CN219814043U - Waterway structure of dish washer - Google Patents

Abstract

The utility model discloses a waterway structure of a dish washer, which aims at providing a waterway structure system of the dish washer, which is favorable for improving the cleanliness of tableware washing and comprises an inner container, wherein the inner container is of a frame-shaped structure with an opening at the front side, an upper spray arm, a lower spray arm, a side spray arm and a small spray arm are arranged in the inner container, a water cup is arranged at the bottom of the inner container, the water cup is detachably connected with the inner container, a water diversion valve is connected to the water cup, the water diversion valve is respectively communicated with the upper spray arm, the lower spray arm, the side spray arm and the small spray arm, the upper spray arm and the lower spray arm are distributed up and down, the small spray arm is positioned at the end part of the lower spray arm and between the lower spray arm and the bottom of the inner container, the upper spray arm, the lower spray arm and the small spray arm are all connected in a rotating way relative to the inner container, one side of the side spray arm is fixedly connected with the side wall of the inner container, the other side of the side spray arm is provided with an inclined plane I, and the inclined plane I is provided with a plurality of spray holes I which are uniformly distributed. The beneficial effects of the utility model are as follows: the aim of improving the cleanliness of tableware cleaning is achieved.

Description

Waterway structure of dish washer

Technical Field

The utility model relates to the technical field related to water paths of dish washers, in particular to a water path structure of a dish washer.

Background

A dishwasher is a device for automatically washing dishes such as bowls, chopsticks, plates, dishes, knives, forks, etc. The full-automatic dish-washing machine on the market can be divided into two types, namely household and commercial, and the household full-automatic dish-washing machine is only suitable for families and mainly comprises a cabinet type, a table type, a water tank integrated type and an integrated type. The commercial dish-washing machine can be divided into cabinet type, cover type, basket type, belt type and ultrasonic 5 type according to the structure. The dish washer is used as an electric appliance for washing dishes in home, and washing, rinsing, etc. of the dishes are required during the washing of the dishes by the dish washer.

The Chinese patent number is CN209220196U, the authorized notice day is 2019, 8 and 9, and a waterway structure of a dish washer is disclosed, and comprises a water cup, external water enters the water cup from a water inlet valve of a water inlet, the water cup is connected with a motor pump, the motor pump is connected to a water distributor assembly, the motor pump is started to pump water in the water cup into the water distributor assembly, and then is respectively guided to an upper spray arm assembly, a middle spray arm assembly and a lower spray arm assembly through branch pipelines on the water distributor assembly to clean tableware. The waste water discharged after cleaning is filtered by the filtering system assembly and is pumped and discharged by the water pump.

According to the disclosure of the above patent, i.e. the corresponding drawings, the spray arm system in the dish washer in the prior art is mostly distributed at the center of the dish washer, and rotates under the action of water pressure to drive the water column to rotate, thereby improving the washing area of the dishes. The design of such structures often presents problems: firstly, for stubborn stains, the water column can not continuously and long-time impact on the stains, so that tableware is not cleaned; 2. because the washing strength is insufficient for the tableware positioned at the edge of the dish washing basket, the tableware is often not washed in place, so that the tableware is not washed cleanly.

Disclosure of Invention

The utility model provides a waterway structure of a dish washer, which is favorable for improving the cleanliness of tableware washing and aims to overcome the defect that tableware is not cleaned in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a dish washer waterway structure, it includes the inner bag, the inner bag is front side open-ended frame structure, be equipped with spray arm, lower spray arm, side spray arm and little spray arm in the inner bag, the bottom of inner bag is equipped with the drinking cup, the drinking cup can be dismantled with the inner bag and be connected, be connected with the shunt valve on the drinking cup, the shunt valve is linked together with spray arm, lower spray arm, side spray arm and little spray arm respectively, upper spray arm and lower spray arm are upper and lower distribution, little spray arm is located the tip of lower spray arm and is located between the bottom of lower spray arm and inner bag, upper spray arm, lower spray arm and little spray arm are all rotated to be connected for the inner bag, one side of side spray arm and the lateral wall fixed connection of inner bag, the opposite side of side spray arm is equipped with inclined plane one, be equipped with a plurality of evenly distributed's orifice on the inclined plane one.

