CN114680769A - Cleaning machine - Google Patents

Abstract

The invention relates to a cleaning machine which comprises a box body, wherein a concave draining area is arranged at the bottom of the box body, a draining plate covers the top of the draining area, a water pumping mechanism for pumping water from the draining area to the position above the draining plate is arranged in the draining area, the water pumping mechanism is supported at the bottom of the draining area, a concave cavity is arranged at the side of the water pumping mechanism at the bottom of the draining area, a water outlet is formed in the bottom of the concave cavity, a slag collecting basket is arranged in the concave cavity, and a first water inlet arranged corresponding to the concave cavity and the slag collecting basket is formed in the side part of the water pumping mechanism. The concave cavity is positioned at the lowest part of the draining area, and the slag basket is arranged at the position, so that the slag collecting effect can be improved, and the waste water can be discharged completely; the cavity reduces the water absorption level, so that air bubbles can be prevented from being absorbed, and the lift is increased; first water inlet is at the in-process of intaking, can increase the rivers velocity of flow of collection sediment basket lateral wall department to draw in the residue firmly in collection sediment basket, avoid the residue to escape, can also wash collection sediment basket lateral wall, improve sediment basket cleanliness.

Description

Cleaning machine

Technical Field

The invention relates to a cleaning machine for cleaning dishes, fruits and vegetables.

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, Chinese patent application publication No. CN106859563A, entitled "energy saving dishwasher" (application No. CN201611232345.5), discloses a structure including a chamber for receiving dishes and providing a washing space, a spray system for spraying water to wash the dishes, 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 both 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 low 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.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide a cleaning machine which is beneficial to improving the slag collecting effect and keeping the slag basket clean, aiming at the current situation of the prior art.

The second technical problem to be solved by the invention is to provide a cleaning machine which can respectively provide power for two paths of washing water so as to improve the lift and the water flow rate and further improve the cleaning effect, aiming at the current situation of the prior art.

The technical scheme adopted by the invention for solving at least one technical problem is as follows: the utility model provides a cleaning machine, includes the box, and this bottom half is provided with recessed waterlogging caused by excessive rainfall region, and the top in this waterlogging caused by excessive rainfall region covers there is the waterlogging caused by excessive rainfall board, be provided with in the waterlogging caused by excessive rainfall region and be used for pumping mechanism from the regional pump to waterlogging caused by excessive rainfall board top, pumping mechanism supports in the regional bottom of waterlogging caused by excessive rainfall, the regional bottom of waterlogging caused by excessive rainfall is provided with the cavity that is located pumping mechanism side, and the outlet has been seted up to the bottom of this cavity, is provided with collection sediment basket in this cavity, the lateral part of pumping mechanism is opened has corresponding cavity and the first water inlet that collection sediment basket was arranged.

Preferably, the first water inlet is connected with a suction nozzle extending obliquely downwards, and the lower end of the suction nozzle extends into the concave cavity and is arranged corresponding to the side wall of the slag collecting basket. The suction nozzle is arranged, so that the water suction port is greatly reduced, bubbles are isolated above the water inlet, the bubbles can be prevented from being sucked, and the higher lift is kept; the suction nozzle lower extreme corresponds collection sediment basket lateral wall and arranges, when absorbing water, can mention the rivers velocity of flow of collection sediment basket department, not only be favorable to drawing in the residue in collection sediment basket, can also wash collection sediment basket lateral wall, avoid the residue to accumulate on collection sediment basket, and simultaneously, the height ratio drop board height of collection sediment basket upper port is 2 ~ 3mm, under the circumstances that the rivers velocity of flow of collection sediment basket department increases, the rivers velocity of flow can slow down relatively on the drop board, can not only avoid the residue to accumulate on the drop board, and can avoid the rivers velocity of flow too big and lead to the dribbling hole on the tiny residue jam drop board.

