A washing machine

Abstract

The present application belongs to the technical field of washing machines, and particularly relates to a washing machine, which comprises a box body, an inner drum rotatably arranged in the box body, a driving shaft connected with the inner drum and used for driving the inner drum to rotate, and an additional washing chamber fixedly arranged in the box body, a squeezing device reciprocally arranged in the additional washing chamber, and a first transmission device connected between the driving shaft and the squeezing device and used for converting the rotation of the driving shaft into the reciprocating movement of the squeezing device in the additional washing chamber. Further, the driving shaft drives the inner drum to wash, and at the same time, the squeezing device is driven by the first transmission device to reciprocate in the additional washing chamber, so as to wash the clothes in the additional washing chamber. The present application has the beneficial effect that the inner drum and the additional washing chamber are simultaneously washed by the same driving shaft, and the problems of high cost of the drum washing machine and single form of the washing machine which cannot realize partition washing are solved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of washing machines, and particularly relates to a washing machine. BACKGROUND

[0002] With the continuous improvement of economic level, people's living standards have also improved, and in people's current daily life, washing machines have become an indispensable part, but because of the different types and colors of clothes, users usually separate different clothes for washing when washing different clothes, and most of the current washing machines cannot be divided into zones for washing.

[0003] In the prior art, the washing machine capable of partition washing usually stacks two rollers and is equipped with a motor corresponding to the roller for driving, such technology not only has high cost, but also needs to configure additional parts, and the washing form of such washing machine is too single, and because the rollers are stacked, the height of the washing machine is higher than that of the normal washing machine, and when the two rollers are washed at the same time, safety hazards may occur.

[0004] In order to ensure the safety of the washing machine during washing, the motor of the washing machine can only drive one roller for washing, and the washing machine is provided with two rollers, which is only used to wash different types of clothes by driving one roller corresponding to the clothes by the motor, and the other roller is in idle state. Alternatively, in the prior art, a motor corresponding to the two rollers is arranged in the washing machine to drive the two rollers for washing. How to drive two washing drums by the same motor to wash different types and colors of clothes will require technicians to find new solutions.

[0005] Therefore, the present application is proposed. SUMMARY

[0006] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art, and to provide a washing machine, which comprises a first transmission device and an additional washing chamber. When the washing machine is washing, the first transmission device drives the driving shaft to drive the inner drum and the additional washing chamber for partition washing. Without increasing the driving device, the working efficiency of the washing machine is also improved.

[0007] To solve the above technical problems, the basic idea of the technical solution of the present application is:

[0008] A washing machine, comprising at least a cabinet; an inner drum rotatably arranged in the cabinet; a driving shaft connected with the inner drum for driving the inner drum to rotate; further comprising: an additional washing chamber fixedly arranged in the cabinet; a squeezing device reciprocally arranged in the additional washing chamber; a first transmission device connecting the driving shaft and the squeezing device for converting the rotation of the driving shaft into the reciprocating motion of the squeezing device in the additional washing chamber.

[0009] Further, the first transmission device comprises a first connecting rod, a second connecting rod and a connecting piece, one end of the first connecting rod is connected with the driving shaft, the other end of the first connecting rod is hingedly connected with the connecting piece; one end of the second connecting rod is connected with the squeezing device, the other end of the second connecting rod is hingedly connected with the connecting piece.

[0010] Further, the washing machine further comprises an outer drum, and the first transmission device further comprises a third connecting rod, one end of the third connecting rod is rotatably arranged on the outer drum, and the other end of the third connecting rod is hingedly connected with the connecting piece.

[0011] Further, the connecting piece has a first hinged point hingedly connected with the first connecting rod, a second hinged point hingedly connected with the second connecting rod, and a third hinged point hingedly connected with the third connecting rod; the first hinged point, the second hinged point and the third hinged point are not collinear, and one end of the third hinged point and the second connecting rod connected with the squeezing device is located on the same side of a straight line on which the first hinged point and the second hinged point are located.

[0012] Further, the additional washing chamber has a liquid outlet, and a liquid outlet valve is arranged at the liquid outlet for controlling the opening / closing of the liquid outlet.

[0013] The washing machine further comprises a second transmission device, the second transmission device connects the driving shaft and the liquid outlet valve for converting the rotation of the driving shaft into the motion of the liquid outlet valve for opening / closing the liquid outlet.

