CN218220146U - A spray structure and cleaning machine for cleaning machine - Google Patents

Abstract

The utility model relates to a spraying structure for a cleaning machine and the cleaning machine, the spraying structure comprises a spraying arm, a flow channel is arranged in the spraying arm, and the spraying arm is provided with a water inlet, a spray hole and a mounting hole which are all in fluid communication with the flow channel; the spray head comprises an insertion part which is tubular, one end of the insertion part extends into a flow channel of the spray arm from the mounting hole, and the insertion part can rotate around the axis of the insertion part; the water collecting part is hollow and is in fluid communication with the other end of the inserting part, and a nozzle in fluid communication with the inside of the water collecting part is arranged on the water collecting part; the positioning piece is arranged on the inserting part or the spraying arm, and the inserting part is prevented from moving towards the direction far away from the flow channel, so that the spray head is positioned on the spraying arm.

Description

A spray structure and cleaning machine for cleaning machine

Technical Field

The utility model relates to a cleaning machine technical field, concretely relates to a spray structure and cleaning machine for cleaning machine.

Background

The spray arm of a dishwasher is the most critical component to achieve the washing performance of the dishwasher. At present, a household dish washing machine drives a spray arm by water pressure, and the spray arm rotates to spray water for washing, but because of the shielding of tableware and the limitation of the structure of the spray arm, spray dead angles easily exist.

To above-mentioned problem, chinese utility model patent that patent number is CN201520047405.0 (publication number is CN 204445748U) discloses "a dish washer spray thrower and dish washer", wherein the spray thrower includes water storage cavity, spray face and installation face, be provided with a plurality of spray holes that communicate with water storage cavity on the spray face, be equipped with the water inlet on the installation face, install the shower nozzle on the spray face, be equipped with two at least shower nozzles on the shower nozzle and spray the hole, the inside water course that communicates with water storage cavity that has of shower nozzle, the shower nozzle sprays hole and water course intercommunication. When the sprayer (namely the spray arm) rotates to spray, the spray head on the sprayer also sprays simultaneously, and the spray head is provided with at least two spray head spray holes, so that the effective spray area is increased, the spray dead angle is reduced, and the washing effect is improved.

However, this patent only discloses that the spray head is rotatably mounted on the spray face, but does not disclose how the spray head is positioned on and rotatable relative to the spray face.

In addition, the inner space of the inner container of a washing machine such as a dish washing machine is usually cubic, and because of the length limitation of the spray arm and the blocking of tableware, the corner area of the inner container is difficult to clean and can only be indirectly cleaned by water drops dropping from the door body, and the secondary pollution is serious, so that the secondary pollution at the corner area is serious; in addition, because the space in the inner container is small, the corner area of the inner container is shielded by tableware, water columns generated by the conventional spray arm cannot reach a high height for cleaning, and secondary pollution at the corner area can be serious.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem to provide a shower nozzle is convenient for rotate the structure that sprays that is used for the cleaning machine who installs on the spray arm to the current situation of prior art.

The utility model discloses the second technical problem that will solve is to prior art's current situation, provides a wide application of spraying range above-mentioned cleaning machine who sprays the structure.

The utility model discloses the third technical problem that will solve is to prior art's current situation, provides a spray arm can carry out abluent cleaning machine to the corner department of box.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: a spray structure for a cleaning machine, comprising

The spraying arm is internally provided with a flow channel, and the spraying arm is provided with a water inlet, a spray hole and a mounting hole which are all in fluid communication with the flow channel;

spray head, comprising

The inserting part is tubular, one end of the inserting part extends into a flow channel of the spray arm from the mounting hole, and the inserting part can rotate around the axis of the inserting part;

the water collecting part is hollow and is in fluid communication with the other end of the inserting part, and a nozzle in fluid communication with the inside of the water collecting part is arranged on the water collecting part;

the method is characterized in that: also comprises

The positioning piece is arranged on the inserting part, and abuts against the spraying arm to prevent the inserting part from moving towards the direction far away from the flow channel under the condition that the inserting part extends into the flow channel of the spraying arm from the mounting hole;

or, the locating piece is arranged on the spray arm, and the locating piece abuts against the insertion part to prevent the insertion part from moving towards the direction far away from the flow channel in the state that the insertion part extends into the flow channel of the spray arm from the mounting hole.

