CN217772249U - Multi-waterway transposition valve and dish-washing machine - Google Patents

Abstract

The utility model provides a multi-water-path transposition valve and a dish washing machine, wherein the multi-water-path transposition valve comprises a piston cylinder; the at least two water outlets are formed in the side wall of the piston cylinder and penetrate through the inner cavity of the piston cylinder; the reversing pipe is embedded in the inner cavity of the piston cylinder, and at least part of the outer wall of the reversing pipe is in sliding fit with the inner wall of the piston cylinder; the water guide port is formed in the outer wall, in sliding fit with the inner wall of the piston cylinder, of the reversing pipe and communicated to the inner cavity of the reversing pipe; and the driving assembly is used for driving the reversing pipe to slide in the inner cavity of the piston cylinder so that the water guide port is communicated with at least one water discharge port. The utility model discloses a drive assembly drive switching-over pipe is at the motion of piston barrel inner chamber for the water guide mouth can be as required with different outlet intercommunication, thereby discharges the intraductal water of switching-over from this outlet, can realize opening the function in each outlet one by one, and then realizes the switching and the control in many water routes.

Description

Multi-waterway transposition valve and dish-washing machine

Technical Field

The utility model relates to a household electrical appliances technical field especially relates to a many water routes transposition valve and dish washer.

Background

The dish washing machine can automatically clean tableware, is widely applied to places of restaurants, hotels and can effectively reduce the labor intensity of workers. When the conventional dish washing machine inputs clean water into the interior, the spray heads at different positions are required to be respectively conveyed with the clean water, so that one water pump corresponds to one spray head, the space of the dish washing machine is greatly occupied, and the production cost of the dish washing machine is high. And the switching among all the spray heads is difficult to control, so that the use is inconvenient. In addition, if a plurality of spray heads in the dishwasher work simultaneously, the requirement on the water pressure of inlet water is high, and the service environments of different users can not always meet the requirement on the water pressure, so that the application environment of the dishwasher is limited.

SUMMERY OF THE UTILITY MODEL

To the deficiency of the prior art, the utility model aims to provide a multi-water-channel transposition valve, it can realize opening the function of each outlet one by one.

A second object of the present invention is to provide a dishwasher, which is small in size and low in production cost

The embodiment of the utility model discloses a realize through following technical scheme:

a multi-water-path transposition valve comprises a piston cylinder; the at least two water outlets are formed in the side wall of the piston cylinder and penetrate through the inner cavity of the piston cylinder; the reversing pipe is embedded in the inner cavity of the piston cylinder, and at least part of the outer wall of the reversing pipe is in sliding fit with the inner wall of the piston cylinder; the water guide port is formed in the outer wall, in sliding fit with the inner wall of the piston cylinder, of the reversing pipe and communicated to the inner cavity of the reversing pipe; and the driving assembly is used for driving the reversing pipe to slide in the inner cavity of the piston cylinder so that the water guide port is communicated with at least one water discharge port.

According to a preferred embodiment, the outer wall of the reversing pipe is provided with two closed rings, and the outer walls of the closed rings are in sliding fit with the inner wall of the piston cylinder; the water guide opening is formed between the two closed rings.

According to a preferred embodiment, the water outlet is provided with a plurality of filtering holes, and the water outlet is communicated to the inner cavity of the piston cylinder through the filtering holes.

According to a preferred embodiment, a connector is arranged at the water outlet end of the water outlet in a communication manner.

According to a preferred embodiment, the water outlets are evenly spaced along the axial direction of the piston cylinder.

According to a preferred embodiment, the piston cylinder further comprises a frame plate, and the piston cylinder and the drive assembly are both mounted on the frame plate; the drive assembly includes a motor mounted to the frame plate, a guide rod and a lead screw, wherein: the screw rod is rotatably connected with the frame plate and is in transmission connection with the output end of the motor, a driving block is arranged on the screw rod in a threaded manner, and the driving block is fixedly connected to the reversing pipe; the driving block is connected with the guide rod in a sliding manner; the axial direction of the screw rod, the axial direction of the guide rod and the axial direction of the reversing tube are parallel to each other.

