CN215128212U - Defoaming device of dish washing machine and dish washing machine - Google Patents

Abstract

The utility model relates to a defoaming device and dish washer of dish washer, defoaming device include porous piece, porous piece includes a plurality of first defoaming holes, the washing chamber in the dish washer is located to porous piece, porous piece is located the foam motion route, through first defoaming hole filters the foam and passes through liquid. The utility model discloses, the dish is upwards sprayed to the liquid that sprays of washing bowl dish, then spray the liquid and mix with the greasy dirt and assemble washing chamber bottom under the action of gravity, when the liquid that sprays that assembles down produces more foam, the foam is along with the water syntropy flows, discharge washing chamber outside dish washer under predetermined motion route, porous spare has been set up in the washing intracavity of dish washer, and locate on the foam motion route with porous spare, so along with the flow of water, foam and porous spare take place to collide, and then the foam destroys and disappears and reach the defoaming purpose, moreover, the steam generator is simple in structure, easy to maintain, occupation space is less, do not need extra power to provide, the whole energy consumption of washing has been saved greatly.

Description

Defoaming device of dish washing machine and dish washing machine

Technical Field

The application relates to the field of water treatment, in particular to a defoaming device of a dish washing machine and the dish washing machine.

Background

Along with the improvement of the social science and technology level, the functions and the types of industrial equipment and domestic electric appliances are more diversified. In household appliances, the dish washer can automatically clean dishes, a washing pump and a sprayer are important components of a washing system of the dish washer, and the hydraulic performance of the washing pump and the working efficiency of the sprayer directly influence the level of cleaning rate.

The dish washer need add consumptive material such as detergent, rinsing agent in the course of the work, because these consumptive materials can produce the foam in the washing process, and too much then can influence the hydraulic performance of washing pump, also can hinder the rotation of shower, consume partly kinetic energy, on the other hand, too much also can cause the excessive of inner bag water of foam volume. The defoaming method of the existing dish washing machine is generally realized by using a defoaming agent, but the defoaming agent belongs to a chemical preparation and can have adverse effects on human health if being left in dishes. Therefore, some dishwashers eliminate foam by using stirring action by additionally arranging a stirring device in the washing cavity, but the space of the washing cavity in the dishwashers is small, and the stirring device causes complicated structure and is not easy to maintain and repair.

In view of the above, there is a need for an improved defoaming structure of a conventional dishwasher to simplify the defoaming structure.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem that the dish washing machine defoaming device in the prior art has a complex structure, the application provides a dish washing machine defoaming device and a dish washing machine.

In a first aspect, the present invention provides a defoaming device for a dishwasher, comprising a porous member, wherein the porous member comprises a plurality of first defoaming holes, the porous member is arranged in a washing chamber of the dishwasher, and the porous member is located on a foam movement path, through which the first defoaming holes filter foam and pass liquid.

In a preferred embodiment, the porous member is a mesh plate protruding from the bottom wall of the washing chamber.

In a preferred embodiment, the porous member is a mesh plate vertically disposed on a bottom wall of the washing chamber.

In a preferred embodiment, the porous member comprises a first end and a second end, the first end and/or the second end being provided with a spill-proof baffle comprising a plurality of second defoaming holes.

Further, in the above embodiment, the second defoaming hole has a larger pore size than the first defoaming hole.

Or further, in the above embodiments, the outer end of the spill-proof baffle is located at the boundary of the foam moving area, or the outer end of the spill-proof baffle crosses the boundary of the foam moving area.

In a preferred embodiment, the porous member is of a lattice structure and comprises a first side facing the foam, the first side comprising a plurality of edges and/or sharp corners for defoaming.

In a preferred embodiment, the porous member includes a support portion connected with the washing chamber.

Further, in the above embodiment, the supporting portion is provided with a buckle, and the bottom wall and the side wall of the washing cavity are provided with a clamping groove; or,

the supporting part is provided with a clamping groove, and the bottom wall and the side wall of the washing cavity are provided with buckles.

Furthermore, in the above embodiment, the plurality of slots or the plurality of fasteners are sequentially spaced along the inner wall of the washing chamber.

In a second aspect, the present invention provides a dishwasher, comprising a washing chamber, wherein the washing chamber is provided with a defoaming device having the above structure.

In a preferred embodiment, the washing chamber includes a sprayer therein, the sprayer including:

the rotating shaft penetrates through the bottom wall of the washing cavity from bottom to top;

the driving piece is provided with an output end, and the rotating shaft is connected to the output end; and the number of the first and second groups,

and the two spray arms are respectively communicated with the inner cavity of the rotating shaft and are higher than the liquid level of the water body.

