CN218910874U

CN218910874U - Automatic throwing device and multi-drum washing machine

Info

Publication number: CN218910874U
Application number: CN202222634520.0U
Authority: CN
Inventors: 黄涛; 程宝珍; 李文伟
Original assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-04-25
Anticipated expiration: 2032-09-30

Abstract

The utility model discloses an automatic throwing device, which comprises at least two liquid storage boxes, wherein additives are contained in the liquid storage boxes; the liquid storage box is connected with the throwing waterway through a pump, and additives in the corresponding liquid storage box are pumped to the throwing waterway through the pump action; at least two water supply pipelines which can respectively convey the inlet water to the water outlets of the corresponding water supply pipelines; the throwing waterway is respectively communicated with each water supply pipeline in parallel, and the additive pumped in the throwing waterway is flushed to the water outlet of the selected water supply pipeline by utilizing the water flow flowing through the selected water supply pipeline. The utility model also discloses a multi-drum washing machine, which comprises at least two water containing drums; the automatic throwing device is arranged, each water outlet of the automatic throwing device is respectively and correspondingly communicated with each water containing cylinder, and the corresponding additive pumped into the waterway is flushed into the corresponding water containing cylinder along with the water inflow of the washing machine by utilizing water flow.

Description

Automatic throwing device and multi-drum washing machine

Technical Field

The utility model relates to a drum washing machine in the field of household appliances, in particular to a multi-drum washing machine with at least two water containing drums, and particularly relates to an automatic feeding device applied to the multi-drum washing machine and used for adding additives in the clothes treatment process.

Background

Additives such as detergent, softener, disinfectant and the like used in the washing process of the traditional washing machine are placed separately from the washing machine, a throwing device of the additives is not arranged on the washing machine, the additives cannot be automatically thrown, and the structure cannot realize the full-automatic washing control process of the washing machine. With the improvement of the automation of the washing machine, most washing machines are provided with an additive box for placing the detergent or/and the softener, which is communicated with a water inlet pipeline, and the detergent or/and the softener in the additive box is flushed into a water containing cylinder through water inlet, but the structure must firstly put the detergent or/and the softener into the additive box every time of washing, and the full-automatic washing control process is not realized.

Meanwhile, along with the improvement of living standard of people, in order to meet the purposes of diversity and high demand of clothes treatment of users, the applicant previously proposes a multi-drum washing machine, and a plurality of water containing cylinders which are mutually independent and can respectively treat clothes are arranged on the washing machine so as to respectively treat different clothes of users and meet the demands of diversity and individuation treatment of different clothes of users. Therefore, how to set an automatic throwing device to utilize the water inlet of the washing machine to throw corresponding additives into different water containing drums respectively becomes the urgent problem to be solved.

For example, the applicant applied earlier provides an automatic feeding device suitable for a multi-drum washing machine, so as to directly extract the additive in the corresponding liquid storage box by utilizing negative pressure generated by water flow, and feed the additive into the corresponding drum along with the water flow. However, in the above technical scheme, the additive is drawn from the liquid storage box into the waterway, and the additive in the waterway is thrown into the corresponding barrel, so that the negative pressure structure arranged on the waterway provides driving force, and the problems of slow throwing rate, inaccurate control in the throwing process and the like caused by small drawing force of the additive in the liquid storage box exist.

In view of this, the present utility model has been made.

Disclosure of Invention

The utility model aims to provide an automatic throwing device so as to realize the purpose of automatically throwing additives to different throwing points by using a set of device; still another object of the present utility model is to provide an automatic dispensing device, so as to achieve the purpose of improving the dispensing efficiency of the additive; another object of the present utility model is to provide a multi-drum washing machine, so as to achieve the purpose of automatically feeding different types of additives to different water-containing drums.

In order to achieve the above purpose, the utility model adopts the following specific technical scheme:

an automatic dispensing device comprises at least two liquid storage boxes 3 containing additives; the throwing waterway 10, the liquid storage box 3 is connected with the throwing waterway 10 through a pump 13, and the additive in the corresponding liquid storage box 3 is pumped to the throwing waterway 10 through the action of the pump 13; at least two water supply pipelines 2 for respectively conveying the inlet water to the water outlets of the corresponding water supply pipelines 2; the water supply paths 10 are connected to the water supply lines 2 in parallel, and the additive pumped by the pump 13 in the water supply paths 10 is flushed to the water outlet of the selected water supply line 2 by the water flow flowing through the selected water supply line 2.

Further, each water supply pipeline 2 is respectively provided with a suction structure 1, and negative pressure can be generated by water flow flowing through the corresponding water supply pipeline 2; the suction port 12 of the suction structure 1 is communicated with the outlet of the throwing waterway 10, and the additive pumped into the throwing waterway 10 is pumped into the suction structure 1 and is conveyed to the water outlet of the corresponding water supply pipeline 2 along with water flow.

Further, the suction ports 12 of each suction structure 1 are respectively communicated with the outlet of the throwing waterway 10 through connecting pipelines 4 in one-to-one correspondence, and the connecting pipelines 4 are respectively provided with one-way valves 8 for controlling fluid to flow along the throwing waterway 10 towards the suction structure 1.

Further, each water supply pipeline 2 is also connected with a flushing pipeline 6, the inlet of the water supply pipeline 10 is connected with each flushing pipeline 6, part of water flow of the water supply pipeline 2 is directly led into the water supply pipeline 10, additives in the water supply pipeline 10 are flushed, and flushing water containing the additives flows back into the water supply pipeline 2 and flows out through a water outlet.

Further, a check valve for ensuring the water flow in the pipeline to flow along the water supply pipeline 2 in a single direction of the throwing waterway is arranged on the flushing pipeline 6.

Further, a control valve for controlling the on-off of water flow in the pipeline is arranged on the flushing pipeline 6.

Further, the water outlet end of each flushing pipeline 6 is connected with the inlet of the throwing waterway 10 through the same reversing valve 9, and the reversing valve 9 is used for controlling each flushing pipeline 6 to be alternatively communicated with the throwing waterway 10.

