CN212972883U - A spray arm and cleaning machine for cleaning machine - Google Patents

Abstract

The utility model relates to a spray arm for a cleaning machine and the cleaning machine, wherein, the spray arm for the cleaning machine comprises a mounting seat which is used for being fixed relatively with the cleaning machine; the main spraying arm is rotatably arranged on the mounting seat, a main flow channel is formed in the main spraying arm, and the main spraying arm is provided with a water inlet channel for supplying water into the main flow channel; the auxiliary spray arm is rotatably arranged at a position close to the end part of the main spray arm, a sub-flow passage communicated with the main flow passage is arranged in the auxiliary spray arm, and at least one of the auxiliary spray arm and the main spray arm is provided with a spray hole for spraying water flow; and the elastic piece acts on the auxiliary spray arm and has a tendency of enabling the auxiliary spray arm to rotate relative to the main spray arm in an energy storage state. The auxiliary spray arm can rotate reliably and expand outwards, and the cleaning area is increased.

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

With the increasing living standard of people, the dish washing machine is used as a kitchen household appliance and is more and more introduced into families. The dish-washing machines on the market at present are generally divided into a table type dish-washing machine, a cabinet type dish-washing machine and a trough type dish-washing machine, wherein the table type dish-washing machine is an integral independent structure and is generally placed on a table top for use; the cabinet type dish washing machine is also an independent structure, but needs to be embedded into a kitchen cabinet for use; the sink dishwasher is combined with a sink and is generally installed in a kitchen cabinet for use.

The above-mentioned various types of dish washers generally achieve a washing action by a water pump lifting up water and spraying it toward dishes in a washing space. Chinese utility model patent "a spray arm and applied and cleaning machine with this spray arm" as applicant's prior application, its patent number is ZL201721042136.4, and the publication number of authorizing is CN208243536U, discloses a spray arm including the spray arm body, thereby this spray arm body inside cavity forms the chamber that catchments, set up the apopore that is linked together with the chamber that catchments on the upper surface of spray arm body, still be provided with the gas filling mouth on the upper surface of spray arm body, this gas filling mouth with the chamber that catchments is linked together. Spray arm is length fixed in this patent, and not telescopic, just carries out the circumference rotation around the centre of a circle, and the swept area of spray arm spun water is also circular, because the dish washer inner chamber is the cube, so the dirty condition of washing can appear in four angles of basin bottom, washs promptly and has the dead angle to exist.

The Chinese utility model patent of the applicant, which was previously applied, discloses a spray arm and a cleaning machine applying the spray arm, the patent number of which is ZL 201721289180.5 and the publication number of which is CN208610787U, and the spray arm comprises a main spray arm, wherein the main spray arm is hollow and is provided with at least two diversion channels, and the end surface of the main spray arm is provided with at least two water outlet holes respectively communicated with the corresponding diversion 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. According to the patent, at least two auxiliary spray arms are arranged on the main spray arm, so that the spray area can be effectively enlarged, the cleaning rate is improved, the auxiliary spray arms rotate completely under the action of water flow sprayed by the water spray holes, when the auxiliary spray arms do not move to a dead angle, the auxiliary spray arms and the main spray arm form the maximum spray area, when the auxiliary spray arms move to the dead angle, the auxiliary spray arms rotate to deviate from the length direction of the main spray arm, the spray area is reduced on the contrary, the dead angle cannot be effectively sprayed, and the reliability is poor.

Accordingly, further improvements to existing spray arms are needed.

SUMMERY OF THE UTILITY MODEL

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

The utility model aims to solve the second technical problem that, a make the corner of box obtain abundant abluent cleaning machine is provided.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: a spray arm for a cleaning machine includes a mount for relative securement with the cleaning machine;

the main spraying arm is rotatably arranged on the mounting seat, a main flow channel is formed in the main spraying arm, and the main spraying arm is provided with a water inlet channel for supplying water into the main flow channel;

the auxiliary spray arm is rotatably arranged at a position close to the end part of the main spray arm, a sub-flow passage communicated with the main flow passage is arranged in the auxiliary spray arm, and at least one of the auxiliary spray arm and the main spray arm is provided with a spray hole for spraying water flow;

the method is characterized in that: also comprises

And the elastic piece acts on the auxiliary spray arm and has a tendency of enabling the auxiliary spray arm to rotate relative to the main spray arm in an energy storage state.

