CN114569035A

CN114569035A - Sprayer and dish washing machine

Info

Publication number: CN114569035A
Application number: CN202011387217.4A
Authority: CN
Inventors: 陶现民; 杨林; 解婷; 孔成; 曹魁
Original assignee: Qingdao Haier Dishwasher Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Dishwasher Co Ltd; Haier Smart Home Co Ltd
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2022-06-03

Abstract

The invention discloses a sprayer and a dish washing machine, wherein the sprayer comprises a spray arm, a spray chamber and a spray cover, wherein the spray arm is provided with a spray cavity; the rotating shaft is connected with the spraying arm, and the spraying arm can rotate around the rotating shaft; the spray arm is provided with a spray cavity, a first spray hole and a second spray hole, wherein the first spray hole is arranged on the spray arm, communicated with the spray cavity and used for spraying water outwards to provide power for the spray arm to rotate; and the valve is arranged in the spraying cavity or the first spray hole and used for controlling the opening and closing of the water spray of the first spray hole so as to change the rotating state of the spraying arm. The valve controls the opening and closing of the first spray hole to spray water, changes the rotation state of the spray arm, enables the spray arm to rotate clockwise and anticlockwise, can control various rotation states of the spray arm on one hand, and increases the spray range on the other hand, effectively reduces the spray dead angle, and improves the spray effect.

Description

Sprayer and dish washing machine

Technical Field

The invention belongs to the field of household appliances, and particularly relates to a sprayer and a dish washing machine.

Background

With the improvement of living standard, the requirements of people on living quality are higher and higher, so that the requirements on the quality, the performance, the humanization of use, the intellectualization of operation and the like of products are higher and higher. The dish washer as an excellent product gradually enters the life of people, and the sprayer as one of the key parts of the dish washer directly influences whether the tableware can be washed cleanly or not.

The dish washer is used to automatically clean tableware, such as dish, chopsticks, dish, knife, fork, etc. and has less labor strength, high work efficiency and high cleaning effect. The existing household dish washing machine generally has a rotary spraying type spray header, the spray header is provided with a cavity, the top of the cavity is provided with a group of spray holes, and the spray holes are sprayed to tableware for washing through high-pressure water flow. The functions of clockwise spraying and rinsing and anticlockwise spraying and rinsing can not be realized, and the probability of dead angles is increased.

Chinese patent with application number CN201710597885.1 discloses a dish washer spray arm and dish washer, dish washer spray arm includes: the first water spraying assembly is provided with a first spraying port, and the second water spraying assembly is provided with a second spraying port; the opening directions of the first spraying port and the second spraying port are different, and the spraying water flow of the dish-washing machine is sprayed out from the first spraying port/the second spraying port, so that the first spraying component/the second spraying component rotate towards different directions under the reverse action of the spraying water flow. The dishwasher adopts the dishwasher spray arm, and realizes that the dishwasher spray arm rotates towards different directions by controlling the inflow water to respectively enter the first water spray component or the second water spray component.

Although the dishwasher spray arm in the above scheme can realize the rotation towards two directions, two spray arms need to be arranged on the dishwasher and relevant spray components are configured, so that the occupied area of the sprayer in the dishwasher is increased, the placing quantity of the dishware to be washed is reduced, inconvenience is brought to users, and the production cost of the dishwasher is increased.

The present invention has been made in view of the above-mentioned technical drawbacks.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects in the prior art, and provide a sprayer with a valve, wherein the angular momentum at two ends of a spray arm is changed through the opening and closing state of the valve, so that the aim of changing the rotation direction of the spray arm is fulfilled.

In order to solve the technical problems, the invention adopts the technical scheme that:

a sprayer comprises a water-spraying device,

a spray arm having a spray cavity;

the rotating shaft is connected with the spraying arm, and the spraying arm can rotate around the rotating shaft;

also comprises

The first spray hole is arranged on the spray arm, is communicated with the spray cavity and is used for spraying water outwards to provide power for the rotation of the spray arm;

and the valve is arranged in the spraying cavity or the first spray hole and used for controlling the opening and closing of the water spray of the first spray hole so as to change the rotating state of the spraying arm.

