CN219206810U

CN219206810U - Open type water flow system and cleaning machine

Info

Publication number: CN219206810U
Application number: CN202222625999.1U
Authority: CN
Inventors: 姚永磊; 韩健健; 施郑赞; 刁硕; 陆泽杰
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-06-20
Anticipated expiration: 2032-09-30

Abstract

The utility model relates to an open water flow system and a cleaning machine, comprising: the bottom of the pump shell is provided with a water suction port, and the top of the pump shell is provided with a water outlet; the baffle is arranged in the pump shell and divides the inner cavity of the pump shell into a water drain cavity positioned at the lower part and a diversion cavity positioned at the upper part, a flow channel for drawing water flow out along the circumferential direction is formed in the circumferential direction of the water drain cavity, a notch for communicating the flow channel with the diversion cavity is formed at the edge of the baffle, and the water outlet is communicated with the diversion cavity. According to the utility model, the baffle, the flow channel and the impeller for axially guiding, pressurizing and axially outputting the axial water inflow are arranged in the pump shell so as to meet the water pressure requirement, and on the basis, the spray arm is arranged on the pump shell without being matched with the impeller, so that the water flow stability of the spray arm is improved, and the rotation stability of the spray arm is further improved.

Description

Open type water flow system and cleaning machine

Technical Field

The utility model relates to the technical field of dish washers, in particular to an open water flow system and a cleaning machine.

Background

With the improvement of living standard of people, dish washers are becoming common equipment in kitchens.

The water flow system in the current dish washer is mainly of an open type and a closed type, a water pump main body of the open type water flow system is arranged in the washing cavity and is directly communicated with the washing cavity, and a water pump of the closed type water flow system is arranged outside the washing cavity and is communicated with the washing cavity through a pipeline. The open water flow system is beneficial to reducing the energy loss of the fluid due to shortening the return water stroke, and has great advantages in the aspect of the performance of the water pump.

The utility model provides a preceding patent ZL 201310749864.9 "basin formula cleaning machine" of this applicant discloses a cleaning machine that adopts open rivers system, and it includes the box that forms the washing space, and the box includes the basin body, and the basin body is at least at the central part indent, and the position of indent is last to be covered with the waterlogging caused by excessive rainfall board the same with recess position shape, has offered a plurality of waterlogging caused by excessive rainfall holes that are used for the waterlogging caused by excessive rainfall on the waterlogging caused by excessive rainfall board, and the space between position and the waterlogging caused by excessive rainfall board forms the waterlogging caused by excessive rainfall district, and the waterlogging caused by excessive rainfall board flushes with other positions in basin body bottom, is equipped with the water pump that discharges this waterlogging caused by excessive rainfall district to the waterlogging caused by excessive rainfall board top in the waterlogging caused by excessive rainfall district.

The structure sets up the water pump in the waterlogging caused by excessive rainfall region of basin body, and is effectual to the moisturizing of water pump. However, as the spray arm serving as the water outlet part needs to be used as a part of the pump shell, namely, the spray arm is matched with the impeller to realize water drawing and water flow distribution, and the rotation of the spray arm is driven by viscous force of water flow, the runner inlet of the spray arm serving as a part of the pump shell is in a certain rotation matching relation with the impeller, so that the impact force of water flow on the spray arm is unstable easily, and the rotation stability of the spray arm is influenced; at the same time, the spray arm is in rotary fit with the parts below the spray arm to generate an assembly gap, and the assembly gap is arranged corresponding to the outer side of the impeller, so that the water pressure is easily influenced due to the fact that air is sucked into the assembly gap or water leakage occurs.

Disclosure of Invention

The first technical problem to be solved by the present utility model is to provide an open water flow system for improving the rotation stability of a water spraying component by improving the water flow stability.

The second technical problem to be solved by the utility model is to provide an open water flow system capable of avoiding gas suction and preventing water leakage.

The third technical problem to be solved by the utility model is to provide a cleaning machine with the water flow system aiming at the current state of the art.

The utility model solves at least one of the technical problems by adopting the following technical proposal:

an open water flow system comprising:

the bottom of the pump shell is provided with a water suction port, and the top of the pump shell is provided with a water outlet;

the baffle plate is arranged in the pump shell and divides the inner cavity of the pump shell into a water drain cavity positioned at the lower part and a diversion cavity positioned at the upper part, a flow channel for drawing water flow out along the circumferential direction is formed in the circumferential direction of the water drain cavity, a notch for communicating the flow channel with the diversion cavity is formed at the edge of the baffle plate, and the water outlet is communicated with the diversion cavity;

the impeller is rotatably arranged in the water drawing cavity and is used for providing power for drawing water to the flow channel.

