Dispensing device for a laundry treatment apparatus and laundry treatment apparatus

Abstract

The present invention belongs to the field of clothing treatment equipment, and specifically provides a feeding device for a clothing treatment equipment and a clothing treatment equipment. The present invention aims to solve the problem that the feeding device of the existing washing machine is complicated in structure because it needs to use two sets of pumping structures and motors. For this purpose, the feeding device of the present invention includes a gear rod, a driving part, a mounting body, a feeding rod and a gear. The gear rod is rotatably arranged between two mounting bodies, and the driving part is in transmission connection with the gear rod; two feeding rods are rotatably arranged between two mounting bodies. A limiting part is provided at the first end of the two feeding rods, a slipping part is provided at the second end, a threaded part is arranged between the limiting part and the slipping part, two gears are provided with threaded holes and are respectively threadedly connected with the two threaded parts through the threaded holes, and are respectively meshed with the two gear rods. The two feeding rods are respectively connected with the transmission components of the two detergent feeding chambers. The feeding device of the present invention has a simple structure and can effectively reduce the production and use costs.

Description

Technical Field

[0001] The present invention belongs to the technical field of laundry treatment equipment, and particularly provides a dosing device for a laundry treatment equipment and a laundry treatment equipment. Background Art

[0002] A washing machine is a household appliance with a very wide range of applications. A detergent dispenser is usually provided in the washing machine for adding detergent into the washing tub. In order to achieve a better washing effect on clothes and at the same time take into account the care or sterilization of clothes, etc., during the laundry process of the washing machine, different detergents such as laundry detergent and fabric softener need to be added for washing. In the prior art, in order to solve the dosing of different types of detergents, the dosing device is generally provided with two pump liquid devices for pumping detergents in different storage boxes. When detergent needs to be added, the laundry detergent in the laundry detergent storage box is sucked and put into the washing tub through the pump liquid system corresponding to the detergent. However, in this way, two sets of pump liquid systems are required and each is provided with its own pumping structure, and each corresponds to a motor. This setting method has a complex structure and increases the use cost.

[0003] Correspondingly, there is a need in the art for a new dosing device for a laundry treatment equipment and a laundry treatment equipment to solve the problem that the dosing device of the existing washing machine has a complex structure due to the need to use two sets of pumping structures and motors. Summary of the Invention

[0004] To solve the above problems in the prior art, that is, to solve the problem that the dosing device of the existing washing machine is complicated in structure due to the need to use two sets of pumping structures and motors, the present invention provides a dosing device for a laundry treatment device and a laundry treatment device, including two mounting bodies; a power unit including a driving part and a gear rod, the gear rod is rotatably arranged between the two mounting bodies, and the driving part is in transmission connection with the gear rod; a first dosing unit including a first dosing rod and a first gear, the first dosing rod is rotatably arranged between the two mounting bodies, a first limiting part is provided at the first end of the first dosing rod, a first slipping part is provided at the second end, a first threaded part is arranged between the first limiting part and the first slipping part, the first gear is provided with a threaded hole and is threadedly connected to the first threaded part through the threaded hole, and after connection, the first gear is meshed with the gear rod, and the first dosing rod is connected to a first transmission assembly of a first detergent dosing chamber; a second dosing unit including a second dosing rod and a second gear, the second dosing rod is rotatably arranged between the two mounting bodies, a second limiting part is provided at the first end of the second dosing rod, a second slipping part is provided at the second end, a second threaded part is arranged between the second limiting part and the second slipping part, the second gear is provided with a threaded hole and is threadedly connected to the second threaded part through the threaded hole, and after connection, the second gear is meshed with the gear rod, and the second dosing rod is connected to a second transmission assembly of a second detergent dosing chamber; when the driving part drives the gear rod to rotate forward, the first gear moves to reach the first limiting part and drives the first dosing rod to rotate, and then the first dosing rod drives the first transmission assembly to move to realize the dosing of the detergent in the first detergent dosing chamber. At the same time, the second gear reaches the second slipping part to realize slipping rotation; when the driving part drives the gear rod to rotate reversely, the second gear moves to reach the second limiting part and drives the second dosing rod to rotate, and then the second dosing rod drives the second transmission assembly to move to realize the dosing of the detergent in the second detergent dosing chamber. At the same time, the first gear reaches the first slipping part to realize slipping rotation.

