Multi-drum washing machine

Abstract

The utility model belongs to the technical field of multi-drum washing machines, and particularly relates to a multi-drum washing machine, the main body structure comprises a shell, an automatic putting part arranged in the shell, an outer drum with a water inlet pipeline and a water outlet pipeline, a motor arranged outside the outer drum, and an inner drum arranged in the outer drum, the automatic putting part comprises a putting pump and a liquid storage cavity, the putting pipelines are communicated with the water inlet pipeline, one end of the liquid pumping pipeline is communicated with the liquid storage cavity, the other end of the liquid pumping pipeline is communicated with the putting pipeline of a one-inlet N-outlet structure, the putting pump is arranged in the middle of the liquid pumping pipeline, a Venturi pipe fitting is arranged on the water inlet pipeline, and a suction inlet of the Venturi pipe fitting is communicated with the putting pipeline. Water enters the water inlet pipeline corresponding to the outer cylinder needing to put the detergent, the detergent is pumped into the putting pipeline by the putting pump, and the detergent is sucked into the water inlet pipeline by negative pressure generated at the liquid suction port of the Venturi pipe fitting and then is brought into the outer cylinder by water flow.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of multi -cylinder washing machine, concretely relates to a multi -cylinder washing machine reduces the number of the putting pump used for multi -cylinder washing machine to one and cancels electric conversion valve, reduces the manufacturing cost of washing machine. BACKGROUND

