CN116098552B

CN116098552B - A cleaning machine with a constant flow function

Info

Publication number: CN116098552B
Application number: CN202111375633.7A
Authority: CN
Inventors: 姚永磊; 刁硕
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2026-02-10
Anticipated expiration: 2041-11-10
Also published as: CN116098552A

Abstract

The invention relates to a cleaning machine with a steady flow function, which is characterized in that a concave cavity positioned at the side of a water pumping mechanism is arranged at the bottom of a water return area, a water outlet is formed at the bottom of the concave cavity, a slag collecting basket is arranged in the concave cavity, a first water inlet corresponding to the concave cavity and arranged on the slag collecting basket is formed at the side part of the water pumping mechanism, the concave cavity is positioned at the lowest part of the water return area, the slag collecting basket is arranged at the position, not only can the slag collecting effect be improved, but also the waste water can be discharged cleanly, the water suction level of the concave cavity is reduced, the suction air bubble can be avoided, the lift is improved, the water flow velocity of the side wall of the slag collecting basket can be increased by the first water inlet in the water inlet process, so that residues can be firmly collected in the slag collecting basket, the escape of the residues can be avoided, the side wall of the slag collecting basket can be washed, the cleanliness of the slag collecting basket is improved, the steady flow component is arranged at the first water inlet, the sucked water can be defoamed and filtered, and the water suction stability is improved, and the power stability of the water pumping mechanism is improved.

Description

Cleaning machine with steady flow function

Technical Field

The invention relates to the technical field of dish washers, in particular to a cleaning machine with a steady flow function.

Background

In order to achieve better washing effect, the table-type and cabinet-type dish washing machine is generally designed with top, middle and lower spray arms, and when the machine works, the washing pump conveys water to the top, middle and lower spray arms through pipelines, the water sprays from the top, middle and lower spray arms and washes tableware and then falls back to a water cup at the bottom of the dish washing machine, and the washing pump conveys the fallen water to the top, middle and lower spray arms again to complete a cycle.

For example, the Chinese patent application No. CN106859563A discloses an energy-saving dish washer (application No. CN 201611232345.5) which comprises a cavity for accommodating tableware and providing a cleaning space, a spraying system for spraying water to clean the tableware and a pump body for pumping water and supplying water to the spraying system, wherein the spraying system is arranged in the cavity, a water pumping end of the pump body is communicated with the cavity, a water supply end of the pump body is communicated with the spraying system, the spraying system comprises an inner water pipe and more than two sets of spraying devices, 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 the more than two sets of spraying devices, the spraying devices are communicated with the corresponding water outlets, and when the water distribution device is operated, the water distribution device is communicated with more than one water outlet according to instructions, so that the more than one set of spraying devices can carry out cleaning work.

In the above-mentioned existing dish washer that can carry out bottom and top and spray, the pump that is used for supplying water for spraying system generally adopts closed structure, i.e. the spiral case of washing pump is located the box below, is provided with rotatable impeller in the spiral case, and the water inlet and the washing chamber bottom of washing pump spiral case are linked together, and the delivery port of spiral case is connected with water knockout drum, and this water knockout drum divide into the rivers to the first branch road of bottom spray arm water supply and to the second branch road of top spray arm water supply. Meanwhile, a closed volute fixed below the box body is difficult to disassemble and clean, bacteria can be bred due to accumulation of residues after long-time use, the washing effect is affected, and bad experience can be caused for a user.

In the current water flow system of the existing dish washing machine, the bottom spray arm is generally positioned at the central part and above the filter screen plate, the slag collecting basket is positioned beside the bottom spray arm, and the slag is collected by means of water flow self-gravity and is filtered by the filter screen plate and is discharged after being collected by the slag collecting basket. In the drainage process, fine residues are easy to leave on the filter screen plate due to the fact that the flow speed of water on the filter screen plate is too high, the slag collecting effect of the slag collecting basket is poor, the flow speed of water on the filter screen plate is too low, the smoothness of slag discharging is affected, and meanwhile, fine pollutants are easy to adhere to the side wall of the slag collecting basket and are difficult to clean.

In addition, when the motor rotates at a certain speed during the operation of the cleaning machine, the stability requirement for the running power is high, which directly affects the cleaning degree. The reasons for influencing the stability of the running power are relatively many, and the running stability is influenced by the influence of pollutants (eggs and other proteins), the difference of water inflow and the slag collection and water return efficiency caused by the structure and the like due to the complex internal cleaning working conditions.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide a cleaning machine with a steady flow function, which is favorable for improving the slag collecting effect and keeping the slag basket clean, aiming at the current state of the art.

The second technical problem to be solved by the invention is to provide a cleaning machine with a steady flow function, which improves the water absorption stability and further improves the power stability of a water pumping mechanism by defoaming and filtering water sucked into a water pump according to the current state of the art.

The third technical problem to be solved by the invention is to provide a cleaning machine with a steady flow function, which can respectively provide power for two paths of washing water so as to improve the lift and water flow and further improve the cleaning effect.

