CN114748010A - 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; the spraying arm is rotatably arranged at a position, adjacent to the bottom, of the washing chamber, a main flow channel is formed in the spraying arm, and a top wall plate of the spraying arm is provided with a water spraying hole communicated with the main flow channel; the fixed spraying piece is relatively fixed in the washing cavity, is annular and is positioned on the periphery of the spraying arm, an auxiliary flow channel communicated with the main flow channel in a fluid manner is arranged in the fixed spraying piece, and a water outlet communicated with the auxiliary flow channel is formed in the top wall plate of the fixed spraying piece. Therefore, the water flow sprayed out of the water outlet holes of the fixed spraying pieces cleans the peripheral area of the spraying arms, the cleaning area is increased, and the all-dimensional cleaning effect is achieved.

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 cleaning machine, as in the chinese invention patent application of the present applicant, a "rotary spray arm for a cleaning machine and a cleaning machine applying the same", the patent application number of which is CN201811440066.7 (application publication number is CN111227749A), discloses a rotary spray arm for a cleaning machine, which includes an upper cover body and a lower cover body that are fastened to each other, a flow channel is formed between the upper cover body and the lower cover body, the upper cover body is provided with an upward first nozzle for spray cleaning, the first nozzle is communicated with the flow channel, cleaning of an object to be cleaned in a washing chamber in the cleaning machine is realized by the rotary spray arm, but since a gap is left between the rotary spray arm and an inner peripheral wall of the washing chamber, a spray area is limited in a rotation process of the rotary spray arm, and a cleaning dead angle is likely to occur.

Accordingly, further improvements to existing washing machines are needed.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide a cleaning machine for cleaning the inside of the washing chamber in all directions, in view of the current state of the prior art.

The invention aims to solve the second technical problem of providing a cleaning machine which can carry out all-directional cleaning and fixed-point cleaning.

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;

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

it is characterized by also comprising:

the fixed spraying piece is fixed in the washing chamber relatively, is annular, is at least partially positioned on the peripheral side of the spraying arm, is internally provided with an auxiliary flow channel communicated with the main flow channel in a fluid mode, and a top wall plate of the fixed spraying piece is provided with a water outlet communicated with the auxiliary flow channel.

In order to improve the all-round cleaning capability, the water outlet holes are arranged at intervals along the circumferential direction of the fixed spraying piece and are positioned at the periphery of the water spraying holes.

The spray arm may be directly mounted on the fixed spray member or may be mounted on the fixed spray member through a connection ring, but from the viewpoint of improving the spraying capability, it is preferable that the fixed spray member is mounted with a ring-shaped connection ring, the connection ring is provided with a hole into which a free end of the spray arm is at least partially inserted, and the connection ring is located at the periphery of the water spray hole of the spray arm.

The technical solution adopted by the present invention to solve the second technical problem is as follows: the connecting ring has a first state fixed relative to the fixed spraying piece and a second state rotating relative to the fixed spraying piece, and the rotating axis of the connecting ring is the rotating axis of the spraying arm when the connecting ring is in the rotating state.

The connecting ring can rotate under the driving of the driving mechanism and can also rotate along with the spray arm, but preferably, the spray arm further comprises a driving mechanism which can drive the connecting ring to rotate at least, and the power output end of the driving mechanism can be in driving connection with the connecting ring. In addition, the driving mechanism can also fix the connecting ring relative to the fixed spraying piece.

Preferably, the outer peripheral wall of the connection ring is provided with a gear ring which is coaxial with the connection ring, the driving mechanism comprises a gear and a driver which is used for driving the gear to rotate and can move along the up-and-down direction, an output shaft of the driver extends vertically, the gear is installed on the output shaft of the driver, and the gear is meshed with the gear ring when the connection ring is in the first state. In addition, a gear can be connected to an output shaft of the motor in a threaded manner (the motor drives the gear to move upwards to be meshed with the gear ring, then the gear is limited to move upwards, and the motor rotates reversely to drive the gear to move downwards to be disconnected from the gear ring). Therefore, the gear ring and the spray arm rotate together under the driving of the motor; and when the motor is in a non-working state and the gear ring is meshed with the gear box, the gear ring and the spray arm are fixed.

The structure of the driver is various, and it can be in the form of the motor with the output shaft only rotating, and it can also be in the form of the motor with the output shaft moving up and down, but preferably, the driver is the motor under the washing box, the output shaft of the motor is partially located in the washing chamber, and is the telescopic piece moving partially along the up and down direction.

