Drive pump structure and laundry treating apparatus

Abstract

The application provides a driving pump structure and a clothes processing device, and belongs to the technical field of clothes processing devices. The driving pump structure comprises a shell, a driving motor, a first impeller, a second impeller and a transmission structure. The first impeller, the second impeller and the transmission structure are arranged in the shell. The first impeller and the second impeller are in transmission connection with the driving motor through the transmission structure. The shell is provided with a first water inlet, a first water outlet and a second water outlet. When the driving motor rotates in a first direction, the first impeller can be driven to rotate, and then liquid can enter through the first water inlet, pass through the first impeller and be discharged from the first water outlet. When the driving motor rotates in a second direction, the second impeller can be driven to rotate, and then liquid can enter through the first water inlet, pass through the second impeller and be discharged from the second water outlet. The first impeller and the second impeller are connected with the same driving motor through the transmission structure, which is beneficial to reducing the size, weight and cost of the driving pump structure.

Description

Technical Field

[0001] This application belongs to the technical field of clothing processing equipment, and particularly relates to a drive pump structure and clothing processing equipment. Background Technology

[0002] Clothing handling equipment is a cleaning device used for washing clothes. It typically includes a drive pump, which comprises two motors and two impellers. The two motors drive the two impellers, one of which drains the water from the equipment, while the other circulates the wash water for reuse. However, existing clothing handling equipment uses large, heavy, and expensive drive pumps, hindering efforts to reduce the overall size and cost of the equipment. Utility Model Content

[0003] The purpose of this application is to provide a drive pump structure and a garment processing device to solve the technical problems of large size and high cost of drive pumps in existing garment processing devices.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows: The first aspect of this application provides a drive pump structure, including a housing, a drive motor, a first impeller, a second impeller, and a transmission structure, wherein...

[0005] The first impeller, the second impeller, and the transmission structure are housed inside the casing. The first impeller and the second impeller are connected to the drive motor via the transmission structure.

[0006] The shell has a first water inlet, a first water outlet, and a second water outlet;

[0007] When the drive motor rotates in the first direction, it can drive the first impeller to rotate, thereby allowing the liquid to enter through the first inlet and be discharged from the first outlet after passing through the first impeller.

[0008] When the drive motor rotates in the second direction, it can drive the second impeller to rotate, which in turn allows the liquid to enter through the first inlet and be discharged from the second outlet after passing through the second impeller.

[0009] In some implementations, the transmission structure is a gear transmission structure.

[0010] In some implementations, the transmission structure includes a motor gear, an intermediate transmission gear set, a first end gear, and a second end gear. The motor gear is connected to the motor shaft of the drive motor, and the first end gear and the second end gear are coaxially connected to the first impeller and the second impeller, respectively. The motor gear, the first end gear, and the second end gear are all connected to the intermediate transmission gear set for transmission.

[0011] In some implementations, the intermediate transmission gear set includes a first side gear, a second side gear, and a movable gear. The first side gear, the second side gear, and the movable gear are coaxially arranged, with the movable gear positioned between the first side gear and the second side gear. The movable gear is movable along the axial direction and is connected to the motor gear transmission. The movable gear is a helical gear. When the drive motor rotates, the movable gear can move along its own axis and can move to a position that engages with the first side gear or the second side gear to drive the first side gear or the second side gear to rotate.

[0012] In some implementations, a first meshing portion and a second meshing portion are respectively provided on the two opposite end faces of the movable gear. A first mating portion is provided on the end face of the first gear facing the movable gear, and a second mating portion is provided on the end face of the second gear facing the movable gear. When the drive motor rotates in the first direction, the movable gear rotates and moves along the axis toward the first gear until the first meshing portion and the first mating portion are connected so that the movable gear drives the first gear to rotate together. When the drive motor rotates in the second direction, the movable gear rotates and moves along the axis toward the second gear until the second meshing portion and the second mating portion are connected so that the movable gear drives the second gear to rotate together.

[0013] In some implementations, the diameter of the movable gear is smaller than the diameter of the first side gear, a first groove is formed on the end face of the first side gear facing the movable gear, a first mating part is disposed on the bottom surface of the first groove, and when the first meshing part engages with the first mating part, the movable gear extends into the first groove; and / or, the diameter of the movable gear is smaller than the diameter of the second side gear, a second groove is formed on the end face of the second side gear facing the movable gear, a second mating part is disposed on the bottom surface of the second groove, and when the second meshing part engages with the second mating part, the movable gear extends into the second groove.

[0014] In some implementations, the first meshing part includes at least one first ramp tooth, the first mating part includes at least one first mating tooth, the first mating tooth engages with the first ramp tooth to cause the movable gear to drive the first side gear to rotate; the second meshing part includes at least one second ramp tooth, the second mating part includes at least one second mating tooth, the second mating tooth engages with the second ramp tooth to cause the movable gear to drive the second side gear to rotate.

[0015] In some implementations, one end of the first helical tooth in the circumferential direction of the movable gear is the first contact end face, and the thickness of the first helical tooth gradually decreases along the axis of the movable gear from the first contact end face to the direction away from the first contact end face; one end of the second helical tooth in the circumferential direction of the movable gear is the second contact end face, and the thickness of the second helical tooth gradually decreases along the axis of the movable gear from the second contact end face to the direction away from the second contact end face; wherein, the direction from the first contact end face of the helical tooth to the direction away from the first contact end face of the helical tooth is opposite to the direction from the second contact end face of the helical tooth to the direction away from the second contact end face of the helical tooth.

[0016] In some implementations, the first meshing portion includes a plurality of first chamfer teeth, which are spaced apart along the circumferential direction of the movable gear; and / or, the second meshing portion includes a plurality of second chamfer teeth, which are spaced apart along the circumferential direction of the movable gear.

[0017] In some implementations, the transmission structure includes a second shaft with both ends fixed to the housing. A first side gear, a second side gear, and a movable gear are mounted on the second shaft, and both the first side gear and the second side gear are movably connected to the second shaft.

[0018] In some implementations, the transmission structure also includes an intermediate gear, with at least one intermediate gear, which drives the movable gear and the motor gear.

[0019] In some implementations, there is one intermediate gear, which meshes with both the movable gear and the motor gear. Both the intermediate gear and the motor gear are helical gears.

[0020] In some implementations, the housing includes a main housing and a transmission housing. The drive motor is fixed on the outer side of the main housing, the transmission housing is located on one side of the main housing and the two are connected, and the transmission structure is located inside the transmission housing.

[0021] In some implementations, the main shell includes a main cylinder, a water inlet pipe, a first impeller mounting part, and a second impeller mounting part, with the water inlet pipe, the first impeller mounting part, and the second impeller mounting part disposed on the circumferential side of the main cylinder.

[0022] A first water inlet is formed on the water inlet pipe section, and a first impeller and a second impeller are respectively installed in the first impeller mounting section and the second impeller mounting section. A first water outlet and a second water outlet are respectively formed on the first impeller mounting section and the second impeller mounting section.

[0023] In some implementations, the drive pump structure also includes a filter element device, which extends from one end of the main cylinder and is installed inside the main cylinder. The filter element device is used to filter water entering the main cylinder from the first inlet.

[0024] In some implementations, the drive pump structure also includes an emergency drain pipe connected to the housing and connected to the first inlet.

[0025] A second aspect of this application provides a garment processing device, including the drive pump structure provided by any of the above-described technical solutions.

