CN217645173U

CN217645173U - A spray arm and cleaning machine for cleaning machine

Info

Publication number: CN217645173U
Application number: CN202221003448.5U
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: 2022-10-25
Anticipated expiration: 2032-04-26

Abstract

The utility model relates to a spray arm for a cleaning machine and the cleaning machine, in particular to a spray arm for a cleaning machine, which comprises a mounting seat used for being fixed relatively to the cleaning machine; the main spray arm is rotatably arranged on the mounting seat and internally provided with a main runner; the auxiliary spray arm can be rotatably arranged at the position close to the end part of the main spray arm, a sub-runner communicated with the main runner is arranged in the auxiliary spray arm, and a spray hole for spraying water flow is formed in the top wall and/or the side wall of the auxiliary spray arm; and the power input end of the linkage assembly is arranged to rotate around the mounting seat, and the power output end of the linkage assembly is in transmission connection with the auxiliary spraying arm and is used for driving the auxiliary spraying arm to rotate relative to the main spraying arm. The auxiliary spray arm and the main spray arm form a larger spray area; the spray arm is applied to the cleaning machine, and when the main spray arm is arranged along the diagonal line, the auxiliary spray arm cleans the corners of the cleaning machine, so that the cleaning dead angle is avoided.

Description

A spray arm and cleaning machine for cleaning machine

Technical Field

The utility model belongs to the technical field of the cleaning machine, concretely relates to spray arm and cleaning machine for 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 current cleaning machine, like the Chinese utility model patent of the applicant's prior application, discloses a spray arm and a cleaning machine applying the spray arm, the patent number of which is ZL201721289180.5 (the publication number of CN 208610787U), which comprises a main spray arm, wherein the main spray arm is hollow and is formed with at least two shunt channels, and the end surface of the main spray arm is provided with at least two water outlet holes respectively communicated with the corresponding shunt channels; and at least two auxiliary spraying arms which are respectively rotatably arranged on the corresponding water outlet holes and communicated with the water outlet holes, and the auxiliary spraying arms are provided with water spraying holes and can rotate under the action of water flow sprayed from the water spraying holes. This patent is through being provided with two at least vice spray arms on main spray arm, can enlarge injection area effectively, spray arm includes main spray arm and vice spray arm promptly, thereby improve clean rate, but vice spray arm relies on the hole for water spraying blowout rivers effect down rotatory completely, when not moving the dead angle, vice spray arm forms the biggest injection area with main spray arm, when moving the dead angle, vice spray arm rotates to deviating from the length direction of main spray arm on the contrary, its injection area reduces on the contrary and can't effectively spray the dead angle, the reliability is relatively poor.

Accordingly, further improvements to existing spray arms are needed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the first technical problem that will solve is to above-mentioned prior art's current situation, provides a spray arm for cleaning machine of reliable increase washing area.

The second technical problem to be solved by the utility model is to provide a cleaning machine with the above-mentioned spray arm.

The third technical problem to be solved by the utility model is to provide a cleaning machine which can fully clean the corners of the box body.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: a spray arm for a cleaning machine comprises a mounting seat used for being fixed relative to the cleaning machine;

the main spray arm is rotatably arranged on the mounting seat and internally provided with a main runner;

the auxiliary spray arm can be rotatably arranged at the position close to the end part of the main spray arm, a sub-runner communicated with the main runner is arranged in the auxiliary spray arm, and a spray hole for spraying water flow is formed in the top wall and/or the side wall of the auxiliary spray arm;

it is characterized by also comprising:

and the power input end of the linkage assembly is arranged to rotate around the mounting seat, and the power output end of the linkage assembly is in transmission connection with the auxiliary spraying arm and is used for driving the auxiliary spraying arm to rotate relative to the main spraying arm.

The structural style of linkage subassembly has the multiple, but preferably, the linkage subassembly including along the connecting rod that the length direction of main spray arm extends, the connecting rod is along the length direction of main spray arm is located with sliding main spray arm orientation the first face of mount pad, the slide along its circumference extension is seted up to the mount pad, the first end of connecting rod has can slide and locates slide portion in the slide, and the second end of this connecting rod is equipped with the extension rod of crossing the arrangement with this connecting rod, the guide way of extending along self length direction is seted up to the extension rod, the extending direction of the axis of rotation of vice spray arm with the extending direction of the axis of rotation of main spray arm is unanimous, and have with guide way sliding fit's convex part.

