A plug structure, a liquid storage box and an automatic additive dispensing device

Abstract

The present invention discloses a plug structure, a liquid storage box and an automatic additive dispensing device. The plug structure includes a plug body with a first diversion channel therein. An insertion port is formed on the plug body, and a sealing plug is arranged inside the plug body near the insertion port side. A seal fitting hole capable of elastic deformation is provided at the position of the sealing plug corresponding to the insertion port. The seal fitting hole communicates the insertion port and the first diversion channel, and a valve body capable of closing or opening the seal fitting hole is arranged inside the plug body. The liquid storage box is provided with an installation port, and the above plug structure is hermetically installed at the installation port. The present invention realizes the self-sealing of the liquid storage box through the close cooperation between the sealing plug and the valve body. Compared with directly plugging the insertion port by the valve body, the sealing effect is better. Moreover, through the provided seal fitting hole capable of elastic deformation, the phenomenon of liquid leakage during the plugging process of the plug structure can be effectively avoided.

Description

Technical Field

[0001] The present invention belongs to the field of self-sealing plug structures. Specifically, it relates to a plug structure applicable to a cartridge-type liquid storage box, and also relates to a liquid storage box equipped with the above plug structure, and further relates to an automatic additive dispensing device equipped with the above liquid storage box. Background Art

[0002] Currently, the external automatic additive dispensing device for clothes is a new product and is widely loved by the target audience. The existing additive dispensing device is arranged on the water inlet pipeline between the tap water joint and the water inlet valve of the washing machine. The additive dispensing device includes a dispensing pump or a Venturi tube and a liquid storage box that is communicated with the Venturi tube through a liquid extraction pipeline. The additive in the liquid storage box is sucked out through the dispensing pump or the Venturi tube and the liquid extraction pipeline and is dispensed into the water inlet pipeline, and then is put into the washing tub along with the water inlet of the washing machine.

[0003] The invention patent with the application number 201610908912.8 discloses an automatic washing detergent dispensing device for a washing machine, which includes a water injection tank, a dispenser box arranged in the water injection tank, a constant volume box arranged at the rear of the water injection tank, an extraction mechanism for guiding the detergent into the constant volume box, a liquid storage box communicated with the constant volume box, a flushing water inlet, and a flushing pipeline for discharging the liquid in the constant volume box. The liquid storage box is arranged in the dispenser box, and a check valve that is communicated when closed and can be closed to prevent liquid from flowing out when opened is arranged between the liquid storage box and the constant volume box. The check valve includes a valve chamber arranged in the check valve mounting hole and a liquid outlet. The valve chamber is communicated with the inside of the liquid storage box through a suction pipe on the side of the valve chamber. A spring and a valve core that blocks the liquid outlet by moving back under the action of the spring are arranged in the valve chamber.

[0004] When the dispenser box is pushed into the water injection tank, the end of the liquid guide pipe extends into the check valve mounting hole, and the push rod presses against the valve core to leave the liquid outlet, realizing the communication between the liquid guide pipe and the valve chamber and the suction pipe, and the communication between the liquid storage box and the constant volume box; when the dispenser box is opened, the constant volume box and the liquid storage box are disconnected, the liquid guide pipe is separated from the check valve, and the valve core is pressed against the liquid outlet position under the action of the spring force, realizing the sealing of the liquid outlet, and the check valve seals the liquid storage box to prevent the liquid from flowing out of the liquid storage box.

[0005] Since the valve core of the liquid storage box disclosed in the above application directly blocks the liquid outlet to achieve sealing, the sealing performance between the valve core and the liquid outlet is not good, resulting in the easy leakage of the additive in the liquid storage box from the gap between the valve core and the liquid outlet. In addition, many existing liquid storage boxes adopt a plug-in structure to guide the additive in the liquid storage box to the liquid extraction pipeline, and it is very easy to have the phenomenon of liquid leakage during the plug-in process, causing a very bad experience.

[0006] In view of this, the present invention is specifically proposed. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a plug structure. The present invention realizes the self-sealing of the liquid storage box through the tight fit between the sealing plug and the valve body. Compared with directly plugging the insertion port by the valve body, the sealing effect is better, and through the provided elastically deformable sealing mating hole, the phenomenon of liquid leakage during the plugging process of the plug structure can be effectively avoided.

[0008] To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0009] A plug structure includes a plug body with a first diversion channel inside. An insertion port is provided on the plug body, and a sealing plug is arranged on the plug body near the side of the insertion port.

[0010] At the position corresponding to the insertion port of the sealing plug, there is an elastically deformable sealing mating hole, and the sealing mating hole communicates with the insertion port and the first diversion channel. A valve body that can close or open the sealing mating hole is arranged inside the plug body.

[0011] Further, the sealing plug includes a plug body and a sealing lip connected to the side of the plug body near the valve body. A sealing mating hole is provided at the position corresponding to the insertion port on the plug body, and the sealing lip is in contact sealing with the valve body.

[0012] The sealing lip is formed by smoothly transitioning and extending outward from the edge of the sealing mating hole. The sealing lip is in an outwardly expanding shape that gradually expands outward. Under the action of an elastic resetting member, the valve body is tightly fitted on the inner wall surface of the sealing lip and blocks the sealing mating hole.

[0013] Preferably, the sealing plug is made of rubber material.

[0014] Further, the plug body has a cylindrical shell. The inside of the plug body is hollow to form the first diversion channel. One end of the plug body is provided with a closed end cover, and the other end is open. The insertion port is provided on the closed end cover.