The locating piece can have multiple structural style, for example for setting up the convex part that has elasticity on the internal face of spray arm, under the state of cartridge portion cartridge in the mounting hole, the convex part tightly supports the periphery wall of cartridge portion to spacing the axial of cartridge portion, but set up the locating piece on the internal face of spray arm comparatively inconveniently, for setting up the locating piece, the free end of cartridge portion (the one end that stretches into the spray arm promptly) has two at least outside lateral protrusions that set up along circumference interval on its periphery wall, and can make cartridge portion insert in the mounting hole through inwards squeezing this outside lateral protrusion, under the cartridge state, outside lateral protrusion left-hand thread covers corresponding spray arm internal face, outside lateral protrusion is promptly the locating piece. The lateral outward convex part which can deform when being extruded inwards and enables the insertion part to be inserted into the mounting hole of the spray arm is arranged on the insertion part, so that when the insertion part is inserted into the spray arm from the mounting hole, the lateral outward convex part deforms to allow the insertion part to be inserted, and in the insertion state of the insertion part, the lateral outward convex part is restored to be in a state of being propped against the inner wall surface of the spray arm, so that the positioning of the spray head on the spray arm is realized, the rotation of the spray head cannot be influenced, and the installation is convenient and fast.

In order to facilitate the insertion of the insertion part in the spray arm and not influence the rotation of the spray head relative to the spray arm, the outer diameter of the insertion part is smaller than the diameter of the mounting hole, and the outer wall surface of the lateral outward convex part is a conical surface gradually reducing in diameter along the insertion direction of the insertion part.

The cartridge portion and the water collection portion can be connected through the connecting piece, simple structure ground, the cartridge portion and the water collection portion integrated into one piece of shower nozzle, the longitudinal section of shower nozzle is the T type, has saved the part of connecting cartridge portion and water collection portion like this, simple structure to cartridge portion and water collection portion integrated into one piece, the preparation of being convenient for also can avoid the hidden danger that the junction of the two leaked.

In order to facilitate the nozzle to be installed on the water collecting part, an installation platform communicated with the interior of the water collecting part is formed on the peripheral wall of the water collecting part, and the water inlet end of the nozzle is installed on the installation platform.

In order to improve the spraying range of the spray head, the number of the nozzles on the water collecting part is at least two, each nozzle is obliquely arranged relative to the water collecting part, and the nozzles are arranged in a clockwise or anticlockwise spiral direction on the whole.

In order to improve the spraying range of the spray head, the inclination angle and the inclination direction of at least two nozzles are different.

Preferably, a wall surface of the water collecting part, which is opposite to the spray arm, is called a third wall surface, an included angle between a center line of the nozzle and a plane where the third wall surface is located is α, and 0< α <90 °; the connecting line between the water inlet ends B of the central nozzles on the third wall surface is marked as AB, the included angle beta between the central line of the nozzles and AB is 0< beta <360 degrees, the included angle theta between the projection of the central line of the nozzles on the third wall surface and AB is 0< theta <360 degrees.

In the above scheme, preferably, the spray head and the spray holes are both arranged on a first wall surface of the spray arm, the water inlet is arranged on a second wall surface opposite to the first wall surface of the spray arm, and the water inlet is arranged near the middle of the spray arm.

The spray arm may be circular but in order to reduce its volume and at the same time enable a large spray range, the spray arm is strip-shaped and in order to enable the spray head to spray towards an area outside the spray arm, the spray head is arranged adjacent to the end of the spray arm.

In order to improve the spraying range of the spraying structure, at least two spray heads are arranged, and the spray heads are arranged at the positions, adjacent to the two end parts, of the spraying arm. Therefore, the plurality of spray heads can spray towards the area outside the spray arm, and the spray range is large.

The utility model provides a technical scheme that above-mentioned second technical problem adopted does: the utility model provides an use cleaning machine of above-mentioned structure that sprays which characterized in that: still including the box that has the inner chamber, the setting that the spray arm can rotate is in the box, still be equipped with the supporter that is used for placing tableware or vegetables and fruits in the box, one side of supporter is located to the spray arm, orifice and nozzle are all towards the position at supporter place.

The utility model provides a technical scheme that above-mentioned third technical problem adopted does: the inner cavity of the box body is cubic, the spray arm is strip-shaped, and the spray head is arranged close to the end part of the spray arm.