[0014] Preferably, the first transmission device drives the squeezing device to reciprocate to compress / release the space in the additional washing chamber; when the first transmission device drives the squeezing device to compress the additional washing chamber, the second transmission device drives the liquid outlet valve to open the liquid outlet; when the first transmission device drives the squeezing device to release the additional washing chamber, the second transmission device drives the liquid outlet valve to close the liquid outlet.

[0015] Further, the second transmission device comprises a first driven rod, a second driven rod and a pushing piece, the pushing piece is connected with the driving shaft and rotates with the driving shaft, and drives the first driven rod to reciprocate; one end of the first driven rod is hingedly connected with one end of the second driven rod, and the other end of the first driven rod is hingedly connected with one end of the second driven rod; the other end of the second driven rod is hingedly connected with the liquid outlet valve.

[0016] Further, the pushing member is a cam, and a top end of the cam abuts against one end of the first driven rod.

[0017] Further, the second transmission device further comprises a guide member, and the first driven rod is slidably mounted on the guide member in an axial direction.

[0018] Further, a middle part of the second driven rod is rotatably mounted in the box body, the first driven rod reciprocates to drive the one end of the second driven rod connected thereto to reciprocate, and the other end of the second driven rod moves reversely to drive the liquid outlet valve to open / close the liquid outlet.

[0019] Further, the additional washing chamber has a liquid inlet, and a liquid inlet valve is mounted at the liquid inlet to control opening / closing of the liquid inlet.

[0020] Preferably, the first transmission device drives the extrusion device to reciprocate to compress / release the internal space of the additional washing chamber, the liquid inlet valve closes the liquid inlet when the extrusion device compresses the additional washing chamber, and the liquid inlet valve opens the liquid inlet when the extrusion device releases the additional washing chamber.

[0021] Compared with the prior art, the application has the following beneficial effects.

[0022] In the application, the washing conditions of clothes with high cleanliness requirements and light-colored clothes are different, the additional washing chamber is arranged to wash the clothes with high cleanliness requirements and light-colored clothes separately, the extrusion device arranged in the additional washing chamber is driven by the driving shaft to reciprocate through the first transmission device while the inner drum is driven by the driving shaft to wash, and then the clothes in the additional washing chamber are washed; thus, two washing drums are driven by one driving shaft to wash simultaneously, and the function of partition washing of the washing machine is realized without increasing the driving device.

[0023] In the application, the cam drives the liquid outlet valve to open / close the liquid outlet through the second transmission device, the cam rotates synchronously with the driving shaft, the compression or release state of the extrusion device is determined through the rotation of the cam, and then the liquid outlet is opened or closed through the second transmission device.

[0024] In the application, the guide member is arranged on the second transmission device, the first driven rod is slidably mounted on the guide member in an axial direction, and the guide member is used to constrain the first driven rod to reduce the degree of freedom of the first driven rod, so that the first driven rod reciprocates in the axial direction.

[0025] The specific embodiments of the application are described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings, which are part of the present application, serve to further understand the present application, and the illustrative embodiments of the present application and the description thereof are used to explain the present application but do not constitute an improper limitation on the present application. Obviously, the drawings in the following description are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings. In the drawings:

[0027] Figure 1 is a structural schematic diagram of a first transmission device in an embodiment of the present application;

[0028] Figure 2 is a structural schematic diagram of a second transmission device in an embodiment of the present application;

[0029] Figure 3 is a structural schematic diagram of a washing machine in an embodiment of the present application.

[0030] In the drawings: 100, outer cylinder; 101, first connecting rod; 102, second connecting rod; 103, reinforcing pair; 1031, third connecting rod; 123, connecting piece; 20, additional washing chamber; 201, extrusion device; 202, liquid inlet valve; 203, clothes feeding port; 204, liquid outlet valve; 300, cam; 301, first driven rod; 3011, guide piece; 302, second driven rod; 3021, fulcrum.

[0031] It should be noted that these drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments will be described clearly and completely below in combination with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application but not to limit the scope of the present application.

[0033] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] Example 1

[0036] like Figures 1-2 As shown, the washing machine described in this embodiment includes:

[0037] Box;

[0038] The inner cylinder is rotatably installed inside the box.

