CN211571119U

CN211571119U - Additive feeding device and washing machine

Info

Publication number: CN211571119U
Application number: CN201921116894.5U
Authority: CN
Inventors: 黄涛; 程宝珍; 张华成
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: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-09-25
Anticipated expiration: 2029-07-16

Abstract

The utility model discloses an additive feeding device, which comprises a water supply pipeline; a reservoir containing an additive therein; and the suction structure is used for stopping the suction power and sucking the additive in the liquid storage box to the water supply pipeline or forming a back flushing branch connected with the water supply pipeline in parallel. Through the arrangement, the automatic feeding device can realize the effects of sucking additives in a water supply pipeline and flushing the sucking structure for switching use through the sucking structure, simplifies the structure, and avoids the problem of additive retention after use. And simultaneously, the utility model discloses still include a washing machine, install foretell additive and put in the device.

Description

Additive feeding device and washing machine

Technical Field

The utility model relates to a washing machine in the household appliance field especially relates to an use washing machine, be used for adding the automatic device of puting in of clothing processing procedure additive.

Background

The traditional washing machine has the advantages that additives such as detergent, softening agent, disinfectant and the like used in the washing process are separately arranged from the washing machine, a feeding device for the additives is not arranged on the washing machine, the additives cannot be automatically fed, 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 of the washing machines are provided with an additive box for placing detergent or/and softener, which is communicated with a water inlet pipeline, and the detergent or/and softener in the additive box is flushed into a water containing barrel through water inlet, but the structure needs to firstly place the detergent or/and softener into the additive box every time washing is carried out, and a full-automatic washing control process is not realized.

At present, there are a lot of patent applications related to automatic additive feeding devices, for example, a Chinese patent discloses a detergent feeding device for a washing machine, which is characterized in that a container matched with a bottle is arranged on a box body of the washing machine, the bottom of the container is a conical through hole, a vertical fixing piece is fixed on the through hole, a washing liquid conduit is fixed on the vertical fixing piece, the bottle body is matched with the container, a conical leading-in pipe is arranged on a bottle mouth, and a ventilation port is arranged at the bottom of the bottle body. This structure cannot control the amount of detergent added and is easily damaged to waste detergent.

Still another chinese patent application discloses a detergent supply apparatus for a washing machine having a detergent box of a siphon unit, which injects detergent into the detergent box, and discharges the detergent in the box into a washing tub from the siphon unit after diluting the detergent by injecting wash water into the detergent box. The utility model discloses a solve the problem that concentrated detergent directly gets into the damage that the washtub was taken the clothing, but can't realize the automatic additive accurate control of detergent.

However, after the existing automatic additive feeding device is used, the additive remains in the internal pipeline of the device to cause blockage and influence the next use of the additive feeding device; meanwhile, the existing automatic additive feeding device generally has the problems of complex structure, excessive control structure and the like, so that the automatic feeding device is too high in cost and cannot be popularized.

In view of this, the present invention is especially provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an automatic additive feeding device, which is used for realizing the purpose of automatically feeding additives; another object of the present invention is to provide an automatic additive feeding device to clean the pumping mechanism; another object of the utility model is to provide a washing machine to the realization provides the water inflow of multiple form, carries out the purpose of corresponding input to different types of additives to flourishing water drum.

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

an additive delivery device, comprising a water supply line; a reservoir containing an additive therein; and the suction structure is used for stopping the suction power and sucking the additive in the liquid storage box to the water supply pipeline or forming a back flushing branch connected with the water supply pipeline in parallel.

Furthermore, the suction structure comprises a pump for providing suction power, the outlet end of the pump is communicated with the water supply pipeline, the inlet end of the pump is connected with the liquid storage box through a liquid suction pipeline and is connected with the water supply pipeline through a connecting pipeline, and a control device for controlling the flow direction and/or the on-off of liquid in the pipeline is arranged on the liquid suction pipeline and/or the connecting pipeline; preferably, the location where the outlet end of the pump communicates with the water supply line is upstream of the location where the connecting line communicates with the water supply line.

Furthermore, a first one-way check valve is arranged on the connecting pipeline and is used for controlling liquid in the pipeline to flow from the inlet end of the pump to the water supply pipeline; the suction pipeline is provided with a second one-way check valve which controls the liquid in the pipeline to flow only from the liquid storage box to the inlet end of the pump.

Furthermore, when the pump is in a non-working state and stops providing suction power, the pump forms a communication pipeline through which water flows freely and performs back flushing on the inside of the communication pipeline; when the pump is in working state, it can provide the pumping power from inlet end to outlet end of pump.

Further, a liquid storage cavity for temporarily storing the additive pumped into the water supply pipeline by the suction structure is arranged on the water supply pipeline; preferably, the outlet end of the pump is communicated with the liquid storage cavity.

Furthermore, a water inlet valve for controlling the on-off of the water flow of the supplied water is arranged on the water supply pipeline, and the water inlet valve is arranged at the upstream of the position where the suction structure is communicated with the water supply pipeline; preferably, the inlet valve is provided on the water supply line upstream of the reservoir chamber.

Further, a first water supply pipeline and a second water supply pipeline which are connected in parallel are included, and the first water supply pipeline and/or the second water supply pipeline are/is connected with the suction structure.

Further, the first water supply pipeline and the second water supply pipeline are communicated with any one of the plurality of water outlet branches in a reversible manner through the opposite flushing mechanism.