[0026] The beneficial effects of this application are as follows: In the embodiments of this application, by setting the first impeller and the second impeller of the drive pump structure to be connected to the same drive motor through the transmission structure, the operation of the first impeller or the second impeller can be controlled by the different rotation directions of the drive motor, which helps to reduce the volume and weight of the drive pump structure, reduce the cost of the drive pump structure, and thus help to reduce the volume and cost of the clothing processing equipment. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of a garment processing device provided in some embodiments of this application;

[0029] Figure 2 A simplified schematic diagram showing the connection between the cylindrical part and the drive pump structure provided in some embodiments of this application;

[0030] Figure 3 This is a schematic diagram of the drive pump structure provided in some embodiments of this application;

[0031] Figure 4 Exploded view of the drive pump structure provided in some embodiments of this application Figure 1 ;

[0032] Figure 5 Exploded view of the drive pump structure provided in some embodiments of this application Figure 2 ;

[0033] Figure 6 A schematic diagram showing the connection between the drive motor, transmission structure, first impeller, and second impeller provided in some embodiments of this application;

[0034] Figure 7 This is a schematic diagram of the structure of the motor gear and intermediate transmission gear set provided in some embodiments of this application;

[0035] Figure 8A schematic diagram illustrating the meshing of a motor gear, intermediate gear, movable gear, and first side gear according to some embodiments of this application;

[0036] Figure 9 Simplified structural diagrams of the first side gear, the second side gear, and the movable gear provided in some embodiments of this application;

[0037] Figure 10 This is a schematic diagram of the structure of the movable gear near the first side gear provided in some embodiments of this application;

[0038] Figure 11 This is a schematic diagram of the structure of the movable gear near the second side gear provided in some embodiments of this application;

[0039] Figure 12 This is a schematic diagram of the structure of the movable gear and the first side gear provided in some embodiments of this application;

[0040] Figure 13 This is a schematic diagram of the structure of the movable gear and the second side gear provided in some embodiments of this application;

[0041] Figure 14 The following are schematic diagrams illustrating the structure of the first side gear provided in some embodiments of this application.

[0042] Figure 15 This is a schematic diagram of the structure of the second side gear provided in some embodiments of this application;

[0043] Figure 16 Exploded views of the transmission structure and transmission housing provided in some embodiments of this application Figure 1 ;

[0044] Figure 17 Exploded views of the transmission structure and transmission housing provided in some embodiments of this application Figure 2 .

[0045] The following are the labeling elements in the figure:

[0046] 100 - Garment processing equipment;

[0047] 10 - Outer shell; 20 - Cylindrical section; 30 - Drive pump structure; 40 - First circulation pipe; 50 - Second circulation pipe; 60 - Drainage pipe;

[0048] 31-Housing; 32-Drive motor; 33-First impeller; 34-Second impeller; 35-Transmission structure; 36-Filter element device; 37-Emergency drain pipe;

[0049] 311-Main housing; 312-Transmission housing;

[0050] 3111-Main cylinder section; 3112-Inlet pipe section; 3113-First impeller mounting section; 3114-Second impeller mounting section; 3115-First inlet; 3116-First outlet; 3117-Second outlet;

[0051] 31131 - First installation body; 31132 - First cover; 31133 - First water outlet pipe section;

[0052] 31141 - Second mounting body; 31142 - Second cover; 31143 - Second water outlet pipe section;

[0053] 3121 - First housing part; 3122 - Second housing part;

[0054] 31211 - First socket; 31212 - Second support cylinder; 31213 - Fourth support cylinder; 31214 - Second socket; 31215 - Third socket;

[0055] 31221 - First support cylinder; 31222 - Third support cylinder; 31223 - Fifth support cylinder; 31224 - Sixth support cylinder; 31225 - Seventh support cylinder;

[0056] 321 - Motor shaft;

[0057] 351-Motor gear; 352-Intermediate transmission gear set; 353-First end gear; 354-Second end gear; 355-Intermediate gear; 356-First shaft; 357-Second shaft; 358-Third shaft; 359-Fourth shaft; 3510-Fifth shaft; 3511-Sixth shaft;

[0058] 3521 - First side gear; 3522 - Second side gear; 3523 - Movable gear; 3524 - First mating part; 3525 - Second mating part; 3526 - First meshing part; 3527 - Second meshing part;

[0059] 35211 - First groove;

[0060] 35221 - Second groove;

[0061] 35231 - First end face; 35232 - First end face;

[0062] 35241 - First mating tooth; 35242 - First mating contact face;

[0063] 35251 - Second mating tooth; 35252 - Second mating contact face;

[0064] 35261 - First bevel tooth; 35262 - First contact end face of the bevel tooth;

[0065] 35271 - Second bevel tooth; 35272 - Second contact end face of bevel tooth. Detailed Implementation

[0066] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings. The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0067] In the description of this application, it should be understood that the terms "length", "width", "thickness", "top", "bottom", "inner", "outer", "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0068] To facilitate a clear description of the technical solutions of this application, the terms "first" and "second" are used to distinguish identical or similar items with essentially the same function and effect. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and that the terms "first" and "second" do not necessarily imply that they are different.

[0069] In this application, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0070] In this application, "and / or" is merely a way of describing the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0071] It should be noted that, in this application, the words "in one embodiment," "exemplarily," and "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "in one embodiment," "exemplarily," or "for example" should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of words such as "in one embodiment," "exemplarily," and "for example" is intended to present the relevant concepts in a specific manner.

[0072] Please see Figures 1-2 , Figure 1 This is a schematic diagram of the structure of the garment processing device 100 provided in some embodiments of this application. Figure 2 This is a simplified schematic diagram showing the connection between the cylindrical part 20 and the drive pump structure 30 in some embodiments of this application.

[0073] The clothing processing device 100 provided in this embodiment can be a washing machine or a washer-dryer combo, etc. Please refer to... Figure 1 and Figure 2 The clothing processing device 100 provided in this application embodiment includes an outer shell 10 and a tubular part 20. The tubular part 20 is disposed inside the outer shell 10, and the clothing to be cleaned can be put into the tubular part 20 for cleaning.

[0074] In some examples, the garment processing equipment 100 also includes a shock absorber. The tubular part 20 is supported inside the outer casing 10 by the shock absorber. The shock absorber can alleviate the severe vibrations and impacts generated by the garment processing equipment 100 during washing and dehydration, and ensure the stable operation of the garment processing equipment 100.

[0075] Please see Figure 2 The garment processing device 100 provided in this application embodiment also includes a drive pump structure 30, which is connected to the tubular part 20 through a pipeline.

[0076] Please see Figure 2 The drive pump structure 30 is connected to the tubular section 20 via a first circulation pipe 40, a second circulation pipe 50, and a drain pipe 60. The drive pump structure 30 has two operating states: in the first operating state, it drives the washing water in the tubular section 20 to be discharged through the drain pipe 60; in the second operating state, it drives the washing water in the tubular section 20 to be discharged through the first circulation pipe 40, and then flows back into the tubular section 20 after passing through the drive pump structure 30 and the second circulation pipe 50.

[0077] In some examples, the cylinder section 20 includes a cylinder body and a door seal structure, the door seal structure being disposed at the open end of the cylinder body, and the second circulation pipe 50 being connected to a spray head on the door seal structure.

[0078] Please see Figures 3-5 , Figure 3 This is a schematic diagram of the drive pump structure 30 provided in some embodiments of this application. Figure 4 Exploded view of the drive pump structure 30 provided in some embodiments of this application Figure 1 , Figure 5 Exploded view of the drive pump structure 30 provided in some embodiments of this application Figure 2 .

[0079] The drive pump structure 30 provided in this embodiment includes a housing 31, a drive motor 32, a first impeller 33, a second impeller 34, and a transmission structure 35. Please refer to [link to relevant documentation]. Figure 3 The diagram illustrates the housing 31 and the drive motor 32. Please refer to [link / reference]. Figure 5 The diagram illustrates the first impeller 33, the second impeller 34, and the transmission structure 35. The first impeller 33, the second impeller 34, and the transmission structure 35 are supported inside the housing 31. The first impeller 33 and the second impeller 34 are connected to the drive motor 32 through the transmission structure 35.

