阅读说明：本技术 一种除泡沫装置及应用有该除泡沫装置的清洗机 (Remove foam device and use cleaning machine that has this foam device that removes ) 是由 侯修群 于 2018-09-05 设计创作，主要内容包括：本发明公开了一种除泡沫装置,包括主体、用于将水和泡沫通过离心作用分离的叶轮,其特征在于：所述主体呈上、下开口的中空状,所述主体内形成容置腔,所述叶轮设置在容置腔的上部,所述容置腔的下部构成泡沫收集腔,所述主体的侧面设置有出水管道,所述出水管道与主体的连通处与叶轮对应,所述出水管道和主体内的泡沫收集腔之间还连接有气体管道,所述气体管道和出水管道的连通处设置有气体单向阀,所述气体单向阀使得气体管道向出水管道单向导通。还公开了一种应用有上述除泡沫装置的清洗机。(The invention discloses a defoaming device, which comprises a main body and an impeller used for separating water and foam through centrifugal action, and is characterized in that: the main part is upper and lower open-ended cavity form, form the holding chamber in the main part, the impeller sets up the upper portion in the holding chamber, the lower part in holding chamber constitutes the foam and collects the chamber, the side of main part is provided with outlet conduit, outlet conduit corresponds with the impeller with the intercommunication department of main part, still be connected with gas line between the foam collection chamber in outlet conduit and the main part, gas line and outlet conduit's intercommunication department is provided with gaseous check valve, gaseous check valve makes gas line one-way conduction to outlet conduit. Also discloses a cleaning machine using the defoaming device.)

1. A defoaming device comprising a main body (1), an impeller (2) for separating water and foam by centrifugation, characterized in that: the main part (1) is the cavity form of upper and lower open-ended, form holding chamber (11) in main part (1), impeller (2) set up the upper portion in holding chamber (11), the lower part in holding chamber (11) constitutes foam collection chamber (15), the side of main part (1) is provided with outlet conduit (6), outlet conduit (6) and the intercommunication department of main part (1) correspond with impeller (2), still be connected with gas pipeline (7) between foam collection chamber (15) in outlet conduit (6) and main part (1), the intercommunication department of gas pipeline (7) and outlet conduit (6) is provided with gaseous check valve (8), gaseous check valve (8) make gas pipeline (7) to outlet conduit (6) one-way conduction.

2. The defoaming apparatus of claim 1, wherein: the middle of the accommodating cavity (11) of the main body (1) is provided with an impeller supporting part (12), the impeller (2) is supported above the impeller supporting part (12), and the foam collecting cavity (15) is positioned below the impeller supporting part (12).

3. The defoaming apparatus of claim 2, wherein: the impeller is characterized in that an impeller transmission shaft (3) extending longitudinally penetrates through the center of the impeller (2), a motor (4) is arranged outside the main body (1), and an output shaft (41) of the motor (4) extends into the main body (1) and is connected with the impeller transmission shaft (3) to drive the impeller transmission shaft (3) to rotate.

4. The defoaming apparatus of claim 3, wherein: an output shaft (41) of the motor (4) extends into the main body (1), a first gear (31) is arranged at the lower end of the impeller transmission shaft (3), a second gear (411) is arranged at the end part, connected with the impeller transmission shaft (3), of the output shaft (41), and the second gear (411) is a bevel gear.

5. The defoaming apparatus of claim 3, wherein: the impeller structure sealing structure is characterized in that a transmission structure sealing cavity (14) is arranged below the impeller supporting part (12), the main body (1) further comprises a shaft supporting part (13) extending inwards from the side wall of the main body (1) in the radial direction, the shaft supporting part (13) is located below the impeller supporting part (12), a shaft hole (131) is formed in the shaft supporting part (13), the end part of the shaft hole (131) is communicated with the transmission structure sealing cavity (14), the lower end part of the impeller transmission shaft (3) extends into the transmission structure sealing cavity (14), and an output shaft (41) of the motor (4) penetrates through the shaft hole (131) until the output shaft reaches the transmission structure sealing cavity (14) and is connected with the impeller transmission shaft (3).

6. The defoaming apparatus according to any one of claims 1 to 5, wherein: the impeller (2) comprises a hollow cylindrical shell (21) with an upper opening and a lower opening, the peripheral wall of the shell (21) is hollowed, a filter screen (22) is arranged at the hollowed part, a centrifugal impeller (23) is arranged in the shell (21), a baffle (25) is arranged on the top surface of the shell (21), and a foam separation area (26) is formed in an area below the baffle (25) in the shell (21).

