WO2018023945A1

WO2018023945A1 - Spray arm used for fruit-and-vegetable cleaning machine, and fruit-and-vegetable cleaning machine

Info

Publication number: WO2018023945A1
Application number: PCT/CN2017/000464
Authority: WO
Inventors: 诸永定; 徐慧; 郑峰; 范文粲; 石颖青; 茅忠群
Original assignee: 宁波方太厨具有限公司
Priority date: 2016-08-02
Filing date: 2017-07-24
Publication date: 2018-02-08
Also published as: CN106073553B; CN106073553A

Abstract

Provided is a spray arm used for a fruit-and-vegetable cleaning machine (3); the inside of the spray arm (3) is hollow and forms a flow-diverting channel (31); the top surface of the spray arm (3) is provided with spray holes in communication with the flow-diverting channel (31); the spray holes are distributed at intervals in a ring shape at the position of the peripheral edge of the adjacent spray arm (3). Also provided is a fruit-and-vegetable cleaning machine using the described spray arm (3). The spray holes being arranged on the peripheral edge of the spray arm (3) enables the spray holes to perform their function to a greater extent, thus preventing fruits and vegetables from accumulating on the outer periphery of the spray arm while also causing the water flow ejected from the spray holes to form a ring-shaped rotating water flow; thus fruits and vegetables are caused to rotate in a certain direction in a food basket, and the fruits and vegetables remain in a state of motion with respect to a sink and a water flow; hence, the water flow scours each surface of the to-be-washed fruits and vegetables, cleaning with no neglected areas.

Description

Spray arm and fruit and vegetable washing machine for cleaning fruits and vegetables

Technical field

The invention relates to the technical field of a washing machine, in particular to a spray arm for cleaning fruits and vegetables, and a fruit and vegetable washing machine to which the spray arm is applied.

Background technique

The existing fruit and vegetable washing machine usually achieves cleaning in two ways: one is to drive the washing basket to rotate, and the water is sprayed from top to bottom into the washing basket to wash the fruits and vegetables in the washing basket; The water is pumped from the bottom of the washing bucket to a certain height by a water pump and then sprayed out to spray the fruits and vegetables.

The first type of cleaning structure is a new type of fruit and vegetable washing machine disclosed in Chinese Patent No. CN204335774U (Application No. 201420767984.1), including a spraying device, a washing basket disposed in the washing tub, and a synchronous motor disposed at the bottom of the washing tub. The shower device includes a water pump and a nozzle. The water inlet of the water pump is disposed at the side wall or the bottom of the cleaning bucket, and the water outlet of the water pump is connected to one end of the water conduit provided on the side of the cleaning bucket. The other end of the water conduit is opened above the side of the cleaning basket, and the end portion thereof is disposed. There is a nozzle with an adjustable installation angle. The synchronous motor drives the cleaning basket to rotate, and the sprinkler device cleans the spray of fruits and vegetables in the cleaning basket.

The second cleaning structure is a water tank type washing machine disclosed in Chinese Patent No. CN105545790A (Application No. 201610110965.5), which comprises a water tank body, an open water pump with a water inlet at the bottom thereof, and a water outlet component of the water pump is sprayed. The arm and the spray arm are connected to the water tank body, and the water pump sucks the water in the water tank body and sprays it from the spray arm to clean the fruits and vegetables.

These cleaning devices are usually only sprayed (or soaked). The way the water flows on the fruits and vegetables may cause the accumulation of fruits and vegetables, and there are certain cleanings for some fruits and vegetables with a small amount of surface. The effect, but for those fruits and vegetables with a large number of surfaces, such as leafy vegetables, it is difficult to obtain a better cleaning effect.

Summary of the invention

The first technical problem to be solved by the present invention is to provide a spray arm for cleaning a fruit and vegetable that increases the cleaning area and improves the cleaning effect in view of the above problems in the prior art.

A second technical problem to be solved by the present invention is to provide a fruit and vegetable washing machine to which the above spray arm is applied.

The technical solution adopted by the present invention to solve the above first technical problem is: a spray arm for cleaning fruits and vegetables, wherein the spray arm is hollow to form a split passage, and the top surface of the spray arm is opened The spray hole communicating with the split passage is characterized in that the spray holes are annularly distributed at a position adjacent to a circumference of the spray arm.

