CN114343535A - Cleaning machine - Google Patents

Abstract

The invention relates to a cleaning machine, which comprises a cleaning box, wherein a cleaning chamber is arranged in the cleaning box; a spray member disposed in an upper region within the washing chamber; the spraying arm is arranged on the side wall of the washing chamber, a flow channel is arranged in the spraying arm, and a first spraying hole communicated with the flow channel is formed in the spraying arm; the top of the spraying piece is provided with a water containing cavity which is downwards sunken and used for bearing water, the spraying piece is provided with a first water outlet hole which is communicated with the water containing cavity and sprays downwards, and the water containing cavity is positioned on a water flow path of water flow sprayed out of the first spraying hole. The spraying part and the spraying arm can supply water to the water containing cavity of the spraying part without arranging an entity pipeline, thereby playing the role of an air water channel and saving the structural complexity caused by arranging the pipeline.

Description

Cleaning machine

Technical Field

The invention belongs to the field of household appliances, and particularly relates to a cleaning machine.

Background

A washing machine is an apparatus that sprays cold or hot water to dishes to remove dirt adhered to the dishes or fruits and vegetables and wash the dishes or fruits and vegetables. The existing spray type cleaning machine generally realizes the spraying in various directions through the rotation of a sprayer.

The present dishwasher, as a chinese invention patent "a sink dishwasher with a spray ball structure", whose patent number is zl201811487431.x (publication number is CN109464090B), discloses a sink dishwasher with a spray ball structure, which includes a sink, a door, a pipeline assembly, and a spray assembly, where the sink is adapted to the door, the spray assembly includes a spray arm disposed on the bottom surface of the sink and a rotary spray ball assembly disposed on the door, the spray arm and the rotary spray ball assembly are both communicated with the pipeline assembly, the rotary spray ball assembly includes a spray ball and a connection pipe, the door is provided with a first through hole, the door is provided with a chuck, the connection pipe passes through the chuck from above the door and connects with the spray ball, and the connection pipe can move up and down relative to the door. Spray the washing of spheroid realization to the kitchen utensils and appliances in the dish washer through setting up at the top, however, when realizing the top and spraying, need directly supply water to spraying the spheroid through extra pipeline and then drive and spray the spheroid and rotate, increased the loaded down with trivial details nature that the pipeline design brought and to occuping of space.

Accordingly, further improvements to existing cleaning machines are needed.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide a cleaning machine which can supply water to the top spraying part without additional pipelines in view of 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 drive a top spraying part to rotate without an additional pipeline so as to achieve the purpose of top spraying

The third technical problem to be solved by the invention is to provide a cleaning machine for cleaning the lower surface of the door body.

The fourth technical problem to be solved by the invention is to provide the cleaning machine for preventing the spray piece from being blocked.

The fifth technical problem to be solved by the invention is to provide the cleaning machine which can prevent the garbage in the spraying piece from flowing into the washing chamber when the door is opened.

The technical scheme adopted by the invention for solving the first technical problem is as follows: a cleaning machine comprising:

a washing tank having a washing chamber therein;

a spray member disposed in an upper region within the washing chamber;

the spraying arm is arranged on the side wall of the washing chamber, a flow channel is arranged in the spraying arm, and a first spraying hole communicated with the flow channel is formed in the spraying arm;

the method is characterized in that: the top of the spraying piece is provided with a water containing cavity which is downwards sunken and used for bearing water, the spraying piece is provided with a first water outlet hole which is communicated with the water containing cavity and sprays downwards, and the water containing cavity is positioned on a water flow path of water flow sprayed out of the first spraying hole.

The water containing cavity of the spraying piece can be positioned above the first spraying hole, and the first spraying hole sprays upwards at the moment.

In order to drive the spraying piece to rotate, the number of the first water outlet holes is at least two, the first water outlet holes are arranged at intervals along the circumferential direction of the spraying piece, and the water outlet direction of the first water outlet holes forms an acute angle with the vertical direction, so that the water outlet directions of all the first water outlet holes are arranged in a clockwise or anticlockwise rotating direction on the whole. The play water direction of aforementioned first apopore orders about it washs the case rotation relatively to spray the piece, the rotation direction that sprays the piece is opposite with the whole rotation direction of all first apopores.