The invention solves at least one technical problem by adopting the technical scheme that the cleaning machine with the steady flow function comprises a box body, wherein a concave backwater area is arranged at the bottom of the box body, a filter plate is covered at the top of the backwater area, a water pumping mechanism for pumping water from the backwater area to the upper part of the filter plate is arranged in the backwater area, the water pumping mechanism is supported at the bottom of the backwater area, a concave cavity positioned beside the water pumping mechanism is arranged at the bottom of the backwater area, a water outlet is formed at the bottom of the concave cavity, a slag collecting basket is arranged in the concave cavity, a first water inlet corresponding to the concave cavity and the slag collecting basket is formed at the side of the water pumping mechanism, and a steady flow component capable of defoaming and/or filtering water is arranged at the first water inlet.

Preferably, the first water inlet is connected with a suction nozzle extending downwards at least partially in an inclined manner, the lower end of the suction nozzle extends to the concave cavity and is arranged corresponding to the side wall of the slag collecting basket, and the flow stabilizing assembly is arranged at the suction end of the suction nozzle. The suction nozzle is arranged, the suction nozzle is greatly reduced, bubbles are isolated above the water inlet, the bubbles can be prevented from being sucked, and accordingly higher lift is kept, the lower end of the suction nozzle is arranged corresponding to the side wall of the slag collecting basket, when water is sucked, the flow velocity of water at the slag collecting basket can be mentioned, residues can be collected in the slag collecting basket, the side wall of the slag collecting basket can be cleaned, the residues are prevented from accumulating on the slag collecting basket, meanwhile, the height of an upper port of the slag collecting basket is 2-3 mm lower than the height of the filter plate, the flow velocity of water on the filter plate can be relatively slow under the condition that the flow velocity of water at the slag collecting basket is increased, the residues can be prevented from accumulating on the filter plate, and fine residues can be prevented from blocking drain holes on the filter plate due to overlarge flow velocity of water.

Preferably, the suction nozzle comprises a first part and a second part which are mutually connected along the water flow direction, the first part and the second part form a < shaped structure together, the first part is connected with a first water inlet of the water pumping mechanism in an inserting mode, and the second part extends obliquely downwards. Preferably, a groove for installing a sealing ring is circumferentially arranged on the outer peripheral wall of the first part, and in the assembled state, the sealing ring is elastically pressed between the outer peripheral wall of the first part and the inner peripheral wall of the first water inlet. Preferably, an installation shaft positioned at the bending position of the < shaped structure is arranged on the outer side wall of the suction nozzle, and correspondingly, an installation opening detachably connected with the installation shaft is formed at the edge of the first water inlet of the water pumping mechanism. The structure is convenient for assembling the suction nozzle and the water pumping mechanism, and reduces the energy loss of water flow at the joint of the suction nozzle and the water pumping mechanism.

Preferably, the side wall of the lower part of the second part, which is close to the water pumping mechanism, extends outwards obliquely from top to bottom to form a water absorbing area with gradually increased cross-sectional area, and the steady flow assembly is arranged at the inlet of the water absorbing area. The structure is used for arranging the flow stabilizing component at the front end so as to ensure that the minimum water passing area of the flow stabilizing component is equivalent to the area of the first water inlet and avoid throttling.

In the invention, the steady flow assembly comprises a steady flow plate and a sealing gasket, wherein a plurality of water passing holes for water supply to pass through are formed in the steady flow plate, a water supplementing port is further formed in the steady flow plate, and the sealing gasket is arranged on the front side of the steady flow plate and covers the water supplementing port and is used for automatically adjusting the elastic compression amount of the sealing gasket relative to the water supplementing port under the impact of water flow. The aperture of the water passing hole is about 1mm, the water filtering effect is mainly achieved, the water supplementing port mainly achieves the compensation effect of water absorption flow, so that the water absorption flow is sufficient, when the water absorption force of the front end is overlarge, the sealing gasket of the rubber is compressed, the water passing area is reduced, namely, the water passing area can be adjusted according to the water absorption pressure of the front end except the basic water passing hole, and the steady flow effect is achieved.

Preferably, the total water passing area of each water passing hole is equivalent to the flow cross-sectional area of the first water inlet. So as to avoid the occurrence of throttling phenomenon.

In order to be convenient for install sealed pad, the area of moisturizing mouth of a river is greater than the area of water hole, be provided with the reference column that extends along the rivers direction in the moisturizing mouth of a river, sealed pad cover is put in the periphery of this reference column, thereby the tip of reference column is provided with can offset with the lateral wall of sealed pad and retrain the spacing portion on the reference column with it.

Preferably, a supporting ring which is arranged around the periphery of the water supplementing port is arranged on the peripheral wall of the flow stabilizing plate, a plurality of ribs which are radially arranged and protrude out of the supporting ring are arranged in the water supplementing port, the sealing gasket is abutted against the ribs, and the elastic compression amount of the sealing gasket is limited by the protruding height of the ribs out of the supporting ring. The structure is convenient to control the water supplementing quantity in cooperation with the water flow impact force.

Preferably, the outer side wall of the rib is provided with a notch which is arranged towards the water direction, and the depth of the notch is larger than the height of the retainer ring along the water flow direction.

Preferably, the depth of the notch is 1-2 mm, and the elastic compression amount of the sealing gasket is 0.5-1 mm.

Preferably, the outer ends of the ribs are connected to the backing ring, a bottom ring positioned at the rear side of the ribs along the water flow direction is arranged on the inner side of the backing ring, and a plurality of water supplementing holes are formed in the bottom ring along the circumferential direction. The water supplementing holes and the water supplementing ports are matched to jointly realize water supplementing, and the areas of all water supplementing areas are dispersed, so that the steady flow effect is improved.

