CN116982896A

CN116982896A - Cleaning machine

Info

Publication number: CN116982896A
Application number: CN202210493519.2A
Authority: CN
Inventors: 王栋
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2023-11-03

Abstract

The application relates to a cleaning machine, which comprises a cleaning box; the main spray arm is rotatably arranged at a position adjacent to the bottom of the washing chamber, a main flow channel is arranged in the main spray arm, and at least the top wall of the main spray arm is provided with a water spray hole communicated with the main flow channel; the side wall is provided with a water outlet communicated with the main runner and a plugging piece for opening or closing the water outlet, the auxiliary spray arm is arranged at a position adjacent to a corner of the washing chamber and is positioned at the periphery of the main spray arm, the auxiliary spray arm is arranged to be capable of lifting up and down relative to the washing box, the auxiliary runner is arranged in the main spray arm, and a water outlet communicated with the auxiliary runner is formed in the auxiliary spray arm; the pushing piece is arranged on the auxiliary spray arm, a water inlet channel which is in fluid communication with the auxiliary flow channel is formed in the auxiliary spray arm, and when the pushing piece moves along the auxiliary spray arm along the up-down direction to a rotating path of a water outlet of the main spray arm, the plugging piece of the main spray arm can be pushed by the pushing piece to open the water outlet, so that the main flow channel and the auxiliary flow channel are in a communication state. The corners where the auxiliary spray arms are positioned are cleaned, and the cleaning capacity of the corners is improved.

Description

Cleaning machine

Technical Field

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

Background

A washer is a device that sprays cold water or hot water to dishes to remove dirt adhering to the dishes or fruits and to wash the dishes or fruits. The existing spray type cleaning machine generally realizes the spraying in all directions by rotating a sprayer.

The present cleaning machine, such as the chinese patent application for a cleaning machine and a cleaning machine using the same, in which the present inventor filed earlier, has disclosed a rotary spray arm for a cleaning machine, with the application number CN201811440066.7 (application publication number CN111227749 a), comprising an upper cover and a lower cover that are fastened to each other, a flow channel is formed between the upper cover and the lower cover, a first nozzle for spray cleaning is provided on the upper cover, the first nozzle is communicated with the flow channel, and cleaning of an object to be cleaned in a cleaning chamber of the cleaning machine is achieved by the rotary spray arm, but because a gap is left between the rotary spray arm and an inner peripheral wall of the cleaning chamber, a spray area is limited during rotation of the rotary spray arm, and a cleaning dead angle is easy to appear at a corner of the cleaning chamber.

Accordingly, there is a need for further improvements to existing cleaning machines.

Disclosure of Invention

The first technical problem to be solved by the present application is to provide a cleaning machine capable of cleaning a corner against the current state of the art.

The second technical problem to be solved by the application is to provide a cleaning machine for enhancing the diagonal drop cleaning capability.

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

a washing tank having a washing chamber therein;

the main spray arm is rotatably arranged at a position adjacent to the bottom of the washing chamber, a main flow channel is arranged in the main spray arm, and at least the top wall of the main spray arm is provided with a water spray hole communicated with the main flow channel;

the cleaning machine is characterized in that a water outlet communicated with the main flow channel and a sealing piece arranged at the water outlet for opening or closing the water outlet are arranged on the side wall of the main spray arm, and the cleaning machine further comprises:

the auxiliary spray arm is arranged at a position adjacent to a corner of the washing chamber, is positioned on the periphery of the main spray arm, can be lifted up and down relative to the washing box, is internally provided with an auxiliary flow channel, and is provided with a water outlet communicated with the auxiliary flow channel; a kind of electronic device with high-pressure air-conditioning system

The pushing piece is arranged on the auxiliary spray arm, a water inlet channel which is in fluid communication with the auxiliary flow channel is formed in the auxiliary spray arm, and when the pushing piece moves along the auxiliary spray arm along the up-down direction to a rotating path of a water outlet of the main spray arm, the plugging piece of the main spray arm can be pushed by the pushing piece to open the water outlet, so that the main flow channel and the auxiliary flow channel are in a communication state.

