WO2021213551A1 - 一种洗涤剂自动投放装置及洗涤设备 - Google Patents

一种洗涤剂自动投放装置及洗涤设备 Download PDF

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Publication number
WO2021213551A1
WO2021213551A1 PCT/CN2021/099646 CN2021099646W WO2021213551A1 WO 2021213551 A1 WO2021213551 A1 WO 2021213551A1 CN 2021099646 W CN2021099646 W CN 2021099646W WO 2021213551 A1 WO2021213551 A1 WO 2021213551A1
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WO
WIPO (PCT)
Prior art keywords
valve
liquid outlet
hole
valve assembly
liquid
Prior art date
Application number
PCT/CN2021/099646
Other languages
English (en)
French (fr)
Inventor
黄涛
李丽平
张华成
Original Assignee
重庆海尔滚筒洗衣机有限公司
海尔智家股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 重庆海尔滚筒洗衣机有限公司, 海尔智家股份有限公司 filed Critical 重庆海尔滚筒洗衣机有限公司
Priority to US18/003,928 priority Critical patent/US20230263364A1/en
Publication of WO2021213551A1 publication Critical patent/WO2021213551A1/zh

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/022—Devices for adding soap or other washing agents in a liquid state
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
    • A47L15/4418—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants in the form of liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
    • F16K15/026—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/148—Check valves with flexible valve members the closure elements being fixed in their centre

Definitions

  • the invention belongs to the technical field of washing equipment, and specifically relates to an automatic detergent dispensing device and washing equipment.
  • washing machines such as washing machines and dishwashers
  • washing machines and dishwashers on the basis of meeting people's basic washing requirements, is increasingly focusing on improving the user experience.
  • More and more washing machines and dishwashers have automatic detergent dispensing function, so that users no longer need to manually add detergent when using the washing machine to wash laundry or when using the dishwasher to wash dishes, which greatly facilitates users The use of, enhances the user experience.
  • the washing additive stored in the liquid storage box is drawn by means such as a pump, and then the washing additive is discharged into the washing chamber of the washing machine or the dishwasher.
  • the liquid storage box in the automatic dispensing device only has the storage of washing additives, and the liquid in the liquid storage box will not leak after the liquid storage box device is taken out of the automatic dispensing device.
  • the water in the dispensing device will be poured back into the liquid storage box through the pipeline for sucking the detergent, causing failures such as water overflow.
  • the technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an automatic detergent dispensing device that prevents liquid from being poured.
  • Another object of the present invention is to provide a washing equipment including the above-mentioned automatic detergent dispensing device.
  • An automatic detergent dispensing device includes a liquid storage box, the liquid storage box is provided with a liquid outlet channel, and the liquid outlet channel is provided with:
  • On-off valve assembly for opening/closing the liquid outlet channel
  • An anti-backflow valve assembly the anti-backflow valve assembly is arranged upstream of the opening and closing valve assembly corresponding to the liquid outlet direction, and is used to prevent external liquid from being poured back into the liquid storage box.
  • the on-off valve assembly and the anti-inflow valve assembly cooperate to make the liquid outlet channel have a first state and a second state;
  • both the on-off valve assembly and the anti-backflow valve assembly are opened, and the liquid outlet channel is conducted;
  • the on-off valve assembly is opened, the anti-inflow valve assembly is closed, and the liquid outlet channel is blocked.
  • the anti-inflow valve assembly includes a first valve seat and a first valve core, the first valve seat is in hermetically connected with the liquid outlet channel, and the first valve seat is configured to make the first valve A first valve hole through which the core passes and a first through hole for passing detergent, the first valve core is provided in the first valve hole to open/close the first through hole;
  • the first valve seat includes a first valve body and a first valve cover, the first valve body is in sealed connection with the liquid outlet passage, and one end of the first valve body is connected with the first valve cover, The other end is in communication with the liquid outlet channel, and the first valve hole and the first through hole are arranged on the first valve cover.
  • the first valve core includes a connecting part and a switch part
  • the connecting part is penetratingly arranged in the first valve hole
  • one end of the connecting part is provided with a limit part
  • the other end is connected to the switch part.
  • the switch part deforms to open the first through hole, and the switch part resets to close the first through hole.
  • the first valve cover is provided with an annular groove
  • the switch part is an inverted umbrella-shaped structure or a conical structure, covering the lower end surface of the first valve cover, and maintains the original shape or deforms itself.
  • the end of the switch part extends into or leaves the annular groove to close/open the first through hole;
  • a hollow groove that assists in the deformation of the switch part is provided inside the connecting part.
  • the on-off valve assembly includes a second valve seat and a second valve core, the second valve seat is in hermetically connected with the liquid outlet channel, and the second valve seat has an outlet for allowing detergent to pass through.
  • the liquid port, the second valve core extends into/out of the liquid outlet to close/open the liquid outlet.
  • the second valve seat includes a second valve body and a second valve cover that are hermetically connected, one end of the second valve body is provided with the second valve cover, and the other end is provided with the liquid outlet,
  • the second valve cover is provided with a second valve hole and a second through hole for communicating with the liquid outlet channel, and one end of the second valve core is axially movably arranged in the second valve hole Inside, the other end extends into/out of the liquid outlet.
  • the second valve core includes a valve stem and a plugging portion connected with the valve stem, and the valve stem is axially movably arranged in the second valve hole to drive the plugging portion to extend into /Exit the liquid outlet;
  • a return spring is provided between the second valve core and the second valve cover, one end of the return spring is stopped on the second valve cover, and the other end is stopped on the blocking portion superior.
  • the extraction unit includes a liquid outlet pipe, the liquid outlet pipe is in communication with the liquid outlet, and the liquid outlet pipe is provided with a pushing unit on a side close to the liquid outlet, and the pushing unit pushes the seal
  • the blocking part exits the liquid outlet;
  • the pushing unit is a push rod
  • one end of the blocking portion is provided with a groove that is recessed toward the valve rod, and the push rod matches the groove.
  • a washing equipment includes an automatic detergent dispensing device as described above.
  • the present invention has the following beneficial effects compared with the prior art.
  • the automatic detergent dispensing device of the present invention is provided with an anti-backflow valve assembly that prevents external liquid from being poured into the liquid storage box. Therefore, once the extraction unit fails, the anti-backflow valve assembly will block the liquid storage box outlet channel to avoid external The liquid is poured back into the liquid storage box, causing the occurrence of overflow.
  • the present invention uses the restoring force of the switch part itself to reset. As long as the suction force of the extraction unit disappears, the end of the switch part will extend into the annular groove to close the first through hole to prevent backflow.
  • annular groove is provided on the first valve cover to assist the sealing of the switch part. Then, when water is poured into the hollow channel of the first valve body, the switch part is under the action of the static pressure of the water. The end is compressed in the annular groove, so that the annular groove has a restrictive effect on the switch part, avoids its movement, further improves the sealing performance of the switch part to the first through hole, and prevents water from entering the liquid storage box.