Further, the suction structure 1 provided on the water supply line 2 is located at an upstream portion where it communicates with the flushing line 6.

Further, the outlets of the liquid storage boxes 3 are respectively communicated with the same water throwing channel 10 through pumps 13 in one-to-one correspondence, and additives stored in the corresponding liquid storage boxes 3 are pumped into the water throwing channel 10 when the pumps 13 are in a working state.

Further, the pump 13 is integrated with an on-off valve assembly; when the pump 13 is in a non-working state, the outlet of the liquid storage box 3 is disconnected from the throwing waterway 10, and the additive stored in the liquid storage box 3 can not flow into the throwing waterway 10 any more.

Further, the pump 13 is integrated with a metering assembly for metering the amount of additive pumped from the cartridge 3 into the launch waterway 10 through the pump 13.

Further, the pump 13 is integrated with a one-way valve assembly for restricting the fluid flowing through the pump 13 to flow only in a single direction along the cartridge 3 to the administration waterway 10.

Further, the water outlet ends of the water supply pipelines 2 are respectively communicated with a corresponding water outlet which is different from each other;

further, a one-way valve for ensuring the water flow in the pipeline to flow in a single direction from the water inlet source end to the water outlet end is arranged on the water supply pipeline 2.

Further, the inlet end of the water supply pipeline 2 is provided with a control valve 7 for controlling the on-off of the water flow entering the pipeline.

Further, the suction structure 1 includes a venturi tube 100 provided in the water supply line 2 capable of generating negative pressure by flowing water therethrough, and the negative pressure region 11 is provided with a suction port 12 communicating with the reservoir 3 for drawing the additive into the water supply line 2 by the negative pressure.

Further, both ends of the venturi tube 100 are connected into the corresponding water supply pipelines 2 and are correspondingly communicated with the water inlet end and the water outlet end respectively; the middle part of the venturi tube 100 is provided with a closing part with a small pipe diameter bulge, negative pressure is generated at the closing part along with the rapid increase of the flow velocity of water flow to form a negative pressure area 11, the negative pressure area 11 is provided with a connector communicated with the outside, and the connector forms a suction port 12 connected with the throwing waterway 10 and used for sucking the structure 1.

Further, a labyrinth loop which is coiled and spirally arranged and extends the axial length of the pipeline is arranged on the throwing waterway 10; the labyrinth circuit is positioned at the downstream part of the connection of the throwing waterway 10 and each liquid storage box 3.

Still another object of the present utility model is to provide a control method of an automatic dispensing device, in which when an additive is dispensed, a pump 13 corresponding to a selected liquid storage box 3 is turned on, so that the additive in the selected liquid storage box 3 is pumped into a dispensing waterway 10; the water at the water supply source flows through a selected water supply pipeline 2 to the corresponding water outlet, part of the water in the water supply pipeline 2 flows into the throwing waterway 10, the additive in the throwing waterway 10 is flushed into the selected water supply pipeline 2, and then the additive is flushed to the water outlet of the selected water supply pipeline 2 along with the water in the water supply pipeline 2.

Further, when water at the water supply source flows through a selected water supply pipeline 2 to the corresponding water outlet, the additive in the throwing waterway 10 is pumped out and enters the selected water supply pipeline 2 through the suction port 12 by utilizing the negative pressure generated when the water flows through the suction structure 1 arranged on the water supply pipeline 2, and then flows to the water outlet of the selected water supply pipeline 2 along with the water flow in the water supply pipeline 2.

Further, when the additive in the water supply channel 10 is flushed, the flushing pipeline 6 connected to the selected water supply pipeline 2 is communicated with the water supply channel 10, the liquid storage box 3 is disconnected from the water supply channel 10, and at least part of water flowing through the water supply pipeline 2 flows to the water supply channel 10 through the flushing pipeline 6 to flush the additive in the water supply channel 10.

Further, when the additive in the water supply path 10 is flushed, the water outlet end of the water supply path 10 is communicated with the suction port 12 of the suction structure 1 provided on the selected water supply pipeline 2, and the flushing water after flushing the water supply path 10 through the flushing pipeline 6 is returned from the suction port 12 into the selected water supply pipeline 2 by utilizing the negative pressure generated by the suction structure 1 and flows out along with the water flow through the water outlet of the water supply pipeline 2.

The utility model also introduces a multi-drum washing machine, which comprises at least two water containing drums 5; the automatic throwing device is provided with any one of the above water containing cylinders 5 which are communicated with water outlets of the automatic throwing device in a one-to-one correspondence manner, so that the additive extracted from the liquid storage box 3 is controllably conveyed into any water containing cylinder 5.

Further, the water inlet ends of the water supply pipelines 2 of the automatic throwing device are respectively communicated with the water inlet structure 15 of the washing machine, and the washing water supplied by the water inlet structure 15 of the washing machine is used as a water supply source of the water inlet ends of the water supply pipelines 2; the washing water selectively flows into the water supply pipeline 2, and flows into the corresponding water containing cylinder 5 from the water outlet of the water supply pipeline 2, so that the additive pumped into the corresponding water supply pipeline 2 flows into the corresponding water containing cylinder 5 along with the water inflow of the washing machine.

Compared with the prior art, the utility model has the following beneficial effects:

by the device and the method, the automatic throwing device can pump the additives in different liquid storage boxes into the throwing waterway, and the additives which are extracted in the parallel throwing waterway can be thrown to the corresponding water outlet along with the water flow by utilizing the water flow flowing through the corresponding water supply pipeline, so that the purpose that the additives in the same liquid storage box can be respectively thrown to a plurality of positions by one set of system is realized; meanwhile, the automatic feeding device is arranged on the multi-drum washing machine, so that a plurality of water containing drums of the multi-drum washing machine can share one set of additive feeding system, and the purpose that additives are controllably fed into one water containing drum along with water inflow is achieved.

In addition, through the throwing device, the pump is enabled to provide power for the additives to be pumped into the waterway from the liquid storage box, the pumping structure is enabled to provide driving force for the additives in the waterway to flow towards the water containing cylinder, the effect that different power parts correspondingly drive the additives in different stages step by step is achieved, and then the throwing control accuracy is greatly improved.