[0015] The plug body is extruded and limited inside the closed end cover. A contact seal is formed by closely fitting the outer wall surface of the plug body and the inner wall surface of the closed end cover. The sealing mating hole is an elastically deformable mating hole column opened along the axial direction of the plug body corresponding to the insertion port.

[0016] Preferably, the inner diameter of the mating hole column gradually increases from the side of the insertion port towards the direction away from the insertion port, or the middle of the mating hole column is narrowed and both ends gradually expand outward.

[0017] Further, an end edge of the plug body near the closed end cover is turned outwards and extended to form a first connecting flange, and an end edge of the closed end cover is turned inwards and extended to form a second connecting flange;

[0018] The first connecting flange is limited and clamped inside the second connecting flange, and the sealing plug is squeezed and limited in a limiting space formed between the first connecting flange and the sealing end cover.

[0019] Further, a clamping boss and an elastic reset member are arranged on an inner peripheral wall of the first diversion channel. One end of the elastic reset member is connected to the clamping boss and the other end is connected to the valve body. The valve body is located between the sealing plug and the elastic reset member. Under the action of the elastic reset member, the valve body tightly seals the sealing fit hole;

[0020] Preferably, the elastic reset member is a spring compressed and abutted between the valve body and the clamping boss, and the valve body is a valve ball with an outer diameter larger than an inner diameter of the sealing fit hole.

[0021] Another object of the present invention further provides a liquid storage box, which has a sealed chamber for storing additives. An installation port is provided on the liquid storage box, and the above plug structure is hermetically installed at the installation port.

[0022] Another object of the present invention further provides an automatic additive dispensing device, which has at least one accommodating part for installing a liquid storage box. The liquid storage box is installed in the accommodating part, and the above plug structure is installed in the liquid storage box;

[0023] A joint structure for cooperating with the plug structure to dispense additives is further provided on the automatic additive dispensing device. The joint structure includes a top rod with a second diversion channel inside. The top rod extends into the plug body by squeezing the sealing fit hole, pushes open the valve body, and the sealing fit hole deforms under the extrusion of the top rod and tightly cooperates with the top rod to form a seal.

[0024] Further, an outer diameter of the top rod is smaller than an inner diameter of an insertion port of the plug body and larger than an inner diameter of the sealing fit hole; the top rod includes a rod-shaped body with a hollow interior and a top rod cap connected to an end of the rod-shaped body. Diversion holes communicating with the second diversion channel are formed on a side wall of the top rod cap and / or a peripheral wall of an end of the rod-shaped body.

[0025] Further, the joint structure further includes a plugging sleeve. An accommodating cavity for inserting or pulling out the plug body is provided inside the plugging sleeve. One end of the plugging sleeve cooperating with the plug body is open, and the other end is closed;

[0026] A blocking portion is formed at the closed end of the plugging sleeve. One end of the ejector rod passes through the blocking portion and is located in the accommodating cavity, and the other end is fixed on the blocking portion and is communicated with the liquid extraction pipeline of the additive automatic feeding device.

[0027] Furthermore, a sealing structure is arranged on the outer peripheral wall of the plug body at a position close to the open end of the plugging sleeve. The sealing structure is sealingly connected between the outer peripheral wall of the plug body and the inner peripheral wall of the plugging sleeve;

[0028] Preferably, a limiting step that is in limiting cooperation with the open end of the plugging sleeve is arranged on the outer peripheral wall of the plug body. A sealing groove is formed between the limiting step, the closed end cover and the outer peripheral wall of the plug body. The sealing structure includes one or more sealing rings arranged in the sealing groove.

[0029] After adopting the above technical solutions, the present invention has the following beneficial effects compared with the prior art.

[0030] 1. The plug structure provided by the present invention has an insertion opening formed on the plug body of the plug structure. A sealing plug is hermetically arranged at a position corresponding to the insertion opening. A sealing cooperation hole that can be elastically deformed is arranged on the sealing plug corresponding to the insertion opening. The present invention realizes the self-sealing of the liquid storage box through the tight cooperation between the sealing plug and the valve body. Compared with directly plugging the insertion opening by the valve body, the sealing effect is better. Moreover, through the arranged sealing cooperation hole that can be elastically deformed, the phenomenon of liquid leakage during the plugging process of the plug structure can be effectively avoided.

[0031] 2. The liquid storage box provided by the present invention is installed with the above plug structure, which can realize the self-sealing of the liquid storage box, effectively ensuring the sealing performance of the liquid storage box and making it more convenient for the storage, transportation, etc. of the liquid storage box. And, in the present application, a sealing cooperation hole that can be elastically deformed is arranged on the sealing plug corresponding to the insertion opening, which can effectively avoid the phenomenon of liquid leakage during the plugging process of the plugging structure of the existing ink cartridge type liquid storage box, and the user experience is better.

[0032] 3. The above liquid storage box is installed in the accommodating portion of the additive automatic feeding device provided by the present invention. The additive automatic feeding device is provided with a joint structure that cooperates with the above plug structure to feed the additive. The joint structure includes an ejector rod with a second diversion channel inside. The ejector rod extends into the plug body by squeezing the sealing cooperation hole and pushes open the valve body. During the process of the liquid storage box being placed into or taken out of the accommodating portion, the inner peripheral wall surface of the sealing cooperation hole and the outer peripheral wall surface of the ejector rod are always in a tightly cooperating state, and the additive in the liquid storage box will not leak from the gap between the two, and the sealing performance is good, effectively avoiding the phenomenon that the additive in the existing liquid storage box is likely to overflow from the gap between the insertion opening and the ejector rod during the plugging and unplugging process.