Preferably, a second water inlet is formed in the bottom wall of the water pumping mechanism, the upper end of the suction nozzle is connected with the first water inlet, the second end of the suction nozzle extends downwards to the position near the bottom of the water pumping mechanism, and the suction nozzle forms a semi-surrounding structure with an inward opening on the outer side of the water pumping mechanism. The structure is favorable for guiding the inlet water and reducing energy loss.

Preferably, the cross section of the suction nozzle is of a U-shaped structure, the transverse part of the U-shaped structure extends downwards from the top edge of the first water inlet, the two vertical parts of the U-shaped structure are respectively positioned at the two sides of the first water inlet, and the distance between the lower part of the suction nozzle and the outer side wall of the water pumping mechanism is gradually increased from top to bottom to form a water absorption area. The water sucking region is not only favorable for guiding water in the cavity to the first water inlet, but also favorable for guiding the water in the cavity to the second water inlet due to the fact that the water sucking region is located beside the second water inlet, so that energy loss is avoided, and the water pumping effect with large flow rate and large flow velocity is realized.

For convenience of assembly, the water pumping mechanism is provided with a water inlet channel extending transversely, and an outer port of the water inlet channel forms the first water inlet; the outer edge department of suction nozzle is provided with the overlap edge that can the overlap joint on the outer terminal surface of inhalant canal, be provided with the bulge card on the outer wall of inhalant canal, open the bayonet socket that has the detachable connection of ability and this bulge card on the overlap edge.

Preferably, the lower edge of the outer port of the water inlet channel is provided with a pin extending outwards, correspondingly, the side part of the suction nozzle is provided with a socket in plug-fit connection with the pin, and in the assembled state, the pin is positioned on the inner side of the lap edge. This structure is favorable to improving the assembly stability.

In the invention, the box body is provided with a bottom spray arm, a middle spray arm and a top spray arm, the bottom spray arm is used for spraying water flow upwards, the middle spray arm is arranged above the bottom spray arm and used for spraying water flow to the area above the bottom spray arm, the top spray arm is arranged above the middle spray arm and used for spraying water flow to the area above or below 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 can be eliminated, and the cleaning effect can be improved.

In the above aspect, the water pumping mechanism 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.

The water pumping mechanism is an open type double-pump system, wherein the second accommodating cavity, the first accommodating cavity and the upper impeller which are positioned at the upper part supply water for spraying from the bottom, and the third accommodating cavity and the lower impeller which are positioned at the lower part supply water for spraying from the top and/or the middle part, and because the power of the two paths of water flow is independently supplied by the corresponding pumps, the lift and the water flow of each path of water flow are improved, and the cleaning effect is favorably improved; the double-pump system is convenient to disassemble and assemble, the upper shell is disassembled from the lower shell, the upper impeller and the lower shell can be cleaned, and bacteria are prevented from breeding.

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, 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, and the outer edge of the guide part is arranged close to the inner edge of the third water inlet. 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.

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

In each of the above schemes, the water pumping mechanism further includes a driving member for driving the upper impeller and the lower impeller to rotate, the driving member is disposed on the outer bottom wall of the box body, the output shaft is arranged upward, the output shaft penetrates through the bottom wall of the box body from bottom to top, the lower housing extends into the first accommodating cavity of the upper housing, 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. Adopt above-mentioned structure, the dismouting of being convenient for is taking off last casing from the rand after, unscrews the nut, can take off last impeller, washs last casing, last impeller, the cavity on lower casing upper portion to avoid bacterial growing, improve the cleaning performance.

Preferably, be provided with the water supply pipe who carries for middle part spray arm and top spray arm in the box, this water supply pipe's input is connected with the delivery port of casing down, and this water supply pipe's output is connected with middle part spray arm and top spray arm respectively.

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.