The application solves the second technical problem by adopting the technical proposal that: the auxiliary spray arm comprises a connecting seat and a spray body which can be rotationally arranged on the connecting seat, the water outlet Kong Kaishe is arranged on the spray body, the auxiliary flow channel is formed in the hollow inside of the spray body, the pushing piece is arranged on the side wall of the connecting seat, and a cavity which is communicated with the water inlet channel and the auxiliary flow channel is formed in the hollow inside of the connecting seat.

The bottom of the spray body is rotatably arranged on the top of the connecting seat, or the side of the spray body is rotatably arranged on the connecting seat, but preferably, the bottom of the spray body is rotatably arranged on the top of the connecting seat, a water passing hole communicated with the cavity of the connecting seat is arranged at the position of the bottom of the spray body adjacent to the center, and the water outlet Kong Kaishe is arranged on the top wall of the spray body.

In order to realize the rotation connection of spray body and connecting seat, the week side of water hole is equipped with two at least along circumference interval arrangement and all downwardly extending's extension pole, the position that the lateral wall of extension pole is adjacent the bottom has the convex part of lateral extension, the jack that supplies the extension pole inserts wherein is seted up to the roof board of connecting seat the spray body is installed under the state of connecting seat, the roof board of connecting seat is located between convex part and the spray body.

In order to enable the pushing piece to reliably push the plugging piece, the side wall of the connecting seat is provided with a mounting hole for mounting the pushing piece, and the pushing piece is arranged to move back and forth along the extending direction of the mounting hole.

In order to realize the inside and outside removal of impeller, the slider that can reciprocate relative this connecting seat is installed to the diapire board of connecting seat, the upper portion of slider is located in the cavity of connecting seat, and the top surface of this slider has top-down gradually towards the inclined plane of mounting hole direction slope, vice spray arm still includes acting on the impeller and making the impeller have the elastic component of the trend of inwards movement along the extending direction of mounting hole all the time. In addition, the driving component can also actively drive the pushing piece to move inside and outside.

In order to prevent the slider from separating from the connecting seat, the mounting hole for the slider to be mounted is formed in the bottom wall plate of the connecting seat, an upper limiting plate and a lower limiting plate which are arranged at intervals from top to bottom are arranged on the peripheral wall of the slider, the upper limiting plate is located below the inclined surface, and the bottom wall plate of the connecting seat is located between the upper limiting plate and the lower limiting plate.

The auxiliary spray arm can be driven to move up and down manually, and the auxiliary spray arm can be driven to move up and down actively by a driving mechanism, but from the aspects of operation reliability and use convenience, the auxiliary spray arm driving device preferably further comprises a driving mechanism at least used for driving the auxiliary spray arm to move up and down, and a power output end of the driving mechanism is connected with the auxiliary spray arm in a driving way.

The driving mechanism has various structural forms, can adopt the form of a push rod motor, can also adopt the form of a pushing cylinder, can also adopt other forms, but preferably, the driving mechanism comprises a motor and a vertically extending screw rod, the screw rod is arranged on an output shaft of the motor, and the sliding piece is provided with an inner screw hole in threaded connection with the screw rod.

In order to achieve a cleaning operation of only the main spray arm, the auxiliary spray arm has a position below the main spray arm, and in this position the blocking element blocks the water outlet of the main spray arm.

The sealing piece has various structural forms, can adopt a form of moving inside and outside relative to the water outlet and can also adopt a rotary form, but preferably, the sealing piece is a valve plate which can be rotatably arranged at the water outlet, the valve plate is positioned in the main runner, the valve plate comprises a sealing part and a connecting part connected with the main spray arm, and the connecting part is an elastic piece which enables the sealing part to always have a movement trend towards the direction of closing the water outlet.

In order to clean all corners, the cross section of the cleaning box is square, four auxiliary spray arms are respectively arranged at the four corners of the cleaning chamber, and each auxiliary spray arm is correspondingly provided with one pushing piece.