[0005] In a preferred technical solution of the dosing device of the above laundry treatment device, the first limiting part and the second limiting part are located on the same side, and the first slipping part and the second slipping part are located on the same side; the thread pitches of the first threaded part and the second threaded part are different.

[0006] In a preferred technical solution of the dosing device of the above laundry treatment device, the first limiting part and the second slipping part are located on the same side, the second limiting part and the first slipping part are located on the same side, and the thread pitches of the first threaded part and the second threaded part are the same.

[0007] In the preferred technical solution of the feeding device of the above-mentioned laundry treatment equipment, the first feeding unit further includes a first elastic member, the first elastic member is located on a side close to the first slipping portion, the first elastic member is disposed between the mounting body and the first threaded portion, and is disposed on the moving stroke of the first gear; and / or the second feeding unit further includes a second elastic member, the second elastic member is located on a side close to the second slipping portion, the second elastic member is disposed between the mounting body and the second threaded portion, and is disposed on the moving stroke of the second gear.

[0008] In the preferred technical solution of the feeding device of the above-mentioned laundry treatment equipment, the first elastic member is sleeved on the first slipping portion, and / or the second elastic member is sleeved on the second slipping portion.

[0009] In the preferred technical solution of the feeding device of the above-mentioned laundry treatment equipment, a first gasket is provided between the first elastic member and the first threaded portion, and between the first elastic member and the mounting body, and / or a second gasket is provided between the second elastic member and the second threaded portion, and between the second elastic member and the mounting body.

[0010] In the preferred technical solution of the feeding device of the above-mentioned laundry treatment equipment, the first slipping portion and the second slipping portion are smooth cylindrical rods.

[0011] In the preferred technical solution of the feeding device of the above-mentioned laundry treatment equipment, the first limiting portion and the second limiting portion are annular convex structures.

[0012] A first piston chamber is provided in the first detergent feeding chamber. A first detergent inlet and a first detergent outlet are provided on the first piston chamber. Check valves are provided on the first detergent inlet and the first detergent outlet. The first transmission assembly includes a first cam, a first connecting rod and a first piston. The first feeding rod is fixedly connected to the first cam. The first cam is hinged to the first connecting rod. The first connecting rod is hinged to the first piston. The first piston is movably disposed in the first piston chamber; a second piston chamber is provided in the second detergent feeding chamber. A second detergent inlet and a second detergent outlet are provided on the second piston chamber. Check valves are provided on the second detergent inlet and the second detergent outlet. The second transmission assembly includes a second cam, a second connecting rod and a second piston. The second feeding rod is fixedly connected to the second cam. The second cam is hinged to the second connecting rod. The second connecting rod is hinged to the second piston. The second piston is movably disposed in the second piston chamber.

[0013] The present invention also provides a laundry treatment device, which includes the dosing device of the laundry treatment device according to any one of the above technical solutions.

[0014] Those skilled in the art can understand that in the technical solution of the present invention, when the driving part drives the gear rod to rotate forward, the first gear moves towards the first limiting part, and the second gear moves towards the second slipping part until the first gear moves to reach the first limiting part and drives the first dosing rod to rotate. Then, while the first dosing rod drives the first transmission assembly to move to realize the dosing of the detergent in the first detergent dosing chamber, the second gear reaches the second slipping part and realizes slipping rotation; when the driving part drives the gear rod to rotate reversely, the first gear moves towards the first slipping part, and the second gear moves towards the second limiting part until the second gear moves to reach the second limiting part and drives the second dosing rod to rotate. Then, while the second dosing rod drives the second transmission assembly to move to realize the dosing of the detergent in the second detergent dosing chamber, the first gear reaches the first slipping part and realizes slipping rotation.

[0015] Through the above setting method, the present invention can realize the automatic dosing of two detergents with different functions by one driving motor, and can accurately dose each detergent. In addition, compared with the traditional double-motor double-pumping structure, the dosing device of the present invention has a simple structure, can effectively reduce the production and use costs, and improve the reputation of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The dosing device of the laundry treatment device of the present invention will be described below with reference to the drawings. In the drawings:

[0017] Figure 1 is a schematic structural diagram of the dosing device of the laundry treatment device of the present invention;

[0018] Figure 2 is Figure 1 a cross-sectional view taken along line A-A in

[0019] Figure 3 is Figure 2 a partial enlarged view at A in

[0020] Figure 4 is a partial structural diagram of the laundry treatment device of the present invention when the driving part rotates reversely.