[0002] A multi-cylinder washing machine in the prior art meets the needs of users for classified washing. Among them, multiple cylinders each have independent water inlet pipelines, classified washing, and high-end washing machines also have the function of automatically dispensing detergent. For multi-cylinder washing machines with the function of automatically dispensing detergent, it is required that each cylinder can independently control the dispensing of detergent. At present, most multi-cylinder washing machines use each cylinder to match its own dispensing pipeline and dispensing pump or through an electrically operated switching valve to achieve independent control of the dispensing of detergent. For example, a multi-cylinder washing machine automatic dispensing system disclosed in Chinese patent 202311164442.5 includes: a dispensing box for storing a dispensing agent; an integrated waterway assembly including a limiting flow channel formed by a drawing flow channel part and a dispensing flow channel part, the drawing flow channel part being in communication with the dispensing box, and the dispensing flow channel part being in communication with a dispensing outlet; a switcher device including a switch box, a switching motor, and a valve core assembly, a first cavity and a second cavity being provided in the switch box, a switch valve port including multiple valve ports being provided on the first cavity and the second cavity, the switch valve port in the first cavity including at least one dispensing agent inlet, one water inlet, and one common outlet, the switch valve port in the second cavity including at least one or two dispensing agent outlets and one common inlet, the common outlet being in communication with the common inlet through a dispensing pump assembly, the valve core assembly being capable of switching the on-off state of the dispensing agent inlet, the water inlet in the first cavity, and the dispensing agent outlet in the second cavity under the action of the switching motor; the dispensing pump assembly including a dispensing pump body, the dispensing pump body being in communication with the common outlet through a drawing pipeline, and the dispensing pump body being in communication with the common inlet through a pumping pipeline, the valve core assembly including a first switch valve core unit and a second switch valve core unit, the switching motor driving the first switch valve core unit and the second switch valve core unit to rotate simultaneously through a transmission assembly, the first switch valve core unit switching the on-off of the switch valve port in the first cavity when rotating, the second switch valve core unit switching the on-off of the switch valve port in the second cavity when rotating, the integrated waterway assembly including a drawer box, a first accommodating cavity and a second accommodating cavity being provided on the drawer box, the first accommodating cavity being used to accommodate the drawing pipeline and the pumping pipeline for installing the dispensing pump assembly, the second accommodating cavity being used to accommodate the dispensing box, a limiting flow channel being provided on the outer surface of the drawer box, the limiting flow channel being provided in relatively independent flow channels through a partition plate, one end of the drawing flow channel part of the limiting flow channel being in communication with the dispensing box through a dispensing agent dispensing communication port, the other end being in communication with the switch valve port in the first cavity, one end of the dispensing flow channel part of the limiting flow channel being in communication with the switch valve port of the second cavity, the other end being in communication with the dispensing outlet.The automatic dispensing device disclosed in Chinese patent 202320630266.9 includes a cross waterway and a distribution valve. The cross waterway is provided with a first flow channel for distributing and diluting N types of laundry treatment agents. The first flow channel is connected to the distribution valve, which is used to distribute the diluted laundry treatment agents to any one or more of M water buckets along with the water flow in the first flow channel. The cross waterway includes a dilution water tank, and the first flow channel is arranged in a closed manner in the dilution water tank. The first flow channel has a water inlet and a water outlet, and inside the first flow channel, N automatic dispensing ports for laundry treatment agents are sequentially arranged along the water flow direction. The cross waterway further includes a dispensing pump group arranged below the dilution water tank. N liquid outlet conduits of the dispensing pump group correspond to the N automatic dispensing ports one by one. The distribution valve includes a water distribution main pipe and M water distribution branch pipes arranged on the water distribution main pipe. Any one of the water distribution branch pipes is connected to the M water buckets through an electromagnetic cut-off valve. Any one of the electromagnetic cut-off valves is also integrated on the control console. The control console is arranged above the M water distribution branch pipes. The water outlet is integrated with the water distribution main pipe or connected through a hose. The M water distribution branch pipes are arranged in parallel on the same side of the water distribution main pipe. The control console includes an upper cover and a recessed table. The recessed table is arranged above the M water distribution branch pipes and is integrally formed with the M water distribution branch pipes. Any one of the electromagnetic cut-off valves is integrally formed with the upper cover, and the valve rod is arranged downward in the recessed table. Any one of the electromagnetic cut-off valves further includes a valve body and a valve core. The valve body is integrally formed with the upper cover. The valve rod moves back and forth in the valve body and the recessed table to push the valve core to open and close the corresponding water distribution branch pipe.The automatic water inlet box disclosed by Chinese patent 202223454246.5 is installed on a washing machine and is used for water inlet into a washing tub of the washing machine. A tap water inlet and a water pump are arranged on the automatic water inlet box. A second water source inlet, a first water pump outlet and a second water pump outlet are arranged on the water pump. The first water pump outlet is communicated with the automatic water inlet box. The second water pump outlet is communicated with the washing tub. The first water pump outlet is communicated with the automatic water inlet box through a first water pump outlet pipeline. The second water pump outlet is communicated with the washing tub through a second water pump outlet pipeline. A washing care product dispensing device is arranged on the automatic water inlet box. The washing care product dispensing device comprises a detergent dispensing device and a softener dispensing device. The detergent dispensing device is arranged on one side of the automatic water inlet box. The softener dispensing device is arranged on the other side of the automatic water inlet box. The washing care product dispensing device further comprises a washing powder device. The washing powder device is arranged between the detergent dispensing device and the softener dispensing device. The detergent dispensing device comprises a detergent box and a detergent dispensing pump. A detergent storage cavity is arranged in the detergent box. The detergent dispensing pump is arranged at the rear side of the detergent box. The detergent dispensing pump is used for dispensing the detergent in the detergent storage cavity into the automatic water inlet box. The softener dispensing device comprises a softener box and a softener dispensing pump. A softener storage cavity is arranged in the softener box. The softener dispensing pump is arranged at the rear side of the softener box. The softener dispensing pump is used for dispensing the softener in the softener storage cavity into the automatic water inlet box. The washing powder device comprises a washing powder box. A washing powder storage cavity is arranged in the washing powder box. A groove is arranged outside the washing powder box. The groove is used for forming a hand buckle on the washing powder box. However, the above technical solution wastes the cost of the whole machine due to the use of multiple dispensing pumps or the arrangement of an electric conversion valve, which is not conducive to the development of the industry. Therefore, a multi-cylinder washing machine is developed and designed to solve the problem of resource waste and reduce the cost. SUMMARY

[0003] The utility model discloses a kind of multi-cylinder washing machines to overcome the shortcomings of prior art, and the purpose of realizing that one dispensing pump controls multiple outer cylinder dispensing detergent is achieved by one-in N-out structure dispensing pipeline and venturi.

[0004] To achieve the above object, the main body structure of the multi-cylinder washing machine according to the utility model comprises a shell, an automatic dispensing component arranged inside the shell, an outer cylinder having a water inlet pipeline and a drain pipeline, and a motor arranged outside the outer cylinder, and an inner cylinder arranged inside the outer cylinder.

[0005] The main body structure of the automatic dispensing component comprises a liquid storage cavity and a one-in N-out dispensing pipeline connected by a liquid pumping pipeline, a venturi arranged on the water inlet pipeline, a dispensing pump arranged on the liquid pumping pipeline, and a one-way valve arranged on the dispensing pipeline.

[0006] The number of the water inlet pipelines, the outer cylinder and the inner cylinder is equal, and is a positive integer greater than or equal to 2;

[0007] The liquid storage cavity is communicated with the one-in N-out delivery pipeline through one liquid pumping pipeline;

[0008] The liquid pumping pipeline and the delivery pipeline are integrally formed;

[0009] The suction port of the Venturi tube is communicated with the one-in N-out delivery pipeline;

[0010] The delivery pump is arranged in the middle of the liquid pumping pipeline.