  • the present invention is provided with a hollow groove that assists in the deformation of the switch part inside the connecting part, which is used to carry the deformation of the switch part. Then, when the on-off valve assembly is opened, under the action of the suction force generated by the extraction unit, The switch part is deformed, that is, when the end of the switch part leaves the annular groove, the hollow groove provides a certain deformation space for the deformation of the switch part, making it easy to deform, and avoiding the situation that the switch part cannot open the first through hole.
  • Figure 1 is a schematic diagram of an automatic detergent dispensing device of the present invention
  • Figure 2 is a schematic view of the structure of the opening and closing valve assembly and the anti-backflow valve assembly of the present invention
  • Figure 3 is a top view of the structure in Figure 2;
  • Figure 4 is a cross-sectional view along the line A-A in Figure 3;
  • Figure 5 is a front view of the structure in Figure 2;
  • Figure 6 is a cross-sectional view taken along line B-B in Figure 5;
  • Fig. 7 is a partial enlarged view of I in Fig. 6;
  • Figure 8 is a structural diagram of the opening and closing valve assembly and the anti-backflow valve assembly in the first state
  • Figure 9 is a structural schematic diagram of the opening and closing valve assembly and the anti-backflow valve assembly in the second state
  • Anti-inflow valve assembly 201, first valve seat; 202, first valve core; 203, first valve hole; 204, first through hole; 205, first valve body; 206, first valve cover; 207 , Connecting part; 208, switch part; 209, limit part; 210, annular groove; 211, hollow groove;
  • Opening and closing valve assembly 301, second valve seat; 302, second valve core; 303, liquid outlet; 304, second valve body; 305, second valve cover; 306, second valve hole; 307, Second through hole; 308, valve stem; 309, blocking part; 310, return spring; 311, groove;
  • the present invention provides an automatic detergent dispensing device, which includes a liquid storage box 100 for storing detergent.
  • the liquid storage box 100 is provided with a liquid outlet channel 101 for discharging detergent.
  • the liquid channel 101 is provided with an on-off valve assembly 300 for opening/closing the liquid outlet channel 101 and an anti-backflow valve assembly 200 for preventing the backflow of external liquid into the liquid storage box 100.
  • the anti-backflow valve assembly 200 is provided in the on-off valve assembly. 300 corresponds to the upstream of the liquid outflow direction.
  • the automatic detergent dispensing device includes a liquid storage box 100 for storing detergent and a liquid storage box 100 for automatically dispensing the detergent stored in the liquid storage box 100 into the washing machine or dishwasher. Wait for the placing mechanism 400 in the washing chamber of the washing device.
  • the dispensing mechanism 400 includes an extraction unit and a liquid outlet pipe 401.
  • the liquid outlet pipe 401 is in communication with the liquid outlet 303.
  • the extraction unit extracts detergent stored in the liquid storage box 100 into the liquid outlet pipe 401. Then enter the washing chamber of the washing equipment through the connecting pipeline.
  • the extraction unit includes a venturi tube or a siphon tube for generating negative pressure in the liquid outlet pipe 401, or a device capable of generating suction force, such as a pump.
  • the opening and closing valve assembly 300 and the anti-backflow valve assembly 200 cooperate to make the liquid outlet channel 101 have a first state and a second state;
  • both the on-off valve assembly 300 and the anti-backflow valve assembly 200 are opened, and the liquid outlet channel 101 is conducted, as shown in FIG. 8;
  • the opening and closing valve assembly 300 is opened, the anti-backflow valve assembly 200 is closed, and the liquid outlet channel 101 is blocked, as shown in FIG. 9.
  • the normal state of the on-off valve assembly 300 is the open state, then, under normal circumstances, after the washing process starts, the washing equipment controls the operation of the extraction unit, and the output is generated in the extraction unit. Under the action of the suction force, the anti-inflow valve assembly 200 is opened. Therefore, when the anti-overflow valve assembly 200 and the opening and closing valve assembly 300 are both in an opened state, the liquid outlet channel 101 is conducted, and the flow direction of the detergent is the direction of the arrow in FIG.
  • the detergent in turn enters the liquid outlet pipe 401 through the anti-inflow valve assembly 200 and the on-off valve assembly 300, and then the detergent is transported to the washing chamber of the washing device through the connecting pipe for washing.
  • the washing device controls the extraction unit to stop running. Then, since the extraction unit no longer generates suction force at this time, the anti-infusion valve assembly 200 is closed when the external force is lost.
  • the opening and closing valve assembly 300 is opened and the anti-backfill valve assembly 200 is closed, the liquid outlet channel 101 is blocked, and the detergent stored in the liquid storage box 100 will not flow out through the opening and closing valve assembly 300, and the external liquid will also It will not be poured into the liquid storage box 100 through the opening and closing valve assembly 300, so that there will be no detergent leakage, and the situation of water overflow from the liquid storage box 100 can be avoided, which greatly improves the automatic detergent dispensing mechanism 400 The safety performance.
  • the opening and closing valve assembly 300 Since the opening and closing valve assembly 300 is always in an open state, when the extraction unit fails during the detergent dispensing process, the extraction unit cannot generate suction, and the water in the connecting pipeline may pass through the outlet.
  • the liquid pipe 401 is poured back into the liquid storage box 100, as shown in FIG. 9 is the flow direction of the water backflow.
  • an anti-backflow valve assembly 200 is arranged in the liquid outlet channel 101 of the liquid storage box 100. If the extraction unit fails to generate suction, the anti-backflow valve assembly 200 will close by itself. Therefore, even if there is a connection in the pipeline In the case of water backflow, the water will not backflow into the liquid storage box 100.
  • the liquid storage box 100 in the above solution is a box structure with a liquid storage chamber, and detergent is stored in the liquid storage chamber, and the box structure is provided with a pouring port for pouring detergent into the liquid storage chamber.
  • the liquid storage box 100 includes a liquid storage box body having a containing chamber and a replaceable liquid storage box body, and the liquid storage box body is detachably arranged in the containing chamber of the liquid storage box body to facilitate replacement of the liquid storage box body , Or take out the liquid storage box body, add detergent to the liquid storage box body, and then put it back into the liquid storage box body.
  • the anti-inflow valve assembly 200 includes a first valve seat 201 and a first valve core 202.
  • a valve seat 201 has a first valve hole 203 for passing the first valve core 202 and a first through hole 204 for passing the detergent.
  • the first valve core 202 is set in the first valve hole 203 to open/ The first through hole 204 is closed.