[0021] List of reference numerals:

[0022] 1 - Installation body; 2 - Power unit; 21 - Driving part; 22 - Gear rod; 3 - First dosing unit; 31 - First dosing rod; 311 - First limiting part; 312 - First slipping part; 313 - First threaded part; 32 - First gear; 33 - First elastic part; 34 - First gasket; 4 - Second dosing unit; 41 - Second dosing rod; 411 - Second limiting part; 412 - Second slipping part; 413 - Second threaded part; 42 - Second gear; 43 - Second elastic part; 44 - Second gasket; 5 - First detergent dosing chamber; 51 - First transmission assembly; 511 - First cam; 512 - First connecting rod; 513 - First piston; 52 - First piston chamber; 521 - First detergent inlet; 522 - First detergent outlet; 6, Housing. Detailed implementation manner

[0023] The preferred implementation manners of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention. Those skilled in the art can adjust it as needed to adapt to specific application scenarios. For example, although the first transmission assembly in the specification is described with a cam-linkage mechanism, obviously, the present invention can adopt various other forms, such as an eccentric wheel mechanism or a cam-spring mechanism, etc., as long as the transmission assembly has the effect of dosing the first dosing agent.

[0024] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "couple" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0026] As Figures 1 to 4As shown in the figure, to solve the problem that the dosing device of the existing washing machine is complex in structure due to the need to use two sets of pumping structures and motors, the dosing device of the laundry treatment equipment of the present invention includes two mounting bodies 1; a power unit 2, including a driving part 21 and a gear rod 22, the gear rod 22 is rotatably arranged between the two mounting bodies 1, and the driving part 21 is in transmission connection with the gear rod 22; a first dosing unit 3, including a first dosing rod 31 and a first gear 32, the first dosing rod 31 is rotatably arranged between the two mounting bodies 1, a first limiting part 311 is provided at the first end of the first dosing rod 31, a first slipping part 312 is provided at the second end, a first threaded part 313 is arranged between the first limiting part 311 and the first slipping part 312, the first gear 32 is provided with a threaded hole and is threadedly connected to the first threaded part 313 through the threaded hole, and after connection, the first gear 32 is meshed and connected with the gear rod 22, and the first dosing rod 31 is connected to the first transmission assembly 51 of the first detergent dosing chamber 5; a second dosing unit 4, including a second dosing rod 41 and a second gear 42, the second dosing rod 41 is rotatably arranged between the two mounting bodies 1, a second limiting part 411 is provided at the first end of the second dosing rod 41, a second slipping part 412 is provided at the second end, a second threaded part 413 is arranged between the second limiting part 411 and the second slipping part 412, the second gear 42 is provided with a threaded hole and is threadedly connected to the second threaded part 413 through the threaded hole, and after connection, the second gear 42 is meshed and connected with the gear rod 22, and the second dosing rod 41 is connected to the second transmission assembly of the second detergent dosing chamber, wherein, the above-mentioned driving part 21 can be a driving motor capable of rotating bidirectionally, and of course, it can also be a combination form of a driving motor and a transmission mechanism. For example, the transmission mechanism is a transmission gear, etc.

[0027] Referring to Figure 3 and Figure 4 When the driving part 21 drives the gear rod 22 to rotate forward, the first gear 32 moves towards the first limiting part 311, and the second gear 42 moves towards the second slipping part 412 until the first gear 32 moves to reach the first limiting part 311 and drives the first dosing rod 31 to rotate. Further, when the first dosing rod 31 drives the first transmission assembly 51 to move to realize the dosing of the detergent in the first detergent dosing chamber 5, the second gear 42 reaches the second slipping part 412 to realize slipping rotation. Continuing to refer to Figure 4 When the driving part 21 drives the gear rod 22 to rotate reversely, the first gear 32 moves towards the first slipping part 312, and the second gear 42 moves towards the second limiting part 411 until the second gear 42 moves to reach the second limiting part 411 and drives the second dosing rod 41 to rotate. Further, when the second dosing rod 41 drives the second transmission assembly to move to realize the dosing of the detergent in the second detergent dosing chamber, the first gear 32 reaches the first slipping part 312 to realize slipping rotation.