[0039] The drive shaft is connected to the inner cylinder and drives the inner cylinder to rotate.

[0040] Also includes:

[0041] An additional washing chamber 20 is fixedly installed inside the cabinet;

[0042] The squeezing device 201 is reciprocatingly installed in the auxiliary washing chamber 20;

[0043] The first transmission device connects the drive shaft and the extrusion device 201, and is used to convert the rotation of the drive shaft into the reciprocating motion of the extrusion device 201 inside the auxiliary washing chamber 20.

[0044] In this embodiment, the additional washing chamber 20 is installed inside the housing; the extrusion device 201 installed in the additional washing chamber 20 is driven by the first transmission device to reciprocate, thereby compressing / releasing the space inside the additional washing chamber 20.

[0045] Further, the first transmission device includes a first connecting rod 101, a second connecting rod 102, and a connecting member 123. One end of the first connecting rod 101 is connected to the drive shaft, and the other end of the first connecting rod 101 is hinged to the connecting member 123. The connecting member 123 has a first hinge point that is hinged to the first connecting rod 101. One end of the second connecting rod 102 is connected to the extrusion device 201, and the other end of the second connecting rod 102 is hinged to the connecting member 123. The connecting member 123 has a second hinge point that is hinged to the second connecting rod 102.

[0046] In the embodiment, the washing machine further comprises an outer tub 100, and the first transmission device further comprises a third connecting rod 1031, one end of the third connecting rod 1031 being rotatably installed on the outer tub 100, and the other end of the third connecting rod 1031 being hingedly connected with the connecting piece 123, the connecting piece 123 having a third hinged joint hingedly connected with the third connecting rod 1031.

[0047] The first hinged joint, the second hinged joint and the third hinged joint are not collinear; the third hinged joint and the end of the second connecting rod 102 connected with the extrusion device 201 are located on the same side of the straight line on which the first hinged joint and the second hinged joint are located, and the third hinged joint and the end of the second connecting rod 102 connected with the extrusion device 201 are both above the straight line on which the first hinged joint and the second hinged joint are located.

[0048] The first transmission device is provided with the first connecting rod 101, the second connecting rod 102, the third connecting rod 1031 and the connecting piece 123, the first connecting rod 101, the second connecting rod 102 and the connecting piece 123 transmitting the driving force of the driving shaft to drive the extrusion device 201 to perform reciprocating motion; the third connecting rod 1031 is hingedly connected with the connecting piece 123 to constrain the connecting piece 123, thereby reducing the degree of freedom of the second connecting rod 102, so that the second connecting rod 102 drives the extrusion device 201 to perform up-down motion, avoiding collision between the second connecting rod 102 and the additional washing chamber 20 and thereby avoiding abrasion.

[0049] The additional washing chamber 20 is provided with a liquid outlet, the liquid outlet being provided with a liquid outlet valve 204 for controlling opening / closing of the liquid outlet; the additional washing chamber 20 is provided with a liquid inlet, the liquid inlet being provided with a liquid inlet valve 202 for controlling opening / closing of the liquid inlet; the additional washing chamber 20 is provided with a clothes feeding opening 203, and the cabinet is provided with a door body capable of opening / closing the clothes feeding opening 203.

[0050] Further, the clothes feeding opening 203, the liquid outlet and the liquid inlet are arranged at the top end of the additional washing chamber 20, and a separate door body is arranged on one side of the cabinet corresponding to the clothes feeding opening 203, a sealing window gasket being arranged between the door body and the cabinet, the door body being connected with the inside of the additional washing chamber 20 through the clothes feeding opening 203, and clothes are placed in the additional washing chamber 20 through the clothes feeding opening 203 by means of the separate door body before washing.

[0051] In the embodiment, the washing machine further comprises a second transmission device, the second transmission device connecting the driving shaft with the liquid outlet valve 204 and being used for converting rotation of the driving shaft into motion for driving the liquid outlet valve 204 to open / close the liquid outlet.

[0052] Further, the first transmission device drives the extrusion device 201 to reciprocate, compresses / releases the space inside the additional washing chamber 20; when the first transmission device compresses the additional washing chamber 20, the second transmission device drives the liquid outlet valve 204 to open the liquid outlet; when the extrusion device 201 releases the additional washing chamber 20, the second transmission device drives the liquid outlet valve 204 to close the liquid outlet.