The spray arm can be communicated with the secondary flow passage through the connecting ring or can be directly communicated with the secondary flow passage, namely, a part of the free end of the spray arm penetrating through the connecting ring is provided with a through hole communicated with the secondary flow passage, but preferably, the end part of the free end of the spray arm and the connecting ring are correspondingly provided with a through hole communicated with the main flow passage and the secondary flow passage, and the through hole is positioned below the gear ring.

The spray arm can be in a straight shape, can also be in an s shape, and can also be in a herringbone shape, but preferably, the spray arm is in a straight shape, each free end corresponds to a jack, and two ends of the spray arm are inserted into the jacks on the corresponding sides.

In order to realize the installation of fixed spraying and washing case, the bottom downwardly extending of fixed spraying is formed with the extension post, the diapire of washing chamber has the confession on the position that corresponds the extension post extend the sleeve that the post inserted wherein, it connects to extend the post buckle on telescopic inner wall.

Preferably, the outer peripheral wall of the fixed spray member is matched with the inner peripheral wall of the cleaning tank. Therefore, the washing chamber is cleaned in all directions.

The secondary flow channels may be annular or radial, but in order to achieve all-directional cleaning and improve cleaning capability, preferably, the fixed spray part has a plurality of secondary flow channels radially arranged around the connecting ring, each secondary flow channel corresponds to at least one water outlet, and the secondary flow channels are arranged at intervals along the rotation path of the spray arm. Therefore, in the rotating process of the spray arm, water can be supplied into each secondary flow channel step by step, and water flow is sprayed out from the water outlet holes of each secondary flow channel to clean the objects to be cleaned in the washing chamber.

In order to improve the cleaning capability, it is preferable that each of the secondary flow passages corresponds to at least two water outlet holes arranged at intervals along the length direction of the corresponding secondary flow passage.

In order to change the cleaning direction and angle, a spherical spraying ball which can rotate relative to the fixed spraying piece is arranged at the water outlet, a water spraying channel communicated with the inlet of the water outlet is formed in the spraying ball, and the inlet of the water outlet is communicated with the corresponding water spraying channel.

Compared with the prior art, the invention has the advantages that: the fixed spraying piece is annular and is at least partially positioned on the periphery of the spraying arm, so that the periphery of the spraying arm is cleaned by water flow sprayed out of the water outlet of the fixed spraying piece, the cleaning area is increased, and the all-round cleaning effect is achieved.

Drawings

FIG. 1 is a partial schematic structural view of a gear and a gear ring in a meshing state in a cleaning machine according to the present embodiment;

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

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

FIG. 4 is a longitudinal sectional view of a part of the structure of a gear and a ring gear in a non-meshing state in the cleaning machine;

FIG. 5 is a sectional view showing a part of the structure of the washing machine of the present embodiment;

FIG. 6 is a transverse sectional view of a portion of the structure of the washer with the gear and ring gear in a non-engaged condition;

fig. 7 is a schematic structural view of the fixed spraying member of the embodiment.

Detailed Description

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

As shown in fig. 1 to 7, 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 spray arm 2, a fixed spray piece 3, a connecting ring 4, a driving mechanism 5 and a water pumping mechanism 7.

The cleaning tank 1 includes a tank body 1a having an open top and a door (not shown) covering the open top of the tank body. In a state where the door closes the open top of the cabinet 1a, the cabinet 1a and the door enclose to form a washing chamber 10.

As shown in fig. 1 to 4, a diversion seat 13 is disposed at the bottom of the washing chamber 10, the spray arm 2 is rotatably disposed on the diversion seat 13, and the spray arm 2 has a main flow passage 20 therein. The top wall plate of the spray arm 2 has water spray holes 201 communicating with the main flow passage 20, and water is sprayed upward through the water spray holes 201. The spray arm 2 may be in a straight shape, an S shape, or other shapes. The main runner 20 includes a water collecting cavity 20a located in the center and branch runners 20b arranged at intervals along the length direction of the spray arm 2 on both sides of the water collecting cavity 20a, the water collecting cavity 20a is communicated with the branch runners 20b on both sides, and the water spray holes 201 in this embodiment are arranged at positions corresponding to the branch runners 20b, and are provided in plurality and arranged at intervals along the length direction of the branch runners. The bottom wall plate of the spray arm 2 has a water inlet channel near the center, which is communicated with the water collecting cavity 20a, and the water pumping mechanism 7 is used to pump the water at the bottom of the washing chamber 10 to the water collecting cavity 20a of the spray arm 2 through the inner flow channel and the water inlet channel of the flow guide seat 13. The water pumping mechanism in the embodiment adopts the water pumping mechanism in the prior patent application of the applicant, and details are not repeated in the embodiment.