Preferably, the water outlet ends of the first water supply pipeline and the second water supply pipeline are arranged on the same side of the hedging mechanism in a staggered manner by an inclination angle, and the water inlet ends of the first water outlet branch, the second water outlet branch and the third water outlet branch are positioned on the other side of the hedging mechanism; the water outlet end of the first water supply pipeline is coaxially opposite to the water inlet end of the first water outlet branch and is arranged at intervals, and when the first water supply pipeline supplies water independently, water flows of the water supply pipeline are sprayed out from the water outlet end of the first water supply pipeline and flow into the water inlet end of the first water outlet branch; the water outlet end of the second water supply pipeline is coaxially opposite to the water inlet end of the second water outlet branch and is arranged at intervals, and when the second water supply pipeline supplies water independently, water flows for supplying water are sprayed out from the water outlet end of the second water supply pipeline and flow into the water inlet end of the second water outlet branch; the third goes out water branch road and intakes the end and is in first play water branch road and intake between the end and the second play water branch road is intake, and two water flows when first water supply pipeline and second water supply pipeline supply water simultaneously interfere each other and merge into same one and supply water rivers, supply water rivers and flow into the third and go out water branch road and intake the end.

The utility model also provides a washing machine installs the aforesaid arbitrary additive input device, the water supply pipe of additive input device links to each other with the flourishing water drum of washing machine to carry the additive that the suction structure was taken out from the liquid storage box to flourishing water drum.

Furthermore, the washing machine is provided with a spraying device for spraying water into the water containing barrel, a softener throwing port for flowing softener into the water containing barrel and a washing throwing port for flowing detergent or washing powder into the water containing barrel, wherein the water outlet end of the first water outlet branch of the additive throwing device is communicated with the washing throwing port, the water outlet end of the second water outlet branch is communicated with the spraying device, and the water outlet end of the third water outlet branch is communicated with the softener throwing port.

Compared with the prior art, the utility model beneficial effect as follows:

through the arrangement, the automatic feeding device can realize the effects of sucking additives in a water supply pipeline and flushing the sucking structure for switching use through the sucking structure, simplifies the structure, and avoids the problem of additive retention after use.

In addition, the pumping structure in this application only installs two one-way check valves through carrying out rational design to constituting the pipeline connected mode, realizes the switching of liquid flow direction in the internal pipeline just to the machine of stopping opening of accessible power pack, realizes to pump the additive in the water supply pipeline, wash the effect of switching use to the pumping structure.

In addition, a plurality of water supply pipelines and water outlet branches which are connected through the hedging mechanism are arranged on the additive feeding device, the water flow form of the automatic feeding device is enriched, and the using effect that the automatic feeding device respectively provides corresponding water inflow when different washing programs of the washing machine are achieved.

And simultaneously, the utility model discloses simple structure, the effect is showing, suitable using widely.

Drawings

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

Fig. 1 to fig. 3 are schematic structural diagrams of an automatic additive feeding device according to different embodiments of the present invention.

Description of the main elements: the liquid storage device comprises a water supply pipeline, a liquid storage box, a liquid storage cavity, a first one-way check valve, a second one-way check valve, a pump, a connecting pipeline, a suction pipeline, a liquid pumping pipeline, a counter flushing mechanism, a first water supply pipeline, a second water supply pipeline, a first water outlet branch, a second water outlet branch, a third water outlet branch, a water inlet valve, a flowmeter and a venturi tube, wherein the water supply pipeline is 1, the liquid storage box is 2, the liquid storage cavity is 3, the first one-way check valve is 4, the second one-way check valve is 5, the pump is 6, the connecting pipeline is 7, the suction pipeline is 8, the liquid pumping pipeline.

Detailed Description

The embodiment of the utility model provides an automatic additive feeding device, which is applied to the existing washing machine and used for feeding additives into a water containing cylinder of the washing machine; the additive in the embodiment of the utility model can be any one or combination of the existing liquid additives for treating clothes, such as detergent, softener, perfume additive, bleaching agent, disinfectant and the like.

As shown in fig. 1 to 3, an embodiment of the present invention provides an automatic additive feeding device, which includes a water supply pipeline 1 for supplying an inflow water flow of a washing machine to flow into a water containing cylinder of the washing machine; a liquid storage case 2 containing an additive therein; the suction structure comprises a power unit for providing suction power, and can be stopped, and whether the suction power is provided or not through the power unit, so that the additive in the liquid storage box 2 is sucked to the water supply pipeline 1, or the suction structure is formed to be connected with the water supply pipeline 1 in parallel and is flushed by utilizing the inflow water of the water supply pipeline 1.

The embodiment of the utility model provides an in, the suction structure is through carrying out rational design to constituting the tube coupling mode, makes it only install two one-way check valves, realizes adjusting the inside tube coupling mode with the machine of stopping out of accessible power pack, realizes to suction additive among the water supply line 1, wash the effect of switching use to the suction structure.

The embodiment of the utility model provides an in automatic put in device, including two at least stock solution boxes 2, can save different types of additive respectively in each stock solution box 2, each stock solution box 2 links to each other with supply channel 1 through the suction structure of controlling means alternative, or combination to flow into corresponding additive in the stock solution box 2 in the supply channel 1.

Example one

As shown in fig. 1, the present embodiment describes an additive feeding device, which includes a water supply pipeline 1, wherein a water inlet end of the water supply pipeline 1 is communicated with a water inlet structure of a washing machine, so as to introduce water flow introduced into the washing machine into the feeding device; a liquid storage case 2 containing an additive used when treating laundry therein; and the suction structure is provided with a power unit for providing suction power, and can be used for stopping the power unit, sucking the additive in the liquid storage box 2 to the water supply pipeline 1 or enabling the inflow water flow in the water supply pipeline 1 to flow through and reversely flush the power unit by whether the suction power is provided or not.