[0080] Please see Figure 3 The housing 31 has a first water inlet 3115, a first water outlet 3116, and a second water outlet 3117. When the drive motor 32 rotates in the first direction, it can drive the first impeller 33 to rotate through the transmission structure 35, so that the washing water in the tub 20 can enter through the first water inlet 3115, pass through the first impeller 33, and be discharged from the first water outlet 3116. When the drive motor 32 rotates in the second direction, it can drive the second impeller 34 to rotate through the transmission structure 35, so that the washing water in the tub 20 can enter through the first water inlet 3115, pass through the second impeller 34, and be discharged from the second water outlet 3117.

[0081] It should be noted that the first direction is opposite to the second direction; that is, when the first direction is positive, the second direction is negative, and when the first direction is negative, the second direction is positive.

[0082] In existing related technologies, the drive pump of the garment processing equipment includes two motors, which are respectively connected to two corresponding impellers through a transmission mechanism. This results in a large size, heavy weight, and high cost of the drive pump. In this embodiment, by setting the first impeller 33 and the second impeller 34 of the drive pump structure 30 to be connected to the same drive motor 32 through a transmission structure 35, the operation of the first impeller 33 or the second impeller 34 can be controlled by the different rotation directions of the drive motor 32. While ensuring that the drive pump structure 30 can work normally, it is beneficial to reduce the size and weight of the drive pump structure 30, reduce the cost of the drive pump structure 30, and thus reduce the size and cost of the garment processing equipment 100.

[0083] It is worth noting that the drive pump structure 30 provided in this application embodiment is not limited to being applied only to the garment processing equipment 100, but can also be applied to other equipment besides the garment processing equipment 100.

[0084] In some embodiments, see Figure 3 The housing 31 includes a main housing 311 and a transmission housing 312. The drive motor 32 is fixed on the outer side of the main housing 311. The transmission housing 312 is disposed on one side of the main housing 311 and the two are connected. The transmission structure 35 is disposed in the transmission housing 312. The first impeller 33 and the second impeller 34 are disposed in the main housing 311.

[0085] See some examples. Figure 4 The drive motor 32 includes a motor shaft 321, one end of which passes through the transmission housing 312 to connect with the transmission structure 35 inside the transmission housing 312.

[0086] See some examples. Figure 4 The transmission structure 35 includes a third shaft 358 and a fourth shaft 359, which are respectively installed outside the transmission housing 312. The third shaft 358 and the fourth shaft 359 are respectively connected to the first impeller 33 and the second impeller 34 inside the main housing 311. When the third shaft 358 rotates, it drives the first impeller 33 to rotate, and when the fourth shaft 359 rotates, it drives the second impeller 34 to rotate.

[0087] In some examples, the motor housing of the drive motor 32 may be detachably connected to the main housing 311, for example, by means of screws or bolts.

[0088] In some examples, the transmission housing 312 may be detachably connected to the main housing 311 via a connector.

[0089] In this embodiment, by setting the housing 31 to include a main housing 311 and a transmission housing 312, the first impeller 33, the second impeller 34 and the transmission structure 35 are protected. At the same time, by setting the transmission housing 312 to one side of the main housing 311, the relative positions of the transmission structure 35 and the first impeller 33 and the second impeller 34 are conveniently arranged.

[0090] In some embodiments, see Figure 4 The main housing 311 includes a main cylinder part 3111, a water inlet pipe part 3112, a first impeller mounting part 3113 and a second impeller mounting part 3114, which are disposed on the circumferential side of the main cylinder part 3111.

[0091] Please see Figure 4 The inlet pipe section 3112, the first impeller mounting section 3113, and the second impeller mounting section 3114 are disposed on both sides of the main cylinder section 3111, and the first impeller mounting section 3113 and the second impeller mounting section 3114 are arranged sequentially along the axial direction of the main cylinder section 3111. The interiors of the inlet pipe section 3112, the first impeller mounting section 3113, and the second impeller mounting section 3114 are all connected to the interior of the main cylinder section 3111. Please refer to [link / reference]. Figure 4 The illustration shows that the water inlet pipe 3112 and the first impeller mounting part 3113 are arranged opposite to each other. In other examples, the second impeller mounting part 3114 may be arranged opposite to the water inlet pipe 3112, or neither the first impeller mounting part 3113 nor the second impeller mounting part 3114 may be arranged opposite to the water inlet pipe 3112.

[0092] Please see Figure 5 A first inlet 3115 is formed on the inlet pipe section 3112, and a first impeller 33 and a second impeller 34 are respectively installed in the first impeller mounting section 3113 and the second impeller mounting section 3114. A first outlet 3116 and a second outlet 3117 are respectively formed on the first impeller mounting section 3113 and the second impeller mounting section 3114.

[0093] In some examples, the water inlet pipe 3112 may be integrally formed on the main cylinder 3111.

[0094] See some examples. Figure 5The first impeller mounting part 3113 includes a first mounting body 31131, a first cover 31132, and a first water outlet pipe part 31133. The first water outlet pipe part 31133 is disposed on the circumferential side of the first mounting body 31131 and is internally connected to the first mounting body 31131. The first cover 31132 is disposed on the side of the first mounting body 31131 away from the main cylinder part 3111. For example, the first cover 31132 can be detachably connected to the first mounting body 31131. The first impeller 33 is disposed inside the first mounting body 31131. The first cover 31132 is provided with a hole for the insertion of the third shaft 358.

[0095] See some examples. Figure 5 The second impeller mounting part 3114 includes a second mounting body 31141, a second cover 31142, and a second water outlet pipe part 31143. The second water outlet pipe part 31143 is disposed on the circumferential side of the second mounting body 31141 and is internally connected to the second mounting body 31141. The second cover 31142 is disposed on the side of the second mounting body 31141 away from the main cylinder part 3111. For example, the second cover 31142 can be detachably connected to the second mounting body 31141. The second impeller 34 is disposed inside the second mounting body 31141. The second cover 31142 is provided with a hole for the fourth shaft 359 to be inserted.

[0096] In some examples, the first mounting body 31131 may be integrally formed on the main cylinder portion 3111, and the second mounting body 31141 may be integrally formed on the main cylinder portion 3111.

[0097] See some examples. Figure 5 The first water outlet pipe section 31133 and the second water outlet pipe section 31143 are located on the same side of the main housing 311.

[0098] In this embodiment of the application, the main housing 311 is provided with a main cylinder part 3111, a water inlet pipe part 3112, a first impeller mounting part 3113 and a second impeller mounting part 3114, so as to provide a first water inlet 3115, a first water outlet 3116 and a second water outlet 3117 on the main housing 311, and to facilitate the installation of the first impeller 33 and the second impeller 34 in the main housing 311.

[0099] In some embodiments, see Figure 5 The drive pump structure 30 also includes a filter element device 36, which is inserted into the main cylinder 3111 from one end and is used to filter water entering the main cylinder 3111 from the first inlet 3115.

[0100] In some examples, the main cylinder portion 3111 includes a first end and a second end disposed opposite to each other along its length, an inlet pipe portion 3112 is located near the first end, a filter cartridge 36 is inserted from the first end, and the second end of the main cylinder portion 3111 is blocked.

[0101] In some examples, the filter element 36 may be detachably connected to the main body 3111.

[0102] In this embodiment, the drive pump structure 30 also includes a filter element device 36 to filter the water entering the main cylinder 3111 from the first water inlet 3115, filtering impurities (such as hair, fibers, coins, buttons, etc.) in the washing water, and protecting the drive pump structure 30 so that it can operate normally.