7. The defoaming apparatus of claim 3, wherein: the top of casing (21) is provided with the water guide board (24) of intaking that upwards extends, the hollow cylinder shape of upper and lower open-ended is drawn water guide board (24), baffle (25) set up between the top surface periphery of casing (21) and the bottom surface periphery of intaking guide board (24).

8. A cleaning machine applying the defoaming device of any one of claims 1 to 7, comprising a water tank body (200) and a water discharge valve (300) arranged at the bottom of the water tank body (200), wherein the water discharge valve (300) comprises a first water discharge opening (301) and a second water discharge opening (302), and the defoaming device is arranged at the first water discharge opening (301).

9. The cleaning machine of claim 8, wherein: the water outlet pipe (6) is also connected to a water inlet pipe of the water tank body (200).

Technical Field

The invention relates to kitchen equipment, in particular to a cleaning machine and a defoaming device thereof.

Background

A dishwasher is an apparatus that sprays cold or hot water to a dish to remove dirt adhered to the dish and wash the dish. Dishes are placed in a dish frame in a dishwasher, and a general dishwasher includes a pump and a spray head to spray washing water, a heater to generate hot water, and the like. These dishwashers all have a common disadvantage in that they require a large space and are not suitable for use in many households having a large population and a small living area, and thus are not commonly used in many households.

In order to save space, many designs of water tank type cleaning machines have been developed, that is, an existing water tank is modified into a cleaning machine, the water tank is directly used as a washing space, and a rotary spray arm is generally arranged at the bottom of the water tank and is usually connected with a pump body driven by a motor. The tank structure of the water tank type cleaning machine disclosed in the applicant's chinese patent application No. 201310749724.1 comprises a tank body forming a washing space, the tank body including a water tank body, a locally recessed area at the bottom of the water tank body, a heating assembly disposed in the locally recessed area, a water pump disposed in the locally recessed area, a motor disposed below the bottom, and an output shaft of the motor extending upward into the water tank body to drive the water pump; if the Chinese patent with the application number of 201620705427.6 discloses a basin formula dish washer heating device again, the main part is the dish that generates heat, and the dish that generates heat sets up in the bottom of box, and the kerve center pin of box is equipped with the motor hole, and the kerve of motor hole both sides is equipped with apopore and heating region respectively.

The dishwasher can produce the bubble at the in-process that uses, especially when containing the protein of yolk class on the tableware, can produce a large amount of bubbles in the dishwasher in the cleaning process, and the experimental result shows that, when producing a large amount of bubbles in the dishwasher, the power of water pump reduces, and the bubble still can hinder the rotation of spray arm for the cleaning performance of dishwasher is discounted greatly, sometimes even can appear washing unclean condition. Therefore, further improvements are desired.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide a foam removing device which can ensure the normal operation of a water pump and improve the cleaning efficiency aiming at the problems in the prior art.

The second technical problem to be solved by the invention is to provide a cleaning machine applying the defoaming device.

The technical scheme adopted by the invention for solving the first technical problem is as follows: a defoaming device comprising a body, an impeller for separating water and foam by centrifugation, characterized in that: the main part is upper and lower open-ended cavity form, form the holding chamber in the main part, the impeller sets up the upper portion in the holding chamber, the lower part in holding chamber constitutes the foam and collects the chamber, the side of main part is provided with outlet conduit, outlet conduit corresponds with the impeller with the intercommunication department of main part, still be connected with gas line between the foam collection chamber in outlet conduit and the main part, gas line and outlet conduit's intercommunication department is provided with gaseous check valve, gaseous check valve makes gas line one-way conduction to outlet conduit.

In order to facilitate the arrangement of the impeller, an impeller supporting part is arranged in the middle of the containing cavity of the main body, the impeller is supported above the impeller supporting part, and the foam collecting cavity is positioned below the impeller supporting part.

In order to drive the impeller conveniently, a longitudinally extending impeller transmission shaft penetrates through the center of the impeller, a motor is arranged outside the main body, and an output shaft of the motor extends into the main body and is connected with the impeller transmission shaft to drive the impeller transmission shaft to rotate.

In order to facilitate transmission between the motor and the impeller, an output shaft of the motor extends into the main body, a first gear is arranged at the lower end part of the impeller transmission shaft, a second gear is arranged at the end part of the output shaft connected with the impeller transmission shaft, and the second gear is a bevel gear.