[0011] Compared with the prior art, only one delivery pump is arranged in the liquid pumping pipeline, one end of the liquid pumping pipeline is connected with the liquid storage cavity, the other end of the liquid pumping pipeline is connected with the one-in N-out delivery pipeline, N Venturi tubes are arranged in the N water inlet pipelines, the N outlet ends of the one-in N-out delivery pipeline are respectively communicated with the liquid suction ports of the N Venturi tubes, the N outlet ends of the delivery pipeline are respectively provided with the reverse-stopping one-way valves, the water in the water inlet pipeline can be prevented from entering the delivery pipeline in the reverse direction in an abnormal condition, and the one-way valves need to be set with a pressure for opening in the forward direction; when in use, a certain outer cylinder needs to deliver the detergent, the corresponding water inlet pipeline is supplied with water, the delivery pump pumps the detergent from the liquid storage cavity to the delivery pipeline, the negative pressure generated at the liquid suction port of the Venturi tube sucks the detergent into the corresponding water inlet pipeline, and then the detergent is carried into the corresponding outer cylinder by the water flow; the outer cylinder which does not need to deliver the detergent is not supplied with the water flow in the corresponding water inlet pipeline, and the outer cylinder is not supplied with the detergent due to the effect of the pressure for opening the one-way valves in the forward direction; therefore, the delivery control of the multiple outer cylinders can be realized by using one delivery pump, and the structure is simplified. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a main structure principle schematic view of the utility model.

[0013] Figure 2 It is a main structure side view of the utility model.

[0014] Figure 3 It is a main structure principle schematic view of the automatic delivery component. DETAILED DESCRIPTION

[0015] The utility model will be further explained in combination with the drawings and in combination with the specific embodiment.

[0016] Embodiment 1

[0017] The main structure of the multiple-cylinder washing machine related in the embodiment is as shown in Figures 1-2 The main structure of the multiple-cylinder washing machine related in the embodiment is as shown in

[0018] The inside of the shell 1 is provided with a set of automatic dispensing components 2 and two outer cylinders 3;

[0019] Each outer cylinder 3 has a water inlet pipe 4 and a water outlet pipe 5, and the outside of the outer cylinder 3 is provided with a motor 6 and the inside is provided with an inner cylinder 7;

[0020] The main structure of the automatic dispensing component 2 is shown in Figure 3 The main structure of the automatic dispensing component 2 is shown in

[0021] When one of the outer cylinders 3 is dispensing detergent, the water inlet pipe 4 corresponding to the inner cylinder 7 is flowing water, and the dispensing pump 25 will draw the detergent from the liquid storage cavity 21 into the one-in-two-out dispensing pipe 23. The water flow in the corresponding water inlet pipe 4 causes a negative pressure at the liquid suction port 241 of the venturi tube 24, which sucks the detergent in the one-in-two-out dispensing pipe 23 into the corresponding water inlet pipe 4 and then into the corresponding outer cylinder 3 through the water flow.

[0022] At this time, the outer cylinder 3 that does not need to dispense detergent has no water flow in the corresponding water inlet pipe 4, and the one-way valve 26 needs a certain pressure to open in the forward direction, so the detergent will not be sucked into the corresponding water inlet pipe 4, thereby achieving dispensing control of the two outer cylinders 3 through one dispensing pump 25.

Claims

1. A multi-tub washing machine, a main body structure comprising a cabinet, an automatic dispensing part provided inside the cabinet, an outer tub provided with a water inlet line and a water discharge line, and a motor provided outside the outer tub, and an inner tub provided inside the outer tub, characterized in that, The number of the water inlet pipes, the inner cylinder and the outer cylinder is equal, and is a positive integer greater than or equal to 2; the automatic feeding component comprises a feeding pump and a liquid storage cavity, one liquid pumping pipe and N feeding pipes; the feeding pipes are communicated with the water inlet pipes; one end of the liquid pumping pipe is communicated with the liquid storage cavity, and the other end is communicated with the feeding pipes with the inlet-outlet structure; the feeding pump is arranged in the middle of the liquid pumping pipe; a Venturi tube is arranged on the water inlet pipe; the suction inlet of the Venturi tube is communicated with the feeding pipes.

2. A multiple tub washing machine as claimed in claim 1 wherein, The feeding pipes are provided with one-way valves; the one-way valves are reversely blocked and need to be set with pressure for opening in the positive direction.

3. A multiple drum washing machine according to claim 1 or 2, characterised in that, The liquid pumping pipe and the feeding pipes are integrally formed.

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