In order to clean at least one corner located on a diagonal line, the water outlets are formed in opposite side walls of the main spray arm, and the main spray arm is connected with at least one auxiliary spray arm located on the diagonal line and is in fluid communication with an auxiliary flow channel of the auxiliary spray arm when the main spray arm rotates to be arranged along the diagonal line direction of the washing chamber.

Compared with the prior art, the application has the advantages that: according to the cleaning machine, the auxiliary spray arm is arranged at the corner and can move along the up-down direction, so that the auxiliary spray arm can move to the state that the pushing piece of the auxiliary spray arm is positioned on the rotating path of the water outlet of the main spray arm, and in the state, the pushing piece can push the plugging piece of the main spray arm to enable the water outlet to be in an open state, so that the main flow channel of the main spray arm and the auxiliary flow channel of the auxiliary spray arm are communicated, the corner where the auxiliary spray arm is located is cleaned, the cleaning capacity of the corner is improved, and in addition, the main spray arm and the auxiliary spray arm share the same waterway, so that the complexity caused by the fact that waterways are respectively arranged is avoided.

Drawings

FIG. 1 is a schematic view of a portion of a main spray arm positioned below a secondary spray arm and in an unconnected state;

FIG. 2 is a longitudinal cross-sectional view of FIG. 1;

FIG. 3 is a longitudinal cross-sectional view at another angle to FIG. 1;

FIG. 4 is a longitudinal cross-sectional view of a portion of the structure with the primary spray arm and two secondary spray arms in a connected state;

FIG. 5 is a transverse cross-sectional view of a portion of the structure with the primary spray arm and two secondary spray arms in a connected state;

fig. 6 is a schematic structural view of the spray body.

Detailed Description

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

As shown in fig. 1 to 6, the washing machine of the present embodiment is a washing machine for washing fruits, vegetables, or dishes. The cleaning machine comprises a cleaning box 1, a main spray arm 2, an auxiliary spray arm 3, a pushing piece 4, a sliding piece 5, a driving mechanism 6, an elastic piece and a water pumping mechanism 8.

As shown in fig. 1 to 5, the above-described washing tank 1 includes a tank body 1a having an open top and a door body (not shown) covering the open top of the tank body. The cabinet 1a and the door are enclosed to form a washing chamber 10 in a state where the door closes the top opening of the cabinet 1 a. The cross section of the case 1a of the present embodiment is square.

As shown in fig. 1 to 5, the bottom of the washing chamber 10 is provided with a deflector 13, the main spray arm 2 is rotatably provided on the deflector 13, and the main spray arm 2 has a main flow passage 20 inside. The top wall plate of the main spray arm 2 has a water spray hole 201 communicating with the main flow path 20, and water is sprayed upward through the water spray hole 201. The main spray arm 2 is generally in a straight line shape, or may be S-shaped, or have other shapes. The main flow channel 20 comprises a water collecting cavity 20a at the center and flow dividing channels 20b which are arranged at two sides of the water collecting cavity 20a at intervals along the length direction of the main spray arm 2, the water collecting cavity 20a is communicated with the flow dividing channels 20b at two sides, and a plurality of water spraying holes 201 are arranged at positions corresponding to the flow dividing channels 20b and are arranged at intervals along the length direction of the flow dividing channels. The bottom wall plate of the main spray arm 2 is provided with a liquid inlet channel communicated with the water collecting cavity 20a near the center, and the water pumping mechanism 8 is used for pumping water at the bottom of the washing chamber 10 into the water collecting cavity 20a of the main spray arm 2 through the internal flow channel and the liquid inlet channel of the flow guiding seat 13. The bottom surface of the main spray arm is provided with two driving holes for driving the main spray arm to rotate, the driving holes are communicated with the main flow channel, and the main spray arm 2 is driven to rotate by the reaction force generated by water flow emitted by the two driving holes. The pumping mechanism in this embodiment adopts the pumping mechanism in the previous patent application of the inventor, and detailed description thereof will not be repeated in this embodiment.