The inner container is internally provided with an upper spray arm, a lower spray arm, a side spray arm and a small spray arm, the bottom of the inner container is provided with a water cup, the water cup is detachably connected with the inner container, the water cup is connected with a water dividing valve, the water dividing valve is respectively communicated with the upper spray arm, the lower spray arm, the side spray arm and the small spray arm, the upper spray arm and the lower spray arm are distributed up and down, the small spray arm is positioned at the end part of the lower spray arm and between the lower spray arm and the bottom of the inner container, the upper spray arm, the lower spray arm and the small spray arm are rotationally connected relative to the inner container, one side of the side spray arm is fixedly connected with the side wall of the inner container, the other side corresponding to the side spray arm is provided with a first inclined plane, and a plurality of evenly distributed spray holes are formed in the first inclined plane. The external water source conveys water into the corresponding spray arm through the control of the water diversion valve to clean tableware; the side spray arm is fixedly connected with the side wall of the liner, so that an operator can place tableware with stubborn stains at a specific position, the side spray arm can intensively and continuously wash the stains for a long time when working, and the aim of improving the cleaning dryness of the tableware is fulfilled; meanwhile, the small spray arm rotates under the action of water pressure, so that the cleaning range of the water column on tableware is conveniently enlarged; meanwhile, the position layout of the small spray arm prevents interference with the lower spray arm, and on the other hand, the washing is convenient to be carried out on the position which is positioned at the edge of the dish washing basket and is difficult to wash by the upper spray arm and the lower spray arm, so that the washing force of tableware is improved.

Preferably, an upper bowl basket and a lower bowl basket are arranged in the inner container, the upper bowl basket and the lower bowl basket are distributed along the height direction of the inner container and are detachably connected with the inner container, the upper spray arm is positioned between the upper bowl basket and the lower bowl basket and corresponds to the bottom of the upper bowl basket, the upper spray arm is positioned at the top of the lower bowl basket, the lower spray arm is positioned at the bottom of the lower bowl basket, and the first spray hole on the inclined surface corresponds to the upper bowl basket or the lower bowl basket. The water column sprayed by the upper spray arm can wash tableware in the upper bowl basket, and the upper spray arm rotates under the action of water pressure, so that the contact range of the water column and the tableware in the upper bowl basket can be increased, and the cleaning force of the tableware is improved; the water column sprayed by the lower spray arm washes tableware in the lower bowl basket, and the lower spray arm rotates under the action of water pressure, so that the contact range of the water column and the tableware in the lower bowl basket can be increased, and the cleaning force of the tableware is improved; the side spray arm is provided with the inclined plane I, so that the spray hole I can correspond to a specific position in the upper bowl basket or the lower bowl basket, on one hand, the side spray arm is beneficial to preventing interference with the lower spray arm when being arranged at the bottom edge of the liner, and is beneficial to saving space; on the other hand, the rice and vegetable slag is prevented from accumulating on the surface of the inner container, and even the first spray hole is blocked, so that the inner container is kept clean.

Preferably, a water outlet channel is arranged on one side of the water cup, the water diversion valve is connected to the other side of the water cup, the bottom edge in the inner container gradually sags towards the center of the water cup, a mounting groove is arranged in the center of the bottom of the inner container, the mounting groove is positioned in the inner container, a mounting hole matched with the water cup is formed in the bottom of the mounting groove, a filter corresponding to the water outlet channel and a sealing cover corresponding to the water diversion valve are arranged in the mounting groove, and the filter and the sealing cover are detachably connected with the mounting groove. The bottom edge in the inner container gradually sags towards the center, so that the washed sewage can flow to the bottom center of the inner container, and then is discharged from the water outlet channel through the filtration of the filter.