In this embodiment, the suction structure includes a pump 6 for providing suction power, an outlet end of the pump 6 is communicated with the water supply pipeline 1, an inlet end is connected with the liquid storage box 2 through a suction pipeline 8 and the water supply pipeline 1 through a connecting pipeline 7, and a control device for controlling the flow direction and/or the on-off of liquid in the pipeline is arranged on the suction pipeline 8 and/or the connecting pipeline 7. Through set up controlling means on suction line 8 and/or connecting line 7 to carry out corresponding break-make switching to suction line 8 and/or connecting line 7, make the inlet end of pump be linked together through suction line 8 and liquid storage box 2, or be linked together through connecting line 7 and water supply pipe 1, realize during pump work through suction line 8 with the additive suction in the liquid storage box 2 in the water supply pipe 1, or the rivers in the water supply pipe 1 assemble to water supply pipe 1 behind connecting line 7 and realize carrying out the mesh that backflushs to pump 6 when pump 6 stops working.

In this embodiment, the pump 6 may be any pump structure capable of providing pumping power in the prior art, such as: electromagnetic pumps, suction pumps, power pumps, and the like.

Preferably, in this embodiment, in order to ensure that the inlet water of the water supply pipeline 1 flows through the connecting pipeline 7 and then flows back to the water supply pipeline 1, the following settings are performed: the outlet end of the pump 6 communicates with the water supply line 1 at a position upstream of the water supply line 1 with respect to the inlet end of the pump 6 communicating with the water supply line 1 via a connecting line 7.

In this embodiment, in order to switch the on/off of the suction pipeline 8 and the connection pipeline 7, the control device may be configured in any manner in the prior art, for example: the suction pipeline 8 and the connecting pipeline 7 are respectively provided with a control valve for controlling the on-off of the pipelines, and the inlet end of the pump 6 is selected by a reversing valve to be communicated with the connecting pipeline 7 and the suction pipeline 8, and the like.

In order to reduce the cost of the dispensing device in this embodiment, the control device on the suction line 8 and/or the connecting line 7 is configured as follows:

in this embodiment, the connecting pipeline 7 is provided with a first one-way check valve 4 for controlling the liquid in the pipeline to flow from the inlet end of the pump 6 to the water supply pipeline 1; the suction pipeline 8 is provided with a second one-way check valve 5 which controls the liquid in the pipeline to flow only from the liquid storage box 2 to the inlet end of the pump 6. Therefore, when the pump 6 works, the inlet end of the pump 6 forms suction acting force, the additive in the liquid storage box 2 is sucked through the suction pipeline 8, the connecting pipeline 7 is disconnected due to the action of the first one-way check valve 4, and the purpose that the additive in the liquid storage box 2 is sucked into the pump 6 along the suction pipeline 8 and then flows into the water supply pipeline 1 is achieved. Simultaneously, when pump 6 was out of work, pump 6 formed the intercommunication pipeline that supplies water stream free flow through, and the inflow rivers in the water supply pipeline 1 flow along pump, connecting line 7 and flow back and converge to water supply pipeline 1 downstream, have realized carrying out the effect of back flush to pump 6, moreover in this in-process because the effect of second one-way check valve 5 makes 8 disconnection of suction line avoid rivers to flow in the stock solution box 2.

In this embodiment, the following settings are performed to ensure that the additive is drawn into the water supply line 1 without flowing back: the water supply pipeline 1 is provided with a liquid storage cavity 3 for temporarily storing the additive pumped into the water supply pipeline 1. Preferably, the outlet end of the pump 6 is communicated with the liquid storage cavity 3 through a pipeline or directly. Preferably, the outlet end of the pump 6 is communicated with the upper part of the liquid storage cavity 3, so that the additive pumped into the liquid storage cavity 3 flows into the upper part of the cavity to avoid backflow; the water supply pipeline 1 penetrates and is communicated with the bottom of the side wall of the liquid storage cavity 3, so that water flow provided by the water supply pipeline 1 can flush the bottom of the liquid storage cavity 3, and all the additives pumped into the cavity can be flushed to the water outlet end of the water supply pipeline 1 by the water inflow water flow of the water supply pipeline 1. Further preferably, in order to ensure the operation stability of the whole device, the liquid storage cavity 3 is arranged as a sealed cavity.

In this embodiment, the water supply pipeline 1 is provided with a water inlet valve 16 for controlling the on-off of the water flow of the supplied water, and the water inlet valve 16 is arranged on the water supply pipeline 1 at the upstream of the suction structure; preferably, the water inlet valve 16 is arranged on the water supply pipeline 1 at the upstream of the liquid storage cavity 3; preferably, the water inlet valve 16 is provided at the water inlet end of the water supply line 1. Thereby, realized controlling the controllable switching of water supply pipe 1 inflow rivers, made water supply pipe 1 inflow rivers break-make and pump 6 open and close the mesh of cooperateing, promotion detergent input efficiency.

In this embodiment, the specific operation process of the additive feeding device is as follows:

firstly, closing a water inlet valve of a water supply pipeline 1 and starting a pump 6, wherein at the moment, a suction force is formed at the inlet end of the pump 6, an additive in a liquid storage box 2 is pumped to the pump 6 along a suction pipeline 8 and then flows into a liquid storage cavity 3 arranged on the water supply pipeline 1, and a connecting pipeline 7 cannot pump water flow in the water supply pipeline 1 into the water flow under the action of a first one-way check valve 4 in the process;

then, the water inlet valve of the water supply pipeline 1 is opened, the pump 6 is closed, at the moment, the pump 6 forms a communication pipeline through which water flows freely, the inflow water flow in the water supply pipeline 1 flows into the liquid storage cavity 3, one part of the water flow directly flushes the additives in the liquid storage cavity 3 into the downstream of the water supply pipeline 1, the other part of the water flow converges to the downstream of the water supply pipeline 1 along the pump 6 and the connecting pipeline 7, the inflow water flow in the connecting pipeline 7 flushes the pump 6 reversely in the process, and the inflow water flow flowing through the connecting pipeline 7 under the action of the second one-way check valve 5 can not flow into the liquid storage box 2 through the suction pipeline 8.