Further, in the above embodiment, there is a spacing between the top of the multi-space and the bottom of the spray arm, the spacing being in the range of 6-10 mm.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages: the dish is upwards sprayed to the spraying liquid of washing bowl dish, then sprays the liquid and thoughtlessly with the greasy dirt and assemble the washing chamber bottom under the action of gravity, when the spraying liquid that assembles down produces more foam, the foam is along with the water syntropy flows, and it is outside washing chamber to the dish washer to discharge under predetermined motion route, the utility model discloses set up porous spare in the washing chamber of dish washer to locate on the foam motion route with porous spare, so along with the flow of water, the foam that has certain velocity of flow takes place to collide with porous spare, and then the foam breaks out and disappears and reach the defoaming purpose, simple structure, and easy to maintain, occupation space is less moreover, does not need extra power to provide, has saved the whole energy consumption of washing greatly.

Compared with chemical methods using defoaming agents and the like, the defoaming device of the utility model is safer; the rotating obstruction of the foam to the sprayer is reduced; the cavitation phenomenon generated by the foam is also reduced, and the water pressure of the washing pump is prevented from being reduced; the foam is prevented from carrying part of water to overflow upwards, so that the water level of the inner container rises, and the overflow fault of the dish washing machine is avoided. To sum up, the utility model discloses it is very favourable to promoting dishwasher's clean effect, reinforcing security.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

FIG. 1 is a schematic structural diagram of a dishwasher according to an embodiment of the present application;

fig. 2 is a schematic structural view of a sprayer and a porous member provided in an embodiment of the present application.

Wherein the reference numerals are:

10. a porous member; 101. a first end; 102. a second end; 11. a support portion; 20. an anti-overflow baffle; 30. foaming; 100. a dishwasher; 110. a door body; 120. a washing chamber; 130. a sprayer; 131. a rotating shaft; 132. and a spray arm.

Detailed Description

In order to solve the technical problem that the structure of the defoaming device in the dishwasher 100 is complicated in the prior art, the utility model provides a defoaming device and dishwasher 100 of all kinds of dishwasher 100, the water is through porous 10, and foam 30 is then filtered and is destroyed by porous 10. Besides the household appliances such as the dish washer 100, the defoaming device of the present invention is not limited to the dish washer 100, and can also be applied to the processing of industrial liquid products, such as sewage treatment, wine, paint, ink, detergent, etc., to improve the fluidity and stability of the liquid and facilitate the subsequent process treatment.

Referring to fig. 1 and 2, in a first aspect, the present invention provides a defoaming device for a dishwasher 100, including a porous member 10, the porous member 10 including a plurality of first defoaming holes, the porous member 10 being disposed in a washing chamber 120 of the dishwasher 100, the porous member 10 being disposed on a movement path of foam 30, and filtering the foam 30 through the first defoaming holes and passing liquid.

The technical scheme of the utility model, the washing bowl dish spray liquid upwards spray the bowl dish, then spray liquid and mix with the greasy dirt and assemble washing chamber 120 bottom under the action of gravity, when the spray liquid that assembles down produces more foam 30, foam 30 is along with the water syntropy flows, discharge washing chamber 120 outside dish washer 100 under predetermined motion route, the utility model discloses set up porous 10 in washing chamber 120 of dish washer 100 to locate on the foam motion route with porous 10, so along with the flow of water, foam 30 and the porous 10 emergence of having certain velocity of flow collide, and then foam 30 breaks out and disappears and reaches the defoaming purpose, simple structure, easy to maintain, occupation space is less moreover, does not need extra power to provide, has saved the whole energy consumption of washing greatly.

Compared with chemical methods using defoaming agents and the like, the defoaming device of the utility model is safer; the obstruction of the rotation of the sprinkler 130 by the foam 30 is reduced; the cavitation phenomenon generated by the foam 30 is also reduced, and the water pressure of the washing pump is prevented from being reduced; the foam 30 is prevented from carrying part of water to overflow upwards, so that the water level of the inner container rises, and the overflow fault of the dish washing machine 100 is avoided. To sum up, the utility model discloses it is very favourable to promoting dishwasher 100's washing effect, reinforcing security.