Preferably, the inner container is internally provided with a U-shaped water channel, the bottom of the U-shaped water channel is connected with the rear side wall of the inner container, one side of the U-shaped water channel is positioned between the upper bowl basket and the lower bowl basket and is in a suspended state, the other side of the U-shaped water channel is positioned at the bottom of the inner container, the upper spray arm is horizontally and rotationally connected with one side of the opening end of the U-shaped water channel, the other side of the U-shaped water channel is connected with the sealing cover, the upper spray arm penetrates through the region formed by the sealing cover and the water cup after passing through the U-shaped water channel and is communicated with the water diversion valve, the sealing cover is fixedly provided with a shaft tube, the shaft tube is positioned on the side face of the U-shaped water channel, the other side of the U-shaped water channel is positioned between the lower spray arm and the sealing cover, the lower spray arm is horizontally and rotationally connected with the sealing cover through the shaft tube and is communicated with the water diversion valve after penetrating through the region formed by the sealing cover and the water cup.

Preferably, a water diversion channel is arranged on one side of the U-shaped water channel, which is positioned on the side surface of the U-shaped water channel, one end of the water diversion channel is connected and communicated with the U-shaped water channel, the small spray arm is positioned on the other end of the water diversion channel, the center of the small spray arm is rotationally connected with the water diversion channel, the small spray arm is positioned between the lower spray arm and the sealing cover, the small spray arm sequentially passes through the water diversion channel and the U-shaped water channel and then penetrates through the sealing cover and the water cup to form an area which is communicated with the water diversion valve, and the upper spray arm, the lower spray arm, the small spray arm and the side spray arm are respectively communicated with the water diversion valve to form channels which are mutually independent. The sealing cover and the water cup are respectively provided with a pipeline communicated with the upper spray arm and the lower spray arm, and each spray arm is communicated with the water diversion valve through a corresponding pipeline, so that the water diversion valve is beneficial to controlling the opening and closing of each pipeline to realize the working state of each spray arm; the upper spray arm, the lower spray arm, the small spray arm and the side spray arm are mutually independent in a channel formed by communicating the upper spray arm, the lower spray arm, the small spray arm and the side spray arm with the water diversion valve respectively, so that the water diversion valve can conveniently control the opening and closing of each pipeline to realize the working state of each spray arm.

Preferably, the edge of the small spray arm is provided with a plurality of uniformly distributed support blocks to form a star-shaped structure, one end of each support block is fixedly connected with the edge of the small spray arm, the other end of each support block is provided with a second spray hole, the second spray hole is communicated with the inside of the small spray arm through the inside of the support block, one side edge of each support block is provided with an inclined edge, the second spray hole is positioned at the joint of the edge and the top of the support block, the water distribution channel is positioned at the bottom of the support block, the second spray hole is circumferentially provided with a guide wall, one end of the guide wall is fixedly connected with the top of the support block, and the other end of the guide wall is fixedly connected with the edge after forming an oblique surface. The second spray hole is positioned at the end part of the support block, so that the flushing range of the water column is enlarged when the small spray arm rotates under the action of water pressure; the blade edge is beneficial to reducing noise when the small spray arm rotates, and meanwhile, the design of the guide wall enables the water column sprayed from the spray hole II to be more stable; the other end of the guide wall forms a chamfer surface, so that a water column at the injection position in the second spray hole is sprayed obliquely upwards, when the small spray arm is favorable for rotating, the water column can be reversely straightened under the action of inertia, thereby being favorable for improving the impact height of the water column, enabling the water column to be in full contact with tableware, and improving the cleaning strength of the tableware.

