CN214945060U - Water flow system and cleaning machine with same - Google Patents

Abstract

The utility model relates to a rivers system and use cleaning machine that has this rivers system, including spray set and be used for the pump that supplies water for this spray set, spray set includes bottom spray arm, middle part spray arm, top spray arm, and the pump includes impeller, lower impeller, goes up casing, lower casing. The upper shell is provided with a first containing cavity for installing the upper part of the first blade, the upper part of the lower shell is provided with a second containing cavity for installing the lower part of the first blade, the side wall of the lower shell is provided with a first water inlet for supplying water into the second containing cavity, the lower part of the lower shell is provided with a third containing cavity for installing the lower impeller, and the side wall and/or the bottom wall of the lower shell are/is provided with a second water inlet and a water outlet. The utility model utilizes an open type double-pump system to supply water, and because the power of two paths of water flows is independently supplied by corresponding pumps, the lift and the water flow of each path of water flow are improved, which is beneficial to improving the cleaning effect; the utility model discloses a two pump system dismouting, washing of being convenient for avoid bacterial growing.

Description

Water flow system and cleaning machine with same

Technical Field

The utility model relates to a dish washer technical field specifically indicates a water flow system and uses cleaning machine that has this water flow system.

Background

For table type and cabinet type dish washing machines, because the washing space is large, in order to achieve better washing effect, a top spray arm, a middle spray arm and a lower spray arm are generally designed; when the dishwasher is in operation, the washing pump conveys water to the top, the middle and the lower spray arms through pipelines, the water is sprayed out of the top, the middle spray arms and the lower spray arms and washes tableware and then falls back into a water cup at the bottom of the dishwasher, and the washing pump conveys the fallen water to the top, the middle and the lower spray arms again to complete a cycle.

For example, the chinese utility model patent application publication No. CN106859563A, energy saving dishwasher (application No. CN201611232345.5), discloses a structure including a chamber for accommodating tableware and providing a cleaning space, a spray system for spraying water to clean the tableware, and a pump body for pumping water and supplying water to the spray system; the spraying system is arranged in the cavity; the water pumping end of the pump body is communicated with the cavity, and the water supply end is communicated with the spraying system; the spraying system comprises an inner water pipe and more than two sets of spraying devices, and the more than two sets of spraying devices are respectively arranged on the inner water pipe; the water supply end of the pump body is connected with a water distribution device, the water distribution device is provided with more than two water outlets corresponding to more than two sets of spraying devices, and the spraying devices are communicated with the corresponding water outlets; when the spraying device works, the water distribution device conducts more than one water outlet according to the instruction, so that more than one set of spraying device can perform cleaning work.

In the above-mentioned current dish washer that can carry out bottom and spray, top sprays, a pump for supplying water for the spraying system generally adopts closed structure, is about to locate the spiral case of washing pump in the box below, is provided with ability pivoted impeller in the spiral case, and the water inlet of washing pump spiral case is linked together bottom the washing chamber, and the delivery port of spiral case is connected with the water diversion device, and this water diversion device divides into the first branch road of supplying water to bottom spray arm and the second branch road of supplying water to top spray arm with rivers. Because the water pressure of the top spraying water and the water pressure of the bottom spraying water are independently supplied by the washing pump, the lift, the flow and the impact force of the water flow on each branch are greatly reduced after the water flow is divided, and the cleaning effect is influenced; meanwhile, the closed volute fixed below the box body is difficult to disassemble, assemble and clean, bacteria can be bred due to residue accumulation after long-time use, washing effect is influenced, and poor experience can be brought to users.

In the current water flow system of the dish washer, the bottom spray arm is generally located at the central part and above the filter screen plate, the residue collection basket is located at the side of the bottom spray arm, the residue collection returns by the self weight of the water flow during residue collection, and the residue is firstly filtered by the filter screen plate and then discharged after being collected by the residue collection basket. In the drainage process, fine residues are easy to leave on the filter screen plate due to the fact that the flow velocity of water flow on the filter screen plate is too high, the residue collection effect of the residue collection basket is poor, the flow velocity of water flow passing through the residue collection basket is slow due to the fact that the flow velocity of water flow on the filter screen plate is too high, and the smoothness of residue discharge is affected; meanwhile, fine pollutants are easily adhered to the side wall of the slag collecting basket and are difficult to clean.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem to provide a can provide power respectively for two way washing water and improve lift and discharge and then improve the water flow system of cleaning performance to the current situation of prior art.