[0033] 4. The connector structure of the additive automatic dosing device provided by the present invention further includes a plugging sleeve. An accommodating cavity for inserting or pulling out the plug body is provided in the plugging sleeve. When the additive in the liquid storage box leaks accidentally, the plugging sleeve can also collect and temporarily store the leaked additive. In addition, in the present application, a sealing structure is provided at a position on the outer peripheral wall of the plug body close to the open end of the plugging sleeve. The sealing structure is sealingly connected between the outer peripheral wall of the plug body and the inner peripheral wall of the plugging sleeve, and the secondary prevention of additive leakage is achieved through the provided sealing structure, which can effectively prevent the additive temporarily stored and collected in the plugging sleeve from leaking out, affecting the cleaning effect and normal use of the entire additive automatic dosing device.

[0034] The following further describes in detail the specific embodiments of the present invention with reference to the accompanying drawings. Description of the Drawings

[0035] The accompanying drawings, as a part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention, but do not constitute an improper limitation to the present invention. Obviously, the accompanying drawings in the following description are only some embodiments, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts. In the drawings:

[0036] Figure 1 is the assembly schematic diagram of the plug structure in the embodiment of the present invention;

[0037] Figure 2 is the exploded view of the plug structure in the embodiment of the present invention;

[0038] Figure 3 is the cross-sectional view of the plug structure at one angle in the embodiment of the present invention;

[0039] Figure 4 is the cross-sectional view of the plug structure at another angle in the embodiment of the present invention;

[0040] Figure 5 is the assembly schematic diagram of the connector structure in the embodiment of the present invention;

[0041] Figure 6 is the exploded view of the connector structure in the embodiment of the present invention;

[0042] Figure 7 is the cross-sectional view of the connector structure in the embodiment of the present invention;

[0043] Figure 8 is the cross-sectional view of the state where the ejector rod is separated from the plug structure in the embodiment of the present invention;

[0044] Figure 9 It is a sectional view of the open state where the ejector rod pushes open the valve body in the embodiment of the present invention.

[0045] In the figure:

[0046] 10. Plug structure;

[0047] 11. Plug body; 110. First diversion channel; 111. Clamping boss; 112. Limiting step; 1121. First step; 1122. Second step; 113. First connecting flange; 114. Sealing groove;

[0048] 12. Sealing plug; 121. Plug body; 122. Sealing lip; 123. Sealing mating hole;

[0049] 13. Closed end cover; 131. Insertion port; 132. Second connecting flange;

[0050] 14. Valve body; 15. Elastic reset member; 16. Sealing ring;

[0051] 20. Connector structure;

[0052] 21. Ejector rod; 211. Rod-shaped body; 212. Ejector rod cap; 213. Diversion hole;

[0053] 22. Insertion sleeve; 221. Blocking part; 222. Accommodating cavity.

[0054] It should be noted that these drawings and text descriptions are not intended to limit the scope of the concept of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0055] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0056] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0057] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] The present invention will be further described in detail below in conjunction with embodiments.

[0059] Example 1

[0060] As Figure 1 to as Figure 4 As shown, this embodiment provides a plug structure 10. The plug structure 10 includes a plug body 11 with a first diversion channel 110 therein. An insertion port 131 is provided on the plug body 11. In this embodiment, a sealing plug 12 is hermetically provided inside the plug body 11 near the insertion port 131. A seal mating hole 123 that can elastically deform is provided at a position corresponding to the insertion port 131 on the sealing plug 12. The seal mating hole 123 communicates the insertion port 131 and the first diversion channel 110. A valve body 14 that can close or open the seal mating hole 123 is provided inside the plug body 11.

[0061] For the plug structure 10 provided in this embodiment, an insertion port 131 is provided on the plug body 11 of the plug structure 10. A sealing plug 12 is hermetically provided at a position corresponding to the insertion port 131. A seal mating hole 123 that can elastically deform is provided on the sealing plug 12 corresponding to the insertion port 131. The present invention realizes the self-sealing of the liquid storage box through the close cooperation between the sealing plug 12 and the valve body 14. Compared with directly blocking the insertion port 131 by the valve body 14, the sealing effect is better. Moreover, through the provided seal mating hole 123 that can elastically deform, the phenomenon of liquid leakage during the insertion process of the plug structure 10 can be effectively avoided.

[0062] Further, the sealing plug 12 includes a plug body 121 hermetically provided inside the plug body 11. A seal mating hole 123 is provided at a position corresponding to the insertion port 131 on the plug body 121. The plug body 121 and the peripheral wall of the plug body 11 are of matching sizes. The plug body 121 is press-fitted inside the plug body 11. The plug body 121 is in contact and sealed with the inner wall surface of the plug body 11, preventing the liquid in the first diversion channel 110 from flowing into the insertion port 131 through the gap between the sealing plug 12 and the inner wall of the plug body 11 and leaking from the insertion port 131.

