CN109394112B

CN109394112B - Cleaning machine

Info

Publication number: CN109394112B
Application number: CN201710713862.2A
Authority: CN
Inventors: 徐慧; 王吉; 茅忠群; 诸永定
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2017-08-18
Filing date: 2017-08-18
Publication date: 2024-01-16
Anticipated expiration: 2037-08-18
Also published as: CN109394112A

Abstract

The utility model relates to a cleaning machine, which comprises a box body and a spray arm which is arranged at the bottom of the box body and is fixed relative to the box body, wherein the wall surface of the spray arm is provided with spray holes communicated with a runner.

Description

Cleaning machine

Technical Field

The utility model relates to the field of household dish washers, in particular to a cleaning machine.

Background

With the increasing level of living of people, dish washers are increasingly entering home as household electrical appliances for kitchen use. The existing dish-washing machines on the market are generally divided into three types of a desk type dish-washing machine, a cabinet type dish-washing machine and a trough type dish-washing machine, wherein the desk type dish-washing machine is of an integral independent structure and is generally placed on a desk for use; the cabinet type dish washer is also an independent structure, but needs to be embedded into a kitchen cabinet for use; the tub dishwasher is combined with a tub and is generally installed in a kitchen cabinet.

The dish washing machine of the above-mentioned various forms generally has a washing function by lifting water by a water pump and spraying the water toward dishes in a washing space. For example, the chinese patent with application number CN97236119.7, i.e. a microcomputer light-operated full-automatic dish washer, and the chinese patent with application number CN00240098.7, i.e. a dish washer, all disclose similar structures, in which the impact force of water flow sprayed to the dishes is weak and not uniform enough, and when the number of dishes is large, the water flow cannot be covered, resulting in poor cleaning effect. The chinese patent CN200710306898.5, which relates to a dish washer, especially a household dish washer, with a device for improving decontamination effect, provides a vaporizing device for generating a fluid mist that can be introduced into a cavity of the dish washer, so as to enlarge a washing area of the dish washer and improve uniformity of a washing medium, but the structure still cannot solve the problem of weak impact force of sprayed water flow. For this reason, the applicant has made a series of improvements to the washing machine with dish washing function, such as ZL201310749864.9 "sink-type washing machine", ZL201310750968.1 "sink-type washing machine", which uses the rotary spray arm disposed at the bottom of the sink body as the water spraying means to connect with the water pump, the water pump sucks the water in the sink body and then sprays the water from the spray arm to wash the object to be washed, and chinese application (a sink-type washing machine) such as 201610110963.6 (publication No. CN105662300 a) discloses such a whole H-type, the split flow passage includes a lateral split flow passage in the middle and vertical split flow passages at both sides, respectively, which biases the water pump at the bottom of the sink body, such as one end of the length direction of the sink body, since the water pump is smaller to the other end of the sink body or near the fruit and vegetable in the length direction of the other end, and a device for collecting the residue is easy to be added at the other end; in a fruit and vegetable washer, in order to equalize the suction force of two ends of the spray arms to fruits and vegetables, chinese patent No. CN206239254U of the applicant's ZL201621100369.0 discloses such a fruit and vegetable washer comprising two water pumps and two spray arms, wherein the flow dividing passage extends from the first end to the second end of the spray arm, the second end of one spray arm faces the first end of the other spray arm, and the direction of the nozzle of one spray arm is opposite to the direction of the nozzle of the other spray arm, so that the water streams sprayed from the two spray arms are formed into an annular rotary water stream. The two spray arms are arranged, and the direction of the spray nozzle is arranged, so that water flow sprayed by the spray holes can form annular rotary water flow, the spray arms at the two ends apply the same acting force to fruits and vegetables, so that the fruits and vegetables can rotate in a certain direction in the vegetable basket, the fruits and vegetables are in a moving state relative to the water tank body and the water flow, and the water flow can wash each surface of fruits and vegetables to be cleaned, and meanwhile, the ultrasonic generating devices are arranged at the two sides of the spray arms, so that a better cleaning effect is obtained; however, two spray arms of two water pumps are required, and therefore, further improvement is required, and meanwhile, only a single rotary spray arm is adopted to clean objects (dishes or fruits and vegetables) to be cleaned, so that dead angles always exist and cannot be washed by water flow sprayed from the rotary spray arm.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a cleaning machine capable of enhancing cleaning effect aiming at the prior art.