In addition, through the throwing device, in the additive throwing process, the two-stage power component drives the additive, so that the flow speed of the additive in the throwing process can be obviously improved, and the throwing efficiency is greatly improved.

In addition, through the control method, the pump and the water supply waterway can perform water inflow together, so that the steps of extracting the additive from the liquid storage box into the waterway and flushing and throwing the additive in the waterway into the water containing barrel by water flow can be synchronously operated, the time consumption of throwing is greatly reduced, and the speed is obviously improved compared with the prior art.

Meanwhile, the utility model has simple structure and obvious effect, and is suitable for popularization and use.

Drawings

The present utility model will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic view of an automatic delivery device according to an embodiment of the present utility model;

fig. 2 to 5 are schematic structural views of the embodiment of the present utility model for dispensing additives in different cartridges.

Description of main elements: 1. a suction structure; 2. a water supply line; 3. a liquid storage box; 4. a connecting pipeline; 5. a water holding cylinder; 6. flushing the pipeline; 7. a control valve; 8. a one-way valve; 9. a reversing valve; 10. throwing in a waterway; 11. a negative pressure region; 12. a suction port; 13. a pump; 14. a liquid pumping pipeline; 15. a water inlet structure; 100. a venturi tube; 101. a first venturi tube; 21. a first water supply line; 31. a first reservoir; 41. a first connecting line; 51. a water holding cylinder; 61. a first flushing line; 71. a first control valve; 81. a first one-way valve; 121. a first suction port; 131. a first pump; 141. a first liquid extraction pipeline; 102. a second venturi tube; 22. a second water supply line; 32. a second reservoir; 42. a second connecting pipeline; 52. a second water containing cylinder; 62. a second flushing line; 72. a second control valve; 82. a second one-way valve; 122. a second suction port; 132. a second pump; 142. and a second liquid pumping pipeline.

Detailed Description

As shown in fig. 1 to 5, a multi-drum washing machine is described in an embodiment of the present utility model, which includes a plurality of water-holding drums 5 independently provided from each other, each water-holding drum 5 being capable of treating laundry respectively; the washing machine is provided with a water inlet structure 15 for introducing external water flow into the washing machine; the washing machine is also provided with an automatic throwing device which throws the water inflow of the additive flowing along with the water inflow structure into the corresponding water containing cylinder 5 so as to treat clothes in the corresponding water containing cylinder 5 by using the additive thrown along with the water inflow.

In embodiments of the present utility model, the additives include, but are not limited to, the following: detergents, softeners, disinfectants, fragrances, bleaches, and the like.

As shown in fig. 1 to 5, the embodiment of the present utility model further introduces an automatic feeding device, which can be applied to the above multi-drum washing machine, and is used for feeding additives into corresponding water containing drums 5 of the washing machine; the method can also be applied to any existing equipment to put corresponding additives into any waterway flow channel in the equipment.

The automatic throwing device provided by the embodiment of the utility model comprises a liquid storage box 3, wherein additives used for processing clothes are contained in the liquid storage box; at least two water supply pipelines 2, wherein the water inlet end of each water supply pipeline 2 is communicated with the same water supply source, and the water supply source is a water inlet structure 15 of the washing machine; each water supply pipeline 2 is respectively provided with different water outlets which are in one-to-one correspondence and are communicated, so that each water supply pipeline 2 respectively conveys the inlet water to the water outlet of the corresponding pipeline; the throwing waterway 10, the liquid storage box 3 is communicated with the throwing waterway 10 through a pump 13, and additives in the corresponding liquid storage box 3 are pumped into the throwing waterway 10 under the action of the pump 13; the water supply pipe 10 is connected to each water supply pipe 2 in parallel, and the additive pumped by the pump 13 in the water supply pipe 10 is flushed to the water outlet of the selected water supply pipe 2 by the water flow flowing through the selected water supply pipe 2.

In the embodiment of the utility model, when the automatic throwing device is installed on the multi-drum washing machine, the water outlets of the water supply pipelines 2 of the automatic throwing device are communicated with the water containing drums 5 of the washing machine in a one-to-one correspondence manner, and the water supply source is provided by the water inlet structure 15 of the washing machine so that the additive is thrown into the corresponding water containing drums 5 along with the water inflow in the process of washing and water inflow into the corresponding water containing drums 5 of the multi-drum washing machine. Of course, in order to meet the design requirement of the washing machine, the number of water outlets of the automatic throwing device and the number of water containing cylinders can be set unequal, so that at least one water containing cylinder corresponds to a plurality of water outlets or at least one water outlet corresponds to a plurality of water containing cylinders.

Through the arrangement, the automatic throwing device can pump the additives in different liquid storage boxes into the throwing waterway, and the additives which are extracted in the parallel throwing waterway can be thrown to corresponding water outlets along with water flow by utilizing water flow flowing through corresponding water supply pipelines, so that the purpose that the additives in the same liquid storage box can be respectively thrown to a plurality of positions through one set of system is realized; meanwhile, the automatic feeding device is arranged on the multi-drum washing machine, so that a plurality of water containing drums of the multi-drum washing machine can share one set of additive feeding system, and the purpose that additives are controllably fed into one water containing drum along with water inflow is achieved.

The automatic throwing device provided by the embodiment of the utility model comprises at least two liquid storage boxes 3, wherein additives with different types and/or different concentrations can be respectively stored in each liquid storage box 3; of course, it is also possible to store the same additives in a portion of the cartridges 3 so that one or more of the cartridges 3 are ready for use. Each liquid storage box 3 is respectively communicated with the throwing waterway 10 through different liquid suction pipelines 14; pumps 13 are respectively arranged on the liquid pumping pipelines 14 and are used for pumping the additives in different liquid storage boxes 3 into the throwing waterway 10, so that different barrels of the washing machine share one liquid storage box 3, and various additives in one liquid storage box 3 are controllably thrown into different water containing barrels 5.

