A feeding device for washing machine and washing machine

Abstract

The present invention relates to a dispensing device for a washing machine, comprising an active unit for transmitting active power to a driven unit to drive the driven unit to move; a plurality of driven units, the driven units being used to receive the active power transmitted by the active unit; a plurality of dispensing pumps, respectively connected to corresponding driven units, receiving the active power transmitted by the driven units for dispensing detergent; a switching unit for switching the connection state between the active unit and the plurality of driven units, thereby realizing automatic switching. Accordingly, the dispensing device of the present invention has simplified components, does not require multiple active units of the dispensing device, and only requires one active unit to complete the dispensing of multiple detergents, and has a streamlined structure. The present invention also relates to a washing machine using the dispensing device.

Description

Technical Field

[0001] The present invention relates to the technical field of loading for washing machines, and in particular to a loading device for washing machines and a washing machine. Background Art

[0002] Currently, washing machines mostly use a variety of detergents such as laundry detergent, softener or disinfectant, and in order to facilitate the dispensing of detergents, they are equipped with an automatic dispensing system.

[0003] The automatic dispensing system of existing washing machines is generally equipped with multiple sets of pumping devices for extracting detergents from different storage boxes. When laundry detergent needs to be added, the laundry detergent in the laundry detergent storage box is dispensed into the washing tub through the pumping system corresponding to the laundry detergent. This requires multiple sets of pumping systems and each has its own pumping structure, corresponding to multiple motors; on the other hand, in a system in which one motor controls multiple pump structures, forward and reverse control is only applicable to two pumping devices. When three or more detergents are needed, it is not possible to truly achieve one motor controlling multiple pumps to dispense detergents separately. Summary of the invention

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide a feeding device for a washing machine and a washing machine.

[0005] The technical solution of the present invention is summarized as follows:

[0006] The present invention provides a feeding device for a washing machine, comprising:

[0007] The active unit is used to transmit active force to the driven unit to drive the driven unit to move;

[0008] A plurality of slave units, namely, an i-th slave unit, i being a positive integer, and the slave unit is used to receive the main power transmitted by the main unit;

[0009] A plurality of delivery pumps, namely, the i-th delivery pump, i being a positive integer, are respectively connected to corresponding driven units, receive the main power transmitted by the driven units, and are used for delivering detergent;

[0010] The switching unit is used to switch the connection status between the active unit and the multiple slave units, that is, the connection between the active unit and the i-th slave unit can be switched to the connection between the active unit and the j-th slave unit through the switching unit, wherein i and j are positive integers.

[0011] Furthermore, there are three driven units, namely, a first driven unit, a second driven unit, and a third driven unit;

[0012] There are three delivery pumps, namely, a first delivery pump, a second delivery pump, and a third delivery pump, which correspond to the first driven unit, the second driven unit, and the third driven unit respectively;

[0013] The delivery switching unit is used to switch between three connection states: the active unit is connected to the first slave unit, the active unit is connected to the second slave unit, and the active unit is connected to the third slave unit.

[0014] Preferably, the active unit comprises an active shaft, an active gear, and an active motor, wherein the active gear is fixedly connected to the active shaft in the circumferential direction and slidably connected to the active shaft in the axial direction, and the active motor drives the active shaft and the active gear to rotate;

[0015] Each of the plurality of driven units comprises a driven shaft and a driven gear, and the driven gear is fixedly connected to the driven shaft;

[0016] The driving gear is meshed with the driven gear for power transmission.

[0017] Furthermore, the plurality of driven gears are fixed in different planes perpendicular to the driven shaft so that the connection states do not affect each other, and when the driving gear is meshed with the i-th driven gear, the j-th driven gear is not meshed with the driving gear.

[0018] Preferably, the switching unit includes a pushing screw, a pushing motor, and a connecting piece, one end of the connecting piece is a nut ring, which is sleeved on the pushing screw so that the connecting piece moves axially with the pushing screw, and the other end of the connecting piece is a clamp structure, which clamps the driving gear so that the driving gear moves axially with the connecting piece.

[0019] Preferably, the driving shaft is a spline shaft; the driven shaft is a spline shaft, and a stop ring is provided on the driven shaft to limit the axial movement of the driven gear.