Compared with the prior art, the invention has the advantages that: according to the invention, the concave cavity located beside the water pumping mechanism is arranged at the bottom of the draining area, the water outlet is formed in the bottom of the concave cavity, the slag collecting basket is arranged in the concave cavity, the first water inlet arranged corresponding to the concave cavity and the slag collecting basket is formed in the side part of the water pumping mechanism, the concave cavity is located at the lowest position of the draining area, and the slag basket is arranged at the position, so that the slag collecting effect can be improved, and the waste water can be drained completely; the cavity reduces the water absorption level, so that air bubbles can be prevented from being absorbed, and the lift is increased; first water inlet is at the in-process of intaking, can increase the rivers velocity of flow of collection sediment basket lateral wall department to draw in the residue firmly in collection sediment basket, avoid the residue to escape, can also wash collection sediment basket lateral wall, improve sediment basket cleanliness.

Drawings

FIG. 1 is a schematic structural diagram of a water pumping mechanism in 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 water pumping mechanism according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a lower housing according to 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 the lower housing in an embodiment of the present invention;

FIG. 7 is a schematic structural diagram 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 an enlarged view of a portion of FIG. 8;

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

FIG. 11 is a schematic bottom view of FIG. 10;

fig. 12 is an exploded view of fig. 10.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 12, the cleaning machine of the present embodiment includes a tank 6, a spraying device a, and a water pumping mechanism b.

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 area above 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 area above or on the side of the top spraying arm a 2.

The bottom of the tank 6 is provided with a recessed draining area 61, and the top of the draining area 61 is covered with a draining plate 62.

The water pumping mechanism b is installed at the draining area 61, and pumps water from the draining area 61 into the shower device a and sprays it.

Specifically, the pumping mechanism b is supported at the bottom of the draining area 61 with a space therebetween, and the water supply flow passes through. The bottom of the draining area 61 is provided with a cavity 611 located at the side of 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 arranged corresponding to the cavity 611 and the slag collecting basket 9.

The first water inlet 411 is connected with a suction nozzle 40 extending obliquely downwards, and the lower end of the suction nozzle 40 extends into the cavity 611 and is arranged corresponding to the side wall of the slag collecting basket 9. The suction nozzle 40 is arranged to greatly reduce the water suction port and isolate bubbles above the water inlet, so that the bubbles can be prevented from being sucked, and a higher lift is kept; the corresponding collection sediment basket 9 lateral wall of 40 lower extremes of suction nozzle is arranged, when absorbing water, can carry the rivers velocity of flow of collection sediment basket 9 department, not only be favorable to drawing in the residue in collection sediment basket 9, can also wash collection sediment basket 9 lateral wall, avoid the residue to accumulate on collection sediment basket 9, and simultaneously, the height ratio drop board 62 height of port is 2 ~ 3mm on collection sediment basket 9, under the condition of the increase of the rivers velocity of flow of collection sediment basket 9 department, the rivers velocity of flow can slow down relatively on the drop board 62, can not only avoid the residue to accumulate on the drop board 62, and can avoid the rivers velocity of flow too big and lead to tiny residue to block up the waterlogging caused by excessive rainfall hole on the drop board 62, with keep higher return water speed.

The bottom wall of the water 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, the second end of the suction nozzle 40 extends downwards to the vicinity of the bottom of the water pumping mechanism b, and the suction nozzle 40 forms a semi-surrounding structure with an inward opening at the outer side of the water pumping mechanism b. The cross section of the suction nozzle 40 is in a U-shaped structure, a transverse part 401 of the U-shaped structure extends downwards from the top edge of the first water inlet 411, two vertical parts 402 of the U-shaped structure are respectively positioned at two sides of the first water inlet 411, and the distance between the lower part of the suction nozzle 40 and the outer side wall of the water pumping mechanism b is gradually increased from top to bottom to form a water absorbing area 400. The water suction area 400 is not only beneficial to guiding the water in the cavity 611 to the first water inlet 411, but also beneficial to guiding the water in the cavity 611 to the second water inlet 421 because the water suction area 61 is located beside the second water inlet 421, thereby avoiding energy loss and realizing the water pumping effect with large flow rate and large flow velocity.