The utility model discloses the second technical problem that will solve is to prior art's current situation, thereby provides one kind and adopts open spiral case to be convenient for carry out dismouting and abluent rivers system.

The utility model aims to solve the third technical problem to prior art's current situation, provide a should have above-mentioned water flow system's cleaning machine, this cleaning machine can improve row sediment smoothness nature and sediment basket cleanness.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a rivers system, includes spray set and is used for the pump for this spray set water supply which characterized in that: the spraying device comprises:

the bottom spraying arm is used for spraying water flow upwards;

the middle spraying arm is arranged above the side of the bottom spraying arm and is used for spraying water flow to the upper area of the bottom spraying arm;

the top spraying arm is arranged above the middle spraying arm and is used for spraying water flow to the upper part or the side area of the top spraying arm;

the pump includes:

the upper impeller is provided with a first shaft positioned in the center and first blades which are distributed on the circumferential surface of the first shaft at intervals along the circumferential direction and extend along the axial direction;

the lower impeller is provided with a second shaft positioned in the center and second blades which are distributed on the circumferential surface of the second shaft at intervals along the circumferential direction;

the upper shell is provided with a first accommodating cavity for installing the upper part of the first blade, the top wall and/or the side wall of the upper shell are/is provided with spray holes communicated with the first accommodating cavity in a fluid mode, and the upper shell forms the bottom spray arm; and

the lower casing, connect in the below of last casing, the upper portion of casing has the second holding chamber that is used for installing first blade lower part down, it has the first water inlet that supplies water to get into in the second holding chamber to open on the lateral wall of casing down, the lower part of casing has the third holding chamber that is used for installing impeller down, it has the second water inlet that supplies water to get into in the third holding chamber and the delivery port of export from the third holding chamber to open on the lateral wall and/or the diapire of casing down.

In the above scheme, the middle part of the lower shell is provided with a partition board for dividing the second accommodating cavity and the third accommodating cavity into relatively independent cavities. The second containing cavity and the third containing cavity are relatively independent, so that water supply for lower spraying through the upper impeller and water supply for top and/or middle spraying through the lower impeller are facilitated, mutual fluid disturbance is reduced, capacity loss is reduced, and water flow lift, water flow and jet force are improved.

Preferably, the third accommodating cavity is located below the partition plate and is approximately disc-shaped, the second water inlet is formed in the bottom wall of the lower shell, and the water outlet is formed in the side wall of the lower shell and is tangentially connected with the third accommodating cavity through a guide pipeline. The structure is beneficial to reducing the capacity loss of the third accommodating cavity for outputting water flow.

Preferably, the second accommodating cavity is located above the partition plate and extends vertically, and the inner diameter of the second accommodating cavity is smaller than that of the third accommodating cavity and is matched with the lower part of the first blade. The structure is beneficial to reducing the capacity loss of water flow when the water flow passes through the second accommodating cavity.

Preferably, the top wall of the partition board is provided with a n-shaped coaming board extending transversely, the coaming board and the partition board jointly enclose a water inlet channel communicated with the second accommodating cavity, and an outer port of the water inlet channel forms the first water inlet. By adopting the structure, the water inlet channel is convenient to produce and manufacture, and is arranged at the bottom of the second accommodating cavity, so that the water flow disturbance is favorably reduced, and the capacity loss of the water flow flowing through the second accommodating cavity is further reduced.

For the convenience of assembly, the outer circumferential wall of the upper portion of the lower housing is provided with a support plate extending in a radial direction, and the upper housing is restrained on the support plate. The upper wall surface of the supporting plate is provided with a clamping ring, and the bottom wall of the upper shell is provided with a clamping pin which can rotatably penetrate through the clamping ring to be arranged and is clamped and limited with the bottom wall of the clamping ring, so that the upper shell is detachably connected to the top of the lower shell.

Preferably, a third water inlet arranged corresponding to the first accommodating cavity is formed in the bottom wall of the upper shell, and the third water inlet is butted with an upper port of the second accommodating cavity. The diameter of the third water inlet is larger than the inner diameter of the second accommodating cavity, and the inner diameter of the upper part of the lower shell close to the upper end of the second accommodating cavity is gradually enlarged to form a guide part which can be smoothly transited and connected with the inner bottom wall of the first accommodating cavity. The structure is beneficial to reducing the capacity loss of water flow in the process of entering the first accommodating cavity from the second accommodating cavity.