[0103] In some embodiments, see Figure 5 The drive pump structure 30 also includes an emergency drain pipe 37, which is connected to the housing 31 and is connected to the first water inlet 3115.

[0104] See some examples. Figure 5 The emergency drain pipe 37 is connected to the main cylinder 3111, and the connection position of the emergency drain pipe 37 to the main cylinder 3111 is close to the connection position of the water inlet pipe 3112 to the main cylinder 3111.

[0105] When it is necessary to urgently drain the washing water in the drum section 20, the plug at the end of the emergency drain pipe 37 can be opened, so that the water in the drum section 20 can enter the first water inlet 3115 through the pipe and then be discharged through the emergency drain pipe 37.

[0106] In this embodiment, the drive pump structure 30 is further provided with an emergency drain pipe 37, so that when the drive pump structure 30 fails, is powered off, or is abnormal and cannot drain normally, the residual water in the cylinder section 20 can be manually drained to avoid water accumulation and problems, and at the same time to facilitate maintenance or emergency handling.

[0107] Please see Figures 6-11 , Figure 6 This is a schematic diagram showing the connection between the drive motor 32, transmission structure 35, first impeller 33, and second impeller 34 provided in some embodiments of this application. Figure 7 This is a schematic diagram of the structure of the motor gear 351 and the intermediate transmission gear set 352 provided in some embodiments of this application. Figure 8 This is a schematic diagram illustrating the meshing structure of the motor gear 351, intermediate gear 355, movable gear 3523, and first side gear 3521 provided in some embodiments of this application. Figure 9This is a simplified structural diagram of the first side gear 3521, the second side gear 3522, and the movable gear 3523 provided in some embodiments of this application. Figure 10 This is a schematic diagram of the structure of the movable gear 3523 near the first side gear 3521 provided in some embodiments of this application. Figure 11 This is a schematic diagram of the structure of the movable gear 3523 near the second side gear 3522 provided in some embodiments of this application.

[0108] In some embodiments, the transmission structure 35 is a gear transmission structure.

[0109] Gear transmission structure refers to the precise transmission of the rotational motion and power of the driving component (such as a motor or engine) to the driven component through the meshing of the teeth of multiple gears, and can flexibly realize changes in speed, torque and direction of motion.

[0110] In this embodiment, the transmission structure 35 is configured as a gear transmission structure to facilitate stable and efficient transmission.

[0111] In some embodiments, see Figure 6 The transmission structure 35 includes a motor gear 351, an intermediate transmission gear set 352, a first end gear 353, and a second end gear 354. The motor gear 351 is connected to the motor shaft 321 of the drive motor 32. The first end gear 353 and the second end gear 354 are coaxially connected to the first impeller 33 and the second impeller 34, respectively. The motor gear 351, the first end gear 353, and the second end gear 354 are all connected to the intermediate transmission gear set 352 for transmission.

[0112] In some examples, the motor gear 351 can be configured to directly mesh with the intermediate transmission gear set 352 to achieve a transmission connection between the motor gear 351 and the intermediate transmission gear set 352; or, in other examples, one or more gears can be configured between the motor gear 351 and the intermediate transmission gear set 352, for example, please refer to [reference needed]. Figure 6 The transmission structure 35 also includes one or more intermediate gears 355, which are respectively connected to the intermediate transmission gear set 352 and the motor gear 351.

[0113] In some examples, the first end gear 353 can be directly meshed with the intermediate transmission gear set 352 to achieve a transmission connection between the first end gear 353 and the intermediate transmission gear set 352; or, in other examples, one or more gears can be provided between the first end gear 353 and the intermediate transmission gear set 352, or the first end gear 353 and the intermediate transmission gear set 352 can be connected by a gear conveyor belt or the like.

[0114] In some examples, the second end gear 354 can be configured to mesh directly with the intermediate transmission gear set 352 to achieve a transmission connection between the second end gear 354 and the intermediate transmission gear set 352; or, in other examples, one or more gears can be configured between the second end gear 354 and the intermediate transmission gear set 352, or the second end gear 354 and the intermediate transmission gear set 352 can be configured to be connected via a gear conveyor belt or the like.

[0115] When the drive motor 32 rotates in the first direction, it can drive the motor gear 351 to rotate in the first direction, and drive the first end gear 353 to rotate through the intermediate transmission gear set 352, thereby driving the first impeller 33 to rotate; when the drive motor 32 rotates in the second direction, it can drive the motor gear 351 to rotate in the second direction, and drive the second end gear 354 to rotate through the intermediate transmission gear set 352, thereby driving the second impeller 34 to rotate.

[0116] In this embodiment, the transmission structure 35 includes a motor gear 351, an intermediate transmission gear set 352, a first end gear 353, and a second end gear 354, which facilitates stable and efficient transmission.

[0117] In some embodiments, see Figure 7 The intermediate transmission gear set 352 includes a first side gear 3521, a second side gear 3522, and a movable gear 3523. The first side gear 3521, the second side gear 3522, and the movable gear 3523 are coaxially arranged, and the movable gear 3523 is located between the first side gear 3521 and the second side gear 3522. The movable gear 3523 is movable along the axial direction. The movable gear 3523 is driven by the motor gear 351 and is a helical gear. The first side gear 3521 is driven by the first end gear 353, and the second side gear 3522 is driven by the second end gear 354.

[0118] The movable gear 3523 is movable along the axial direction, which means that the movable gear 3523 can move along its own axis. Since the first side gear 3521, the second side gear 3522 and the movable gear 3523 are coaxially arranged, the movable gear 3523 can move along the axial direction of the first side gear 3521, the second side gear 3522 and the movable gear 3523.

[0119] See some examples. Figure 7The transmission structure 35 includes a second shaft 357, which passes through a first side gear 3521, a movable gear 3523, and a second side gear 3522. The first side gear 3521, the movable gear 3523, and the second side gear 3522 are supported on the transmission housing 312 by the second shaft 357. The second shaft 357 is fixed to the transmission housing 312. The first side gear 3521, the movable gear 3523, and the second side gear 3522 are all rotatably connected to the second shaft 357. Alternatively, in other examples, please refer to... Figure 9 The transmission structure 35 includes a fifth shaft 3510 and a sixth shaft 3511. A first side gear 3521 is sleeved on the fifth shaft 3510 and one end of the fifth shaft 3510 is supported on the transmission housing 312. A second side gear 3522 is sleeved on the sixth shaft 3511 and one end of the sixth shaft 3511 is supported on the transmission housing 312. The other ends of the fifth shaft 3510 and the other ends of the sixth shaft 3511 are both passed through the movable gear 3523, and there is a gap between the ends of the fifth shaft 3510 and the sixth shaft 3511 that are close to each other.

[0120] In some examples, the first side gear 3521, the movable gear 3523, and the second side gear 3522 are all rotatably connected to the second shaft 357, and the first side gear 3521 and the second side gear 3522 can be configured to move along the axial direction of the second shaft 357; or, the first side gear 3521 and the second side gear 3522 can only rotate relative to the second shaft 357 and cannot move relative to the second shaft 357 along the axial direction.

[0121] Please see Figure 7 The transmission structure 35 also includes an intermediate gear 355 and a first shaft 356. The intermediate gear 355 meshes with the movable gear 3523 and the motor gear 351 respectively. Both the intermediate gear 355 and the motor gear 351 are helical gears. The first shaft 356 passes through the intermediate gear 355 and the intermediate gear 355 is supported in the transmission housing 312 by the first shaft 356.