Preferably, sharp pieces with tips arranged towards the middle of the flow stabilizing plate and used for puncturing bubbles are arranged at the edges of the flow stabilizing plate, and the sharp pieces are arranged at the upper edge and the lower edge of the flow stabilizing plate and are triangular. When foaming is caused by poor cleaning conditions (particularly, pollutants such as eggs), the large bubbles can be blasted by sharp pieces, so that the bubbles are not easy to enter a water flow system, and the stability of the cleaning process is further improved.

In the invention, a bottom spray arm, a middle spray arm and a top spray arm are arranged in the box body, the bottom spray arm is used for spraying water upwards, the middle spray arm is arranged above the side of the bottom spray arm and is used for spraying water to the upper area of the bottom spray arm, the top spray arm is arranged above the middle spray arm and is used for spraying water to the upper area or the side area of the top spray arm, and the output end of the water pumping mechanism is respectively connected with the bottom spray arm, the middle spray arm and/or the top spray arm so as to provide water conveying power for the bottom spray arm, the middle spray arm and/or the top spray arm. By adopting the structure, the cleaning dead angle is favorably eliminated, and the cleaning effect is improved.

In the above-mentioned scheme, the pump water mechanism includes:

an upper impeller having a first shaft at the center and first blades circumferentially spaced apart and axially extending on the circumferential surface of the first shaft;

The lower impeller is provided with a second shaft positioned at the center and second blades which are circumferentially distributed at intervals on the peripheral surface of the second shaft;

an upper housing having a first receiving chamber for mounting the upper portion of the first vane, the upper housing having a top wall and/or a side wall provided with a nozzle in fluid communication with the first receiving chamber, the upper housing forming the bottom shower arm, and

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

The water pumping mechanism is an open double-pump system, wherein the second accommodating cavity, the first accommodating cavity and the upper impeller which are positioned at the upper part are used for spraying water at the bottom, and the third accommodating cavity and the lower impeller which are positioned at the lower part are used for spraying water at the top and/or the middle part; the double-pump system is convenient to disassemble and assemble, the upper shell is disassembled from the lower shell, and the upper shell, the upper impeller and the lower shell can be cleaned, so that bacteria are prevented from breeding.

In the above scheme, the middle part of lower casing is provided with the baffle that is used for separating second accommodation chamber and third accommodation chamber into the independent cavity relatively. The second accommodating cavity and the third accommodating cavity are relatively independent, so that water is conveniently supplied to the lower spraying through the upper impeller and water is conveniently supplied to the top and/or the middle spraying through the lower impeller, fluid disturbance among the two accommodating cavities is reduced, and capacity loss is reduced, so that water flow lift, water flow and spraying 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. This structure is favorable to reducing the ability loss of third holding chamber output rivers.

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. This configuration is advantageous in reducing the loss of capacity of the water flow as it flows through the second receiving chamber.

Preferably, the top wall of the partition board is provided with a transverse n-shaped coaming, the coaming and the partition board jointly enclose a water inlet channel communicated with the second accommodating cavity, and the 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 reduced, and the capacity loss of water flow when flowing through the second accommodating cavity is further reduced.

For ease of assembly, the outer peripheral wall of the upper portion of the lower housing is provided with a radially extending support plate against which the upper housing is restrained. 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 clamping feet which can rotationally pass through the clamping ring to be arranged and are 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 which is arranged corresponding to the first accommodating cavity is formed in the bottom wall of the upper shell, and the third water inlet is in butt joint with the 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, the inner diameter of the upper part of the lower shell body close to the upper end of the second accommodating cavity is gradually enlarged to form a guide part which can be smoothly transitionally connected with the inner bottom wall of the first accommodating cavity, and the outer edge of the guide part is close to the inner edge of the third water inlet. The structure is favorable for reducing the capacity loss in the process of water flow entering the first accommodating cavity from the second accommodating cavity.

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

In each scheme, the water pumping mechanism further comprises a driving piece for driving the upper impeller and the lower impeller to rotate, the driving piece is arranged on the outer bottom wall of the box body, the output shaft is upwards arranged, and the output shaft penetrates through the bottom wall of the box body and the lower shell from bottom to top, stretches into the first accommodating cavity of the upper shell and is respectively connected with the lower impeller and the upper impeller. 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 assemble and disassemble, after the upper shell is taken down from the clamping ring, the nut is unscrewed, the upper impeller can be taken down, and the cavities on the upper shell, the upper impeller and the upper part of the lower shell are cleaned, so that bacterial breeding is avoided, and the cleaning effect is improved.

Preferably, a water supply pipeline for conveying the middle spray arm and the top spray arm is arranged in the box body, the input end of the water supply pipeline is connected with the water outlet of the lower shell, and the output end of the water supply pipeline is respectively connected with the middle spray arm and the top spray arm.

Preferably, the middle part of the box body is provided with a partition plate which can divide the inner cavity of the box body into an upper cavity and a lower cavity which are independent from each other, 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 needs, so that more demands of consumers are met.