Preferably, the outer edge of the guide portion is arranged close to the inner edge of the third water inlet, a blocking piece which extends along the radial direction and is supported on the bottom wall of the upper shell is arranged on the outer peripheral wall of the guide portion, and the outer edge of the blocking piece is arranged corresponding to the inner edge of the blocking foot. The structure is favorable for improving the sealing performance of the third water inlet, and avoids water leakage from influencing the bottom spraying lift.

In the utility model, the upper part of the first blade is a centrifugal blade, and the lower part is an axial flow blade; the second blade is a centrifugal blade.

In each of the above schemes, the dual-pump system further includes a driving member for driving the upper impeller and the lower impeller to rotate, the driving member is disposed below the lower casing, the output shaft is disposed upward, the output shaft penetrates the lower casing from bottom to top and extends into the first accommodating cavity of the upper casing, and the output shaft is connected with the lower impeller and the upper impeller respectively. By adopting the structure, a double-pump system is constructed by adopting one power source, and the water supply condition is more conveniently controlled on the basis of simplifying the whole structure and reducing the production cost.

Preferably, the output shaft is radially limited with the upper impeller and the lower impeller respectively, and a nut capable of preventing the upper impeller from moving along the axial direction of the output shaft is arranged at the upper end of the output shaft. By adopting the structure, the upper shell is convenient to disassemble and assemble, the upper impeller can be taken down after the upper shell is taken down from the clamping ring, and the cavity on the upper part of the upper shell, the upper impeller and the lower shell is cleaned, so that bacteria breeding is avoided, and the cleaning effect is improved.

The utility model provides an use cleaning machine that has above-mentioned rivers system, includes the box and can upwards be the water supply pipe that middle part spray arm and top spray arm carried with the water of bottom half, its characterized in that: the lower shell is restrained on the inner bottom wall of the box body, and the water outlet is connected with the lower end of the water supply pipeline.

Preferably, the water supply pipeline is provided with a first branch pipeline and a second branch pipeline which are relatively independent, the water outlet end of the first branch pipeline is connected with the water inlet end of the middle spraying arm, and the water outlet end of the second branch pipeline is connected with the water inlet end of the top spraying arm. By adopting the structure, the spraying of the lower layer, the middle layer and the top layer is realized, and the cleaning effect is favorably improved.

Preferably, the bottom of the box body is further provided with a shunt valve for controlling whether the first branch pipeline and the second branch pipeline circulate or not, a water inlet of the shunt valve is connected with a water outlet of the lower shell, a first water outlet of the shunt valve is connected with an input end of the first branch pipeline, and a second water outlet of the shunt valve is connected with an input end of the second branch pipeline. The structure is convenient for controlling the use states of the middle-layer spraying and the top-layer spraying according to requirements, for example, the first branch pipeline can be closed, the second branch pipeline can be opened, and only the top-layer spraying is carried out; the first branch pipeline can be opened, the second branch pipeline can be closed, and only middle-layer spraying is carried out, so that more use requirements are met.

Preferably, the middle part of the box body is provided with a partition board which can divide the inner cavity of the box body into an upper cavity and a lower cavity which are relatively independent from each other from top to bottom, the bottom spray arm is positioned at the bottom of the lower cavity, the middle spray arm is positioned at the middle part or the upper part of the lower cavity, and the top spray arm is positioned in the upper cavity. By adopting the structure, the lower cavity or the upper cavity and the lower cavity can be conveniently sprayed and cleaned according to the requirements, so that more requirements of consumers are met.

Preferably, water supply pipeline presses close to the box inner wall and arranges, the top spray arm includes from water supply pipeline to the first spray arm that the box middle part extended and be located this first spray arm top and be close to the second spray arm that the box inner wall was arranged, first spray arm is located the bottom of cavity and is used for upwards spraying rivers, the second spray arm is located the middle part or the upper portion of cavity and is used for spraying rivers to the region of first spray arm top. The structure is favorable for eliminating the cleaning dead angle of the upper cavity and improving the cleaning effect in the upper cavity.