[0020] Furthermore, the delivery device also includes a transmission housing for accommodating the driving shaft, driving gear, driven wheel, driven gear, pushing screw, pushing motor, and connecting parts. The transmission housing is provided with a driven shaft hole, and the driven shaft passes through the driven shaft hole and is connected to the delivery pump.

[0021] Preferably, the driving motor and the driving shaft are driven by a transmission gear assembly, and the pushing motor and the pushing screw are driven by a switching gear assembly.

[0022] Further, the transmission gear assembly includes a first transmission gear fixedly connected to the motor shaft, a third transmission gear fixedly connected to the driving shaft, and a second transmission gear connecting the first transmission gear and the third transmission gear, for power transmission between the driving motor and the driving shaft;

[0023] The switching gear assembly includes a first switching gear fixedly connected to the driving motor shaft and a second switching gear fixedly connected to the driving screw rod. The first switching gear is connected to the second switching gear to drive the power transmission between the driving motor and the driving screw rod.

[0024] Preferably, the delivery pump is a plunger pump, and the driven unit drives the eccentric wheel of the plunger pump to rotate and the plunger to reciprocate.

[0025] On the other hand, the present invention provides a washing machine, comprising a washing machine body, the washing machine body comprising a liquid storage box, a washing tub and a dispensing device for the washing machine as described in the above technical solution; the multiple dispensing pumps of the dispensing device each comprise a liquid inlet and a liquid outlet; the liquid inlet is connected to each corresponding liquid storage box, and the liquid outlet is connected to the washing tub.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The present invention provides a dispensing device for a washing machine and a washing machine, wherein a switching unit is provided so that a slave unit can switch between connections with a plurality of slave units, so that a single main power can be transmitted to a plurality of slave units separately through the active unit, and then the actions of dispensing pumps are controlled separately, so that a plurality of detergents can be dispensed separately, and a plurality of detergents can be automatically dispensed without providing a plurality of motors.

[0028] For example, when using laundry detergent, switch to the slave unit corresponding to the laundry detergent to transmit power to the corresponding dispensing pump of the laundry detergent, and dispense the laundry detergent. When using softener, use the switching unit to switch the active unit to connect with the slave unit corresponding to the softener, and transmit power to the corresponding dispensing pump of the softener. The same applies to the third and fourth detergents, thereby optimizing the automatic dispensing device.

[0029] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0031] Figure 1 It is a structural schematic diagram of a delivery device of the present invention;

[0032] Figure 2 It is a structural schematic diagram of a delivery device of the present invention from a front view perspective;

[0033] Figure 3 It is a structural schematic diagram of the main viewing angle of a delivery device of the present invention;

[0034] Figure 4 It is a structural schematic diagram of a delivery device of the present invention from a front view perspective;

[0035] Figure 5a It is a schematic diagram of the structure of a first connection position of a delivery device of the present invention from a top view;

[0036] Figure 5b It is a structural schematic diagram of a left-viewing angle of a second connection position of a delivery device of the present invention;

[0037] Figure 5c It is a schematic diagram of the structure of the third connection position of a delivery device of the present invention from a top view.

[0038] Description of reference numerals:

[0039] 11-first driven shaft; 12-first driven gear; 21-second driven shaft; 22-second driven gear; 31-third driven shaft; 32-third driven gear; 14-first stop ring; 15-second stop ring;

[0040] 61-driving shaft; 62-driving gear; 65-driving motor; 67-third transmission gear; 68-second transmission gear; 69-first transmission gear;

[0041] 51-pushing screw rod; 52-connecting piece; 521-nut ring; 522-clamp; 55-pushing motor; 56-second switching gear; 57-first switching gear;

[0042] 100-transmission housing;

[0043] 16-first delivery pump; 18-first liquid inlet; 19-first liquid outlet; 26-second delivery pump; 28-second liquid inlet; 29-second liquid outlet; 36-third delivery pump; 38-third liquid inlet; 39-third liquid outlet. DETAILED DESCRIPTION

[0044] The present invention is further described in detail below in conjunction with the accompanying drawings, and the aforementioned and other purposes, features, aspects and advantages of the present invention will become more obvious, so that those skilled in the art can implement it with reference to the text of the specification. In the accompanying drawings, for the sake of clarity, the shapes and sizes can be enlarged, and the same reference numerals will be used in all figures to indicate the same or similar parts. In the following description, words such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc. are based on the orientation or position relationship shown in the accompanying drawings. In particular, "height" is equivalent to the size from top to bottom, "width" is equivalent to the size from left to right, and "depth" is equivalent to the size from front to back. These relative terms are for the convenience of explanation and are generally not intended to require specific orientation. Terms related to attachment, connection, etc. (for example, "connection" and "attachment") refer to the relationship between these structures directly or indirectly fixed or attached to each other through intermediate structures, and movable or rigid attachment or relationship, unless otherwise explicitly stated.