As shown in fig. 3, the side wall of the main shower arm 2 is provided with a water outlet 202 communicating with the main flow channel 20 and a blocking member provided at the water outlet 202 to open or close the water outlet 202. In this embodiment, two opposite side walls of the main spray arm 2 are provided with a water outlet 202, and each water outlet 202 corresponds to a plugging piece. As shown in fig. 5, the plugging member is a valve plate 21 rotatably disposed at the water outlet 202, the valve plate 21 is disposed in the main flow channel 20, and the valve plate 21 includes a plugging portion 211 and a connecting portion connected to the main spray arm 2, wherein the connecting portion is an elastic piece 212 that enables the plugging portion 211 to always have a movement tendency toward the direction of closing the water outlet 202. In this embodiment, when the water outlet 202 is in an open state, the blocking portion 211 is rotatable relative to the elastic piece 212.

The number of the auxiliary spray arms 3 in the embodiment is four, and the auxiliary spray arms 3 are respectively arranged at four corners of the washing chamber 10, and each auxiliary spray arm 3 is correspondingly provided with a group of driving mechanisms and a pushing piece. The structure of each sub spray arm 3 and the connection manner of the corresponding driving mechanism and the pusher are the same, and one of the sub spray arms 3 will be described below as an example.

The auxiliary spray arm 3 is located at the peripheral side of the main spray arm 2, and is driven by the respective driving mechanisms 6 to lift up and down relative to the cleaning tank 1, i.e., to lift up and down relative to the main spray arm 2. The auxiliary spray arm 3 includes a connecting seat 31 and a spray body 32 rotatably disposed on the top of the connecting seat 31, and the spray body 32 of the present embodiment is in a shape of a line or an S. The spray body 32 is hollow and formed with a secondary flow passage 30, and the top wall plate of the spray body 32 has a plurality of water outlet holes 321 communicated with the secondary flow passage 30, and the water outlet holes 321 in this embodiment are arranged at intervals along the length direction of the spray body 32. The bottom of the spray body 32 is provided with a water passing hole 322 near the center, and a cavity 310 communicated with the water passing hole 322 is formed in the connecting seat 31.

In order to realize the rotary connection between the connecting seat 31 and the spray body 32, at least two extending rods 323 which are arranged at intervals along the circumferential direction and extend downwards are arranged on the circumferential side of the water passing hole 322, and four or more extending rods 323 can be adopted in the embodiment. Each of the extension bars has the same structure, and one of the extension bars 323 will be described as an example. The side wall of the extension bar 323 has a laterally extending protrusion 3231 adjacent the bottom, and the extension bar 323 is resilient. The top wall plate of the connection seat 31 is provided with an insertion hole 311 into which the extension rod 323 is inserted, and in a state in which the shower body 32 is mounted on the connection seat 31, the top wall plate of the connection seat 31 is positioned between the convex portion 3231 and the shower body 32, so that the connection of the shower body 32 and the connection seat 31 is realized.

The pushing member 4 is disposed on a side wall of the connecting seat 31, and has a water inlet channel 40 in communication with the cavity 310, so that the cavity 310 realizes communication between the water inlet channel 40 and the secondary flow channel 30, and the primary flow channel 20, the water inlet channel 40, the cavity 310 and the secondary flow channel 30 are sequentially disposed along the fluid flow direction. In the present embodiment, the sidewall of the connection seat 31 is provided with a mounting hole 312 for mounting the pushing member 4, and the pushing member 4 is arranged to be capable of moving back and forth along the extending direction of the mounting hole 312, and the extending direction of the mounting hole 312 is the wall thickness direction of the sidewall of the connection seat 31. In order to realize the back and forth movement of the pushing member 4, specifically, the bottom wall plate of the connection seat 31 is provided with a sliding member 5 capable of moving up and down relative to the connection seat 31, the upper part of the sliding member 5 is located in the cavity 310 of the connection seat 31, the top surface of the sliding member 5 is provided with an inclined surface 51 gradually inclined towards the direction of the mounting hole 312 from top to bottom, and the auxiliary spray arm 3 further comprises an elastic member acting on the pushing member 4 and enabling the pushing member 4 to always have an inward movement trend along the extending direction of the mounting hole 312. The elastic member in this embodiment is a spring 7 located in the cavity 310, the expansion and contraction direction of the spring 7 is along the inner and outer moving direction of the pushing member 4, and a first end of the spring 7 is connected with a corresponding wall plate of the cavity 310, and a second end of the spring 7 is connected with an inner end of the pushing member 4.