Preferably, in order to enable the fruits and vegetables to rotate in a certain direction in the basket, relative to the body of the sink and the water flow, The vegetables are all in a moving state, and the opening directions of the shower holes are all oriented in the same rotational direction such that the water jetted from the shower holes forms an annular rotating water flow. Thereby, the water flow can be flushed to each surface of the fruits and vegetables to be cleaned, and the cleaning without dead angle is obtained, and a better cleaning effect is obtained.

In order to better form the rotating water flow, according to the preferred embodiment of the present invention, the spray hole includes at least two first spray holes spaced apart on one side edge of the spray arm, and another spray gun on the spray arm. At least two second shower holes spaced apart on the side edges, and at least two third spray holes spaced apart on one end edge of the spray arm, the first spray hole and the second spray hole Arranging along the length direction of the spray arm and coincident with the extending direction of the corresponding edge of the spray arm, the third spray hole is arranged along the width direction of the spray arm and extending from one end of the spray arm The direction is the same.

According to the preferred embodiment of the present invention, the water jet direction is changed by the inclination of the opening to form a swirling water flow, and the opening direction of the second spray hole is directed toward the first end in the longitudinal direction of the spray arm, and is constant with the horizontal direction. An upward tilt of the angle: the opening direction of the first shower hole is toward the second end in the longitudinal direction of the spray arm, and is inclined upward at an angle to the horizontal direction; and the third spray hole is located at the The first end of the spray arm in the longitudinal direction, the opening direction of the third spray hole is also the second end in the longitudinal direction of the spray arm, and is inclined upward at an angle to the horizontal direction.

The technical solution adopted by the present invention to solve the above second technical problem is: a fruit and vegetable washing machine using the above spray arm, comprising a water tank body and a water pump, close to a portion of the first end of the spray arm in the longitudinal direction a water inlet is opened, the water pump is located below the water inlet, and a water inlet of the water pump corresponds to a water inlet on the spray arm, and a water outlet of the water pump and a shunt in the spray arm The channels are connected.

In order to facilitate the provision of various cleaning methods and improve the cleaning effect, the bottom of the water tank body is provided with an ultrasonic generating device.

In order to facilitate uniform action on the fruits and vegetables in the basket, a portion near the second end in the longitudinal direction of the spray arm is hollow to form a perforation, and the ultrasonic generating device is located below the perforation.

Compared with the prior art, the invention has the advantages that by arranging the spray holes on the periphery of the spray arm, the spray holes can be made to function as much as possible to avoid the accumulation of fruits and vegetables on the outer circumference of the spray arms. In addition, the spray holes are arranged according to a certain regularity, and the direction of the openings is set, so that the water jet sprayed from the spray holes can form an annular rotating water flow, exerting a force on the fruits and vegetables, so that the fruits and vegetables can be inside the vegetable basket. Rotating in a certain direction, the fruit and vegetable are in a state of motion relative to the body of the water tank and the water flow, whereby the water flow can be washed onto each surface of the fruit and vegetable to be cleaned, and the cleaning without dead angle is obtained, and a good cleaning effect is obtained.

DRAWINGS

Figure 1 is a schematic structural view of a fruit and vegetable washing machine of the present invention (hidden basket);

2 is a schematic exploded view of the fruit and vegetable washing machine of the present invention;

Figure 3 is a cross-sectional view of the fruit and vegetable washing machine of the present invention;

Figure 4 is a schematic view showing the structure of the spray arm of the fruit and vegetable washing machine of the present invention.

detailed description

The invention will be further described in detail below with reference to the embodiments of the drawings.

As shown in Figs. 1 to 3, a preferred embodiment of the fruit and vegetable washing machine of the present invention is shown. The fruit and vegetable washing machine comprises a water tank body 1, a water pump 2 and a spray arm 3, the water pump 2 is arranged at the bottom of the water tank body 1, and the spray arm 3 is used as a water outlet component of the water pump 2, and the water pumped by the water pump 2 is ejected thereby The fruits and vegetables to be cleaned in the water tank body 1 are cleaned.

In the embodiment of the present invention, the water tank body 1 is formed into a long and narrow shape, thereby not only better adapting to the space of the user's kitchen (cooperating with other water tanks), but also saving water with a relatively square water tank.