[0122] See some examples. Figure 8 Along the direction from the movable gear 3523 to the first side gear 3521 (i.e. Figure 8 (In the direction indicated by the middle arrow A), the tooth edge of the movable gear 3523 rotates clockwise (i.e., Figure 8(As indicated by arrow a) When the middle gear 355 rotates in the direction indicated by arrow c, it will drive the movable gear 3523 to rotate in the direction indicated by arrow b. At this time, the movable gear 3523 is pushed in the direction indicated by arrow A, causing the movable gear 3523 to move closer to the first side gear 3521. After the movable gear 3523 moves into position, it can cooperate with the first side gear 3521 and drive the first side gear 3521 to rotate together with the movable gear 3523. Similarly, when the movable gear 3523 rotates in the direction indicated by arrow a, the movable gear 3523 is pushed away from the direction indicated by arrow A, causing the movable gear 3523 to move closer to the second side gear 3522. After the movable gear 3523 moves into position, it can cooperate with the second side gear 3522 and drive the second side gear 3522 to rotate together with the movable gear 3523. It should be noted that in other examples, the direction can also be set along the path from the active gear 3523 to the first side gear 3521 (i.e., Figure 8 (In the direction indicated by the middle arrow A), the tooth edge of the movable gear 3523 rotates counterclockwise (i.e., Figure 8 The direction indicated by the middle arrow b) is tilted.

[0123] It should be noted that when the movable gear 3523 moves toward the first side gear 3521, it stops moving because it cannot continue to move toward the first side gear 3521 due to the restriction of the first side gear 3521. In addition, when the first side gear 3521 is rotatably connected to the second shaft 357 and is also configured to move along the axis of the second shaft 357, the movable gear 3523 can drive the first side gear 3521 to move along the axis when it moves toward the first side gear 3521, until the first side gear 3521 is restricted by the transmission housing 312 and cannot move along the axis, thereby preventing the movable gear 3523 from moving toward the first side gear 3521.

[0124] When the movable gear 3523 moves toward the direction of the second side gear 3522, and is unable to continue moving toward the second side gear 3522 due to the restriction of the second side gear 3522, the movable gear 3523 stops moving. Alternatively, when the second side gear 3522 is rotatably connected to the second shaft 357 and is also configured to move along the axis of the second shaft 357, the movable gear 3523 can push the second side gear 3522 to move along the axis when it moves toward the second side gear 3522, until the second side gear 3522 is restricted by the transmission housing 312, preventing it from moving along the axis, and thus preventing the movable gear 3523 from continuing to move toward the second side gear 3522.

[0125] In this embodiment, the movable gear 3523 is configured as a helical gear so that it can move toward the first side gear 3521 or the second side gear 3522 when it rotates.

[0126] In some implementations, please refer to Figure 6 There is one intermediate gear 355, which meshes with the motor gear 351 and the movable gear 3523 respectively. At this time, both the intermediate gear 355 and the motor gear 351 are helical gears. Alternatively, in other embodiments, there may be multiple intermediate gears 355, and at least one intermediate gear 355 meshing with the movable gear 3523 is a helical gear.

[0127] In some embodiments, a first meshing portion 3526 and a second meshing portion 3527 are respectively provided on two opposite end faces of the movable gear 3523. (See also...) Figure 8 The diagram illustrates the second meshing part 3527. Meanwhile, a first mating part 3524 is provided on the end face of the first side gear 3521 facing the movable gear 3523, and a second mating part 3525 is provided on the end face of the second side gear 3522 facing the movable gear 3523.

[0128] When the drive motor 32 rotates in the first direction, the movable gear 3523 rotates and moves along the axis toward the first side gear 3521 until the first meshing part 3526 and the first mating part 3524 engage, causing the movable gear 3523 to drive the first side gear 3521 to rotate together. When the first side gear 3521 rotates, it can drive the first end gear 353 to rotate. (See also...) Figure 10 The diagram illustrates the positional relationship between the first side gear 3521, the second side gear 3522, and the movable gear 3523 when the first meshing part 3526 and the first mating part 3524 are connected. When the drive motor 32 rotates in the second direction, the movable gear 3523 rotates and moves along the axis toward the second side gear 3522 until the second meshing part 3527 and the second mating part 3525 are connected, causing the movable gear 3523 to drive the second side gear 3522 to rotate together. When the second side gear 3522 rotates, it can drive the second end gear 354 to rotate. Please refer to [link to relevant documentation]. Figure 11 The diagram illustrates the positional relationship between the first side gear 3521, the second side gear 3522, and the movable gear 3523 when the first meshing part 3526 and the first mating part 3524 are connected.

[0129] In this embodiment, a first meshing portion 3526 and a second meshing portion 3527 are respectively provided on the two opposite end faces of the movable gear 3523, and a first mating portion 3524 and a second mating portion 3525 are respectively provided on the first side gear 3521 and the second side gear 3522, so that when the movable gear 3523 rotates, it drives the first side gear 3521 or the second side gear 3522 to rotate, thereby realizing the operation of the first impeller 33 or the second impeller 34 by using the different rotation directions of the drive motor 32.

[0130] Please see Figures 12-15 , Figure 12 This is a schematic diagram of the structure of the movable gear 3523 and the first side gear 3521 provided in some embodiments of this application. Figure 13 This is a schematic diagram of the structure of the movable gear 3523 and the second side gear 3522 provided in some embodiments of this application. Figure 14 The following are schematic diagrams illustrating the structure of the first side gear 3521 provided in some embodiments of this application. Figure 15 This is a schematic diagram of the structure of the second side gear 3522 provided in some embodiments of this application.

[0131] For ease of description, the two ends of the movable gear 3523 along the thickness direction are referred to as the first end face 35231 and the second end face 35232, respectively. Please refer to [link / reference]. Figure 12 The first side gear 3521 is located on the side of the movable gear 3523 away from the second end face 35232, that is, the first side gear 3521 is close to the first end face 35231 of the movable gear 3523. Please refer to [link / reference]. Figure 13 The second side gear 3522 is located on the side of the movable gear 3523 away from the first end face 35231, that is, the second side gear 3522 is close to the second end face 35232 of the movable gear 3523. Please refer to [link / reference]. Figure 12 A second meshing portion 3527 is provided on the second end face 35232 of the movable gear 3523. Please refer to [link / reference]. Figure 13 A first meshing tooth portion is provided on the first end face 35231 of the movable gear 3523. (See also...) Figure 14 The diagram illustrates that a first mating part 3524 is provided on the end face of the first side gear 3521. Please refer to [link / reference]. Figure 15 The diagram illustrates that a second mating part 3525 is provided on the end face of the second side gear 3522.

[0132] In some embodiments, see Figure 13 The first engaging portion 3526 includes at least one first ramp tooth 35261, see [link to previous section]. Figure 14 The first mating part 3524 includes at least one first mating tooth 35241, which mates with a first ramp tooth 35261.

[0133] See some examples. Figure 13 Along the circumferential direction of the movable gear 3523, one end of the first helical tooth 35261 is the first contact end face 35262 of the helical tooth. Please refer to [link / reference]. Figure 13 From the first contact end face 35262 of the helical tooth to the direction away from the first contact end face 35262 of the helical tooth (i.e. Figure 13 (In the direction indicated by the middle arrow a), the thickness of the first inclined gear 35261 gradually decreases along the axis of the movable gear 3523.

[0134] Please see Figure 14 Along the circumferential direction of the first side gear 3521, one end of the first mating tooth 35241 is the first mating contact end face 35242. Please refer to [link / reference]. Figure 14 From the first mating contact end face 35242 to the direction away from the first mating contact end face 35242 (i.e. Figure 14 (In the direction indicated by the middle arrow a), the thickness of the first mating contact end face 35242 gradually decreases along the axis of the first side gear 3521.