In order to prevent the sliding member 5 from being separated from the connecting seat 31, the bottom wall plate of the connecting seat 31 is provided with an assembly hole for mounting the sliding member 5, the outer peripheral wall of the sliding member 5 is provided with an upper limiting plate 52 and a lower limiting plate 53 which are arranged at intervals from top to bottom, the upper limiting plate 52 is positioned below the inclined surface 51, and the bottom wall plate of the connecting seat 31 is positioned between the upper limiting plate 52 and the lower limiting plate 53.

The driving mechanism 6 of the auxiliary spray arm 3 is at least used for driving the auxiliary spray arm 3 to move up and down, and the power output end of the driving mechanism 6 is in driving connection with the auxiliary spray arm 3. Specifically, the driving mechanism 6 includes a motor 61 and a vertically extending screw 62, the screw 62 is mounted on an output shaft of the motor 61, and the slider 5 is provided with an inner screw hole in threaded connection with the screw 62. In this way, when the motor 61 is in the working state, the sliding piece 5 can be driven to move up and down, and then the auxiliary spray arm 3 is driven to move up and down.

In the state that the auxiliary spray arm 3 moves upwards until the corresponding pushing member 4 is positioned on the rotating path of the water outlet 202 of the main spray arm 2, the valve plate 21 of the main spray arm 2 is pushed by the pushing member 4 to open the water outlet 202, so that the main flow channel 20 is communicated with the auxiliary flow channel 30 through the water inlet channel 40 and the cavity 310. In the present embodiment, as shown in fig. 5, in a state in which the main spray arm 2 is rotated to be arranged along a diagonal direction of the washing chamber 10, the main spray arm 2 is connected with at least one sub spray arm 3 located on the diagonal, and the main spray arm 2 is in fluid communication with a sub flow path of the corresponding sub spray arm 3. When the auxiliary spray arm 3 is located under the main spray arm 2, the auxiliary spray arm 3 avoids interference to the rotation of the main spray arm 2 during the rotation of the main spray arm 2, the auxiliary flow channel of the auxiliary spray arm 3 is not communicated with the main flow channel of the main spray arm 2, the valve plate 21 seals the water outlet 202 of the main spray arm 2, and water in the main flow channel 20 cannot flow out through the water outlet 202.

The process of adjusting the up-and-down movement of the auxiliary spray arm 3 is as follows:

when the auxiliary spray arm 3 moves downwards, the motor 61 rotates reversely, the sliding member 5 moves downwards, the pushing member 4 moves rightwards under the action of the spring 7, the right end face of the pushing member 4 contacts with the inclined face 51 of the sliding member 5, the pushing member 4 slides rightwards to be in place to stop, and at the moment, the left end of the pushing member 4 is separated from the water outlet 202 of the main spray arm. When the motor 61 continues to rotate reversely, the sliding part 5 continues to move downwards, and when the lower limiting plate of the sliding part 5 contacts with the bottom wall of the cavity 310, the sliding part 5 continues to move downwards to drive the auxiliary spray arm 3 to move downwards, at this time, the whole auxiliary spray arm 3 moves downwards to a proper position, at this time, the main spray arm 2 cannot interfere with the auxiliary spray arm 3, and the main spray arm 2 can rotate along the circumferential direction. When the auxiliary spray arm 3 is required to be cleaned, the motor 61 rotates forward, the sliding piece 5 moves upwards, and the right end face of the pushing piece 4 moves leftwards under the action of the inclined face 51 of the sliding piece 5, so that the communication between the main spray arm and the auxiliary spray arm 3 is finally realized. The up-and-down movement of the auxiliary spray arms 3 can be realized through the forward and backward rotation of the motor 61, so that the cleaning of the pure main spray arms 2 is realized, or the main spray arms 2 and one of the auxiliary spray arms 2 can simultaneously realize the cleaning, or the main spray arms 2 and the two auxiliary spray arms 2 can simultaneously work to realize the cleaning.