As shown in fig. 1 to 5, the fixed spraying member 3 is relatively fixed in the washing chamber 10, and is annular, and the outer circumferential wall of the fixed spraying member 3 matches with the inner circumferential wall of the washing tank 1. The cross section that fixes the periphery wall that sprays 3 and wash case 1 all is squarely promptly, and the periphery wall that fixes spraying 3 contacts with the internal perisporium that washs case 1. In order to realize the installation of the fixed spraying member 3, the bottom of the fixed spraying member 3 extends downwards to form an extending column 31, the bottom wall of the washing chamber 10 is provided with a sleeve 11 for the extending column 31 to insert into at a position corresponding to the extending column 31, and the extending column 31 is connected on the inner wall of the sleeve 11 in a snapping manner. Specifically, as shown in fig. 5 and fig. 7, the extension column 31 has an elastic buckle 311, the sleeve 11 is provided with a slot 111 at a position corresponding to the elastic buckle 311 for the elastic buckle 311 to be clipped therein, the elastic buckles 311 in the present embodiment are plural and are arranged at intervals on the bottom of the extension column 31 along the circumferential direction of the extension column 31, so that the fixed spraying part 3 is mounted on the inner bottom of the cleaning tank 1 through the snap-fit of the elastic buckle 311 and the corresponding slot 111.

As shown in fig. 3 and 6, the fixed shower 3 has a secondary flow channel 30 in fluid communication with the primary flow channel 20, and the top wall plate of the fixed shower 3 has a water outlet hole 301 in communication with the secondary flow channel 30. The fixed spraying part 3 is at least partially located on the periphery of the spraying arm 2, specifically, the inner annular wall of the fixed spraying part 3 is provided with an annular opening 302 extending along the circumferential direction, and the connecting ring 4 is annular and is embedded in the annular opening 302. The connecting ring 4 is provided with a jack 41 into which the free end of the spray arm 2 is partially inserted, each free end of the spray arm 2 corresponds to one jack 41, two ends of the spray arm 2 are inserted into the jacks 41 on the corresponding sides, that is, the connecting ring 4 is located at the periphery of the part of the spray arm 2, and the part of the fixed spray part 3 is located at the periphery of the spray arm 2, and in addition, the fixed spray part 2 can be located at the periphery of the spray arm 2. The end part of the free end of the spray arm 2 and the connecting ring 4 are correspondingly provided with a through hole 01 for communicating the main flow passage 20 and the secondary flow passage 30, so that the main flow passage 20 of the spray arm 2 is communicated with the secondary flow passage 30 through the connecting ring 4. The connection ring 4 is located on the outer periphery of the water jetting hole 201 of the shower arm 2. Thus, in the process of rotating the spray arm 2 relative to the fixed spray part 3, the connection ring 4 rotates together with the spray arm 2, and the rotation axis of the connection ring 4 is the rotation axis of the spray arm 2, that is, the connection ring 4 can rotate relative to the fixed spray part 3. In addition, the fixed spraying part 3 is internally provided with a plurality of secondary flow passages 30 which are radially arranged by taking the connecting ring 4 as a center, the secondary flow passages 30 are positioned at the periphery of the spraying hole 201, each secondary flow passage 30 is correspondingly provided with at least two water outlet holes 301 which are arranged at intervals along the length direction of the secondary flow passage 30, in the embodiment, each secondary flow passage 30 can be correspondingly provided with one water outlet hole 301 or more than three water outlet holes 301, and each secondary flow passage 30 is arranged at intervals along the rotating path of the spraying arm 2, so that the water outlet holes on the fixed spraying part 3 are arranged at intervals along the circumferential direction of the spraying arm 2. In order to change the water outlet direction of the water outlet hole, a spherical spraying ball 32 which can rotate relative to the fixed spraying piece 3 is arranged at the water outlet hole 301, a water spraying channel 321 communicated with the inlet of the water outlet hole 301 is formed in the spraying ball 32, and the inlet of the water outlet hole 301 is communicated with the corresponding water spraying channel 321. Thus, the spray ball 32 rotates relative to the fixed spray member 3 under the impact of the water flow entering from the inlet of the water outlet hole 301, thereby changing the direction of the water flow sprayed from the spray ball 32. In this embodiment, the spraying ball 32 is installed at the corner of the top wall plate for fixing the spraying member, so that the corner of the washing chamber can be cleaned, thereby preventing the occurrence of a cleaning dead angle.