[0053] When the first transmission device compresses the additional washing chamber 20, the liquid inlet valve 202 closes the liquid inlet; when the extrusion device 201 releases the additional washing chamber 20, the liquid inlet valve 202 opens the liquid inlet.

[0054] The liquid inlet valve 202 and the liquid outlet valve 204 are opened or closed by the first transmission device in different periods of the transmission process, and when the first transmission device drives the extrusion device 201 to compress the space inside the additional washing chamber 20, the liquid inlet valve 202 closes the liquid inlet, at this time, the liquid outlet valve 204 is driven by the drive shaft through the second transmission device to open the liquid outlet; when the first transmission device drives the extrusion device 201 to release the space inside the additional washing chamber 20, the liquid inlet valve 202 opens the liquid inlet, at this time, the liquid outlet valve 204 is driven by the drive shaft through the second transmission device to close the liquid outlet.

[0055] In this embodiment, the second transmission device includes a first driven rod 301, a second driven rod 302, and a pushing member, the pushing member is connected with the drive shaft and rotates with the drive shaft, and drives the first driven rod 301 to reciprocate; one end of the first driven rod 301 is hinged to one end of the second driven rod 302, and the other end of the first driven rod 301 is hinged to one end of the second driven rod 302; the other end of the second driven rod 302 is hinged to the liquid outlet valve 204.

[0056] The drive shaft transmits kinetic energy to the liquid outlet valve 204 through the second transmission device, so that the liquid outlet valve 204 opens / closes the liquid outlet, and the period in which the second transmission device drives the liquid outlet valve 204 to open / close the liquid outlet is the same as the period in which the first transmission device compresses / releases the space inside the additional washing chamber 20.

[0057] In this embodiment, the pushing member is a cam 300, and the top end of the cam 300 abuts against one end of the first driven rod 301. The first driven rod 301 reciprocates along the surface of the cam 300 under the action of gravity, and transmits kinetic energy to the second driven rod 302 through reciprocation.

[0058] Further, the second transmission device further comprises a guide 3011, and the first follower is axially slidably mounted on the guide 3011. The guide 3011 is used to constrain the first follower and reduce the degree of freedom of the first follower, so that the first follower reciprocates in the direction fixed axially along the first follower rod 301.

[0059] The middle part of the second follower rod 302 is rotatably mounted in the box body, the first follower rod 301 reciprocates to drive the end of the second follower rod 302 connected thereto to reciprocate, and the other end of the second follower rod 302 moves reversely to drive the liquid outlet valve 204 to open / close the liquid outlet. The second follower rod 302 directly drives the liquid outlet valve 204, so that the liquid outlet valve 204 is switched between opening and closing the liquid outlet.

[0060] In the embodiment, the first transmission device drives the squeezing device 201 to reciprocate up and down, which meets the requirement of the user for partition washing of different clothes. The second transmission device is further arranged to enhance the washing effect of the additional washing chamber 20, so that the water inlet and drainage period is matched with the movement period of the squeezing device 201 through the action of the cam 300. The cost of the washing machine is low, and the cost performance is high. Through the low price, the user's expectation for partition washing of different clothes under different washing conditions in daily washing is met.

[0061] Embodiment two

[0062] As shown in Figures 1-3 The embodiment is a further limitation of the above-mentioned embodiment one. The additional washing chamber 20 is fixedly connected with the outer drum 100 to prevent the additional washing chamber 20 and the outer drum 100 from not being co-frequency, so that the relative displacement between the additional washing chamber 20 and the outer drum 100 is generated, the first transmission device is abraded, and the normal washing of the washing machine is affected.

[0063] In the embodiment, the first transmission device is fixedly connected with the squeezing device 201 and the driving shaft to limit the direction of the driving shaft to the squeezing device 201. The first transmission device is a connecting rod mechanism, the squeezing device 201 is a piston, and the connecting piece 123 is a rotary pair. The first transmission device is constrained by the rotary pair to reduce the degree of freedom of the second connecting rod 102 in the first transmission device.