In order to reliably realize the rotation of the spraying piece, the spraying piece is provided with at least two groups of first water outlet groups which are arranged at intervals along the circumferential direction of the spraying piece, each group of first water outlet groups is provided with at least two first water outlet holes which are arranged at intervals from inside to outside, and the water outlet directions of all the first water outlet groups are arranged in a clockwise or anticlockwise spiral direction on the whole.

The blade is impacted in order further to drive through first apopore spun rivers and sprays a rotation, the bottom surface that sprays a is being located and is being provided with downwardly extending's blade between two sets of adjacent first play water groups, the blade extends along the direction of arranging of corresponding first apopore in the first play water group.

In order to reliably drive the spraying piece to rotate and expand the spraying range, the blades are in an arc shape which is gradually bent from inside to outside in a direction opposite to the rotating direction of the spraying piece. Thus, the cleaning effect is improved.

Preferably, the number of the blades is at least two, the blades are arranged along the circumferential direction of the spraying piece at intervals, and the blades form acute included angles in the circumferential direction or the vertical direction of the spraying piece, so that all the blades are integrally arranged in a clockwise or anticlockwise rotating direction, and the rotating direction of the blades is opposite to the integral rotating direction of the water outlet direction of the first water outlet hole. So, the impact that rivers were received to the blade drives and sprays the body and rotate to aforementioned first apopore is unanimous with the blade to the driving force that sprays the piece, is favorable to spraying the steady rotation of piece.

The spray member may be disc-shaped, also oval, also cup-shaped, or other shapes, but preferably the spray member is disc-shaped as a whole.

The spraying part has various structural forms, can adopt the overall shape of a concave lens, and also can adopt the structural form, but preferably, the spraying part comprises a flat bottom plate and an inclined plate which gradually inclines outwards from the periphery of the bottom plate from bottom to top, the bottom plate and the inclined plate enclose to form the water containing cavity, and the first water outlet is positioned on the inclined plate.

In order to clean the middle area, the bottom plate is provided with at least two groups of second water outlet groups which are arranged at intervals along the circumferential direction, and each group of second water outlet groups is provided with at least one second water outlet hole.

The technical scheme adopted by the invention for solving the second technical problem is as follows: the spraying arm is provided with a second spraying hole for pushing the spraying piece to rotate towards the wall plate of the spraying piece, the second spraying hole is communicated with the flow channel, and the spraying piece is positioned in the spraying direction of the second spraying hole.

The spray arms can be arranged transversely or vertically, but preferably, the spray arms are arranged transversely, two groups of the second spray holes are arranged at intervals along the length direction of the spray arms, and the first spray hole is positioned between the two groups of the second spray holes.

Preferably, the wall plate of the spray arm facing the spray member has an inclined portion gradually inclined inward from top to bottom, and the first spray hole and the second spray hole are located on the inclined portion.

In order to clean the inner side wall of the washing chamber, the spray arm is provided with a third spray hole for cleaning the inner side wall of the washing chamber except for the first side wall where the spray arm is located, and the third spray hole is located below the first spray hole.

The washing chamber and the side wall that the first side wall is adjacent to be arranged are the second side wall, the third sprays the hole and sets up in groups, and has at least two sets of length direction interval arrangement along spraying the arm, in every group have one at least the third spray the hole, the jet direction of every group third spray the hole towards respectively adjacent second side wall. So, realized clearing up the second lateral wall of washing chamber and the junction of first lateral wall and second lateral wall, prevented to appear spraying the dead angle.

In order to realize the up-and-down cross spraying cleaning, a spraying body is arranged on the position of the washing cavity, which is close to the bottom, a water flow channel is arranged inside the spraying body, the spraying body is provided with water spraying holes which spray upwards, and the water spraying holes are communicated with the water flow channel.

In order to supply water to the spraying piece and the spraying body, the bottom of the washing cavity is at least provided with a draining cavity which is sunken downwards in the central part, the draining cavity is covered with a draining plate with draining holes, the spraying body can be rotatably arranged on the draining plate and is locally positioned on the draining plate, and the water inlet channel of the spraying body and the water inlet of the spraying arm are communicated with the draining cavity in a fluid mode.