By the aid of the mode, the purposes of sucking and throwing the additive and back flushing and cleaning the pump of the sucking device are achieved, and the effect of automatically throwing the additive is further achieved on the premise of reducing production cost; simultaneously, because above-mentioned additive in this application puts in the device at the operation in-process, adopt the technical scheme that the additive was put in the back and is in time washed, avoided the additive to remain, especially prevented in the power component that the additive put in the device in putting in the device and remain the additive and cause the emergence of the corrosion damage condition.

Example two

As shown in fig. 2, the present embodiment describes an additive feeding device, which includes a water supply pipeline 1, wherein a water inlet end of the water supply pipeline 1 is communicated with a water inlet structure of a washing machine, so as to introduce water flow introduced into the washing machine into the feeding device; a liquid storage case 2 containing an additive used when treating laundry therein; the suction structure, the pipeline links to each other in proper order with supply channel 1 and liquid storage box 2 for deposit water in the supply channel 1 and take out, the additive in the liquid storage box 2 flows into supply channel 1, put in and avoid the effect that additive and suction structure contacted to the additive in order to the realization.

In this embodiment, the water outlet end of the suction structure is connected to the water outlet end of the water supply pipeline 1, and a control device for controlling the flow direction and/or the on-off state of the liquid in the pipeline is arranged on the pipeline connecting the suction structure and/or the liquid storage cavity 2 to the water supply pipeline 1, so that a negative pressure region for the additive to flow into is formed in the water supply pipeline after the water stored in the water supply pipeline is pumped out by the suction structure.

Simultaneously, the suction structure in this embodiment has the power pack that supplies suction power, can stop through power pack and realize whether providing suction power, with additive suction to supply channel 1 in the stock solution box 2, or with the rivers that advance in the supply channel 1 flow through and wash power pack, reaches the effect of washing the automatic dispensing device after using.

In this embodiment, the suction structure includes a pump 6 for providing suction power, the pump 6 is disposed on a connecting pipeline 7, and two ends of the connecting pipeline 7 are respectively communicated with the water supply pipeline 1 to form parallel branches; the pipe section of the water supply pipeline 1 between the two ends of the connecting pipeline 7 is communicated with the liquid storage box 2 through a suction pipeline 8, and a control device for controlling the flow direction and/or the on-off of liquid in the pipeline is arranged on the suction pipeline 8 and/or the water supply pipeline 1. The suction pipeline and/or the water supply pipeline 1 are/is provided with a control device to correspondingly switch the suction pipeline and/or the water supply pipeline 1, so that the inlet end of the pump 6 is communicated with the liquid storage box 2 through the water supply pipeline 1 and the suction pipeline to suck the additive in the liquid storage box 2 into the water supply pipeline 1, or the connecting pipeline 7 is communicated with the water supply pipeline 1 in parallel, and the pump 6 supplies suction power to the liquid storage box 2 through the connecting pipeline 7 and the suction pipeline 8 and sucks the additive in the liquid storage box 2 into the water supply pipeline 1 when working; or when the pump stops working, part of water in the water supply pipeline 1 flows through the connecting pipeline 7 to flush the pump 6 and then is gathered to the downstream pipe section of the water supply pipeline 1, and the other part of the additive pumped into the water supply pipeline 1 is flushed to the downstream pipe section of the water supply pipeline 1.

In this embodiment, preferably, in order to ensure that the inlet water of the water supply pipeline 1 flows through the connecting pipeline and then flows back to the water supply pipeline 1, the following settings are performed: the place where the outlet end of the pump 6 communicates with the water supply line 1 is upstream of the water supply line 1 with respect to the place where the inlet end of the pump 6 communicates with the water supply line 1.

In this embodiment, in order to switch the on/off of the suction pipeline and the connection pipeline, the control device may be configured in any manner in the prior art, for example: control valves for controlling the on-off of the pipelines and the like are respectively arranged on the pipe sections of the water supply pipeline 1 between the two ends of the suction pipeline 8 and the connecting pipeline 7.

in this embodiment, the water supply pipeline 1 is provided with a first one-way check valve 4 for controlling the liquid in the pipeline to flow only in the downstream direction, the first one-way check valve 4 is arranged on the section of the water supply pipeline 1 at the downstream of the connection part of the suction pipeline 8 and the water supply pipeline 1 and at the upstream of the connection part of the water outlet end of the connection pipeline 7 and the water supply pipeline 1; the suction pipeline 8 is provided with a second one-way check valve 5 which controls the liquid in the pipeline to flow only from the liquid storage box 2 to the inlet end of the pump 6.

Therefore, when the pump 6 works, the inlet end of the pump 6 forms suction acting force, liquid in the water supply pipeline 1 is sucked into the connecting pipeline 7 and then flows to the downstream of the water supply pipeline 1, negative pressure is formed at the position of the pipe section of the water supply pipeline 1 between the two ends of the connecting pipeline 7, the additive in the liquid storage box 2 is sucked into the pipe section of the water supply pipeline 1 where the negative pressure is formed through the suction pipeline, the downstream pipe section of the water supply pipeline 1 is disconnected due to the action of the first one-way check valve 4, and the purpose that the additive in the liquid storage box 2 is sucked into the water supply pipeline 1 along the suction pipeline 8 is achieved.

Meanwhile, when the pump 6 does not work, the pump 6 forms a communication pipeline through which water flows freely, one part of the water inflow in the water supply pipeline 1 flows along the connecting pipeline 7 and then converges to the downstream of the water supply pipeline 1, the water inflow flowing through the connecting pipeline 7 flushes the pump 6, the other part of the water inflow directly flows to the downstream along the water supply pipeline 1 and flushes the additive pumped into the water supply pipeline 1 to the water outlet end of the water supply pipeline 1 along with the water inflow in the flowing process, and in the flowing process, the suction pipeline 8 is disconnected due to the action of the second one-way check valve 5 to prevent the water flow from flowing into the liquid storage box 2.