[0045] Next, the present invention is further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment. It should be understood that the terms such as "having", "including" and "comprising" used herein do not specify the existence or addition of one or more other elements or their combinations.

[0046] like Figure 1 As shown, a dispensing device for a washing machine according to the present invention comprises: an active unit 60, for transmitting active power to a driven unit to drive the driven unit to move; a plurality of driven units, namely the i-th driven unit, i being a positive integer, the driven unit being used to receive the active power transmitted by the active unit; a plurality of dispensing pumps, namely the i-th dispensing pump, i being a positive integer, respectively connected to corresponding driven units, receiving the active power transmitted by the driven units, for dispensing detergent; a switching unit 50, for realizing switching of the connection state between the active unit and the plurality of driven units, that is, the connection between the active unit and the i-th driven unit can be switched to the connection between the active unit and the j-th driven unit through the switching unit, wherein i and j are positive integers.

[0047] In some embodiments, there may be three slave units, namely, a first slave unit 10, a second slave unit 20, and a third slave unit 30; there may be three delivery pumps, namely, a first delivery pump 16, a second delivery pump 26, and a third delivery pump 36, corresponding to the first slave unit 10, the second slave unit 20, and the third slave unit 30, respectively; the delivery switching unit may switch between three states: the active unit 60 is connected to the first slave unit 10, the active unit 60 is connected to the second slave unit 20, and the active unit 60 is connected to the third slave unit 30. At this time, the switching unit 50 realizes the switching by actuating the active unit. Of course, there may be two, four, or more slave units. This embodiment is for the existing commonly used three laundry delivery objects, and three slave units are set; if it is another number of laundry delivery objects, the number may also be modified accordingly according to the enlightenment of the embodiment of the present invention.

[0048] In some embodiments, Figure 2 , Figure 3 , Figure 4 As shown, the active unit 60 includes an active shaft 61, an active gear 62, and an active motor 65. The active gear 62 is fixedly connected to the active shaft 61 in the circumferential direction and slidably connected to the active shaft 61 in the axial direction; the active gear 62 can move axially on the active shaft 61, thereby providing the possibility of switching; in addition, the active motor 65 drives the active shaft 61 and the active gear 62 to rotate, so that the active force generated by the active motor 65 can be transmitted to the active shaft 61 and the active gear 62, thereby generating a rotational force;

[0049] The multiple driven units each include a driven shaft and a driven gear. For example, when there are three driven units, the first driven unit 10 includes a first driven shaft 11 and a first driven gear 12, the second driven unit 20 includes a second driven shaft 21 and a second driven gear 22, and the third driven unit 30 includes a third driven shaft 31 and a third driven gear 32; the driven gears are fixedly connected to the driven shafts.

[0050] The driving gear 62 meshes with the driven gear to achieve power transmission. For example, when the driving gear 62 meshes with the first driven gear 12, the driving force generated by the driving motor 65 can be transmitted to the driving shaft 61 and the driving gear 62 to generate a rotational force, and the driving gear 62 meshes with the first driven gear 12, and the generated rotational force is transmitted to the first driven gear 1, so that the first driven gear 12 rotates, and the first driven shaft 11 also rotates, achieving the purpose of transmitting the main power.

[0051] Furthermore, multiple driven gears are fixed in different planes perpendicular to the driven shaft so that the connection states do not affect each other. When the driving gear is engaged with the i-th driven gear, the j-th driven gear is not engaged with the driving gear. For example, when the driving gear 62 is engaged with the first driven gear 12, the second driven gear 22 and the third driven gear 32 are not engaged with the driving gear. In this way, they do not affect each other, and the driving gear 62 drives one driven gear to work at a time.