Compared with the prior art, the utility model has the advantages that: 1. the utility model rotationally sets the spray head on the spray arm, the spray nozzle on the spray head can spray, the effective spray area is increased, and the spray dead angle is reduced; in addition, the spray head comprises a water collecting part and an inserting part, wherein a positioning piece is arranged on the water collecting part or the inserting part so as to be convenient for rotationally mounting the spray head on the spray arm;

2. when the spraying structure is applied to the cleaning machine, the spraying arm and the spray head spray water together, so that the spraying range is wide; 3. the tip setting of shower nozzle neighbouring spray arm for the rivers that the nozzle jetted out can be located the supporter outside, and the rivers that the nozzle jetted out can not blockked by supporter or tableware like this, and the edgewise carries out the direct washing of a period to the corner of box, and guarantees certain rivers lift.

Drawings

Fig. 1 is a schematic structural view of a spraying structure 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 showerhead of FIG. 1;

FIG. 4 is a schematic view of the structure of FIG. 3 in another direction;

fig. 5 is a schematic structural view of a spraying structure and a shelf.

Detailed Description

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

As shown in fig. 1 to 5, the cleaning machine of the preferred embodiment includes a box body (not shown in the figures), a storage rack 3 and a spraying structure a, wherein the storage rack 3 can be used for placing tableware or vegetables and fruits to be cleaned, and of course, the cleaning machine further includes components such as a water pumping mechanism, which can adopt the existing structure and are not described herein again.

The spraying structure A comprises a spraying arm 1 and a spray head 2, the spraying arm 1 is strip-shaped, a flow channel 11 extending along the length direction of the spraying arm 1 is formed in the spraying arm 1, a water inlet 12, a spray hole 13 and a mounting hole 16 which are communicated with the flow channel 11 in a fluid mode are formed in the spraying arm 1, and the spray holes 13 are multiple and are arranged at intervals along the length direction of the spraying arm 1.

The spray head 2 is rotatably arranged on the spray arm 1, and as shown in fig. 2 and 4, the spray head 2 is rotatably mounted on the spray arm 1 by: the nozzle 2 has a T-shaped longitudinal section and comprises a water collecting part 22 and an inserting part 23 which are integrally connected, the water collecting part 22 is hollow, the water collecting part 22 is provided with a nozzle 21 which is communicated with the inside of the water collecting part, the peripheral wall of the water collecting part 22 is formed with an installation platform 220 communicated with the inside of the water collecting part, and the water inlet end of the nozzle 21 is installed on the installation platform 220.

The inserting portion 23 is tubular and is in fluid communication with the water collecting portion 22, the outer diameter of the inserting portion 23 is smaller than the diameter of the mounting hole 16, one end of the inserting portion 23 extends into the flow channel 11 of the spray arm from the mounting hole 16, the other end of the inserting portion 23 is connected with the water collecting portion 22, and the inserting portion 23 can rotate around the axis of the inserting portion 23.

The insertion portion 23 or the spray arm 1 is provided with a positioning member, and the positioning member abuts against the spray arm 1 or the insertion portion 23 to prevent the insertion portion 23 from moving in a direction away from the flow passage 11 in a state where the insertion portion 23 extends into the flow passage 11 of the spray arm 1 from the mounting hole 16. If the positioning piece is arranged on the inserting part 23, the positioning piece is abutted against the spray arm 1 under the condition that the inserting part 23 extends into the runner 11 of the spray arm 1 from the mounting hole 16; if the positioning element is provided on the spray arm 1, the positioning element abuts against the insertion portion 23 in a state where the insertion portion 23 extends into the flow channel 11 of the spray arm 1 from the mounting hole 16.

In this embodiment, the free end of the insertion portion 23 has at least two lateral outward protrusions 24 arranged at intervals along the circumferential direction on the outer circumferential wall thereof, the lateral outward protrusions 24 are positioning members, the outer wall surface of the lateral outward protrusion 24 is a tapered surface 241 gradually reducing in diameter along the insertion direction of the insertion portion 23, and the insertion portion 23 is inserted into the mounting hole 16 by pressing the lateral outward protrusion 24 inward; specifically, when the lateral outward protrusion 24 passes through the mounting hole 16, it is pressed by the wall surface of the mounting hole 16 and deformed toward the center line of the insertion portion 23, so as to pass through the mounting hole 16 smoothly.