The link may be provided with a guide rail extending in the longitudinal direction of the main spray arm on a first surface of the main spray arm, and the link may be provided slidably on the guide rail in this case, or may be provided in another form.

In order to realize that the maximum included angle is formed between the auxiliary spray arm and the main spray arm, the slide way is provided with at least one notch for the outward movement of the sliding part of the connecting rod, the notch is provided with an outer edge for limiting the sliding part to be separated from the slide way, the first end of the connecting rod is positioned in the notch and is in a state of being abutted against the outer edge of the notch, and the auxiliary spray arm is arranged along the length direction of the main spray arm.

The slide way has various structures, but preferably includes an arc-shaped groove extending along the circumferential direction of the mounting base and an inclined groove gradually inclining outward along the moving direction of the sliding part, the inclined groove is located between the arc-shaped groove and the notch, and the auxiliary spray arm is perpendicular to the main spray arm in a state that the first end of the connecting rod is located in the arc-shaped groove.

For the follow-up four corners of square washing chamber wash, reduce and wash the dead angle, preferably, breach, arc wall and inclined slot have four groups, and along the circumference interval arrangement of slide. In addition, two sets of patterns may be used.

The auxiliary spray arm may be in the form of one or more than two, but from the viewpoint of increasing the spray area and reducing the cost, it is preferable that the auxiliary spray arm has two auxiliary spray arms and is rotatably disposed at two ends of the main spray arm in the length direction, and each auxiliary spray arm corresponds to one of the linkage assemblies.

In order to realize the resetting of the auxiliary spray arm, the automatic spraying device also comprises an elastic piece which acts on the auxiliary spray arm and enables the auxiliary spray arm to always have the arrangement trend along the length direction of the main spray arm.

The elastic piece has various structural forms, and can be in the form of a spring or an elastic sheet, but preferably, the elastic piece is an elastic sheet, a first end of the elastic sheet is connected with the main spray arm, and the auxiliary spray arm is provided with a sliding piece which is connected with a second end of the elastic sheet and moves back and forth along the length direction of the main spray arm.

The utility model provides a technical scheme that above-mentioned second technical problem adopted does: the cleaning machine with the spray arm is characterized in that: including wasing the case, it has the washing cavity to wash the case, the mount pad is located the position of the neighbouring bottom of washing cavity, main spray arm is rotationally located the top of mount pad, the inhalant canal that is linked together with the sprue is seted up to the position of the neighbouring central authorities in main spray arm bottom, all seted up on the top surface of main spray arm and vice spray arm spray the hole.

The utility model provides a technical scheme that above-mentioned third technical problem adopted does: the cross section of the washing chamber is square, and the auxiliary spray arms are arranged along the length direction of the main spray arms when the main spray arms rotate to be arranged along the diagonal direction of the washing chamber.

Compared with the prior art, the utility model has the advantages of: in the rotating process of the main spray arm, the auxiliary spray arm rotates relative to the main spray arm through the linkage assembly, and the auxiliary spray arm and the main spray arm form a larger spray area; the spray arm is applied to the cleaning machine, and when the main spray arm is arranged along the diagonal line, the auxiliary spray arm cleans the corners of the cleaning machine, so that the cleaning dead angle is avoided.

Drawings

FIG. 1 is a schematic view of a vertical structure of a main spray arm and an auxiliary spray arm of the cleaning machine in this embodiment;

FIG. 2 is a cross-sectional view of the spray arm of FIG. 1;

FIG. 3 is a cross-sectional view of another angle of the spray arm of FIG. 1;

FIG. 4 is a schematic view of the mounting seat;

FIG. 5 is a partial schematic structural view of the secondary spray arm of FIG. 1 arranged along the length direction of the primary spray arm;

fig. 6 is a cross-sectional view of fig. 5.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 and 5, the cleaning machine of the present embodiment includes a cleaning tank 4 and a spray arm, the cleaning tank 4 has a washing chamber 40 therein, and the cross section of the washing chamber 40 is square. The spray arm comprises a mounting base 5, a main spray arm 1, an auxiliary spray arm 2, a linkage assembly, an elastic piece and a water pumping mechanism 7.