[0135] Please see Figure 13 , Figure 13 The direction indicated by the middle arrow 'a' is counterclockwise for the movable gear 3523. Please refer to [link / reference]. Figure 14 , Figure 14 The direction indicated by the middle arrow a is the counterclockwise direction of the first side gear 3521; similarly, assuming that the thickness of the first ramp tooth 35261 gradually decreases in the clockwise direction along the movable gear 3523, the thickness of the first mating tooth 35241 gradually decreases in the clockwise direction along the first side gear 3521, so as to achieve the mating of the first mating tooth 35241 with the first ramp tooth 35261.

[0136] When the movable gear 3523 moves along the axial direction until the first mating tooth 35241 engages with the first chamfered tooth 35261, the first contact end face 35262 of the chamfered tooth 35261 contacts the first mating contact end face 35242 of the corresponding first mating tooth 35241, thereby realizing that when the movable gear 3523 moves along the axial direction... Figure 13 When rotated in the direction indicated by the middle arrow b, it can drive the first side gear 3521 to rotate together.

[0137] Please see Figure 12 The second engagement portion 3527 includes at least one second chamfer tooth 35271, see [link to previous section]. Figure 15 The second mating part 3525 includes at least one second mating tooth 35251, which mates with a second ramp tooth 35271.

[0138] Please see Figure 12One end of the second helical tooth 35271 along the circumferential direction of the movable gear 3523 is the second contact end face 35272 of the helical tooth. Please refer to [link / reference]. Figure 12 From the second contact end face 35272 of the helical tooth to the direction away from the second contact end face 35272 of the helical tooth (i.e. Figure 12 (In the direction indicated by the middle arrow a), the thickness of the second inclined gear 35271 gradually decreases along the axis of the movable gear 3523.

[0139] Please see Figure 15 Along the circumferential direction of the second side gear 3522, one end of the second mating tooth 35251 is the second mating contact end face 35252. Please refer to [link / reference]. Figure 15 From the second mating contact end face 35252 to the direction away from the second mating contact end face 35252 (i.e. Figure 15 (In the direction indicated by the middle arrow a), the thickness of the second mating contact end face 35252 gradually decreases along the axis of the second side gear 3522.

[0140] Please see Figure 12 , Figure 12 The direction indicated by the middle arrow 'a' is counterclockwise for the movable gear 3523. Please refer to [link / reference]. Figure 15 , Figure 15 The direction indicated by the middle arrow a is the counterclockwise direction of the second side gear 3522; similarly, assuming that the thickness of the second ramp tooth 35271 gradually decreases in the clockwise direction of the movable gear 3523, the thickness of the second mating tooth 35251 gradually decreases in the clockwise direction of the second side gear 3522, so as to achieve the mating of the second mating tooth 35251 with the second ramp tooth 35271.

[0141] When the movable gear 3523 moves along the axial direction until the second mating tooth 35251 engages with the second chamfer tooth 35271, the second contact end face 35272 of the chamfer tooth 35271 contacts the second mating contact end face 35252 of the corresponding second mating tooth 35251, thereby realizing that when the movable gear 3523 moves along the axial direction... Figure 12 When rotated in the direction indicated by the middle arrow b, it can drive the second side gear 3522 to rotate together.

[0142] It should be noted that, please refer to Figure 13 From the first contact end face 35262 of the helical tooth to the direction away from the first contact end face 35262 of the helical tooth (i.e. Figure 13 (In the direction indicated by the middle arrow a), the thickness of the first bevel tooth 35261 gradually decreases along the axis of the movable gear 3523. Figure 13 The direction indicated by the middle arrow 'a' is counterclockwise for the movable gear 3523; please refer to [link / reference]. Figure 12 From the second contact end face 35272 of the helical tooth to the direction away from the second contact end face 35272 of the helical tooth (i.e. Figure 12(In the direction indicated by the middle arrow a), the thickness of the second inclined gear 35271 gradually decreases along the axis of the movable gear 3523. Figure 12 The direction indicated by the middle arrow 'a' is counterclockwise for the movable gear 3523. Figure 13 The first meshing portion 3526 is viewed from the first end face 35231 of the movable gear 3523, and... Figure 12 When viewing the second meshing portion 3527 from the second end face 35232 of the movable gear 3523, that is, when viewing the first meshing portion 3526 from the first end face 35231 of the movable gear 3523, the thickness of the first helical tooth 35261 gradually decreases in the counterclockwise direction. Similarly, when viewing the second meshing portion 3527 from the second end face 35232 of the movable gear 3523, the thickness of the second helical tooth 35271 gradually decreases in the counterclockwise direction. When the same side of the movable gear 3523 (either the first end face 35231 or the second end face 35232) is used as a reference, the direction from the first contact end face 35262 of the helical tooth to the direction away from the first contact end face 35262 of the helical tooth is opposite to the direction from the second contact end face 35272 of the helical tooth to the direction away from the second contact end face 35272 of the helical tooth.

[0143] Furthermore, assuming that when the thickness of the first bevel tooth 35261 gradually decreases when viewed from the first end face 35231 of the movable gear 3523 in a clockwise direction, the thickness of the second bevel tooth 35271 gradually decreases when viewed from the second end face 35232 of the movable gear 3523 in a clockwise direction.

[0144] In this embodiment of the application, the first mating tooth 35241 is configured to engage with the first ramp tooth 35261 so that the first side gear 3521 can be rotated when the movable gear 3523 rotates; the second mating tooth 35251 is configured to engage with the second ramp tooth 35271 so that the second side gear 3522 can be rotated when the movable gear 3523 rotates.

[0145] It should be noted that, in the case where the first side gear 3521 and the second side gear 3522 are rotatably connected to the second shaft 357, and the first side gear 3521 and the second side gear 3522 can also move along the axial direction of the second shaft 357, when the first mating tooth 35241 engages with the first chamfer tooth 35261 and the movable gear 3523 drives the first side gear 3521 to rotate, since the second side gear 3522 is movably connected to the second shaft 357, assuming that the second side gear 3522 moves to a position engaging with the movable gear 3523, due to the shapes of the second mating tooth 35251 and the second chamfer tooth 35271, the second side gear 3522 will be moved away from the movable gear 3523. The thrust of the movable gear 3523, i.e., when the movable gear 3523 rotates, will push the second side gear 3522 away from the movable gear 3523; similarly, when the second mating tooth 35251 and the second ramp tooth 35271 are engaged and the movable gear 3523 drives the second side gear 3522 to rotate, since the first side gear 3521 is movably connected to the second shaft 357, assuming that the first side gear 3521 moves to the position engaged with the movable gear 3523, due to the shape of the first mating tooth 35241 and the first ramp tooth 35261, a thrust will be generated on the first side gear 3521 away from the movable gear 3523, i.e., when the movable gear 3523 rotates, it will push the first side gear 3521 away from the movable gear 3523.

[0146] In some embodiments, see Figure 12 The diameter of the movable gear 3523 is smaller than the diameter of the first side gear 3521. A first groove 35211 is formed on the end face of the first side gear 3521 facing the movable gear 3523. Please refer to [link / reference]. Figure 14 The first mating part 3524 is disposed on the bottom surface of the first groove 35211. When the first meshing part 3526 is connected to the first mating part 3524, the movable gear 3523 extends into the first groove 35211.

[0147] See some examples. Figure 14 The first mating part 3524 does not protrude from the end face of the corresponding side of the first side gear 3521. Please refer to [link / reference]. Figure 13 The first meshing part 3526 does not protrude from the first end face 35231 of the movable gear 3523.

[0148] In this embodiment, a first groove 35211 is formed on the end face of the first side gear 3521 facing the movable gear 3523, so as to minimize the size of the intermediate transmission gear set 352 along the axial direction and make the structure of the intermediate transmission gear set 352 compact.