According to a preferred embodiment, the frame plate is provided with position sensors corresponding to the water outlets one to one, and the driving block is provided with a sensing block matched with the position sensors.

A dishwasher comprises a shell and the multi-waterway transposition valve, wherein the piston cylinder and the driving assembly are both arranged on the inner wall of the shell; the dishwasher is characterized in that a dishwasher box is arranged in the shell, spray heads which are in one-to-one correspondence with the water outlets penetrate through the side wall of the dishwasher box, and the water outlets are communicated with the spray heads which correspond to the water outlets.

According to a preferred embodiment, a water collecting tank is arranged at the bottom of the dish washing box, and a crushing assembly is arranged in the water collecting tank; the filter assembly comprises a filter cylinder and a filter plate, the filter cylinder is embedded in the water collecting tank and surrounds the crushing assembly, and the filter plate is arranged at the top of the filter cylinder.

According to a preferable embodiment, a drain opening is formed in a side wall of the water collection tank, a drain pipe is communicated with the outside of the drain opening, and the drain pipe penetrates through the side wall of the housing.

The utility model discloses technical scheme has following advantage and beneficial effect at least:

when the utility model is used, the driving component drives the reversing pipe to move in the inner cavity of the piston cylinder, so that the water guide port can be communicated with different water outlets as required, water in the reversing pipe is discharged from the water outlets, the function of opening the water outlets one by one can be realized, and the water pressure of the single water outlet can be ensured by opening the water outlets one by one, thereby ensuring the washing effect of the corresponding sprayer of the water outlet; meanwhile, the size of the water guide port can be changed according to requirements, so that the water discharge port can be correspondingly communicated with two or more adjacent water guide ports, and multi-waterway water supply control is realized; and the multi-water-passage transposition valve is small in size, the control of a plurality of water passages of the water outlet can be realized through one reversing pipe, and the production cost is effectively reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on these drawings without inventive efforts.

Fig. 1 is a schematic perspective view of a dishwasher according to an embodiment of the present invention;

fig. 2 is a schematic view of a first three-dimensional structure of a dishwasher according to an embodiment of the present invention after a surrounding plate is removed;

fig. 3 is a schematic view of a second three-dimensional structure of the dishwasher according to the embodiment of the present invention after the enclosing plate is removed;

FIG. 4 is a schematic top view of a dishwasher according to an embodiment of the present invention;

FIG. 5 isbase:Sub>A schematic cross-sectional view of section A-A of FIG. 4;

FIG. 6 is an enlarged view of a portion of the structure at B in FIG. 5;

fig. 7 is a schematic top view of the dishwasher according to the embodiment of the present invention with the top plate removed;

FIG. 8 is a schematic top view of a dishwasher according to an embodiment of the present invention with a top plate and a dish rack removed;

fig. 9 is a schematic top view of the dishwasher according to the embodiment of the present invention after the top plate, the dish rack and the filter plate are removed;

fig. 10 is a schematic perspective view of a multiple water path transposition valve provided by the present invention;

fig. 11 is a schematic top view of the multiple water path transposition valve provided by the present invention;

FIG. 12 is a schematic cross-sectional view of section C-C of FIG. 11;

fig. 13 is a partially enlarged view of the structure at D in fig. 12.

Icon: 1. a housing; 11. enclosing plates; 12. a housing; 2. a top plate; 3. a dish washing box; 31. a spray head; 311. a first water pipe; 32. a water collection tank; 321. a lower water discharge port; 3211. a first driving member; 3212. an upper drain pipe; 322. an upper water discharge opening; 3221. a lower water discharge pipe; 33. a bowl rack; 34. an extension plate; 4. a multi-waterway transposition valve; 41. a frame plate; 411. a first extension frame; 412. a second extension frame; 413. a third extension frame; 414. a fourth extension frame; 42. a piston cylinder; 421. a water outlet; 422. a connector; 423. a filtration pore; 424. a lower end plate; 43. a position sensor; 44. a motor; 441. a screw rod; 442. a guide bar; 443. a coupling; 444. a speed reducer; 45. a reversing tube; 451. a water guide port; 452. a closed ring; 4521. a seal ring; 46. a drive block; 461. an induction block; 5. a second water pipe; 51. a circulating water pipe; 511. a filter head; 512. a heating module; 52. a second driving member; 61. filtering the plate; 611. a first water filtering hole; 612. a side edge; 62. a filter cartridge; 621. a second water filtering hole; 63. a water storage area; 71. a cutter shaft; 711. a blade; 72. a pulley; 73. a power belt; 8. a solvent cartridge.