As shown in fig. 1 to 6, the mounting base 5 is relatively fixed to a position near the bottom of the washing chamber 40, the main shower arm 1 is rotatably disposed on the top of the mounting base 5, and the mounting base 5 has a flow guide channel 50. The main spray arm 1 is internally provided with a main runner 10 and a water inlet channel for water to enter; specifically, the number of the main channels 10 in the present embodiment is two, and the main channels are arranged at intervals along the length direction of the main spray arm 1, a water collecting cavity 10a is provided between the two main channels 10, the water collecting cavity 10a is communicated with the main channels 10, a water inlet channel is provided at a position near the center of the bottom of the main spray arm 1, and the water inlet channel is arranged corresponding to the water collecting cavity 10a and is communicated with the flow guide channel 50.

As shown in fig. 3, the water pumping mechanism 7 pumps the water at the bottom of the washing chamber 40 to the water collecting chamber 10a of the main shower arm 1 through the guide passage 50. The water pumping mechanism 7 in this embodiment includes a motor 71 and an impeller assembly 72, the upper portion of the impeller assembly 72 is a centrifugal impeller located in the water collecting cavity 10a of the spray arm, the lower portion of the impeller assembly 72 is an axial-flow impeller located below the water inlet channel, the motor 71 is located below the impeller assembly 72, and the output shaft of the motor is connected with the impeller assembly 72.

As shown in fig. 1 to 3, 5 and 6, the main spray arm 1 is in a straight shape as a whole, two sub spray arms 2 are provided and rotatably provided at both ends of the main spray arm 1 in the longitudinal direction, the two sub spray arms 2 have the same structure and installation manner, and one of the sub spray arms 2 will be described as an example. The extension direction of the rotation axis of the auxiliary spray arm 2 is the same as the extension direction of the rotation axis of the main spray arm 1, and both extend along the vertical direction. The inside of the auxiliary spray arm 2 is provided with a sub-channel 20 communicated with the main channel 10 on the corresponding side, and the top wall of each auxiliary spray arm 2 and the top wall of the main spray arm 1 are provided with spray holes 01 for spraying water. The water pumping mechanism 7 pumps water into the water collecting cavity 10a, a part of the water is upwards sprayed out through the spraying holes 01 of the main spraying arm, a part of the water flows into the auxiliary flow channel 20 through the main flow channel 10 and is upwards sprayed out through the spraying holes 01 of the auxiliary spraying arm, a driving hole (not shown) is formed in the bottom wall of the main spraying arm 1, and when the water is sprayed out through the driving hole, the main spraying arm is driven to rotate by the reaction of the water.

Each secondary spray arm 2 is provided with a set of linkage components and an elastic member, and the following description will take one of the secondary spray arms 2 and the corresponding linkage components and elastic member as an example. As shown in fig. 2, the power input end of the linkage assembly is arranged to rotate around the mounting seat 5, and the power output end of the linkage assembly is in transmission connection with the auxiliary spray arm 2 to drive the auxiliary spray arm 2 to rotate relative to the main spray arm 1. Specifically, the linkage assembly includes a connecting rod 3 extending along the length direction of the main spray arm 1, the connecting rod 3 is slidably disposed on the bottom surface of the main spray arm 1 along the length direction of the main spray arm 1, specifically, the bottom surface of the main spray arm 1 has an extending portion 11 extending toward the mounting seat 5, the connecting rod 3 is provided with a sliding slot 32 extending along the length direction thereof and corresponding to the extending portion 11, and the extending portion 11 is located in the sliding slot 32 and is in sliding fit with the sliding slot 32. The mounting seat 5 is provided with a slide way 51 extending along the circumferential direction of the mounting seat, the slide way 51 comprises an arc-shaped groove 512, an inclined groove 513 and a notch 511 for the sliding part 30 of the connecting rod 3 to move outwards, the notch 511 is provided with an outer edge 514 for limiting the sliding part 30 to be separated from the slide way, and the auxiliary spray arm 2 is arranged along the length direction of the main spray arm 1 under the state that the first end of the connecting rod 3 is positioned in the notch 511 and is abutted against the outer edge 514 of the notch 511. The arc-shaped groove 512 extends along the circumferential direction of the mount 5, and the inclined groove 513 is gradually inclined outward along the moving direction of the slide 30 and is located between the arc-shaped groove 512 and the notch 511. The notches 511, the arc-shaped grooves 512 and the inclined grooves 513 of the present embodiment are provided in four sets and are arranged at intervals along the circumferential direction of the slide 51.