[0064] Further, the first transmission device is provided with a reinforcing auxiliary part 103, one end of the reinforcing auxiliary part 103 is movably connected with the driving shaft, and the other end is fixedly connected with the bottom of the outer cylinder 100, one end of the third connecting rod 1031 rotatably connected with the bottom of the outer cylinder 100 is arranged on the end of the reinforcing auxiliary part 103 fixedly connected with the bottom of the outer cylinder 100, the third connecting rod 1031 is hinged with the reinforcing auxiliary part 103, and the hinged position of the third connecting rod 1031 with the reinforcing auxiliary part 103 can be adjusted on the reinforcing auxiliary part 103.

[0065] Further preferably, a sliding groove is arranged on the surface of the reinforcing auxiliary part 103, a connecting part hinged with the third connecting rod 1031 is arranged in the sliding groove, and the connecting part can be moved in the sliding groove or fixed in the sliding groove through the action of a bolt screw.

[0066] In the embodiment, the second transmission device is a cam 300 mechanism, and the first transmission device and the second transmission device are both rotatable along the driving shaft.

[0067] The second transmission device is driven by the cam 300 arranged on the driving shaft, the cam 300 and the second transmission device form a cam 300 mechanism, further, the lower half of the cam 300 is arranged in a circular shape, and the gear is fixedly connected with the driving shaft through the center of the circle, at this time, since the first driven rod 301 on the second transmission device will not be displaced when passing through the lower half of the gear, the second transmission device does not act on the liquid outlet valve 204.

[0068] Further, the first driven rod 301 is hinged with the second driven rod 302, the second driven rod 302 is hinged with the liquid outlet valve 204, the first driven rod 301 is abutted with the cam 300 in different ranges, so that the second driven rod 302 drives the liquid outlet valve 204 to open / close, further, the guide 3011 arranged on the first driven rod 301 can be fixedly connected with the box body or the bottom of the outer cylinder 100, to ensure the reciprocating movement of the first driven rod 301 along the axial direction thereof.

[0069] Further preferably, a fulcrum 3021 is arranged in the middle of the second driven rod 302, so that the end of the second driven rod 302 hinged with the first driven rod 301 and the end of the second driven rod 302 hinged with the liquid outlet valve 204 move reversely, and the fulcrum 3021 is used to limit the position of the second driven rod 302.

[0070] In the embodiment, the liquid inlet valve 202 is used to control the opening / closing of the liquid inlet, the liquid inlet is communicated with the main water inlet pipe of the washing machine, the main water inlet pipe is communicated with the inner cylinder, and a control valve is arranged between the main water inlet pipe and the liquid inlet valve 202, the control valve can be set by the control device to set the water inlet amount.

[0071] Further, the water outlet is connected with the outer tub 100 or the drain pipe, when the second connecting rod 102 pushes the extrusion device 201 to compress the additional washing chamber 20, the outlet valve 204 is opened, and the liquid in the additional washing chamber 20 flows to the outer tub 100 or the drain pipe through the outlet; the washing clothes in the additional washing chamber 20 are clothes with high cleanliness or light color clothes, so that the washing water in the additional washing chamber 20 flows to the outer tub 100 without causing secondary pollution to the clothes in the outer tub 100.

[0072] In the embodiment, the additional washing chamber 20 is driven by the driving shaft through the first transmission device, the first transmission device is a planar connecting rod mechanism, the second connecting rod 102 is hinged to the extrusion device 201 in the additional washing chamber 20, and the hinged position is close to the rear side of the cabinet; the additional washing chamber 20 is arranged in the rear side area of the cabinet.

[0073] Further, the cabinet rear side is provided with a door plate corresponding to the top end of the additional washing chamber 20, the door plate can be a transparent door plate, so that the user can observe the washing condition in the additional washing chamber 20 through the door plate, and a sealing window gasket is arranged between the door plate and the cabinet to improve the sealing between the door plate and the cabinet, so as to prevent the liquid in the additional washing chamber 20 from flowing out during the washing process.

[0074] In the embodiment, the liquid outlet is connected with the outer tub 100 or the drain pipe, the liquid inlet is connected with the main water inlet pipe, and a control valve is arranged between the liquid inlet and the main water inlet pipe to control the water inlet amount; so that the performance of the first transmission device and the second transmission device is enhanced, and the effect of the same driving device driving different washing drums during the washing process of the washing machine is further improved.