[0052] In some embodiments, Figure 5a As shown in Figures 5b and 5c, the switching unit 50 includes a pushing screw 51, a pushing motor 55, and a connecting piece 52. One end of the connecting piece 52 is a nut ring 521, which is sleeved on the pushing screw 51, so that the connecting piece 52 moves axially with the pushing screw 51. The other end of the connecting piece 52 is a clamp structure 522, which clamps the driving gear 62, so that the driving gear 62 moves axially with the connecting piece 52; the pushing motor 55 drives the pushing screw 51 to rotate, so that the connecting piece 52 moves axially, thereby making the driving gear 62 move axially to realize switching.

[0053] For example Figure 5a It is the first connection position, at which the driving gear 62 is meshed with the first driven gear 12 , and the driving force generated by the driving motor 65 is transmitted to the first driven shaft 11 .

[0054] When the second driven shaft 21 needs to rotate, the push motor 55 drives the push screw 51 to rotate, and the connecting member 52 sleeved on the push screw 51 through the nut ring 521 moves axially with the rotation of the push screw 51; because the other end of the connecting member 52 is a clamp structure 522 and clamps the driving gear 62, the driving gear 62 also realizes axial movement with the axial movement of the connecting member. For example, when the connecting member 52 moves to Figure 5b In the position shown, the driving gear 62 moves to mesh with the second driven gear 22, and the driving force generated by the driving motor 65 can be transmitted to the second driven shaft 21, driving the second driven shaft 21 to rotate.

[0055] Further, when the third driven shaft 31 is required to rotate, similarly, by pushing the motor 55, the connecting member 52 and the driving gear 62 are moved to the positions as shown in FIG. Figure 5c The driving motor 65 is in the position shown, thereby meshing with the third driven gear 32, and the driving motor 65 drives the third driven shaft 31 to rotate.

[0056] Of course, as shown in the figure, in the main view interface, the first driven unit is located on the left side of the active unit, the first and second driven units are located on the upper side of the active unit, the third driven unit is located on the right side of the active unit, and the switching unit is located on the lower side of the active unit. This regular arrangement facilitates the switching of working states. When there are multiple driven units, other driven units can be set at corresponding positions, and transmission can be achieved through some transmission connection methods. For example, there is also a fourth driven unit, which is set above the first driven shaft 11 and to the left of the second driven shaft 21 shown in the figure. At this time, the structure of the fourth driven unit can be the same as the first transmission unit, except that the fourth driven wheel is set on a different plane from the first three driven wheels. When there is a distance from the driving wheel 62, an intermediate transmission member can be added to achieve the driving wheel 62 driving the fourth driven wheel to rotate.

[0057] In some embodiments, the driving shaft 61 is a spline shaft, which transmits power to the driving wheel 62 through the spline; the driven shaft is a spline shaft, and a stop ring is provided on the driven shaft to limit the axial movement of the driven gear, such as Figure 5a As shown, a first stop ring 14 and a second stop ring 15 are provided on the first driven shaft 11 to fix the first driven gear 12 and prevent the first driven gear 12 from axial movement; correspondingly, stop rings are also provided on other driven shafts.

[0058] In some embodiments, the delivery device also includes a transmission housing 100, which is used to accommodate a driving shaft 61, a driving gear 62, a driven wheel, a driven gear, a pushing screw 51, a pushing motor 55, and a connecting piece 52 to protect the transmission part of the entire delivery device. The transmission housing 100 is provided with a driven shaft hole, and the driven shaft extends out of the driven shaft hole to be connected to a corresponding delivery pump.

[0059] In some embodiments, the driving motor 65 and the driving shaft 61 are driven by a transmission gear assembly, and the pushing motor 55 and the pushing screw 51 are driven by a switching gear assembly.

[0060] In some embodiments, the transmission gear assembly includes a first transmission gear 69 fixedly connected to the motor shaft, a third transmission gear 67 fixedly connected to the driving shaft, and a second transmission gear 68 connecting the first transmission gear 69 and the third transmission gear 67 to achieve power transmission between the driving motor 65 and the driving shaft 61;

[0061] The switching gear assembly includes a first switching gear 57 fixedly connected to the driving motor shaft, and a second switching gear 56 fixedly connected to the driving screw 51. The first switching gear 57 is connected to the second switching gear 56 to achieve power transmission between the driving motor 55 and the driving screw 51. In this way, the corresponding power is transmitted through the gears, which facilitates the arrangement of the structure. The corresponding second switching gear 56 can be axially fixed on the housing as shown in the figure, or fixed in other ways.