The utility model solves the technical problems by adopting the technical scheme that the cleaning machine comprises a box body and a cleaning mechanism arranged in the box body, wherein the cleaning mechanism at least comprises a spray arm which is arranged at the bottom of the box body and is fixed relative to the box body, the spray arm is hollow and is provided with a flow channel, a water inlet communicated with the flow channel is formed in the central part of the bottom of the spray arm, a spray hole communicated with the flow channel is formed in the wall surface of the spray arm, and the cleaning machine is characterized in that a gas channel independent of the flow channel is arranged on the wall surface of the spray arm, at least one gas inlet and at least three gas spray holes are formed in the gas channel, the gas inlet is connected with an external gas supply device through a gas inlet pipe, and at least one gas spray hole is arranged adjacent to the corresponding spray hole.

Further, the gas passages are arranged in the area formed by surrounding the spraying holes. When water sprayed from the spraying holes at the periphery of the gas channel is in the box body, and the water level is high (the water level is over the spraying arm), air is pumped into the gas channel, so that a large number of bubbles are formed in the water rapidly by spraying air from the spraying holes of the gas channel.

Further, at least three corresponding gas injection holes are arranged around each spray hole, and the outlet of each gas injection hole faces the spray hole. Because the jet holes surround the vicinity of the spray holes, the blown air is sprayed along with the sprayed water flow, and the water mixed with a large amount of bubbles is sprayed onto the cleaning object from the spray holes on the spray arm, so that the instant air explosion phenomenon can be generated by cracking to form radioactive impact force, the area and probability of directly flushing the cleaning object are increased, the cleaning speed is further increased, the existence of spray dead angles of the spray arm is effectively avoided, the cleaning rate of the spray arm is improved, the cleaning effect is effectively enhanced, and when the cleaning is finished (the water level in a water tank is lower or no water), the air blown into the spray arm is discharged along with the spray holes of the spray arm, and the vegetable basket above and the cleaning object after the cleaning are directly blown, so that the wet cleaning object is quickly drained.

Further, at least two of the flow passages are annular flow passages which are O-shaped and are respectively positioned at two sides of the water inlet. The cross section area of the O-shaped annular flow passage is large, so that the water flow spray pressure at two ends of the spray arm can be balanced under the conditions of reducing the number of water pumps and not increasing the power of the water pumps, and the turbulence intensity is kept not weakened, so that the cleaning effect is improved.

In order to reduce the loss of kinetic energy of water by the opposite impact of the downstream distal end of the O-shaped annular flow passage, the downstream distal end of the annular flow passage is blocked by at least one blocking wall along the water flow direction.

Further, the cross-sectional area of the annular flow passage gradually decreases from upstream to downstream in the water flow direction. The sectional area of the annular flow channel is gradually reduced from the upstream to the downstream, so that the flow velocity of the water flow is large at the downstream with small sectional area, and the flow velocity of the water flow is small at the upstream with large sectional area; the water sprayed out from the spray holes of the sample spray arm can be pressed from the high pressure upstream to the low pressure downstream, so that the object to be cleaned can be lifted upwards by the water pressure sprayed out from the spray holes at the low pressure downstream of the spray arm, the object to be cleaned is in a moving state, and therefore, water flows can wash each surface of the object to be cleaned, the object to be cleaned can be cleaned without dead angles, a good cleaning effect is achieved, and therefore, the problems that the object to be cleaned is effectively avoided, and the position close to the dead angles at two sides of the tank body of a cleaning tank is easy to be cleaned due to insufficient water flow washing force can be effectively avoided.

Further, the annular flow passage has at least three spray holes on each side of the barrier wall separation, and the distance between a spray hole adjacent to the barrier wall and the barrier wall is smaller than the distance between other adjacent spray holes. The distance between the spraying holes adjacent to the baffle wall and the baffle wall is small, so that water flow which can turn back from the baffle wall can be sprayed out of the spraying holes rapidly, so that the object to be cleaned is lifted upwards, and the deposition of the object to be cleaned is avoided. Preferably, the opening directions of other adjacent spray holes are all oriented in the same rotation direction, so that the water flow sprayed from the annular flow channel forms annular water flow. After the device is arranged, water flow sprayed out of other spraying holes can form annular rotary water flow, acting force is applied to the object to be cleaned, the object to be cleaned can rotate in a certain direction, the object to be cleaned is in a motion state, and therefore the water flow can wash each surface of the object to be cleaned, the object to be cleaned is clean without dead angles, and a good cleaning effect is achieved.

Further, a central hole is formed in the inner ring wall of the O-shaped annular flow passage, and an ultrasonic generating device is arranged below the central hole. The bottom of box can be provided with ultrasonic wave generating device, and ultrasonic wave generating device is located this centre bore below, and ultrasonic wave generating device can send comparatively even ultrasonic wave, further obtains better cleaning performance.