Preferably, a transmission structure sealed cavity is arranged below the impeller supporting part, the main body further comprises a shaft supporting part extending radially inwards from the side wall of the main body, the shaft supporting part is positioned below the impeller supporting part, a shaft hole is formed in the shaft supporting part, the end part of the shaft hole is communicated with the transmission structure sealed cavity, the lower end part of the impeller transmission shaft extends into the transmission structure sealed cavity, and the output shaft of the motor penetrates through the shaft hole until reaching the transmission structure sealed cavity and is connected with the impeller transmission shaft.

Preferably, the impeller comprises a hollow cylindrical shell with an upper opening and a lower opening, the peripheral wall of the shell is hollow, a filter screen is arranged at the hollow part, the centrifugal impeller is arranged in the shell, the top surface of the shell is provided with a baffle, and an area below the baffle in the shell forms a foam separation area.

In order to guide the drainage water flow to enter the defoaming device conveniently, the top of the shell is provided with a water inlet guide plate which extends upwards, the water inlet guide plate is in a hollow cylindrical shape with an upper opening and a lower opening, and the baffle is arranged between the periphery of the top surface of the shell and the periphery of the bottom surface of the water inlet guide plate.

The technical scheme adopted by the invention for solving the second technical problem is as follows: the cleaning machine with the foam removing device comprises a water tank body and a water discharge valve arranged at the bottom of the water tank body, wherein the water discharge valve comprises a first water discharge port and a second water discharge port, and the foam removing device is arranged at the first water discharge port.

In order to recycle water to realize self-cleaning of the whole system, the water outlet pipeline is also connected to a water inlet pipe of the water tank body.

Compared with the prior art, the invention has the advantages that: the separation of air bubbles and water is realized by utilizing a centrifugal principle, and the micro negative pressure in the foam collecting cavity is realized by utilizing a jet self-suction principle, so that the air bubbles and the water can be quickly and efficiently separated; the foam removing device is arranged on the drain valve of the double-drain port, so that the space is saved, and the installation is convenient; and self-cleaning of the system is realized by utilizing circulating water.

Drawings

FIG. 1 is a schematic view of a foam removing apparatus applied to a cleaning machine according to an embodiment of the present invention;

FIG. 2 is a schematic view of a defoaming device according to an embodiment of the present invention;

FIG. 3 is an exploded view of a defoaming device according to an embodiment of the present invention;

FIG. 4 is a schematic view of the main body of a defoaming device according to an embodiment of the present invention;

FIG. 5 is a schematic view of an impeller of a defoaming device in accordance with an embodiment of the present invention;

FIG. 6 is a cross-sectional view of a defoaming device in accordance with an embodiment of the present invention;

fig. 7 is a sectional view taken along a-a of the defoaming device of fig. 2.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

Referring to fig. 1, in a washing machine to which the defoaming device of the present invention is applied, a drain valve 300 is disposed at the bottom of a tank body 200 of the washing machine, the drain valve 300 adopts a double-outlet structure, the defoaming device 100 is disposed at a first drain outlet 301, and a second drain outlet 302 of the drain valve 300 is connected to a normal drain pipe.

Referring to fig. 2 and 3, the defoaming device 100 includes a main body 1, an impeller 2, an impeller driving shaft 3, a motor 4, and a sealing cover 5.

The foam generated in the working process of the cleaning machine is difficult to break, but the density of the foam is very low compared with that of water, so the principle of removing the foam is to separate the water from the bubbles under the action of centrifugal force of the impeller by utilizing the difference of the densities of the water and the foam, thereby removing the bubbles in the cleaning process of the cleaning machine.

Specifically, referring to fig. 4, the main body 1 is hollow with upper and lower openings, and a housing cavity 11 is formed therein, and the impeller 2 is disposed in the housing cavity 11 of the main body 1. The middle of the containing cavity 11 of the main body 1 is provided with an impeller supporting part 12, the impeller 2 is supported above the impeller supporting part 12, and a transmission structure sealing cavity 14 is arranged below the impeller supporting part 12. The sealing cover 5 is arranged at the bottom of the transmission structure sealing cavity 14 to close it. Thereby, the lower portion of the impeller supporting portion 12 forms a foam collecting chamber 15. The upper end of the main body 1 is provided with an internal thread for connecting with the drain valve 300, and the lower end of the main body 1 is provided with an external thread for connecting with a drain pipe.