[0075] The above only describes the preferred embodiments of the present application, and does not limit the present application in any form, although the present application has been disclosed as above, however, it is not intended to limit the present application, any person skilled in the art can make some changes or modifications to the above-mentioned technical content without departing from the technical solution of the present application, as long as the changes or modifications are equivalent to the changes or modifications, but as long as the changes or modifications do not depart from the technical solution of the present application, any simple modification, equivalent change and modification of the above-mentioned embodiments according to the technical essence of the present application are still within the scope of the present application.

Claims

1. A washing machine comprising: a cabinet; an outer tub; an inner tub rotatably arranged inside the cabinet; a drive shaft connected to the inner tub for driving the inner tub to rotate; characterized in that it further comprises: an additional washing chamber fixedly arranged inside the cabinet; a squeezing device reciprocally arranged in the additional washing chamber; a first transmission device connecting the drive shaft and the squeezing device for converting the rotation of the drive shaft into the reciprocating motion of the squeezing device in the additional washing chamber; the first transmission device comprising a first connecting rod, a second connecting rod, a third connecting rod and a connecting piece, one end of the first connecting rod being connected to the drive shaft, the other end of the first connecting rod being hingedly connected to the connecting piece, one end of the second connecting rod being connected to the squeezing device, the other end of the second connecting rod being hingedly connected to the connecting piece, one end of the third connecting rod being rotatably arranged on the outer tub, the other end of the third connecting rod being hingedly connected to the connecting piece.

2. A laundry machine according to claim 1, characterized in that, the connecting piece having a first hinge point hingedly connected to the first connecting rod, a second hinge point hingedly connected to the second connecting rod, and a third hinge point hingedly connected to the third connecting rod; the first hinge point, the second hinge point and the third hinge point are not collinear, and the third hinge point and the end of the second connecting rod connected to the squeezing device are located on the same side of the straight line on which the first hinge point and the second hinge point are located.

3. A laundry washing machine according to any one of the preceding claims, characterized in that, the additional washing chamber having a liquid outlet, a liquid outlet valve being arranged at the liquid outlet for controlling the opening / closing of the liquid outlet; the washing machine further comprising a second transmission device connecting the drive shaft and the liquid outlet valve for converting the rotation of the drive shaft into the motion of the liquid outlet valve for opening / closing the liquid outlet.

4. A laundry machine according to claim 3, characterised in that, the first transmission device drives the reciprocating motion of the squeezing device to compress / release the space inside the additional washing chamber; when the first transmission device drives the squeezing device to compress the additional washing chamber, the second transmission device drives the liquid outlet valve to open the liquid outlet; when the first transmission device drives the squeezing device to release the additional washing chamber, the second transmission device drives the liquid outlet valve to close the liquid outlet.

5. A laundry machine according to claim 4, characterised in that, the second transmission device comprising a first driven rod, a second driven rod and a pushing piece, the pushing piece being connected to the drive shaft and rotating with the drive shaft, the pushing piece driving the first driven rod to reciprocate; one end of the first driven rod being hingedly connected to one end of the second driven rod, the other end of the first driven rod being hingedly connected to one end of the second driven rod; the other end of the second driven rod being hingedly connected to the liquid outlet valve.

6. A laundry machine according to claim 5, characterised in that, the pushing piece being a cam, the top end of the cam abutting against one end of the first driven rod.

7. A laundry machine according to claim 5, characterized in that, the second transmission device further comprising a guide piece, the first driven rod being slidably arranged on the guide piece along the axial direction thereof.

8. A laundry machine according to claim 5, characterized in that, the middle part of the second driven rod being rotatably arranged inside the cabinet, the reciprocating motion of the first driven rod driving the reciprocating motion of the end of the second driven rod connected thereto, the other end of the second driven rod moving in the opposite direction to drive the liquid outlet valve to open / close the liquid outlet.

9. A laundry machine according to claim 3, characterized in that, the additional washing chamber having a liquid inlet, a liquid inlet valve being arranged at the liquid inlet for controlling the opening / closing of the liquid inlet.

10. A laundry machine according to claim 9, characterized in that, the first transmission device drives the reciprocating motion of the squeezing device to compress / release the space inside the additional washing chamber; when the squeezing device compresses the additional washing chamber, the liquid inlet valve closes the liquid inlet; when the squeezing device releases the additional washing chamber, the liquid inlet valve opens the liquid inlet.

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