the valve core is supported by the guide base to prevent the valve core from deflecting during the pushing process, thereby preventing the additive from overflowing from the outer peripheral wall of the rear end of the valve core and the inner wall of the valve cavity to between the rear end of the valve core and the front end of the pipette.

[0021] Furthermore, the guide base is provided with a positioning step, and the front part of the valve core is provided with a positioning convex rib, and the positioning convex rib abuts against the positioning step after the valve core closes the liquid outlet.

[0022] By adopting the above-mentioned technical solution, during the process of resetting the valve core, the positioning rib abuts against the positioning step, thereby preventing the front end of the valve core from moving completely into the valve cavity, causing the front end of the valve core to deflect relative to the rear end of the valve core in the absence of support, thereby preventing the sealing effect between the outer peripheral wall at the rear end of the valve core and the valve cavity from being affected, causing the additive to overflow from the rear end of the valve core.

[0023] Furthermore, an elastic member is sleeved on the outer side of the valve core to keep the valve core in the tendency to close the liquid outlet valve, the rear end of the elastic member abuts against the valve core for positioning, and the front end of the elastic member abuts against the guide base for positioning.

[0024] By adopting the above-mentioned technical solution, when the valve core closes the liquid outlet, the tendency of the elastic member to push the liquid outlet valve to close drives the valve core to reset, so that the liquid outlet valve can be quickly closed after the pipette exits the valve cavity, thereby reducing the possibility that the additive will flow out of the liquid outlet and the valve cavity when the valve core is closing the liquid outlet after the pipette exits.

[0025] In order to achieve the above-mentioned purpose, the present invention also adopts the following technical solution: a clothing processing device, including a device body and an additive delivery device arranged on the device body.

[0026] By adopting the above-mentioned technical solution, an additive delivery device is installed on the equipment body of the clothing processing equipment to facilitate the removal and use of the additives, while reducing the waste of the additives in the container containing the additives and improving the utilization rate of the additives. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of the overall structure of an additive delivery device of the present invention;

[0029] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0030] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0031] Figure 4 This is a schematic diagram of the state in which the valve core in the present invention closes the liquid outlet;

[0032] Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle;

[0033] Figure 6 For the present invention Figure 4 Enlarged view of center C. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] The terms "first", "second", etc. (if any) in the specification and claims of the present invention are used to distinguish similar objects, rather than to describe a specific order or sequence. Even if "second" is used to distinguish before a certain technical feature, it does not necessarily indicate that "first" is present. It should be understood that in the present invention, "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. It should be understood that in the present invention, "multiple" refers to two or more. "And / or" is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. "Containing X, Y and Z", "Containing X, Y, Z" means that X, Y, and Z are all included, "Containing X, Y or Z" means that one of X, Y, and Z is included, and "Containing X, Y and / or Z" means that any one, any two, or three of X, Y, and Z are included.

[0036] The technical solution of the present invention is described in detail with specific embodiments below. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0037] like Figure 1 and Figure 2As shown, the present invention provides an additive delivery device, including a container 1 and a liquid suction tube 2. The container 1 is provided with a liquid outlet valve 3. To facilitate the installation of the liquid outlet valve 3, the container 1 is provided with a mounting through hole 11. The liquid outlet valve 3 includes a valve body 31 and a valve core 32. The valve body 31 is fixedly connected to the container 1, and the valve body 31 is installed in the mounting through hole 11. The valve body 31 is provided with a valve cavity 311. The valve core 32 reciprocates in the valve cavity 311. The side wall of the valve cavity 311 is provided with a liquid outlet 312 connected to the inner cavity of the container 1. The liquid outlet 312 is opened or closed by the reciprocating movement of the valve core 32. When the container 1 is not loaded, the valve core 32 keeps closing the liquid outlet 312 to avoid the additive flowing outward from the liquid outlet 312 and causing waste of the additive.

[0038] like Figure 2 and Figure 3 As shown, the pipette 2 has a pipette channel 23, and the side wall of the pipette 2 is provided with a pipette port 21 connected to the pipette channel 23. The valve cavity 311 is provided with an insertion port 313 at the front end of the valve body 31. During the installation of the container 1, the front end of the pipette 2 is inserted into the valve cavity 311 from the insertion port 313 and pushes the valve core 32. After the container 1 is installed in place, the pipette port 21 is aligned and connected with the liquid outlet 312, so that the liquid outlet valve 3 is opened, so that the additive in the container 1 enters the pipette port 21 from the liquid outlet 312, and finally enters the pipette channel 23 and flows out for use. Compared with the prior art CN116254682A, the liquid suction port 21 on the liquid suction tube 2 is arranged on the side wall of the liquid suction tube 2, and the liquid outlet 312 is located on the side wall of the valve body 31, thereby reducing the possibility of additives accumulating in the contact portion between the valve core 32 and the liquid suction tube 2, thereby reducing the possibility of additives being retained between the valve core 32 and the liquid suction tube 2, and at the same time avoiding the additives in the liquid suction channel 23 of the liquid suction tube 2 from overflowing to the contact portion between the valve core 32 and the end face of the liquid suction tube 2. In addition, the outer peripheral wall of the pipette 2 is sealed with the inner wall of the valve cavity 311; when the pipette 2 contacts and pushes the valve core 32, the end face edge at the front end of the pipette 2 fits with the end face edge at the rear end of the valve core 32, and the gap between the front end of the pipette 2 and the rear end of the valve core 32 is reduced by the fitting of the end face edges, thereby reducing the possibility of additives flowing into and accumulating between the end face at the front end of the pipette 2 and the end face at the rear end of the valve core 32, thereby reducing the waste of additives due to the accumulation of additives between the end face at the front end of the pipette 2 and the end face at the rear end of the valve core 32, and improving the utilization rate of additives.