In the utility model, the flow channel comprises a first flow channel and a second flow channel which are arranged oppositely in the circumferential direction and have opposite water drawing directions, and the first flow channel and the second flow channel are tangentially connected with the middle part of the water drawing cavity. By adopting the structure, the energy loss is reduced, and the water pumping efficiency is improved.

Preferably, the water drain cavity is provided with a first flow dividing part and a second flow dividing part which extend from the inner peripheral wall of the pump shell in a spiral manner along the circumferential direction, the first flow dividing part and the second flow dividing part are arranged oppositely in the circumferential direction of the pump shell, and the tip ends face the water incoming direction so as to form a flow dividing end. The first flow dividing part and the second flow dividing part are matched with the inner wall of the pump shell to form a first flow passage and a second flow passage structure which are symmetrically arranged and tangentially connected with the water drawing area at the central part of the lower cavity, so that the flow dividing and water drawing effects are improved, the energy loss of the fluid is reduced, and the water flow and the lift are improved.

Preferably, the first flow passage is formed at the periphery of the first flow dividing part, the second flow passage is formed at the periphery of the second flow dividing part, and the inner bottom wall of the pump shell extends from bottom to top along the water flow direction at the parts corresponding to the first flow passage and the second flow passage respectively to form a diversion inclined plane for guiding water to the corresponding notch. By adopting the structure and the arrangement mode, the flow of the first flow channel and the second flow channel is reasonably distributed, and the split flow is improved. The water which is branched by the flow passage is output upwards through the water outlet, and the diversion inclined plane is arranged, so that the water diversion effect is improved, the rectification and diversion effects are realized, and the turbulence of the fluid in the process of switching from circumferential flow to axial flow is avoided, and the energy loss is reduced.

As an improvement, the lower surface of the partition plate is provided with a first flow dividing blade and a second flow dividing blade which extend vertically, the first flow dividing blade is arranged close to the outer side wall of the first flow dividing part, the end part of the first flow dividing blade extends towards the water suction port along the extending track of the flow dividing end of the first flow dividing blade, and the second flow dividing blade is arranged close to the outer side wall of the second flow dividing part, and the end part of the second flow dividing blade extends towards the water suction port along the extending track of the flow dividing end of the second flow dividing part. The structure can enable the water diversion structure to be closer to the water suction port, so that the water diversion effect is improved.

Preferably, the first flow dividing blades form the inner side wall of the first flow channel, the second flow dividing blades form the inner side wall of the second flow channel, the notch comprises a first part and a second part which are arranged along the water flow direction, the first part is positioned at the end part of the corresponding flow dividing blade, and the second part corresponds to the top part of the corresponding flow dividing blade to form the inlet of the flow guiding cavity. The notch structure is more reasonably matched with the flow channel, so that the fluid is always guided and rectified in the reversing flow process, and the energy loss is reduced.

Preferably, the upper surface of the partition plate is provided with a drainage piece which is positioned at the central part and used for guiding water flow from the notch to the water outlet, and the drainage piece is shaped into a conical structure which gradually extends upwards from outside to inside along the radial direction. The structure is favorable for further reducing energy loss and increasing water pressure.

Further preferably, the inner wall surface of the pump shell corresponding to the flow guiding cavity extends outwards and inwards from bottom to top in radial direction to form a curved surface flow guiding structure matched with the outer surface of the conical structure, and the curved surface flow guiding structure and the conical structure enclose together a flow guiding flow passage with the lower end connected with the notch and the upper end smoothly connected with the water outlet. The structure is favorable for further reducing energy loss and increasing water pressure.

Preferably, the impeller is a centrifugal impeller with a water inlet at the bottom and a water outlet at the side, the bottom of the impeller extends from outside to inside along the radial direction from top to bottom to form a downward-penetrating water inlet, and correspondingly, at least part of the bottom wall of the pump shell extends from outside to inside along the radial direction from top to bottom to form a downward-penetrating water suction port matched with the water inlet. The structure reduces the water suction port of the water pump, is favorable for improving the water suction effect and the water return efficiency, and avoids gas suction.