Preferably, the bottom of the box body is provided with a concave draining area, the top of the draining area is covered with a filter screen plate, the first water inlet and the second water inlet are both positioned below the filter screen plate, the filter screen plate is provided with a slag collecting basket, the bottom of the slag collecting basket is positioned in the draining area and is arranged close to the first water inlet, and the first water inlet is connected with a suction nozzle which extends obliquely downwards and is arranged corresponding to the side wall of the slag collecting basket. This structure is favorable to improving the velocity of water flow of collection sediment basket department to slow down the velocity of water flow of filtering the otter board, avoid tiny residue to accumulate on filtering the otter board, improve the sediment effect of collection, simultaneously, the suction nozzle increase collection sediment basket lateral wall department velocity of water flow can also erode the lateral wall of collection sediment basket, improves the cleaning nature of collection sediment basket.

Compared with the prior art, the utility model has the advantages of: the utility model utilizes an open type double-pump system to supply water, wherein, the second holding cavity, the first holding cavity and the upper impeller positioned at the upper part are used for spraying water supply at the bottom, the third holding cavity and the lower impeller positioned at the lower part are used for spraying water supply at the top and/or the middle part, because the power of two paths of water flows is independently supplied by the corresponding pump, the lift and the water flow of each path of water flow are improved, which is beneficial to improving the cleaning effect; the utility model discloses a dismouting of being convenient for of double pump system will go up the casing and pull down on the casing down, can wash last casing, last impeller and casing down, avoids bacterial growing.

Drawings

Fig. 1 is a schematic structural diagram of a pump according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another angle;

FIG. 3 is a cross-sectional view of a pump according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a lower housing in an embodiment of the present invention;

FIG. 5 is a schematic view of the structure of FIG. 4 from another angle;

fig. 6 is a cross-sectional view of a lower housing in an embodiment of the invention;

FIG. 7 is a schematic structural view of a cleaning machine according to an embodiment of the present invention;

FIG. 8 is a cross-sectional view of a cleaning machine in an embodiment of the present invention;

fig. 9 is a partially enlarged view of fig. 8.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

The water flow system of the present embodiment is mainly used in washing machines for washing dishes, which have a large volume.

As shown in fig. 1 to 9, the water flow system of the present embodiment includes a spraying device a and a pump b for supplying water to the spraying device a.

The spraying device a comprises a bottom spraying arm, a middle spraying arm a1 and a top spraying arm a2, wherein the bottom spraying arm is used for spraying water flow upwards, the middle spraying arm a1 is arranged above the side of the bottom spraying arm and used for spraying water flow to the upper area of the bottom spraying arm, and the top spraying arm a2 is arranged above the middle spraying arm a1 and used for spraying water flow to the upper area or the side area of the top spraying arm a 2.

The pump b includes an upper impeller 1, a lower impeller 2, an upper casing 3, a lower casing 4, and a driving member 5. The upper impeller 1 includes a first shaft 11 located at the center and a plurality of first blades 12 that are circumferentially spaced apart from each other on the circumferential surface of the first shaft 11 and extend in the axial direction, and the upper portions of the first blades 12 are centrifugal blades and the lower portions thereof are axial flow blades. The lower impeller 2 includes a second shaft 21 located at the center and a plurality of second blades 22 circumferentially spaced apart from each other on the circumferential surface of the second shaft 21, and the second blades 22 are centrifugal blades.

The upper casing 3 has a body extending in a length direction, a first receiving cavity 31 for mounting an upper portion of the first blade 12 is formed at a central portion of the body, flow passages communicating with the first receiving cavity 31 are respectively formed at both sides of the body, a spray hole 32 communicating with the flow passages is formed in a top wall of the upper casing 3, and the upper casing 3 constitutes the bottom spray arm.

The lower shell 4 is connected below the upper shell 3, the upper part of the lower shell 4 is provided with a second accommodating cavity 41 for installing the lower part of the first blade 12, and the side wall of the lower shell 4 is provided with a first water inlet 411 for water to enter the second accommodating cavity 41; the lower part of the lower shell 4 is provided with a third containing cavity 42 for installing the lower impeller 2, the bottom wall of the lower shell 4 is provided with a second water inlet 421 for water to enter the third containing cavity 42, and the side wall is provided with a water outlet 422 for water to be output from the third containing cavity 42.

The driving part 5 is a motor, is arranged below the lower shell 4, and the output shaft 51 is arranged upward, and the output shaft 51 penetrates through the lower shell 4 from bottom to top and extends into the first accommodating cavity 31 of the upper shell 3, and is respectively connected with the lower impeller 2 and the upper impeller 1, and is used for driving the upper impeller 1 and the lower impeller 2 to rotate.