By adopting the above scheme, the switching state of valve can control the switching of first orifice water spray, changes the rotation state of spray arm for spray arm can clockwise rotation again can anticlockwise rotation, can control spray arm's multiple rotation state on the one hand, and on the other hand has increased the spray range, has reduced effectively and has sprayed the dead angle, has improved the effect that sprays.

Further, the on-off state of the valve is controlled by the water pressure in the spraying cavity;

preferably, when the water pressure in the spraying cavity is greater than a set value, the valve is in an open state, otherwise, the valve is in a closed state.

Further, the valve is a duckbill valve.

Through adopting above-mentioned scheme, the on-off state of the water pressure control valve of intracavity sprays need not to increase extra power structure for the structure of spray thrower is comparatively simple, and manufacturing cost is lower.

Further, the spray arm has the following two states:

in the valve opening state, the spray arm is driven to rotate along one direction by utilizing the water spray of the first spray hole;

in the valve closed state, the spray arms rotate in opposite directions or are stationary.

Furthermore, the spraying arm is also provided with a second spray hole which is communicated with the spraying cavity and used for spraying water outwards and driving the spraying arm to rotate along the opposite direction.

Through adopting above-mentioned scheme, the second orifice outwards sprays water, can drive the spray arm rotatory along opposite direction for the spray arm can rotate clockwise, also can anticlockwise rotation. In addition, the number and the distribution range of the spray holes on the spray arm are increased, so that the spray range of the sprayer is wider, the spray area is larger, and the spray dead angle is further reduced.

Furthermore, the first spray hole and the second spray hole are positioned at the same end of the spray arm;

preferably, openings of the first spray hole and the second spray hole are formed in two opposite side walls of the spray arm;

preferably, the distance between the first nozzle hole and the rotation axis is greater than the distance between the second nozzle hole and the rotation axis.

Furthermore, the first spray holes and the second spray holes are distributed at two ends of the spray arm;

preferably, the openings of the first spray hole and the second spray hole are on the same side wall of the spray arm;

By adopting the scheme, the distance between the first spray holes and the rotating shaft is larger than that between the second spray holes and the rotating shaft, so that the first spray holes spray water outwards to provide rotating power for the spray arm which is larger than that provided by the second spray holes to spray water outwards to provide reverse rotating power for the spray arm, and the aim of changing the rotating direction of the spray arm in the state that the valve is opened is fulfilled.

Furthermore, a water inlet is formed in the spraying arm, a water spraying channel for communicating the water inlet with the first spraying hole is formed in the spraying cavity, and the valve is arranged in the water spraying channel.

Furthermore, the spraying arm is provided with a plurality of spraying nozzles, the water spraying angle of at least one spraying nozzle can be adjusted, and a first spray hole for driving the spraying arm to rotate is formed by adjusting the water spraying angle of the spraying nozzle.

By adopting the scheme, in the process of spraying water by the sprayer, the spraying nozzles can be adjusted as required, the spraying direction is changed, and the aim of spraying the objects to be sprayed at different positions is fulfilled. In addition, the first spray hole is formed by changing the angle of the spray nozzle, so that the spray nozzle is flexible and convenient, the rotating state of the spray arm can be changed conveniently, the operation is convenient, the adjusting range is wide, the applicability is strong, and the adjustment and the use of a user are convenient.

A dishwasher with the sprayer comprises

The water pressure adjusting unit is used for controlling the water inlet pressure of the sprayer;

preferably, the water pressure regulating unit comprises a pump, and the rotation speed of the pump is adjustable.

Through adopting above-mentioned scheme, the dish washer that has this sprayer can diversely wash the tableware, reduces the abluent dead angle of tableware, can improve the cleaning performance to the tableware. In addition, the water pressure adjusting unit can adjust the water pressure, so that the opening and closing of the valve are controlled, the purpose of controlling the first spray hole is achieved, and the device is simple and convenient.

After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.

1. The spray arm of the sprayer can be switched among various rotating states, and comprises the switching of clockwise rotation and anticlockwise rotation, and the switching between rotation and static states is flexible and convenient, so that the spray range is enlarged, the spray dead angle is effectively reduced, and the spray effect is improved.