The working process of the cleaning machine is as follows:

when the auxiliary spray arms are not needed, the four auxiliary spray arms 3 move downwards under the drive of the respective driving mechanisms 6, at the moment, the four auxiliary spray arms are not communicated with the auxiliary spray arms 3 in the rotation process of the main spray arm 2, and at the moment, only the main spray arm 2 works and is cleaned.

When the auxiliary spray arms are needed, the four auxiliary spray arms 3 move upwards under the drive of the respective driving mechanisms 6, when the auxiliary spray arms 3 move upwards and the pushing members 4 of the auxiliary spray arms are positioned on the rotating paths from the main spray arm 2 to the water outlets 202, and when the main spray arm 2 rotates to the position adjacent to the two auxiliary spray arms 3 on one diagonal line, the pushing members 4 on the auxiliary spray arms 3 push the valve plates 21 so as to open the water outlets 202, at the moment, water flowing out of the main flow channel 20 and the water outlets 202 flows into the auxiliary flow channel 30 through the water inlet channel 40 and the cavity 310 and upwards sprays out the water outlet holes 321, and the spraying bodies 32 are driven to rotate relative to the connecting seats 31 due to the reaction force of the water flow sprayed out of the water outlet holes 321 of the spraying bodies 32 of the auxiliary spray arms, so that the cleaning of corners is enhanced. Similarly, when the main shower arm 2 rotates to the other two sub shower arms 3, the other two sub shower arms 3 may be connected in the same manner, so that the other two shower bodies 32 rotate to clean the two corner regions. Therefore, the four corners of the washing chamber can be cleaned in an enhanced manner, and the main spray arm 2 is combined to clean the middle area of the washing chamber, so that the effective cleaning of each area in the whole washing chamber is realized, and the cleaning dead angle is avoided. In addition, when the position of the auxiliary spray arm 3 is kept unchanged, namely the main spray arm is always communicated with the corresponding auxiliary spray arm, so that cleaning is enhanced in a certain area at a fixed point.

In the description and claims of the present application, 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 application, 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 application 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, comprising:

a washing tank (1) having a washing chamber (10) inside;

a main spray arm (2) rotatably arranged near the bottom of the washing chamber (10), wherein a main flow channel (20) is arranged in the main spray arm, and at least the top wall of the main spray arm (2) is provided with a water spray hole (201) communicated with the main flow channel (20);

the cleaning machine is characterized in that a water outlet (202) communicated with the main runner (20) and a plugging piece arranged at the water outlet (202) for opening or closing the water outlet (202) are arranged on the side wall of the main spray arm (2), and the cleaning machine further comprises:

a sub spray arm (3) disposed at a position adjacent to a corner of the washing chamber (10) and located at a peripheral side of the main spray arm (2) and arranged to be capable of being lifted up and down with respect to the washing tank (1), the inside of the sub spray arm being provided with a sub flow passage (30) and the sub spray arm (3) being provided with a water outlet hole (321) communicating with the sub flow passage (30); a kind of electronic device with high-pressure air-conditioning system

The pushing piece (4) is arranged in the auxiliary spray arm (3), a water inlet channel (40) which is in fluid communication with the auxiliary flow channel (30) is arranged in the auxiliary spray arm (3), and when the pushing piece (4) moves along the up-down direction along with the auxiliary spray arm (3) to a state of being positioned on a rotating path of a water outlet (202) of the main spray arm (2), the plugging piece of the main spray arm (2) can be pushed by the pushing piece (4) to open the water outlet (202) so as to enable the main flow channel (20) to be in a communication state with the auxiliary flow channel (30).

2. The cleaning machine of claim 1, wherein: the auxiliary spray arm (3) comprises a connecting seat (31) and a spray body (32) capable of being rotationally arranged on the connecting seat (31), the water outlet hole (321) is formed in the spray body (32), the auxiliary flow channel (30) is formed in the hollow inside of the spray body (32), the pushing piece (4) is arranged on the side wall of the connecting seat (31), and the hollow inside of the connecting seat (31) is provided with a cavity (310) which is communicated with the water inlet channel (40) and the auxiliary flow channel (30).