[0039] In order to further increase the difficulty of the additive flowing into the end surface of the front end of the liquid suction tube 2 and the end surface of the rear end of the valve core 32, as shown in FIG. Figure 3 As shown, the end surface of the front end of the pipette 2 fits with the end surface of the rear end of the valve core 32, thereby reducing the gap between the end surface of the front end of the pipette 2 and the end surface of the rear end of the valve core 32, thereby reducing the size of the space where additives can accumulate.

[0040] To increase the difficulty of the additive entering between the front end face of the liquid suction pipe 2 and the rear end face of the valve core 32, the clearance between the outer edge of the front end face of the liquid suction pipe 2 and the inner wall surface of the valve cavity 311 does not exceed 1 mm. Since the additive has a certain viscosity, the small clearance hinders the flow of the additive with a certain viscosity. Without affecting the movement of the liquid suction pipe 2 in the valve cavity 311 to push the valve core 32, the possibility of the additive entering between the front end face of the liquid suction pipe 2 and the rear end face of the valve core 32 is greatly reduced, thereby reducing the waste of the additive and improving the utilization rate of the additive.

[0041] In another embodiment, the clearance between the outer edge of the rear end face of the valve core 32 and the inner wall surface of the valve cavity 311 does not exceed 1 mm, thereby reducing the possibility of the additive overflowing between the outer edge of the rear end face of the valve core 32 and the inner wall surface of the valve cavity 311, ensuring the sealing between the valve core 32 and the inner wall surface of the valve cavity 311, and at the same time not affecting the reciprocating movement of the valve core 32 in the valve cavity 311.

[0042] To further increase the difficulty of the additive entering between the rear end of the valve core 32 and the front end of the liquid suction pipe 2, as Figure 3 shown, two first sealing members 22 are provided on the outer periphery of the liquid suction pipe 2. The two first sealing members 22 are axially distributed on both sides of the liquid suction port 21 along the liquid suction pipe 2. By providing the first sealing members 22, the difficulty of the additive overflowing from both sides of the liquid suction port 21 to the outer peripheral wall of the liquid suction pipe 2 is increased, thereby reducing the waste of the additive. In addition, after the first sealing members 22 enter the valve cavity 311, the first sealing members 22 are in contact with the inner wall surface of the valve cavity 311 for sealing, so as to closely cooperate with the sealing between the liquid suction pipe 2 and the valve cavity 311, improve the sealing effect between the outer peripheral wall of the liquid suction pipe 2 and the inner wall of the valve cavity 311, and further increase the difficulty of the additive entering between the rear end of the valve core 32 and the front end of the liquid suction pipe 2.

[0043] To improve the sealing between the outer peripheral wall of the valve core 32 and the inner wall surface of the valve cavity 311 after the valve core 32 closes the liquid outlet 312, as Figure 4 and Figure 5 , a second sealing member 321 is provided on the outer peripheral side of the valve core 32. The axial distance from the second sealing member 321 to the rear end face of the valve core 32 is S1. After the valve core 32 closes the liquid outlet 312, the axial distance from the liquid outlet 312 to the rear end face of the valve core 32 is S2, and S1 < S2. When the valve core 32 closes the liquid outlet 312, the second sealing member 321 is on the rear side of the liquid outlet 312. The second sealing member 321 improves the sealing between the outer peripheral wall of the valve core 32 and the inner wall surface of the valve cavity 311, thereby preventing the additive from entering between the outer peripheral wall of the valve core 32 and the inner wall of the valve cavity 311 at the liquid outlet 312 and then overflowing from the insertion port 313, avoiding the waste of the additive.

[0044] To improve the stability of the reciprocating movement of the valve core 32 in the valve cavity 311, as Figure 4 and Figure 6 As shown, a guide base 4 is provided at the front end of the valve body 31, and the front part of the valve core 32 passes through the guide base 4. The outer peripheral wall of the front end of the valve core 32 contacts the inner wall surface of the guide base 4, so that the valve core 32 is circumferentially positioned with the valve body 31 at two positions during the reciprocating motion, thereby preventing the valve core 32 from deflecting during the reciprocating motion and affecting the sealing between the rear end of the valve core 32 and the inner wall surface of the valve cavity 311, thereby preventing the additive from overflowing from the rear end of the valve core 32 to the rear end of the valve cavity 311.