The bottom of the box body is provided with a heating component.

Compared with the prior art, the utility model has the advantages that the wall surface of the spray arm is provided with the gas channel which is independent of the flow channel, the gas channel is ventilated by arranging the gas supply device outside the cleaning machine, the air sprayed from the gas channel air spraying hole is converged with the water sprayed from the spray hole of the spray arm, the water mixed with a large amount of bubbles is sprayed from the spray hole on the spray arm again through continuous circulation, the sprayed bubbles expand to tear the sprayed water into fragments mist water drops, the mist water drops are sprayed to the object to be cleaned, the mist water drops can be broken to generate instant air explosion to form radioactive impact force, the area and probability of directly cleaning the object are increased, the cleaning speed is further increased, the existence of spray dead angles of the spray arm is effectively avoided, the cleaning rate of the spray arm is improved, and the cleaning effect is effectively enhanced.

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 FIG. 1;

fig. 3 is a cross-sectional view of a spray arm 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.

Referring to fig. 1 to 3, the washer of the present utility model is designed to be particularly suitable for a sink type washer having an elongated sink, particularly for washing fruits and vegetables, but may be applied to a general sink type washer, as well as a front-opening European type washer and a drawer type washer, in fact.

The following description will be made by taking a fruit and vegetable cleaning machine as an example:

the fruit and vegetable cleaning machine comprises a box body 10, namely a water tank body, a water pump 20 and a spray arm, wherein the water pump 20 is arranged at the bottom of the water tank body, the spray arm is used as a water outlet component of the water pump, and water pumped by the water pump 20 is sprayed out to clean fruits and vegetables and the like to be cleaned in the water tank body. In the present utility model, it is preferable that the tub body is formed in a long and narrow shape, thereby not only being better adapted to the space of the user's kitchen (to be matched with other tub), but also saving water with respect to a square tub.

The water pump 20 is disposed at the middle position of the bottom of the water tank body, the water pump comprises a motor and an impeller, the impeller comprises a hollow shaft with the tail end connected with the output shaft of the motor and a plurality of blades which are uniformly distributed on the peripheral surface of the shaft and extend along the axial direction, wherein the motor is located below the bottom of the water tank body, and the impeller is located in the bottom of the water tank body. A filter screen is arranged between the lower part of the spray arm and the water pump to isolate dirt from entering the water pump and prevent the spray arm from being blocked.

The ultrasonic wave generating device 30 is arranged on the two sides of the water pump of the water tank body, the drainer, the heating component and the drain valve are also arranged on the bottom of the water tank body, and dirty water after cleaning can be discharged through the drainer and the drain valve. The water tank body is internally provided with a cleaning basket for placing dishes to be cleaned, the upper end edge of the cleaning basket is placed on the inner side wall of the upper end of the water tank body, and the bottom of the cleaning basket is positioned above the spray arm, the ultrasonic generating device 30 and the drainer.

In order to only adopt one water pump 20 in the middle of a long and narrow water tank body, and still balance the water flow spray pressure at two ends of a spray arm under the condition of not increasing the power of the water pump 20 and keep the turbulence intensity not weakened, the spray arm 1 is hollow and is provided with a flow channel 2, the central part of the bottom of the spray arm 1 is provided with a water inlet communicated with the flow channel 2, the wall surface of the spray arm 1 is provided with a spray hole 4 communicated with the flow channel 2, the wall surface of the spray arm 1 is provided with a gas channel 5 independent of the flow channel 2, the gas channel 5 is provided with at least one air inlet 51 and at least three air spray holes 52, the air inlet 51 is connected with an external gas supply device 6 through an air inlet pipe, and at least one air spray hole 52 is arranged adjacent to the corresponding spray hole 4. In order to quickly mix the air blown out from the air channel 5 with the spray arm water jet to form water with a large number of bubbles (the flowing direction of the air is shown by a solid arrow in fig. 2), preferably, the air channel 5 is arranged in an inner area surrounded by the spray holes 4, the water sprayed out from the spray holes 4 positioned at the periphery of the air channel 5 is fed into the tank 10 (the flowing direction of the water body is shown by a broken line arrow in fig. 2), when the air channel 5 is cleaned at a high water level (the water level is not over the spray arm), air is blown out from the air holes 52 of the air channel 5 to quickly form a large number of bubbles in the water, and because the air holes 52 are all arranged near the spray holes 4, the blown out air is sprayed onto the cleaning object along with the sprayed water flow, the water mixed with a large number of bubbles can be broken to generate a momentary idle explosion phenomenon so as to form a radioactive impact force, the area and the probability of directly flushing the cleaning object are increased, the cleaning speed is further increased, the dead angle of spray arm spraying is effectively avoided, the cleaning of the arm is improved, and when the cleaning effect of the water is finished (the water level is drained from the spray arm 1 or the cleaning basket is drained directly after the cleaning object is drained from the water tank 1). Preferably, at least three corresponding gas orifices 52 are disposed around each spray orifice 4, and the outlet of each gas orifice 52 is directed toward that spray orifice 4. The air supply device 6 is arranged outside the cleaning machine to ventilate the air channel 5, the air sprayed from the air spraying holes 52 of the air channel 5 is converged with the water sprayed from the spraying holes 4 of the spray arm, the water mixed with a large amount of bubbles is sprayed from the spraying holes 4 on the spray arm 1 again through continuous circulation, the sprayed bubbles expand to tear the sprayed water into fragments mist water droplets, the mist water droplets are flushed to the object to be cleaned, the mist water droplets can be broken to generate instant air burst so as to form radioactive impact force, the area and probability of directly flushing the object to be cleaned are increased, the cleaning speed is further increased, the existence of spraying dead angles of the spray arm 1 is effectively avoided, the cleaning rate of the spray arm 1 is improved, and the cleaning effect is effectively enhanced.