It is understood that the porous member 10 has a plurality of first defoaming holes, a portion of the foam 30 is crushed by being pressed through the porous member 10, another portion of the foam 30 escapes from the periphery of the porous member 10, and the foam 30 having a diameter smaller than the diameter of the first defoaming holes passes through the porous member 10. The pore size of the first defoaming holes is determined by considering not only the size of the foam 30 but also the flow velocity of the foam 30 (i.e., the water body on the upstream side of the porous member 10), which is determined by the rotational kinetic energy and gravitational potential energy of the spray liquid, and specifically, if the diameter of the foam 30 is generally between 0.8mm and 3.5mm, the pore size of the first defoaming holes is suitably between 1mm and 2.5 mm.

Referring to fig. 2, in a preferred embodiment, the porous member 10 is a mesh plate protruding from the bottom wall of the washing chamber 120. In the present embodiment, the porous member 10 is configured as a screen structure, and since the dish rack is disposed on the upper portion of the washing chamber 120 of the dishwasher 100, the upwardly sprayed washing liquid will eventually collect at the bottom of the washing chamber 120 under the action of gravity and be discharged out of the dishwasher 100 through the pipe. The screen plate is protruded on the bottom wall of the washing cavity 120, so that the screen plate can be fully contacted with the foam 30 and the water body, and the defoaming efficiency can be improved. Specifically, the washing chamber 120 is generally formed by a liner of the dishwasher 100, a bottom of the liner is provided with a filter screen for filtering food residues which are easy to block a pipeline, and the screen plate can be arranged at the bottom of the liner or on the filter screen.

In a preferred embodiment, the porous member 10 is a mesh plate vertically disposed at the bottom wall of the washing chamber 120. In this embodiment, considering that the water body is gathered at the bottom of the washing chamber 120 when the dishwasher 100 is in normal use, the mesh plate is vertically arranged to be perpendicular to the flow direction of the foam 30, which helps to quickly defoam the foam. The screen plate can also be arranged to form an included angle of less than 90 degrees with the liquid level of the water body, when the foam 30 passes through, the foam 30 is positioned on the liquid level of the water body due to buoyancy, and the inclination of the screen plate can extrude the upper part of the foam 30, so that the foam 30 can be eliminated more quickly. However, it can be understood that the included angle between the screen plate and the liquid level of the water body is not too small, so that the subsequent flow of the foam 30 is prevented from being influenced, and the foam 30 is prevented from being accumulated. The length of the screen plate can be controlled between 30 mm-150 mm according to the parameters of the layout of the inner container and the filter screen of the dishwasher 100, etc.

In a preferred embodiment, the porous member 10 includes a first end 101 and a second end 102, the first end 101 and/or the second end 102 is provided with the overflow-preventing baffle 20, and the overflow-preventing baffle 20 includes a plurality of second defoaming holes. In this embodiment, the overflow preventing baffle 20 is provided on the porous member 10, because when the porous member 10 is defoaming, the following foam 30 is blocked by the porous member 10 to reduce the flow rate and moves to both sides of the porous member 10, so that the overflow preventing baffle 20 may be provided at one or both of the first end 101 and the second end 102, the overflow preventing baffle 20 is provided with a second defoaming hole, and the foam 30 moving to both sides is defoamed by the second defoaming hole.

Further, in the above embodiment, the second defoaming hole has a larger pore size than the first defoaming hole. In this embodiment, since the flow rate is reduced after the foam 30 moves to both sides, in order to achieve the defoaming effect, the size of the second defoaming hole is set to be larger than that of the first defoaming hole, so that the foam 30 at both sides with the reduced flow rate can be conveniently filtered. Specifically, the pore size ratio of the first defoaming hole and the second defoaming hole may be set according to specific parameters such as the spraying height of the spray liquid, the shape of the bottom surface of the washing chamber 120, and the like.

Or further, in the above embodiment, the outer end of the overflow prevention barrier 20 is located at the boundary of the moving area of the foam 30, or the outer end of the overflow prevention barrier 20 crosses the boundary of the moving area of the foam 30. In this embodiment, the outer end of the spill guard 20 should cross the boundary of the foam 30 movement area, preventing foam 30 from spilling out of the spill guard 20, preventing foam 30 from affecting the pump body assembly or causing water spills. It will be appreciated that the structure of the overflow prevention baffle 20 should cooperate with the structure of the bottom surface of the washing chamber 120. In addition, in order to improve the anti-overflow effect, the outer end of the anti-overflow baffle 20 may be inclined toward the foam 30, and the porous member 10 and the anti-overflow baffle 20 form an open space enclosing the foam 30, thereby reducing the escape of the foam 30.