The beneficial effects of the utility model are as follows: the operator places the tableware with stubborn stains at a specific position, and the side spray arm can intensively and continuously wash the stains for a long time when in work, so that the aim of improving the cleaning dryness of the tableware is fulfilled; the side spray arm is provided with the inclined plane I, so that the spray hole I can correspond to a specific position in the lower bowl basket, on one hand, the side spray arm can be arranged at the bottom edge of the liner, interference between the side spray arm and the lower spray arm is prevented, and space is saved; on the other hand, the rice and vegetable residues are prevented from accumulating on the surface of the inner container, and even the first spray hole is blocked, so that the inner container is kept clean; the small spray arm rotates under the action of water pressure, so that the cleaning range of the water column to tableware is enlarged conveniently; meanwhile, the position layout of the small spray arm avoids interference with the lower spray arm, and is convenient for flushing the position which is positioned at the edge of the dish washing basket and is difficult to flush by the upper spray arm and the lower spray arm, so that the cleaning force of tableware is improved; the second spray hole is positioned at the end part of the support block, so that the flushing range of the water column is enlarged when the small spray arm rotates under the action of water pressure; the blade edge is beneficial to reducing noise when the small spray arm rotates, and meanwhile, the design of the guide wall enables the water column sprayed from the spray hole II to be more stable; the other end of the guide wall forms a chamfer surface, so that a water column at the injection position in the second spray hole is sprayed obliquely upwards, when the small spray arm is favorable for rotating, the water column can be reversely straightened under the action of inertia, thereby being favorable for improving the impact height of the water column, enabling the water column to be in full contact with tableware, and improving the cleaning strength of the tableware.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an exploded view of FIG. 1;

fig. 3, 4 and 5 are schematic structural views of the side spray arm at the bottom edge of the liner;

FIGS. 6, 7 and 8 are schematic views of the side spray arm positioned between the upper and lower bowl baskets;

FIG. 9 is a schematic view of waterway connection of each spray arm;

fig. 10 is a schematic view of the structure of the small spray arm.

In the figure: 1. the water distributor comprises a liner, an upper spray arm, a lower spray arm, a side spray arm, a water cup, a water diversion valve, an upper bowl basket, a lower bowl basket, an inclined plane I, a spray hole 20, a water outlet channel, a mounting groove, a mounting hole 22, a filter 23, a sealing cover 24, a U-shaped water channel 25, a shaft tube 26, a water diversion channel 27, a small spray arm 28, a branch block 29, a spray hole II, a cutting edge 31 and a guide wall 32.

Description of the embodiments

The utility model is further described below with reference to the drawings and detailed description.

In the embodiment described in fig. 1 and 2, a waterway structure of a dish washer includes an inner container 1, the inner container 1 is a frame structure with an opening at a front side, an upper spray arm 2, a lower spray arm 3, a side spray arm 4 and a small spray arm 28 are arranged in the inner container 1, a water cup 5 is arranged at the bottom of the inner container 1, the water cup 5 is detachably connected with the inner container 1, a water diversion valve 6 is connected to the water cup 5, the water diversion valve 6 is respectively communicated with the upper spray arm 2, the lower spray arm 3, the side spray arm 4 and the small spray arm 28, the upper spray arm 2 and the lower spray arm 3 are distributed up and down, the small spray arm 28 is positioned at the end part of the lower spray arm 3 and between the lower spray arm 3 and the bottom of the inner container 1, the upper spray arm 2, the lower spray arm 3 and the small spray arm 28 are all connected in a rotating manner relative to the inner container 1, as shown in fig. 3-8, one side of the side spray arm 4 is fixedly connected with the side wall of the inner container 1, the other side spray arm 4 is correspondingly provided with an inclined plane 9, and a plurality of evenly distributed spray holes 10 are arranged on the inclined plane 9.

As shown in fig. 1 and 2, an upper bowl basket 7 and a lower bowl basket 8 are arranged in the liner 1, the upper bowl basket 7 and the lower bowl basket 8 are distributed along the height direction of the liner 1 and are detachably connected with the liner 1, an upper spray arm 2 is positioned between the upper bowl basket 7 and the lower bowl basket 8 and corresponds to the bottom of the upper bowl basket 7, the upper spray arm 2 is positioned at the top of the lower bowl basket 8, a lower spray arm 3 is positioned at the bottom of the lower bowl basket 8, and a first spray hole 10 on the first inclined plane 9 corresponds to the upper bowl basket 7 or the lower bowl basket 8.