[0062] In addition to using gear transmission to achieve power transmission and screw transmission to achieve switching, the active unit, the driven unit, and the switching unit can also be driven by other transmission methods, such as belt transmission, chain transmission, or the motor shaft is directly connected to the relevant active shaft 61 and the push screw 51. The method adopted in this embodiment is a common mechanical transmission method and will not be described in detail.

[0063] Of course, in another embodiment, the power source of the active unit and the switching unit can be the same motor, and two power outputs can be realized by using the forward and reverse rotation of the motor. In this case, the active shaft 61 and the transmission gear of the motor can be connected by a ratchet, and the pushing screw 51 and the transmission gear of the motor can be connected by a ratchet. For example, when the motor rotates forward, the pushing screw 51 moves, the active shaft 61 does not move, and switching is performed; when the motor rotates reversely, the pushing screw 51 does not move, the active shaft 61 moves, and the active power output is performed. Therefore, the active motor and the switching motor represented by the present invention can be the same motor, which further reduces the number of motors.

[0064] The delivery switching device adopted by the present invention is provided with an active unit and transmits power to the driven unit. A switching unit is provided for switching the coordination and transmission between the active unit and the driven unit, thereby realizing the control of multiple driven units and being beneficial to the simplification of the structure. Gear and lead screw transmission are adopted, and the transmission is fast, simple and accurate, and the control of multiple driven units can be realized without setting up multiple motors.

[0065] In some embodiments, the delivery pump is a plunger pump. For example, when a gear and screw transmission method is adopted, the rotation of the driven shaft drives the eccentric wheel of the plunger pump to rotate, thereby driving the plunger of the plunger pump to reciprocate, thereby realizing the delivery function of the delivery pump. Of course, the delivery pump can also adopt a piston pump, gear pump, screw pump, vane pump, etc.

[0066] On the other hand, the present invention provides a washing machine, including a washing machine body, the washing machine body including the above-mentioned dispensing device for the washing machine, and necessary liquid storage boxes and washing tubs; multiple dispensing pumps of the dispensing device each include a liquid inlet and a liquid outlet; the liquid inlet is connected to each corresponding liquid storage box, and the liquid outlet is connected to the washing tub, so that the washing liquid in the liquid storage box enters the washing tub through the action of the dispensing pump to participate in washing.

[0067] For example, the first driven shaft is connected to the first dosing pump 16, the first liquid inlet 18 of the first dosing pump is connected to the first liquid storage box, and the first liquid storage box stores laundry detergent; the second driven shaft is connected to the second dosing pump, the second liquid inlet 28 of the second dosing pump is connected to the second liquid storage box, and the second liquid storage box stores softener; the third driven shaft is connected to the third dosing pump, the third liquid inlet 38 of the third dosing pump is connected to the third liquid storage box, and the third liquid storage box stores disinfectant; the first liquid outlet 19, the second liquid outlet 29, and the third liquid outlet 39 are connected to the washing tub.

[0068] When the clothes need to be disinfected, the driving motor 55 is operated to drive the driving screw 51 to rotate, the connecting member 52 moves axially, and the driving gear 62 moves to a position meshing with the third driven gear 32, and then the driving motor 65 is operated to drive the driving gear 62 to rotate, and the third driven shaft 31 is driven to rotate, so that the third delivery pump 36 moves, so that the disinfectant in the third liquid storage box is injected into the washing tub;

[0069] When the clothes need to be washed, the driving motor 55 is operated to drive the driving screw 51 to rotate, the connecting member 52 moves axially, and the driving gear 62 moves to a position meshing with the first driven gear 12. Then the driving motor 65 is operated to drive the driving gear 62 to rotate, and the first driven shaft 11 is driven to rotate, so that the first dispensing pump 16 moves, so that the laundry liquid in the first liquid storage box is pumped into the washing tub;

[0070] Of course, multiple liquid storage boxes, dosing pumps, and driven units that need to be dosed can also be provided to achieve separate dosing of multiple detergents.

[0071] When combined with a motor or quantitative design of dosing, the dosing amount can also be controlled; when different detergents need to be added in each step of the washing program, the switching is simple and the dosing is accurate.