Specifically, as shown in fig. 3 and 6, a partition plate 43 for dividing the second accommodating chamber 41 and the third accommodating chamber 42 into relatively independent chambers is disposed in the middle of the lower housing 4. The second accommodating cavity 41 and the third accommodating cavity 42 are relatively independent, so that water supply for lower spraying through the upper impeller 1 and water supply for top and/or middle spraying through the lower impeller 2 are facilitated, mutual fluid disturbance is reduced, capacity loss is reduced, and water flow lift, water flow and spraying force are improved.

The third accommodating cavity 42 is located below the partition plate 43 and is approximately disc-shaped, the second water inlet 421 is arranged at the center of the bottom wall of the lower shell 4, and the water outlet 422 is tangentially connected with the third accommodating cavity 42 through the guide pipeline 423, so that the structure is favorable for reducing the capacity loss of the third accommodating cavity 42 in outputting water flow.

The second receiving cavity 41 is located above the partition 43 and extends vertically, and the inner diameter of the second receiving cavity 41 is smaller than the inner diameter of the third receiving cavity 42 and is adapted to the lower portion of the first blade 12. This configuration is advantageous in reducing the loss of water flow through the second receiving chamber 41.

As shown in fig. 4, 5 and 6, the top wall of the partition 43 is provided with a n-shaped skirt 431 extending transversely, the skirt 431 and the partition 43 together define a water inlet passage 432 communicating with the second receiving chamber 41, and an outer port of the water inlet passage 432 forms the first water inlet 411. By adopting the structure, the production and the manufacture are convenient, and the water inlet channel 432 is arranged at the bottom of the second accommodating cavity 41, so that the disturbance of water flow is reduced, and the capacity loss of the water flow flowing through the second accommodating cavity 42 is further reduced.

For ease of assembly, the outer peripheral wall of the upper portion of the lower case 4 is provided with a support plate 44 extending in the radial direction, and the upper case 3 is restrained on the support plate 44. A clamping ring 441 is arranged on the upper wall surface of the supporting plate 44, and a clamping pin 33 which can be rotatably arranged through the clamping ring 441 and is clamped and limited with the bottom wall of the clamping ring 441 is arranged on the bottom wall of the upper shell 3, so that the upper shell 3 is detachably connected to the top of the lower shell 4.

As shown in fig. 3, a third water inlet 34 is formed on the bottom wall of the upper housing 3 and arranged corresponding to the first accommodating chamber 31, and the third water inlet 34 is butted against the upper port of the second accommodating chamber 41. The diameter of the third water inlet 34 is larger than the inner diameter of the second accommodating chamber 41, and the inner diameter of the upper part of the lower housing 4 near the upper end of the second accommodating chamber 41 is gradually enlarged to form a guide part 412 which can be smoothly transited and connected with the inner bottom wall of the first accommodating chamber 31. This structure is advantageous for reducing the loss of the water flow in the process of entering the first accommodation chamber 31 from the second accommodation chamber 41. The outer edge of the guide part 412 is disposed close to the inner edge of the third water inlet 34, and a stopper 413 extending in the radial direction and supported on the bottom wall of the upper housing 3 is disposed on the outer peripheral wall of the guide part 412, and the outer edge of the stopper 413 is disposed corresponding to the inner edge of the locking leg 33. This structure is favorable to improving the leakproofness of third inlet 34 department, avoids rivers to leak and influences the lift that the bottom sprays.

The output shaft 51 of the present embodiment is radially limited to the upper impeller 1 and the lower impeller 2, respectively, and a nut capable of preventing the upper impeller 1 from moving along the axial direction of the output shaft 51 is disposed at the upper end of the output shaft 51. By adopting the structure, the upper shell 3 is convenient to disassemble and assemble, the upper impeller 1 can be taken down after the upper shell 3 is taken down from the clamping ring 441, and the cavity on the upper parts of the upper shell 3, the upper impeller 1 and the lower shell 4 is cleaned, so that bacteria breeding is avoided, and the cleaning effect is improved.