Detailed Description

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 10 to 13, a multiple water path transposition valve includes a piston cylinder 42, a reversing pipe 45, a water guide port 451 and a driving assembly, wherein six water discharge ports 421 are formed in a side wall of the piston cylinder 42, and the six water discharge ports 421 penetrate through an inner cavity of the piston cylinder 42; the reversing tube 45 is embedded in the inner cavity of the piston cylinder 42, and at least part of the outer wall of the reversing tube 45 is in sliding fit with the inner wall of the piston cylinder 42; the water guide port 451 is arranged on the outer wall of the reversing pipe 45, which is in sliding fit with the inner wall of the piston cylinder 42, and is communicated with the inner cavity of the reversing pipe 45; the drive assembly is used for driving the reversing tube 45 to slide in the inner cavity of the piston cylinder 42, so that the water guide opening 451 is communicated with one of the six water discharge openings 421.

In this embodiment, the inner cavity of the piston cylinder 42 is cylindrical, and both ends of the piston cylinder 42 are closed. As shown in fig. 12, the reversing tube 45 extends from the lower end of the piston cylinder 42 to the inner cavity of the piston cylinder 42 and is slidably and sealingly connected to a lower end plate 424 of the piston cylinder 42, wherein the lower end plate 424 is used for sealing the inner cavity of the piston cylinder 42 at the lower end of the piston cylinder 42, so that the reversing tube 45 can be guaranteed to move in the piston cylinder 42 and prevent water from overflowing. When the water draining device is used, the driving assembly drives the reversing pipe 45 to move in the inner cavity of the piston cylinder 42, so that the water guiding opening 451 can be communicated with different water draining openings 421 as required, water in the reversing pipe 45 is drained from the water draining openings 421, and the function of opening the water draining openings 421 one by one can be realized.

In this embodiment, the reversing tube 45 is externally connected with a water source.

In other embodiments, the number of the drain openings 421 may be set as desired. It should be noted that, in general, the number of the water outlets 421 is two at minimum, and when the number of the water outlets 421 is one, there is only one water path, and there is no need to change the position.

Further, in order to facilitate the sliding fit between the reversing tube 45 and the inner wall of the piston cylinder 42, that is, to achieve the sliding and ensure the sealing performance, the outer wall of the reversing tube 45 is configured with two sealing rings 452, and the outer wall of the sealing ring 452 is in sliding fit with the inner wall of the piston cylinder 42 (a certain gap is allowed to exist in the actual processing, and the gap facilitates the sliding of the reversing tube 45 in the piston cylinder 42); the water guide opening 451 opens between the two closed rings 452. As shown in fig. 12 and 13, the closing ring 452 is annularly disposed on the outer wall of the reversing tube 45 and is distributed near the upper end of the reversing tube 45. The outer wall of the sealing ring 452 has a profile that matches the profile of the interior cavity of the barrel 42. Further, a sealing ring 4521 is disposed on each of the two sealing rings 452, wherein the sealing ring 4521 further seals the reversing tube 45 and the inner wall of the piston cylinder 42. Specifically, when the water guide port 451 is communicated with any water discharge port 421, the water in the reversing pipe 45 is discharged from the water guide port 451 to the inner cavity of the piston cylinder 42, and then is discharged out of the piston cylinder 42 through the water discharge port 421; when the water guide port 451 is not communicated with any water discharge port 421, the water in the reversing pipe 45 is discharged from the water guide port 451 to the inner cavity of the piston cylinder 42 and is collected between the two closed rings 452 (the two sealing rings 4521), so that the water is prevented from being filled into the whole inner cavity of the piston cylinder 42.