As shown in fig. 1, the present embodiment describes an automatic dispensing device comprising a liquid storage box 3 containing therein additives used in treating clothes; at least two water supply pipelines 2, the water inlet of each water supply pipeline 2 is respectively communicated with the water inlet structure 15 of the multi-drum washing machine, and the water outlet of each water supply pipeline 2 is respectively communicated with different water containing drums 5 which are in one-to-one correspondence, so that each water supply pipeline 2 respectively conveys water inlet of the washing machine into the corresponding water containing drum 5, and the aim of washing water inlet into any water containing drum 5 of the multi-drum washing machine is fulfilled. The suction structures 1 are respectively arranged on the water supply pipelines 2, and negative pressure can be generated by the inflow water flowing through the corresponding water supply pipeline 2; the suction port 12 of the suction structure 1 is communicated with the water outlet of the throwing waterway 10 through the connecting pipeline 4, so that the additive which is extracted in the throwing waterway 10 can be pumped into the suction structure 1, and the additive is thrown into the corresponding washing machine water containing cylinder 5 along with the inflow of water. In the embodiment of the utility model, when the automatic throwing device is arranged on the multi-drum washing machine, each water outlet of the automatic throwing device is communicated with each water containing barrel 5 of the washing machine in a one-to-one correspondence way, and a water supply source is provided by a water inlet structure 15 of the washing machine so that in the process of washing water inflow into the corresponding water containing barrels 5 of the multi-drum washing machine, additives are thrown into the corresponding water containing barrels 5 along with water inflow, and the aim of automatically throwing the additives along with the water inflow into the corresponding water containing barrels 5 is fulfilled.

In this embodiment, the suction structure 1 includes a venturi tube 100 provided in the water supply line 2 and capable of generating negative pressure by flowing water therethrough, and a negative pressure region 11 of the venturi tube 100 is provided with a suction port 12 communicating with the water supply line 10 and sucking the additive into the water supply line 2 by the negative pressure. In this embodiment, both ends of the venturi tube 100 are connected to the water supply pipeline 2 and are correspondingly communicated with the water inlet end and the water outlet end respectively; the middle part of the venturi tube 100 is provided with a closing-in part with the convex and the small inner tube diameter of the pipeline. Due to the rapid decrease of the inner diameter of the pipe wall of the collecting opening part, the flow velocity of the water flow in the area is suddenly increased, the collecting opening part forms a negative pressure area 11 generating negative pressure along with the flow of the water flow, the negative pressure area 11 is provided with a connector communicated with the outside, and the connector forms a suction opening 12 of the suction structure 1 communicated with the throwing waterway 10 through the connecting pipeline 4. Through the arrangement, the suction structure 1 can be directly formed by the venturi tube 100 which generates negative pressure suction effect according to the change of the flow velocity of water, so that the purpose of sucking the additive stored in the throwing waterway 10 into the water inflow of the corresponding water supply pipeline 2 along with the water inflow and throwing the additive into the water containing barrel of the washing machine is realized.

In this embodiment, the water outlets of the water supply pipelines 2 are respectively communicated with a corresponding water containing cylinder 5 which is different from each other. Preferably, the water supply pipeline 2 is provided with a one-way valve 8 (not shown in the drawing) for ensuring that water in the pipeline flows in a single direction from the water inlet source end to the water outlet end. Therefore, the automatic throwing device can feed water through different water supply channels, so as to realize the purposes of respectively feeding water and throwing additives into different water containing cylinders. It is further preferred that, as shown in fig. 1, the water inlet end of the water supply pipe 2 is provided with a control valve 7 for controlling on-off of the inflow water flow of the water supply pipe 2, and the control valve 7 is provided at the upstream portion of the suction structure 1 to realize on-off control of the inflow water at the suction structure 1.

In this embodiment, the automatic delivery device further includes a flushing pipeline 6, a water inlet end of the flushing pipeline 6 is connected to a portion of the water supply pipeline 2 downstream of the venturi tube 100, and a water outlet end of the flushing pipeline 6 is connected to a water inlet of the delivery waterway 10; the other end of the throwing waterway 10 is a water outlet which is communicated with a suction port 12 of the suction structure 1 through a connecting pipeline 4. Through the arrangement, the water flow at the water outlet end of the water supply pipeline 2 is directly led into the throwing waterway 10 and then circularly flows back to the water supply pipeline 2 through the suction structure 1, the throwing waterway 10 is flushed by using the circulating water, so that the additive pumped into the throwing waterway 10 by the pump 13 is completely flushed into the water supply pipeline 2 by using the circulating water, and the additive remained in the pipeline can be flushed, so that the additive pumped into the throwing waterway 10 by the automatic throwing device through the pump 13 can be completely discharged into the water supply pipeline 2 along with the water flow; meanwhile, the automatic throwing device can be flushed, and the purpose that additive residues influence the subsequent use of the device can be prevented.

Preferably, the flushing pipeline 6 and/or the connecting pipeline 4 can be provided with a one-way valve 8 for ensuring that the water flow in the pipeline flows along the water inlet end to the water outlet end in a single direction; in this embodiment, as shown in fig. 1, in order to avoid the diversion of the water supply pipeline to the water supply pipeline, a one-way valve 8 is provided on the connecting pipeline 4, and the one-way valve 8 is used to ensure that the liquid in the connecting pipeline 4 flows only along the water supply pipeline 10 to the single direction of the water supply pipeline 2, so as to avoid the occurrence of backflow.

Preferably, a control valve 7 for controlling the on-off of the water flow in the flushing pipe 6 and/or the connecting pipe 4 is provided to control the on-off of the water flow of the flushing water supplied from the water supply pipe 2 to the water supply pipe 10 (not shown in the drawings). In this embodiment, in order to ensure that each water supply pipeline 2 can correspondingly communicate with the water supply pipeline 10 connected with the same additive liquid storage box 3, the effect of flushing and delivering pumped additives is achieved, and the following settings are specifically performed:

as shown in fig. 1, each water supply pipeline 2 is respectively connected with a flushing pipeline 6, the water outlet ends of the flushing pipelines 6 are all connected with the same reversing valve 9, and the reversing valve 9 is also connected with the water inlet of the throwing waterway 10, so that each flushing pipeline 6 is alternatively communicated with the water inlet of the throwing waterway 2 under the control action of the reversing valve 9.