  • the first valve seat 201 has a hollow channel for the detergent to pass through, and a sealing connection member is provided between the first valve seat 201 and the inner side wall of the liquid outlet channel 101 to make it hermetically connected or the first valve seat 201 and the liquid outlet
  • the channel 101 is designed as an integrated structure
  • the first through hole 204 is a through hole that communicates the liquid outlet channel 101 and the inside of the first valve seat 201.
  • first through holes 204 are provided to surround the first valve hole 203.
  • the shape and number of the first through holes 204 are not limited, and round holes, square holes or irregular holes can be used to allow detergent to pass through. That's it.
  • the first valve seat 201 includes a first valve body 205 and a first valve cover 206, the first valve body 205 is in sealed connection with the liquid outlet channel 101, one end of the first valve body 205 is connected with the first valve cover 206, and the other One end is in communication with the liquid outlet channel 101, and the first valve hole 203 and the first through hole 204 are arranged on the first valve cover 206.
  • the hollow passage is provided in the first valve body 205, the outer side of the first valve body 205 is sealed and connected with the inner side of the liquid outlet channel 101, one end of the first valve body 205 is connected with the first valve cover 206, and the other end is connected with the outlet
  • the liquid channel 101 is in communication, and the first valve hole 203 and the first through hole 204 are arranged on the first valve cover 206.
  • the detergent enters the hollow channel through the first through hole 204, and when the first through hole 204 is closed, the detergent cannot enter the hollow channel through the first through hole 204.
  • the liquid in the hollow channel cannot enter the liquid storage box 100 through the first through hole 204.
  • the detergent in the liquid storage box 100 passes through the first through hole 204 on the first valve cover 201 and then enters the opening and closing valve assembly 300 located in the liquid outlet channel 101, and then passes through the opening and closing valve assembly 300.
  • the liquid port 303 flows out.
  • first valve body 205 and the first valve cover 206 are integrally formed, or are fixedly and sealedly connected.
  • the first valve core 202 includes a connecting portion 207 and a switch portion 208.
  • the connecting portion 207 is inserted through the first valve hole 203.
  • One end of the connecting portion 207 is provided with a limit portion 209, and the other end is connected to the switch portion 208.
  • 208 deforms to open the first through hole 204, and the switch part 208 resets and closes the first through hole 204.
  • the connecting portion 207 is a columnar structure
  • the limiting portion 209 is a boss structure formed by the outer side wall of the columnar structure protruding radially outwards, and the boss structure is used to engage the first valve hole 203 with each other.
  • the connecting portion 207 is restricted.
  • the connecting portion 207 and the switch portion 208 are integrally formed elastic material elements.
  • the connecting portion 207 is inserted through the first valve hole 203 and functions to fix the switch portion 208.
  • One end of the connecting portion 207 is provided with a limiting portion 209, which is clamped on the first valve hole 203, so that the switch portion 208 is held in the axial direction when the first through hole 204 is opened by deformation or when the first through hole 204 is reset and closed. relatively stable.
  • first valve cover 206 is provided with an annular groove 210
  • the switch portion 208 is an inverted umbrella-shaped structure or a conical structure, covering the lower end surface of the first valve cover 206, and maintains the original shape or deforms itself.
  • the end of the switch part 208 extends into or leaves the annular groove 210 to close/open the first through hole 204.
  • the switch portion 208 of the present invention is an inverted umbrella-shaped structure or a conical structure. Due to its own structural characteristics, the switch portion 208 covers the lower end surface of the first valve cover 206 when it is maintained in a normal state without external force.
  • the present invention is provided with an annular groove 210 on the first valve cover 206 for sealing the auxiliary switch part 208. If the extraction unit fails, the water in the washing equipment communication pipeline will be reduced. It will be poured back into the hollow channel of the first valve body 205. At this time, since the switch part 208 is covered on the lower end surface of the first valve cover 206 in a normal state, and the first through hole 204 is closed, the water will not enter the liquid storage box 100 through the first through hole 204.
  • the end of the switch part 208 is compressed in the annular groove 210 under the action of the static pressure of the water, so that the annular groove 210 faces the switch part 208. It has a restrictive effect, avoids its movement, further improves the sealing performance of the switch part 208 to the first through hole 204, and prevents water from entering the liquid storage box 100.
  • a hollow groove 211 that assists the deformation of the switch portion 208 is provided inside the connecting portion 207 for carrying the deformation of the switch portion 208. Then, when the on-off valve assembly 300 is opened, under the action of the suction force generated by the extraction unit, the switch portion 208 is deformed, that is, when the end of the switch portion 208 leaves the annular groove 210, the hollow groove 211 is the switch. The deformation of the portion 208 provides a certain deformation space, which makes it easy to deform and avoids the situation that the switch portion 208 cannot open the first through hole 204.
  • the liquid storage box 100 is a box structure with a liquid storage chamber, or, the liquid storage box 100 includes a liquid storage box body with a storage chamber and a replaceable liquid storage box body, the liquid storage box body is from The liquid storage box body is taken out of the accommodating chamber for replacement, or the liquid storage box body is taken out to add detergent to the liquid storage box body and then put back into the liquid storage box body.
  • the opening and closing valve assembly 300 only needs to be a component with a sealing function.
  • the opening and closing valve assembly 300 when the liquid storage box body is not placed in the washing device, the opening and closing valve assembly 300 is intact, and the detergent is enclosed in the liquid storage box body; when the liquid storage box body is placed in the washing device , The opening and closing valve assembly 300 is broken under the action of the push rod 402, and the opening and closing valve assembly 300 is in an open state.
  • the on-off valve assembly 300 needs to have two states.
  • the opening and closing valve assembly 300 is closed, and the detergent in the liquid storage box cannot flow out through the opening and closing valve assembly 300; when the liquid storage box is placed in When washing the equipment, the opening and closing valve assembly 300 is opened to allow the detergent to pass through; when the detergent in the liquid storage box body is used up, the liquid outlet box body is taken out of the washing equipment. At this time, the opening and closing valve assembly 300 is still required It is closed, so that when the user adds detergent to the liquid storage box, the detergent cannot flow out through the opening and closing valve assembly 300.
  • the on-off valve assembly 300 needs to have an on-off function.
  • the opening and closing valve assembly 300 includes a second valve seat 301 and a second valve core 302, and the outer side of the second valve seat 301 and the liquid outlet channel 101
  • the second valve seat 301 has a liquid outlet 303 for allowing detergent to pass through
  • the second valve core 302 extends into/out of the liquid outlet 303 to close/open the liquid outlet 303.
  • the liquid outlet 303 of the second valve seat 301 is in communication with the liquid outlet pipe 401, and the detergent can enter the liquid outlet pipe 401 through the liquid outlet 303.
  • the liquid outlet 303 is closed, including the end face seal liquid outlet 303.
  • the liquid outlet 303 is opened to realize the opening and closing of the valve assembly 300. Close and open.
  • the second valve seat 301 includes a second valve body 304 and a second valve cover 305 connected in a sealed manner.