[0063] Preferably, the sealing plug 12 further includes a sealing lip 122 connected to the plug body 121 near the valve body 14 side, and the sealing lip 122 is in contact sealing with the valve body 14. The sealing lip 122 is formed by smoothly transitioning and extending outward from the edge of the sealing mating hole 123. The sealing lip 122 is in an outwardly expanding shape that gradually expands outward. Under the action of the elastic resetting member 15, the valve body 14 is tightly fitted on the inner wall surface of the sealing lip 122 and blocks the sealing mating hole 123.

[0064] In the above solution, the sealing lip 122 is in an outwardly expanding shape that gradually expands outward. On the one hand, it plays a guiding role, facilitating the smooth entry of the valve body 14 to abut against the sealing mating hole 123, which is an axially extending and elastically deformable sealing mating hole 123 opened along the plug body 121. On the other hand, under the action of the elastic resetting member 15, the valve body 14 abuts tightly against the sealing lip 122, and the outer peripheral wall surface of the valve body 14 is in close fit with the inner wall surface of the sealing lip 122, forming a surface-to-surface contact seal, increasing the effective sealing contact area between the valve body 14 and the sealing mating hole 123. Compared with the valve body 14 directly blocking the sealing mating hole 123 in a line-to-surface contact seal manner, the sealing effect is better.

[0065] Preferably, the sealing plug 12 is made of an elastic material. More preferably, the sealing plug 12 is made of a rubber material. Using a rubber material not only has a low cost but also has a good sealing effect.

[0066] Furthermore, the plug body 11 has a cylindrical housing. The interior of the plug body 11 is hollowly arranged to form the first diversion channel 110. One end of the plug body 11 is provided with a closed end cover 13, and the other end is open. The plug interface 131 is opened on the closed end cover 13. The closed end cover 13 can be integrally provided with the plug body 11 or assembled and connected integrally.

[0067] The plug body 121 is extruded and limited within the closed end cover 13. The plug body 121 matches the shape and size of the closed end cover 13. The outer wall surface of the plug body 121 is in close fit with the inner wall surface of the closed end cover 13 to form a contact seal. The plug body 121 has a certain thickness. The sealing mating hole 123 is an axially extending and elastically deformable mating hole column corresponding to the plug interface 131 along the plug body 121. The sealing mating hole 123 is in the form of a mating hole column. When the plug structure 10 is plugged into the joint structure 20, the contact area between the joint structure 20 and the sealing mating hole 123 is larger, and the sealing effect is better, which can more effectively prevent the phenomenon of liquid leakage during the plugging process of the plug structure 10.

[0068] Preferably, the inner diameter of the mating hole column gradually increases from the side of the insertion interface 131 in a direction away from the insertion interface 131, or the middle of the mating hole column is narrowed and both ends gradually expand outward. On the one hand, it facilitates the plug-in fit between the sealing mating hole 123 and other components, and on the other hand, it ensures the sealing performance during the plugging process.

[0069] Further, as Figure 3 and Figure 4 shown, the edge of the end of the plug body 11 near the closed end cover 13 is turned outward and extended to form a first connecting flange 113, and the edge of the end of the closed end cover 13 is turned inward and extended to form a second connecting flange 132; the first connecting flange 113 is limited and clamped inside the second connecting flange 132, and the sealing plug 12 is squeezed and limited in the limiting space formed between the first connecting flange 113 and the sealing end cover.

[0070] The first connecting flange 113 and the second connecting flange 132 are clamped and connected and sealed, preventing the liquid in the first diversion channel 110 from leaking from the connection position between the two. The closed end cover 13 and the plug body 11 are connected and fixed by means of flanges. Compared with direct connection, on the one hand, the stability is higher, and on the other hand, it can also play a certain sealing role.

[0071] Specifically, the closed end cover 13 includes an end wall and a peripheral side wall connected to the outer peripheral edge of the end wall. The inner diameter of the closed end cover 13 is slightly larger than the outer diameter of the plug body 11. The second connecting flange 132 is formed by turning the end of the peripheral side wall inward and extending. The second connecting flange 132 is limited and clamped inside the first connecting flange 113. The plug body 121 is squeezed and limited in the limiting space between the first connecting flange 113 and the end wall of the sealing end cover, and the outer wall surface of the plug body 121 is closely attached to the inner wall surfaces of the end wall and the peripheral side wall of the closed end cover 13.

[0072] Further, as Figure 4 shown, a clamping boss 111 and an elastic reset member 15 are provided on the inner peripheral wall of the first diversion channel 110. The elastic reset member 15 applies a thrust force to the valve body 14 in a direction close to the insertion interface 131 to block the sealing mating hole 123. One end of the elastic reset member 15 is connected to the clamping boss 111 and the other end is connected to the valve body 14. The valve body 14 is located between the sealing plug 12 and the elastic reset member 15, and the valve body 14 tightly blocks the sealing mating hole 123 under the action of the elastic reset member 15.

[0073] Specifically, the elastic reset member 15 is compressively connected between the valve body 14 and the clamping boss 111, and the valve body 14 is tightly fitted within the sealing lip 122 under the action of the elastic reset member 15; the clamping boss 111 is an annular boss circumferentially arranged along the inner peripheral wall of the first diversion channel 110, or the clamping boss 111 is a plurality of boss structures circumferentially spaced along the inner peripheral wall of the first diversion channel 110.

[0074] Preferably, the elastic reset member 15 is a spring compressively abutted between the valve body 14 and the clamping boss 111, and the valve body 14 is a valve ball with an outer diameter larger than the inner diameter of the sealing fit hole 123. The valve ball is tightly fitted within the sealing lip 122 of the sealing plug 12 under the action of the spring and blocks the sealing fit hole 123.