In addition, two flow passages 2 of the spray arm 1 are respectively located at two sides of the water inlet, in this embodiment, the periphery of the spray arm 1 is provided with a convex wall 11 to surround and form a flow passage, the flow passage 2 is an O-shaped annular flow passage 7, and for convenience of description, the left flow passage 2 is taken as an example in the following description because the structures of the two flow passages 2 are similar and have a center symmetry pattern.

The spray arm 1 can be integrally injection molded, and can be arranged into two parts which are connected in an upper-lower split manner for reducing the adding difficulty. The spray arm 1 comprises an upper spray arm 12 and a lower spray arm 13, a water inlet is formed in the middle of the lower spray arm 13, and spray holes 4 are formed in the top surface of the upper spray arm 12. In addition, in order to enhance the cleaning effect, the two sides of the water pump 20 of the water tank body are provided with ultrasonic generating devices 30, correspondingly, in a central hole 9 formed by the inner annular wall of the O-shaped annular flow passage 7 of the spray arm arranged on the ultrasonic generating devices 30, one end of the spray arm 1 inwards extends to form a baffle wall 8 propped against the outer wall of the central hole 9, the tail end of the O-shaped annular flow passage 7 is separated by the baffle wall 8 to prevent water flow intersection and impact water outlet pressure, the hole wall of the central hole 9 upwards extends to form an inner annular convex wall 91, a first side surface of the inner annular convex wall 91, the inner side surface of the convex wall 11, the baffle wall 8 and the inner side surface of the inner annular convex wall form a second sub flow passage 22, the spray hole 4 comprises a first spray hole corresponding to the first sub flow passage 21 and a second spray hole corresponding to the second sub flow passage 22, the number of the first spray holes and the second spray holes is 3 respectively, if the number is too large, the phenomenon of weakening of the spray pressure of the water flow is easy to cause, turbulence and weak spray effect are caused, if the number is too small, the spray cleaning range is easy to cause, 3 are used for unfolding and describing, namely, a spray hole I100, a spray hole II 20 and a spray hole III 30, a spray hole III 50, a spray hole III 60 and a spray hole III 70, wherein the distance between the spray hole III 30 and the spray hole III 70 and the baffle wall 8 is smaller than the distance between other adjacent spray holes 4, and the spray holes are inclined upwards at a certain angle with the horizontal direction, preferably 30-60 degrees, the angle of the spray hole IV and the spray hole V is arranged to enable the water flow turned back from the baffle wall 8 to be sprayed out from the tangential direction of the spray holes adjacent to the baffle wall 8, and when the water level is higher, the other adjacent spray holes 4, the spray holes I100, the spray hole II 20 and the spray hole V50, the water mixed with bubbles sprayed from the spray holes 60 in the same rotation direction can form turbulence, the turbulence mixed with bubbles can wash the dishes to be washed and the air explosion force formed by the washing can also be increased, so that the impact force and friction force in the unit volume are greatly increased, even under the condition of not using any surfactant or detergent, the good washing effect is achieved, and the more omnibearing washing is realized. In addition, the O-shaped annular flow passage 7 gradually reduces the sectional area of the annular flow passage 7 from upstream to downstream along the water flow direction. The sectional area of the annular flow channel 7 gradually decreases from the upstream to the downstream, so that the flow velocity of the water flow is large at the downstream with small sectional area, and the flow velocity of the water flow is small at the upstream with large sectional area, and the higher the flow velocity of the fluid, the smaller the pressure, the higher the flow velocity of the fluid and the pressure are according to the Bernoulli principle; therefore, the water sprayed out from the spray holes 4 of the spray arm 1 can be pressed from the high pressure upstream to the low pressure downstream, so that the water sprayed out from the spray holes 4 at the downstream of the spray arm 1 can be flushed out to each surface of the dishes to be cleaned, the dishes to be cleaned can be cleaned without dead angles, a better cleaning effect is achieved, and the problems that the dishes to be cleaned are effectively avoided, and the positions close to the dead angles at two sides of the water tank body are easy to be cleaned due to insufficient water flow flushing force can be effectively avoided.