In this embodiment, the following settings are performed to ensure that the additive is drawn into the water supply line 1 without flowing back: be equipped with on the water supply pipe 1 and carry out the liquid chamber 3 that deposits that keeps in with the additive that the suction structure was taken out, on the water supply pipe 1 pipeline section between 7 both ends of connecting line was located to liquid chamber 3, and liquid chamber 3 sets up to sealed cavity. Preferably, the inlet end of the connecting line 7 communicates with the liquid storage chamber 3. Further preferably, the suction line 8 is in communication with the upper portion of the liquid storage chamber 3 to allow the additive to flow from the upper portion of the chamber to avoid backflow; the water supply pipeline 1 penetrates through and is communicated with the bottom of the side wall of the liquid storage cavity 3, so that the water flow provided by the connecting pipeline 7 can flush the bottom of the liquid storage cavity 3, and all the additives pumped into the cavity can be flushed to the water outlet end of the water supply pipeline 1 by the water inflow flowing through the water supply pipeline 1.

In this embodiment, the water supply pipeline 1 is provided with a water inlet valve 16 for controlling the on-off of the water flow of the supplied water, and the water inlet valve 16 is arranged on the water supply pipeline 1 at the upstream of the suction structure; preferably, the water inlet valve 16 is arranged on the water supply pipeline 1 at the upstream of the position where the connecting pipeline is communicated with the water supply pipeline 1; preferably, the water inlet valve 16 is provided at the water inlet end of the water supply line 1. Therefore, the purposes of controlling the on-off of the water inlet flow of the water supply pipeline 1 in a controllable manner, matching the on-off of the water inlet flow with the on-off of the pump 6 and improving the feeding efficiency of the detergent are achieved.

firstly, closing a water inlet valve 16 of a water supply pipeline 1, starting a pump 6, wherein at the moment, a suction force is formed at the inlet end of the pump 6, liquid in a liquid storage cavity 3 is pumped to the downstream of the water supply pipeline 1, so that negative pressure is formed in the liquid storage cavity 3, an additive in a liquid storage box 2 is pumped into the liquid storage cavity 3 along a suction pipeline under the action of the negative pressure, and in the process, the liquid at the downstream water outlet end of the water supply pipeline 1 cannot flow back into the liquid storage cavity 3 along the water supply pipeline 1 under the action of a first one-way check valve 4;

then, the water inlet valve 16 of the water supply pipeline 1 is opened, the pump 6 is closed, at the moment, the pump 6 forms a communication pipeline through which water flows freely, one part of water flow of the water inflow of the water supply pipeline 1 flushes the additive pumped out from the liquid storage cavity 3 and directly flows to the downstream of the water supply pipeline 1, and the other part of the water flow flows along the connecting pipeline 7 and flushes the pump 6 and then converges to the downstream of the water supply pipeline 1; in the process, the pump 6 is flushed by the flow of inlet water through the connecting line 7, while the flow of inlet water through the supply line 1 under the action of the second one-way non-return valve 5 cannot flow into the reservoir 2 through the suction line 8.

By the aid of the mode, the purposes of sucking and throwing the additive and positively flushing and cleaning a pump of the sucking device are achieved, and the effect of automatically throwing the additive is further achieved on the premise of reducing production cost; simultaneously, because above-mentioned additive in this application puts in the device at the operation in-process, adopt the technical scheme that the additive was put in the back and is in time washed, avoided the additive to remain, especially prevented in the power component that the additive put in the device in putting in the device and remain the additive and cause the emergence of the corrosion damage condition.

In this embodiment, in order to realize carrying out the precision measurement, avoiding the additive to flow into connecting device and contact with the pump in stock solution box 2 additive input volume, pump 6 self is integrated have, or be equipped with on connecting line 7 and carry out the flowmeter that measures the measuring to the suction liquid to the discharge of water supply pipe is taken out to the pump monitors, guarantees that the additive that inhales water supply pipe 1 can not flow into connecting line 7.

EXAMPLE III

As shown in fig. 3, the embodiment describes an additive feeding device, which includes a water supply pipeline 1, wherein a water inlet end of the water supply pipeline 1 is communicated with a water inlet structure of a washing machine, so as to introduce water flow led into the washing machine into the feeding device; a liquid storage case 2 containing an additive used when treating laundry therein; the liquid extraction pipeline 9 is used for generating a negative pressure area through water flow flowing through the liquid extraction pipeline 9; the regional via pipeline of negative pressure of liquid pumping pipeline 9 communicates with water supply pipeline 1 and liquid storage box 2 in proper order for with in the water supply pipeline 1 liquid take out, the additive suction water supply pipeline 1 in the liquid storage box 2, put in, and avoid the effect that additive and suction structure contacted with the realization to the additive.

In this embodiment, the liquid pumping pipeline 9 is provided with a venturi tube 20 capable of generating negative pressure by flowing water, a suction port is arranged in a negative pressure area of the venturi tube 20, the suction port is communicated with the water supply pipeline 1 through a connecting pipeline 7, and liquid in the negative pressure water pumping and supplying pipeline 1 enters the liquid pumping pipeline 9 and then flows downstream of the water supply pipeline 1; the connection line 7 communicates with the water supply line 1 upstream of the connection of the suction line 8 with the water supply line 1. In this embodiment, both ends of the venturi tube 20 are connected to the liquid pumping pipeline 9 and are correspondingly communicated with the water inlet end and the water outlet end respectively; the venturi tube 20 has a constricted portion with a reduced inner wall diameter, and a negative pressure region is formed by a sudden increase in the flow velocity of water flowing through the constricted portion, and the negative pressure region has a connection to the outside, which forms a suction opening.