In this embodiment, the water outlet 421 is opened in the outer wall of the piston cylinder 42. A plurality of filtering holes 423 are formed through the bottom of the water discharge port 421 to filter the water discharged from the water guide port 451. The water outlet 421 is connected to the inner cavity of the piston cylinder 42 through a filter hole 423.

In order to facilitate the external connection of the water pipe, a connector 422 is communicated with the water outlet end of the water outlet 421. The connector 422 is integrally formed with the piston cylinder 42.

In this embodiment, six water discharge ports 421 are uniformly spaced in the axial direction of the piston cylinder 42. The area defined between two adjacent water discharge ports 421 on the inner wall of the piston cylinder 42 constitutes a buffer area, and the width of the buffer area is larger than the inner diameter of the water guide port 451. The water outlets 421 are arranged at intervals along the axial direction of the piston cylinder 42, so that the water guide port 451 and the water outlets 421 are correspondingly communicated in the movement process of the reversing pipe 45. The width of the buffer zone is larger than the inner diameter of the water guide opening 451, so that the water guide opening 451 can only communicate with one water discharge opening 421 at the same time.

Of course, in other embodiments, the width of the buffer zone may be smaller than the inner diameter of the water guiding opening 451, so that the water guiding opening 451 can communicate with two or more adjacent water discharge openings 421 at the same time.

The multi-path index valve 4 provided by the embodiment further comprises a frame plate 41, and the piston cylinder 42 and the driving assembly are both mounted on the frame plate 41; the drive assembly comprises a motor 44 mounted to the frame plate 41, a guide rod 442 and a lead screw 441, wherein: the screw rod 441 is rotatably connected with the frame plate 41, the screw rod 441 is in transmission connection with the output end of the motor 44, a driving block 46 is installed on the screw rod 441 in a threaded manner, and the driving block 46 is fixedly connected to the reversing pipe 45; the driving block 46 is slidably connected with the guide rod 442; the axial direction of the screw 441, the axial direction of the guide rod 442, and the axial direction of the reversing tube 45 are parallel to each other.

Specifically, as shown in fig. 10, the piston cylinder 42 is disposed near an upper side of the frame plate 41, and the frame plate 41 is sequentially provided with a first extension frame 411, a second extension frame 412, a third extension frame 413, and a fourth extension frame 414, wherein the first extension frame 411 is disposed at a middle portion of the frame plate 41, and the fourth extension frame 414 is disposed at a lower end of the frame plate 41.

In this embodiment, the screw 441 is rotatably installed between the second extension frame 412 and the third extension frame 413 through a bearing, and a lower end of the screw 441 penetrates through the third extension frame 413. The motor 44 is mounted to a lower side surface of the fourth extension frame 414, while a reducer 444 is further mounted to a lower side surface of the fourth extension frame 414, an output shaft of the motor 44 is connected to an input shaft of the reducer 444, and the input shaft of the reducer 444 penetrates through the fourth extension frame 414 and is connected to a lower end of the lead screw 441 through a coupling 443. The motor 44 drives the screw 441 to rotate around the central axis of the screw 441.

The guide rod 442 is fixedly installed between the first and fourth extension frames 411 and 414. When the multi-water-way switching valve is used, the motor 44 drives the screw rod 441 to rotate, so that the driving block 46 moves along the axial direction of the screw rod 441 under the limiting of the guide rod 442, the reversing pipe 45 is driven to move in the piston cylinder 42 along the axial direction of the reversing pipe, the water guide opening 451 can move among different water discharge openings 421 to communicate with the different water discharge openings 421, and accordingly the multi-water-way switching is achieved one by one.