According to the fruit and vegetable cleaning machine, the spray arm structure is adopted, fruits and vegetables to be cleaned are placed into the cleaning basket of the water tank body during cleaning, the gas supply device 6 such as the gas pump on the side wall of the box body 10 is opened, when the gas pump is opened, air is sprayed out of the air spraying holes 52 of the gas channel 5 to enable water in the water tank body to turn over or rotate and be combined with water sprayed out of the spray holes 4 of the spray arm, water mixed with a large number of bubbles is sprayed out of the spray holes 4 of the spray arm again through continuous circulation, the sprayed bubbles expand to tear the sprayed water into fragments of mist water beads, the mist water beads are flushed towards the fruits and vegetables to be cleaned, an instantaneous idle explosion phenomenon is generated to form a radioactive impact force, the area and probability of directly flushing the cleaned objects are increased, three-dimensional flushing airflow, water flow and driving the fruits and vegetables in the water tank body to turn over or rotate, under friction or impact of the water flow and the surfaces of the fruits and vegetables are combined with the ultrasonic wave generating device, the ultrasonic wave generating device is carried out with compression force and the fruits and vegetables mixed with a large number of bubbles or the water bubbles, the sprayed bubbles are sprayed out in the spray arm to the water tank body at a small speed more than ten thousands times per second, the cleaning effect is improved, the dirt is improved, the cleaning effect is improved, and the dirt has improved, and the cleaning effect is improved.

Although the utility model is derived from a sink-type washer, the design of the utility model is equally applicable to non-sink-type washers, such as front-opening European washers, drawer washers, and the like.

Claims

1. The cleaning machine comprises a box body (10) and a cleaning mechanism arranged in the box body (10), wherein the cleaning mechanism at least comprises a spray arm (1) which is arranged at the bottom of the box body and is fixed relative to the box body, the spray arm (1) is hollow and is provided with a flow channel (2), the central part of the bottom of the spray arm (1) is provided with a water inlet communicated with the flow channel (2), the wall surface of the spray arm (1) is provided with a spray hole (4) communicated with the flow channel (2), and the cleaning machine is characterized in that the wall surface of the spray arm (1) is provided with a gas channel (5) which is independent relative to the flow channel (2), the gas channel (5) is provided with at least one air inlet (51) and at least three air spray holes (52), the air inlet (51) is connected with an external gas supply device (6) through an air inlet pipe, and the air spray holes (52) are at least provided with one adjacent corresponding holes (4); the bottom of the box body (10) is provided with a heating component.

2. A cleaning machine according to claim 1, characterized in that the gas channels (5) are arranged in the area enclosed by the respective spray holes (4).

3. A cleaning machine according to claim 1 or 2, characterized in that at least three corresponding gas injection holes (52) are provided around each of the spray holes (4), and that the outlet of each gas injection hole (52) is directed towards the spray hole (4).

4. The cleaning machine according to claim 1, characterized in that at least two of said flow channels (2) are annular flow channels (7) each of O-shape, respectively on both sides of said water inlet.

5. The cleaning machine of claim 4, wherein: along the water flow direction, the annular flow channel (7) is blocked at the downstream distal end by at least one blocking wall (8).

6. The cleaning machine of claim 5, wherein: the cross-sectional area of the annular flow passage (7) gradually decreases from upstream to downstream along the water flow direction.

7. The cleaning machine of claim 5 or 6, wherein: the annular flow passage (7) is provided with at least three spraying holes (4) on each side separated by the baffle wall (8), and the distance between the spraying holes (4) adjacent to the baffle wall (8) and the baffle wall (8) is smaller than the distance between other adjacent spraying holes (4).

8. The cleaning machine of claim 4 or 5 or 6, wherein: the inner ring wall of the O-shaped annular flow passage (7) forms a central hole (9), and an ultrasonic generating device (30) is arranged below the central hole (9).