[0075] In this embodiment, self-sealing can be achieved through the tight fit between the sealing plug 12 and the valve body 14. Compared with directly blocking the insertion port 131 by the valve body 14, the sealing effect is better. Moreover, through the provided elastically deformable sealing fit hole 123, the phenomenon of liquid leakage during the insertion process of the plug structure 10 can be effectively avoided.

[0076] Example 2

[0077] As Figures 1 to 9 shown, this embodiment provides a joint structure 20, and the joint structure 20 can be used in cooperation with the plug structure 10 in the first embodiment.

[0078] As Figures 5 to 7 shown, the joint structure 20 provided in this embodiment includes a top rod 21 with a second diversion channel inside. The top rod 21 extends into the plug body 11 by squeezing the sealing fit hole 123, pushing open the valve body 14, and realizing the communication between the first diversion channel 110 and the second diversion channel. The sealing fit hole 123 deforms under the extrusion of the top rod 21 and tightly fits with the top rod 21 to form a seal.

[0079] In this embodiment, as Figures 5 to 9 shown, the outer diameter of the top rod 21 is smaller than the inner diameter of the insertion port 131 of the plug body 11, and the inner diameter of the sealing fit hole 123 is smaller than the outer diameter of the top rod 21. Through the above design, during the insertion process of the plug structure 10 and the joint structure 20, the outer peripheral wall of the top rod 21 is always in a tightly fitting state with the inner peripheral wall of the sealing fit hole 123, and the liquid in the first diversion channel 110 will not overflow from the gap between the top rod 21 and the sealing fit hole 123, so as to ensure the sealing performance of the plug structure 10 and the joint structure 20 during the insertion process.

[0080] Further, the ejector rod 21 includes a rod-shaped body 211 with a hollow interior and an ejector rod cap 212 connected to the end of the rod-shaped body 211. The space inside the ejector rod 21 forms the second diversion channel.

[0081] Diversion holes 213 communicating with the second diversion channel are formed in the side wall of the ejector rod cap 212 and / or the peripheral wall of the end of the rod-shaped body 211, that is, one or more diversion holes 213 are formed in the side wall of the ejector rod cap 212, or in the peripheral wall of the end of the rod-shaped body 211, or between the rod-shaped body 211 and the ejector rod cap 212.

[0082] When the end of the ejector rod 21 extends into the plug body 11 from the insertion interface 131 and the sealing fit hole 123, the diversion holes 213 are directly communicated with the first diversion channel 110, thereby realizing the communication between the first diversion channel 110 and the second diversion channel.

[0083] In the above solution, the ejector rod cap 212 is in the shape of a mushroom head with a certain taper arc, which plays a guiding role to facilitate the smooth insertion of the ejector rod 21 into the plug body 11 from the sealing fit hole 123. The diversion holes 213 are formed in the peripheral side wall of the end of the ejector rod 21 instead of the front end wall, so as to prevent the valve body 14 from covering the diversion holes 213 when the ejector rod 21 abuts against the valve body 14, which affects the communication effect between the first diversion channel 110 and the second diversion channel.

[0084] Further, as Figures 7 to 9 shown, the joint structure 20 further includes a plugging sleeve 22. The plugging sleeve 22 has a receiving cavity 222 for the plug body 11 to be inserted or pulled out. One end of the plugging sleeve 22 that cooperates with the plug body 11 is open, and the other end is closed.

[0085] A blocking portion 221 is formed at the closed end of the plugging sleeve 22. One end of the ejector rod 21 passes through the blocking portion 221 and is located in the receiving cavity 222, and the other end is fixed on the blocking portion 221.

[0086] In the above solution, the joint structure 20 further includes a plugging sleeve 22. The plugging sleeve 22 has a receiving cavity 222 for the plug body 11 to be inserted or pulled out. When the additive in the liquid storage box leaks accidentally, the plugging sleeve 22 can also collect and temporarily store the leaked additive.

[0087] Further, a sealing structure is provided at a position on the outer peripheral wall of the plug body 11 close to the open end of the plugging sleeve 22. The sealing structure is sealingly connected between the outer peripheral wall of the plug body 11 and the inner peripheral wall of the plugging sleeve 22.

[0088] Preferably, a limiting step 112 which is in limiting cooperation with the open end of the plugging sleeve 22 is arranged on the outer peripheral wall of the plug body 11. A sealing groove 114 is formed among the limiting step 112, the closed end cover 13 and the outer peripheral wall of the plug body 11. The sealing structure includes one or more sealing rings 16 arranged in the sealing groove 114.

[0089] Specifically, a limiting step 112 which is in limiting cooperation with the open end of the plugging sleeve 22 is arranged on the outer peripheral wall of the plug body 11. The limiting step 112 includes a first step 1121 and a second step 1122, the heights of which increase in sequence from the side close to the plugging opening 131 towards the side far from the plugging opening 131 along the axial direction of the plug body 11. The outer diameter of the first step 1121 matches the inner diameter of the plugging sleeve 22, and the outer diameter of the second step 1122 is larger than the outer diameter of the plugging sleeve 22.

[0090] Such as Figure 3 、 Figure 4 、 Figure 9 shown, the open end of the plugging sleeve 22 is in limiting snap connection between the first step 1121 and the second step 1122. A sealing groove 114 is formed among the first step 1121, the closed end cover 13 and the outer peripheral wall of the plug body 11. The sealing structure includes a plurality of sealing rings 16 arranged in the sealing groove 114.