Referring to fig. 6, an impeller shaft 3 penetrates through the center of the impeller 2, the motor 4 is disposed outside the main body 1, and an output shaft 41 of the motor 4 extends into the main body 1 and is connected to the impeller shaft 3. The impeller drive shaft 3 extends in the longitudinal direction and the output shaft 41 of the motor 4 extends in the transverse direction. The impeller transmission shaft 3 penetrates through the bottom end of the impeller 2 and extends into the transmission structure sealed cavity 14, and the end part of the impeller transmission shaft 3, which is positioned in the transmission structure sealed cavity 14, is provided with a first gear 31. The main body 1 further includes a shaft support 13 extending radially inward from a sidewall of the main body 1, the shaft support 13 being located below the impeller support 12, and a shaft hole 131 being formed in the shaft support 13, an end of the shaft hole 131 communicating with the transmission structure seal chamber 14. The output shaft 41 of the motor 4 penetrates from the shaft hole 131 until reaching the transmission structure sealed cavity 14, the end part of the output shaft 41 positioned in the transmission structure sealed cavity 14 is provided with a second gear 411, the second gear 411 is a bevel gear, and the first gear 31 and the second gear 411 are meshed with each other, so that the horizontal rotation of the output shaft 41 is converted into the vertical rotation of the impeller transmission shaft 3. Therefore, the operation of the motor 4 can drive the impeller transmission shaft 3 to rotate, thereby driving the impeller 2 to rotate.

Alternatively, the end of the output shaft 41 of the motor 4 may also be provided with a worm gear structure, which is matched with the first gear 31 of the impeller transmission shaft 3, as long as the horizontal rotation of the output shaft 41 can be converted into the vertical rotation of the impeller transmission shaft 3.

Referring to fig. 5, the impeller 2 includes a hollow cylindrical casing 21 having upper and lower openings, and the casing 21 has a hollow peripheral wall and a strainer 22 provided at the hollow peripheral wall. A centrifugal impeller 23 is provided in the housing 21, and the impeller drive shaft 3 passes through the center of the centrifugal impeller 23. The top of casing 21 is provided with the intake guide plate 24 that upwards extends, and intake guide plate 24 is upper and lower open-ended hollow cylinder. A baffle 25 is provided between the outer periphery of the top surface of the housing 21 and the outer periphery of the bottom surface of the water inlet guide plate 24, and a region below the baffle 25 in the housing 21 constitutes a foam separation region 26. The water inlet guide plate 24 is used to face the water discharge valve 300 so as to guide the water of the sump body 200 to the centrifugal impeller 23, and the strainer 22 is used to block the bubbles from radially leaving the impeller 2.

Referring to fig. 7, the foam removing device 100 further includes a water outlet pipe 6 disposed outside the main body 1 and communicating with the inside of the main body 1, the position where the water outlet pipe 6 communicates with the main body 1 may be located above the impeller support portion 12 (corresponding to the impeller 2), a gas pipe 7 is further connected between the water outlet pipe 6 and the main body 1, and the position where the gas pipe 7 communicates with the main body 1 corresponds to the foam collecting chamber 15. And a gas one-way valve 8 is arranged at the communication part of the gas pipeline 7 and the water outlet pipeline 6. The outlet conduit 6 may be re-connected to the inlet tube of the sink body 200.

In the invention, the principle that the water flow discharged to the water outlet pipe 6 by the impeller 2 is high in speed and low in pressure is utilized, and the water flow is connected with the foam collecting cavity 15 through the gas pipe 7, so that negative pressure can be formed in the foam collecting cavity 15 through the self-suction principle (the gas enters the water outlet pipe 6 from the foam collecting cavity 15 through the gas pipe 7 to form the negative pressure), and the falling and the collection of bubbles separated by the impeller 2 are accelerated. The gas check valve 8 only allows gas from the foam collection chamber 15 into the outlet conduit 6 and does not allow water in the outlet conduit 6 into the foam collection chamber 15.

When the motor 4 drives the impeller 2 to rotate, the water with foam entering the impeller 2 easily passes through the filter screen 22 due to the high density of the water under the action of centrifugal force, and the foam hardly passes through the filter screen 22 and falls to the foam collecting chamber 15 under the action of gravity and negative pressure formed by self-suction due to the low density of the foam.

In order to effectively separate air bubbles and water, the rotational speed of the centrifugal impeller 23 is high, and the surface area of the blades of the centrifugal impeller 23 is increased appropriately.

In the normal in-process that washes the dishes, when the motor power who detects the water pump drops to a definite value, the first drain opening 301 that drain valve 300 and remove foam device 100 and link to each other is opened, removes foam device 100's motor 4 simultaneously and begins to rotate, and the water that impeller 2 separated passes through the cleaning machine inlet tube and reenters in the basin body 200, and the foam of separating then gets into the drain pipe through the export of main part 1 lower extreme. When the cleaning machine is normally drained, the first drain opening 301 connected to the blasting device 100 is closed, and the second drain opening 302 is opened.