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

Compared with the prior art, the water pump has the advantages that the bottom of the water return area is provided with the concave cavity positioned at the side of the water pump mechanism, the bottom of the concave cavity is provided with the water outlet, the concave cavity is internally provided with the slag collecting basket, the side part of the water pump mechanism is provided with the first water inlet corresponding to the concave cavity and the slag collecting basket, the concave cavity is positioned at the lowest position of the water return area, the slag collecting basket is arranged at the position, not only can the slag collecting effect be improved, but also the waste water can be discharged cleanly, the water inlet can reduce the water absorption water level, the suction bubble can be avoided, the lift can be improved, the water flow velocity at the side wall of the slag collecting basket can be increased by the first water inlet in the water inlet process, the slag can be firmly collected in the slag collecting basket, the escape of the slag can be avoided, the side wall of the slag collecting basket can be washed, the cleanliness of the slag collecting basket is improved, and the flow stabilizing assembly is arranged at the first water inlet, the suction water can be defoamed and filtered, so that the water absorption stability is improved, and the power stability of the water pump mechanism is improved.

Drawings

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

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

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

FIG. 4 is a schematic view of the structure of the lower housing according to the embodiment of the present invention;

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

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

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

FIG. 8 is a cross-sectional view of a washer according to an embodiment of the present invention;

FIG. 9 is an enlarged view of a portion of FIG. 8;

FIG. 10 is a schematic view of an assembly structure of a lower housing and a suction nozzle according to an embodiment of the present invention;

FIG. 11 is a schematic view of a suction nozzle according to an embodiment of the present invention;

FIG. 12 is a schematic diagram of a flow stabilizing assembly according to an embodiment of the present invention;

FIG. 13 is a cross-sectional view of a flow stabilizer assembly in accordance with an embodiment of the present invention;

FIG. 14 is a schematic diagram of a stabilizer plate according to an embodiment of the present invention.

Detailed Description

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

As shown in fig. 1 to 14, the cleaning machine of the present embodiment includes a box 6, a spraying device a and a water pumping mechanism b.

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

The bottom of the box 6 is provided with a concave backwater area 61, and the top of the backwater area 61 is covered with a filter plate 62.

The water pumping mechanism b is arranged at the water return area 61 and is used for pumping water from the water return area 61 to the spraying device a and spraying the water.

Specifically, the water pumping mechanism b is supported at the bottom of the water return area 61, and a space is formed between the water pumping mechanism b and the bottom of the water return area 61, through which water flows. The bottom of the water return area 61 is provided with a cavity 611 positioned beside the water pumping mechanism b, the bottom of the cavity 611 is provided with a water outlet 610, the cavity 611 is provided with a slag collecting basket 9, and the side of the water pumping mechanism b is provided with a first water inlet 411 corresponding to the cavity 611 and the slag collecting basket 9.

As shown in fig. 10, a suction nozzle 40 extending at least partially obliquely downward is connected to the first water inlet 411, and the lower end of the suction nozzle 40 extends to the concave cavity 611 and is arranged corresponding to the side wall of the slag collecting basket 9. The suction nozzle 40 is arranged, the suction nozzle is greatly reduced, bubbles are isolated above the water inlet, the bubbles can be prevented from being sucked, and accordingly a higher lift is maintained, the lower end of the suction nozzle 40 is arranged corresponding to the side wall of the slag collecting basket 9, when water is sucked, the flow velocity of water at the slag collecting basket 9 can be mentioned, residues can be collected in the slag collecting basket 9, the side wall of the slag collecting basket 9 can be cleaned, residues are prevented from accumulating on the slag collecting basket 9, meanwhile, the height of an upper port of the slag collecting basket 9 is 2-3 mm lower than the height of the filter plate 62, the flow velocity of water on the filter plate 62 can be relatively slowed down under the condition that the flow velocity of water at the slag collecting basket 9 is increased, residues can be prevented from accumulating on the filter plate 62, and tiny residues can be prevented from blocking water draining holes on the filter plate 62 due to overlarge flow velocity of water, so that a higher water return velocity is maintained.

The bottom wall of the pumping mechanism b is provided with a second water inlet 421, the upper end of the suction nozzle 40 is connected with the first water inlet 411, and the second end of the suction nozzle 40 extends downwards to the vicinity of the bottom of the pumping mechanism b. The above structure is beneficial to guiding the water in the concave cavity 611 to the second water inlet 421, thereby avoiding energy loss and realizing the water pumping effect of large flow and large flow rate.

In this embodiment, the pumping mechanism b has a water inlet channel 432 extending in a lateral direction, and an outer port of the water inlet channel 432 forms the first water inlet 411. The suction nozzle 40 comprises a first part 401 and a second part 402 which are mutually connected along the water flow direction, the first part 401 and the second part 402 form a < shaped structure together, the first part 401 is connected with a first water inlet 411 of the water pumping mechanism b in an inserting mode, and the second part 402 extends obliquely downwards. A groove 4011 for mounting a seal ring is provided circumferentially on the outer peripheral wall of the first portion 401, and in the assembled state, the seal ring is elastically pressed between the outer peripheral wall of the first portion 401 and the inner peripheral wall of the first water inlet 411. The outer side wall of the suction nozzle 40 is provided with a mounting shaft 403 positioned at the bending position of the < shaped structure, and correspondingly, the edge of the first water inlet 411 of the water pumping mechanism b is provided with a mounting opening 404 which is detachably connected with the mounting shaft 403. The above structure facilitates assembling the suction nozzle 40 with the pumping mechanism b and reduces the energy loss of the water flow at the joint of the suction nozzle and the pumping mechanism b.