In addition, the connecting ring 4 may be fixed relative to the fixed spraying member 3, and specifically, the power output end of the driving mechanism 5 may be in driving connection with the connecting ring 4, so as to drive the connecting ring 4 to rotate or fix the connecting ring 4, that is, the driving mechanism 5 may drive the connecting ring 4 to rotate at least. Specifically, as shown in fig. 2 and 4, the upper side of the outer peripheral wall of the connection ring 4 has a ring gear 42 arranged coaxially with the connection ring 4, and the above-mentioned through opening 01 is located below the ring gear 42. The driving mechanism 5 includes a gear 52 and a driver for driving the gear 52 to rotate and move along the up-and-down direction, an output shaft of the driver extends vertically, the gear 52 is mounted on the output shaft of the driver, and when the connection ring 4 is in the first state, the gear 52 is engaged with the gear ring 42. The driver of the present embodiment is a motor 51 located under the washing tank 1, and an output shaft of the motor 51 is partially located in the washing chamber 10 and is a telescopic member partially moving in an up-and-down direction. The telescopic part can adopt a fixed rod 53 and a movable rod 54 which is connected to the fixed rod in a threaded manner, a gear 52 is arranged on the movable rod 54, when the motor 51 drives the fixed rod 53 to rotate and drives the movable rod to move upwards to the state that the gear is meshed with the gear ring, the movable rod is limited to move upwards relative to the fixed rod by arranging a limiting part, and at the moment, the gear rotates and then drives the gear ring to rotate under the driving of the motor; when the motor rotates reversely, the movable rod is driven to move downwards until the gear and the gear ring are in a disengaged non-meshing state. In addition, the driving mechanism can also adopt a mode that a gear is in threaded connection with the output shaft of the motor.

The working process of the cleaning machine is as follows:

when normally cleaning, at this time, as shown in fig. 4, the gear 52 is in a non-meshed state with the ring gear 42, under the action of the water pumping mechanism 7, water is driven to be pumped into the water flow channel of the spray arm 2 through the diversion seat 13, thereby driving the spray arm 2 to rotate relative to the diversion seat 13, because the two ends of the spray arm 2 are embedded on the connecting ring 4, at the moment, the connecting ring 4 is driven to rotate synchronously during the rotation of the spray arm 2, so that the water flowing out from the main channel 20 of the spray arm 2, gradually enter into each auxiliary runner 30 of the fixed spraying part 3, and are sprayed out through the water outlet holes of the auxiliary runners 30, at the moment, the spraying ball 32 rotates under the pushing of the water flow entering from the water outlet holes, the rotating spraying ball 32 generates water flow with various directions changing constantly, and then the spraying of the water spraying holes of the spraying arm 2 in the middle area is combined, so that the all-round cleaning of the whole area in the washing chamber can be realized.

When the fixed-point cleaning is needed, the motor 51 drives the gear 52 to move upwards, at the moment, as shown in fig. 2, the gear 52 is meshed with the gear ring 42 box, at the moment, if the motor 51 stops working, under the action of the water pumping mechanism 7, the spray arm 2 can rotate, but because the motor 51 stops working, the gear ring 42 is fixed, the generated braking force is far greater than the water flow reverse acting force generated by the water pumping mechanism acting, namely, the spray arm 2 and the connecting ring 4 are fixed, and the water flowing into the auxiliary flow passage 30 through the main flow passage 20 is sprayed out through the spray balls to realize the fixed-point comprehensive cleaning of a certain position in the washing chamber. When the fixed point cleaning position needs to be adjusted, the motor 51 works, the gear ring 42 is driven to rotate through the gear 52, because the two ends of the spray arm 2 are positioned in the connecting ring 4, at the moment, the spray arm 2 and the connecting ring 4 rotate together under the driving of the motor 51, when the spray arm 2 rotates to a required position, the motor 51 stops working, at the moment, the spray arm 2 and the connecting ring 4 are both fixed relative to the fixed spray part 3, water enters the main flow passage 20 under the action of the water pumping mechanism 7, fixed point cleaning is carried out in the washing chamber by utilizing water flow sprayed from the water spraying holes 201 on the spray arm 2 and multi-direction water flow sprayed from the spray balls 32 on the fixed spray part 3, and the cleaning effect is improved. In addition, the rotating speed of the motor 51 can be controlled, the rotating speed change of the gear ring 42 is realized, and the variable-speed washing of the whole washing system is realized, so that the washing of different pollutants is realized.

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 parts and elements of the present invention, but these terms are used herein for convenience of description only and are determined based on 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 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 from the first portion along a flow path or/and 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 member, such as a fluid channel, e.g., a pipe, a channel, a conduit, a flow guide, a hole, a groove, or a chamber that allows a fluid to flow therethrough, or a combination thereof.