The water pump 2 is biased at the bottom of the water tank body 1, such as the first end of the water tank body 1 in the longitudinal direction, and the water pump 2 includes a motor 21 and an impeller 22, wherein the motor 21 is located below the bottom of the water tank body 1, and the impeller 22 is located Inside the bottom of the sink body 1. The bottom of the water tank body 1 is adjacent to the first end of the water tank body 1 and defines a first mounting hole 11 . The motor 21 is located below the first mounting hole 11 of the water tank body 1 and corresponds to the position of the first mounting hole 11 , and the output shaft thereof It extends upward into the water tank body 1 through the first mounting hole 11. In the present invention, preferably, the impeller 22 includes a chassis 221, a center shaft 222, and a plurality of blades 223 that are adapted to the shape and size of the first mounting hole 11.

In the present embodiment, the water inlet of the water pump 2 is located above the impeller 22 (upper water), and the water outlet is located at the side of the impeller 22, that is, the height of the water outlet is substantially the same as the height of the blade 223, and therefore, the impeller 22 does not need to be The water flow is lifted upward from the bottom, and the blade 223 only needs to adopt a relatively simple straight blade structure, which not only has a simple structure, but also makes the processing greatly convenient. Alternatively, the water inlet of the water pump 2 can also be located below, and the water flow is lifted upward from the bottom. The structure of the water pump 2 is the same as that of the Chinese patent No. CN105545790A (Application No. 201610110965.5), or the Chinese patent No. CN104235071A (Application No. 201310752573.5) mentioned in the background, and is not described herein again.

The bottom of the water tank body 1 is provided with an ultrasonic generating device 4, and the second end of the bottom of the water tank body 1 in the longitudinal direction is provided with a water purifier 5 and a drain valve 6, and the dirty water after washing can be discharged through the water purifier 5 and the drain valve 6. . The water tank body 8 is further provided with a vegetable basket 8 for placing the fruits and vegetables to be cleaned. The upper edge of the vegetable basket 8 rests on the inner side wall of the upper end of the water tank body 1. The bottom of the vegetable basket 8 is located at the spray arm 3 and the ultrasonic generating device 4 And above the drainer 5. A second mounting hole 12 is defined in a position corresponding to the ultrasonic generating device 4 at the bottom of the water tank body 1 for mounting the ultrasonic generating device 4; a third mounting hole 13 is defined in a position corresponding to the bottom of the water tank body 1 and the water purifier 5; It is thus used to install the drainer 5.

The spray arm 3 has an elliptical shape as a whole, and is hollow inside to form a flow dividing passage 31, which communicates with the water outlet of the water pump 2. The communication between the flow dividing passage 31 and the water pump 2 can be referred to the Chinese patent CN105545790A mentioned in the background art (application number) For 201610110965.5). A water inlet 32 is opened near a portion of the first end of the spray arm 3 (close to the first end in the longitudinal direction of the water tank body 1), and the water pump 2 is located below the water inlet 32 so that water in the water tank body 1 can pass through the water inlet 32. Entering the water pump 2, the upper water of the water pump 2 is realized. Near the second end of the spray arm 3 (away from the sink body 1 long) The portion of the first end in the direction of the dimension is hollow so as to form a perforation 33, and the ultrasonic generating device 4 described above is located below the perforation 33. Preferably, the ultrasonic generating device 4 is located at a central position of the bottom of the water tank body 1, whereby the fruits and vegetables in the vegetable basket 8 can be uniformly generated. The top surface of the spray arm 3 is provided with a plurality of spray holes communicating with the flow dividing passage 31. The water pumped by the water pump 2 enters the split passage 31 of the spray arm 3 through the water outlet, and is sprayed from the spray hole. Wash fruits and vegetables. The spray arm 3 and the ultrasonic generating device 4 are used together to obtain a better cleaning effect.