[0028] Among them, the first dosing rod 31 and the second dosing rod 41 have a certain pre-tightening force between the two mounting bodies 1, and they will only rotate when the torque received by the first dosing rod 31 and the second dosing rod 41 reaches the preset torque. Taking the first dosing unit 3 as an example, when the first gear 32 moves on the first threaded portion 313, the movement is very smooth, and the torque brought to the first dosing rod 31 is much smaller than the preset torque, which is not enough to make it rotate. In addition, on the first slipping portion 312, due to slipping rotation, the friction force is very small, which is even less likely to make the first dosing rod 31 rotate. Only when the first gear 32 moves to the first limiting portion 311, since the first limiting portion 311 restricts the continuous movement of the first gear 32, however, the first gear 32 is still continuously receiving the force transmitted by the gear rod 22, so that the first dosing rod 31 will receive the force transmitted by the first gear 32, and then the first dosing rod 31 obtains a larger torque. Until the received torque exceeds the preset torque, the first dosing rod 31 begins to rotate, and then drives the first transmission assembly 51 to realize the dosing of the detergent in the first detergent dosing chamber 5.

[0029] The advantages of the above setting method are as follows: The dosing device of the present invention can realize the automatic dosing of two different detergents through a single driving motor, and can accurately quantify the dosing of each detergent. For example, by controlling the forward rotation time and reverse rotation time of the driving motor, different detergents can be dosed quantitatively (if the dosing rate of the detergent is known, the dosing amount of the detergent can be determined by the rotation time of the driving motor). In addition, compared with the traditional double-motor double-pumping structure, the dosing structure of the present invention is simple, which can effectively reduce the production and use costs and improve the reputation of the product.

[0030] Continue to refer to Figure 4 , in a possible implementation manner, the first limiting portion 311 and the second limiting portion 411 are located on the same side, and the first slipping portion 312 and the second slipping portion 412 are located on the same side; the thread helix directions of the first threaded portion 313 and the second threaded portion 413 are different.

[0031] For example, when the gear rod 22 rotates forward (i.e., clockwise rotation, the same below), the first gear 32 and the second gear 42 rotate in the reverse direction (i.e., counterclockwise rotation, the same below). Since the first limiting portion 311 and the second limiting portion 411 are located on the same side, and the first slipping portion 312 and the second slipping portion 412 are located on the same side, only when the thread helix directions of the first threaded portion 313 and the second threaded portion 413 are different (such as the first threaded portion 313 is a left-handed thread and the second threaded portion 413 is a right-handed thread; or the first threaded portion 313 is a right-handed thread and the second threaded portion 413 is a left-handed thread), can it be ensured that the first gear 32 moves towards the first limiting portion 311 and the second gear 42 moves towards the second slipping portion 412, thereby ensuring the separate dosing of the two detergents.

[0032] In an alternative embodiment, the first limiting portion 311 and the second slipping portion 412 are located on the same side, the second limiting portion 411 and the first slipping portion 312 are located on the same side, and the thread directions of the first thread portion 313 and the second thread portion 413 are the same.

[0033] For example, when the gear rod 22 rotates forward, the first gear 32 and the second gear 42 rotate in opposite directions. Since the first limiting portion 311 and the second slipping portion 412 are located on the same side, and the second limiting portion 411 and the first slipping portion 312 are located on the same side, only when the thread directions of the first thread portion 313 and the second thread portion 413 are the same (such as the first thread portion 313 and the second thread portion 413 are left-handed threads; or the first thread portion 313 and the second thread portion 413 are right-handed threads), can it be ensured that the first gear 32 moves towards the first limiting portion 311, and the second gear 42 moves towards the second slipping portion 412, thereby ensuring the separate dispensing of the two detergents.

[0034] Continue to refer to Figure 2 and Figure 4 As a possible embodiment, the first dispensing unit 3 further includes a first elastic member 33. The first elastic member 33 is located on the side close to the first slipping portion 312. The first elastic member 33 is disposed between the mounting body 1 and the first thread portion 313 and is disposed on the moving stroke of the first gear 32; and / or the second dispensing unit 4 further includes a second elastic member 43. The second elastic member 43 is located on the side close to the second slipping portion 412. The second elastic member 43 is disposed between the mounting body 1 and the second thread portion 413 and is disposed on the moving stroke of the second gear 42. As a preferred embodiment, both the first elastic member 33 and the second elastic member 43 are springs. Of course, they can also be elastic members such as elastic sheets.