After the lateral outward convex portions 24 pass through the mounting holes 16, the insertion portions 23 are inserted into the mounting holes 16, and the lateral outward convex portions 24 are reversely buckled with the inner wall surfaces of the corresponding spray arms 1 and are axially abutted against the spray arms 1.

In this embodiment, the spray head 2 and the spray holes 13 are both provided on a first wall surface 14 (i.e., an upper end surface in fig. 2) of the spray arm 1, the water inlet 12 is provided on a second wall surface 15 (i.e., a lower end surface in fig. 2) opposite to the first wall surface 14 of the spray arm 1, and the water inlet 12 is provided adjacent to a middle portion of the spray arm 1.

Under the action of the water pumping mechanism, water enters the flow channel 11 of the spray arm 1 and is sprayed out from the spray holes 13, and under the action of water pressure, the spray arm 1 can rotate; the water in the flow passage 11 flows into the interior of the head 2 and flows out from the nozzles 21, and the head 2 is also rotated by the water pressure, as described in the patent publication in the background art.

The inner cavity of box is the cube form, and spray arm 1 can set up in the inner cavity of box with rotating, can set up in the top or the bottom of box, and spray arm 1 locates one side of supporter 3, and orifice 13 and nozzle 21 are all towards the position that supporter 3 belonged to.

In this embodiment, there are two spray heads 2 respectively disposed at two end portions of the spray arm 1, and of course, there may be one or a plurality of spray heads 2, for example, two spray heads 2 are disposed side by side at one end portion of the spray arm 1, so that the spray heads 2 can spray toward an area outside the spray arm 1 to clean corners of the box body.

In order to increase the spraying range of the spray head 2, as shown in fig. 3, the nozzles 21 are designed as follows: at least two nozzles 21 are provided, each nozzle 21 is obliquely arranged relative to the water collecting part 22, the nozzles 21 are arranged in a clockwise or counterclockwise rotation direction on the whole, and the inclination angle and the inclination direction of at least two nozzles 21 are different. In this embodiment, nozzle 21 has four, through the inclination and the incline direction to four nozzles 21 carry out the combination design, and nozzle 21 can avoid the tableware in supporter 3 side, realizes the direct washing to the bight region of box to guarantee certain rivers lift. Meanwhile, the four nozzles 21 can be cleaned to different heights of the corner regions, and the cleanable range is expanded.

As shown in fig. 3 and 4, a wall surface of the water collecting part 22 facing away from the shower arm 1 is referred to as a third wall surface 223, and preferably, an included angle between a center line 21a of the nozzle 21 and a plane of the third wall surface 223 is α,0< α <90 °; a connecting line between the center a of the third wall 223 and the water inlet end B of the nozzle 21 is denoted as AB, an included angle β between the center line 21a of the nozzle 21 and AB is 0< β <360 °, an included angle θ between a projection of the center line 21a of the nozzle 21 on the third wall 223 and AB is 0< θ <360 °, and for convenience of angle labeling in fig. 3, θ is an included angle between a parallel line of a projection of the center line 21a of the nozzle 21 on the third wall 223 and AB.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, since the disclosed embodiments of the invention can be arranged in different orientations, these directional terms are for illustrative purposes only and should not be considered as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter, referred to as a first portion and a second portion) that fluid (gas, liquid or a mixture thereof) can flow along a flow path from the first portion or/and be transported to the second portion, and may be the first portion and the second portion directly connected to each other or indirectly connected to each other through at least one third member, such as a fluid passage, e.g., a pipe, a channel, a duct, a flow guide member, a hole, a groove, or a chamber allowing fluid to flow therethrough, or a combination thereof.

