Cleaning Machine

Abstract

The present invention relates to a cleaning machine, comprising a cleaning box, which has a cleaning chamber inside; a spray arm, which can be rotatably arranged at a position near the bottom of the cleaning chamber, and has a main flow channel inside, and the top wall plate of the spray arm has a water spray hole connected to the main flow channel; a fixed spray part, which is relatively fixed in the cleaning chamber, is annular, and is located on the peripheral side of the spray arm, and has a secondary flow channel connected to the fluid of the main flow channel inside, and the top wall plate of the fixed spray part has a water outlet hole connected to the secondary flow channel. In this way, the water flow sprayed through the water outlet hole of the fixed spray part cleans the area around the spray arm, thereby increasing the cleaning area, improving the cleaning area, and achieving an all-round cleaning effect.

Description

Technical Field

[0001] The invention belongs to the field of household appliances, and in particular relates to a cleaning machine. Background Art

[0002] A cleaning machine is a device that sprays cold or hot water onto dishes to remove dirt adhered to the dishes or fruits and vegetables and clean the dishes or fruits and vegetables. Existing spray cleaning machines generally achieve spraying in all directions by rotating a sprayer.

[0003] The current cleaning machine, such as the Chinese invention patent application previously applied by the applicant, "Rotating spray arm for cleaning machine and cleaning machine using the rotating spray arm", whose patent application number is CN201811440066.7 (application publication number is CN111227749A), discloses a rotating spray arm for a cleaning machine, including an upper cover body and a lower cover body that are interlocked with each other, a flow channel is formed between the upper cover body and the lower cover body, and a first nozzle facing upward for spray cleaning is opened on the upper cover body. The first nozzle is connected to the flow channel, and the cleaning of the objects to be cleaned in the washing chamber of the cleaning machine is achieved by the rotating spray arm. However, due to the gap between the rotating spray arm and the inner circumferential wall of the washing chamber, the spraying area is limited during the rotation of the rotating spray arm, and cleaning dead corners are easily generated.

[0004] Therefore, it is necessary to further improve the existing cleaning machine. Summary of the invention

[0005] The first technical problem to be solved by the present invention is to provide a cleaning machine for all-round cleaning in a washing chamber in view of the current status of the above-mentioned prior art.

[0006] The second technical problem to be solved by the present invention is to provide a cleaning machine which can perform both all-round cleaning and fixed-point cleaning.

[0007] The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: a cleaning machine, comprising:

[0008] a cleaning box having a washing chamber therein;

[0009] A spray arm is rotatably arranged at a position near the bottom of the washing chamber, and has a main flow channel inside. The top wall plate of the spray arm has a water spray hole connected to the main flow channel;

[0010] It is characterized by also including:

[0011] A fixed spraying member is relatively fixed in the washing chamber and is annular, at least partially located on the peripheral side of the spraying arm, and has a secondary flow channel connected to the main flow channel fluid. The top wall plate of the fixed spraying member has a water outlet connected to the secondary flow channel.

[0012] In order to improve the all-round cleaning capability, there are a plurality of water outlet holes, which are arranged at intervals along the circumference of the fixed spraying member and are located at the periphery of the water spray holes.

[0013] The spray arm can be directly installed on the fixed spray part, and can also be installed on the fixed spray part through a connecting ring. However, from the perspective of improving the spraying capacity, preferably, the fixed spray part is installed with an annular connecting ring, and the connecting ring is provided with a socket for the free end of the spray arm to be at least partially inserted therein, and the connecting ring is located on the periphery of the water spray hole of the spray arm.

[0014] The technical solution adopted by the present invention to solve the above-mentioned second technical problem is: the connecting ring has a first state fixed relative to the fixed spray part and a second state rotating relative to the fixed spray part. When the connecting ring is in the rotating state, the rotation axis of the connecting ring is the rotation axis of the spray arm.