The technical scheme adopted by the invention for solving the third technical problem is as follows: the washing case is in including having the open box in top and covering the door body of the open department in box top, enclose between box and the door body and close and be formed with the washing chamber, the position that sprays the adjacent central authorities of piece sets up on the lower surface of the door body, hold the water cavity and be located under the door body, and be located on the first hole that sprays, along the first hole spun rivers flow path that sprays, the door body is located the upper reaches of holding the water cavity.

The door body and the installation mode that sprays the piece have a plurality of, but preferably, the lower surface of the door body is provided with the mount pad, the position that sprays the piece and is close to central authorities has seted up the mounting hole, be provided with the connecting piece in the mounting hole, the connecting piece with match between the internal perisporium of mounting hole and be provided with looks normal running fit's convex part and recess, the recess extends along circumference, the outer wall of connecting piece is provided with the side direction and extends and be located the flange on the mounting hole, the mount pad has the confession the flange is spacing in the storage tank therein. So, realized spraying the piece and be connected with the rotation of the door body.

The technical scheme adopted by the invention for solving the fourth technical problem is as follows: the spraying part is relatively fixed with a filter screen, the filter screen covers the spraying part and is positioned below the door body in a door closing state, and the filter screen is positioned between the door body and the water containing cavity along a water flow path sprayed from the first spraying holes.

In order to guide the flow of the residues washed from the door body conveniently, the lower surface of the door body is an inclined surface which gradually inclines upwards from the connection part of the door body and the spraying piece to the outside.

The technical solution adopted to solve the fifth technical problem of the present invention is: the rear side edge of the door body can be rotatably arranged at the corresponding edge of the opening at the top of the box body, the lower surface of the door body is provided with a slag collecting cup used for collecting residues, a gap is reserved between the filter screen and the door body, and the inner cavity of the slag collecting cup is positioned below the gap when the door is opened.

In order to facilitate timely cleaning of the slag collecting cup, the slag collecting cup can be detachably mounted on the lower surface of the door body.

Compared with the prior art, the invention has the advantages that: the top of the spraying piece of the cleaning machine is provided with a water containing cavity which is sunken downwards, the spraying arm is provided with a first spraying hole which can supply water to the water containing cavity, the water containing cavity is positioned on a spraying path of the first spraying hole, so that the water can be supplied to the water containing cavity of the spraying piece without arranging an entity pipeline between the spraying piece and the spraying arm, the effect of an air water channel is achieved, and the structural complexity caused by arranging the pipeline is saved.

Drawings

FIG. 1 is a sectional view of the cleaning machine of the present embodiment in a closed door state;

FIG. 2 is a schematic structural diagram of the cleaning machine in the present embodiment in the door-open state;

FIG. 3 is a cross-sectional view of FIG. 2;

FIG. 4 is a sectional view showing a part of the structure of the cleaning machine in this embodiment;

FIG. 5 is a schematic view of an assembly structure of the spray member and the filter screen;

FIG. 6 is a schematic view of the structure of FIG. 5 at another angle;

fig. 7 is a schematic structural view of the spray arm.

Detailed Description

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

As shown in fig. 1 to 4, the cleaning machine of the present embodiment includes a cleaning tank 1, a spraying member 2, a spraying arm 3, a spraying body 4, a water pumping assembly 8, a filter screen 6 and a sludge collecting cup 7.