[0035] The advantage of the above setting method is that when the first gear 32 moves to the first slipping part 312, since the first elastic member 33 on this side is arranged on the moving stroke of the first gear 32 and is located between the mounting body 1 and the first threaded part 313, therefore, the first gear 32 will abut against the first elastic member 33, so that the first elastic member 33 is subjected to a squeezing force and undergoes elastic deformation. Under the action of the elastic force generated by the elastic deformation of the first elastic member 33, while the first gear 32 slips and rotates on the first slipping part 312, it is also in threaded contact with the first threaded part 313, so as to prevent the first gear 32 from disengaging from the first threaded part 313. Thus, when the first gear 32 rotates in the reverse direction, the first elastic member 33 begins to release the elastic force, thereby pushing the first gear 32 quickly into the first threaded part 313, making its reverse movement smoother and without jamming. On the other hand, the first elastic member 33 is close to the first slipping part 312, rather than directly connected to the first slipping part 312, which can avoid part of the force being transmitted to the first feeding rod 31, reduce the force on the first feeding rod 31, and further avoid the rotation of the first feeding rod 31 in the case of loosening of the first feeding rod 31. Similarly, when the second gear 42 moves to the second slipping part 412, it is the same principle.

[0036] Further, as a preferred embodiment, the first elastic member 33 is sleeved on the first slipping part 312, and / or the second elastic member 43 is sleeved on the second slipping part 412.

[0037] The advantage of the above setting method is that: since the first elastic member 33 is sleeved on the first slipping part 312, that is, the first elastic member 33 is movably arranged. When the first elastic member 33 is subjected to the squeezing force of the first gear 32, the first elastic member 33 can make adaptive movements as the first gear 32 rotates. For example, if the friction between the first gear 32 and the first elastic member 33 is small, the first elastic member 33 can make a small rotation as the first gear 32 rotates. If the friction between the first gear 32 and the first elastic member 33 is large, the first elastic member 33 can rotate as the first gear 32 rotates. If the first elastic member 33 is rigidly connected to the mounting body 1, the connection point is likely to be damaged due to long-term stress. Therefore, this setting method can improve the service life of the first elastic member 33. The same applies to the second elastic member 43.

[0038] Further, a first gasket 34 is provided between the first elastic member 33 and the first threaded part 313, and between the first elastic member 33 and the mounting body 1, and / or a second gasket 44 is provided between the second elastic member 43 and the second threaded part 413, and between the second elastic member 43 and the mounting body 1.

[0039] The advantages of the above setting method are as follows: it can increase the contact area with the first elastic member 33, the first gear 32 and the mounting body 1, and prevent the wear of the first elastic member 33, the first gear 32 or the mounting body 1; the same applies to the second gasket 44.

[0040] Of course, as another possible implementation manner, an elastic member may not be provided between the gear and the mounting body 1. When the first gear 32 rotates while slipping on the first slipping portion 312, a small part of the first gear 32 can be threadedly connected to the first threaded portion 313, and most of it is located on the first slipping portion 312. For example, it can be achieved by designing the length of the first slipping portion 312, that is, designed such that one end of the first gear 32 abuts against the mounting body 1, and a small part of the threaded hole at the other end is in threaded contact with the first threaded portion 313, so that the first gear 32 can rotate while slipping in place and does not completely disengage from the first threaded portion 313. Thus, when the driving direction changes, the first gear 32 can enter the first threaded portion 313 and then move towards the first limiting portion 311 to complete the corresponding feeding function; the same setting can be made for the second gear 42 when it rotates on the second slipping portion 412, and the principle is the same.

[0041] Or, when the first limiting portion 311 and the second slipping portion 412 are on the same side, the second limiting portion 411 and the first slipping portion 312 are on the same side, and the thread rotation directions of the first threaded portion 313 and the second threaded portion 413 are the same, the first slipping portion 312 and the second slipping portion 412 are inclined above the horizontal direction, that is, the included angle with the horizontal direction can be 0 - 180 degrees. In this setting method, when the first gear 32 or the second gear 42 is driven by the gear rod 22 to move to the first slipping portion 312 or the second slipping portion 412, it starts to rotate while slipping, and when the first gear 32 or the second gear 42 moves in the reverse direction, relying on the gravity of the first gear 32 or the second gear 42, it enters the first threaded portion 313 or the second threaded portion 413, and then moves in the reverse direction under the action of the first gear 32 or the second gear 42.