[0015] The connecting ring can rotate under the drive of the driving mechanism, or can rotate with the spray arm, but preferably, it also includes a driving mechanism that can drive the connecting ring to at least rotate, and the power output end of the driving mechanism can be drivingly connected to the connecting ring. In addition, the driving mechanism can also fix the connecting ring relative to the fixed spray element.

[0016] Preferably, the outer peripheral wall of the connecting ring has a gear ring coaxially arranged with the connecting ring, and the driving mechanism includes a gear and a driver for driving the gear to rotate and move in the up and down directions, the output shaft of the driver extends vertically, the gear is installed on the output shaft of the driver, and when the connecting ring is in the first state, the gear is meshed with the gear ring. In addition, the gear can also be threadedly connected to the output shaft of the motor (the motor drives the gear to move upward to mesh with the gear ring, then restricts the gear from moving upward, and drives the gear to move downward to disengage from the gear ring through the reverse rotation of the motor). In this way, driven by the motor, the gear ring and the spray arm rotate together; and when the motor is in a non-working state and the gear ring and the gear box are meshed, the gear ring and the spray arm are fixed.

[0017] There are many structural forms of the driver, which can be a motor whose output shaft only rotates, or a motor whose output shaft moves up and down. However, preferably, the driver is a motor located under the cleaning box, and the output shaft of the motor is partially located in the washing chamber and is a telescopic part that moves partially in the up and down direction.

[0018] The spray arm can be connected to the secondary flow channel through a connecting ring, or directly connected to the secondary flow channel, that is, the part of the free end of the spray arm that passes through the connecting ring is provided with a through opening connected to the secondary flow channel, but preferably, the end of the free end of the spray arm and the connecting ring are correspondingly provided with a through opening connecting the main channel and the secondary flow channel, and the through opening is located under the gear ring.

[0019] The spray arm can be in a straight line shape, an S shape, or a herringbone shape, but preferably, the spray arm is in a straight line shape, each free end corresponds to a socket, and both ends of the spray arm are inserted into the sockets on the corresponding sides.

[0020] In order to realize the installation of the fixed spray part and the cleaning box, the bottom of the fixed spray part extends downward to form an extension column, and the bottom wall of the washing chamber has a sleeve for inserting the extension column at the position corresponding to the extension column, and the extension column is snap-connected to the inner wall of the sleeve.

[0021] Preferably, the outer peripheral wall of the fixed spraying member matches the inner peripheral wall of the cleaning box, so that all-round cleaning of the washing chamber is achieved.

[0022] The secondary flow channel can be annular or radial, but in order to achieve all-round cleaning and improve the cleaning ability, preferably, the fixed spray part has a plurality of secondary flow channels arranged radially with the connecting ring as the center, each secondary flow channel corresponds to at least one water outlet, and each of the secondary flow channels is arranged at intervals along the rotation path of the spray arm. In this way, during the rotation of the spray arm, water can be gradually supplied to each secondary flow channel, and water is sprayed through the water outlet holes of each secondary flow channel to clean the objects to be cleaned in the washing chamber.

[0023] In order to improve the cleaning ability, preferably, each of the secondary flow channels corresponds to at least two water outlet holes arranged at intervals along the length direction of the corresponding secondary flow channel.

[0024] In order to change the cleaning direction and angle, a spherical spray ball which can rotate relative to the fixed spray part is installed at the water outlet. The spray ball is provided with a water spray channel connected to the inlet of the water outlet. The inlet of the water outlet is connected to the corresponding water spray channel.