  • One end of the second valve body 304 is provided with a second valve cover 305, and the other end is provided with a liquid outlet 303.
  • the second valve cover 305 is provided with a second valve hole 306 and a second through hole 307 for communicating with the liquid outlet channel 101.
  • One end of the second valve core 302 is axially movably arranged in the second valve hole 306, and the other One end extends into/out of the liquid outlet 303.
  • the second valve body 304 also has a hollow channel for the detergent to pass through.
  • the second valve body 304 and the second valve cover 305 are connected in a sealed manner.
  • the outside of the second valve body 304 and the second valve cover 305 are connected to the liquid Sealing connectors should also be arranged between the inner side walls of the channel 101, so that the detergent entering the opening and closing valve assembly 300 can only flow through the hollow channel of the second valve body 304, and cannot leak into the liquid outlet channel 101, so as to avoid As a result, the detergent cannot be discharged from the liquid outlet 303 after leaking into the liquid outlet channel 101 and scabs occur.
  • the second valve cover 305 is arranged at an end close to the anti-backflow valve assembly 200, and the second valve cover 305 is provided with a second through hole 307 communicating with the anti-backflow valve assembly 200 for passing the detergent.
  • the second valve cover 305 is also provided with a second valve hole 306, and the second valve core 302 penetrates through the second valve hole 306. At the same time, one end of the second valve core 302 can move axially in the second valve hole 306. It is used to drive the other end of the second valve core 302 to extend into or out of the liquid outlet 303 to close or open the liquid outlet 303.
  • the second valve core 302 includes a valve stem 308 and a plugging portion 309 connected to the valve stem 308.
  • the valve stem 308 is axially movably arranged in the second valve hole 306 to drive the plugging portion 309 to extend into /Exit the liquid outlet 303.
  • the plugging portion 309 matches the shape of the liquid outlet 303.
  • a return spring 310 is provided between the second valve core 302 and the second valve cover 305, one end of the return spring 310 is stopped on the second valve cover 305, and the other end is stopped on the blocking portion 309.
  • the blocking portion 309 moves toward the side of the anti-inflow valve assembly 200 under the action of external force, away from the liquid outlet 303, so that the liquid outlet 303 Open.
  • the blocking portion 309 compresses the return spring 310, and the valve stem 308 moves in the second valve hole 306 to the side of the anti-backflow valve assembly 200.
  • the first valve body 205 of the anti-backflow valve assembly 200 The hollow channel also provides a moving space for the valve stem 308 of the opening and closing valve assembly 300 to move.
  • the return spring 310 uses its own restoring force to move the valve stem 308 to the side of the liquid outlet 303 and at the same time drive the blocking part 309 Extend into the liquid outlet 303, and close the liquid outlet 303.
  • the liquid outlet pipe 401 is provided with a pushing unit on a side close to the liquid outlet 303, and the pushing unit pushes the blocking part 309 to exit the liquid outlet 303.
  • the pushing unit is a part that provides external force to the plugging portion 309. After the pushing unit pushes the plugging portion 309 out of the liquid outlet 303, the liquid outlet 303 is in sealed communication with the liquid outlet pipe 401, and detergent is sufficient. It enters the liquid outlet pipe 401 through the liquid outlet 303, and then enters the washing chamber of the washing device.
  • the pushing unit is a push rod 402
  • one end of the blocking portion 309 is provided with a groove 311 that is recessed toward the valve rod 308, and the push rod 402 matches the groove 311.
  • a groove 311 for matching with the push rod 402 is provided at one end of the plugging part 309 close to the liquid outlet 303, so that the push rod 402 is inserted into the groove 311 when the plugging part 309 is pushed, then the liquid
  • the port 303 and the liquid outlet pipe 401 can be seamlessly connected to improve the sealing performance of detergent dispensing.
  • the blocking portion 309 of the on-off valve assembly 300 is subjected to external force to exit the liquid outlet 303, the liquid outlet 303 is opened, and the detergent can flow out of the liquid outlet 303 ;
  • the end of the switch part 208 of the anti-inflow valve assembly 200 extends into the annular groove 210, closing the first through hole 204, so that the detergent can neither flow out from the liquid storage box 100, nor can the external liquid be poured into the storage ⁇ 100 ⁇ Liquid box 100.
  • the drawing unit In the working state of the dispensing mechanism 400 extracting the detergent in the liquid storage box 100, when the automatic dispensing mechanism 400 receives the dispensing order of the washing equipment, the drawing unit generates a suction force that can draw the detergent, and under the action of the suction force , the switch part 208 of the anti-backflow valve assembly 200 is deformed, and its end leaves the annular groove 210, the first through hole 204 is opened, and the detergent in the liquid storage box 100 passes through the first through hole 204, the second through hole 307 and The liquid outlet 303 enters the liquid outlet pipe 401.
  • the extraction unit stops operating, and the suction force generated by it disappears, then the switch part 208 of the anti-backflow valve assembly 200 resets under the action of its own restoring force , Its end will extend into the annular groove 210 again, close the first through hole 204, and return to the normal state.
  • the switch part 208 will be reset under its own restoring force, so that its end will extend into the annular groove 210 and the first through hole 204 will be closed.
  • the automatic detergent dispensing device of the present invention is provided with an anti-backflow valve assembly 200 that prevents external liquid from being poured into the liquid storage box 100. Therefore, once the extraction unit fails, the anti-backflow valve assembly 200 will discharge the liquid from the liquid storage box 100. The channel 101 is cut off to prevent the external liquid from being poured into the liquid storage box 100 and causing overflow.
  • the present invention also provides a washing device.