3. The cleaning machine of claim 2, wherein: the bottom of the spraying body (32) can be rotatably arranged on the top of the connecting seat (31), a water passing hole (322) communicated with the cavity (310) of the connecting seat (31) is formed in the position, adjacent to the center, of the bottom of the spraying body (32), and the water outlet hole (321) is formed in the top wall of the spraying body (32).

4. A cleaning machine as claimed in claim 3, wherein: the periphery of water hole (322) is equipped with at least two along circumference interval arrangement and all downwardly extending's extension pole (323), the position that the lateral wall of extension pole (323) is adjacent the bottom has protruding portion (3231) of side extension, jack (311) that supply extension pole (323) inserted wherein are seted up to the roof board of connecting seat (31) spray body (32) install under the state of connecting seat (31), the roof board of connecting seat (31) is located between protruding portion (3231) and spray body (32).

5. The cleaning machine of claim 2, wherein: the side wall of the connecting seat (31) is provided with a mounting hole (312) for mounting the pushing piece (4), and the pushing piece (4) can move back and forth along the extending direction of the mounting hole (312).

6. The cleaning machine of claim 5, wherein: the bottom wall plate of the connecting seat (31) is provided with a sliding part (5) which can move up and down relative to the connecting seat (31), the upper part of the sliding part (5) is positioned in a cavity (310) of the connecting seat (31), the top surface of the sliding part (5) is provided with an inclined surface (51) which is gradually inclined towards the direction of the mounting hole (312) from top to bottom, and the auxiliary spray arm (3) also comprises an elastic part which acts on the pushing part (4) and enables the pushing part (4) to always have an inward movement trend along the extending direction of the mounting hole (312).

7. The cleaning machine of claim 6, wherein: the bottom wall plate of connecting seat (31) has offered the pilot hole that supplies slider (5) to install, the periphery wall of slider (5) is provided with upper limit plate (52) and lower limit plate (53) of top-down interval arrangement, upper limit plate (52) are located under inclined plane (51), the bottom wall plate of connecting seat (31) is located between upper limit plate (52) and lower limit plate (53).

8. The cleaning machine of claim 6, wherein: the device also comprises a driving mechanism (6) at least used for driving the auxiliary spray arm (3) to move up and down, and the power output end of the driving mechanism (6) is in driving connection with the auxiliary spray arm (3).

9. The cleaning machine of claim 8, wherein: the driving mechanism (6) comprises a motor (61) and a vertically extending screw rod (62), the screw rod (62) is installed on an output shaft of the motor (61), and the sliding piece (5) is provided with an inner screw hole in threaded connection with the screw rod (62).

10. The cleaning machine of claim 1, wherein: the auxiliary spray arm (3) has a state under the main spray arm (2), and in this state, the blocking member blocks the water outlet (202) of the main spray arm (2).

11. The cleaning machine of claim 1, wherein: the blocking piece is a valve plate (21) which can be rotatably arranged at the water outlet (202), the valve plate (21) is positioned in the main flow channel (20), the valve plate (21) comprises a blocking part (211) and a connecting part connected with the main spray arm (2), and the connecting part is an elastic piece (212) which enables the blocking part (211) to always have a movement trend towards the direction of closing the water outlet (202).

12. The cleaning machine of any one of claims 1 to 11, wherein: the cross section of the cleaning box (1) is square, four auxiliary spray arms (3) are respectively arranged at four corners of the cleaning chamber (10), and each auxiliary spray arm (3) is correspondingly provided with one pushing piece (4).

13. The cleaning machine of claim 12, wherein: the water outlets (202) are formed in the opposite side walls of the main spray arm (2), and in a state that the main spray arm (2) rotates to be arranged along the diagonal direction of the washing chamber (10), the main spray arm (2) is connected with at least one auxiliary spray arm (3) positioned on the diagonal line and is in fluid communication with the auxiliary flow channel (30) of the auxiliary spray arm (3).