The side wall of the lower part of the second part 402, which is close to the water pumping mechanism b, extends outwards from top to bottom in an inclined way to form a water absorbing area 405 with gradually increased cross-sectional area, and a steady flow component 50 capable of defoaming and/or filtering water is embedded in a water inlet at the lower end of the water absorbing area 405.

As shown in fig. 12-14, the flow stabilizing assembly 50 of the present embodiment includes a flow stabilizing plate 501 and a sealing pad 502, wherein a plurality of water passing holes 5011 are formed in the flow stabilizing plate 501, water compensating ports 5012 are further formed in the flow stabilizing plate 501, and the sealing pad 502 is disposed at the front side of the flow stabilizing plate 501 and covers the water compensating ports 5012 for automatically adjusting the elastic compression amount of the sealing pad 502 relative to the water compensating ports 5012 under the impact of water flow. The aperture of the water passing hole 5011 is about 1mm, the filtering effect is mainly achieved, the water supplementing hole 5012 mainly achieves the compensation effect of water absorption flow, so that the water absorption flow is sufficient, when the water absorption force of the front end is overlarge, the rubber sealing gasket 502 is compressed, the water passing area is reduced, namely, the water passing area can be adjusted according to the water absorption pressure of the front end except the basic water passing hole, and the steady flow effect is achieved.

The total water passing area of each water passing hole 5011 is equivalent to the flow cross-sectional area of the first water inlet 411. So as to avoid the occurrence of throttling phenomenon.

In order to facilitate the installation of the sealing gasket 502, the area of the water supplementing port 5012 is larger than that of the water flowing hole 5011, a positioning column 5013 extending along the water flowing direction is arranged in the water supplementing port 5012, the sealing gasket 502 is sleeved on the periphery of the positioning column 5013, and a limiting part 5014 capable of propping against the outer side wall of the sealing gasket 502 to limit the sealing gasket to the positioning column is arranged at the end part of the positioning column 5013.

The outer peripheral wall of the steady flow plate 501 is provided with a supporting ring 5015 which is arranged around the periphery of the water supplementing port 5012, the water supplementing port 5012 is provided with a plurality of ribs 5016 which are arranged radially and protrude out of the supporting ring 5015, the sealing gasket 502 is abutted against the ribs 5016, and the height of the ribs 5016 protruding out of the supporting ring 5015 limits the elastic compression amount of the sealing gasket 502. The structure is convenient to control the water supplementing quantity in cooperation with the water flow impact force.

The outer side wall of the rib 5016 is provided with a notch 5017 which is arranged towards the water direction, and the depth of the notch 5017 is larger than the height of the retainer ring 5015 along the water flow direction. The notch 5017 has a depth of 1 to 2mm, and the gasket 502 has an elastic compression amount of 0.5 to 1mm. The outer end of the rib 5016 is connected to a backing ring 5015, a bottom ring 5018 positioned at the rear side of the rib 5016 along the water flow direction is arranged at the inner side of the backing ring 5015, and a plurality of water supplementing holes 5019 arranged along the circumferential direction are formed in the bottom ring 5018. The water supplementing holes 5019 and the water supplementing ports 5012 are matched to jointly realize water supplementing, and areas of all water supplementing areas are dispersed, so that the steady flow effect is improved.

The edge of the stabilizer 501 is provided with a sharp piece 500 with a tip arranged towards the middle of the stabilizer for puncturing bubbles, and the sharp piece 500 is arranged at the upper edge and the lower edge of the stabilizer 501 and is triangular. When foaming is caused by poor cleaning conditions (particularly, pollutants such as eggs), the large bubbles can be blasted by sharp pieces, so that the bubbles are not easy to enter a water flow system, and the stability of the cleaning process is further improved.

In the present embodiment, the pumping mechanism b includes an upper impeller 1, a lower impeller 2, an upper housing 3, a lower housing 4, and a driving member 5. The upper impeller 1 includes a first shaft 11 at the center and a plurality of first blades 12 extending in the axial direction and circumferentially spaced on the peripheral surface of the first shaft 11, and the upper part of the first blades 12 is a centrifugal blade and the lower part is an axial flow blade. The lower impeller 2 has a second shaft 21 at the center and a plurality of second blades 22 circumferentially spaced on the peripheral surface of the second shaft 21, and the second blades 22 are centrifugal blades.

The upper housing 3 has a body extending in a length direction, a first accommodating cavity 31 for installing the upper part of the first blade 12 is arranged at the central part of the body, two sides of the body are respectively provided with a runner communicated with the first accommodating cavity 31, a spray hole 32 communicated with the runner is formed on the top wall of the upper housing 3, and the upper housing 3 forms the bottom spray arm.

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

The driving piece 5 is a motor and is arranged on the outer bottom wall of the box body 6, and the output shaft 51 penetrates through the box body 6, the second water inlet 421 and the lower shell 4 from bottom to top, stretches 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 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 partitioning the second accommodating chamber 41 and the third accommodating chamber 42 into relatively independent chambers is provided 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 is conveniently supplied for lower spraying through the upper impeller 1 and water is conveniently supplied for top and/or middle spraying through the lower impeller 2, fluid disturbance among the two water tanks is reduced, and capacity loss is reduced, so that water flow lift, water flow and spraying force are improved.