The utility model provides a cleaning machine, includes box, bottom spray arm, still includes above-mentioned open water pump, the box bottom is provided with the return water region of indent, and the top in this return water region is covered with the filter, the pump case is located in the return water region, have the gap of absorbing water between the water sucking mouth of pump case bottom and the return water region bottom, the delivery port at pump case top is located on the filter and is linked together with the water inlet of bottom spray arm.

Compared with the prior art, the utility model has the advantages that: according to the utility model, the baffle, the flow channel and the impeller for axially guiding, pressurizing and axially outputting the axial water inflow are arranged in the pump shell so as to meet the water pressure requirement, and on the basis, the spray arm is arranged on the pump shell without being matched with the impeller, so that the water flow stability of the spray arm is improved, and the rotation stability of the spray arm is further improved.

Drawings

FIG. 1 is a schematic view of an open water flow system according to an embodiment of the present utility model;

FIG. 2 is an assembled view of a pump housing and a diaphragm in an embodiment of the present utility model;

FIG. 3 is a first cross-sectional view of FIG. 1;

FIG. 4 is a second cross-sectional view of FIG. 1;

FIG. 5 is a third cross-sectional view of FIG. 1;

FIG. 6 is a schematic view of a partition according to an embodiment of the present utility model;

fig. 7 is a schematic view of the bottom structure of fig. 6.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 7, the open water flow system of the present embodiment is used in a dishwasher, and comprises a pump housing 1, a partition plate 2, an impeller 3, a spray arm 4 and a driving part (not shown in the drawings), wherein the bottom of the pump housing 1 is provided with a water suction port 11, and the top is provided with a water outlet 12; the baffle plate 2 is arranged in the pump shell 1 and divides the inner cavity of the pump shell 1 into a water drawing cavity 101 positioned at the lower part and a diversion cavity 102 positioned at the upper part. The circumference of the water drawing cavity 101 is provided with a flow channel for drawing water flow out along the circumference, the edge of the partition board 2 is provided with a notch 23 for communicating the flow channel with the diversion cavity, and the water outlet 12 is communicated with the diversion cavity 102. The impeller 3 is rotatably arranged in the water drawing cavity 101 and is used for providing power for drawing water to the flow channel, the bottom of the impeller 3 is provided with an inlet 31 which is arranged corresponding to the water suction port 11, and the side part is provided with an outlet 32 which is arranged corresponding to the notch 23; the spray arm 4 is rotatably arranged on the pump shell 1, and the bottom is provided with a water inlet which is arranged corresponding to the water outlet 12. A drive is provided below the pump housing 1 for driving the impeller 3 in rotation.

A water suction gap is formed between the bottom wall of the pump casing 1 and the top wall of the driving member, and a power output shaft 51 of the driving member extends upwards and penetrates through the water suction port 11 to be connected with the impeller 3. By adopting the structure, the water suction gap of the pump shell 1 can be set very low, so that gas water suction is avoided, the return water stroke can be further shortened, and the water pumping efficiency is improved.

In this embodiment, the flow channels include a first flow channel 10 and a second flow channel 20 which are arranged opposite to each other in the circumferential direction and in opposite directions, and the first flow channel 10 and the second flow channel 20 are tangentially connected to the middle part of the water drawing cavity 101.

The water drawing chamber 101 is provided therein with a first flow dividing portion 14 and a second flow dividing portion 15 spirally extending inward in the circumferential direction from the inner peripheral wall of the pump casing 1, the first flow dividing portion 14 and the second flow dividing portion 15 being arranged opposite to each other in the circumferential direction of the pump casing 1 with the tip end facing the water supply direction to form a flow dividing end 100. The first and second

flow dividing parts

14 and 15 are matched with the inner wall of the pump shell 1 to form a first flow passage 10 and a second flow passage 20 which are symmetrically arranged and tangentially connected with the water drawing area at the central part of the lower cavity 102, so as to improve the flow dividing and water drawing effects, reduce the energy loss of the fluid and improve the water flow and the lift.