The first end of the connecting rod 3 has a sliding portion 30 slidably disposed in the slideway 51, and the second end of the connecting rod 3 has an extension rod 31 intersecting with the connecting rod 3, in this embodiment, the extension rod 31 is perpendicular to the connecting rod 3, the extension rod 31 is provided with a guide groove 311 extending along the length direction thereof, and the secondary spray arm 2 has a protrusion 21 slidably engaged with the guide groove 311. When the main spray arm 1 rotates relative to the mounting seat 5 to be arranged along the diagonal direction of the washing chamber 40, the sliding part 30 at the first end of the connecting rod 3 is positioned in the notch 511, and the auxiliary spray arm 2 is arranged along the length direction of the main spray arm 1; and under the state that the main spray arm 1 rotates relative to the mounting base 5 until the sliding part 30 at the first end of the connecting rod 3 is positioned in the arc-shaped groove 512, the auxiliary spray arm 2 is vertical to the main spray arm 1.

The elastic member acts on the sub spray arm 2 and causes the sub spray arm 2 to always have a tendency to be arranged along the length direction of the main spray arm 1 of 1. Specifically, as shown in fig. 2, the elastic element is an elastic sheet 6, a first end of the elastic sheet 6 is connected to the main spray arm 1, a sliding element 22 connected to a second end of the elastic sheet 6 is disposed on the sub-spray arm 2, and the sliding element 22 of the present embodiment is a sliding sheet. In this embodiment, the main spray arm 1 is provided with a guide hole 13 for the sliding member 22 to pass through, the guide hole 13 extends along the length direction of the main spray arm 1, the outer side of the sliding member 22 is connected with the auxiliary spray arm 2, and the inner side of the sliding member 22 is connected with the inner end of the elastic sheet 6. The aforementioned slide 22 moves back and forth along the extending direction of the guide hole 13.

The working process of the spray arm is as follows:

when the connecting rod 3 circles on the slideway 51, when the sliding part 30 of the connecting rod 3 moves to the inclined groove through the arc-shaped groove, at this time, the sliding part 30 of the connecting rod 3 slowly moves outwards, at this time, the connecting rod 3 moves outwards along the length direction of the main spray arm 1, when the connecting rod 3 slides to abut against the outer edge 514 of the notch 511, the connecting rod 3 completely moves outwards to a certain position, at this time, the main spray arm 1 rotates to a corner position (namely, the main spray arm 1 is arranged along the diagonal line), the auxiliary spray arm 2 is completely unfolded (the auxiliary spray arm 2 is arranged along the length direction of the main spray arm 1) and is in a straight line with the main spray arm 1, and at this time, the diagonal line is cleaned; when the main spray arm 1 continues to rotate, the sliding part 30 of the connecting rod 3 moves inwards along the length direction of the main spray arm 1, and then the auxiliary spray arm 2 is pulled to rotate towards the mounting seat 5, at the moment, the sliding part 22 slides inwards, the elastic sheet 6 is stretched to generate elastic force, and the sliding part 22 can slide along the guide hole 13 of the main spray arm 1. When the sliding part 30 of the connecting rod 3 is positioned in the arc-shaped groove 512, the connecting rod 3 moves inwards to a proper position, at the moment, the auxiliary spray arm 2 rotates to be perpendicular to the main spray arm 1, at the moment, the elastic sheet 6 is stretched to the maximum deformation amount, and the auxiliary spray arm 2 is pushed to be reset to be arranged along the length direction of the main spray arm 1. Along with the continuous rotation of the spray arms, the auxiliary spray arms 2 can be unfolded at the corner positions, and the corner positions are contracted into a state of being right-angled with the main spray arms 1.

Directional terms such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the 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 may be arranged in different orientations, these directional terms are for illustrative purposes only and should not be construed as limiting, and for example, "upper" and "lower" are not necessarily limited to orientations opposite or consistent with the direction of gravity.