[0149] In some embodiments, see Figure 13The diameter of the movable gear 3523 is smaller than the diameter of the second side gear 3522. A second groove 35221 is formed on the end face of the second side gear 3522 facing the movable gear 3523. Please refer to [link / reference]. Figure 15 The second mating part 3525 is provided on the bottom surface of the second groove 35221. When the second meshing part 3527 is connected to the second mating part 3525, the movable gear 3523 extends into the second groove 35221.

[0150] See some examples. Figure 15 The second mating part 3525 does not protrude from the end face of the corresponding side of the second side gear 3522. Please refer to [link / reference]. Figure 12 The second meshing part 3527 does not protrude from the second end face 35232 of the movable gear 3523.

[0151] In this embodiment, a second groove 35221 is formed on the end face of the second side gear 3522 facing the movable gear 3523, so as to minimize the size of the intermediate transmission gear set 352 along the axial direction and make the structure of the intermediate transmission gear set 352 compact.

[0152] It should be noted that the above embodiments respectively mentioned that a first groove 35211 is formed on the end face of the first side gear 3521 facing the movable gear 3523 and a second groove 35221 is formed on the end face of the second side gear 3522 facing the movable gear 3523. That is, the first groove 35211 is formed on the end face of the first side gear 3521 facing the movable gear 3523, and the second groove 35221 is formed on the end face of the second side gear 3522 facing the movable gear 3523; or, the first groove 35211 is formed only on the end face of the first side gear 3521 facing the movable gear 3523; or, the second groove 35221 is formed only on the end face of the second side gear 3522 facing the movable gear 3523.

[0153] It should be noted that the example above describes the first mating part 3524 not protruding from the end face corresponding to the first side gear 3521 and the first meshing part 3526 not protruding from the first end face 35231 of the movable gear 3523. In other embodiments, the first mating part 3524 may be provided to protrude from the end face corresponding to the first side gear 3521, and / or the first meshing part 3526 may protrude from the first end face 35231 of the movable gear 3523.

[0154] It should be noted that the example above describes the second mating part 3525 not protruding from the end face corresponding to the second side gear 3522 and the second meshing part 3527 not protruding from the second end face 35232 of the movable gear 3523. In other embodiments, the second mating part 3525 may be provided to protrude from the end face corresponding to the second side gear 3522, and / or the second meshing part 3527 may protrude from the second end face 35232 of the movable gear 3523.

[0155] In some embodiments, see Figure 13 The first meshing part 3526 includes a plurality of first ramp teeth 35261, which are spaced apart along the circumferential direction of the movable gear 3523.

[0156] See some examples. Figure 14 The first mating part 3524 includes a plurality of first mating teeth 35241, which are spaced apart along the circumferential direction of the first side gear 3521. The number of first mating teeth 35241 is equal to the number of first ramp teeth 35261, and the first mating teeth 35241 and the first ramp teeth 35261 correspond one-to-one.

[0157] In this embodiment of the application, the first meshing part 3526 is provided to include a plurality of first ramp teeth 35261, so as to facilitate the stable rotation of the first side gear 3521 by the movable gear 3523.

[0158] In some embodiments, see Figure 12 The second meshing part 3527 includes a plurality of second ramp teeth 35271, which are spaced apart along the circumferential direction of the movable gear 3523.

[0159] See some examples. Figure 15 The second mating part 3525 includes a plurality of second mating teeth 35251, which are spaced apart along the circumferential direction of the second side gear 3522. The number of second mating teeth 35251 is equal to the number of second ramp teeth 35271, and the second mating teeth 35251 and the second ramp teeth 35271 correspond one-to-one.

[0160] In this embodiment of the application, the second meshing part 3527 is provided to include a plurality of second ramp teeth 35271, so as to facilitate the stable rotation of the second side gear 3522 by the movable gear 3523.

[0161] In some embodiments, the first side gear 3521 may be configured to have the same size as the second gear.

[0162] In some embodiments, the motor gear 351, intermediate gear 355, and movable gear 3523 may be configured to be the same size.

[0163] Please see Figures 16-17 , Figure 16 Exploded view of the transmission structure 35 and transmission housing 312 provided in some embodiments of this application. Figure 1 , Figure 17 Exploded view of the transmission structure 35 and transmission housing 312 provided in some embodiments of this application. Figure 2 .

[0164] In some embodiments, see Figure 16 and Figure 17 The transmission housing 312 includes a first housing part 3121 and a second housing part 3122. The second housing part 3122 is disposed on the side of the first housing part 3121 away from the main housing 311 and the drive motor 32. The first housing part 3121 and the second housing part 3122 form a receiving cavity, and the transmission structure 35 is located in the receiving cavity.

[0165] In this embodiment, the transmission housing 312 is provided to include a first housing portion 3121 and a second housing portion 3122, so as to facilitate the assembly of the transmission structure 35 into the transmission housing 312.

[0166] In some embodiments, see Figure 16 A first insertion hole 31211 is provided on the first housing part 3121, and a first support cylinder 31221 is formed on the inner side of the second housing part 31. One end of the motor shaft 321 of the drive motor 32 can be inserted into the first insertion hole 31211 and supported on the first support cylinder 31221. The motor shaft 321 is rotatably connected to the first housing part 3121 and the second housing part 3122. The motor gear 351 is fixed on the motor shaft 321.

[0167] In some embodiments, see Figure 17 A second support cylinder 31212 is formed on the inner side of the first housing portion 3121. Please refer to [link / reference]. Figure 16 A third support cylinder 31222 is formed on the inner side of the second housing 31. The two ends of the first shaft 356 are respectively supported on the second support cylinder 31212 and the third support cylinder 31222. The intermediate gear 355 is disposed on the first shaft 356.

[0168] In some examples, an intermediate gear 355 may be fixed on a first shaft 356, and the first shaft 356 may be rotatably connected to a first housing portion 3121 and a second housing portion 3122; or, the first shaft 356 may be fixed on a first housing portion 3121 and a second housing portion 3122, and the intermediate gear 355 may be rotatably connected to the first shaft 356.

[0169] In some embodiments, see Figure 17A fourth support cylinder 31213 is formed on the inner side of the first housing portion 3121. Please refer to [link / reference]. Figure 16 A fifth support cylinder 31223 is formed on the inner side of the second housing 31. The two ends of the second shaft 357 are respectively supported on the fourth support cylinder 31213 and the fifth support cylinder 31223. The first side gear 3521, the movable gear 3523, and the second side gear 3522 are disposed on the second shaft 357. The second shaft 357 is fixed on the first housing part 3121 and the second housing part 3122. The first side gear 3521, the movable gear 3523, and the second side gear 3522 are all rotatably connected to the second shaft 357.

[0170] In some embodiments, see Figure 17 A second insertion hole 31214 is provided on the first housing portion 3121, please refer to [link / reference]. Figure 16 A sixth support cylinder 31224 is formed on the inner side of the second housing 31. One end of the third shaft 358 can be inserted into the second insertion hole 31214 and supported on the sixth support cylinder 31224. A first side gear 3521 is disposed on the third shaft 358 and fixed on the third shaft 358. The third shaft 358 is rotatably connected to the first housing part 3121 and the second housing part 3122.

[0171] In some embodiments, see Figure 17 A third insertion hole 31215 is provided on the first housing portion 3121. Please refer to [link / reference]. Figure 16 A seventh support cylinder 31225 is formed on the inner side of the second housing 31. One end of the fourth shaft 359 can be inserted into the third insertion hole 31215 and supported on the seventh support cylinder 31225. The second side gear 3522 is disposed on the fourth shaft 359 and fixed on the fourth shaft 359. The fourth shaft 359 is rotatably connected to the first housing part 3121 and the second housing part 3122.