Realize vice spray arm and main spray arm and rotate the mode of being connected and have a variety, can adopt main spray arm and vice spray arm to pass through pivot and mounting hole normal running fit's form, promptly: the main spray arm is provided with a rotating shaft extending upwards, the auxiliary spray arm is provided with a mounting hole which is matched with the rotating shaft in a rotating way, other forms can also be adopted, but preferably, the auxiliary spray arm is provided with a rotating shaft extending downwards at a position adjacent to the inner end of the auxiliary spray arm, and correspondingly, the main spray arm is provided with a mounting hole which is used for the rotating shaft to be inserted into the main spray arm from top to bottom and is matched with the rotating shaft in a rotating way.

The structural style of elastic component has a plurality ofly, but preferably, the elastic component is established for the cover the epaxial torsional spring of commentaries on classics, the first end of torsional spring with main spray arm links to each other, the second end of torsional spring with the pivot links to each other.

The main runner and the sub-runners are in fluid communication in various ways, and water can enter through the gap between the mounting hole and the rotating shaft and then enter through the hole formed in the auxiliary spray arm, but preferably, a water flow channel for communicating the main runner and the sub-runners is formed in the rotating shaft.

In order to guide the movement of the auxiliary spray arm on the inner wall surface of the follow-up cleaning machine conveniently, the bottom of the outer end of the auxiliary spray arm is provided with a roller capable of rotating around the axis of the roller, the rotating axis of the roller is basically parallel to the axis of the rotating shaft, and the roller is partially positioned outside the outer end part of the auxiliary spray arm.

Preferably, the water flow passage is provided in a position near the center of the main spray arm and faces the mount.

In order to increase the spraying area, the main spraying arm and the auxiliary spraying arm are provided with the spraying holes.

In order to increase the spraying area, the number of the auxiliary spraying arms is two, the auxiliary spraying arms are respectively and rotatably arranged at two ends of the main spraying arm in the length direction, and each auxiliary spraying arm is correspondingly provided with one elastic piece. Thus, the coverage rate of spraying is improved.

The utility model provides a technical scheme that above-mentioned second technical problem adopted does: the cleaning machine with the spray arm comprises a box body, wherein the box body is provided with a washing cavity with a hollow inner part, a mounting seat is arranged at the position, close to the bottom, of the washing cavity, a main spray arm is horizontally and rotatably arranged on the mounting seat, the outermost end of the spray arm is always abutted against the corresponding position of the inner wall surface of the box body under the action of an elastic piece, and a spray hole is formed in the upper wall surface of the spray arm.

The washing machine is generally a sink dish washer, and the horizontal cross section of the box body is approximately rectangular; the area swept by the water sprayed by the spray arm is also rectangular.

Compared with the prior art, in the spray arm for the cleaning machine, when external force or air flow opposite to the rotation direction of the main spray arm acts on the auxiliary spray arm, the auxiliary spray arm rotates relative to the main spray arm under the action of the elastic piece, so that the auxiliary spray arm can reliably rotate and expand outwards, and the cleaning area is increased; when this spray arm was used in the cleaning machine, the elastic component made vice spray arm's outermost end hug closely all the time on the internal face in cleaning machine washing chamber for vice spray arm's steady rotation, so, whole spray arm has improved the coverage that sprays along the internal face motion in washing chamber, makes the corner in washing chamber obtain comprehensive washing.

Drawings

Fig. 1 is a schematic structural view of a spray arm according to an embodiment of the present invention;

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

FIG. 3 is a schematic structural view of the auxiliary spray arm of FIG. 1 rotated at a certain angle relative to the main spray arm;

FIG. 4 is a schematic perspective exploded view of FIG. 3;

FIG. 5 is a cross-sectional view of FIG. 3;

FIG. 6 is a schematic structural view of the cleaning machine of the present embodiment;

FIG. 7 is a schematic view of the spray arm of FIG. 6 rotated to a position along a diagonal of the housing;

FIG. 8 is a cross-sectional view of FIG. 7;

fig. 9 is an enlarged schematic view of a portion B in fig. 8.

Detailed Description

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

As shown in fig. 6 to 9, the washing machine of the present embodiment includes a cabinet 4, the horizontal cross section of the cabinet 4 is substantially rectangular, and the cabinet 4 has a washing chamber 41 with a hollow interior.