In this embodiment, the water inlet ends of the liquid pumping pipeline 9 and the water supply pipeline 1 are respectively provided with a water inlet valve 16 and a water inlet valve 18 for controlling the on-off of water flow, and the water outlet end of the liquid pumping pipeline 9 is communicated with the water supply pipeline 1; the liquid storage box 2 is communicated with the water supply pipeline 1 through a suction pipeline 8, and the part where the suction pipeline 8 is communicated with the water supply pipeline 1 is positioned at the upstream of the part where the liquid suction pipeline 9 is communicated with the water supply pipeline 1 and at the downstream of the part where the connecting pipeline 7 is communicated with the water supply pipeline 1; the water supply pipeline 1 and/or the suction pipeline 8 are/is provided with a control device for controlling the flow direction and/or the on-off of the pipelines. The control device is arranged on the liquid pumping pipeline and/or the water supply pipeline 1 to correspondingly switch the liquid pumping pipeline and/or the water supply pipeline 1, so that when water flows through the liquid pumping pipeline and the water supply pipeline 1 stops supplying water, a suction opening is communicated with the liquid storage box 2 through the water supply pipeline 1 and the liquid pumping pipeline, and the additive in the liquid storage box 2 is pumped into the water supply pipeline 1; or the connecting pipeline is communicated with the liquid pumping pipeline 9 when the water supply is stopped in the liquid pumping pipeline and the water flows pass through the water supply pipeline 1, so that the aims of flushing the liquid pumping pipeline 9 by part of the water inflow of the water supply flow and flushing the additive pumped into the water supply pipeline 1 to the downstream pipe section of the water supply pipeline 1 by the other part of the water inflow are fulfilled.

In this embodiment, in order to switch the on/off of the water supply pipeline 1 and/or the suction pipeline 8, the control device may be configured in any manner known in the art, for example: control valves for controlling the on-off of the water supply pipeline 1 and the suction pipeline 8 are respectively arranged on the water supply pipeline and the suction pipeline.

In order to reduce the cost of the dispensing device in this embodiment, the control device on the water supply line 1 and/or the suction line 8 is configured as follows:

in this embodiment, the water supply pipeline 1 is provided with a first one-way check valve 4 for controlling the liquid in the pipeline to flow only in the downstream direction, the first one-way check valve 4 is arranged on the pipe section of the water supply pipeline 1 at the downstream of the connection part of the suction pipeline 8 and the water supply pipeline 1 and at the upstream of the connection part of the water outlet end of the liquid suction pipeline 9 and the water supply pipeline 1; the suction pipeline 8 is provided with a second one-way check valve 5 which controls the liquid in the pipeline to flow from the liquid storage box 2 to the water supply pipeline 1.

Therefore, when water flows through the liquid pumping pipeline 9, negative pressure is formed at the reducing part of the Venturi tube 20 of the liquid pumping pipeline 9, liquid in the water supply pipeline 1 flows into the liquid pumping pipeline 9 from a negative pressure port of the Venturi tube 20 through the connecting pipeline 7 and then flows to the downstream of the water supply pipeline 1, so that negative pressure is formed at the pipeline part of the water supply pipeline 1 connected with the connecting pipeline 7, the additive in the liquid storage box 2 is pumped into the water supply pipeline 1 through the pumping pipeline 8, the downstream pipeline part of the water supply pipeline 1 is disconnected due to the action of the first one-way check valve 4, and the purpose of pumping the additive in the liquid storage box 2 into the water supply pipeline 1 along the pumping pipeline 8 is achieved.

In addition, when no water flows through the liquid pumping pipeline 9, the water supply pipeline 1 feeds water, a part of the water inlet flow in the water supply pipeline 1 flows into the liquid pumping pipeline 9 along the connecting pipeline 7 and is converged to the downstream of the water supply pipeline 1, and the water inlet flow flowing through the connecting pipeline 7 washes the venturi tube 20; the other part of the water inflow of the water supply pipeline 1 directly flows to the downstream along the water supply pipeline 1, and in the flowing process, the additive pumped into the water supply pipeline 1 is flushed to the water outlet end of the water supply pipeline 1 along with the water inflow, and in the flowing process, the suction pipeline 8 is disconnected due to the action of the second one-way check valve 5, so that the water flow is prevented from flowing into the liquid storage box 2.

In this embodiment, the following settings are performed to ensure that the additive is drawn into the water supply line 1 without flowing back: the water supply pipeline 1 is provided with a liquid storage cavity 3 for temporarily storing the additive pumped into the water supply pipeline 1, the liquid storage cavity 3 is communicated with a suction pipeline 8, and the liquid storage cavity 3 is positioned at the upstream of the part where the liquid pumping pipeline 9 is communicated with the water supply pipeline 1 and the downstream of the part where the connecting pipeline 7 is communicated with the water supply pipeline 1. The liquid storage chamber 3 is provided as a sealed chamber. Preferably, the inlet end of the connecting line 7 communicates with the liquid storage chamber 3. Further preferably, the suction line 8 is in communication with the upper portion of the liquid storage chamber 3 to allow the additive to flow from the upper portion of the chamber to avoid backflow; the water supply pipeline 1 penetrates through and is communicated with the bottom of the side wall of the liquid storage cavity 3, so that the water flow provided by the connecting pipeline 7 can flush the bottom of the liquid storage cavity 3, and all the additives pumped into the cavity can be flushed to the water outlet end of the water supply pipeline 1 by the water inflow flowing through the water supply pipeline 1.

In this embodiment, the water supply pipeline 1 is provided with a water inlet valve 16 for controlling the on-off of the water flow of the supplied water, and the water inlet valve 16 is arranged on the water supply pipeline 1 at the upstream of the suction structure; preferably, the water inlet valve 16 is arranged on the water supply pipeline 1 at the upstream of the position where the connecting pipeline is communicated with the water supply pipeline 1; preferably, the water inlet valve 16 is provided at the water inlet end of the water supply line 1. Thereby, realized controlling the controllable switching of water supply pipe 1 inflow rivers, made water supply pipe 1 and liquid suction pipe 9 inflow rivers break-make mutually support, promoted the purpose of detergent input efficiency.