[0172] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A drive pump structure, characterized in that, It includes a housing (31), a drive motor (32), a first impeller (33), a second impeller (34), and a transmission structure (35), wherein, The first impeller (33), the second impeller (34) and the transmission structure (35) are disposed in the housing (31), and the first impeller (33) and the second impeller (34) are connected to the drive motor (32) through the transmission structure (35); The shell (31) has a first water inlet (3115), a first water outlet (3116) and a second water outlet (3117); When the drive motor (32) rotates in the first direction, it can drive the first impeller (33) to rotate, so that the water enters from the first inlet (3115), passes through the first impeller (33), and is discharged from the first outlet (3116). When the drive motor (32) rotates in the second direction, it can drive the second impeller (34) to rotate, so that the water enters from the first inlet (3115), passes through the second impeller (34), and is discharged from the second outlet (3117).

2. The drive pump structure as described in claim 1, characterized in that, The transmission structure (35) includes a motor gear (351), an intermediate transmission gear set (352), a first end gear (353), and a second end gear (354). The motor gear (351) is connected to the motor shaft (321) of the drive motor (32). The first end gear (353) and the second end gear (354) are coaxially connected to the first impeller (33) and the second impeller (34), respectively. The motor gear (351), the first end gear (353), and the second end gear (354) are all connected to the intermediate transmission gear set (352) for transmission.

3. The drive pump structure as described in claim 2, characterized in that, The intermediate transmission gear set (352) includes a first side gear (3521), a second side gear (3522), and a movable gear (3523). The first side gear (3521), the second side gear (3522), and the movable gear (3523) are coaxially arranged, and the movable gear (3523) is located between the first side gear (3521) and the second side gear (3522). The movable gear (3523) is movable along its own axis, and the movable gear (3523) is connected to the motor gear (351) in a transmission connection. The movable gear (3523) is a helical gear. When the drive motor (32) rotates, the movable gear (3523) can move along its own axis and can move to a position that engages with the first side gear (3521) or the second side gear (3522) to drive the first side gear (3521) or the second side gear (3522) to rotate.

4. The drive pump structure as described in claim 3, characterized in that, The movable gear (3523) has a first meshing part (3526) and a second meshing part (3527) respectively provided on its two opposite end faces. The first side gear (3521) has a first mating part (3524) provided on its end face facing the movable gear (3523). The second side gear (3522) has a second mating part (3525) provided on its end face facing the movable gear (3523). When the drive motor (32) rotates in the first direction, the movable gear (3523) rotates and moves along the axis toward the first side gear (3521) until the first meshing part (3526) and the first mating part (3524) engage so that the movable gear (3523) can drive the first side gear (3521) to rotate together; When the drive motor (32) rotates in the second direction, the movable gear (3523) rotates and moves along the axis toward the second side gear (3522) until the second meshing part (3527) and the second mating part (3525) engage so that the movable gear (3523) can drive the second side gear (3522) to rotate together.

5. The drive pump structure as described in claim 4, characterized in that, The first meshing part (3526) includes at least one first ramp tooth (35261), and the first mating part (3524) includes at least one first mating tooth (35241). The first mating tooth (35241) engages with the first ramp tooth (35261) to cause the movable gear (3523) to drive the first side gear (3521) to rotate. The second meshing part (3527) includes at least one second ramp tooth (35271), and the second mating part (3525) includes at least one second mating tooth (35251). The second mating tooth (35251) engages with the second ramp tooth (35271) to drive the second side gear (3522) to rotate.

6. The drive pump structure as described in claim 5, characterized in that, Along the circumferential direction of the movable gear (3523), one end of the first helical tooth (35261) is the first contact end face (35262) ​​of the helical tooth. From the first contact end face (35262) ​​of the helical tooth to the direction away from the first contact end face (35262), the thickness of the first helical tooth (35261) along the axial direction of the movable gear (3523) gradually decreases. Along the circumferential direction of the movable gear (3523), one end of the second helical tooth (35271) is the second contact end face (35272) of the helical tooth. From the second contact end face (35272) of the helical tooth to the direction away from the second contact end face (35272), the thickness of the second helical tooth (35271) along the axial direction of the movable gear (3523) gradually decreases. The direction from the first contact end face (35262) ​​of the helical tooth to the direction away from the first contact end face (35262) ​​of the helical tooth is opposite to the direction from the second contact end face (35272) of the helical tooth to the direction away from the second contact end face (35272).

7. The drive pump structure as described in claim 5, characterized in that, The first engagement portion (3526) includes a plurality of first chamfer teeth (35261), which are spaced apart along the circumferential direction of the movable gear (3523); and / or, the second engagement portion (3527) includes a plurality of second chamfer teeth (35271), which are spaced apart along the circumferential direction of the movable gear (3523).

8. The drive pump structure as described in claim 4, characterized in that, The diameter of the movable gear (3523) is smaller than the diameter of the first side gear (3521). A first groove (35211) is formed on the end face of the first side gear (3521) facing the movable gear (3523). The first mating part (3524) is disposed on the bottom surface of the groove (35211). When the first meshing part (3526) is connected to the first mating part (3524), the movable gear (3523) extends into the first groove (35211); and / or, The diameter of the movable gear (3523) is smaller than the diameter of the second side gear (3522). A second groove (35221) is formed on the end face of the second side gear (3522) facing the movable gear (3523). The second mating part (3525) is disposed on the bottom surface of the groove of the second groove (35221). When the second meshing part (3527) is connected to the second mating part (3525), the movable gear (3523) extends into the second groove (35221).

9. The drive pump structure as described in claim 3, characterized in that, The transmission structure (35) includes a second shaft (357), which is fixed on the housing (31). The first side gear (3521), the second side gear (3522), and the movable gear (3523) are disposed on the second shaft (357). The first side gear (3521) and the second side gear (3522) are both movably connected to the second shaft (357).

10. The drive pump structure as described in claim 3, characterized in that, The transmission structure (35) further includes an intermediate gear (355), at least one of which is used to drive the movable gear (3523) and the motor gear (351).

11. The drive pump structure according to any one of claims 1-10, characterized in that, The housing (31) includes a main housing (311) and a transmission housing (312). The drive motor (32) is fixed on the outer side of the main housing (311). The transmission housing (312) is disposed on one side of the main housing (311) and the two are connected. The transmission structure (35) is disposed inside the transmission housing (312).

12. The drive pump structure as described in claim 11, characterized in that, The main housing (311) includes a main cylinder part (3111), a water inlet pipe part (3112), a first impeller mounting part (3113), and a second impeller mounting part (3114), wherein the water inlet pipe part (3112), the first impeller mounting part (3113), and the second impeller mounting part (3114) are disposed on the circumferential side of the main cylinder part (3111); The first inlet (3115) is formed on the inlet pipe section (3112), the first impeller (33) and the second impeller (34) are respectively installed in the first impeller mounting section (3113) and the second impeller mounting section (3114), and the first outlet (3116) and the second outlet (3117) are respectively formed on the first impeller mounting section (3113) and the second impeller mounting section (3114).

13. The drive pump structure as described in claim 12, characterized in that, The drive pump structure (30) also includes a filter element device (36), which is inserted into the main cylinder part (3111) from one end and is used to filter water entering the main cylinder part (3111) from the first water inlet (3115).

14. The drive pump structure according to any one of claims 1-10, characterized in that, The drive pump structure also includes an emergency drain pipe (37), which is connected to the housing (31) and is connected to the first inlet (3115).

15. A garment processing device, characterized in that, The drive pump structure (30) includes any one of claims 1-14.

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