CN219206806U

CN219206806U - Spraying mechanism and cleaning machine with same

Info

Publication number: CN219206806U
Application number: CN202320383594.3U
Authority: CN
Inventors: 顾洪良
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2023-02-24
Filing date: 2023-02-24
Publication date: 2023-06-20
Anticipated expiration: 2033-02-24

Abstract

A spraying mechanism comprises a spraying arm, wherein a gas storage cavity is formed in the inner part of the spraying arm in a hollow manner; the output shaft of the motor extends upwards and penetrates through the first bottom wall of the air storage cavity to extend into the air storage cavity; the first bottom wall of the air storage cavity of the spray arm is provided with an annular groove extending circumferentially around the output shaft of the motor, and the notch of the annular groove faces upwards; the sealing cover is positioned in the air storage cavity, the sealing cover is provided with a top wall and a peripheral wall extending downwards from the periphery of the top wall, the center of the top wall is restrained with the output shaft of the motor and can rotate along with the output shaft of the motor, the peripheral wall extends circumferentially around the output shaft of the motor, and the lower edge of the peripheral wall is inserted into the annular groove. The utility model also discloses a cleaning machine with the spraying mechanism. Compared with the prior art, the utility model can reduce the risk of air leakage of the air storage cavity.

Description

Spraying mechanism and cleaning machine with same

Technical Field

The utility model belongs to the technical field of household appliances, and particularly relates to a spraying mechanism and a cleaning machine with the same.

Background

The existing cleaning machine generally lifts water by a water pump and sprays the water to dishes in a cleaning space by a spray arm so as to achieve the cleaning effect.

In order to improve the cleaning effect, the applicant designs a scheme of adding air into a spray arm to enable bubbles to be entrained in water flow, such as a structure disclosed in Chinese patent application publication No. 201721042431.X (patent publication No. CN 208243529U), of a cleaning machine, the cleaning machine comprises a box body and a cleaning mechanism arranged in the box body, wherein the cleaning mechanism at least comprises the spray arm, the spray arm is provided with a water storage cavity, a water outlet and a water inlet which are communicated with the water storage cavity, the spray arm further comprises an air adding structure capable of inputting air into the water storage cavity of the spray arm, an air collecting cavity connected with the air adding structure is arranged in the water storage cavity of the spray arm, and an air guiding channel extending towards the water outlet direction of the spray arm is arranged on the air collecting cavity. The guide channel can guide the added gas, so that the added gas is subjected to cavitation with the water flow and bubbles are generated in the water flow and then sprayed out of the water outlet hole rapidly, bubble cracking failure caused by too long conveying flow of the water flow is avoided, when the water flow mixed with the bubbles sprays to the dishes, the bubbles in the water flow contact the dishes to crack and generate larger impact force, and therefore stubborn dirt on the dishes or vegetables and fruits is dispersed, and a better cleaning effect is achieved. Meanwhile, in order to supply water to the water storage cavity and supply air to the air collection cavity, the cleaning machine further comprises a motor and an impeller, wherein a water inlet of the impeller penetrating through the spray arm is positioned in the water storage cavity, the lower part of the impeller is positioned below the spray arm, the motor is arranged on the outer side of the box body, an output shaft of the motor penetrates through the box body to be connected with the impeller, the output shaft of the motor is hollow, a first end of the output shaft is connected with the air guide pipe, and a second end of the output shaft is communicated with the air collection cavity and is rotationally connected with the spray arm.

In the above-mentioned scheme, because the motor output shaft passes the perforation on the air collecting cavity diapire and stretches into the air collecting cavity, there is the problem that gas in the air collecting cavity leaks to the water storage chamber through the perforation, and if gas leaks to the water storage chamber, can make the impeller form stranded gas, influences the drawing of impeller to make the spray arm unable rotation, finally influence the normal work of cleaning machine.

Disclosure of Invention

The first technical problem to be solved by the present utility model is to provide a spraying mechanism to reduce the risk of air leakage in the internal chamber.