In this embodiment, the automatic dispensing device includes at least two liquid storage boxes 3, and different types of additives are respectively added in each liquid storage box 3, so as to achieve the purpose of classifying and automatically dispensing the different types of additives by the automatic dispensing device.

Two water containing drums 5 are arranged on the multi-drum washing machine below, namely a first water containing drum 51 and a second water containing drum 52; and two liquid storage boxes 3, namely a first liquid storage box 31 and a second liquid storage box 32, are used as examples for unfolding explanation, and the specific structure is as follows:

as shown in fig. 1 to 5, in the present embodiment, the water inlet end of the first water supply line 21 is provided with a first venturi tube 101, and the water outlet end is communicated with the first water containing cylinder 51. The water inlet end of the second water supply pipe 22 is provided with a second venturi tube 102, and the water outlet end is communicated with the second water containing cylinder 52. The water outlet ends of the first water supply pipeline 21 and the second water supply pipeline 22 are respectively provided with an interface, and the two interfaces are respectively communicated with the water inlet end of a flushing pipeline 6; the water outlet ends of the two flushing pipelines 6 are communicated with the same reversing valve 9, the reversing valve 9 is provided with two inlets and an outlet, the two inlets are respectively communicated with the water outlet ends of the first flushing pipeline 61 and the second flushing pipeline 62, the outlet is communicated with the water inlet of the throwing waterway 10, the reversing valve 9 is provided with two states, and the two inlets are respectively communicated with the outlet alternatively, so that the first flushing pipeline 61 and the second flushing pipeline 62 are respectively communicated with the throwing waterway 10.

In this embodiment, the water outlet of the water throwing channel 10 is respectively communicated with the first suction port 121 of the first venturi tube 101 through the first connecting pipeline 41 provided with the first check valve 81, and is communicated with the second suction port 122 of the second venturi tube 102 through the second connecting pipeline 42 provided with the second check valve 82. In this embodiment, in order to avoid the backflow of the water flow in the water supply pipeline 2 from the suction port 12 to the water supply pipeline 10, the two connecting pipelines 4 are respectively provided with the one-way valve 8, so that the flow direction of the liquid in the pipeline is controlled by the one-way valve 8, the liquid in the pipeline always flows in a single direction towards one side of the venturi 100, and the situation that the water inflow in the water supply pipeline 2 directly flows into the water supply pipeline 10 from the connecting pipeline 4 is avoided.

In this embodiment, the first liquid storage box 31 is connected to the water supply channel 10 through a first liquid pumping pipeline 141 provided with a first pump 131, and the second liquid storage box 32 is connected to the water supply channel 10 through a second liquid pumping pipeline 142 provided with a second pump 132; preferably, in order to avoid the problem that the liquid in the water throwing channel 10 flows back into the liquid storage box 3, the one-way valve 8 can be additionally arranged on the liquid pumping pipeline 14 provided with the pump 13, and the pump 13 can be directly integrated with the one-way valve assembly, or the one-way valve assembly and the like can be integrally arranged at the liquid outlet of the liquid storage box 3, so that the situation that the liquid flows back into the liquid storage box is prevented.

When the additive A in the first liquid storage box 31 is put into the first water containing cylinder 51, the automatic putting device is in the following state:

as shown in fig. 2, the outlet of the reversing valve 9 is connected to the first inlet and disconnected from the second inlet, the first pump 131 is operated, the second pump 132 is not operated, the first control valve 71 is opened, the second control valve 72 is closed, at this time, the delivery waterway 10 connects the first connecting pipe 41 and the first flushing pipe 61, the additive a in the first reservoir 31 is acted by the first pump 131 and pumped into the delivery waterway 10 through the first pumping pipe 141, the water flow in the first water supply pipe 21 flows through the first venturi 101, and the first venturi 101 pumps the additive a pumped in the delivery waterway 10 into the first water supply pipe 21 and flows into the first water containing drum 51 along with the water flow in the first water supply pipe 21. Meanwhile, part of the water inflow in the first water supply pipeline 21 enters the throwing waterway 10 to flush the throwing waterway 10, and flushing water flows back into the first water supply pipeline 21 through the first venturi tube 101 and flows into the first water containing barrel 51 from the water outlet along with the water inflow.

When the additive B in the second liquid storage box 32 is put into the first water containing cylinder 51, the automatic putting device is in the following state:

As shown in fig. 3, the outlet of the reversing valve 9 is connected to the first inlet and disconnected from the second inlet, the first pump 131 is not operated, the second pump 132 is operated, the first control valve 71 is opened, the second control valve 72 is closed, at this time, the delivery waterway 10 connects the first connecting pipe 41 and the first flushing pipe 61, the additive B in the second reservoir 32 is acted by the second pump 132 and pumped into the delivery waterway 10 through the second pumping pipe 142, the water flow in the first water supply pipe 21 flows through the first venturi 101, and the first venturi 101 pumps the additive B pumped in the delivery waterway 10 into the first water supply pipe 21 and flows into the first water containing barrel 51 along with the water flow in the first water supply pipe 21. Meanwhile, part of the water inflow in the first water supply pipeline 21 enters the throwing waterway 10 to flush the throwing waterway 10, and flushing water flows back into the first water supply pipeline 21 through the first venturi tube 101 and flows into the first water containing barrel 51 from the water outlet along with the water inflow.

When the additive A in the first liquid storage box 31 is put into the second water containing cylinder 52, the automatic putting device is in the following state:

as shown in fig. 4, the outlet of the reversing valve 9 is disconnected from the first inlet and is connected to the second inlet, the first pump 131 is operated, the second pump 132 is not operated, the first control valve 71 is closed, and the second control valve 72 is opened, at this time, the discharge waterway 10 connects the second connecting pipeline 42 and the second flushing pipeline 62, the additive a in the first reservoir 31 is pumped into the discharge waterway 10 by the first pump 131, the water flow in the second water supply pipeline 22 flows through the second venturi 102, and the second venturi 102 pumps the additive a pumped in the discharge waterway 10 into the second water supply pipeline 22 and flows into the second water holding cylinder 52 along with the water flow in the second water supply pipeline 22. Meanwhile, part of the water inflow in the second water supply pipeline 22 enters the throwing waterway 10 to flush the throwing waterway 10, and flushing water flows back into the second water supply pipeline 22 through the second venturi tube 102 and flows into the second water containing barrel 52 from the water outlet along with the water inflow.