[0045] To prevent the valve core 32 from being separated from the guide base 4 when the valve core 32 moves toward the rear end of the valve body 31 to close the liquid outlet 312, as shown in FIG. Figure 6 As shown, a positioning step 41 is provided on the front side of the guide base 4, and a positioning rib 323 is provided on the front part of the valve core 32. When the valve core 32 closes the liquid outlet 312, the positioning rib 323 abuts against the positioning step 41, thereby preventing the front end of the valve core 32 from moving into the valve cavity 311. Due to the lack of support at the front end of the valve core 32, the rear end of the valve core 32 is prevented from being deflected and affecting the sealing effect between the rear end of the valve core 32 and the inner wall of the valve cavity 311, thereby preventing the additive from overflowing from the rear end of the valve core 32.

[0046] In order to facilitate the valve core 32 to close the liquid outlet 312, as shown in FIG. Figure 5 and Figure 6 As shown, the outer side of the valve core 32 is sleeved with an elastic member 33 that keeps the valve core 32 closing the liquid outlet valve 3. The outer peripheral wall of the rear end of the valve core 32 is provided with abutting ribs 322. The rear end of the elastic member 33 abuts against the front end surface of the abutting ribs 322 to position the rear end of the elastic member 33. The rear end surface of the guide base 4 is provided with a forwardly recessed accommodating cavity 42. The front end of the elastic member 33 extends into the accommodating cavity 42 and abuts against the guide base 4. The elastic member 33 is positioned by abutting against the ribs 322 and the accommodating cavity 42. The rear end and the front end of the elastic member 33 improve the stability of the elastic member 33. During the process of the pipette 2 pushing the valve core 32 to move until the suction port 21 is aligned and connected with the liquid outlet 312, the elastic member 33 is compressed, so that the elastic member 33 has a tendency to keep the liquid outlet valve 3 closed during the liquid extraction process. When the pipette 2 withdraws from the valve cavity 311, the elastic member 33 drives the rear end of the valve core 32 to close the liquid outlet 312 in time, thereby reducing the waste of additives caused by the connection between the liquid outlet 312 and the plug interface 313.

[0047] In another embodiment, the present invention further provides a clothing processing device, including a device body and an additive delivery device arranged on the device body, which is convenient for taking out and using additives, while reducing the waste of additives in the container 1 containing the additives and improving the utilization rate of the additives.

[0048] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. An additive delivery device, comprising a container and a liquid pipette, wherein the container is provided with a liquid outlet valve, the liquid outlet valve comprising a valve body and a valve core, the valve body having a valve cavity for the valve core to reciprocate, the side wall of the valve cavity being provided with a liquid outlet connected to the inner cavity of the container, the valve cavity being provided with an insertion port at the rear end of the valve body, the liquid pipette having a liquid suction channel, the side wall of the liquid pipette being provided with a liquid suction port connected to the liquid suction channel, the front end of the liquid pipette being inserted into the valve cavity from the insertion port, and the valve core being pushed to align the liquid suction port with the liquid outlet and connect them to open the liquid outlet valve, characterized in that: The outer periphery of the pipette is sealed with the inner wall of the valve cavity, and the end face edge of the front end of the pipette fits with the end face edge of the rear end of the valve core, so that additives are not easy to flow between the end faces of the front end of the pipette and the rear end of the valve core.

2. The additive dosing device according to claim 1, characterized in that: The end surface at the front end of the liquid suction tube is fitted with the end surface at the rear end of the valve core.

3. The additive dosing device according to claim 1, characterized in that: The gap between the outer edge of the end surface of the front end of the pipette and the inner wall surface of the valve cavity does not exceed 1 mm.

4. The additive dosing device according to claim 1, characterized in that: The gap between the outer edge of the end surface at the rear end of the valve core and the inner wall surface of the valve cavity does not exceed 1 mm.

5. The additive dosing device according to claim 1, characterized in that: The outer periphery of the liquid suction tube is provided with first sealing members on both axial sides of the liquid suction port, and the first sealing members are in contact and sealed with the inner wall surface of the valve cavity.

6. The additive dosing device according to claim 1, characterized in that: A second sealing member is provided on the outer peripheral side of the valve core, and the axial distance from the second sealing member to the end face of the rear end of the valve core is smaller than the axial distance from the liquid outlet to the end face of the rear end of the valve core when the valve core closes the liquid outlet valve.

7. The additive dosing device according to claim 1, characterized in that: A guide base is arranged at the front of the valve body, and the front of the valve core passes through the guide base and reciprocates relative to the guide base.

8. The additive dosing device according to claim 7, characterized in that: The guide base is provided with a positioning step, and the front part of the valve core is provided with a positioning convex rib, and the positioning convex rib abuts against the positioning step after the valve core closes the liquid outlet.

9. The additive dosing device according to claim 7, characterized in that: The outer side of the valve core is sleeved with an elastic member which enables the valve core to maintain the tendency to close the liquid outlet valve. The rear end of the elastic member abuts against the valve core for positioning, and the front end of the elastic member abuts against the guide base for positioning.

10. A clothes processing device, characterized in that: The invention comprises an equipment body and an additive dispensing device as claimed in any one of claims 1 to 9 arranged on the equipment body.

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