Claims (13)

1. A spray structure for a cleaning machine, comprising

The spray arm (1) is internally provided with a flow channel (11), and the spray arm (1) is provided with a water inlet (12), a spray hole (13) and a mounting hole (16) which are all in fluid communication with the flow channel (11);

spray head (2) comprising

The inserting part (23) is tubular, one end of the inserting part extends into the runner (11) of the spray arm (1) from the mounting hole (16), and the inserting part (23) can rotate around the axis of the inserting part;

the water collecting part (22) is hollow and is in fluid communication with the other end of the inserting part (23), and a nozzle (21) which is in fluid communication with the inside of the water collecting part (22) is arranged on the water collecting part (22);

the method is characterized in that: also comprises

The positioning piece is arranged on the inserting part (23), and the positioning piece is abutted against the spray arm (1) to prevent the inserting part (23) from moving towards the direction far away from the flow channel (11) under the condition that the inserting part (23) extends into the flow channel (11) of the spray arm (1) from the mounting hole (16);

or the positioning piece is arranged on the spray arm (1), and the positioning piece is abutted against the insertion part (23) to prevent the insertion part (23) from moving towards the direction far away from the flow channel (11) under the condition that the insertion part (23) extends into the flow channel (11) of the spray arm (1) from the mounting hole (16).

2. The spray structure of claim 1, wherein: the free end of the insertion part (23) is provided with at least two lateral outward protrusions (24) arranged at intervals along the circumferential direction on the outer circumferential wall of the insertion part, the insertion part (23) can be inserted into the mounting hole (16) by pressing the lateral outward protrusions (24) inwards, the lateral outward protrusions (24) are reversely buckled on the inner wall surface of the corresponding spray arm (1) in the insertion state, and the lateral outward protrusions (24) are the positioning pieces.

3. The spray structure of claim 2, wherein: the outer diameter of the insertion portion (23) is smaller than the diameter of the mounting hole (16), and the outer wall surface of the lateral convex portion (24) is a conical surface (241) which gradually reduces in diameter along the insertion direction of the insertion portion (23).

4. The spray structure of claim 1, wherein: the nozzle is characterized in that the insertion part (23) and the water collection part (22) of the nozzle (2) are integrally formed, and the longitudinal section of the nozzle (2) is T-shaped.

5. The spray structure of claim 1, wherein: the periphery wall of water collection portion (22) is formed with the mount table (220) rather than inside being linked together, the end of intaking of nozzle (21) is installed on mount table (220).

6. The shower structure according to any one of claims 1 to 5, wherein: at least two nozzles (21) are arranged on the water collecting part (22), each nozzle (21) is obliquely arranged relative to the water collecting part (22), and the nozzles (21) are arranged in a clockwise or anticlockwise spiral direction on the whole.

7. The spray structure of claim 6, wherein: at least two of the nozzles (21) have different inclination angles and inclination directions.

8. The spray structure of claim 7, wherein: the wall surface of the water collecting part (22) back to the spray arm (1) is called a third wall surface (223), the included angle between the central line (21 a) of the nozzle (21) and the plane of the third wall surface (223) is alpha, and the alpha is more than 0 and less than 90 degrees; a connecting line from the center (A) of the third wall surface (223) to the water inlet end (B) of the nozzle (21) is marked as AB, an included angle beta between the center line (21 a) of the nozzle (21) and AB is more than 0 and less than 360 degrees, and an included angle theta is formed between the projection of the center line (21 a) of the nozzle (21) on the third wall surface (223) and AB and is more than 0 and less than 360 degrees.

9. The shower structure according to any one of claims 1 to 5, wherein: the spray head (2) and the spray holes (13) are arranged on a first wall surface (14) of the spray arm (1), the water inlet (12) is arranged on a second wall surface (15) opposite to the first wall surface (14) of the spray arm (1), and the water inlet (12) is arranged close to the middle of the spray arm (1).

10. The shower structure according to any one of claims 1 to 5, wherein: the spray arm (1) is strip-shaped, and the spray head (2) is arranged close to the end part of the spray arm (1).

11. The spray structure of claim 10, wherein: the number of the spray heads (2) is at least two, and the positions, adjacent to two end parts, of the spray arm (1) are provided with the spray heads (2).

12. A cleaning machine using the spray structure of any one of claims 1 to 9, characterized in that: still including the box that has the inner chamber, spray arm (1) can set up in the inner chamber of box with rotating, still be equipped with in the inner chamber and be used for placing tableware or vegetables and fruits supporter (3), one side of supporter (3) is located in spray arm (1), orifice (13) and nozzle (21) are all towards the position at supporter (3) place.

13. The washing machine as claimed in claim 12, wherein: the inner cavity of the box body is cubic, the spray arm (1) is strip-shaped, and the spray head (2) is arranged close to the end part of the spray arm (1).

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