[0091] Preferably, the outer peripheral shape and size of the closed end cover 13 are adapted to the inner peripheral shape and size of the plugging sleeve 22. The outer diameter of the closed end cover 13 is slightly smaller than the inner diameter of the plugging sleeve 22, and the closed end cover 13 can also play a role in blocking the leakage of liquid.

[0092] In this embodiment, a sealing structure is further arranged on the outer peripheral wall of the plug body 11 at a position close to the open end of the plugging sleeve 22. The sealing structure is hermetically connected between the outer peripheral wall of the plug body 11 and the inner peripheral wall of the plugging sleeve 22. By arranging the sealing structure, the secondary prevention of the leakage of the additive is achieved, and the leakage of the additive temporarily stored and collected in the plugging sleeve 22 can be effectively avoided, so as to affect the cleaning effect and normal use of the whole structure.

[0093] Example 3

[0094] Such as Figures 1 to 9 shown, this embodiment provides a liquid storage box on the basis of Embodiment 1 and Embodiment 2. The liquid storage box has a sealed chamber for storing the additive, and an installation opening is arranged on the liquid storage box.

[0095] In the first embodiment, the plug structure 10 of the above-mentioned embodiment one is hermetically installed at the installation opening of the liquid storage box. The liquid storage box provided in this embodiment is installed with the above-mentioned plug structure 10, which can realize the self-sealing of the liquid storage box, effectively ensure the sealing performance of the liquid storage box, and is more convenient for the storage, transportation, etc. of the liquid storage box. Moreover, in this application, an elastically deformable sealing mating hole 123 is provided on the sealing plug 12 corresponding to the insertion interface 131, which can effectively avoid the phenomenon of liquid leakage during the insertion process of the plug structure of the existing ink cartridge type liquid storage box, and the user experience is better.

[0096] In the second embodiment, the joint structure 20 of the above-mentioned embodiment two is hermetically installed at the installation opening of the liquid storage box. The liquid storage box is disposable. The diversion hole 213 of the ejector rod 21 of the joint structure 20 is sealed with a plastic film or the like. When in use, the plastic film is removed and used in cooperation with the plug structure 10 on the dosing device to dispense the additive.

[0097] Preferably, in this embodiment, the liquid storage box provided adopts the first embodiment. The plug structure in the above-mentioned embodiment one is installed on the installation opening of the liquid storage box, and there is no need to use other auxiliary structures for sealing, which can realize the self-sealing of the liquid storage box, with higher sealing effect and more convenient use.

[0098] Example 4

[0099] This embodiment provides an automatic additive dosing device on the basis of Embodiment One, Embodiment Two, and Embodiment Three. The automatic additive dosing device has at least one accommodating part for installing the liquid storage box. The liquid storage box is installed in the accommodating part, and the liquid storage box has a sealed chamber for storing the additive.

[0100] Combined Figures 1 to 9 As shown, the automatic additive dosing device provided in this embodiment is realized by the following two embodiments.

[0101] In the first embodiment, the liquid storage box is provided with an installation opening, and the plug structure 10 of the above-mentioned Embodiment One is hermetically installed on the installation opening. The joint structure 20 of the above-mentioned Embodiment Two is installed on the corresponding automatic additive dosing device. Preferably, the joint structure 20 is installed on the accommodating part, and the plug structure 10 cooperates with the joint structure 20 to dispense the additive. The plug structure 10 is installed in the liquid storage box, and the first diversion channel 110 of the plug structure 10 is communicated with the sealed chamber inside the liquid storage box. The additive in the liquid storage box can flow from the plug structure 10 into the joint structure 20.

[0102] In the second embodiment, the joint structure 20 is sealed and installed on the installation opening of the liquid storage box, and the plug structure 10 in the first embodiment is installed on the corresponding additive automatic dosing device. Preferably, the plug structure 10 is installed on the accommodating portion, and the plug structure 10 cooperates with the joint structure 20 to dispense the additive. The end of the ejector rod 21 of the joint structure 20 having the diversion hole 213 is sealed, and the other end is communicated with the sealed chamber of the liquid storage box. The additive in the liquid storage box can flow into the plug structure 10 through the joint structure 20.

[0103] Preferably, the additive automatic dosing device provided in this embodiment adopts the above-mentioned first embodiment, that is, the plug structure 10 in the above-mentioned first embodiment is installed on the liquid storage box, and the joint structure 20 in the second embodiment is installed on the additive automatic dosing device.

[0104] Preferably, the joint structure 20 is fixedly installed on the side wall of the accommodating portion correspondingly, an installation opening is correspondingly provided on the side portion of the liquid storage box, and the plug structure 10 is sealed and installed on the installation opening on the side portion of the liquid storage box.

[0105] The joint structure 20 includes an ejector rod 21 fixedly provided with a second diversion channel therein. When the liquid storage box is placed in the accommodating portion, the ejector rod 21 corresponds to the insertion opening 131 of the plug structure 10. The ejector rod 21 extends into the plug body 11 by squeezing the sealing fit hole 123, and pushes open the valve body 14. The sealing fit hole 123 deforms under the extrusion of the ejector rod 21 and tightly cooperates with the ejector rod 21 to form a seal.