The bottom of box is provided with the power component (not shown) that can go into the water in the main flow path through the inlet channel high-speed pump, and power component usually includes water pump and water conservancy diversion support, and power component in this embodiment adopts the power component in the chinese utility model patent "a spray arm and the cleaning machine that uses this spray arm" that applicant applied for earlier (application number is CN201721289180.5, and the grant bulletin number is CN208610787U), will not be repeated in detail in this embodiment again.

As shown in fig. 1 to 9, the spray arm for a washing machine includes a mounting seat a, a main spray arm 1, an auxiliary spray arm 2, and an elastic member, the mounting seat a is disposed at a position adjacent to the bottom of the washing chamber 41, and the bottom of the main spray arm 1 is horizontally and rotatably disposed on the mounting seat a.

As shown in fig. 2 and 5, a main flow passage 11 is formed inside the main spray arm 1, the main spray arm 1 has a water inlet channel 12 for supplying water into the main flow passage 11 at a position near the center of the bottom of the wall facing the mounting seat a, spray holes for spraying water are opened on the upper wall of the main spray arm 1, the spray holes of the main spray arm 1 are first spray holes 14, and the first spray holes 14 are plural and arranged at intervals along the length direction of the main spray arm 1.

As shown in fig. 1 to 5, two auxiliary spray arms 2 are oppositely arranged and respectively rotatably arranged at two ends of the main spray arm 1, and each auxiliary spray arm 2 can rotate together with the main spray arm 1; the two auxiliary spray arms 2 are connected with the main spray arm 1 in the same rotating manner, wherein one auxiliary spray arm is taken as an example, specifically, the auxiliary spray arm 2 is provided with a rotating shaft 22 extending downwards at a position adjacent to the inner end of the auxiliary spray arm, correspondingly, the main spray arm 1 is provided with a mounting hole 13 into which the rotating shaft 22 is inserted from top to bottom and is rotatably matched with the rotating shaft 22, and the auxiliary spray arm 2 is rotatably connected with the main spray arm 1 through the rotating matching of the rotating shaft 22 and the mounting hole 13.

As shown in fig. 1 to 9, the secondary spray arm 2 has a branch channel 21 therein, the rotation shaft 22 has a water flow channel 221 communicating with the branch channel 21, and the inner peripheral wall of the mounting hole 13 is opened with a notch 131 in fluid communication with the main channel 11 and the water flow channel 221, so that the main channel 11 of the main spray arm 1 is in fluid communication with the branch channel 21 of the secondary spray arm 2. In addition, the upper wall surface of the auxiliary spray arm 2 is provided with spray holes for spraying water, the spray holes of the auxiliary spray arm 2 are second spray holes 24, and the second spray holes 24 are arranged at intervals along the length direction of the auxiliary spray arm 2.

As shown in fig. 1 to 9, the bottom of the outer end of the secondary spray arm 2 is provided with a roller 23 capable of rotating around its axis, the roller 23 is a rubber roller, the rotation axis of the roller 23 is substantially parallel to the axis of the rotating shaft 22, and the roller 23 is partially located outside the outer end of the secondary spray arm 2, as shown in fig. 5.

As shown in fig. 2, 4 and 5, each secondary spray arm 2 corresponds to one elastic member, and the two elastic members are arranged in the same manner, wherein one elastic member is taken as an example: the elastic component is the torsional spring 3 that the cover was established on pivot 22, and the first end 31 of torsional spring 3 links to each other with main shower arm 1, and the second end 32 of torsional spring 3 links to each other with pivot 22. In this way, the torsion spring 3 acts on the auxiliary spray arm 2, the auxiliary spray arm 2 keeps a trend of rotating relative to the main spray arm 1 in an energy storage state, and the rotating direction of the auxiliary spray arm 2 relative to the rotating trend of the main spray arm 1 is consistent with the rotating direction of the main spray arm 1, so that the roller 23 on the auxiliary spray arm 2 is always attached to the corresponding position of the inner wall surface of the box body 4, and the outer peripheral wall of the roller 23 at the outermost end of the spray arm is always abutted against the inner wall surface of the box body 4.