2. This sprayer is through setting up the valve spraying the intracavity, and then the switching that leads to of the first orifice of control through the switch of valve, changes the difference value of the moment of the rotatory power in spray arm both sides, and then reaches the purpose that changes the spray arm rotation state, and this sprayer structure is comparatively simple, and manufacturing cost is lower to can not lead to the occupation space grow of sprayer, the suitability is stronger.

3. The switch of the valve is controlled by the water pressure in the spraying cavity, and a user does not need to manually operate the control switch, so that convenience is provided for the user.

4. The water spray angle of the spray nozzle is adjustable, a first spray hole can be formed by adjusting the water spray angle of the spray nozzle, the operation is convenient, the adjusting range is wide, the applicability is strong, and the user can adjust and use the spray nozzle conveniently. In addition, the spray nozzles can be adjusted according to needs, the spraying direction is changed, and the aims of spraying objects to be sprayed at different positions and reducing spraying dead angles are fulfilled.

5. The dish washer that has this sprayer, the switching of valve is by the water pressure control who sprays the intracavity, and hydraulic size is controlled by water pressure regulating unit, water pressure regulating unit is current dish washer's basic device, consequently this sprayer need not to increase extra power device, can realize the switching of valve, can realize the change of the rotation state of spray arm, reduces the washing dead angle of treating the washing tableware, can not lead to the cost to increase substantially yet.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments and that for a person skilled in the art, other drawings can also be derived from them without inventive effort. In the drawings:

fig. 1 is a schematic structural view of the sprinkler of the present invention.

In the figure: 1. a spray arm; 101. a first nozzle hole; 102. a second nozzle hole; 2. a rotating shaft; 3. a water inlet; 4. a spray chamber; 5. and (4) a valve.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, the sprayer of the invention comprises a spray arm 1, which is provided with a spray cavity 4; the rotating shaft 2 is connected with the spray arm 1, and the spray arm 1 can rotate around the rotating shaft 2; the spraying device also comprises a first spray hole 101 which is arranged on the spraying arm 1, is communicated with the spraying cavity 4 and is used for spraying water outwards to provide power for the spraying arm 1 to rotate; and the valve 5 is arranged in the spraying cavity 4 or the first spraying hole 101 and is used for controlling the opening and closing of the spraying of the first spraying hole 101 so as to change the rotating state of the spraying arm 1.

The sprayer controls the opening and closing of the water spraying of the first spray hole 101 through the opening and closing of the control valve 5, changes the rotating state of the spray arm 1, enables the spray arm 1 to rotate and be static, has the functions of clockwise and anticlockwise spraying, enlarges the cleaning range, effectively reduces the cleaning dead angle and improves the cleaning effect.

The valve 5 is completely filled in the spraying cavity 4 or the first spray hole 101, and when the valve 5 is closed, the water flow can be completely prevented, and when the valve is opened, the water flow can be allowed.

The valve 5 is provided with one, and the first nozzle hole 101 is provided with at least one and is positioned at the downstream of the valve 5. Or, the plurality of valves 5 are provided, the plurality of first spray holes 101 are provided, and the plurality of first spray holes 101 are respectively used for controlling the opening and closing of different first spray holes 101, and different rotary power is provided for the spray arm 1 when the opening and closing states of the plurality of valves 5 are different, so that the spray arm 1 has different angular momentum.

The opening and closing state of the valve 5 is controlled by the water pressure in the spraying cavity 4; preferably, when the water pressure in the spraying cavity 4 is greater than a set value, the valve 5 is in an open state, otherwise, the valve 5 is in a closed state.

Further, as shown in fig. 1, the valve 5 is a duckbill valve. The duckbill valve has an outlet on one side facing downstream of the spray chamber 4.

Preferably, the duckbill valve is a rubber duckbill valve. The rubber formula, the manufacturing process and the physical shape of the rubber duckbilled valve can be selected and adjusted according to actual needs, and then the pressure value for opening the outlet of the rubber duckbilled valve is set.