As shown in fig. 2 and 9, one side of the water cup 5 is provided with a water outlet channel 20, the water diversion valve 6 is connected to the other side of the water cup 5, the bottom edge in the liner 1 gradually sags towards the center, the bottom center of the liner 1 is provided with a mounting groove 21, the mounting groove 21 is positioned in the liner 1, the bottom of the mounting groove 21 is provided with a mounting hole 22 matched with the water cup 5, the mounting groove 21 is internally provided with a filter 23 corresponding to the water outlet channel 20 and a sealing cover 24 corresponding to the water diversion valve 6, and the filter 23 and the sealing cover 24 are detachably connected with the mounting groove 21.

As shown in fig. 2, a U-shaped water channel 25 is arranged in the liner 1, the bottom of the U-shaped water channel 25 is connected with the rear side wall of the liner 1, one side of the U-shaped water channel 25 is positioned between the upper bowl basket 7 and the lower bowl basket 8 and is in a suspended state, the other side of the U-shaped water channel 25 is positioned at the bottom of the liner 1, the upper spray arm 2 is horizontally and rotatably connected with one side of the opening end of the U-shaped water channel 25, the other side of the U-shaped water channel 25 is connected with a sealing cover 24, the upper spray arm 2 penetrates through an area formed by the sealing cover 24 and a water cup 5 after passing through the U-shaped water channel 25 and is communicated with the water diversion valve 6, a shaft tube 26 is fixed on the sealing cover 24, the shaft tube 26 is positioned on the side surface of the U-shaped water channel 25, the other side of the U-shaped water channel 25 is positioned between the lower spray arm 3 and the sealing cover 24, the lower spray arm 3 is horizontally and rotatably connected with the sealing cover 24 through the shaft tube 26, and the lower spray arm 3 penetrates through an area formed by the sealing cover 24 and the water cup 5 and is communicated with the water diversion valve 6.

As shown in fig. 2 and 9, a water diversion channel 27 is arranged on one side of the bottom of the liner 1, the water diversion channel 27 is arranged on the side surface of the U-shaped water diversion channel 25, one end of the water diversion channel 27 is connected and communicated with the U-shaped water diversion channel 25, a small spray arm 28 is arranged on the other end of the water diversion channel 27, the center of the small spray arm 28 is rotationally connected with the water diversion channel 27, the small spray arm 28 is arranged between the lower spray arm 3 and the sealing cover 24, the small spray arm 28 sequentially passes through the water diversion channel 27 and the U-shaped water diversion channel 25 and then penetrates through an area formed by the sealing cover 24 and the water cup 5 to be communicated with the water diversion valve 6, and the channels formed by respectively communicating the upper spray arm 2, the lower spray arm 3, the small spray arm 28 and the side spray arm 4 with the water diversion valve 6 are mutually independent.

As shown in fig. 10, the edge of the small spray arm 28 is provided with a plurality of uniformly distributed supporting blocks 29 to form a star-shaped structure, one end of each supporting block 29 is fixedly connected with the edge of the small spray arm 28, the other end of each supporting block 29 is provided with a second spray hole 30, the second spray hole 30 is communicated with the interior of the small spray arm 28 through the interior of the supporting block 29, one side edge of each supporting block 29 is provided with an inclined edge 31, the second spray hole 30 is positioned at the joint of the edge 31 and the top of the supporting block 29, the water distribution channel 27 is positioned at the bottom of the supporting block 29, the second spray hole 30 is circumferentially provided with a guide wall 32, one end of the guide wall 32 is fixedly connected with the top of the supporting block 29, and the other end of the guide wall 32 forms an inclined plane and is fixedly connected with the edge 31.