[0025] Compared with the prior art, the advantages of the present invention are that the fixed spray part is annular and at least partially located on the peripheral side of the spray arm. In this way, the water flow sprayed through the water outlet of the fixed spray part cleans the area around the spray arm, thereby increasing the cleaning area, improving the cleaning area, and achieving an all-round cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a partial structural schematic diagram of the cleaning machine of this embodiment in which the gear and the gear ring are in a meshing state;

[0027] Figure 2 for Figure 1 A longitudinal cross-sectional view of

[0028] Figure 3 for Figure 1 A transverse cross-sectional view of

[0029] Figure 4 It is a longitudinal cross-sectional view of a part of the structure of the cleaning machine in which the gear and the gear ring are in a non-meshing state;

[0030] Figure 5 is a cross-sectional view of a portion of the structure of the cleaning machine of this embodiment;

[0031] Figure 6 It is a transverse cross-sectional view of a part of the structure of the gear and the gear ring in the cleaning machine in a non-meshing state;

[0032] Figure 7 Schematic diagram of the structure of the fixed spray part of this embodiment. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below with reference to the accompanying drawings.

[0034] like Figures 1 to 7 As shown, the cleaning machine of this embodiment is a cleaning machine for cleaning fruits and vegetables or dishes. The cleaning machine comprises a cleaning box 1, a spray arm 2, a fixed spray member 3, a connecting ring 4, a driving mechanism 5 and a water pump mechanism 7.

[0035] The above-mentioned cleaning box 1 comprises a box body 1a with an open top and a door body (not shown) covering the top opening of the box body. When the door body closes the top opening of the box body 1a, the box body 1a and the door body enclose to form a washing chamber 10.

[0036] like Figures 1 to 4As shown, a guide seat 13 is provided at the bottom of the washing chamber 10, and the spray arm 2 can be rotatably arranged on the guide seat 13, and the interior of the spray arm 2 has a main flow channel 20. The top wall plate of the spray arm 2 has a water spray hole 201 connected to the main flow channel 20, and water flows upward through the water spray hole 201. The aforementioned spray arm 2 is in a straight line shape as a whole, and can also be in an S shape, or other shapes. The main flow channel 20 includes a water collecting chamber 20a located in the center and branch channels 20b arranged at intervals on both sides of the water collecting chamber 20a along the length direction of the spray arm 2. The water collecting chamber 20a is connected to the branch channels 20b on both sides. The water spray holes 201 in this embodiment are arranged at the position corresponding to the branch channel 20b, and there are multiple water spray holes 201, which are arranged at intervals along the length direction of the branch channel. The bottom wall plate of the aforementioned spray arm 2 has a water inlet channel connected to the water collecting chamber 20a near the center, and the water pumping mechanism 7 is used to pump the water at the bottom of the washing chamber 10 into the water collecting chamber 20a of the spray arm 2 through the internal flow channel of the guide seat 13 and the water inlet channel. The water pumping mechanism in this embodiment adopts the water pumping mechanism in the patent previously applied by the applicant, and will not be described in detail in this embodiment.

[0037] like Figures 1 to 5 As shown, the fixed spray part 3 is relatively fixed in the washing chamber 10, and is annular, and the outer peripheral wall of the fixed spray part 3 matches the inner peripheral wall of the washing box 1. That is, the cross-sections of the outer peripheral wall of the fixed spray part 3 and the washing box 1 are both square, and the outer peripheral wall of the fixed spray part 3 is in contact with the inner peripheral wall of the washing box 1. In order to achieve the installation of the fixed spray part 3, the bottom of the fixed spray part 3 extends downward to form an extension column 31, and the bottom wall of the washing chamber 10 has a sleeve 11 for the extension column 31 to be inserted into the sleeve 11 at the position corresponding to the extension column 31, and the extension column 31 is snap-connected to the inner wall of the sleeve 11. Specifically, as shown in FIG. Figure 5 and Figure 7 As shown, the extension column 31 has an elastic clip 311, and the sleeve 11 is provided with a slot 111 for the elastic clip 311 to be snapped into at a position corresponding to the elastic clip 311. There are multiple elastic clips 311 in this embodiment, and they are arranged at intervals along the circumference of the extension column 31 on the bottom of the extension column 31. In this way, the fixed spray part 3 is installed on the inner bottom of the cleaning box 1 through the snap-fitting of the elastic clip 311 and the corresponding slot 111.