The first flow channel 10 is formed at the periphery of the first flow dividing portion 14, the second flow channel 20 is formed at the periphery of the second flow dividing portion 15, and the inner bottom wall of the pump housing 1 extends from bottom to top in the water flow direction at the portions corresponding to the first flow channel 10 and the second flow channel 20 to form a diversion slope 201 for guiding water to the corresponding notch 23. By adopting the structure and the arrangement mode, the flow of the first flow channel 10 and the second flow channel 20 can be reasonably distributed, and the split flow rate can be improved. The water which is branched by the flow passage is to be output upwards through the water outlet 12, and the diversion inclined plane 201 is arranged, so that the water diversion effect is improved, the rectification and diversion effects are realized, and the turbulence of the fluid in the process of switching from circumferential flow to axial flow is avoided, and the energy loss is reduced.

The lower surface of the partition plate 2 of this embodiment is provided with a first flow dividing blade 21 and a second flow dividing blade 22 which extend vertically, the first flow dividing blade 21 is arranged close to the outer side wall of the first flow dividing portion 14, and the end portion extends to the water suction port 11 along the extending track of the flow dividing end thereof, and the second flow dividing blade 22 is arranged close to the outer side wall of the second flow dividing portion 15, and the end portion extends to the water suction port 11 along the extending track of the flow dividing end thereof. The above structure enables the water diversion structure to be closer to the water suction port 11, thereby improving the water diversion effect.

The first splitter vane 21 forms an inner sidewall of the first flow channel 10, the second splitter vane 22 forms an inner sidewall of the second flow channel 20, the notch 23 includes a first portion 231 and a second portion 232 arranged along the water flow direction, the first portion 231 is located at an end of the corresponding splitter vane, and the second portion 232 corresponds to a top of the corresponding splitter vane to form an inlet of the flow guiding cavity 102. The notch 23 is more reasonably matched with the runner, so that the fluid is always guided and rectified in the reversing flow process, and the energy loss is reduced.

The upper surface of the partition plate 2 of this embodiment is provided with a drainage member 25 located at the central portion for guiding water flow from the notch 23 to the water outlet 12, and the drainage member 25 is formed into a tapered structure extending gradually upward from the outside to the inside in the radial direction, which is advantageous for further reducing energy loss and increasing water pressure. The inner wall surface of the pump shell 1 corresponding to the diversion cavity 102 extends from bottom to top to form a curved diversion structure 221 matched with the outer surface of the conical structure, and the curved diversion structure 221 and the conical structure together enclose a diversion flow passage 222 with the lower end connected with the notch 23 and the upper end smoothly connected with the water outlet 12, which is beneficial to further reducing energy loss and increasing water pressure.

The impeller 3 is a centrifugal impeller, the bottom of the impeller 3 extends from outside to inside along the radial direction from top to bottom to form a downward-penetrating inlet 31, and correspondingly, at least part of the bottom wall of the pump shell 1 extends from outside to inside along the radial direction from top to bottom to form a downward-penetrating water suction port 11 matched with the inlet 31. This structure reduces water pump water sucking mouth 11, is favorable to improving water absorption effect, return water efficiency to avoid gaseous suction.

The cleaning machine of this embodiment includes the box, still include above-mentioned rivers system, the bottom half is provided with the backwater region of indent, the top in this backwater region covers there is the filter, pump case 1 locates in the backwater region and is close to the bottom wall arrangement of box, spray arm 4 is located on the filter and the roof is opened there is water supply spun hole of spraying, the outer bottom of box is provided with the driving piece that is used for driving impeller 3 pivoted, the driving piece of this embodiment is the motor, the power output shaft 51 of this driving piece upwards extends and passes the water sucking mouth 11 of pump case 1 and is connected with impeller 3. The outer bottom of box is located to the drive spare, and the box diapire is opened there is the partial roof of supply drive spare and is exposed the installing port in the box, after the assembly, the partial roof of box roughly flushes or slightly is higher than the diapire in return water region with the diapire in return water region, and the water absorption clearance 10 is located between diapire in the box and pump case 1 outer bottom wall.

In the description and claims of the present utility model, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc., are used to describe various example structural parts and elements of the present utility model, but these terms are used herein for convenience of description only and are determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the utility model may be arranged in a variety of orientations, the directional terminology is used for purposes of illustration and is in no way limiting, such as "upper" and "lower" are not necessarily limited to being in a direction opposite or coincident with the direction of gravity.