The second technical problem to be solved by the utility model is to provide a cleaning machine with the spraying mechanism.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: a spray mechanism, comprising:

the spray arm is internally hollow and is provided with a gas storage cavity;

the output shaft of the motor extends upwards and penetrates through the first bottom wall of the air storage cavity to extend into the air storage cavity;

the method is characterized in that:

the first bottom wall of the air storage cavity of the spray arm is provided with an annular groove extending circumferentially around the output shaft of the motor, and the notch of the annular groove faces upwards;

the spraying mechanism also comprises:

the sealing cover is positioned in the air storage cavity and is provided with a top wall and a peripheral wall extending downwards from the periphery of the top wall, the center of the top wall is restrained with the output shaft of the motor and can rotate along with the output shaft of the motor, the peripheral wall extends circumferentially around the output shaft of the motor, and the lower edge of the peripheral wall is inserted into the annular groove.

Therefore, when the device is used, the annular groove can be filled with liquid, and the lower edge of the peripheral wall of the sealing cover is always immersed in the liquid in the annular groove in the rotation process of the sealing cover along with the output shaft of the motor, so that a circle of water seal is formed in the air storage cavity, and the gas leakage in the air storage cavity is avoided.

Preferably, the top wall of the sealing cover is sleeved on the periphery of the output shaft of the motor and is in threaded connection with the output shaft.

Preferably, the lower edge of the peripheral wall of the sealing cover is spaced opposite to the bottom wall of the annular groove. Thus, friction between the lower edge of the peripheral wall and the bottom wall of the annular groove during rotation can be avoided.

Preferably, the inner side surface of the peripheral wall of the sealing cover is opposite to the inner ring side wall of the corresponding annular groove at intervals; the outer side face of the peripheral wall of the sealing cover is opposite to the outer ring side wall of the corresponding annular groove at intervals.

In the above scheme, in order to further avoid the gas leakage of the gas storage cavity, preferably, the motor further comprises a sealing ring circumferentially sleeved on the periphery of the output shaft of the motor and located below the first bottom wall of the gas storage cavity, the inner peripheral surface of the sealing ring is in sealing fit with the outer peripheral surface of the output shaft, and the upper end surface of the sealing ring is in sealing fit with the first bottom wall of the gas storage cavity. Therefore, the sealing cover is used for the first sealing, the sealing ring plays a role in the second sealing, and gas leakage can be effectively prevented under the double sealing effect.

In each of the above schemes, preferably, the spray arm further has a liquid storage cavity inside, the liquid storage cavity is located below the liquid storage cavity and separated by a first bottom wall of the liquid storage cavity, a water inlet penetrating through the wall thickness is formed in the center of a second bottom wall of the liquid storage cavity, an output shaft of the motor penetrates through the water inlet, a nozzle is arranged on the first bottom wall of the liquid storage cavity, a water inlet of the nozzle faces downwards and is communicated with the liquid storage cavity, a water outlet of the nozzle faces upwards, a spray opening penetrating through the wall thickness is formed in a first top wall of the liquid storage cavity, and the spray opening is arranged corresponding to the water outlet of the nozzle.

Preferably, the output shaft of the motor is hollow to form an air supply channel, the upper port of the air supply channel is communicated with the air storage cavity, and the lower port of the air supply channel is communicated with the outside.

The utility model solves the second technical problem by adopting the technical proposal that: a cleaning machine with spray mechanism as described above, characterized in that: the washing machine comprises a box body, wherein a washing cavity is formed in the interior of the box body, and the spray arm is arranged at the bottom of the washing cavity in a mode of rotating around the output shaft.

Compared with the prior art, the utility model has the advantages that: the first bottom wall of the air storage cavity of the spray arm is provided with the annular groove extending circumferentially around the motor output shaft, the sealing cover is additionally arranged, the center of the top wall of the sealing cover is restrained with the motor output shaft, the peripheral wall of the sealing cover extends circumferentially around the motor output shaft, the lower edge of the peripheral wall is inserted into the annular groove, so that the annular groove can be filled with liquid when the air storage cavity is used, the sealing cover is always immersed in the liquid in the annular groove along with the rotation of the motor output shaft, and therefore, a circle of water seal is formed in the air storage cavity, and gas leakage in the air storage cavity is avoided.