  • the washing device can be a laundry treatment device such as a washing machine, or a dishwasher.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Washing And Drying Of Tableware (AREA)

Abstract

一种洗涤剂自动投放装置及洗涤设备，洗涤剂自动投放装置包括储液盒（100），储液盒（100）设有出液通道（101），出液通道（101）内设有用于打开/关闭出液通道（101）的开闭阀组件（300）和用于防止外部液体倒灌进入储液盒（100）的防倒灌阀组件（200），防倒灌阀组件（200）设置在开闭阀组件（300）对应出液方向的上游。该洗涤剂自动投放装置设有防止外部液体倒灌进储液盒（100）的防倒灌阀组件（200），因此，一旦抽取单元发生故障，防倒灌阀组件（200）将储液盒（100）的出液通道（101）截止，避免外部的液体倒灌进入储液盒（100），造成溢水现象的发生。

Description

一种洗涤剂自动投放装置及洗涤设备 技术领域
本发明属于洗涤设备技术领域，具体地说，涉及一种洗涤剂自动投放装置及洗涤设备。
背景技术
随着技术的不断发展进步，洗衣机、洗碗机等洗涤设备的研发在满足人们基本洗涤要求的基础上，越来越多的注重提升用户的使用体验。越来越多的洗衣机、洗碗机具备洗涤剂自动投放功能，这样，用户在使用洗衣机洗衣时、或者使用洗碗机洗餐具时就不再需要进行手动添加洗涤剂，极大的方便了用户的使用，提升了用户的使用体验。
目前自动投放装置在进行正常工作时，通过泵等方式实现抽取储存在贮液盒中的洗涤添加剂，而后投放到洗衣机或者洗碗机的洗涤腔室中。
现有技术中，自动投放装置中贮液盒仅具有贮存洗涤添加剂，以及将贮液盒装置从自动投放装置中取出后贮液盒中的液体不会泄露。
然而，在某些故障情况下，投放装置中的水会通过吸取洗涤剂的管路倒灌进贮液盒，造成溢水等故障。
有鉴于此，特提出本发明。
发明内容
本发明要解决的技术问题在于克服现有技术的不足，提供一种防止液体倒灌的洗涤剂自动投放装置。
本发明的另外一个目的是提供一种洗涤设备，包括上述的洗涤剂自动投放 装置。
为解决上述技术问题，本发明采用技术方案的基本构思是：
一种洗涤剂自动投放装置，包括储液盒，所述储液盒设有出液通道，所述出液通道内设有：
开闭阀组件，用于打开/关闭所述出液通道；
防倒灌阀组件，所述防倒灌阀组件设置在所述开闭阀组件对应出液方向的上游，用于防止外部液体倒灌进入所述储液盒。
进一步的，所述开闭阀组件和所述防倒灌阀组件配合使所述出液通道具有第一状态和第二状态；
在所述第一状态下，所述开闭阀组件和所述防倒灌阀组件均打开，所述出液通道导通；
在所述第二状态下，所述开闭阀组件打开，所述防倒灌阀组件关闭，所述出液通道截止。
进一步的，所述防倒灌阀组件包括第一阀座和第一阀芯，所述第一阀座与所述出液通道密封连接，所述第一阀座具有用于使所述第一阀芯穿过的第一阀孔和用于使洗涤剂通过的第一通孔，所述第一阀芯设置在所述第一阀孔内打开/关闭所述第一通孔；
优选的，所述第一阀座包括第一阀体和第一阀盖，所述第一阀体与出液通道密封连接，所述第一阀体的一端与所述第一阀盖连接，另一端与所述出液通道连通，所述第一阀孔和所述第一通孔设置在所述第一阀盖上。
进一步的，所述第一阀芯包括连接部和开关部，所述连接部贯穿设置在所述第一阀孔内，所述连接部的一端设有限位部，另一端连接开关部，所述开关 部变形打开所述第一通孔，所述开关部复位关闭所述第一通孔。
进一步的，所述第一阀盖上设有环形凹槽，所述开关部为倒置的伞形结构或圆锥形结构，覆盖在第一阀盖的下端面上，其自身保持原状或发生形变使所述开关部末端伸入或离开所述环形凹槽，关闭/打开所述第一通孔；
优选的，所述连接部内部设有辅助开关部形变的中空凹槽。
进一步的，所述开闭阀组件包括第二阀座和第二阀芯，所述第二阀座与所述出液通道密封连接，所述第二阀座具有用于使洗涤剂通过的出液口，所述第二阀芯伸入/退出所述出液口关闭/打开所述出液口。
进一步的，所述第二阀座包括密封连接的第二阀体和第二阀盖，所述第二阀体的一端设置所述第二阀盖，另一端设置所述出液口，
所述第二阀盖上设有第二阀孔和用于与所述出液通道连通的第二通孔，所述第二阀芯的一端可轴向运动地设置在所述第二阀孔内，另一端伸入/退出所述出液口。
进一步的，所述第二阀芯包括阀杆和与所述阀杆连接的封堵部，所述阀杆可轴向运动地设置在所述第二阀孔内带动所述封堵部伸入/退出所述出液口；
优选的，所述第二阀芯与所述第二阀盖之间设有复位弹簧，所述复位弹簧的一端止抵在所述第二阀盖上，另一端止抵在所述封堵部上。
进一步的，还包括用于抽取洗涤剂的抽取单元；
所述抽取单元包括出液管，所述出液管与所述出液口连通，所述出液管在靠近所述出液口的一侧设有推动单元，所述推动单元推动所述封堵部退出所述出液口；
优选的，所述推动单元为推杆，所述封堵部的一端设有向所述阀杆方向内 凹的凹槽，所述推杆与所述凹槽相匹配。
一种洗涤设备，包括如上所述的一种洗涤剂自动投放装置。
采用上述技术方案后，本发明与现有技术相比具有以下有益效果。
1、本发明的洗涤剂自动投放装置设有防止外部液体倒灌进储液盒的防倒灌阀组件，因此，一旦抽取单元发生故障，防倒灌阀组件将储液盒出液通道截止，避免外部的液体倒灌进入储液盒，造成溢水现象的发生。
2、本发明利用开关部自身的恢复力作用复位，只要抽取单元的抽吸力消失，开关部的末端就会伸入环形凹槽中，关闭第一通孔，防止倒灌。
3、本发明在第一阀盖上设置了一用于辅助开关部密封的环形凹槽，那么，当水倒灌至第一阀体的中空通道处时，开关部在水的静压作用下，其末端被压紧在环形凹槽内，使环形凹槽对开关部具有一限制作用，避免其活动，进一步提高开关部对第一通孔的密封性能，防止水进入储液盒。
4、本发明在连接部内部设有辅助开关部形变的中空凹槽，用于承载开关部的变形，那么，当开闭阀组件被打开时，在抽取单元产生的抽吸力的作用下，开关部发生形变，即开关部的末端离开环形凹槽时，中空凹槽就为开关部的变形提供了一定的形变空间，使其容易变形，避免开关部无法打开第一通孔的情况发生。
下面结合附图对本发明的具体实施方式作进一步详细的描述。
附图说明
附图作为本发明的一部分，用来提供对本发明的进一步的理解，本发明的示意性实施例及其说明用于解释本发明，但不构成对本发明的不当限定。显然，下面描述中的附图仅仅是一些实施例，对于本领域普通技术人员来说，在不付 出创造性劳动的前提下，还可以根据这些附图获得其他附图。在附图中：