Claims

1. An open water flow system, comprising:

a water suction port (11) is arranged at the bottom of the pump shell (1), and a water outlet (12) is arranged at the top of the pump shell;

the baffle plate (2) is arranged in the pump shell (1) and divides the inner cavity of the pump shell (1) into a water drawing cavity (101) at the lower part and a flow guiding cavity (102) at the upper part, a flow channel for drawing water flow out along the circumferential direction is formed in the circumferential direction of the water drawing cavity (101), a notch (23) for communicating the flow channel with the flow guiding cavity (102) is formed at the edge of the baffle plate (2), and the water outlet (12) is communicated with the flow guiding cavity (102);

an impeller rotatably provided in the water drawing chamber (101) for supplying power to draw water into the flow passage.

2. The open water flow system of claim 1, wherein: the flow channels comprise a first flow channel (10) and a second flow channel (20) which are arranged oppositely in the circumferential direction and have opposite water drawing directions, and the first flow channel (10) and the second flow channel (20) are tangentially connected with the middle part of the water drawing cavity (101).

3. The open water flow system of claim 2, wherein: the water drawing cavity (101) is internally provided with a first diversion part (14) and a second diversion part (15) which extend from the inner peripheral wall of the pump shell (1) in a circumferential inward spiral manner, the first diversion part (14) and the second diversion part (15) are oppositely arranged in the circumferential direction of the pump shell (1), and the tip faces the water flowing direction so as to form a diversion end (100).

4. An open water flow system according to claim 3, wherein: the first flow passage (10) is formed at the periphery of the first flow dividing part (14), the second flow passage (20) is formed at the periphery of the second flow dividing part (15), and the inner bottom wall of the pump shell (1) extends from bottom to top along the water flow direction at the parts corresponding to the first flow passage and the second flow passage (20) respectively to form a diversion inclined plane (201) for guiding water flow to the corresponding notch (23).

5. The open water flow system of claim 4, wherein: the lower surface of baffle (2) is provided with first reposition of redundant personnel blade (21), the second reposition of redundant personnel blade (22) of vertical extension, the lateral wall arrangement and the tip of first reposition of redundant personnel portion (14) are pressed close to the extension orbit of its reposition of redundant personnel end (100) are extended to water sucking mouth (11) department, the lateral wall arrangement and the tip of second reposition of redundant personnel portion (15) are pressed close to the second reposition of redundant personnel blade (22) are extended to water sucking mouth (11) department along the extension orbit of its reposition of redundant personnel end (100).

6. The open water flow system of claim 5, wherein: the first flow dividing blades (21) form the inner side wall of the first flow channel (10), the second flow dividing blades (22) form the inner side wall of the second flow channel (20), the notch (23) comprises a first part (231) and a second part (232) which are arranged along the water flow direction, the first part (231) is positioned at the end part of the corresponding flow dividing blade, and the second part (232) corresponds to the top part of the corresponding flow dividing blade to form the inlet of the flow guiding cavity (102).

7. The open water flow system according to any one of claims 1 to 6, wherein: the upper surface of the partition plate (2) is provided with a drainage piece (25) which is positioned at the central part and used for guiding water flow from the notch to the water outlet, and the drainage piece (25) is shaped into a conical structure which gradually extends upwards from outside to inside along the radial direction.

8. The open water flow system of claim 7, wherein: the inner wall surface of the pump shell (1) corresponding to the diversion cavity (102) extends outwards and inwards from bottom to top along the radial direction to form a curved diversion structure (221) matched with the outer surface of the conical structure, and the curved diversion structure (221) and the conical structure enclose together a diversion flow passage (222) with the lower end connected with the notch (23) and the upper end smoothly connected with the water outlet (12).

9. The open water flow system according to any one of claims 1 to 6, wherein: the bottom of the impeller (3) extends from outside to inside along the radial direction from top to bottom to form a downward-penetrating inlet (31), and correspondingly, at least part of the bottom wall of the pump shell (1) extends from outside to inside along the radial direction from top to bottom to form a downward-penetrating water suction port (11) matched with the inlet (31).

10. The utility model provides a cleaning machine, includes box, bottom spray arm, its characterized in that: the open water flow system comprises a box body, wherein a water return area is arranged at the bottom of the box body, a filter plate is covered at the top of the water return area, a pump shell (1) is arranged in the water return area, a water suction gap is formed between a water suction port (11) at the bottom of the pump shell (1) and the bottom of the water return area, and a water outlet (12) at the top of the pump shell (1) is positioned above the filter plate and is communicated with a water inlet of a bottom spray arm.