In a preferred embodiment, the porous member 10 has a lattice structure, and the porous member 10 includes a first side facing the foam 30, and the first side includes a plurality of edges and/or sharp corners for defoaming. In this embodiment, the porous member 10 has a lattice structure having a first side and a second side, the first side is used for impacting the foam 30, so that a pointed structure is provided which is easier to puncture the foam 30, and the pointed structure may be specifically provided as an edge or a pointed angle.

In a preferred embodiment, the porous member 10 includes a support portion 11, and the support portion 11 is connected with the washing chamber 120. In this embodiment, the otter board passes through supporting part 11 and is connected with washing chamber 120, specifically, can set up linking structure or detachable construction, and detachable construction more does benefit to and provides the utility model discloses a maintain, improve the holistic life of dish washer 100.

Further, in the above embodiment, the supporting portion 11 is provided with the buckle, and the bottom wall and the side wall of the washing chamber 120 are provided with the locking groove; or, the supporting portion 11 is provided with a slot, and the bottom wall and the side wall of the washing chamber 120 are provided with a buckle. In this embodiment, the movable connection between the porous member 10 and the washing chamber 120 is realized by the engaging structure of the engaging member and the engaging groove, and the engaging groove and the engaging member do not limit the setting position. The structure of buckle and draw-in groove specifically can set up to boss and recess shape, can adopt the elasticity material, makes things convenient for the people hand to dismantle.

Furthermore, in the above embodiment, the plurality of slots or fasteners are sequentially spaced along the inner wall of the washing chamber 120. In this embodiment, the mounting position of draw-in groove or buckle as supporting part 11 sets up to a plurality ofly, can set up porous piece 10 in a plurality of positions as required, perhaps all sets up porous piece 10 in a plurality of positions to improve the defoaming effect as the purpose, do benefit to the flexibility that improves porous piece 10 and set up. Considering that there is a difference in the position where the amount of the foam 30 is the largest among different types or models of the dish washer 100, the position of the porous member 10 in this embodiment can be more suitably applied to each type of the dish washer 100.

In a second aspect, referring to fig. 1, the present invention provides a dishwasher 100, comprising a washing chamber 120, wherein the defoaming device of the dishwasher 100 with the above structure is arranged in the washing chamber 120. The utility model provides a dish washer 100 has above-mentioned fire fighting equipment's whole technological effect, and here is no longer repeated. The dishwasher 100 generally includes a door 110, and when the door 110 is opened, a washing chamber 120 is visible, and dishes are placed on an upper portion of the washing chamber 120. Placing detergent, closing the door body 110, opening the control switch, spraying the spray liquid to the bowls and dishes from bottom to top, collecting the spray liquid to the bottom of the washing cavity 120 under the gravity, and discharging the spray liquid after defoaming and filtering.

In a preferred embodiment, a sprayer 130 is included in the washing chamber 120, and the sprayer 130 includes a rotary shaft 131, a driving member (not shown), and two spray arms 132. The rotating shaft 131 penetrates through the bottom wall of the washing cavity 120 from bottom to top, the driving member is provided with an output end, the rotating shaft 131 is connected to the output end, and the two spraying arms 132 are communicated with the inner cavity of the rotating shaft 131 and are higher than the liquid level of the water body. In this embodiment, the driving piece can be set up to servo motor, and the output shaft through the motor drives the pivot and realizes rotating. The position of the sprayer 130 is limited in the embodiment, the sprayer 130 penetrates out from the bottom of the washing cavity 120, as the spraying liquid is collected to the bottom of the washing cavity 120, the rotation of the rotating shaft 131 can drive the water body to rotate, and the spraying liquid is sprayed along with the rotation, a circulating water body is formed at the bottom of the washing cavity 120, the foam 30 on the liquid surface can do plane motion along with the rotation of the circulating water body, when the foam 30 passes through the porous member 10, the foam 30 is broken under the filtration of the porous member 10, and as the sprayer 130 does circular motion repeatedly, part of the escaped foam 30 can be broken and eliminated when the next circulating water body rotates, and the process is repeated, so that the aim of reducing the foam quantity is achieved.