[0042] As a preferred implementation manner, the first slipping portion 312 and the second slipping portion 412 are smooth cylindrical rods.

[0043] The advantages of the above setting method are as follows: since the first slipping portion 312 and the second slipping portion 412 are smooth cylindrical rods, the friction coefficient between the first gear 32 and the second gear 42 can be reduced, enabling the first gear 32 and the second gear 42 to complete smoother self-rotation on the first slipping portion 312 and the second slipping portion 412, thereby avoiding the wear of the threaded holes of the first gear 32 and the second gear 42.

[0044] As a preferred implementation manner, the first limiting portion 311 and the second limiting portion 411 are annular protrusion structures.

[0045] The advantages of the above setting method are as follows: Since the first limiting part 311 and the second limiting part 411 are annular convex structures, taking the first limiting part 311 as an example, when the first gear 32 moves to the first limiting part 311, the first limiting part 311 will resist the first gear 32 and limit the continuous movement of the first gear 32. Furthermore, the first dosing rod 31 receives the force transmitted from the first gear 32, thereby driving the first dosing rod 31 to rotate. In addition, the annular convex structure is simple and easy to manufacture, which can reduce the production and use costs.

[0046] Continue to refer to Figure 2 and Figure 3 , as a possible implementation manner, a first piston chamber 52 is provided in the first detergent dosing chamber 5. A first detergent inlet 521 and a first detergent outlet 522 are provided on the first piston chamber 52. One-way valves are provided on the first detergent inlet 521 and the first detergent outlet 522. The first transmission assembly 51 includes a first cam 511, a first connecting rod 512 and a first piston 513. The first dosing rod 31 is fixedly connected to the first cam 511. The first cam 511 is hinged to the first connecting rod 512. The first connecting rod 512 is hinged to the first piston 513. The first piston 513 is movably arranged in the first piston chamber 52; a second piston chamber is provided in the second detergent dosing chamber. A second detergent inlet and a second detergent outlet are provided on the second piston chamber. One-way valves are provided on the second detergent inlet and the second detergent outlet. The second transmission assembly includes a second cam, a second connecting rod and a second piston. The second dosing rod 41 is fixedly connected to the second cam. The second cam is hinged to the second connecting rod. The second connecting rod is hinged to the second piston. The second piston is movably arranged in the second piston chamber. Among them, as a preferred implementation manner, the first detergent dosing chamber 5 and / or the second detergent dosing chamber can be arranged on the mounting body 1 to reduce the volume of the dosing device of the present invention and facilitate the installation in the washing machine; of course, it can also be arranged at positions such as the detergent box, as long as the first dosing rod 31 is connected to the first transmission assembly 51, and / or the second dosing rod 41 is connected to the second transmission assembly, all of which are within the protection scope of the present invention.

[0047] Taking the first detergent dispensing chamber 5 as an example, when the first dispensing rod 31 rotates, it will drive the first cam 511 to rotate, and then convert the rotational motion of the first cam 511 into the reciprocating up-and-down motion of the first piston 513 in the first piston chamber 52 through the first connecting rod 512. Among them, when the first piston 513 moves downward, the one-way valve at the first detergent inlet 521 opens, and the one-way valve at the first detergent outlet 522 closes, realizing the suction of the first detergent. When the first piston 513 moves upward, the one-way valve at the first detergent outlet 522 opens, and the one-way valve at the first detergent inlet 521 closes, thereby realizing the dispensing of the first detergent. Among them, the constant-volume dispensing of the first dispensing agent can be realized by the running time and suction rate of the driving motor, so as to achieve its precise control. The dispensing principle of the second detergent is the same as that of the first detergent and will not be elaborated here.

[0048] As a preferred implementation manner, the dispensing device further includes a housing 6, and the housing 6 covers the gear rod 22, the first dispensing unit 3 and the second dispensing unit 4 to achieve functions such as dust prevention, preventing impurities from entering, protecting and supporting the internal components.

[0049] Of course, the present invention can also be provided with multiple dispensing units such as a third dispensing unit and a fourth dispensing unit. For example, when a third dispensing unit is provided, if the structure in the third dispensing unit is the same as that of the first dispensing unit 3, then when the first dispensing unit 3 dispenses detergent, the third dispensing unit also dispenses detergent at the same time. When the second dispensing unit 4 dispenses detergent, the first dispensing unit 3 and the third dispensing unit do not dispense detergent. This setting method can dispense multiple different detergents, and the appropriate number of dispensing units can be selected according to needs.