The third accommodating cavity 42 is located below the partition plate 43 and has a substantially disc shape, the second water inlet 421 is formed in the center of the bottom wall of the lower housing 4, and the water outlet 422 is tangentially connected to the third accommodating cavity 42 through the guide pipe 423.

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 the inner diameter of the third accommodating cavity 42 and is adapted to the lower portion of the first blade 12. This configuration is advantageous in reducing the loss of capacity of the water flow as it passes through the second housing chamber 41.

As shown in fig. 4, 5 and 6, the top wall of the partition plate 43 is provided with a transverse n-shaped enclosing plate 431, and the enclosing plate 431 and the partition plate 43 jointly enclose a water inlet channel 432 communicated with the second accommodating cavity 41, and the outer port of the water inlet channel 432 forms the first water inlet 411. With such a structure, not only is the production and manufacture facilitated, but also the water inlet channel 432 is disposed at the bottom of the second accommodating cavity 41, which is beneficial to reducing disturbance of water flow and further reducing capacity loss of water flow when flowing through the second accommodating cavity 42.

For ease of assembly, a radially extending support plate 44 is provided on the outer peripheral wall of the upper portion of the lower housing 4, and the upper housing 3 is restrained on the support plate 44. The upper wall surface of the supporting plate 44 is provided with a collar 441, and the bottom wall of the upper housing 3 is provided with a clamping foot 33 which is rotatably arranged through the collar 441 and is clamped and limited with the bottom wall of the collar 441, so that the upper housing 3 is detachably connected to the top of the lower housing 4.

As shown in fig. 3, a third water inlet 34 corresponding to the first accommodating cavity 31 is formed on the bottom wall of the upper casing 3, and the third water inlet 34 is butted with the upper port of the second accommodating cavity 41. 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 is gradually enlarged near the upper end of the second accommodating cavity 41 to form a guide part 412 which can be smoothly transitionally connected with the inner bottom wall of the first accommodating cavity 31. This configuration is advantageous in reducing the loss of capacity during the flow of water from the second housing chamber 41 into the first housing chamber 31. The outer edge of the guide part 412 is arranged near the inner edge of the third water inlet 34, and the structure is beneficial to improving the sealing performance of the third water inlet 34 and avoiding water leakage to influence the lift of bottom spraying.

The output shaft 51 of the embodiment 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. By adopting the structure, the disassembly and assembly are convenient, after the upper shell 3 is taken down from the clamping ring 441, the nut is unscrewed, the upper impeller 1 can be taken down, and the cavities on the upper parts of the upper shell 3, the upper impeller 1 and the lower shell 4 are cleaned, so that bacteria breeding is avoided, and the cleaning effect is improved.

The water supply pipeline 7 for conveying the middle spray arm a1 and the top spray arm a2 is arranged in the box 6 of the embodiment, the input end of the water supply pipeline 7 is connected with the water outlet 422 of the lower shell 4, and the output end of the water supply pipeline 7 is respectively connected with the middle spray arm a1 and the top spray arm a 2. The water supply pipeline 7 is 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 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 lower layer, the middle layer and the top layer are sprayed, which is beneficial to improving the cleaning effect. The bottom of the box body 6 is also provided with a water diversion valve 8 for controlling whether the first branch pipeline 71 and the second branch pipeline 72 circulate or not, a water inlet of the water diversion valve 8 is connected with a water outlet 422 of the lower shell 4, a first water outlet of the water diversion valve 8 is connected with an input end of the first branch pipeline 71, and a second water outlet of the water diversion valve 8 is connected with an input end of the second branch pipeline 72. The structure is convenient for controlling the use states of the middle layer and the top layer spraying according to the needs, for example, the first branch pipeline 71 can be closed, the second branch pipeline 72 can be opened, and only the top layer spraying can be performed, and the first branch pipeline 71 can be opened, the second branch pipeline 72 can be closed, and only the middle layer spraying can be performed, so that more use needs can be met.

In the description and claims of the present invention, 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 invention, 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 invention 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.

The term "fluid communication" as used herein refers to a spatial positional relationship between two components or parts (hereinafter collectively referred to as a first part and a second part, respectively), that is, a fluid (gas, liquid, or a mixture of both) can flow along a flow path from the first part to the second part or/and be transported to the second part, or the first part and the second part may be directly communicated with each other, or the first part and the second part may be indirectly communicated with each other through at least one third party, and the third party may be a fluid channel such as a pipe, a channel, a conduit, a flow guiding member, a hole, a groove, or the like, or a chamber allowing the fluid to flow through, or a combination thereof.

Claims

1. A cleaning machine with a flow stabilization function, comprising a housing (6), wherein the bottom of the housing (6) is provided with a recessed return water area (61), the top of the return water area (61) is covered with a filter plate (62), and a pumping mechanism (b) for pumping water from the return water area (61) to above the filter plate (62) is provided in the return water area (61), characterized in that: the pumping mechanism (b) is supported at the bottom of the return water area (61), the return water area (61) is provided with a flow stabilization function, wherein the bottom of the return water area (61) is provided with a flow stabilization function, ... 1) has a recess (611) located next to the pumping mechanism (b) at the bottom. A drain outlet (610) is provided at the bottom of the recess (611). A slag collection basket (9) is provided in the recess (611). A first water inlet (411) is provided on the side of the pumping mechanism (b) corresponding to the recess (611) and the slag collection basket (9). A flow stabilizing component (50) capable of defoaming and/or filtering water is provided at the first water inlet (411).