In this embodiment, as shown in fig. 7, the cleaning machine to which the above-described dual pump system is applied includes a tank 6 and a water supply pipe 7 capable of supplying water from the bottom of the tank 6 upward, the lower housing 4 is constrained on the inner bottom wall of the tank 6, and the water outlet 422 is connected to the lower end of the water supply pipe 7. The water supply pipeline 7 is provided with a first branch pipeline 71 and a second branch pipeline 72 which are independent from each other, the water outlet end of the first branch pipeline 71 is connected with the water inlet end of the middle spray arm a1, and the water outlet end of the second branch pipeline 72 is connected with the water inlet end of the top spray arm a 2. By adopting the structure, the spraying of the lower layer, the middle layer and the top layer is realized, and the cleaning effect is favorably improved.

The bottom of the box 6 is further provided with a shunt valve 8 for controlling whether the first branch pipeline 71 and the second branch pipeline 72 circulate, a water inlet of the shunt valve 8 is connected with a water outlet 422 of the lower shell 4, a first water outlet of the shunt valve 8 is connected with an input end of the first branch pipeline 71, and a second water outlet of the shunt valve 8 is connected with an input end of the second branch pipeline 72. The structure is convenient for controlling the use state of the middle-layer and top-layer spraying according to the requirement, for example, the first branch pipeline 71 can be closed, the second branch pipeline 72 can be opened, and only the top-layer spraying is carried out; the first branch pipeline 71 can be opened, the second branch pipeline 72 can be closed, and only middle-layer spraying is carried out, so that more use requirements can be met.

The middle part of the box body 6 is provided with a clapboard which can divide the inner cavity of the box body into an upper cavity and a lower cavity which are relatively independent from each other up and down, the bottom spray arm is positioned at the bottom of the lower cavity, the middle spray arm a1 is positioned at the middle part or the upper part of the lower cavity, and the top spray arm a2 is positioned in the upper cavity. By adopting the structure, the lower cavity or the upper cavity and the lower cavity can be conveniently sprayed and cleaned according to the requirements, so that more requirements of consumers are met.

The water supply pipeline 7 is arranged close to the inner side wall of the box body 6, the top spray arm a2 comprises a first spray arm a21 extending from the water supply pipeline 7 to the middle of the box body 6 and a second spray arm a22 located above the first spray arm a21 and arranged close to the inner side wall of the box body 6, the first spray arm a21 is located at the bottom of the upper cavity and used for upwards spraying water, and the second spray arm a22 is located at the middle or upper part of the upper cavity and used for spraying water to the area above the first spray arm a 21. The structure is favorable for eliminating the cleaning dead angle of the upper cavity and improving the cleaning effect in the upper cavity.

The bottom of the box body 6 is provided with a concave draining area 60, the top of the draining area 60 is covered with a filter screen plate 601, the first water inlet 411 and the second water inlet 421 are both positioned below the filter screen plate 601, the filter screen plate 601 is provided with a slag collecting basket 9, the bottom of the slag collecting basket 9 is positioned in the draining area 601 and is arranged close to the first water inlet 411, and the first water inlet 411 is connected with a suction nozzle 410 which extends obliquely downwards and is arranged corresponding to the side wall of the slag collecting basket 9. This structure is favorable to improving the velocity of water flow of collection sediment basket 9 department to slow down filter plate 601's velocity of water flow, avoid tiny residue to accumulate on filter plate 601, improve the sediment effect of collection, simultaneously, suction nozzle 410 increase collection sediment basket 9 lateral wall department velocity of water flow can also erode the lateral wall of collection sediment basket 9, improves the cleaning nature of collection sediment basket 9.

When the cleaning machine of the embodiment is used, the output shaft 51 of the driving member 5 rotates to drive the upper impeller 1 and the lower impeller 2 to rotate, the axial flow blade at the lower part of the first blade 12 sucks water from the first water inlet 411 into the second accommodating cavity 41 and conveys the water upwards into the first accommodating cavity 31, and the water in the first accommodating cavity 31 is sprayed out through the spray holes 32 under the action of the upper part of the first blade 12; the second blade 22 sucks water from the second water inlet 421 into the third accommodating cavity 42, and conveys the water to the water supply pipeline 7 through the water outlet 422 along the guide pipeline 423 in the circumferential direction, the water supply pipeline 7 conveys the water flow upwards to spray at the top and/or the middle part, and during drainage, the water is sucked and discharged through the valve-pump integrated structure at the bottom of the box body below the slag collecting basket.