[0038] like Figure 3 and Figure 6As shown, the interior of the fixed spray part 3 has a secondary flow channel 30 in fluid communication with the main flow channel 20, and the top wall plate of the fixed spray part 3 has a water outlet 301 in communication with the secondary flow channel 30. The fixed spray part 3 is at least partially located on the peripheral side of the spray arm 2. Specifically, the inner ring wall of the fixed spray part 3 is provided with an annular opening 302 extending along the circumferential direction, and the connecting ring 4 is annular and embedded in the annular opening 302. The connecting ring 4 is provided with a plug hole 41 for partially inserting the free end of the spray arm 2. Each free end of the spray arm 2 corresponds to a plug hole 41, and both ends of the spray arm 2 are inserted into the plug holes 41 on the corresponding side, that is, the connecting ring 4 is located at the periphery of the part of the spray arm 2, and the fixed spray part 3 is partially located at the periphery of the spray arm 2. In addition, the fixed spray part 2 can be completely located at the periphery of the spray arm 2. The end of the free end of the spray arm 2 and the connecting ring 4 are correspondingly provided with a through hole 01 connecting the main flow channel 20 and the secondary flow channel 30, so that the main flow channel 20 of the spray arm 2 is connected with the secondary flow channel 30 through the connecting ring 4. In addition, the connecting ring 4 is located at the periphery of the water spray hole 201 of the spray arm 2. In this way, when the spray arm 2 rotates relative to the fixed spray part 3, the connecting ring 4 rotates with the spray arm 2, and the rotation axis of the connecting ring 4 is the rotation axis of the spray arm 2, that is, the connecting ring 4 can rotate relative to the fixed spray part 3. In addition, the fixed spray part 3 has a plurality of secondary flow channels 30 arranged radially with the connecting ring 4 as the center. The secondary flow channels 30 are located at the periphery of the spray hole 201. Each secondary flow channel 30 corresponds to at least two water outlet holes 301 arranged at intervals along the length direction of the secondary flow channel 30. In this embodiment, each secondary flow channel 30 may correspond to one water outlet hole 301, or may correspond to three or more water outlet holes 301. Each secondary flow channel 30 is arranged at intervals along the rotation path of the spray arm 2, so that the plurality of water outlet holes on the fixed spray part 3 are arranged at intervals along the circumference of the spray arm 2. In order to change the water outlet direction of the water outlet hole, a spherical spray ball 32 that can rotate relative to the fixed spray part 3 is installed at the water outlet hole 301. The spray ball 32 is provided with a water spray channel 321 connected to the inlet of the water outlet hole 301, and the inlet of the water outlet hole 301 is connected to the corresponding water spray channel 321. In this way, the spray ball 32 rotates relative to the fixed spray part 3 under the impact of the water flow entering from the inlet of the water outlet 301, thereby changing the direction of the water flow sprayed by the spray ball 32. In this embodiment, the spray ball 32 is installed at the corner of the top wall plate of the fixed spray part, so that the corner of the washing chamber can be cleaned to prevent the occurrence of cleaning dead corners.

[0039] In addition, the connecting ring 4 can also be fixed relative to the fixed spraying element 3. Specifically, the power output end of the driving mechanism 5 can be connected to the connecting ring 4 to drive the connecting ring 4, thereby driving the connecting ring 4 to rotate or to fix the connecting ring 4. That is, the driving mechanism 5 can drive the connecting ring 4 to at least rotate. Figure 2 and Figure 4As shown, the upper side of the outer peripheral wall of the connecting ring 4 has a gear ring 42 coaxially arranged with the connecting ring 4, and the through opening 01 is located below the gear ring 42. The driving mechanism 5 includes a gear 52 and a driver for driving the gear 52 to rotate and move in the up and down direction. The output shaft of the driver extends vertically, and the gear 52 is installed on the output shaft of the driver. When the connecting ring 4 is in the first state, the gear 52 is meshed with the gear ring 42. The driver of this embodiment is a motor 51 located below the washing box 1, and the output shaft of the motor 51 is partially located in the washing chamber 10 and is a telescopic member that partially moves in the up and down direction. The telescopic member can be a fixed rod 53 and a movable rod 54 threadedly connected to the fixed rod, and the gear 52 is installed on the movable rod 54. When the motor 51 drives the fixed rod 53 to rotate, the movable rod is driven to move upward until the gear and the gear ring are meshed. The movable rod is limited to move upward relative to the fixed rod by setting a limiter. At this time, driven by the motor, the gear rotates and then drives the gear ring to rotate; when the motor rotates in the opposite direction, the movable rod is driven to move downward until the gear and the gear ring are in a disengaged non-meshing state. In addition, the driving mechanism can also be in the form of a gear threadedly connected to the output shaft of the motor.