As shown in fig. 10 and 12, the frame plate 41 is provided with position sensors 43 corresponding to the drain ports 421 one by one, and the driving block 46 is provided with a sensing block 461 fitted to the position sensors 43. Here, six position sensors 43 are provided, corresponding to six water outlets 421, i.e., six water paths, one for one. The six position sensors 43 are uniformly distributed along the axial extension of the screw 441. When the water drainage device is used, in the moving process of the driving block 46, when the sensing block 461 reaches a certain position sensor 43, the water guide opening 451 is communicated with the water drainage opening 421 corresponding to the position sensor, at this time, the position sensor 43 sends a signal to the motor 44, the motor 44 stops rotating, and the water guide opening 451 is continuously communicated with the water drainage opening 421, so that the water drainage duration is ensured. When the time length exceeds a predetermined value, the motor 44 is started and drives the screw 441 to rotate, so that the water guide port 451 moves towards the other water discharge port 421.

As shown in fig. 1 to 9, the present embodiment further provides a dishwasher, which includes a housing 1 and the above-mentioned multi-waterway index valve 4, wherein the piston cylinder 42 and the driving assembly are both mounted on the inner wall of the housing 1 through a frame plate 41; the shell 1 is internally provided with a dish washing box 3, the side wall of the dish washing box 3 is provided with spray heads 31 which are in one-to-one correspondence with the water outlet 421 in a penetrating way, and the water outlet 421 is communicated with the corresponding spray heads 31. In this embodiment, the water outlet 421 is communicated with the nozzle 31 through the first water pipe 311. Specifically, one end of the first water pipe 311 is connected to the nozzle 31, and the other end is connected to the connector 422. When the dishwasher is used, water discharged from the water discharge port 421 flows to the spray head 31 corresponding to the water discharge port 421 through the first water pipe 311, and is sprayed into the dishwasher tank 3 from the spray head 31, so that the tableware in the dishwasher tank 3 is washed.

As shown in fig. 1 to 3, in the present embodiment, the casing 1 includes a surrounding plate 11 and a housing 12, and the surrounding plate 11 is mounted on the housing 12 to form a rectangular parallelepiped casing 1 structure. The top of the dishwashing compartment 3 is integrally provided with an extension plate 34, and the extension plate 34 is fixedly mounted to the top of the housing 1.

Through the many water routes transposition valve 4 of assembly, the cooperation sets up shower nozzle 31 at the case 3 that washes the dishes to arrange shower nozzle 31 in the different positions of case 3 that washes the dishes, can realize washing the multi-angle of tableware in the case 3 that washes the dishes, and the shower nozzle 31 of each position is opened one by one, thereby impactes each other between water column and the water column when avoiding a plurality of shower nozzles 31 to spray water simultaneously and impairs the impact force of water column to the tableware and influence the washing effect.

Further, a water collecting tank 32 is disposed at the bottom of the dishwashing tank 3, and a pulverization unit is disposed in the water collecting tank 32. Specifically, as shown in fig. 6, the crushing assembly includes a cutter shaft 71 penetrating the bottom of the water collecting tank 32, a blade 711 is disposed at the upper end of the cutter shaft 71, a pulley 72 is mounted at the lower end of the cutter shaft 71, and the cutter shaft 71 is driven by a power belt 73 in cooperation with the pulley 72. The dishwasher herein further includes a filter assembly including a filter cartridge 62 and a filter sheet 61, the filter cartridge 62 is embedded in the water collection tank 32 and surrounds the blades 711, and the filter sheet 61 is laid on top of the filter cartridge 62.

Specifically, the upper edge of the filter cartridge 62 extends to the inner wall of the sump 32 with a slight gap therebetween, preventing excessive food waste from entering the sump 32 through the gap. The filter plate 61 is provided with a side edge 612, and the filter plate 61 is erected on the top of the filter cartridge 62 through the side edge 612. In this embodiment, the filter plate 61 is provided with a first water filtering hole 611 in a penetrating manner, the side wall of the filter cartridge 62 is provided with a second water filtering hole 621 in a penetrating manner, the inner diameter of the first water filtering hole 611 is larger than that of the second water filtering hole 621, and an area defined between the outer wall of the filter cartridge 62 and the inner wall of the water collecting tank 32 forms the water storage area 63. In use, the first water filtering holes 611 filter a large volume of food waste, and the middle volume of food waste enters the filter cartridge 62 through the first water filtering holes 611, becomes a small volume by being crushed by the blades 711, and can enter the water storage region 63 through the second water filtering holes 621.