In this embodiment, the liquid pumping pipeline 9 is provided with a water inlet valve 18 for controlling the on-off of the water flow, and the water inlet valve 18 is arranged on the liquid pumping pipeline 9 at the upstream of the venturi tube 20; preferably, the water inlet valve 18 is arranged at the water inlet end of the liquid extracting pipeline 9. Thereby, realized controlling the controllable switching of liquid suction pipeline 9 influent stream, made the water supply pipeline 1 and liquid suction pipeline's influent stream break-make mutually support, promoted the purpose that the detergent was put in efficiency.

firstly, closing a water inlet valve 16 of a water supply pipeline 1 and opening a water inlet valve 18 of a liquid pumping pipeline 9, wherein a reducing part of a venturi tube 20 of the liquid pumping pipeline 9 forms negative pressure, liquid in a liquid storage cavity 3 of the water supply pipeline 1 is pumped into the liquid pumping pipeline 9 along a connecting pipeline 7 and converged to the downstream of the water supply pipeline 1, so that negative pressure is formed in the liquid storage cavity 3, an additive in a liquid storage box 2 is pumped into the liquid storage cavity 3 along a pumping pipeline 8 under the action of the negative pressure, and liquid at a downstream water outlet end of the water supply pipeline 1 cannot flow back into the liquid storage cavity 3 along the water supply pipeline 1 under the action of a first one-way check valve 4 in the process;

then, opening a water inlet valve of the water supply pipeline 1 and closing a water inlet valve 18 of the liquid pumping pipeline 9, wherein at the moment, part of the water flow of the water inlet flow of the water supply pipeline 1 flushes the additive pumped out from the liquid storage cavity 3 and directly flows to the downstream of the water supply pipeline 1, and the other part of the water flow flows into the liquid pumping pipeline 9 along the connecting pipeline 7, flushes a venturi tube 20 arranged on the liquid pumping pipeline 9 and then converges to the downstream of the water supply pipeline 1; in the process, the venturi tube 20 is positively flushed by the inflow of water through the connecting line 7, and the inflow of water through the water supply line 1 under the action of the second one-way check valve 5 cannot flow into the liquid storage box 2 through the suction line 8.

By the mode, the purposes of sucking and throwing the additive and positively flushing and cleaning the Venturi tube arranged on the suction pipeline are achieved, and the effect of automatically throwing the additive is further achieved on the premise of reducing the production cost; simultaneously, because above-mentioned additive in this application puts in the device at the operation in-process, adopt the technical scheme that the additive was put in the back and is in time washed, avoided the additive to remain, especially prevented in the power component that the additive put in the device in putting in the device and remain the additive and cause the emergence of the corrosion damage condition.

In this embodiment, in order to realize carrying out the precision measurement to additive input volume in the stock solution box 2, avoid the additive to flow into and contact with venturi behind the liquid suction pipeline 9, be equipped with the flowmeter 19 that measures the detection to the liquid of suction liquid suction pipeline 9 on the connecting line 7, monitor the discharge of taking out water supply pipeline 1, guarantee that the additive that inhales water supply pipeline 1 can not flow into connecting line 7, avoided additive and liquid suction pipeline 9, especially venturi 20 to contact.

Example four

As shown in fig. 1 to fig. 3, the present embodiment is based on the first to third embodiments, and an additive feeding device is described, which includes a first water supply line 11 and a second water supply line 12 connected in parallel, a suction structure for sucking an additive in a liquid storage box 2 into the water supply line is disposed on the first water supply line 11 and/or the second water supply line 12, and the suction structure may be any one of the first to third embodiments described above, which can suck the additive in the liquid storage box 2 into the water supply line 1.

In this embodiment, the first water supply pipeline 11 and the second water supply pipeline 12 are connected to any one of a plurality of water outlet branches in a reversible manner through the flushing mechanism 10, and each water outlet branch is connected to a different water inlet structure of a water containing barrel of the washing machine, so as to convey the water inlet of the washing machine to a water inlet device of any water containing barrel, thereby achieving the purpose of supplying water to different water inlet structures. The water inlet device of the water containing barrel can be any one of the existing structures, such as: a spraying structure for spraying water into the water containing barrel, a main washing water inlet cavity for flowing detergent and/or washing powder into the water containing barrel, an auxiliary washing water inlet cavity for flowing auxiliary additives such as softener and the like into the water containing barrel and the like.

In the present embodiment, in order to achieve the above-described effect, the following settings are made: the water outlet ends of the first water supply pipeline 11 and the second water supply pipeline 12 are arranged on the same side of the opposite flushing mechanism 10 in a staggered manner at an inclination angle, and the water inlet ends of the first water outlet branch 13, the second water outlet branch 14 and the third water outlet branch 15 are arranged on the other side of the opposite flushing mechanism 10. Through set up a plurality of water supply lines and the play water branch road that links to each other through the hedging mechanism on the additive puts in the device, richened automatic device's of putting in rivers form, reached automatic device of putting in and provide the result of use of corresponding rivers of intaking respectively when washing machine different washing procedures.

In this embodiment, the water outlet end of the first water supply pipeline 11 is coaxially opposite to the water inlet end of the first water outlet branch 13, and is arranged at an interval, when the first water supply pipeline 11 supplies water alone, the water supply flow is ejected from the water outlet end of the first water supply pipeline 11 and flows into the water inlet end of the first water outlet branch 13; the water outlet end of the second water supply pipeline 12 is coaxially opposite to the water inlet end of the second water outlet branch pipeline 14 and is arranged at intervals, and when the second water supply pipeline 12 supplies water independently, water flows for supplying water are sprayed out from the water outlet end of the second water supply pipeline 12 and flow into the water inlet end of the second water outlet branch pipeline 14; the third goes out water branch road 15 and intakes the end and is in first play water branch road 13 and intakes between the end and the second play water branch road 14 and intakes the end, and two water flows when first water supply pipeline 1 and second water supply pipeline 1 supply water simultaneously interfere each other and merge into same one and supply water rivers, supply water rivers and flow into the end of intaking of third play water branch road 15. Preferably, in order to ensure that the converged water flow accurately flows into the third water outlet branch, the axis of the water inlet end of the third water outlet branch is arranged along the central parting line of the water inlet end of the first water outlet branch and the water inlet end of the second water outlet branch.