When the additive B in the second liquid storage box 32 is put into the second water containing cylinder 52, the automatic putting device is in the following state:

as shown in fig. 5, the outlet of the reversing valve 9 is disconnected from the first inlet and is connected to the second inlet, the first pump 131 is not operated, the second pump 132 is operated, the first control valve 71 is closed, and the second control valve 72 is opened, at this time, the discharge waterway 10 connects the second connecting pipeline 42 and the second flushing pipeline 62, the additive B in the second reservoir 32 is pumped into the discharge waterway 10 by the second pump 132, the water flow in the second water supply pipeline 22 flows through the second venturi tube 102, and the second venturi tube 102 pumps the additive B pumped in the discharge waterway 10 into the second water supply pipeline 22 and flows into the second water holding tube 52 along with the water flow in the second water supply pipeline 22. Meanwhile, part of the water inflow in the second water supply pipeline 22 enters the throwing waterway 10 to flush the throwing waterway 10, and flushing water flows back into the second water supply pipeline 22 through the second venturi tube 102 and flows into the second water containing barrel 52 from the water outlet along with the water inflow.

In this embodiment, in order to increase the amount of additive to be added to the automatic adding device for a single addition, a labyrinth circuit may be further disposed on the adding waterway 10; the labyrinth loop is formed by a flow channel which is coiled and spirally arranged and is used for prolonging the axial length of the pipeline; the labyrinth circuit is located at one end of the putting waterway 10 connected with the connecting pipelines 4, and is located at the downstream part of the communicating part of each liquid storage box 3 and the putting waterway 10 through the pump 13, so that the water inlet end of the labyrinth circuit is connected with each liquid storage box 3 at the upstream, and the water outlet end is respectively communicated with the inlet of each connecting pipeline 4 (not shown in the drawing).

In this embodiment, in order to implement metering detection of the amount of additive to be added, the following settings may be made: the connecting pipeline 4 between the labyrinth circuit and the suction port 12 of the suction structure is provided with a metering device for detecting the flow of the flowing liquid. Of course, in the embodiment of the present utility model, in order to simplify the structure, the metering component may be directly integrated on the pump 13, so that the pump 13 is a metering pump, and the parameters of the pump 13 are used to directly meter the amount of the additive. The pump 13 may be any existing metering pump with metering function, for example: and counting any parameter such as the rotation number, the rotation speed, the time, the power and the like of the impeller in the pump to indirectly obtain the dosing metering pump and the like.

The embodiment also introduces a control method applied to the automatic feeding device, when the additive is fed, the pump 13 corresponding to the selected liquid storage box 3 is started when the additive is fed, so that the additive in the selected liquid storage box 3 is pumped into the feeding waterway 10; the water at the water supply source flows through a selected water supply pipeline 2 to the corresponding water outlet, part of the water in the water supply pipeline 2 flows into the throwing waterway 10, the additive in the throwing waterway 10 is flushed into the selected water supply pipeline 2, and then the additive is flushed to the water outlet of the selected water supply pipeline 2 along with the water in the water supply pipeline 2.

In this embodiment, the step of pumping the additive in the liquid storage box 3 into the water supply channel 10 through the pump 13 and flushing the additive in the water supply channel 10 into the water containing cylinder 5 by water inflow into the water supply pipeline 2 may be synchronously performed; alternatively, the step of pumping the additive in the liquid storage tank 3 into the water supply channel 10 via the pump 13 and introducing water into the water supply channel 2 to flush the additive in the water supply channel 10 into the water containing tube 5 may be performed.

Therefore, the control method of the utility model has more diversified throwing modes relative to the technology, and can realize different throwing logics. In particular, through the arrangement, when the additive is put in, the steps of pumping the additive in the liquid storage box into the waterway through the pump and flushing the additive in the waterway into the water containing cylinder can be synchronously executed, so that the putting process is simpler and the time consumption is shorter.

In this embodiment, when water at the water supply source flows through a selected water supply pipeline 2 to the corresponding water outlet, the additive in the water supply pipeline 10 is pumped out by utilizing the negative pressure generated when the water flows through the suction structure 1 arranged on the water supply pipeline 2, enters the corresponding water supply pipeline 2 through the suction port 12, and then is flushed to the water outlet of the selected water supply pipeline 2 along with the water flow in the water supply pipeline 2. Through the arrangement, the additive is put into the waterway and is provided with power by the pump, and the waterway enters the barrel and is provided with power by the suction structure arranged on the waterway, so that the flow rate of the additive is improved, and the put reaction efficiency is further improved.

Preferably, in this embodiment, when the additive in the water supply channel 10 is flushed, the flushing pipeline 6 connected to the selected water supply pipeline 2 is communicated with the water supply channel 10, the liquid storage box 3 is disconnected from the water supply channel 10, water flows through the flushing pipeline 6 and at least part of water flows to the water supply channel 10, the additive in the water supply channel 10, which has been pumped by the pump 13 and is pumped by the liquid storage box 3, is flushed, and the flushing water containing the additive flows back into the water supply pipeline 2, so that the additive in the water supply channel 10 can be completely flushed by using circulating flushing water in the additive throwing process, and the effect of preventing the additive in the water supply channel from remaining is further realized.

In this embodiment, when the additive in the water supply channel 10 is flushed, the water outlet end of the water supply channel 10 is communicated with the suction port 12 of the suction structure 1 arranged on the selected water supply pipeline 2, so that after the water supply channel 10 is flushed through the flushing pipeline 6, the flushing water flowing back to the selected water supply pipeline 2 from the suction port 12 can flow out through the water outlet of the selected water supply pipeline 2, and further, the water supply to the two water supply pipelines 2 is switched, so that the effect of respectively performing additive delivery into different water containing cylinders 5 can be realized, and the diversity of additive delivery is further improved.