In the cleaning, preferably, water is first injected into the water tank body 1 until the position of the fruits and vegetables is not passed. At this time, the ultrasonic generating device 4 is turned on for a certain period of time, and under the cavitation of the ultrasonic waves, the dirt on the fruits and vegetables is loosened; The water pump 2 is started, and the impeller 22 of the water pump 2 rotates at a high speed to cooperate with the flow dividing passage 31 in the spray arm 3 to form a high-pressure water flow, which is ejected from the spray hole of the spray arm 3, because the water level in the water tank body 1 is high. The spray water does not spray out the water tank body 1, but interacts with other water flows in the water tank body 1 to form a turbulent flow rate and direction, thereby washing the soil and vegetables that have been loosened away from fruits and vegetables; After a certain period of time, the dirty water is discharged; finally, water is injected into the water tank body 1 again, and the water pump 2 is started. The water flow is sprayed from the spray holes of the spray arm 3, and then the fruits and vegetables are rinsed once to achieve the purpose of automatic cleaning. The ultrasonic waves interact with the water flow to achieve the cleaning effect that they cannot achieve when cleaning alone, and also reduce the waste of energy.

In order to achieve no dead angle cleaning of fruits and vegetables, in the present embodiment, the position and angle of the spray holes are designed. Referring to FIG. 4, the spray holes are spacedly spaced adjacent to the peripheral position of the spray arm 3, including at least two first spray holes 341 spaced apart on one side of the spray arm 3, and another spray sensor 3 At least two second shower holes 342 spaced apart on the side edges, and at least two third sprays spaced apart on the edge of the first end of the spray arm 3 (the end near the first end of the water tank body 1) a hole 343, wherein the first spray hole 341 and the second spray hole 342 are arranged along the length direction of the spray arm 3, and coincide with the extending direction of the corresponding edge of the spray arm 3, and the third spray hole 343 is sprayed along The spray arms 3 are distributed in the width direction and coincide with the extending direction of the first end of the spray arm 3.

The opening direction of the first spray hole 341 faces the second end of the spray arm 3, and is inclined upward at an angle to the horizontal direction, and the opening direction of the second spray hole 342 is toward the first of the spray arm 3. The end is inclined upward at an angle to the horizontal direction, and the opening direction of the third spray hole 343 is also toward the second end of the spray arm 3, and is inclined upward at an angle to the horizontal direction. Therefore, after the opening directions of the three sets of spray holes are arranged, the water flow ejected from the spray holes can form an annular rotating water flow, and the force is applied to the fruits and vegetables, so that the fruits and vegetables can be surely inside the vegetable basket 8. The direction is rotated, and the fruit and vegetable are in a state of motion relative to the body of the water tank 1 and the water flow, whereby the water flow can be washed to each surface of the fruit and vegetable to be cleaned, and the cleaning without dead angle is obtained, and a good cleaning effect is obtained.

In the present embodiment, the shower hole allows the jetted water stream to be formed as a clockwise swirling water flow. Alternatively, the direction of the spray hole can be changed such that the water flow is formed as a counterclockwise swirling water flow.

In the present embodiment, since the water tank body 1 has a rectangular shape, when it is necessary to provide the water ejector 5 described above, the water pump 2 and the spray arm 3 are both offset to the water tank body 1 in order to have sufficient space for the water ejector 5 to be disposed. Inside, spray arm The first end of the tank 3 is adjacent to the first end of the water tank body 1, and the second end of the spray arm 3 is disposed between the second end of the water tank body 1 and the second end of the water tank body 1, the first end of the water tank body 1 and the spray The spacing between the first ends of the arms 3 is less than the spacing between the second end of the sink body 1 and the second end of the spray arm 3. However, in this arrangement, after the fruit and vegetables move above the water purifier 5 under the action of the water flow, it is easy to accumulate here, and cannot return to the effective range of the water flow above the spray arm 3, so the position of the fruits and vegetables needs to be manually adjusted. It is only possible to continue cleaning, which is more inconvenient to use. To this end, a first injection hole 351 and a second injection hole 352 are respectively disposed at the second end edge of the spray arm 3, respectively communicating with the flow dividing passage 31, and the second spray hole 352 is located at the first spray hole 351 in the direction of water flow rotation. Downstream. The first injection hole 351 is located at the side of the second end edge of the spray arm 3, faces the second end of the water tank body 1, and is inclined upward at an angle to the horizontal direction, and the second injection hole 352 is located at the spray arm 3. The top surface of the second end edge faces the first end of the sink body 1 and is inclined upward at an angle to the horizontal direction. The water jet sprayed from the first spray hole 351 is sprayed obliquely upward toward the second end of the water tank body 1, and is folded back after hitting the side wall of the water tank body 1, thereby generating a vertical component to lift the fruits and vegetables upwards, thereby preventing the deposition of fruits and vegetables. Above the water ejector 5, the resulting horizontal component pushes the fruit and vegetables away from the second end of the water tank body 1 (i.e., toward the direction above the spray arm 3); the water sprayed by the second spray hole 352 faces the water tank body The first end of the first end is sprayed obliquely upward. When the water sprayed by the first spray hole 351 is pushed to move above the spray arm 3, the second spray hole 352 can further apply the same direction of force on the fruits and vegetables, assisting the first The orifice 351 allows the fruit and vegetables to accelerate back to the speed above the spray arm 3.