As shown in fig. 1 to 3, the washing tank 1 includes a tank body 11 and a door body 12, the tank body 11 has a top opening, and a rear side edge of the door body 12 is rotatably disposed at a corresponding edge of the top opening of the tank body 11 to open or close the top opening of the tank body 11. A washing chamber 100 is defined between the cabinet 11 and the door 12. The above-mentioned shower member 2 is rotatably provided on the lower surface of the door body 12 at a position adjacent to the center, and the shower member 2 is provided in the upper region of the washing chamber 100. In order to realize the installation of the spraying body 2, the lower surface of the door body 12 is provided with the installation seat 5, the installation hole 23 is opened on the position of the spraying piece 2 adjacent to the center, the connecting piece 24 is arranged in the installation hole 23, the convex part 231 and the groove 241 which are matched and matched with each other are arranged between the connecting piece 24 and the inner peripheral wall of the installation hole 23 in a matching manner, in the embodiment, the groove 241 is opened on the outer peripheral wall of the connecting piece 24 and extends along the circumferential direction, and the convex part 231 is arranged on the inner peripheral wall of the installation hole 23. In addition, the outer wall of the connecting member 24 is provided with a flange 242 extending laterally and located above the mounting hole 23, and the mounting seat 5 has a receiving groove 51 for limiting the flange 242 therein. In this way, the spray member 2 is rotatable relative to the coupling member 24.

As shown in fig. 2, 5 and 6, the shower member 2 has a disk shape as a whole, and the top surface of the shower member 2 has a water containing chamber 20 recessed downward. The spraying member 2 includes a bottom plate 21 and an inclined plate 22, the bottom plate 21 is a flat bottom plate 21, the inclined plate 22 is formed by gradually inclining the periphery of the bottom plate 21 from bottom to top to outside, and the connection between the inclined plate and the bottom plate of the embodiment is in smooth transition. The bottom plate 21 and the inclined plate 22 enclose the water containing cavity 20, and the water containing cavity 20 is located below the door body 12. Set up at least two sets of first water outlet groups along this circumferential interval arrangement who sprays the body on the aforementioned hang plate 22, the first water outlet group of every group has at least one and holds water cavity 20 and be linked together in order to drive the first apopore 201 that sprays 2 pivoted, first apopore 201 sprays downwards, in this embodiment, there are three first apopores 201 of inside to outside interval arrangement in the first water outlet group of every group, in addition, the first water outlet group of every group can also have two, or three more than first apopore 201. The play water direction of foretell first apopore 201 and vertical be acute angle contained angle to make the play water direction of all first apopores 201 present clockwise or anticlockwise arranging soon on the whole, order then to spray 2 and wash case 1 relatively and rotate, the rotation direction that sprays 2 and the whole of all first apopores 201 revolve to opposite.

As shown in fig. 4 and 7, the bottom surface of the inclined plate 22 of the spray member 2 is provided with a plurality of downwardly extending blades 221 between two adjacent first outlet groups, such that the plurality of blades 211 are spaced along the circumferential direction of the spray member. The blades have the same structural form, and one of the blades is taken as an example for explanation. The blades 221 extend along the arrangement direction of the first outlet holes 201 in the corresponding first outlet group, and are arc-shaped, specifically, the blades 221 are gradually bent from inside to outside in the direction opposite to the rotation direction of the spray member 221, and a water guide channel 222 is formed between two adjacent blades 221. The blades 221 in this embodiment form acute included angles in the circumferential direction or the vertical direction of the spray member 2, so that all the blades are arranged in a clockwise or counterclockwise turning direction as a whole, and the turning direction of all the blades 221 is opposite to the whole turning direction of all the first outlet holes 201. In addition, at least two sets of second water outlet groups are disposed on the bottom plate 21 at intervals along the circumferential direction, and at least one second water outlet hole 211 is disposed in each set of second water outlet groups. The second water outlet groups in this embodiment have multiple groups, and each group has multiple second water outlet holes 211.

As shown in fig. 1, the lower surface of the door body 12 is an inclined surface 121 that is gradually inclined upward from the connection with the shower member 2. The filter screen 6 is arranged on the spraying part 2 and rotates along with the spraying part 2, and filter holes are distributed on the filter screen 6. The filter screen 6 can be fixed on the spray member 2 in a detachable manner or can be integrated with the spray member 2. When the door is closed, the filter screen 6 covers the spray part 2 and is positioned below the door body 12, and a gap 01 is left between the filter screen and the door body 12. The slag collecting cup 7 is detachably arranged on the lower surface of the door body 12 and is positioned on the peripheral side of the filter screen 6 for collecting residues, and the inner cavity 70 of the slag collecting cup 7 is positioned below the gap 01 in the door opening state. The slag collecting cup 7 can adopt a screw connection mode, a buckle connection mode and other modes, and the slag collecting cup 7 can be detached as long as the slag collecting cup 7 can be detached, so that detailed description is omitted in the embodiment.