[0072] The washing machine of the present invention can realize the separate delivery of multiple detergents. There is no need to set a delivery pump and a motor for each detergent. It only needs to switch them to achieve the purpose of a single active motor controlling multiple delivery pumps. The structure is simple and it has an optimizing effect on the detergent delivery in the washing process.

[0073] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to specific details.

Claims

1. A feeding device for a washing machine, characterized in that: include: The active unit is used to transmit active force to the driven unit to drive the driven unit to move; A plurality of slave units, namely, an i-th slave unit, i being a positive integer, and the slave unit is used to receive the main power transmitted by the main unit; A plurality of delivery pumps, namely, the i-th delivery pump, i being a positive integer, are respectively connected to corresponding driven units, receive the main power transmitted by the driven units, and are used for delivering detergent; A switching unit is used to switch the connection state between the active unit and the plurality of slave units, that is, the connection between the active unit and the i-th slave unit can be switched to the connection between the active unit and the j-th slave unit through the switching unit, wherein i and j are positive integers; wherein, The driven unit includes a first driven unit, a second driven unit, and a third driven unit; The delivery pump includes a first delivery pump, a second delivery pump, and a third delivery pump, which correspond to the first driven unit, the second driven unit, and the third driven unit respectively; The delivery switching unit is used to switch between three connection states: the active unit is connected to the first slave unit, the active unit is connected to the second slave unit, and the active unit is connected to the third slave unit; The active unit includes an active shaft, an active gear, and an active motor. The active gear is fixedly connected to the active shaft in the circumferential direction and slidably connected to the active shaft in the axial direction. The active motor drives the active shaft and the active gear to rotate. Each of the plurality of driven units comprises a driven shaft and a driven gear, and the driven gear is fixedly connected to the driven shaft; The driving gear is meshed with the driven gear for power transmission; The plurality of driven gears are fixed in relatively different planes perpendicular to the driven shaft so that the connection states do not affect each other, and when the driving gear is meshed with the i-th driven gear, the j-th driven gear is not meshed with the driving gear; The switching unit includes a push screw, a push motor, and a connecting piece, one end of the connecting piece is a nut ring, which is sleeved on the push screw, so that the connecting piece moves axially with the push screw, and the other end of the connecting piece is a clamp structure, which clamps the driving gear, so that the driving gear moves axially with the connecting piece; The delivery pump is any one of a plunger pump, a piston pump, a gear pump, a screw pump, and a vane pump.

2. A feeding device for a washing machine according to claim 1, characterized in that: The number of the driven units is three; the number of the delivery pumps is three.

3. A feeding device for a washing machine according to claim 1, characterized in that: The driving shaft is a spline shaft; the driven shaft is a spline shaft, and a stop ring is provided on the driven shaft to limit the axial movement of the driven gear.

4. A feeding device for a washing machine according to claim 1, characterized in that: It also includes a transmission housing for accommodating the driving shaft, driving gear, driven wheel, driven gear, pushing screw, pushing motor, and connecting parts. The transmission housing is provided with a driven shaft hole, and the driven shaft passes through the driven shaft hole and is connected to the delivery pump.

5. A feeding device for a washing machine according to claim 1, characterized in that: The driving motor and the driving shaft are driven by a transmission gear assembly, and the pushing motor and the pushing screw are driven by a switching gear assembly.

6. A feeding device for a washing machine according to claim 5, characterized in that: The transmission gear assembly includes a first transmission gear fixedly connected to the motor shaft, a third transmission gear fixedly connected to the driving shaft, and a second transmission gear connecting the first transmission gear and the third transmission gear, and is used for power transmission between the driving motor and the driving shaft; The switching gear assembly includes a first switching gear fixedly connected to the driving motor shaft and a second switching gear fixedly connected to the driving screw rod. The first switching gear is connected to the second switching gear to drive the power transmission between the driving motor and the driving screw rod.

7. A feeding device for a washing machine as described in any one of claims 1 to 6, wherein the feeding pump is a plunger pump, and the driven unit drives the eccentric wheel of the plunger pump to rotate and the plunger to reciprocate.

8. A washing machine, comprising a washing machine body, characterized in that: The washing machine body includes a liquid storage box, a washing tub and a dispensing device for the washing machine as described in claim 7; the multiple dispensing pumps of the dispensing device each include a liquid inlet and a liquid outlet; the liquid inlet is connected to each corresponding liquid storage box, and the liquid outlet is connected to the washing tub.

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