Thus, referring to FIG. 1, FIG. 3 and FIG. 4, wherein the arrow indicates the direction of the water flow, the water flow sprayed by the first spray hole 341 pushes the fruit and vegetable to the second end of the water tank body 1 and above the water purifier 5, and the first After the water jetted from the nozzle hole 351 reaches the vegetable basket 8, the water flowing back from the first spray hole 341 is reversely flowed in the upper portion of the liquid surface, so that the fruit and vegetables at the second end of the water tank body 1 are reversely folded back. The water flowing from the second injection hole 352 is swept back to the top of the spray arm 3; thereafter, under the action of the second spray hole 342, the fruit and vegetable are pushed to the first end of the water tank body 1; The flushing of the water jet sprayed by the three spray holes 343 returns to the upper side of the first spray hole 341, thereby forming a rotating water flow and a rotational movement trajectory of the fruits and vegetables. If the above-mentioned turbulent cleaning method is used, a better cleaning effect can be achieved.

Claims

A spray arm for cleaning fruits and vegetables, wherein the spray arm (3) is hollow to form a split passage (31), and a top surface of the spray arm (3) is opened and the split passage (31) The communicating spray holes are characterized in that the spray holes are annularly distributed at a position adjacent to the periphery of the spray arm (3).
The spray arm according to claim 1, wherein the opening directions of the shower holes are all oriented in the same rotational direction such that the flow of water ejected from the shower holes forms an annular swirling water flow.
A spray arm according to claim 1, wherein said spray hole comprises at least two first spray holes (341) spaced apart on one side edge of said spray arm (3), located at At least two second shower holes (342) spaced apart on the other side edge of the spray arm (3), and at least two third sprays spaced apart on one end edge of the spray arm (3) a shower hole (343), the first spray hole (341) and the second spray hole (342) are arranged along the length direction of the spray arm (3), and are corresponding to the edge of the spray arm (3) The extending direction is uniform, and the third shower hole (343) is arranged along the width direction of the spray arm (3) and coincides with the extending direction of one end of the spray arm (3).
The spray arm according to claim 3, wherein the opening direction of the second shower hole (342) is toward the first end in the longitudinal direction of the spray arm (3), and is horizontal An upward inclination at an angle; the opening direction of the first shower hole (341) faces the second end in the longitudinal direction of the spray arm (3), and is inclined upward at an angle to the horizontal direction; The third spray hole (343) is located at a first end in the longitudinal direction of the spray arm (3), and the opening direction of the third spray hole (343) is also toward the length of the spray arm (3). The second end in the direction and inclined upward at an angle to the horizontal direction.
A fruit and vegetable washing machine using the spray arm according to any one of claims 1 to 4, comprising a water tank body (1) and a water pump (2) adjacent to the first end of the spray arm (3) in the longitudinal direction a portion of the water pump (2) is located below the water inlet (32), and the water inlet of the water pump (2) and the water inlet of the spray arm (3) (32) Correspondingly, the water outlet of the water pump (2) communicates with the flow dividing passage (31) in the spray arm (3).
A fruit and vegetable washing machine according to claim 5, characterized in that the bottom of the water tank body (1) is provided with an ultrasonic generating device (4).
A fruit and vegetable washing machine according to claim 6, wherein a portion adjacent to the second end in the longitudinal direction of the spray arm (3) is hollow to form a perforation (33), and the ultrasonic generating device (4) is located at Below the perforation (33).