[0040] The working process of the above cleaning machine is as follows:

[0041] When cleaning normally, at this time, Figure 4 As shown, the gear 52 and the gear ring 42 are in a non-meshing state. Under the action of the water pumping mechanism 7, the water is driven to flow through the guide seat 13 and pumped into the water flow channel of the spray arm 2, thereby driving the spray arm 2 to rotate relative to the guide seat 13. Since both ends of the spray arm 2 are embedded in the connecting ring 4, at this time, the connecting ring 4 is driven to rotate synchronously during the rotation of the spray arm 2. In this way, the water flowing out through the main channel 20 of the spray arm 2 gradually enters the various secondary flow channels 30 of the fixed spray part 3 during the rotation of the spray arm 2, and is sprayed out through the water outlet holes of the secondary flow channels 30. At this time, the spray ball 32 rotates under the impetus of the water flow entering the water outlet hole, and the rotating spray ball 32 generates water flows of various directions that change at all times. Combined with the injection of the water spray holes of the spray arm 2 itself in the middle area, all-round cleaning of the entire area in the washing chamber can be achieved.

[0042] When spot cleaning is required, the motor 51 drives the gear 52 to move upward. Figure 2As shown, the gear 52 is meshed with the ring gear 42. At this time, if the motor 51 stops working, the spray arm 2 can rotate under the action of the water pumping mechanism 7. However, since the motor 51 stops working, the ring gear 42 is fixed at this time, and the braking force generated is much larger than the reverse force of the water flow generated by the work of the water pumping mechanism. That is, the spray arm 2 and the connecting ring 4 are both fixed, and the water flowing through the main channel 20 to the secondary channel 30 is sprayed out by the spray ball to achieve comprehensive cleaning of a fixed position in the washing chamber. When it is necessary to adjust the fixed-point cleaning position, the motor 51 works, and drives the gear ring 42 to rotate through the gear 52. Since the two ends of the spray arm 2 are located in the connecting ring 4, at this time, the spray arm 2 and the connecting ring 4 rotate together under the drive of the motor 51. When the spray arm 2 rotates to the required position, the motor 51 stops working. At this time, the spray arm 2 and the connecting ring 4 are both immovable relative to the fixed spray part 3. Under the action of the water pump mechanism 7, water enters the main channel 20, and the water flow sprayed from the water spray hole 201 on the spray arm 2 and the multi-directional water flow sprayed from the spray ball 32 on the fixed spray part 3 are used to perform fixed-point cleaning in the washing chamber, thereby improving the cleaning effect. In addition, the speed of the motor 51 can be controlled to achieve the speed change of the gear ring 42, and the variable speed washing of the entire cleaning system can be achieved, so as to clean different pollutants.