The spray arm for a cleaning machine works as follows:

the main spray arm 1 rotates horizontally under the impact of high-speed rivers in the water inlet channel 12, the auxiliary spray arm 2 rotates along with the main spray arm 1, when the auxiliary spray arm 2 rotates, when the gyro wheel 23 of the outermost end of the auxiliary spray arm 2 contacts with the corresponding position of the inner wall surface of the box 4, the torsion spring 3 always enables the peripheral wall of the gyro wheel 23 of the outermost end of the auxiliary spray arm 2 to cling to the inner wall surface of the box 4, therefore, the peripheral wall of the gyro wheel 23 of the outermost end of the auxiliary spray arm 2 always clings to the inner wall surface of a dishwasher, a spray hole on the auxiliary spray arm 2 forms a rectangular track which is the same as the cross section of the box 4, all positions in the box are comprehensively cleaned, and spray dead angles are avoided.

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), i.e., a fluid (gas, liquid or a mixture of both) can flow along a flow path from the first portion or/and be transported to the second portion, and may be directly communicated between the first portion and the second portion, or indirectly communicated between the first portion and the second portion via at least one third member, which may be a fluid passage such as a pipe, a channel, a duct, a flow guide, a hole, a groove, or a chamber allowing the fluid to flow therethrough, or a combination thereof.

Claims (10)

1. A spray arm for a washing machine comprises a mounting (A) for relative fixation with the washing machine;

the main spray arm (1) is rotatably arranged on the mounting seat (A), a main flow channel (11) is formed in the main spray arm, and the main spray arm is provided with a water inlet channel (12) for supplying water into the main flow channel (11);

the auxiliary spray arm (2) is rotatably arranged at a position close to the end part of the main spray arm (1), a branch flow passage (21) which is in fluid communication with the main flow passage (11) is arranged in the auxiliary spray arm, and at least one of the auxiliary spray arm (2) and the main spray arm (1) is provided with a spray hole for spraying water flow;

the method is characterized in that: also comprises

The elastic piece acts on the auxiliary spray arm (2) and has the tendency that the auxiliary spray arm (2) rotates relative to the main spray arm (1) in an energy storage state.

2. The spray arm of claim 1, wherein: the auxiliary spray arm (2) is provided with a rotating shaft (22) extending downwards at a position adjacent to the inner end of the auxiliary spray arm, and correspondingly, the main spray arm (1) is provided with a mounting hole (13) into which the rotating shaft (22) is inserted from top to bottom and is in rotating fit with the rotating shaft (22).

3. The spray arm of claim 2, wherein: the elastic component is established for the cover torsional spring (3) on pivot (22), the first end (31) of torsional spring (3) with main spray arm (1) links to each other, the second end (32) of torsional spring (3) with pivot (22) link to each other.

4. The spray arm of claim 2, wherein: and a water flow channel (221) communicated with the main flow channel (11) and the sub flow channel (21) is arranged on the rotating shaft (22).

5. The spray arm of claim 2, wherein: the bottom of the outer end of the auxiliary spray arm (2) is provided with a roller (23) capable of rotating around the axis of the roller, the rotating axis of the roller (23) is basically parallel to the axis of the rotating shaft (22), and the part of the roller (23) is positioned outside the outer end of the auxiliary spray arm (2).

6. The spray arm of claim 4, wherein: the water flow channel (221) is arranged on the main spray arm (1) near the center and faces the mounting seat (A).

7. The spray arm according to any one of claims 1 to 6, wherein: the main spray arm (1) and the auxiliary spray arm (2) are provided with the spray holes.

8. The spray arm of claim 7, wherein: the auxiliary spraying arms (2) are provided with two parts which are respectively rotatably arranged at two ends of the main spraying arm (1) in the length direction, and each auxiliary spraying arm (2) is correspondingly provided with one elastic part.

9. A cleaning machine with the spray arm of any one of claims 1 to 8, comprising a box body (4), wherein the box body (4) is provided with a washing cavity (41) with a hollow interior, the mounting seat (A) is arranged at a position of the washing cavity (41) adjacent to the bottom, the main spray arm (1) is horizontally and rotatably arranged on the mounting seat (A), the outermost end of the spray arm is always abutted against the corresponding position of the inner wall surface of the box body (4) under the action of the elastic piece, and the spray hole is formed in the upper wall surface of the spray arm.

10. The cleaning machine of claim 9, wherein: the horizontal cross section of the box body (4) is approximately rectangular.

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