Drawings

FIG. 1 is a schematic view of a cleaning machine according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a washer according to an embodiment of the present utility model;

fig. 3 is an enlarged view of a portion a in fig. 2;

fig. 4 is an exploded perspective view of a spray mechanism in an embodiment of the utility model.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 4, a spraying mechanism and a cleaning machine having the same according to a preferred embodiment of the present utility model, the spraying mechanism includes a spray arm 1, a motor 2, a sealing cover 3, a sealing ring 4, and an impeller 6.

Wherein, spray arm 1 inside cavity is formed with air storage chamber 11 and stock solution chamber 12, stock solution chamber 12 is located air storage chamber 11's below and separates through air storage chamber 11's first diapire 110, and stock solution chamber 12's second diapire 120 central authorities are equipped with the water inlet 121 that runs through the wall thickness, air storage chamber 11's first roof is equipped with the spray port 112 that runs through the wall thickness, air storage chamber 11's first diapire 110 is equipped with nozzle 13, nozzle 13's water inlet is down and is linked together with stock solution chamber 12, nozzle 13's delivery port up and with spray port 112 between the next interval relatively, be formed with the clearance between the two, this clearance intercommunication air storage chamber 11, so, the hydroenergy that nozzle 13's delivery port spouted smuggles carries the gas in air storage chamber 11.

The motor 2 is disposed below the spray arm 1, and the output shaft 20 of the motor 2 extends upward, and sequentially passes through the water inlet 121 of the second bottom wall 120 of the liquid storage cavity and the first bottom wall 110 of the gas storage cavity 11 to extend into the gas storage cavity 11. And the output shaft 20 of the motor 2 is hollow to form an air supply channel 21, the upper port of the air supply channel 21 is communicated with the air storage cavity 11, and the lower port is communicated with the outside. In this way, the air supply passage 21 can supply air to the air storage chamber 11.

The impeller 6 is sleeved on the periphery of the output shaft 20 of the motor 2 and rotates along with the output shaft 20, the upper part of the impeller 6 extends into the water inlet 121, and the lower part of the impeller 6 is positioned below the spray arm 1.

As shown in fig. 3 and 4, the sealing cover 3 is located in the air storage chamber 11, and has a top wall 31 and a peripheral wall 32 extending downward from the periphery of the top wall 31, the center of the top wall 31 is sleeved on the periphery of the output shaft 20 of the motor 2, is screwed to the output shaft 20, and can rotate with the output shaft 20 of the motor 2, and the peripheral wall 32 extends circumferentially around the output shaft 20 of the motor 2. The first bottom wall 110 of the air storage chamber 11 of the shower arm 1 is provided with an annular groove 111 extending circumferentially around the motor output shaft 20, and the notch of the annular groove 111 faces upward for inserting the lower edge of the peripheral wall 32 of the seal cover 3 therein. And the lower edge of the peripheral wall 32 of the seal cover 3 is spaced apart from the bottom wall of the annular groove 111. The inner side surface of the peripheral wall 32 of the sealing cover 3 is opposite to the inner ring side wall of the corresponding annular groove 111 at intervals; the outer side face of the peripheral wall 32 of the seal cover 3 is opposed to the outer circumferential side wall of the corresponding annular groove 111 with a space therebetween.

The sealing ring 4 is circumferentially sleeved on the outer periphery of the output shaft 20 of the motor 2 and is positioned below the first bottom wall 110 of the air storage cavity 11, the inner peripheral surface of the sealing ring 4 is in sealing fit with the outer peripheral surface of the output shaft 20, and the upper end surface of the sealing ring 4 is in sealing fit with the first bottom wall 110 of the air storage cavity 11.

In this way, when in use, the annular groove 111 can be filled with liquid, and the lower edge of the peripheral wall of the sealing cover is always immersed in the liquid in the annular groove in the rotation process of the sealing cover along with the output shaft of the motor, so that a circle of water seal is formed in the air storage cavity, and the gas leakage in the air storage cavity is avoided. And the sealing effect can be further improved by the arrangement of the sealing ring 4.

In order to facilitate the addition of water to the annular recess 111, the first top wall of the gas storage chamber 11 of the shower arm 1 is provided with an opening and with a cover plate 14 opening and closing the opening.