The external water source conveys water into the corresponding spray arm through the control of the water diversion valve 6 to clean tableware; the side spray arm 4 is fixedly connected with the side wall of the liner 1, so that an operator can place tableware with stubborn stains at a specific position, and the side spray arm 4 can intensively and continuously wash the stains for a long time during working, thereby achieving the purpose of improving the cleaning dryness of the tableware. Specifically, as shown in fig. 3 to 8, a plurality of side spraying arms 4 may be provided, and may be respectively provided at the rear side, the left side, the right side, etc. of the liner 1, or may be provided to clean tableware in the upper bowl basket 7 and the lower bowl basket 8 at the same time, and may be flexibly arranged according to actual needs.

The side spray arm 4 is provided with the inclined plane I9, so that the spray hole I10 can correspond to a specific position in the lower bowl basket 8, on one hand, the side spray arm 4 can be arranged at the bottom edge of the liner 1, interference with the lower spray arm 3 is prevented, and space is saved; on the other hand, the rice and vegetable residues are prevented from accumulating on the surface of the inner container, and even the first spray hole 10 is blocked, so that the inner container 1 is kept clean.

Meanwhile, the water column sprayed by the upper spray arm 2 can wash tableware in the upper bowl basket 7, the upper spray arm 2 rotates under the action of water pressure, and the contact range of the water column and the tableware in the upper bowl basket 7 can be increased, so that the cleaning force of the tableware is improved; the water column sprayed by the lower spray arm 3 washes tableware in the lower bowl basket 8, and the lower spray arm 3 rotates under the action of water pressure, so that the contact range of the water column and the tableware in the lower bowl basket 8 can be improved, and the cleaning force of the tableware is improved.

The small spray arm 28 rotates under the action of water pressure, and sprays water columns through the second spray holes 30 on the support blocks 29, so that the positions which are positioned at the edge of the dish washing basket and are difficult to rinse by the upper spray arm 2 and the lower spray arm 3 are rinsed, and the washing force of tableware is improved; the upper spray arm 2, the lower spray arm 3, the small spray arm 28 and the side spray arm 4 are mutually independent in channels formed by communicating the water diversion valves 6, so that the water diversion valves 6 can conveniently control the opening and closing of all pipelines to realize the working state of all spray arms.

Since the bottom edge inside the inner container 1 gradually sags toward the center thereof, the washed sewage flows to the bottom center of the inner container 1 and is then discharged from the water outlet passage 20 by filtration of the filter 23.

Claims (6)

1. The utility model provides a dish washer waterway structure, characterized by, includes inner bag (1), inner bag (1) is front side open-ended frame structure, be equipped with spray arm (2), lower spray arm (3), side spray arm (4) and little spray arm (28) in inner bag (1), the bottom of inner bag (1) is equipped with drinking cup (5), drinking cup (5) can dismantle with inner bag (1) and be connected, be connected with shunt valve (6) on drinking cup (5), shunt valve (6) are linked together with last spray arm (2), lower spray arm (3), side spray arm (4) and little spray arm (28) respectively, upward spray arm (2) and lower spray arm (3) are the upper and lower distribution, little spray arm (28) are located the tip of lower spray arm (3) and are located between the bottom of lower spray arm (3) and inner bag (1), upward spray arm (2), lower spray arm (3) and little spray arm (28) are to inner bag (1) rotation, one side spray arm (4) are equipped with a plurality of opposite side slope (9) and one side of evenly distributed, one side spray arm (4) are equipped with a plurality of corresponding inclined plane (9).

2. The waterway structure of a dish washer according to claim 1, characterized in that an upper bowl basket (7) and a lower bowl basket (8) are arranged in the inner container (1), the upper bowl basket (7) and the lower bowl basket (8) are distributed along the height direction of the inner container (1) and are detachably connected with the inner container (1), the upper spray arm (2) is positioned between the upper bowl basket (7) and the lower bowl basket (8) and corresponds to the bottom of the upper bowl basket (7), the upper spray arm (2) is positioned at the top of the lower bowl basket (8), the lower spray arm (3) is positioned at the bottom of the lower bowl basket (8), and the spray hole I (10) on the inclined plane I (9) corresponds to the upper bowl basket (7) or the lower bowl basket (8).