The embodiment also introduces a washing machine, which is characterized in that: the additive feeding device is installed, and a water supply pipeline 1 of the additive feeding device is connected with a water containing barrel of the washing machine so as to convey the additive pumped out from the liquid storage box 2 by the pumping structure into the water containing barrel.

In this embodiment, the washing machine is provided with a spraying device for spraying water into the water containing barrel, a softener feeding port for feeding softener into the water containing barrel, and a washing feeding port for feeding detergent or washing powder into the water containing barrel, wherein the water outlet end of the first water outlet branch 13 of the additive feeding device is communicated with the washing feeding port, the water outlet end of the second water outlet branch 14 is communicated with the spraying device, and the water outlet end of the third water outlet branch 15 is communicated with the softener feeding port.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention still fall within the scope of the present invention.

Claims

1. An additive feeding device, which comprises an additive feeding device,

a water supply line;

a reservoir containing an additive therein;

the method is characterized in that:

the suction structure is used for stopping the suction power and sucking the additive in the liquid storage box to the water supply pipeline or forming a back flushing branch circuit connected with the water supply pipeline in parallel;

the suction structure comprises a pump for providing suction power, the outlet end of the pump is communicated with a water supply pipeline, the inlet end of the pump is connected with the liquid storage box through a suction pipeline and the water supply pipeline through a connecting pipeline, and a control device for controlling the flow direction and/or the on-off of liquid in the pipeline is arranged on the suction pipeline and/or the connecting pipeline;

the connecting pipeline is provided with a first one-way check valve which controls the liquid in the pipeline to flow from the inlet end of the pump to the water supply pipeline;

the suction pipeline is provided with a second one-way check valve which controls the liquid in the pipeline to flow only from the liquid storage box to the inlet end of the pump.

2. The additive delivery device of claim 1, wherein: the position where the outlet end of the pump is communicated with the water supply pipeline is positioned at the upstream of the position where the connecting pipeline is communicated with the water supply pipeline.

3. The additive delivery device of claim 2, wherein: when the pump is in a non-working state and stops providing suction power, the pump forms a communication pipeline through which water flows freely and performs reverse flushing on the inside of the communication pipeline;

when the pump is in working state, it can provide the pumping power from inlet end to outlet end of pump.

4. An additive delivery device as defined in any one of claims 1 to 3, wherein: the water supply pipeline is provided with a liquid storage cavity for temporarily storing the additive pumped into the water supply pipeline by the suction structure; the outlet end of the pump is communicated with the liquid storage cavity.

5. An additive delivery device as defined in any one of claims 1 to 3, wherein: the water supply pipeline is provided with a water inlet valve for controlling the on-off of the water supply flow, and the water inlet valve is arranged at the upstream of the position where the suction structure is communicated with the water supply pipeline.

6. The additive delivery device of claim 4, wherein: the water supply pipeline is provided with a water inlet valve for controlling the on-off of the water flow of the supplied water, and the water inlet valve is arranged on the water supply pipeline at the upstream of the liquid storage cavity.

7. An additive delivery device as defined in any one of claims 1 to 3, wherein: comprises a first water supply pipeline and a second water supply pipeline which are connected in parallel, wherein the first water supply pipeline and/or the second water supply pipeline are/is connected with a suction structure.

8. The additive delivery device of claim 7, wherein: the first water supply pipeline and the second water supply pipeline are communicated with any one of the plurality of water outlet branches in a reversible manner through the hedging mechanism.

9. The additive delivery device of claim 8, wherein: the water outlet ends of the first water supply pipeline and the second water supply pipeline are arranged on the same side of the hedging mechanism in a staggered way at an inclination angle, and the water inlet ends of the first water outlet branch, the second water outlet branch and the third water outlet branch are positioned on the other side of the hedging mechanism;

the water outlet end of the first water supply pipeline is coaxially opposite to the water inlet end of the first water outlet branch and is arranged at intervals, and when the first water supply pipeline supplies water independently, water flows of the water supply pipeline are sprayed out from the water outlet end of the first water supply pipeline and flow into the water inlet end of the first water outlet branch;

the water outlet end of the second water supply pipeline is coaxially opposite to the water inlet end of the second water outlet branch and is arranged at intervals, and when the second water supply pipeline supplies water independently, water flows for supplying water are sprayed out from the water outlet end of the second water supply pipeline and flow into the water inlet end of the second water outlet branch;

the third goes out water branch road and intakes the end and is in first play water branch road and intake between the end and the second play water branch road is intake, and two water flows when first water supply pipeline and second water supply pipeline supply water simultaneously interfere each other and merge into same one and supply water rivers, supply water rivers and flow into the third and go out water branch road and intake the end.

10. A washing machine characterized by: an additive feeding device as claimed in any one of claims 1 to 9, wherein a water supply line of the additive feeding device is connected to a water container of a washing machine to supply the additive pumped out of the reservoir by the pumping mechanism to the water container.

11. The washing machine as claimed in claim 10, wherein: the washing machine is provided with a spraying device for spraying water into the water containing barrel, a softener throwing port for flowing softener into the water containing barrel, and a washing throwing port for flowing detergent or washing powder into the water containing barrel, wherein the water outlet end of a first water outlet branch of the additive throwing device is communicated with the washing throwing port, the water outlet end of a second water outlet branch is communicated with the spraying device, and the water outlet end of a third water outlet branch is communicated with the softener throwing port.