As shown in fig. 1 and 3, the washing chamber 100 has a downwardly concave draining chamber 101 at a central portion of a bottom thereof, a draining plate 103 having draining holes is covered on the draining chamber 102, and the shower body 4 is rotatably disposed on the draining plate 103. The interior of the spraying body 4 is provided with a water channel 41, and the bottom of the spraying body 4 is provided with a water inlet channel 42 near the center, which is communicated with the water channel 41, and the top wall of the spraying body 4 is provided with a water spraying hole 411 communicated with the water channel 41, and the water spraying hole 411 sprays upwards. To supply water into the water passage 41, the water pumping unit 8 is used to pump the water in the draining chamber 102 into the water passage 41 through the water inlet passage 42 and to spray the water upward through the water spraying holes 411. The aforementioned water pumping assembly 8 is the water pumping assembly in the applicant's prior patent application for the cleaning machine, and will not be described in detail in this embodiment.

As shown in fig. 1 and 3, the spray arm 3 is disposed on a first sidewall of the washing chamber 100, which is a front sidewall in this embodiment. The spray arm 3 extends along the left-right direction, the flow channel 30 is arranged inside the spray arm, the front wall plate facing the spray part 2 is provided with an inclined part 31 which gradually inclines inwards from top to bottom, the inclined part 31 is provided with a first spray hole 301 which can supply water to the water containing cavity 20, the first spray holes 301 are arranged in a plurality and are communicated with the flow channel 30 at intervals along the length direction of the spray arm 3, and in addition, 1, 2 or more than three first spray holes 301 can be adopted. The first spraying holes 301 are located below the water containing cavity 20 and spray upwards in the present embodiment. In a closed state, as shown in fig. 1, the door 12, the filter screen 6 and the water containing cavity 20 are sequentially arranged along a flow path of water flow sprayed from the first spraying holes 301, such that the spraying direction of the first spraying holes 301 faces the door 12, water reflected from the door 12 enters the water containing cavity 20, and then the water containing cavity 20 is located on the water flow path of the water flow sprayed from the first spraying holes 301, specifically referring to the direction indicated by the hollow arrow in fig. 1.

In order to drive the spraying member 2 to rotate, as shown in fig. 1, a second spraying hole 302 for pushing the spraying member 2 to rotate is formed on the inclined portion 31 of the spraying arm 3, the second spraying hole 302 is communicated with the flow passage 30, and the spraying member 2 is located on a flow path of water flow sprayed from the second spraying hole 302. The second spray holes 302 are arranged in two groups at intervals along the length direction of the spray arm 3, and the first spray holes 301 are located between the two groups of second spray holes 302. There may be one or more than two second spray holes 302 in each set.

The water flow sprayed out from the first spraying holes 301 of the spraying arm 3 continuously impacts the lower surface of the door body, and continuously adds water into the water containing cavity 20 of the spraying part 2 after being reflected. Spray hole 302 spun rivers through the second and constantly promote and spray 2, thereby it rotates around self axis to drive to spray 2, and the first apopore 201 that sprays 2 is because the reaction force effect of rivers is used in spraying 2, further drive and spray 2 and rotate, in addition, because first apopore 201 sets up on hang plate 22, then the reaction force of the rivers of spraying through first apopore 201 has ascending power to spraying 2, it rotates the in-process to have reduced spraying 2, connecting piece and the frictional force that sprays between the piece, make the rotation that sprays 2 smooth and easy more.

As shown in fig. 4, the side wall of the washing chamber 100 adjacent to the first side wall 111 is the second side wall 112, the spray arm 3 is provided with third spray holes 303 communicating with the flow channel 30 at positions below the first spray holes 301, and the third spray holes 303 are provided in groups, and two groups are provided and spaced apart from each other along the length direction (left-right direction) of the spray arm 3. There is one third spray hole 303 in each group, and two or more than three third spray holes 303 may be employed in each group. In this embodiment, the third spray holes 303 on the left side spray the second side wall 112 toward the left side, and are adjacent to the corners of the first side wall, and the second side wall 112 on the right side spray the third spray holes 303 on the right side spray the second side wall 112 adjacent to the corners of the first side wall, that is, the third spray holes 303 in each group spray the second side wall 112 toward the adjacent second side wall.