The water pumping mechanism b is provided with a water inlet channel 432 extending transversely, and the outer port of the water inlet channel 432 forms the first water inlet 411; the outer edge of the suction nozzle 40 is provided with a lapping edge 403 which can lap joint the outer end face of the water inlet channel 432, the outer wall of the water inlet channel 432 is provided with a convex card 4321, and the lapping edge 403 is provided with a bayonet 404 which can be detachably connected with the convex card 4321. At the lower edge of the outer port of the water inlet passage 432, a pin 4322 extending outward is provided, and accordingly, the side of the suction nozzle 40 is provided with a socket 405 to which the pin 4322 is inserted, and in the assembled state, the pin 4322 is located inside the overlapping edge 403. This structure is favorable to improving the assembly stability.

In the present embodiment, the water 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 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 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 to extend 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 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 manufacturing are convenient, the water inlet channel 432 is arranged at the bottom of the second accommodating cavity 41, the water flow disturbance 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 corresponding to the first accommodating chamber 31 is formed on the bottom wall of the upper housing 3, and the third water inlet 34 is butted with 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 beneficial to reducing the capacity loss of water flow in the process of entering the first accommodating cavity 31 from the second accommodating cavity 41. The outer edge of the guiding part 412 is arranged close to the inner edge of the third water inlet 34, and the structure is beneficial to improving the sealing performance at the third water inlet 34 and avoiding the influence of water flow leakage on the lift of bottom spraying.

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.

The box 6 of this embodiment is provided with a water supply pipeline 7 for conveying the middle spray arm a1 and the top spray arm a2, 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 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 body 6 is further provided with a shunt valve 8 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 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 states of the middle-layer spraying and the top-layer spraying according to requirements, 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.

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 invention, but are used herein for convenience of description only and are to be determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the present invention may be oriented in different directions, the directional terms are used for descriptive purposes and are not to be construed as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or coincident 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, respectively), i.e., a fluid (gas, liquid or a mixture of both) can flow along a flow path from the first portion and/or be transported to the second portion, and may be a direct communication between the first portion and the second portion, or an indirect communication between the first portion and the second portion via at least one third element, such as a fluid channel, e.g., a pipe, a channel, a duct, a flow guide, a hole, a groove, or a chamber that allows a fluid to flow through, or a combination thereof.

Claims (20)

1. A cleaning machine comprising a tank (6), a concave draining area (61) arranged at the bottom of the tank (6), a draining plate (62) covering the top of the draining area (61), a pumping mechanism (b) arranged in the draining area (61) for pumping water from the draining area (61) to the position above the draining plate (62), characterized in that: the water pumping mechanism (b) is supported at the bottom of the draining area (61), a concave cavity (611) located beside the water pumping mechanism (b) is arranged at the bottom of the draining area (61), a water outlet (610) is formed in the bottom of the concave cavity (611), a slag collecting basket (9) is arranged in the concave cavity (611), and a first water inlet (411) corresponding to the concave cavity (611) and the slag collecting basket (9) is formed in the side portion of the water pumping mechanism (b).

2. The cleaning machine of claim 1, wherein: the first water inlet (411) is connected with a suction nozzle (40) extending obliquely downwards, the lower end of the suction nozzle (40) extends into the concave cavity (611) and is arranged corresponding to the side wall of the slag collecting basket (9).

3. The cleaning machine of claim 2, wherein: open on the diapire of pump water mechanism (b) has second water inlet (421), suction nozzle (40) upper end is connected with first water inlet (411), the second end downwardly extending of suction nozzle (40) is near the bottom of pump water mechanism (b), just suction nozzle (40) forms the half surrounding structure of opening inwards in the outside of pump water mechanism (b).