In this embodiment, during normal water intake of the washing machine: the water inlet structure 15 of the washing machine is used for feeding water into the corresponding water containing cylinder 5 through the selected water supply pipeline 2, part of the water inlet water flow can flow through the throwing waterway 10, and the part of the water flow can flush the throwing waterway 10, so that the water inlet of the water containing cylinder 5 through the water supply pipeline 2 and the flushing of the throwing waterway 10 can be synchronously executed.

In this embodiment, the automatic dispensing device may perform separate dispensing of different types of additives stored in each liquid storage box 3. When the automatic throwing device throws the additive, the suction port 12 is alternatively communicated with the throwing waterway 10, and the pump 13 opposite to each liquid storage box 3 is alternatively started, so that the corresponding liquid storage box 3 is communicated with the water supply pipeline 10, the additive pump 13 stored in the corresponding liquid storage box 3 is sent into the throwing waterway 10 and is flushed into the corresponding water supply pipeline 2 along with the inflow water by the suction structure 1, and the inflow water flowing along with the water supply pipeline 2 enters the corresponding water containing barrel 5.

Two water containing drums 5 are arranged on the multi-drum washing machine below, namely a first water containing drum 51 and a second water containing drum 52; and two liquid storage boxes 3, which are a first liquid storage box 31 and a second liquid storage box 32, are taken as examples for unfolding explanation, and the specific control method is as follows:

When the additive a stored in the first reservoir 31 is put into the first water container 51,

as shown in fig. 2, the first water supply line 21 of the automatic adding device is fed into the first water container 51, and during the water feeding process, the first pump 131 connected to the outlet of the first liquid storage box 31 is turned on, and the first pump 131 pumps the additive a stored in the first liquid storage box 31 to the water-throwing path 10; when the first venturi tube 101 flows in the first water supply pipeline 21, negative pressure is generated, and the additive A in the throwing waterway 10 is pumped into the first water supply pipeline 21 by the negative pressure and flows into the first water containing cylinder 51 along with the inflow water; in the above process, part of the water in the first water supply line 21 flows into the first venturi 101 through the first flushing line 61, the putting waterway 10 and the first connecting line 41 to flush the additive a remaining in the pumping structure 1 and the putting waterway 10, so that the additive a pumped into the putting waterway 10 by the first pump 131 is completely flushed into the first water container 51 along with the flushing water flow.

When the additive a stored in the first cartridge 31 is put into the second water container 52,

as shown in fig. 4, the second water supply line 22 of the automatic adding device is fed into the second water container 52, and during the water feeding process, the first pump 131 provided at the outlet of the first liquid storage box 31 is turned on, and the first pump 131 pumps the additive a stored in the first liquid storage box 31 to the water-throwing channel 10; when the second venturi tube 102 flows through the second water supply pipeline 22, negative pressure is generated, and the additive A in the throwing waterway 10 is pumped into the second water supply pipeline 22 by the negative pressure and flows into the second water containing barrel 52 along with the inflow water; in the above process, part of the water in the second water supply pipeline 22 flows into the second venturi tube 102 through the second flushing pipeline 62, the throwing waterway 10 and the second connecting pipeline 42 to flush the additive a remaining in the suction structure 1 and the throwing waterway 10, so that the additive a pumped into the throwing waterway 10 by the first pump 131 is completely flushed into the second water containing cylinder 52 along with the flushing water flow.

When the additive B stored in the second liquid storage box 32 is put into the first water containing cylinder 51,

as shown in fig. 3, the first water supply line 21 of the automatic adding device is configured to feed water into the first water tank 51, and during the water feeding process, the second pump 132 provided at the outlet of the second liquid storage box 32 is turned on, and the second pump 132 pumps the additive B stored in the second liquid storage box 32 to the water-throwing channel 10; when the first venturi tube 101 flows in the first water supply pipeline 21, negative pressure is generated, and the additive B in the throwing waterway 10 is pumped into the first water supply pipeline 21 by the negative pressure and flows into the first water containing cylinder 51 along with the inflow water; in the above process, part of the water in the first water supply pipeline 21 flows into the first venturi tube 101 through the first flushing pipeline 61, the throwing waterway 10 and the first connecting pipeline 41 to flush the additive B remained in the suction structure 1 and the throwing waterway 10, so that the additive B pumped into the throwing waterway 10 by the second pump 132 is completely flushed into the first water container 51 along with the flushing water flow.

When additive B stored in the second reservoir 32 is dispensed into the second cartridge 52,

as shown in fig. 5, the second water supply line 22 of the automatic adding device is configured to supply water into the second water tank 52, and during the water supply process, the second pump 132 provided at the outlet of the second liquid storage box 32 is turned on, and the second pump 132 pumps the additive B stored in the second liquid storage box 32 to the water supply path 10; negative pressure is generated when the second venturi tube 102 flows through the second water supply pipeline 22, and the additive B in the throwing waterway 10 is pumped into the second water supply pipeline 22 by the negative pressure and flows into the second water containing cylinder 52 along with the inflow water; in the above process, part of the water in the second water supply pipeline 22 flows into the second venturi tube 102 through the second flushing pipeline 62, the throwing waterway 10 and the second connecting pipeline 42 to flush the additive B remained in the suction structure 1 and the throwing waterway 10, so that the additive B pumped into the throwing waterway 10 by the second pump 132 is completely flushed into the second water container 52 along with the flushing water flow.

The foregoing description is only illustrative of the preferred embodiment of the present utility model, and is not to be construed as limiting the utility model, but is to be construed as limiting the utility model to any and all simple modifications, equivalent variations and adaptations of the embodiments described above, which are within the scope of the utility model, may be made by those skilled in the art without departing from the scope of the utility model.

Claims

1. An automatic delivery device, characterized in that: comprising the steps of (a) a step of,

a liquid storage box (3) which contains an additive;

the liquid storage box (3) is connected with the throwing waterway (10) through a pump (13), and additives in the liquid storage box (3) are pumped to the throwing waterway (10) through the action of the pump (13);

at least two water supply pipelines (2) which can respectively convey the inlet water to the water outlets of the corresponding water supply pipelines (2);

the throwing waterway (10) is respectively connected with each water supply pipeline (2) in parallel, and the additive extracted by the pump (13) in the throwing waterway (10) is flushed to the water outlet of the selected water supply pipeline (2) by utilizing the water flow flowing through the selected water supply pipeline (2).