[0050] In summary, the structure of the dispensing device of the washing machine of the present invention is simple. Only one driving motor can be used to realize the dispensing of two different detergents, and the two detergents can be accurately and quantitatively dispensed.

[0051] It should be noted that the above implementation manners are only used to illustrate the principle of the present invention and are not intended to limit the protection scope of the present invention. Without departing from the principle of the present invention, those skilled in the art can adjust the above structure so that the present invention can be applied to more specific application scenarios.

[0052] For example, in an alternative implementation manner, the first slipping portion 312 and / or the second slipping portion 412 can also be a rough or protruding cylindrical rod, as long as it can make the first gear 32 and / or the second gear 42 slip and rotate, and the force transmitted by it is not enough to make the first dispensing rod 31 and / or the second dispensing rod 41 rotate. These do not deviate from the principle of the present invention, so they will all fall within the protection scope of the present invention.

[0053] For example, in another alternative embodiment, the first elastic member 33 and / or the second elastic member 43 may be fixedly arranged on the mounting body 1. For example, two first elastic members 33 and / or two second elastic members 43 are oppositely arranged on both sides of the first slipping portion 312 and / or the second slipping portion 412. As long as the first gear 32 and / or the second gear 42 can be pushed to quickly enter the threaded portion in the reverse direction, these do not deviate from the principle of the present invention, and thus will all fall within the protection scope of the present invention.

[0054] For example, in another alternative embodiment, a first locking member capable of rebounding in the reverse direction is provided on the first limiting portion 311, and a second locking member adapted to the first locking member and capable of rebounding in the forward direction is provided on the first gear 32; a third locking member capable of rebounding in the forward direction is provided on the second limiting portion 411, and a fourth locking member adapted to the third locking member and capable of rebounding in the reverse direction is provided on the second gear 42; for example, when the first gear 32 rotates in the reverse direction and moves to the first limiting portion 311, the first locking member and the second locking member are mutually locked, and the first gear 32 stops moving, thereby driving the rotation of the first dosing rod 31. When the first gear 32 rotates in the forward direction, when the first locking member and the second locking member touch, the first locking member rotates in the forward direction, and the second locking member rotates in the reverse direction, which does not limit the forward rotation of the first gear 32, so as to ensure that the first gear 32 enters the first threaded portion 313. Therefore, as long as the first limiting portion 311 and the second limiting portion 411 can limit the first gear 32 and the second gear 42, these do not deviate from the principle of the present invention, and thus will all fall within the protection scope of the present invention.

[0055] For example, in another alternative embodiment, the number of the first gasket 34 and / or the second gasket 44 of the present invention may be respectively set to 1. For example, the number of the first gasket may be 1, which is arranged between the first elastic member 33 and the first threaded portion 313, or between the first elastic member 33 and the mounting body 1; the setting position of the second gasket 44 is the same; these do not deviate from the principle of the present invention, and thus will all fall within the protection scope of the present invention.

[0056] For example, in another alternative embodiment, the first transmission assembly 51 and / or the second transmission assembly may be in the form of an eccentric wheel mechanism or a combination of a cam spring mechanism and a piston, etc. As long as the first dosing agent and the second dosing agent can be dosed, these do not deviate from the principle of the present invention, and thus will all fall within the protection scope of the present invention.

[0057] In addition, the present invention further provides a laundry treating device, and the laundry treating device has the dosing device of the laundry treating device described in any one of the above embodiments.

[0058] Finally, it should be noted that although the present invention is described by taking a washing machine as an example, the laundry treatment device of the present invention can obviously also be applied to other washing devices. For example, the laundry treatment device can also be applied to a shoe washing machine, a sock washing machine or even a dishwasher, etc.