[0106] In the above solution, during the process of putting the liquid storage box into the accommodating portion or taking it out of the accommodating portion, the inner peripheral wall surface of the sealing fit hole 123 and the outer peripheral wall surface of the ejector rod 21 are always in a tightly fitting state, and the additive in the liquid storage box will not leak from the gap between the two, and the sealing performance is good, effectively avoiding the phenomenon that the additive in the existing liquid storage box is easily overflowed from the gap between the insertion opening 131 and the ejector rod 21 during the plugging process of the plugging structure of the liquid storage box.

[0107] Furthermore, the inner diameter of the insertion opening 131 of the plug body 11 is larger than the outer diameter of the ejector rod 21, and the inner diameter of the sealing fit hole 123 is smaller than the outer diameter of the ejector rod 21; the ejector rod 21 includes a rod-shaped body 211 and an ejector rod cap 212 connected to the end of the rod-shaped body 211, and diversion holes 213 communicating with the second diversion channel are provided on the side wall of the ejector rod cap 212 and / or the peripheral wall of the end of the rod-shaped body 211.

[0108] Further, the joint structure 20 further includes a plug socket 22. An accommodation cavity 222 for the plug body 11 to be inserted or pulled out is formed in the plug socket 22. One end of the plug socket 22 that cooperates with the plug body 11 is open, and the other end is closed. A blocking portion 221 is formed at the closed end of the plug socket 22. One end of the ejector rod 21 passes through the blocking portion 221 and is located in the accommodation cavity 222, and the other end is fixed on the blocking portion 221 and is communicated with the liquid extraction pipeline of the additive automatic feeding device.

[0109] Combined Figure 9 As shown, when the liquid storage box is placed in the accommodating portion, the top end of the ejector rod 21 abuts against the valve body 14 of the ejector rod 21. The diversion hole 213 is communicated with the first diversion channel 110 of the plug structure 10, and thus is communicated with the additive in the liquid storage box, so that the additive in the liquid storage box is communicated with the liquid extraction pipeline of the feeding device.

[0110] Further, a sealing structure is provided on the outer peripheral wall of the plug body 11 at a position close to the open end of the plug socket 22. The sealing structure is sealingly connected between the outer peripheral wall of the plug body 11 and the inner peripheral wall of the plug socket 22.

[0111] Preferably, a limiting step 112 that is in limiting cooperation with the open end of the plug socket 22 is provided on the outer peripheral wall of the plug body 11. A sealing groove 114 is formed between the limiting step 112, the closed end cover 13 and the outer peripheral wall of the plug body 11. The sealing structure includes one or more sealing rings 16 provided in the sealing groove 114.

[0112] In the above solution, as Figure 7 and Figure 8 shown, an accommodation cavity 222 for the plug body 11 to be inserted or pulled out is formed in the plug socket 22. When the additive in the liquid storage box leaks accidentally, the plug socket 22 can also play a role in collecting and temporarily storing the leaked additive. In addition, in the present application, a sealing structure is provided on the outer peripheral wall of the plug body 11 at a position close to the open end of the plug socket 22. The sealing structure is sealingly connected between the outer peripheral wall of the plug body 11 and the inner peripheral wall of the plug socket 22. The provided sealing structure plays a role in secondarily preventing the leakage of the additive, and can effectively prevent the additive temporarily stored and collected in the plug socket 22 from leaking out, affecting the cleaning effect and normal use of the entire additive automatic feeding device.

[0113] As Figure 9As shown in the figure, for the plug structure 10 and the joint structure 20 provided in the embodiments of the present invention, during the process of inserting the plug structure 10 into the joint structure 20, the ejector rod 21 on the joint structure 20 closely cooperates with the sealing plug 12 on the plug structure 10. At the same time, the socket sleeve 22 of the joint structure 20 closely cooperates with the O-ring 16 of the plug structure 10. With the relative movement of the plug structure 10 and the joint structure 20, the ejector rod 21 on the joint pushes open the valve body 14 inside the plug, and the joint is connected to the first diversion channel 110 of the plug through the diversion hole 213 on the side of the ejector rod 21. At this time, the additive in the liquid storage box can flow through the plug structure 10 to the joint mechanism, or flow through the joint structure 20 to the plug structure 10.

[0114] As Figure 8 shown, during the process of pulling out the plug structure 10 from the joint structure 20, the ejector rod 21 always closely cooperates with the sealing plug 12 on the plug. At the moment when the ejector rod 21 is pulled out from the sealing plug 12, the spring presses the valve body 14 against the sealing plug 12 to seal the cavity inside the plug structure 10. At this time, the socket sleeve 22 on the joint structure 20 always closely cooperates with the O-ring 16 on the plug body 11. The plug body 11 and the socket sleeve 22 continue to move relatively, the ejector rod 21 disengages from the O-ring 16, and the plug body 11 is completely pulled out from the socket sleeve 22.

[0115] In this embodiment, the additive automatic feeding device can adopt any of the existing structures to feed the additive in the liquid storage box placed in the accommodating part; for example: the additive automatic feeding device is provided with at least one liquid storage box for storing the additive, and each liquid storage box is respectively connected to the water inlet pipeline for the water inlet in the washing tub of the washing machine through the feeding unit, so as to achieve the purpose of controlling at least one additive to be correspondingly fed into the washing tub by each additive automatic feeding device.