2. The automatic delivery device of claim 1, wherein:

the water supply pipelines (2) are respectively provided with a suction structure (1), and negative pressure can be generated by water flow flowing through the corresponding water supply pipeline (2); the suction port (12) of the suction structure (1) is communicated with the outlet of the throwing waterway (10), and the additive pumped into the throwing waterway (10) is pumped into the suction structure (1) and is conveyed to the water outlet of the corresponding water supply pipeline (2) along with water flow.

3. The automatic delivery device of claim 2, wherein:

the suction ports (12) of the suction structures (1) are respectively communicated with the outlets of the throwing waterways (10) through connecting pipelines (4) in one-to-one correspondence, and one-way valves (8) are respectively arranged on the connecting pipelines (4) and used for controlling fluid to flow towards the suction structures (1) only along the throwing waterways (10).

4. An automatic delivery device according to any one of claims 1 to 3, wherein:

the water supply pipelines (2) are also respectively connected with a flushing pipeline (6), the inlet of the water supply pipeline (10) is connected with the flushing pipelines (6), partial water flow of the water supply pipeline (2) is directly led into the water supply pipeline (10), additives in the water supply pipeline (10) are flushed, and then the flushing water flows back into the water supply pipeline (2) and flows out through the water outlet.

5. The automatic delivery device of claim 4, wherein:

a one-way valve for ensuring the water flow in the pipeline to flow along the water supply pipeline (2) in a single direction of the throwing waterway is arranged on the flushing pipeline (6);

and/or a control valve for controlling the on-off of water flow in the pipeline is arranged on the flushing pipeline (6).

6. The automatic delivery device of claim 4, wherein: the water outlet end of each flushing pipeline (6) is connected with the inlet of the throwing waterway (10) through the same reversing valve (9), and the reversing valve (9) is used for controlling one flushing pipeline (6) to be communicated with the throwing waterway (10).

7. The automatic delivery device of claim 4, wherein: the suction structure (1) arranged on the water supply pipeline (2) is positioned at the upstream part of the communication part with the flushing pipeline (6).

8. An automatic delivery device according to any one of claims 1 to 3, wherein: the water dispenser comprises more than two liquid storage boxes, wherein outlets of the liquid storage boxes (3) are respectively communicated with the same water dispenser waterway (10) through pumps (13) in one-to-one correspondence, and additives stored in the corresponding liquid storage boxes (3) are pumped into the water dispenser waterway (10) when the pumps (13) are in a working state.

9. The automatic delivery device of claim 8, wherein: the pump (13) is integrated with an on-off valve assembly; when the pump (13) is in a non-working state, the outlet of the liquid storage box (3) is disconnected with the throwing waterway (10), and the additive stored in the liquid storage box (3) can not flow into the throwing waterway (10) any more;

And/or the pump (13) is integrated with a metering assembly for metering the amount of additive pumped from the reservoir (3) into the launch waterway (10) through the pump (13);

and/or the pump (13) is integrated with a one-way valve assembly for restricting the fluid flowing through the pump (13) to flow only in a single direction along the reservoir (3) towards the launch waterway (10).

10. An automatic delivery device according to any one of claims 1 to 3, wherein: the water outlet ends of the water supply pipelines (2) are respectively communicated with a corresponding water outlet which is different from each other.

11. The automatic delivery device of claim 10, wherein: a one-way valve for ensuring the water flow in the pipeline to flow in a single direction from the water inlet source end to the water outlet end is arranged on the water supply pipeline (2);

and/or the inlet end of the water supply pipeline (2) is provided with a control valve (7) for controlling the on-off of water flow entering the pipeline.

12. An automatic delivery device according to claim 2 or 3, wherein: the suction structure (1) comprises a venturi tube (100) which is arranged in the water supply pipeline (2) and can generate negative pressure through water flow, and the negative pressure region (11) is provided with a suction port (12) which is communicated with the liquid storage box (3) and is used for sucking the additive into the water supply pipeline (2) by utilizing the negative pressure;

Both ends of the venturi tube (100) are connected into corresponding water supply pipelines (2) and are correspondingly communicated with the water inlet end and the water outlet end respectively; the middle part of venturi (100) is equipped with the convergent part that the pipe diameter is protruding to become to reduce, and convergent part department produces negative pressure along with the velocity of flow surge of rivers and constitutes negative pressure region (11), and negative pressure region (11) are equipped with the interface that is linked together with outside, and the interface constitutes with throw in water route (10) continuous, suction mouth (12) of suction structure (1).

13. An automatic delivery device according to any one of claims 1 to 3, wherein: a labyrinth loop which is coiled and spirally arranged and extends the axial length of the pipeline is arranged on the throwing waterway (10); the labyrinth loop is positioned at the downstream part of the connection part of the throwing waterway (10) and each liquid storage box (3).

14. A multi-drum washing machine comprising at least two water-containing drums (5); the method is characterized in that: an automatic throwing device as claimed in any one of claims 1 to 13 is arranged, and each water containing cylinder (5) is respectively communicated with each water outlet of the automatic throwing device in a one-to-one correspondence manner so as to controllably convey the additive extracted from the liquid storage box (3) into any water containing cylinder (5).

15. The multi-drum washing machine as claimed in claim 14, wherein: the water inlet ends of the water supply pipelines (2) of the automatic throwing device are respectively communicated with a water inlet structure (15) of the washing machine, and washing water supplied by the water inlet structure (15) of the washing machine is used as a water supply source of the water inlet ends of the water supply pipelines (2); washing water selectively flows into the water supply pipeline (2) from the water outlet of the water supply pipeline (2) to the corresponding water containing cylinder (5) so as to flow the additive pumped into the corresponding water supply pipeline (2) into the corresponding water containing cylinder (5) along with the water inflow of the washing machine.