Further, a drain opening is formed in a side wall of the water collection tank 32, a drain pipe is communicated with the outside of the drain opening, and the drain pipe penetrates through the side wall of the casing 1. As shown in fig. 2 and 3, the drain opening includes a lower drain opening 321 and an upper drain opening 322, and the drain pipe includes an upper drain pipe 3212 and a lower drain pipe 3221. The upper drain opening 322 is higher than the lower drain opening 321 and both are connected to the water storage area 63. The upper water outlet 322 is externally connected with an upper water outlet 3212 to discharge the high water level in the water storage area 63, the lower water outlet 321 is externally connected with a lower water outlet 3221, the lower water outlet 3221 is provided with a first driving member 3211, the first driving member 3211 is a water pump to discharge the low water level in the water storage area 63, and the water discharge efficiency of the dishwasher can be improved by the cooperation of the upper water outlet 322 and the lower water outlet 321.

The dishwasher further comprises a circulating water pipe 51, the water inlet end of the circulating water pipe 51 extends to the inner cavity of the dish washing box 3, and the water outlet end of the circulating water pipe 51 is communicated to the reversing pipe 45 through a second driving piece 52 and a second water pipe 5. Further, a filter 511 is provided at the water inlet end of the circulating water pipe 51. When the dishwasher is used, most food residues are crushed and then discharged through the upper water drain pipe 3212 and the lower water drain pipe 3221, and water in the dishwasher tank 3 is filtered through the filter head 511 and then can be conducted to the reversing pipe 45 through the circulating water pipe 51 for recycling. The second drive member 52 is here a water pump.

In this embodiment, the dish washing box 3 is provided with a dish rack 33, and the spray heads 31 are distributed around the dish rack 33. Here, the dish rack 33 is located above the filter plate 61 for placing dishes to be washed.

In this embodiment, one of the spray heads 31 may be replaced with a solvent cartridge 8, and the solvent cartridge 8 communicates with the uppermost drain port 421. The solvent box 8 is filled with a dish washing detergent.

In use, the dishwasher of the present embodiment provides that the top panel 2 is first removed to open the dishwashing compartment 3, and then dishes are placed on the racks 33 and the dishwashing compartment 3 is closed with the top panel 2; then, the spray head 31 sprays clean water to perform a first round of cleaning, the food residues on the tableware can be washed to the bottom of the dish washing box 3 in the process, most of the food residues are filtered by the first water filtering holes 611 and enter the water collecting tank 32 to be crushed by the blade 711, and then the small-volume food residues in the water collecting tank 32 are communicated with water and are discharged together through the upper water drain pipe 3212 and the lower water drain pipe 3221. The valves of the upper water drain pipe 3212 and the lower water drain pipe 3221 are closed next, a proper amount of clean water is injected into the dish washing box 3 through the spray head 31 again, the second driving piece 52 pumps water in the dish washing box 3 to the reversing pipe 45 for recycling, in the process, the heating module 512 arranged between the filter head 511 and the circulating water pipe 51 can heat the water to about 75 ℃, at the moment, the oil stain part on the tableware can be dissolved, and the filter head 511 can filter small-volume food residues suspended in the dish washing box 3 to prevent blockage. In the foregoing process, the movement of the reversing pipe 45 switches the water guide port 451 between the five water discharge ports 421 below. Next, the water guide port 451 is communicated to the uppermost water discharge port 421, so that the detergent in the solvent box 8 enters the dish washing case 3, thereby further cleaning the residual oil stain on the dishes, and after many times of circulation washing, the sewage in the dish washing case 3 is discharged through the upper water discharge pipe 3212 and the lower water discharge pipe 3221. Finally, clean water is sprayed into the dish washing box 3 and heated to 75 ℃ through the heating module 512, and the dish washing box is cleaned for many times and then drained. It should be noted that the final rinsing step can be performed as many times as necessary to ensure the cleaning effect.