图1是本发明洗涤剂自动投放装置的示意图；
图2是本发明开闭阀组件和防倒灌阀组件的结构示意图；
图3是图2中结构的俯视图；
图4是图3中A-A向剖视图；
图5是图2中结构的主视图；
图6是图5中B-B向剖视图；
图7是图6中I处局部放大图；
图8是第一状态下开闭阀组件和防倒灌阀组件的结构示意图；
图9是第二状态下开闭阀组件和防倒灌阀组件的结构示意图；
图中：100、储液盒；101、出液通道；
200、防倒灌阀组件；201、第一阀座；202、第一阀芯；203、第一阀孔；204、第一通孔；205、第一阀体；206、第一阀盖；207、连接部；208、开关部；209、限位部；210、环形凹槽；211、中空凹槽；
300、开闭阀组件；301、第二阀座；302、第二阀芯；303、出液口；304、第二阀体；305、第二阀盖；306、第二阀孔；307、第二通孔；308、阀杆；309、封堵部；310、复位弹簧；311、凹槽；
400、投放机构；401、出液管；402、推杆。
需要说明的是，这些附图和文字描述并不旨在以任何方式限制本发明的构思范围，而是通过参考特定实施例为本领域技术人员说明本发明的概念。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明 实施例中的附图，对实施例中的技术方案进行清楚、完整地描述，以下实施例用于说明本发明，但不用来限制本发明的范围。
在本发明的描述中，需要说明的是，术语“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
如图1至图9所示，本发明提供一种洗涤剂自动投放装置，包括用于存放洗涤剂的储液盒100，储液盒100设有用于将洗涤剂排出的出液通道101，出液通道101内设有用于打开/关闭出液通道101的开闭阀组件300和用于防止外部液体倒灌进入储液盒100的防倒灌阀组件200，防倒灌阀组件200设置在开闭阀组件300对应出液方向的上游。
具体的，如图2至图9所示，洗涤剂自动投放装置包括用于储存洗涤剂的储液盒100和用于将储液盒100内储放的洗涤剂自动投放到洗衣机或洗碗机等洗涤设备的洗涤腔室中的投放机构400。
如图8所示，投放机构400包括抽取单元和出液管401，出液管401与出液口303连通，抽取单元将储液盒100内储放的洗涤剂抽取至出液管401中后再经连通管路进入洗涤设备的洗涤腔室中。
进一步的，抽取单元包括用于在出液管401中产生负压的文丘里管或者虹吸管等，或者泵等能够产生抽吸力的设备。
因此，开闭阀组件300和防倒灌阀组件200配合使出液通道101具有第一状态和第二状态；
在第一状态下，开闭阀组件300和防倒灌阀组件200均打开，出液通道101导通，如图8所示；
在第二状态下，开闭阀组件300打开，防倒灌阀组件200关闭，出液通道101截止，如图9所示。
详细的，由于储液盒100在洗涤设备中时，开闭阀组件300的常态即为打开状态，那么，当正常情况下，洗涤程序开始后，洗涤设备控制抽取单元运行，在抽取单元产生的抽吸力的作用下，防倒灌阀组件200被打开。因此，当防倒灌阀组件200和开闭阀组件300均处于被打开的状态下时，出液通道101导通，洗涤剂的流动方向为图8中的箭头方向，储存在储液盒100中的洗涤剂依次通过防倒灌阀组件200和开闭阀组件300进入出液管401中，再由连通管路将洗涤剂输运至洗涤设备的洗涤腔室内对待洗涤物进行洗涤。而当进入洗涤腔室内的洗涤剂的量达到设定值时，洗涤设备控制抽取单元停止运行。那么，由于此时的抽取单元不再产生抽吸力，因此，防倒灌阀组件200在失去外力作用的情况下关闭。因此，当开闭阀组件300打开，而防倒灌阀组件200关闭时，出液通道101截止，储存在储液盒100内的洗涤剂就不会通过开闭阀组件300流出，外部的液体也不会通过开闭阀组件300倒灌进入储液盒100，这样既不会出现洗涤剂泄漏的情况，又能避免水从储液盒100溢出的情况发生，极大地提高了洗涤剂自动投放机构400的安全性能。
由于开闭阀组件300始终处于打开状态，那么，在洗涤剂投放的过程中， 当抽取单元发生故障的情况下，抽取单元就不能产生抽吸力，连通管路中的水就有可能通过出液管401倒灌进储液盒100，如图9中所示为水的倒灌流动方向。本发明在储液盒100的出液通道101内设置防倒灌阀组件200，如果抽取单元发生故障不能产生抽吸力，那么防倒灌阀组件200就会自行关闭，因此，即便出现连通管路中的水倒灌的情况，水也不会倒灌进储液盒100。
进一步的，上述方案中的储液盒100为具有储液腔室的盒体结构，储液腔室内存放洗涤剂，盒体结构上设有向储液腔室内灌注洗涤剂的灌注口。或者，储液盒100包括具有容纳腔室的储液盒本体和可替换的储液盒体，储液盒体可拆卸地设置在储液盒本体的容纳腔室中，便于更换储液盒体，或者将储液盒体取出向储液盒体内添加洗涤剂后再放回储液盒本体中。
在本发明的一些实施例中，如图3至图7所示，防倒灌阀组件200包括第一阀座201和第一阀芯202，第一阀座201与出液通道101密封连接，第一阀座201具有用于使第一阀芯202穿过的第一阀孔203和用于使洗涤剂通过的第一通孔204，第一阀芯202设置在第一阀孔203内打开/关闭第一通孔204。
具体的，第一阀座201内具有中空通道供洗涤剂通过，第一阀座201与出液通道101的内侧壁之间设有密封连接件使其密封连接或者第一阀座201与出液通道101设计为一体结构，第一通孔204为连通出液通道101和第一阀座201内部的通孔，当第一阀芯202打开第一通孔204时，洗涤剂通过第一通孔204进入第一阀座201内。
在本实施例中，设置多个第一通孔204环绕第一阀孔203，第一通孔204的形状和数量不做限制，圆孔、方孔或不规则孔等能够实现使洗涤剂通过即可。
优选的，第一阀座201包括第一阀体205和第一阀盖206，第一阀体205与出液通道101密封连接，第一阀体205的一端与第一阀盖206连接，另一端与 出液通道101连通，第一阀孔203和第一通孔204设置在第一阀盖206上。
详细的，中空通道设置在第一阀体205内，第一阀体205的外侧与出液通道101的内侧密封连接，第一阀体205的一端与第一阀盖206连接，另一端与出液通道101连通，第一阀孔203和第一通孔204设置在第一阀盖206上。这样，当第一通孔204被打开时，洗涤剂通过第一通孔204进入中空通道，当第一通孔204被关闭时，洗涤剂就不能通过第一通孔204进入中空通道。反之，当第一通孔204被关闭时，中空通道内的液体也不能通过第一通孔204进入储液盒100。