The flow stabilizing assembly (50) includes a flow stabilizing plate (501) and a sealing gasket (502). The flow stabilizing plate (501) has multiple water passage holes (5011) for water supply. The flow stabilizing plate (501) also has a water inlet (5012). The sealing gasket (502) is located on the front side of the flow stabilizing plate (501) and covers the water inlet (5012), and is used to automatically adjust the elastic compression of the sealing gasket (502) relative to the water inlet (5012) under the impact of water flow. The total water passage surface of each water passage hole (5011) is... The cross-sectional area of the flow is equivalent to that of the first inlet (411); the outer peripheral wall of the flow stabilizer (501) is provided with a support ring (5015) arranged around the periphery of the water inlet (5012); the water inlet (5012) is provided with a plurality of radially arranged ribs (5016) protruding out of the support ring (5015); the sealing gasket (502) abuts against the ribs (5016); the height of the ribs (5016) protruding out of the support ring (5015) limits the elastic compression of the sealing gasket (502).

2. The cleaning machine with a flow stabilizing function according to claim 1, characterized in that: a suction nozzle (40) extending at least partially downward is connected to the first water inlet (411), the lower end of the suction nozzle (40) extends to the cavity (611) and is arranged corresponding to the side wall of the slag collection basket (9), and the flow stabilizing component (50) is provided at the suction end of the suction nozzle (40).

3. The cleaning machine with a flow stabilization function according to claim 2, characterized in that: the suction nozzle (40) includes a first part (401) and a second part (402) connected to each other along the water flow direction, and the first part (401) and the second part (402) together form a ︿-shaped structure, the first part (401) is inserted and connected to the first water inlet (411) of the pumping mechanism, and the second part (402) extends downward at an inclination.

4. The cleaning machine with flow stabilization function according to claim 3, characterized in that: a groove (4011) for installing a sealing ring is provided on the outer peripheral wall of the first part (401) along the circumferential direction, and in the assembled state, the sealing ring elastically presses against the outer peripheral wall of the first part (401) and the inner peripheral wall of the first water inlet (411).

5. The cleaning machine with a flow stabilization function according to claim 3, characterized in that: an installation shaft (403) located at the bend of the ︿-shaped structure is provided on the outer side wall of the suction nozzle (40), and correspondingly, an installation port (404) is provided on the edge of the first water inlet (411) of the pumping mechanism, which is detachably connected to the installation shaft (403).

6. The cleaning machine with flow stabilization function according to claim 3, characterized in that: the side wall of the lower part of the second part (402) near the pumping mechanism extends outward from top to bottom to form a water absorption area (405) with a gradually increasing cross-sectional area, and the flow stabilization component (50) is provided at the inlet of the water absorption area (405).

7. The cleaning machine with a flow stabilization function according to claim 1, characterized in that: the area of the water inlet (5012) is larger than the area of the water passage hole, a positioning post (5013) extending along the water flow direction is provided in the water inlet (5012), the sealing gasket (502) is sleeved on the outer periphery of the positioning post (5013), and the end of the positioning post (5013) is provided with a limiting part (5014) that can abut against the outer side wall of the sealing gasket (502) to constrain it on the positioning post (5013).

8. The cleaning machine with a flow stabilization function according to claim 1, characterized in that: a notch (5017) is provided on the outer wall of the rib (5016) facing the direction of incoming water, and the depth of the notch is greater than the height of the support ring (5015) along the direction of water flow.

9. The cleaning machine with flow stabilization function according to claim 8, characterized in that: the depth of the notch (5017) is 1~2 mm, and the elastic compression of the sealing gasket (502) is 0.5~1 mm.

10. The cleaning machine with a flow stabilizing function according to claim 9, characterized in that: the outer end of the rib (5016) is connected to the support ring (5015), and the inner side of the support ring (5015) is provided with a bottom ring (5018) located behind the rib (5016) along the water flow direction, and the bottom ring (5018) has a plurality of water replenishment holes (5019) arranged circumferentially.

11. The cleaning machine with flow stabilization function according to claim 1, characterized in that: a sharp member (500) with its tip facing the center of the flow stabilization plate (501) is provided at the edge of the flow stabilization plate (501) for puncturing air bubbles.

12. The cleaning machine according to any one of claims 1 to 11, characterized in that: the housing (6) is provided with a bottom spray arm, a middle spray arm (a1) and a top spray arm (a2), the bottom spray arm is used to spray water upward, the middle spray arm (a1) is located above the bottom spray arm and is used to spray water into the area above the bottom spray arm, the top spray arm (a2) is located above the middle spray arm (a1) and is used to spray water into the area above or to the side of the top spray arm (a2), and the output end of the pumping mechanism is connected to the bottom spray arm, the middle spray arm (a1) and/or the top spray arm (a2) respectively to provide them with water supply power.