Directional terms such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the present invention, but these terms are used herein for convenience of description only and are determined based on example orientations shown in the drawings. Because the disclosed embodiments may be arranged in different orientations, these directional terms are for illustrative purposes only and should not be construed as limiting, and for example, "upper" and "lower" are not necessarily limited to orientations opposite or consistent with the direction of gravity.

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter collectively referred to as a first portion and a second portion), i.e., a fluid (gas, liquid or a mixture of both) can flow along a flow path from the first portion or/and be transported to the second portion, and may be directly communicated between the first portion and the second portion, or indirectly communicated between the first portion and the second portion via at least one third member, which may be a fluid passage such as a pipe, a channel, a duct, a flow guide, a hole, a groove, or a chamber allowing the fluid to flow therethrough, or a combination thereof.

Claims (19)

1. A water flow system comprising a spray device (a) and a pump (b) for supplying water to the spray device (a), characterized in that: the spraying device (a) comprises:

the bottom spraying arm is used for spraying water flow upwards;

a middle spray arm (a1) arranged above the side of the bottom spray arm and used for spraying water flow to the upper area of the bottom spray arm;

a top spray arm (a2) provided above the middle spray arm (a1) and used for spraying water flow to the upper part or the side area of the top spray arm (a 2);

the pump (b) comprises:

an upper impeller (1) having a first shaft (11) located at the center and first blades (12) that are circumferentially spaced apart from each other on the circumferential surface of the first shaft (11) and extend in the axial direction;

a lower impeller (2) having a second shaft (21) located at the center and second blades (22) circumferentially spaced apart from each other on the circumferential surface of the second shaft (21);

the upper shell (3) is provided with a first accommodating cavity (31) for mounting the upper part of the first blade (12), the top wall and/or the side wall of the upper shell (3) is/are provided with spray holes (32) which are communicated with the first accommodating cavity (31) in a fluid mode, and the upper shell (3) forms the bottom spray arm; and

the lower shell (4) is connected to the lower portion of the upper shell (3), a second accommodating cavity (41) used for installing the lower portion of the first blade (12) is formed in the upper portion of the lower shell (4), the second accommodating cavity (41) is communicated with the first accommodating cavity (31), a first water inlet (411) used for allowing water to enter the second accommodating cavity (41) is formed in the side wall of the lower shell (4), a third accommodating cavity (42) used for installing the lower impeller (2) is formed in the lower portion of the lower shell (4), and a second water inlet (421) used for allowing water to enter the third accommodating cavity (42) and a water outlet (422) output from the third accommodating cavity (42) are formed in the side wall and/or the bottom wall of the lower shell (4).

2. The water flow system of claim 1, wherein: and a partition plate (43) used for dividing the second accommodating cavity (41) and the third accommodating cavity (42) into relatively independent cavities is arranged in the middle of the lower shell (4).

3. The water flow system of claim 2, wherein: the third accommodating cavity (42) is located below the partition plate (43) and is approximately disc-shaped, the second water inlet (421) is formed in the bottom wall of the lower shell (4), and the water outlet (422) is formed in the side wall of the lower shell (4) and is tangentially connected with the third accommodating cavity (42) through a guide pipeline (423).

4. The water flow system of claim 2, wherein: the second accommodating cavity (41) is located above the partition plate (43) and extends vertically, and the inner diameter of the second accommodating cavity (41) is smaller than that of the third accommodating cavity (42) and is matched with the lower portion of the first blade (12).

5. The water flow system of claim 4, wherein: the n-shaped coaming (431) transversely extending is arranged on the top wall of the partition plate (43), a water inlet channel (432) communicated with the second accommodating cavity (41) is formed by the coaming (431) and the partition plate (43) in a surrounding mode, and the outer port of the water inlet channel (432) forms the first water inlet (411).

6. The water flow system of claim 1, wherein: the outer peripheral wall of the upper portion of the lower casing (4) is provided with a support plate (44) extending in the radial direction, and the upper casing (3) is restrained on the support plate (44).

7. The water flow system of claim 6, wherein: be provided with rand (441) on the upper wall of backup pad (44), be provided with on the diapire of last casing (3) and pass rand (441) with rotating and arrange and with rand (441) diapire looks joint spacing card foot (33).

8. The water flow system of claim 1, wherein: and a third water inlet (34) arranged corresponding to the first accommodating cavity (31) is formed in the bottom wall of the upper shell (3), and the third water inlet (34) is butted with the upper end opening of the second accommodating cavity (41).