3. The waterway structure of a dish washer according to claim 2, characterized in that one side of the water cup (5) is provided with a water outlet channel (20), the water diversion valve (6) is connected to the other side of the water cup (5), the bottom edge in the inner container (1) gradually sags towards the center, the bottom center of the inner container (1) is provided with a mounting groove (21), the mounting groove (21) is positioned in the inner container (1), the bottom of the mounting groove (21) is provided with a mounting hole (22) matched with the water cup (5), a filter (23) corresponding to the water outlet channel (20) and a sealing cover (24) corresponding to the water diversion valve (6) are arranged in the mounting groove (21), and the filter (23) and the sealing cover (24) are both detachably connected with the mounting groove (21).

4. The waterway structure of a dish washer according to claim 3, characterized in that a U-shaped waterway (25) is arranged in the inner container (1), the bottom of the U-shaped waterway (25) is connected with the rear side wall of the inner container (1), one side of the U-shaped waterway (25) is positioned between the upper bowl basket (7) and the lower bowl basket (8) and is in a suspended state, the other side of the U-shaped waterway (25) is positioned at the bottom of the inner container (1), the upper spray arm (2) is horizontally and rotatably connected with one side of the opening end of the U-shaped waterway (25), the other side of the U-shaped waterway (25) is connected with a sealing cover (24), the upper spray arm (2) is communicated with a water diversion valve (6) through an area formed by penetrating through the sealing cover (24) and a water cup (5) behind the U-shaped waterway (25), an axle tube (26) is fixed on the sealing cover (24), the other side of the U-shaped waterway (25) is positioned between the lower spray arm (3) and the sealing cover (24), and the lower spray arm (24) is horizontally connected with the sealing cover (24) through the axle tube (24), and the water diversion valve (6) in a penetrating way through the sealing cover (24).

5. The waterway structure of a dish washer according to claim 4, wherein a water diversion channel (27) is arranged on one side of the bottom of the inner container (1), the water diversion channel (27) is arranged on the side surface of the U-shaped water diversion channel (25), one end of the water diversion channel (27) is connected and communicated with the U-shaped water diversion channel (25), the small spray arm (28) is arranged on the other end of the water diversion channel (27), the center of the small spray arm (28) is rotationally connected with the water diversion channel (27), the small spray arm (28) is arranged between the lower spray arm (3) and the sealing cover (24), the small spray arm (28) sequentially passes through the water diversion channel (27), the U-shaped water diversion channel (25) and then penetrates through an area formed by the sealing cover (24) and the water cup (5) to be communicated with the water diversion valve (6), and the upper spray arm (2), the lower spray arm (3), the small spray arm (28) and the side spray arm (4) are respectively communicated with the water diversion valve (6) to form channels which are mutually independent.

6. The waterway structure of a dish washer according to claim 5, characterized in that the edge of the small spray arm (28) is provided with a plurality of evenly distributed support blocks (29) to form a star-shaped structure, one end of the support block (29) is fixedly connected with the edge of the small spray arm (28), the other end of the support block (29) is provided with a spray hole II (30), the spray hole II (30) is communicated with the interior of the small spray arm (28) through the interior of the support block (29), one side edge of the support block (29) is provided with an inclined blade edge (31), the spray hole II (30) is positioned at the joint of the blade edge (31) and the top of the support block (29), the water diversion channel (27) is positioned at the bottom of the support block (29), the spray hole II (30) is provided with a guide wall (32) along the circumference thereof, one end of the guide wall (32) is fixedly connected with the top of the support block (29), and the other end of the guide wall (32) forms a bevel to be fixedly connected with the blade edge (31).