In this embodiment, a ventilation fan (not shown) is disposed on a side wall of the dishwasher case 3. After the washing is finished, sewage is discharged, the inside of the dish washing box 3 is in a high-temperature environment at the moment because the water temperature is 75 ℃, and the tableware can be quickly dried by discharging humid air in the dish washing box 3 through the ventilation fan.

The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.

Claims (10)

1. A multiple-circuit index valve, comprising:

a piston cylinder (42);

at least two water outlets (421) which are arranged on the side wall of the piston cylinder (42) and penetrate through the inner cavity of the piston cylinder (42);

the reversing pipe (45) is embedded in the inner cavity of the piston cylinder (42), and at least part of the outer wall of the reversing pipe (45) is in sliding fit with the inner wall of the piston cylinder (42);

the water guide opening (451) is formed in the outer wall, in sliding fit with the inner wall of the piston cylinder (42), of the reversing pipe (45) and communicated with the inner cavity of the reversing pipe (45); and

the driving assembly is used for driving the reversing pipe (45) to slide in the inner cavity of the piston cylinder (42) so that the water guide opening (451) is communicated with at least one water discharge opening (421).

2. The multi-circuit transposition valve according to claim 1, characterized in that the outer wall of the reversing tube (45) is provided with two closing rings (452), the outer wall of the closing ring (452) is in sliding fit with the inner wall of the piston cylinder (42);

the water guide opening (451) is arranged between the two closed rings (452).

3. The multi-water-passage index valve as claimed in claim 1, wherein a plurality of filtering holes (423) are provided at the water outlet (421), and the water outlet (421) is communicated to the inner cavity of the piston cylinder (42) through the filtering holes (423).

4. The multi-channel transposition valve according to claim 1 or 3, characterized in that the water outlet end of the water outlet (421) is communicated with a connector (422).

5. The multiple-circuit index valve as claimed in claim 1, wherein a plurality of the water outlets (421) are uniformly spaced along the axial direction of the piston cylinder (42).

6. The multiple water circuit shift valve according to any one of claims 1, 2, 3 or 5, further comprising a frame plate (41), wherein the piston cylinder (42) and the drive assembly are mounted to the frame plate (41);

the drive assembly comprises a motor (44) mounted to the frame plate (41), a guide rod (442) and a lead screw (441), wherein:

the screw rod (441) is rotatably connected with the frame plate (41), the screw rod (441) is in transmission connection with the output end of a motor (44), a driving block (46) is installed on the screw rod (441) in a threaded manner, and the driving block (46) is fixedly connected to the reversing pipe (45);

the driving block (46) is connected with the guide rod (442) in a sliding way;

the axial direction of the screw shaft (441), the axial direction of the guide rod (442), and the axial direction of the reversing tube (45) are parallel to each other.

7. The multiple water path index valve of claim 6, wherein: the water draining device is characterized in that position sensors (43) which correspond to the water draining openings (421) one by one are arranged on the frame plate (41), and sensing blocks (461) matched with the position sensors (43) are arranged on the driving block (46).

8. A dishwasher, comprising a housing (1) and a multi-way index valve (4) according to any one of claims 1 to 7, the piston cylinder (42) and the drive assembly being mounted to an inner wall of the housing (1);

be provided with in casing (1) and dispose washing dishes case (3), run through on the lateral wall of washing dishes case (3) be provided with shower nozzle (31) of outlet (421) one-to-one, outlet (421) and shower nozzle (31) intercommunication rather than corresponding.

9. The dishwasher of claim 8, characterized in that the bottom of the washing tank (3) is provided with a water collecting tank (32), and a crushing assembly is arranged in the water collecting tank (32);

still include filter assembly, filter assembly includes filter cylinder (62) and filter plate (61), filter cylinder (62) are inlayed and are located in water gathering groove (32) and enclose and locate outside smashing the subassembly, filter plate (61) set up in the top of filter cylinder (62).

10. The dishwasher of claim 9, characterized in that a drain opening is opened on a side wall of the water collection tank (32), a drain pipe is communicated with the outside of the drain opening, and the drain pipe penetrates through the side wall of the housing (1).

Images