When the internal pressure of the duckbill valve used in the invention is gradually increased, the outlet of the duckbill valve is gradually expanded and opened, and when the internal pressure is smaller than a set value, the outlet of the duckbill valve is in a closed state under the action of the elasticity of the material of the outlet. The novel sealing device has the advantages of no movable part or mechanical part, low price, convenience in maintenance, light weight, small volume, good sealing property, long service life, capability of changing various installation forms according to needs and convenience in installation. In addition, the water pressure in the sprayer controls the switching state of the duckbill valve, and an additional power structure is not required to be added, so that the structure of the sprayer is simpler, and the production cost is lower.

The spray arm 1 has the following two states: in the opening state of the valve 5, the spray arm 1 is driven to rotate along one direction by the water spray of the first spray hole 101; in the closed state of the valve 5, the spray arm 1 rotates in the opposite direction or is stationary.

The spray arm 1 of the invention is opened and closed through the valve 5, and the rotation and stop states of the spray arm 1 are switched, so that the aim of controlling the spray arm 1 is achieved, or the rotation reverse direction of the spray arm 1 is changed, so that the spray arm 1 can rotate clockwise and anticlockwise, the spray range is enlarged, the spray dead angle is effectively reduced, and the spray effect is improved.

As shown in fig. 1, the spray arm 1 is further provided with a second spray hole 102, which is communicated with the spray cavity 4 and is used for spraying water outwards to drive the spray arm 1 to rotate in an opposite direction.

The number of the second nozzle holes 102 is provided in plurality. The second spray holes 102 spray water outwards, the spray arm 1 can be driven to rotate in the opposite direction, and in addition, the number and the distribution range of the spray holes are increased, so that the spray range of the sprayer is wider, the spray area is larger, and the spray dead angle is further reduced.

In the working state of the sprayer, the moment of the rotary power provided by the first spray holes 101 and the second spray holes 102 for the spray arm 1 depends on the size, the orientation, the distance from the rotary shaft 2, the sprayed water pressure and the like of the spray holes. The factors ultimately influencing the magnitude of the torque of the rotary power are: the product of the rotating power of the sprayed water flow towards the rotating direction of the spray arm 1 and the distance of the rotating shaft 2.

The first nozzle hole 101 and the second nozzle hole 102 have the same caliber and shape, and are both circular or polygonal, so that the manufacturing and processing are convenient in the production process.

As an embodiment, the spray arm 1 is driven to rotate clockwise by the water flow sprayed from the first spray holes 101, and the spray arm 1 is driven to rotate counterclockwise by the water flow sprayed from the second spray holes 102. When the valve 5 is closed, the spray arm 1 rotates anticlockwise, and when the water pressure in the spray cavity 4 is greater than a set value, the valve 5 is opened, and the rotation direction of the spray arm 1 is changed from anticlockwise to clockwise.

The first spray holes 101 and the second spray holes 102 are positioned at the same end of the spray arm 1; preferably, the openings of the first nozzle hole 101 and the second nozzle hole 102 are on two opposite side walls of the spray arm 1; preferably, the distance between the first nozzle hole 101 and the rotation axis 2 is greater than the distance between the second nozzle hole 102 and the rotation axis 2.

Alternatively, as shown in fig. 1, the first spray holes 101 and the second spray holes 102 are distributed at two ends of the spray arm 1; preferably, the openings of the first nozzle hole 101 and the second nozzle hole 102 are on the same side wall of the spray arm 1; preferably, the distance between the first nozzle hole 101 and the rotation axis 2 is greater than the distance between the second nozzle hole 102 and the rotation axis 2.

The distance between the first spray holes 101 on the spray arm 1 and the rotating shaft 2 is larger than the distance between the second spray holes 102 and the rotating shaft 2, so that the power provided for the spray arm 1 to rotate by spraying water outwards from the first spray holes 101 is larger than the power provided for the spray arm 1 to rotate reversely by spraying water outwards from the second spray holes 102, and the aim of changing the rotating direction of the spray arm 1 under the state that the valve 5 is opened is fulfilled.

The spray arm 1 is provided with a water inlet 3, a spray cavity 4 is internally provided with a water spray channel for communicating the water inlet 3 with the first spray hole 101, and the valve 5 is arranged in the water spray channel. Preferably, two water spraying channels are provided, one end of each water spraying channel is communicated with the water inlet 3, the other end of each water spraying channel is communicated with the first spraying hole 101 and the second spraying hole 102 respectively, and the valve 5 and the first spraying hole 101 are located in the same water spraying channel and used for controlling the opening and closing of the first spraying hole 101 in a water spraying mode.