[0059] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A dispensing device for a laundry treatment apparatus, characterized in that, The dispensing device includes: Two mounting bodies; A power unit, including a driving part and a gear rod, the gear rod is rotatably arranged between the two mounting bodies, and the driving part is in transmission connection with the gear rod; A first dispensing unit, including a first dispensing rod and a first gear, the first dispensing rod is rotatably arranged between the two mounting bodies, a first limiting part is arranged at the first end of the first dispensing rod, a first slipping part is arranged at the second end, a first threaded part is arranged between the first limiting part and the first slipping part, the first gear is provided with a threaded hole and is in threaded connection with the first threaded part through the threaded hole, and after connection, the first gear is in meshing connection with the gear rod, and the first dispensing rod is connected with a first transmission assembly of a first detergent dispensing chamber; A second dispensing unit, including a second dispensing rod and a second gear, the second dispensing rod is rotatably arranged between the two mounting bodies, a second limiting part is arranged at the first end of the second dispensing rod, a second slipping part is arranged at the second end, a second threaded part is arranged between the second limiting part and the second slipping part, the second gear is provided with a threaded hole and is in threaded connection with the second threaded part through the threaded hole, and after connection, the second gear is in meshing connection with the gear rod, and the second dispensing rod is connected with a second transmission assembly of a second detergent dispensing chamber; When the driving part drives the gear rod to rotate forward, the first gear moves to reach the first limiting part and drives the first dispensing rod to rotate. Then, while the first dispensing rod drives the first transmission assembly to move to realize the dispensing of the detergent in the first detergent dispensing chamber, the second gear reaches the second slipping part and realizes slipping rotation; when the driving part drives the gear rod to rotate reversely, the second gear moves to reach the second limiting part and drives the second dispensing rod to rotate. Then, while the second dispensing rod drives the second transmission assembly to move to realize the dispensing of the detergent in the second detergent dispensing chamber, the first gear reaches the first slipping part and realizes slipping rotation.

2. The dispensing device of the laundry treatment device according to claim 1, wherein The first limiting part and the second limiting part are located on the same side, and the first slipping part and the second slipping part are located on the same side; the thread rotation directions of the first threaded part and the second threaded part are different.

3. The dispensing device of the laundry treatment device according to claim 1, wherein The first limiting part and the second slipping part are located on the same side, the second limiting part and the first slipping part are located on the same side, and the thread rotation directions of the first threaded part and the second threaded part are the same.

4. The dispensing device of the laundry treatment device according to claim 1, wherein The first dispensing unit further includes a first elastic member, the first elastic member is located on the side close to the first slipping part, the first elastic member is arranged between the mounting body and the first threaded part and is arranged on the moving stroke of the first gear; and / or The second dispensing unit further includes a second elastic member, which is located on a side close to the second slipping portion, and is disposed between the mounting body and the second threaded portion and on the moving stroke of the second gear.

5. The dispensing device of the laundry treating apparatus according to claim 4, wherein the first elastic member is sleeved on the first slipping portion, and / or the second elastic member is sleeved on the second slipping portion.

6. The dispensing device of the laundry treating apparatus according to claim 5, wherein a first gasket is provided between the first elastic member and the first threaded portion and between the first elastic member and the mounting body, and / or a second gasket is provided between the second elastic member and the second threaded portion and between the second elastic member and the mounting body.

7. The dispensing device of the laundry treating apparatus according to claim 1, wherein the first slipping portion and the second slipping portion are smooth cylindrical rods.

8. The dispensing device of the laundry treating apparatus according to claim 1, wherein the first limiting portion and the second limiting portion are annular convex structures.

9. The dispensing device of the laundry treating apparatus according to claim 1, wherein a first piston chamber is provided in the first detergent dispensing chamber. A first detergent inlet and a first detergent outlet are provided on the first piston chamber. One-way valves are provided on the first detergent inlet and the first detergent outlet. The first transmission assembly includes a first cam, a first connecting rod, and a first piston. The first dispensing rod is fixedly connected to the first cam. The first cam is hinged to the first connecting rod. The first connecting rod is hinged to the first piston. The first piston is movably disposed in the first piston chamber; and / or a second piston chamber is provided in the second detergent dispensing chamber. A second detergent inlet and a second detergent outlet are provided on the second piston chamber. One-way valves are provided on the second detergent inlet and the second detergent outlet. The second transmission assembly includes a second cam, a second connecting rod, and a second piston. The second dispensing rod is fixedly connected to the second cam. The second cam is hinged to the second connecting rod. The second connecting rod is hinged to the second piston. The second piston is movably disposed in the second piston chamber.

10. A laundry treatment device, characterized in that, The laundry treating apparatus includes the dispensing device of the laundry treating apparatus according to any one of claims 1 to 9.

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