13. The cleaning machine according to claim 12, characterized in that: the water pumping mechanism (b) comprises:

The upper impeller (1) has a first shaft (11) located at the center and first blades (12) that are circumferentially spaced and extend axially on the circumferential surface of the first shaft (11);

The lower impeller (2) has a second shaft (21) located at the center and second blades (22) spaced circumferentially on the circumferential surface of the second shaft (21);

The upper housing (3) has a first receiving cavity (31) for mounting the upper part of the first blade (12), and the top wall and/or side wall of the upper housing (3) have spray holes (32) in fluid communication with the first receiving cavity (31), the upper housing (3) constituting the bottom spray arm; and

The lower housing (4) is connected below the upper housing (3). The upper part of the lower housing (4) has a second accommodating cavity (41) for installing the lower part of the first blade (12). The second accommodating cavity (41) is connected to the first accommodating cavity. The side wall of the lower housing (4) has a first water inlet (411) for supplying water into the second accommodating cavity (41). The lower part of the lower housing (4) has a third accommodating cavity (42) for installing the lower impeller (2). The side wall and/or bottom wall of the lower housing (4) have a second water inlet (421) for supplying water into the third accommodating cavity (42) and a water outlet (422) for outputting water from the third accommodating cavity (42).

14. The cleaning machine according to claim 13, characterized in that: a partition (43) is provided in the middle of the lower housing (4) for separating the second accommodating cavity (41) and the third accommodating cavity (42) into relatively independent cavities.

15. The cleaning machine according to claim 14, characterized in that: the third accommodating cavity (42) is located below the partition plate (43) and is generally in the shape of a disc, the second water inlet (421) is opened on the bottom wall of the lower housing (4), and the water outlet (422) is opened on the side wall of the lower housing (4) and is tangentially connected to the third accommodating cavity (42) through a guide pipe (423).

16. The cleaning machine according to claim 15, characterized in that: the second accommodating cavity (41) is located above the partition (43) and extends vertically, the inner diameter of the second accommodating cavity (41) is smaller than the inner diameter of the third accommodating cavity (42) and is adapted to the lower part of the first blade (12).

17. The cleaning machine according to claim 13, characterized in that: a support plate (44) extending radially is provided on the outer peripheral wall of the upper part of the lower housing (4), and the upper housing (3) is constrained on the support plate (44).

18. The cleaning machine according to claim 17, characterized in that: a retaining ring (441) is provided on the upper wall of the support plate (44), and a retaining foot (33) is provided on the bottom wall of the upper housing (3) to be rotatably arranged through the retaining ring (441) and to be engaged and limited with the bottom wall of the retaining ring (441).

19. The cleaning machine according to claim 13, characterized in that: a third water inlet (34) corresponding to the first accommodating cavity (31) is opened on the bottom wall of the upper housing (3), and the third water inlet (34) is connected to the upper port of the second accommodating cavity (41).

20. The cleaning machine according to claim 19, characterized in that: the diameter of the third water inlet (34) is greater than the inner diameter of the second accommodating cavity (41), the upper part of the lower housing (4) gradually expands its inner diameter near the upper end of the second accommodating cavity (41) to form a guide part (412) that can smoothly transition and connect with the inner bottom wall of the first accommodating cavity (31), and the outer edge of the guide part (412) is arranged near the inner edge of the third water inlet (34).

21. The cleaning machine according to claim 13, characterized in that: the pumping mechanism further includes a driving member (5) for driving the upper impeller (1) and the lower impeller (2) to rotate, the driving member (5) is disposed on the outer bottom wall of the housing and the output shaft (51) is arranged upward, the output shaft (51) passes through the bottom wall of the housing and the lower housing (4) from bottom to top and extends into the first accommodating cavity (31) of the upper housing (3) and is respectively connected to the lower impeller (2) and the upper impeller (1).

22. The cleaning machine according to claim 21, characterized in that: the output shaft (51) is radially limited to the upper impeller (1) and the lower impeller (2) respectively, and a nut is provided at the upper end of the output shaft (51) to prevent the upper impeller (1) from moving axially along the output shaft (51).

23. The cleaning machine according to claim 13, characterized in that: the housing (6) is provided with a water supply pipe (7) for conveying water to the middle spray arm (a1) and the top spray arm (a2), the input end of the water supply pipe is connected to the water outlet (422) of the lower housing (4), and the output end of the water supply pipe (7) is connected to the middle spray arm (a1) and the top spray arm (a2) respectively.

24. The cleaning machine according to claim 23, characterized in that: the middle part of the box (6) is provided with a partition that can divide its inner cavity into an upper cavity and a lower cavity that are relatively independent, the bottom spray arm is located at the bottom of the lower cavity, the middle spray arm (a1) is located in the middle or upper part of the lower cavity, and the top spray arm (a2) is located in the upper cavity.

25. The cleaning machine according to claim 24, characterized in that: the top spray arm (a2) includes a first spray arm (a21) extending from the water supply pipe (7) to the middle of the box (6) and a second spray arm (a22) arranged above the first spray arm (a21) and close to the inner wall of the box (6), the first spray arm (a21) is located at the bottom of the upper cavity and is used to spray water upward, and the second spray arm (a22) is located in the middle or upper part of the upper cavity and is used to spray water to the area above the first spray arm (a21).