上述方案中，储液盒100中的洗涤剂通过第一阀盖201上的第一通孔204后进入位于出液通道101中的开闭阀组件300内，再经由开闭阀组件300的出液口303流出。
在本实施例中，第一阀体205和第一阀盖206一体成型，或者，固定密封连接。
进一步的，第一阀芯202包括连接部207和开关部208，连接部207贯穿设置在第一阀孔203内，连接部207的一端设有限位部209，另一端连接开关部208，开关部208变形打开第一通孔204，开关部208复位关闭第一通孔204。
在本实施例中，连接部207为柱状结构，限位部209为由柱状结构的外侧壁沿径向向外凸出形成的凸台结构，利用凸台结构与第一阀孔203相互卡接对连接部207进行限位。
详细的，连接部207和开关部208为一体成型的弹性材料元件。连接部207贯穿设置在第一阀孔203内，起到固定开关部208的作用。连接部207的一端设有限位部209，限位部209卡接在第一阀孔203上，使开关部208在变形打开第一通孔204或者复位关闭第一通孔204时在轴向保持相对稳定。
进一步的，第一阀盖206上设有环形凹槽210，开关部208为倒置的伞形结构或圆锥形结构，覆盖在第一阀盖206的下端面上，其自身保持原状或发生形变使开关部208末端伸入或离开环形凹槽210，关闭/打开第一通孔204。
本发明的开关部208为倒置的伞形结构或圆锥形结构，由于自身的结构特点，开关部208在不受外力的作用保持常态时即为覆盖在第一阀盖206的下端面上。
详细的，如图9所示，本发明在第一阀盖206上设置了一用于辅助开关部208密封的环形凹槽210，若抽取单元发生故障时，洗涤设备连通管路中的水就会倒灌至第一阀体205的中空通道处。此时，由于开关部208处于常态下覆盖在第一阀盖206的下端面上，关闭第一通孔204，那么水就不会通过第一通孔204进入储液盒100。
进一步的，当水倒灌至第一阀体205的中空通道处时，开关部208在水的静压作用下，其末端被压紧在环形凹槽210内，使环形凹槽210对开关部208具有一限制作用，避免其活动，进一步提高开关部208对第一通孔204的密封性能，防止水进入储液盒100。
进一步的，如图8所示，本发明在连接部207内部设有辅助开关部208形变的中空凹槽211，用于承载开关部208的变形。那么，当开闭阀组件300被打开时，在抽取单元产生的抽吸力的作用下，开关部208发生形变，即开关部208的末端离开环形凹槽210时，中空凹槽211就为开关部208的变形提供了一定的形变空间，使其容易变形，避免开关部208无法打开第一通孔204的情况发生。
如前所述，储液盒100为具有储液腔室的盒体结构，或者，储液盒100包括具有容纳腔室的储液盒本体和可替换的储液盒体，储液盒体从储液盒本体的 容纳腔室中取出进行更换，或者将储液盒体取出向储液盒体内添加洗涤剂后再放回储液盒本体中。
当出液盒体为一次性使用品时，开闭阀组件300仅需为一具有封闭功能的元件即可。
在这种情况下，当储液盒体未放入洗涤设备中时，开闭阀组件300完好无损，将洗涤剂封闭在储液盒体中；当储液盒体被放入洗涤设置中时，开闭阀组件300在推杆402的作用下破坏，那么开闭阀组件300即处于打开的状态。
当储液盒体为可重复利用品时，开闭阀组件300就需具有两个状态。
在这种情况下，当储液盒体未放入洗涤设置时，开闭阀组件300关闭，储液盒体中的洗涤剂不能通过开闭阀组件300流出；当储液盒体被放入洗涤设备时，开闭阀组件300打开，使洗涤剂通过；当储液盒体中的洗涤剂用完时，将出液盒体从洗涤设备中取出，此时，开闭阀组件300仍需关闭，使得用户向储液盒体中添加洗涤剂时，洗涤剂不能通过开闭阀组件300流出。
因此，在此种情况下，开闭阀组件300就需要具有通断功能。那么，在本发明的一些实施例中，如图3至图9所示，开闭阀组件300包括第二阀座301和第二阀芯302，第二阀座301的外侧与出液通道101密封连接，第二阀座301具有用于使洗涤剂通过的出液口303，第二阀芯302伸入/退出出液口303关闭/打开出液口303。
具体的，第二阀座301的出液口303与出液管401连通，洗涤剂可通过出液口303进入出液管401中。第二阀芯302伸入出液口303时关闭出液口303，包括端面密封出液口303，第二阀芯302退出出液口303时打开出液口303，实现开闭阀组件300的关闭和打开。
在本实施例中，第二阀座301包括密封连接的第二阀体304和第二阀盖305，第二阀体304的一端设置第二阀盖305，另一端设置出液口303，第二阀盖305上设有第二阀孔306和用于与出液通道101连通的第二通孔307，第二阀芯302的一端可轴向运动地设置在第二阀孔306内，另一端伸入/退出出液口303。
具体的，第二阀体304同样具有中空通道供洗涤剂通过，第二阀体304和第二阀盖305密封连接，进一步的，第二阀体304和第二阀盖305的外部与出液通道101的内侧壁之间也应设置密封连接件，使进入开闭阀组件300的洗涤剂只能从第二阀体304的中空通道内流过，而不能泄露至出液通道101内，以免造成洗涤剂泄漏至出液通道101内后无法从出液口303排出而结痂的情况发生。
第二阀盖305设置在靠近防倒灌阀组件200的一端，第二阀盖305上设有与防倒灌阀组件200连通的第二通孔307，用于使洗涤剂通过。
第二阀盖305上还设置有第二阀孔306，第二阀芯302贯穿穿过第二阀孔306，同时，第二阀芯302的一端可在第二阀孔306内轴向活动，用于带动第二阀芯302的另一端伸入或退出出液口303，关闭或打开出液口303。
在本实施例中，第二阀芯302包括阀杆308和与阀杆308连接的封堵部309，阀杆308可轴向运动地设置在第二阀孔306内带动封堵部309伸入/退出出液口303。特别的，封堵部309与出液口303的形状相匹配。
进一步的，第二阀芯302与第二阀盖305之间设有复位弹簧310，复位弹簧310的一端止抵在第二阀盖305上，另一端止抵在封堵部309上。
上述方案中，如图8所示，开闭阀组件300被打开时，封堵部309在外力的作用下向防倒灌阀组件200一侧方向移动，远离出液口303，使得出液口303打开。具体为，受外力作用，封堵部309压缩复位弹簧310，阀杆308在第二阀 孔306内向防倒灌阀组件200一侧移动，此时，防倒灌阀组件200的第一阀体205的中空通道同时为开闭阀组件300的阀杆308移动提供了移动空间。
当储液盒体从洗涤设备中取出时，作用在封堵部309的外力撤销，复位弹簧310利用其自身的恢复力使阀杆308向出液口303一侧移动，同时带动封堵部309伸入出液口303，将出液口303关闭。
在本发明的一些实施例中，出液管401在靠近出液口303的一侧设有推动单元，推动单元推动封堵部309退出出液口303。