9. The water flow system of claim 8, wherein: the diameter of the third water inlet (34) is larger than the inner diameter of the second accommodating cavity (41), and the inner diameter of the upper part of the lower shell (4) close to the upper end of the second accommodating cavity (41) is gradually enlarged to form a guide part (412) which can be smoothly transited and connected with the inner bottom wall of the first accommodating cavity (31).

10. The water flow system of claim 9, wherein: the outer edge of the guide part (412) is close to the inner edge of the third water inlet (34), and a blocking piece (413) which extends along the radial direction and is supported on the bottom wall of the upper shell (3) is arranged on the outer peripheral wall of the guide part (412).

11. The water flow system of claim 1, wherein: the upper part of the first blade (12) is a centrifugal blade, and the lower part of the first blade is an axial flow blade; the second blade (22) is a centrifugal blade.

12. The water flow system of claim 1, wherein: the impeller is characterized by further comprising a driving piece (5) for driving the upper impeller (1) and the lower impeller (2) to rotate, wherein the driving piece (5) is arranged below the lower shell (4) and the output shaft (51) is arranged upwards, and the output shaft (51) penetrates through the lower shell (4) from bottom to top to extend into the first accommodating cavity (31) of the upper shell (3) and is connected with the lower impeller (2) and the upper impeller (1) respectively.

13. The water flow system of claim 12, wherein: the output shaft (51) is radially limited with the upper impeller (1) and the lower impeller (2) respectively, and a nut capable of preventing the upper impeller (1) from moving along the axial direction of the output shaft (51) is arranged at the upper end of the output shaft (51).

14. A cleaning machine using a water flow system according to any one of claims 1 to 13, comprising a tank (6) and a water supply pipe (7) for supplying water from the bottom of the tank (6) upwards to a middle spray arm (a1) and a top spray arm (a2), wherein: the lower shell (4) is restricted on the inner bottom wall of the box body (6) and the water outlet (422) is connected with the lower end of the water supply pipeline (7).

15. The cleaning machine of claim 14, wherein: the water supply pipeline (7) is internally provided with a first branch pipeline (71) and a second branch pipeline (72) which are relatively independent, the water outlet end of the first branch pipeline (71) is connected with the water inlet end of the middle spraying arm (a1), and the water outlet end of the second branch pipeline (72) is connected with the water inlet end of the top spraying arm (a 2).

16. The cleaning machine of claim 15, wherein: the bottom of the box body (6) is also provided with a shunt valve (8) used for controlling whether the first branch pipeline (71) and the second branch pipeline (72) circulate or not, a water inlet of the shunt valve (8) is connected with a water outlet (422) of the lower shell (4), a first water outlet (422) of the shunt valve is connected with the input end of the first branch pipeline (71), and a second water outlet (422) of the shunt valve is connected with the input end of the second branch pipeline (72).

17. The cleaning machine of claim 14, wherein: the box (6) middle part is provided with can be separated its inner chamber for relative independent upper chamber body and lower cavity's baffle from top to bottom, the bottom spray arm is located the bottom of cavity down, middle part spray arm (a1) are located the middle part or the upper portion of cavity down, top spray arm (a2) are located the cavity.

18. The cleaning machine of claim 17, wherein: box (6) inside wall arrangement is pressed close to in water supply pipe (7), top spray arm (a2) include from water supply pipe (7) to box (6) middle part extension first spray arm (a21) and be located this first spray arm (a21) top and be close to second spray arm (a22) that box (6) inside wall arrangement, first spray arm (a21) are located the bottom of cavity and are used for upwards spraying rivers, second spray arm (a22) are located the middle part or the upper portion of cavity and are used for spraying rivers to the region of first spray arm (a21) top.

19. The cleaning machine of claim 14, wherein: the utility model discloses a slag collecting device, including box (6), box (6) bottom is provided with recessed waterlogging caused by excessive rainfall region (60), and the top of this waterlogging caused by excessive rainfall region (60) covers has filter screen board (601), first water inlet (411) and second water inlet (421) all are located filter screen board (601) below, filter screen board (601) are installed and are collected sediment basket (9), and the bottom of this collection sediment basket (9) is located waterlogging caused by excessive rainfall region (60) and is close to first water inlet (411) and arranges, be connected with suction nozzle (410) that the lateral wall that extends and correspond collection sediment basket (9) arranged on first water inlet (411) to one side.

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