Further, in the above embodiment, the top of the porous member 10 is spaced from the bottom of the spray arm 132 by a distance in the range of 6-10 mm. In this embodiment, in order to prevent the porous member 10 from interfering with the rotation of the spray arm 132, the top of the porous member 10 is lower than the bottom of the spray arm 132, and a certain distance is provided, and to ensure the defoaming effect of the foam 30, the height of the porous member 10 is not too low, and the distance is set to 6-10 mm. If the dish washer 100 is a large dish washer 100 for commercial use, the distance may be further enlarged according to the washing intensity size, the water depth, etc., and adjusted according to the specific shape.

The technical scheme of the utility model, the washing bowl dish spray liquid upwards spray the bowl dish, then spray liquid and mix with the greasy dirt and assemble washing chamber 120 bottom under the action of gravity, when the spray liquid that assembles down produces more foam 30, foam 30 is along with the water syntropy flows, discharge washing chamber 120 outside dish washer 100 under predetermined motion route, the utility model discloses set up porous 10 in washing chamber 120 of dish washer 100 to locate foam 30 motion route with porous 10 on, so along with the flow of water, foam 30 and the porous 10 emergence of having the certain velocity of flow collide, and then foam 30 breaks out and disappears and reaches the defoaming purpose, simple structure, easy to maintain, occupation space is less moreover, does not need extra power to provide, has saved the whole energy consumption of washing greatly.

Compared with chemical methods using defoaming agents and the like, the defoaming device of the utility model is safer; the obstruction of the rotation of the sprinkler 130 by the foam 30 is reduced; the cavitation phenomenon generated by the foam 30 is also reduced, and the water pressure of the washing pump is prevented from being reduced; the foam 30 is prevented from carrying part of water to overflow upwards, so that the water level of the inner container rises, and the overflow fault of the dish washing machine 100 is avoided. To sum up, the utility model discloses it is very favourable to promoting dishwasher 100's washing effect, reinforcing security.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (13)

1. A defoaming apparatus for a dishwasher (100) comprising a porous member (10), said porous member (10) comprising a plurality of first defoaming holes, said porous member (10) being disposed in a washing chamber (120) of the dishwasher (100), said porous member (10) being located in a path of movement of foam (30), said foam (30) being filtered through said first defoaming holes and passing liquid.

2. The device according to claim 1, wherein the porous member (10) is a mesh plate protruding from the bottom wall of the washing chamber (120).

3. The apparatus according to claim 1, wherein the porous member (10) is a mesh plate vertically disposed on a bottom wall of the washing chamber (120).

4. The device according to claim 1, wherein the porous member (10) comprises a first end (101) and a second end (102), the first end (101) and/or the second end (102) being provided with a spill-proof baffle (20), the spill-proof baffle (20) comprising a plurality of second defoaming holes.

5. The apparatus of claim 4, wherein the second defoaming hole has a larger pore size than the first defoaming hole.

6. The device according to claim 4, characterized in that the outer end of the spill-proof baffle (20) is located at the boundary of the foam (30) movement area or the outer end of the spill-proof baffle (20) crosses the boundary of the foam (30) movement area.

7. The device according to claim 1, wherein the porous member (10) is of a lattice structure, the porous member (10) comprising a first side facing the foam (30) and comprising a plurality of edges and/or sharp corners for defoaming.

8. The device according to claim 1, characterized in that said perforated member (10) comprises a support (11), said support (11) being connected to said washing chamber (120).

9. The device according to claim 8, characterized in that said support (11) is provided with a snap, the bottom wall and the side walls of said washing chamber (120) being provided with a snap groove; or,

the supporting part (11) is provided with a clamping groove, and the bottom wall and the side wall of the washing cavity (120) are provided with buckles.

10. The device according to claim 9, wherein the plurality of slots or the plurality of fasteners are sequentially spaced along the inner wall of the washing chamber (120).

11. A dishwasher (100) comprising a washing chamber (120), the washing chamber (120) having a foam removal apparatus as claimed in any one of claims 1 to 10 disposed therein.

12. The dishwasher (100) of claim 11, wherein the washing chamber (120) comprises a sprayer (130) therein, the sprayer (130) comprising:

the rotating shaft (131) penetrates through the bottom wall of the washing cavity (120) from bottom to top;

the driving piece is provided with an output end, and the rotating shaft (131) is connected to the output end; and the number of the first and second groups,

and the two spraying arms (132) are respectively communicated with the inner cavity of the rotating shaft (131) and are higher than the liquid level of the water body.

13. The dishwasher (100) of claim 12, wherein the top of the porous piece (10) is spaced from the bottom of the spray arm (132), the spacing being in the range of 6-10 mm.

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