In order to realize the water supply to the spray arm 3, the bottom wall of the spray arm 3 is provided with a water inlet 32, the water inlet 32 is communicated with the draining cavity 101 through a water inlet pipe 33, and the water inlet pipe 33 is positioned at the downstream of the draining cavity 101 along the water flow path. The water column ejected from the spray arm 3 is shown by a dotted line in fig. 7. Downward in this embodiment includes, but is not limited to, vertically downward.

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 (22)

1. A cleaning machine comprising:

a washing tank (1) having a washing chamber (100) therein;

a shower (2) arranged in an upper region of the washing chamber (100);

the spraying arm (3) is arranged on the side wall of the washing chamber (100), a flow channel (30) is arranged in the spraying arm, and a first spraying hole (301) communicated with the flow channel (30) is formed in the spraying arm;

the method is characterized in that: the top of the spraying piece (2) is provided with a water containing cavity (20) which is downwards concave and used for bearing water, the spraying piece (2) is provided with a first water outlet hole (201) which is communicated with the water containing cavity (20) and sprays downwards, and the water containing cavity (20) is positioned on a water flow path of water flow sprayed out from the first spraying hole (301).

2. The cleaning machine of claim 1, wherein: the number of the first water outlets (201) is at least two, the first water outlets (201) are arranged along the circumferential direction of the spraying piece (2) at intervals, and the water outlet direction of the first water outlets (201) forms an acute angle with the vertical direction, so that the water outlet directions of all the first water outlets (201) are arranged in a clockwise or anticlockwise rotating direction on the whole.

3. The cleaning machine of claim 2, wherein: the spraying piece (2) is provided with at least two groups of first water outlet groups which are arranged at intervals along the circumferential direction of the spraying piece, at least two first water outlet holes (201) are arranged at intervals from inside to outside in each group of first water outlet groups, and the water outlet directions of all the first water outlet groups are arranged in a clockwise or anticlockwise spiral direction on the whole.

4. The cleaning machine of claim 3, wherein: the bottom surface of the spraying piece (2) is provided with a blade (221) extending downwards between two adjacent groups of first water outlet groups, and the blade (221) extends along the arrangement direction of the first water outlet holes (201) in the corresponding first water outlet groups.

5. The cleaning machine of claim 4, wherein: the blades (221) are in an arc shape which is gradually bent towards the direction opposite to the rotating direction of the spraying piece (221) from inside to outside.

6. The cleaning machine of claim 4, wherein: the number of the blades (221) is at least two, the blades (221) are arranged along the circumferential direction of the spraying piece (2) at intervals, and the blades (221) form acute included angles in the circumferential direction or the vertical direction of the spraying piece, so that all the blades (221) are integrally arranged in a clockwise or anticlockwise rotating direction, and the rotating direction of the blades (221) is opposite to the integral rotating direction of the water outlet direction of the first water outlet hole (201).

7. The cleaning machine of claim 1, wherein: the spraying piece (2) is integrally disc-shaped.

8. The cleaning machine of claim 7, wherein: spray piece (2) including being bottom plate (21) of straight form and from the peripherad of bottom plate (21) gradually tilt towards outer inclined board (22) from bottom to top, bottom plate (21) and tilt board (22) enclose and close and form water containing cavity (20), first apopore (201) are located on tilt board (22).

9. The cleaning machine of claim 8, wherein: the bottom plate (21) is provided with at least two groups of second water outlet groups which are arranged at intervals along the circumferential direction, and each group of second water outlet groups is provided with at least one second water outlet hole (211).

10. The cleaning machine of claim 1, wherein: the spraying arm (3) is provided with a second spraying hole (302) facing the wall plate of the spraying piece (2) and used for pushing the spraying piece (2) to rotate, the second spraying hole (302) is communicated with the flow channel (30), and the spraying piece (2) is positioned in the spraying direction of the second spraying hole (302).