The cleaning machine of this embodiment includes a box 5 and the spraying mechanism, the box 5 is hollow to form a washing chamber 50 with an open top, and the spraying arm 1 is rotatably disposed at the bottom of the washing chamber 50 around the output shaft 20.

In the description and claims of the present utility model, terms indicating directions, such as "upper", "lower", "side", "top", "bottom", etc., are used to describe various example structural parts and elements of the present utility model, but these terms are used herein for convenience of description only and are determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the utility model may be arranged in a variety of orientations, the directional terminology is used for purposes of illustration and is in no way limiting, such as "upper" and "lower" are not necessarily limited to being in a direction opposite or coincident with the direction of gravity.

Claims

1. A spray mechanism, comprising:

the spray arm (1) is internally hollow and is provided with a gas storage cavity (11);

a motor (2) with an output shaft (20) extending upward and through a first bottom wall (110) of the air storage chamber (11) into the air storage chamber (11);

the method is characterized in that:

the first bottom wall (110) of the air storage cavity (11) of the spray arm (1) is provided with an annular groove (111) extending circumferentially around the motor output shaft (20), and the notch of the annular groove (111) faces upwards;

the spraying mechanism also comprises:

the sealing cover (3) is positioned in the air storage cavity (11) and is provided with a top wall (31) and a peripheral wall (32) extending downwards from the periphery of the top wall (31), the center of the top wall (31) is restrained with the output shaft (20) of the motor (2) and can rotate along with the output shaft (20) of the motor (2), the peripheral wall (32) extends circumferentially around the output shaft (20) of the motor (2), and the lower edge of the peripheral wall (32) is inserted into the annular groove (111).

2. The spray mechanism of claim 1, wherein: the top wall (31) of the sealing cover (3) is sleeved on the periphery of the output shaft (20) of the motor (2) and is in threaded connection with the output shaft (20).

3. The spray mechanism of claim 1, wherein: the lower edge of the peripheral wall (32) of the seal cover (3) is spaced apart from the bottom wall of the annular groove (111).

4. The spray mechanism of claim 1, wherein: the inner side surface of the peripheral wall (32) of the sealing cover (3) is opposite to the inner ring side wall of the corresponding annular groove (111) at intervals; the outer side surface of the peripheral wall (32) of the sealing cover (3) is opposite to the outer ring side wall of the corresponding annular groove (111) at intervals.

5. The spray mechanism of claim 1, wherein: the motor is characterized by further comprising a sealing ring (4), wherein the sealing ring is circumferentially sleeved on the periphery of the output shaft (20) of the motor (2) and positioned below the first bottom wall (110) of the gas storage cavity (11), the inner peripheral surface of the sealing ring (4) is in sealing fit with the outer peripheral surface of the output shaft (20), and the upper end surface of the sealing ring (4) is in sealing fit with the first bottom wall (110) of the gas storage cavity (11).

6. The spray mechanism of any one of claims 1 to 5, wherein: the inside of spray arm (1) still has stock solution chamber (12), stock solution chamber (12) are located the below of stock solution chamber (11) and pass through first diapire (110) of stock solution chamber (11) separates, just second diapire (120) central authorities of stock solution chamber (12) are equipped with water inlet (121) that run through the wall thickness, and output shaft (20) of this water inlet (121) power supply machine (2) pass, first diapire (110) of stock solution chamber (11) are equipped with nozzle (13), the water inlet of nozzle (13) face down and are linked together with stock solution chamber (12), the delivery port of nozzle (13) up, just first roof of stock solution chamber (11) is equipped with spray gate (112) that run through the wall thickness, spray gate (112) correspond the delivery port arrangement of nozzle (13).

7. The spray mechanism of claim 6, wherein: the output shaft (20) of the motor (2) is hollow and is provided with an air supply channel (21), the upper port of the air supply channel (21) is communicated with the air storage cavity (11), and the lower port is communicated with the outside.

8. A cleaning machine having a spray mechanism as claimed in any one of claims 1 to 7, wherein: the washing device comprises a box body (5), wherein a washing cavity (50) is formed in the interior of the box body, and the spray arm (1) is arranged at the bottom of the washing cavity (50) in a mode of being capable of rotating around the output shaft (20).