上述方案中，推动单元即为向封堵部309提供外力的零件，当推动单元将封堵部309推出出液口303后，出液口303即与出液管401密封连通，洗涤剂即可通过出液口303进入出液管401，进而进入洗涤设备的洗涤腔室。
优选的，推动单元为推杆402，封堵部309的一端设有向阀杆308方向内凹的凹槽311，推杆402与凹槽311相匹配。
上述方案中，在封堵部309靠近出液口303的一端设置用于与推杆402相匹配的凹槽311，使推杆402在推动封堵部309时插入凹槽311中，那么出液口303与出液管401即可无缝对接，提高洗涤剂投放的密封性能。
因此，如图8和图9所示，本发明的洗涤剂自动投放机构400的工作原理为：
在储液盒100与投放机构400连通状态下，开闭阀组件300的封堵部309受外力作用，退出出液口303，出液口303被打开，使洗涤剂能够从出液口303流出；防倒灌阀组件200的开关部208的末端伸入环形凹槽210中，关闭第一通孔204，使洗涤剂既不能从储液盒100中向外流出，外部的液体也不能倒灌进储液盒100。
在投放机构400抽取储液盒100内洗涤剂的工作状态下，当自动投放机构400接收到洗涤设备的投放命令后，抽取单元产生可抽取洗涤剂的抽吸力，在抽吸力的作用下，防倒灌阀组件200的开关部208发生形变，其末端离开环形凹槽210，第一通孔204被打开，储液盒100中的洗涤剂通过第一通孔204、第二通孔307和出液口303进入出液管401。当自动投放机构400接收到洗涤设备的投放结束的命令后，抽取单元停止运行，其产生的抽吸力也消失，那么，防倒灌阀组件200的开关部208在其自身的恢复力的作用下复位，其末端又将伸入环形凹槽210中，关闭第一通孔204，回到常态。
上述方案中，只要抽取单元的抽吸力消失，开关部208都会在自身的恢复力作用下复位，使其末端伸入环形凹槽210中，关闭第一通孔204。
上述方案中，本发明的洗涤剂自动投放装置设有防止外部液体倒灌进储液盒100的防倒灌阀组件200，因此，一旦抽取单元发生故障，防倒灌阀组件200将储液盒100出液通道101截止，避免外部的液体倒灌进入储液盒100，造成溢水现象的发生。
本发明还提供一种洗涤设备，洗涤设备可以是洗衣机等衣物处理设置，也可以是洗碗机等。
以上所述仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发明，任何熟悉本专利的技术人员在不脱离本发明技术方案范围内，当可利用上述提示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明方案的范围内。

Claims (10)

  1. 一种洗涤剂自动投放装置，包括储液盒，所述储液盒设有出液通道，其特征在于：所述出液通道内设有：
    开闭阀组件，用于打开/关闭所述出液通道；
    防倒灌阀组件，所述防倒灌阀组件设置在所述开闭阀组件对应出液方向的上游，用于防止外部液体倒灌进入所述储液盒。
  2. 根据权利要求1所述的一种洗涤剂自动投放装置，其特征在于：
    所述开闭阀组件和所述防倒灌阀组件配合使所述出液通道具有第一状态和第二状态；
    在所述第一状态下，所述开闭阀组件和所述防倒灌阀组件均打开，所述出液通道导通；
    在所述第二状态下，所述开闭阀组件打开，所述防倒灌阀组件关闭，所述出液通道截止。
  3. 根据权利要求2所述的一种洗涤剂自动投放装置，其特征在于：所述防倒灌阀组件包括第一阀座和第一阀芯，
    所述第一阀座与所述出液通道密封连接，所述第一阀座具有用于使所述第一阀芯穿过的第一阀孔和用于使洗涤剂通过的第一通孔，
    所述第一阀芯设置在所述第一阀孔内打开/关闭所述第一通孔；
    优选的，所述第一阀座包括第一阀体和第一阀盖，所述第一阀体与出液通道密封连接，所述第一阀体的一端与所述第一阀盖连接，另一端与所述出液通道连通，所述第一阀孔和所述第一通孔设置在所述第一阀盖上。
  4. 根据权利要求3所述的一种洗涤剂自动投放装置，其特征在于：
    所述第一阀芯包括连接部和开关部，所述连接部贯穿设置在所述第一阀孔 内，所述连接部的一端设有限位部，另一端连接开关部，
    所述开关部变形打开所述第一通孔，所述开关部复位关闭所述第一通孔。
  5. 根据权利要求4所述的一种洗涤剂自动投放装置，其特征在于：
    所述第一阀盖上设有环形凹槽，所述开关部为倒置的伞形结构或圆锥形结构，覆盖在第一阀盖的下端面上，其自身保持原状或发生形变使所述开关部末端伸入或离开所述环形凹槽，关闭/打开所述第一通孔；
    优选的，所述连接部内部设有辅助开关部形变的中空凹槽。
  6. 根据权利要求1-5任一所述的一种洗涤剂自动投放装置，其特征在于：
    所述开闭阀组件包括第二阀座和第二阀芯，所述第二阀座与所述出液通道密封连接，所述第二阀座具有用于使洗涤剂通过的出液口，所述第二阀芯伸入/退出所述出液口关闭/打开所述出液口。
  7. 根据权利要求6所述的一种洗涤剂自动投放装置，其特征在于：
    所述第二阀座包括密封连接的第二阀体和第二阀盖，所述第二阀体的一端设置所述第二阀盖，另一端设置所述出液口，
    所述第二阀盖上设有第二阀孔和用于与所述出液通道连通的第二通孔，所述第二阀芯的一端可轴向运动地设置在所述第二阀孔内，另一端伸入/退出所述出液口。
  8. 根据权利要求7所述的一种洗涤剂自动投放装置，其特征在于：
    所述第二阀芯包括阀杆和与所述阀杆连接的封堵部，所述阀杆可轴向运动地设置在所述第二阀孔内带动所述封堵部伸入/退出所述出液口；
    优选的，所述第二阀芯与所述第二阀盖之间设有复位弹簧，所述复位弹簧的一端止抵在所述第二阀盖上，另一端止抵在所述封堵部上。
  9. 根据权利要求8所述的一种洗涤剂自动投放装置，其特征在于：还包括用于抽取洗涤剂的抽取单元；
    所述抽取单元包括出液管，所述出液管与所述出液口连通，所述出液管在靠近所述出液口的一侧设有推动单元，所述推动单元推动所述封堵部退出所述出液口；
    优选的，所述推动单元为推杆，所述封堵部的一端设有向所述阀杆方向内凹的凹槽，所述推杆与所述凹槽相匹配。
  10. 一种洗涤设备，其特征在于：包括如权利要求1-9任一所述的一种洗涤剂自动投放装置。
PCT/CN2021/099646 2020-07-01 2021-06-11 一种洗涤剂自动投放装置及洗涤设备 WO2021213551A1 (zh)

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