Claims

1. A spray arm for a washing machine comprises a mounting base (5) for fixing the spray arm relative to the washing machine;

the main spray arm (1) is rotatably arranged on the mounting seat (5) and is internally provided with a main flow channel (10);

the auxiliary spray arm (2) is rotatably arranged at the position close to the end part of the main spray arm (1), a sub-runner (20) communicated with the main runner (10) is arranged in the auxiliary spray arm, and a spray hole for spraying water flow is formed in the top wall and/or the side wall of the auxiliary spray arm (2);

it is characterized by also comprising:

the power input end of the linkage component is arranged to rotate around the mounting seat (5), and the power output end of the linkage component is in transmission connection with the auxiliary spray arm (2) and used for driving the auxiliary spray arm (2) to rotate relative to the main spray arm (1).

2. The spray arm of claim 1, wherein: linkage assembly is including along connecting rod (3) that the length direction of main spray arm (1) extends, connecting rod (3) are along the length direction of main spray arm (1) is located with sliding main spray arm (1) orientation the first face of mount pad (5), slide (51) along its circumference extension are seted up to mount pad (5), the first end of connecting rod (3) has can slide and locate sliding part (30) in slide (51), and the second end of this connecting rod (3) is equipped with extension rod (31) of arranging with this connecting rod (3) looks intersection, guide way (311) that extend along self length direction are seted up in extension rod (31), the extending direction of the rotation axis of vice spray arm (2) with the extending direction of the rotation axis of main spray arm (1) is unanimous, and have with guide way (311) sliding fit's convex part (21).

3. The spray arm of claim 2, wherein: the first surface of the main spray arm (1) is provided with an extension part (11) extending towards the direction of the mounting seat (5), the connecting rod (3) is provided with a sliding groove (32) extending along the length direction of the connecting rod and corresponding to the extension part (11), and the extension part (11) is positioned in the sliding groove (32) and is in sliding fit with the sliding groove (32).

4. The spray arm of claim 2, wherein: the slide way (51) is provided with at least one notch (511) for the sliding part (30) of the connecting rod (3) to move outwards, the notch (511) is provided with an outer edge (514) for limiting the sliding part (30) to be separated from the slide way (51), the first end of the connecting rod (3) is positioned in the notch (511) and is in a state of being abutted against the outer edge (514) of the notch (511), and the auxiliary spray arm (2) is arranged along the length direction of the main spray arm (1).

5. The spray arm of claim 4, wherein: the slide way (51) comprises an arc-shaped groove (512) extending along the circumferential direction of the mounting seat (5) and an inclined groove (513) inclining outwards gradually along the movement direction of the sliding part (30), the inclined groove (513) is positioned between the arc-shaped groove (512) and the notch (511), and the auxiliary spray arm (2) is perpendicular to the main spray arm (1) in the state that the first end of the connecting rod (3) is positioned in the arc-shaped groove (512).

6. The spray arm of claim 5, wherein: the notches (511), the arc-shaped grooves (512) and the inclined grooves (513) are four groups and are arranged at intervals along the circumferential direction of the slide way (51).

7. The spray arm of claim 1, wherein: the number of the auxiliary spray arms (2) is two, the auxiliary spray arms are respectively and rotatably arranged at two ends of the main spray arm (1) in the length direction, and each auxiliary spray arm (2) corresponds to one linkage assembly.

8. The spray arm according to any one of claims 1 to 7, wherein: the spraying device also comprises an elastic piece which acts on the auxiliary spraying arm (2) and enables the auxiliary spraying arm (2) to always have the arrangement trend along the length direction of the main spraying arm (1).

9. The spray arm of claim 8, wherein: the elastic piece is an elastic piece (6), the first end of the elastic piece (6) is connected with the main spray arm (1), and the auxiliary spray arm (2) is provided with a sliding piece (22) which is connected with the second end of the elastic piece (6) and moves back and forth along the length direction of the main spray arm (1).

10. A cleaning machine having a spray arm as claimed in any one of claims 1 to 9, characterized in that: including wasing case (4), washing case (4) have washing chamber (40), mount pad (5) are located the position of washing chamber (40) neighbouring bottom, main spray arm (1) is rotationally located the top of mount pad (5), the water inlet channel who is linked together with sprue (10) is seted up to the position of main spray arm (1) neighbouring central authorities in bottom, all seted up on the top surface of main spray arm (1) and vice spray arm (2) spray hole (01).

11. The washing machine as claimed in claim 10, wherein: the cross section of the washing chamber (40) is square, and the auxiliary spray arm (2) is arranged along the length direction of the main spray arm (1) when the main spray arm (1) rotates to be arranged along the diagonal direction of the washing chamber (40).