Claims (14)

1. A cleaning machine comprising:

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

a spray arm (2) rotatably disposed at a position adjacent to a bottom of the washing chamber (10), having a main flow passage (20) therein, a top wall plate of the spray arm (2) having a water spray hole (201) communicating with the main flow passage (20);

it is characterized by also comprising:

and the fixed spraying piece (3) is fixed in the washing chamber (10) relatively, is annular, is at least partially positioned on the peripheral side of the spraying arm (2), is internally provided with an auxiliary flow passage (30) communicated with the main flow passage (20) in a fluid manner, and a top wall plate of the fixed spraying piece (3) is provided with a water outlet (301) communicated with the auxiliary flow passage (30).

2. The cleaning machine of claim 1, wherein: the water outlet holes (301) are arranged at intervals along the circumferential direction of the fixed spraying piece (3) and are positioned at the periphery of the water spraying holes (201).

3. The cleaning machine of claim 1, wherein: the fixed spraying piece (3) is provided with an annular connecting ring (4), the connecting ring (4) is provided with a jack (41) for the free end of the spraying arm (2) to be at least partially inserted into, and the connecting ring (4) is positioned on the periphery of a water spraying hole (201) of the spraying arm (2).

4. The cleaning machine of claim 3, wherein: the connecting ring (4) has a first state of being fixed relative to the fixed spraying piece (3) and a second state of rotating relative to the fixed spraying piece (3), and when the connecting ring (4) is in a rotating state, the rotating axis of the connecting ring (4) is the rotating axis of the spraying arm (2).

5. The cleaning machine of claim 4, wherein: the device is characterized by further comprising a driving mechanism (5) capable of driving the connecting ring (4) to rotate at least, and a power output end of the driving mechanism (5) can be in driving connection with the connecting ring (4).

6. The cleaning machine of claim 5, wherein: the outer peripheral wall of the connecting ring (4) is provided with a gear ring (42) which is coaxial with the connecting ring (4), the driving mechanism (5) comprises a gear (52) and a driver which is used for driving the gear (52) to rotate and can move along the up-and-down direction, an output shaft of the driver extends vertically, the gear (52) is installed on the output shaft of the driver, and in the first state of the connecting ring (4), the gear (52) is meshed with the gear ring (42).

7. The cleaning machine of claim 6, wherein: the driver is a motor (51) positioned below the cleaning box (1), an output shaft of the motor (51) is partially positioned in the washing chamber (10) and is a telescopic piece which partially moves along the up-down direction.

8. The cleaning machine of claim 6, wherein: the end part of the free end of the spray arm (2) and the connecting ring (4) are correspondingly provided with a through hole (01) for communicating the main flow passage (20) and the secondary flow passage (30), and the through hole (01) is positioned below the gear ring (42).

9. The washing machine as claimed in claim 2, wherein: the spray arm (2) is in a straight line shape, each free end corresponds to a jack (41), and two ends of the spray arm (2) are inserted into the jacks (41) on the corresponding sides.

10. The washing machine as claimed in claim 1, wherein: the bottom downwardly extending of fixed shower (3) is formed with extension post (31), the diapire of washing chamber (10) has the confession on the position that corresponds extension post (31) extend sleeve (11) that wherein extension post (31) inserted, extension post (31) snap-fit connection be in on the inner wall of sleeve (11).

11. The washing machine as claimed in claim 1, wherein: the outer peripheral wall of the fixed spraying piece (3) is matched with the inner peripheral wall of the cleaning box (1).

12. The cleaning machine of any one of claims 2 to 11, wherein: the fixed spraying piece (3) is internally provided with a plurality of auxiliary flow channels (30) which are radially arranged by taking the connecting ring (4) as the center, each auxiliary flow channel (30) is correspondingly provided with at least one water outlet hole (301), and the auxiliary flow channels (30) are arranged at intervals along the rotating path of the spraying arm (2).

13. The washing machine as claimed in claim 12, wherein: each auxiliary flow channel (30) corresponds to at least two water outlet holes (301) which are arranged at intervals along the length direction of the corresponding auxiliary flow channel (30).

14. The washing machine as claimed in claim 12, wherein: the spherical spraying ball (32) capable of rotating relative to the fixed spraying piece (3) and being spherical is installed at the water outlet hole (301), a water spraying channel (321) communicated with an inlet of the water outlet hole (301) is formed in the spraying ball (32), and the inlet of the water outlet hole (301) is communicated with the corresponding water spraying channel (321).

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