[0116] In this embodiment, the described feeding unit can be any existing device that can realize the function of feeding the additive, such as: a suction pump that generates a suction force to draw out the additive during operation, a Venturi tube that uses water flow to generate negative pressure to draw out the additive, and so on. A liquid extraction pipeline is connected between the suction pump and the liquid storage box. One end of the liquid extraction pipeline is connected to the suction port of the suction pump, and the other end is connected to the internal cavity of the liquid storage box through the joint structure 20 and the plug structure 10. The additive in the liquid storage box is drawn out and fed into the water inlet pipeline through the feeding pump or the Venturi tube and the liquid extraction pipeline, and is fed into the washing tub along with the water inlet of the washing machine.

[0117] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present invention, can make some changes or modifications using the technical content prompted above to form equivalent embodiments of equivalent changes. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An automatic additive dispensing device having at least one accommodating portion for installing a liquid storage box, characterized in that: A liquid storage box is installed in the accommodation part, and a plug structure is installed in the liquid storage box; a joint structure for cooperating with the plug structure to dispense additives is arranged on the additive automatic dispensing device; The plug structure includes a plug body with a first diversion channel inside. An insertion opening is formed on the plug body. A sealing plug is arranged inside the plug body near the insertion opening side. A sealing fit hole capable of elastic deformation is arranged at the position of the sealing plug corresponding to the insertion opening for communicating the insertion opening and the first diversion channel. A valve body for closing or opening the sealing fit hole is arranged inside the plug body; One end of the plug body is provided with a closed end cover. The edge of the end of the plug body near the closed end cover extends outward and turns over to form a first connection flange. The edge of the end of the closed end cover extends inward and turns over to form a second connection flange. The first connection flange is limited and clamped inside the second connection flange, and the sealing plug is extruded and limited in the limiting space formed between the first connection flange and the closed end cover; The joint structure includes a ejector rod with a second diversion channel inside and a socket sleeve. The ejector rod extends into the plug body by squeezing the sealing fit hole to push open the valve body. The sealing fit hole deforms under the extrusion of the ejector rod and closely cooperates with the ejector rod to form a seal; The socket sleeve has a receiving cavity for the plug body to be inserted or pulled out. One end of the socket sleeve that cooperates with the plug body is open, and the other end is closed. A blocking part is formed at the closed end. One end of the ejector rod passes through the blocking part and is located in the receiving cavity, and the other end is fixed on the blocking part and is communicated with the liquid extraction pipeline of the additive automatic dispensing device.

2. The additive automatic dispensing device according to claim 1, characterized in that: The sealing plug includes a plug body and a sealing lip connected to the plug body near the valve body side. A sealing fit hole is arranged at the position of the plug body corresponding to the insertion opening. The sealing lip is in contact sealing with the valve body; The sealing lip is formed by smoothly transitioning and extending outward from the edge of the sealing fit hole. The sealing lip is in an outward expanding shape that gradually expands outward. The valve body is tightly fitted on the inner wall surface of the sealing lip under the action of an elastic resetting member and blocks the sealing fit hole.

3. The additive automatic dispensing device according to claim 2, characterized in that: The sealing plug is made of rubber material.

4. The additive automatic dispensing device according to claim 2, characterized in that: The plug body has a cylindrical shell. The inside of the plug body is hollow to form the first diversion channel. The other end of the plug body is open, and the insertion opening is formed on the closed end cover; The plug body is extruded and limited in the closed end cover. The outer wall surface of the plug body is in close contact with the inner wall surface of the closed end cover to form contact sealing. The sealing fit hole is an axially arranged elastic deformation fit hole column corresponding to the insertion opening along the plug body.

5. The additive automatic dispensing device according to claim 4, characterized in that: The inner diameter of the mating hole column gradually increases from the side of the insertion interface in a direction away from the insertion interface, or the middle of the mating hole column is narrowed and the two ends gradually expand outward.

6. The automatic additive dispensing device according to claim 1, characterized in that: A clamping boss and an elastic reset member are provided on the inner peripheral wall of the first diversion channel. One end of the elastic reset member is connected to the clamping boss and the other end is connected to the valve body. The valve body is located between the sealing plug and the elastic reset member. The valve body tightly seals the sealing mating hole under the action of the elastic reset member.

7. The automatic additive dispensing device according to claim 6, characterized in that: The elastic reset member is a spring compressed and abutted between the valve body and the clamping boss, and the valve body is a valve ball with an outer diameter larger than the inner diameter of the sealing mating hole.

8. The automatic additive dispensing device according to any one of claims 1-7, characterized in that: The outer diameter of the ejector rod is smaller than the inner diameter of the insertion interface of the plug body and larger than the inner diameter of the sealing mating hole; the ejector rod includes a rod-shaped body with a hollow interior and an ejector rod cap connected to the end of the rod-shaped body. Diversion holes communicating with the second diversion channel are provided on the side wall of the ejector rod cap and / or the peripheral wall of the end of the rod-shaped body.

9. The automatic additive dispensing device according to claim 8, characterized in that: A sealing structure is provided on the outer peripheral wall of the plug body near the open end of the insertion sleeve, and the sealing structure is sealingly connected between the outer peripheral wall of the plug body and the inner peripheral wall of the insertion sleeve.

10. The automatic additive dispensing device according to claim 9, characterized in that: A limiting step for limit fitting with the open end of the insertion sleeve is provided on the outer peripheral wall of the plug body. A sealing groove is formed between the limiting step, the closed end cover and the outer peripheral wall of the plug body. The sealing structure includes one or more sealing rings provided in the sealing groove.

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