[0043] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0044] The "fluid connection" referred to in the present invention refers to the spatial position relationship between two parts or parts (hereinafter collectively referred to as the first part and the second part respectively), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

Claims

1. A cleaning machine, comprising: A cleaning box (1) having a washing chamber (10) therein; A spray arm (2) is rotatably arranged at a position near the bottom of the washing chamber (10), and has a main flow channel (20) inside. The top wall plate of the spray arm (2) has a water spray hole (201) connected to the main flow channel (20); It is characterized in that Also included are: A fixed spraying member (3) which is relatively fixed in the washing chamber (10) and is annular and at least partially located on the peripheral side of the spraying arm (2), and has a secondary flow channel (30) in the interior thereof which is fluidically connected to the primary flow channel (20); a top wall plate of the fixed spraying member (3) has a water outlet hole (301) which is connected to the secondary flow channel (30); There are a plurality of water outlet holes (301), which are arranged at intervals along the circumference of the fixed spraying member (3) and are located outside the water spraying hole (201); The fixed spraying member (3) is provided with an annular connecting ring (4), the connecting ring (4) is provided with an insertion hole (41) for at least partially inserting the free end of the spraying arm (2), and the connecting ring (4) is located at the periphery of the water spraying hole (201) of the spraying arm (2); The connecting ring (4) has a first state in which it is fixed relative to the fixed spraying part (3) and a second state in which it is rotated relative to the fixed spraying part (3). When the connecting ring (4) is in the rotating state, the rotation axis of the connecting ring (4) is the rotation axis of the spraying arm (2).

2. The cleaning machine according to claim 1, characterized in that: It also includes a driving mechanism (5) capable of driving the connecting ring (4) to at least rotate, and a power output end of the driving mechanism (5) can be drivingly connected to the connecting ring (4).

3. The cleaning machine according to claim 2, characterized in that: The outer peripheral wall of the connecting ring (4) has a gear ring (42) arranged coaxially with the connecting ring (4), and the driving mechanism (5) includes a gear (52) and a driver for driving the gear (52) to rotate and move in an up-and-down direction, the output shaft of the driver extending vertically, the gear (52) being mounted on the output shaft of the driver, and when the connecting ring (4) is in a first state, the gear (52) is meshed with the gear ring (42).

4. The cleaning machine according to claim 3, characterized in that: The driver is a motor (51) located below the washing box (1); an output shaft of the motor (51) is partially located in the washing chamber (10) and is a telescopic member that partially moves in an up-and-down direction.

5. The cleaning machine according to claim 3, characterized in that: A through opening (01) connecting the main flow channel (20) and the secondary flow channel (30) is correspondingly provided at the end of the free end of the spray arm (2) and the connecting ring (4), and the through opening (01) is located below the gear ring (42).

6. The cleaning machine according to claim 1, characterized in that: The spray arm (2) is in a straight line shape, and each free end corresponds to a plug hole (41). Both ends of the spray arm (2) are inserted into the plug holes (41) on the corresponding sides.

7. The cleaning machine according to claim 1, characterized in that: The bottom of the fixed spraying member (3) extends downward to form an extension column (31), and the bottom wall of the washing chamber (10) has a sleeve (11) at a position corresponding to the extension column (31) for the extension column (31) to be inserted therein, and the extension column (31) is snap-connected to the inner wall of the sleeve (11).

8. The cleaning machine according to claim 1, characterized in that: The outer peripheral wall of the fixed spraying part (3) matches the inner peripheral wall of the cleaning box (1).

9. The cleaning machine according to any one of claims 1 to 8, characterized in that: The fixed spraying part (3) has a plurality of auxiliary flow channels (30) arranged radially with the connecting ring (4) as the center, each auxiliary flow channel (30) corresponds to at least one water outlet hole (301), and the auxiliary flow channels (30) are arranged at intervals along the rotation path of the spraying arm (2).

10. The cleaning machine according to claim 9, characterized in that: Each of the secondary flow channels (30) corresponds to at least two water outlet holes (301) arranged at intervals along the length direction of the corresponding secondary flow channel (30).

11. The cleaning machine according to claim 9, characterized in that: A spherical spray ball (32) is mounted at the water outlet (301) and is rotatable relative to the fixed spray component (3). The spray ball (32) is provided with a water spray channel (321) connected to the inlet of the water outlet (301). The inlet of the water outlet (301) is connected to the corresponding water spray channel (321).

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