11. The cleaning machine of claim 10, wherein: the spray arms (3) are transversely arranged, two groups of second spray holes (302) are arranged at intervals along the length direction of the spray arms (3), and the first spray holes (301) are positioned between the two groups of second spray holes (302).

12. The cleaning machine of claim 11, wherein: the wall plate of the spray arm (3) facing the spray part (2) is provided with an inclined part (31) which is gradually inclined inwards from top to bottom, and the first spray hole (301) and the second spray hole (302) are both positioned on the inclined part (31).

13. The cleaning machine of claim 10, wherein: the spray arm (3) is provided with a third spray hole (303) for cleaning the inner side wall of the washing chamber (100) except the first side wall (111) where the spray arm (3) is located, and the third spray hole (303) is located below the first spray hole (301).

14. The cleaning machine of claim 13, wherein: the side wall of the washing chamber (100) adjacent to the first side wall (111) is a second side wall (112), the third spraying holes (303) are arranged in groups, at least two groups are arranged at intervals along the length direction of the spraying arm (3), at least one third spraying hole (303) is arranged in each group, and the spraying direction of each group of third spraying holes (303) faces to the respectively adjacent second side wall (112).

15. The cleaning machine of claim 1, wherein: the position of the washing chamber (100) close to the bottom is provided with a spraying body (4), a water flow channel (41) is arranged inside the spraying body (4), the spraying body (4) is provided with a water spraying hole (411) which sprays upwards, and the water spraying hole (411) is communicated with the water flow channel (41).

16. The cleaning machine of claim 15, wherein: the bottom of the washing chamber (100) is provided with a draining cavity (101) which is sunken downwards at least at the central part, a draining plate (103) with draining holes is covered on the draining cavity (102), the spraying body (4) can be rotatably arranged on the draining plate (103), and the water inlet channel of the spraying body (4) and the water inlet of the spraying arm (3) are communicated with the draining cavity (101) in a fluid mode.

17. The cleaning machine of any one of claims 1 to 16, wherein: wash case (1) including having open-top box (11) and covering door body (12) of the open-top of box (11), enclose between box (11) and the door body (12) and close and be formed with washing chamber (100), the position that sprays the piece (2) and is close to central authorities sets up on the lower surface of door body (12), hold water cavity (20) and be located under door body (12), and be located above first spraying hole (301), along first spraying hole (301) spun rivers flow path, door body (12) are located the upper reaches of holding water cavity (20).

18. The cleaning machine of claim 17, wherein: the lower surface of the door body (12) is provided with a mounting seat (5), a mounting hole (23) is formed in the position, close to the center, of the spraying piece (2), a connecting piece (24) is arranged in the mounting hole (23), a convex portion (231) and a groove (241) which are matched and matched mutually are arranged between the inner peripheral walls of the mounting hole (23), the groove (241) extends along the circumferential direction, the outer wall of the connecting piece (24) is provided with a flange (242) which extends laterally and is located on the mounting hole (23), and the mounting seat (5) is provided with a containing groove (51) for limiting the flange (242) in the containing groove.

19. The cleaning machine of claim 17, wherein: spray piece (2) relatively fixed with filter screen (6), under the state of closing the door, filter screen (6) cover spray piece (2) on and be located the door body (12) are below, along first hole (301) spun rivers flow path sprays, filter screen (6) are located between door body (12) and appearance water cavity (20).

20. The cleaning machine of claim 19, wherein: the lower surface of the door body (12) is an inclined surface (121) which gradually inclines upwards from the connection part of the door body and the spraying piece (2).

21. The cleaning machine of claim 19, wherein: the rear side edge of the door body (12) can be rotatably arranged at the corresponding edge of the top opening of the box body (11), a residue collecting cup (7) used for collecting residues is arranged on the lower surface of the door body (12), a gap (01) is reserved between the filter screen (6) and the door body (12), and under the condition that the door is opened, an inner cavity (70) of the residue collecting cup (7) is located below the gap (01).

22. The cleaning machine of claim 21, wherein: the slag collecting cup (7) is detachably arranged on the lower surface of the door body (12).

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