4. The cleaning machine of claim 3, wherein: the cross section of the suction nozzle (40) is of a U-shaped structure, the transverse part (401) of the U-shaped structure extends downwards from the top edge of the first water inlet (411), the two vertical parts (402) of the U-shaped structure are respectively positioned on the two sides of the first water inlet (411), and the distance between the lower part of the suction nozzle (40) and the outer side wall of the water pumping mechanism (b) is gradually increased from top to bottom to form a water absorption area (400).

5. The cleaning machine of claim 2, wherein: the water pumping mechanism (b) is provided with a transversely extending water inlet channel (432), and the outer port of the water inlet channel (432) forms the first water inlet (411); the outer edge of suction nozzle (40) department is provided with overlap edge (403) that can the overlap joint on inhalant canal (432) outer terminal surface, be provided with protruding card (4321) on the outer wall of inhalant canal (432), open on overlap edge (403) and have bayonet socket (404) that can shirk the formula and be connected with this protruding card (4321).

6. The cleaning machine of claim 5, wherein: the lower edge of the outer port of the water inlet channel (432) is provided with a pin (4322) extending outwards, correspondingly, the side of the suction nozzle (40) is provided with a socket (405) which is inserted and connected with the pin (4322), and in the assembled state, the pin (4322) is positioned at the inner side of the lap edge (403).

7. The cleaning machine of any one of claims 1-6, wherein: be provided with bottom spray arm, middle part spray arm (a1) and top spray arm (a2) in box (6), the bottom spray arm is used for upwards spraying rivers, the side top of bottom spray arm is located in middle part spray arm (a1), is used for regional spraying rivers to the top of bottom spray arm, the top spray arm (a2) is located the top of middle part spray arm (a1), is used for spraying rivers to the top or the side region of top spray arm (a2), thereby the output of pump water mechanism is connected with bottom spray arm, middle part spray arm (a1) and/or top spray arm (a2) respectively and provides defeated water power for it.

8. The cleaning machine of claim 7, wherein: the water pumping mechanism (b) includes:

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 containing 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 containing cavity (41) is communicated with the first containing cavity, a first water inlet (411) used for enabling water to enter the second containing cavity (41) is formed in the side wall of the lower shell (4), a third containing 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 enabling water to enter the third containing cavity (42) and a water outlet (422) output from the third containing cavity (42) are formed in the side wall and/or the bottom wall of the lower shell (4).

9. The cleaning machine of claim 8, 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).

10. The cleaning machine of claim 9, 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).

11. The cleaning machine of claim 9, 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).

12. The cleaning machine of claim 8, 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).

13. The cleaning machine of claim 12, 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).

14. The cleaning machine of claim 8, 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).

15. The cleaning machine of claim 14, wherein: the diameter of the third water inlet (34) is larger than the inner diameter of the second accommodating cavity (41), 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), and the outer edge of the guide part (412) is arranged close to the inner edge of the third water inlet (34).

16. The cleaning machine of claim 8, wherein: the water pumping mechanism further comprises a driving piece (5) for driving the upper impeller (1) and the lower impeller (2) to rotate, the driving piece (5) is arranged on the outer bottom wall of the box body, the output shaft (51) is arranged upwards, the output shaft (51) penetrates through the bottom wall of the box body from bottom to top, the lower shell (4) extends 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.

17. The cleaning machine of claim 16, 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).

18. The cleaning machine of claim 8, wherein: the water supply device is characterized in that a water supply pipeline (7) which is used for conveying a middle spraying arm (a1) and a top spraying arm (a2) is arranged in the box body (6), the input end of the water supply pipeline is connected with a water outlet (422) of the lower shell (4), and the output end of the water supply pipeline (7) is respectively connected with the middle spraying arm (a1) and the top spraying arm (a 2).

19. The cleaning machine of claim 18, 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.

20. The cleaning machine of claim 19, wherein: 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 spraying water upwards, 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).

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