The spray arm 1 is provided with a plurality of spray nozzles, the water spray angle of at least one spray nozzle can be adjusted, and a first spray hole 101 for driving the spray arm 1 to rotate is formed by adjusting the water spray angle of the spray nozzle. In the process of spraying water by the sprayer, the spray nozzles can be adjusted as required, the spraying direction is changed, and the aim of spraying objects to be sprayed at different positions is fulfilled. In addition, the first spray hole 101 is formed by changing the angle of the spray nozzle, so that the spray arm is flexible and convenient, the rotating state of the spray arm 1 can be changed conveniently, the operation is convenient, the adjusting range is wide, the applicability is strong, and the adjustment and the use of a user are convenient.

As shown in fig. 1, the rotating shaft 2 is connected to the water inlet 3 and is located at the center of the spray arm 1. The gravity center of the spray arm 1 is located on the symmetry axis, the balance of the spray arm 1 can be ensured in the process of spraying and rotating the spray arm 1, the service life and the safety of the rotating shaft 2 are improved, and the noise generated when the spray arm 1 rotates is reduced. In addition, in the production and manufacturing process, engineers can calculate and compare the torque of the rotating power at the two ends of the spray arm 1 conveniently, so that the difference between the two ends can be reflected more intuitively.

A dishwasher with the sprayer comprises a water pressure adjusting unit, a water inlet pipe and a water outlet pipe, wherein the water pressure adjusting unit is used for controlling the water inlet pressure of the sprayer; preferably, the water pressure regulating unit comprises a pump, and the rotation speed of the pump is adjustable.

The water pressure adjusting unit can also be a water inlet pipeline with adjustable pipe diameter, and the water inlet pressure of the sprayer is changed by changing the pipe diameter of the water inlet pipeline.

The dish washing machine with the sprayer can wash tableware in multiple directions, reduce the dead angle of tableware washing and improve the washing effect of the tableware. In addition, the water pressure regulating unit regulates the water inlet pressure of the sprayer, and then controls the opening and closing of the valve 5, so that the opening and closing purpose of controlling the first spray hole 101 to spray water is achieved, the washing machine is simple and convenient, and great convenience is provided for users to wash tableware.

The above embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention in any way, and although the present invention has been disclosed by the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make various changes and modifications to the equivalent embodiments by using the technical contents disclosed above without departing from the technical scope of the present invention, and the embodiments in the above embodiments can be further combined or replaced, but any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.

Claims

1. A sprayer comprises a spraying device,

a spray arm having a spray cavity;

it is characterized by also comprising

The first spray hole is arranged on the spray arm, is communicated with the spray cavity and is used for spraying water outwards to provide power for the spray arm to rotate;

2. The sprayer according to claim 1, wherein the open and closed state of said valve is controlled by the water pressure in said spray chamber;

3. The sprayer of claim 2, wherein the valve is a duckbill valve.

4. A spray thrower as claimed in any one of claims 1 to 3, wherein said spray arm has two states:

5. The sprayer according to claim 4, wherein said spray arm is further provided with a second spray aperture communicating with said spray chamber for spraying water outwardly to drive the spray arm to rotate in an opposite direction.

6. The sprayer according to claim 4 or 5, wherein the first spray hole and the second spray hole are located at the same end of the spray arm;

preferably, the openings of the first spray hole and the second spray hole are formed on two opposite side walls of the spray arm;

7. The sprayer according to claim 4 or 5, wherein the first spray holes and the second spray holes are distributed at two ends of the spray arm;

8. The sprayer according to any one of claims 1 to 7, wherein the spray arm is provided with a water inlet, the spray chamber is provided with a spray passage communicating the water inlet with the first spray orifice, and the valve is disposed in the spray passage.

9. The sprayer according to any one of claims 1 to 8, wherein the spray arm is provided with a plurality of spray nozzles, a spray angle of at least one of the spray nozzles is adjustable, and the first spray holes for driving the spray arm to rotate are formed by adjusting the spray angle of the spray nozzle.

10. A dishwasher having a spray thrower as claimed in any one of claims 1 to 9, comprising