CN220494974U

CN220494974U - Cleaning machine

Info

Publication number: CN220494974U
Application number: CN202321715395.4U
Authority: CN
Inventors: 施郑赞
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2024-02-20
Anticipated expiration: 2033-06-30

Abstract

The utility model relates to a cleaning machine, which comprises a box body, a water pump and a motor, wherein a concave water return area is arranged at the bottom of the box body, the water pump is arranged in the water return area and is used for pumping water in the water return area to the water return area, the motor is arranged outside the bottom of the box body, an output shaft penetrates through the bottom wall of the box body and is connected with the water pump, a nut sleeve which is arranged around the output shaft of the motor and is used for locking the motor and the bottom of the box body is arranged on the inner bottom wall of the box body, the nut sleeve is communicated with an inner cavity of the motor, a draining hole for washing water to enter the inner cavity of the motor is formed in the nut sleeve, and a water guide port for discharging the washing water is formed in the bottom of the inner cavity of the motor. Under the washing state, the washing water can enter the motor cavity through the draining hole to dissipate heat of the motor, after washing is finished, the washing water in the motor cavity is drained away, long-term maintenance of the motor is not affected, the washing water surrounds the motor cavity in a large area, the heat dissipation effect of the motor can be effectively improved, and therefore the heating condition of the motor meets the safe use standard.

Description

Cleaning machine

Technical Field

The utility model relates to the technical field of dish washing machines, in particular to a washing machine for washing tableware, fruits and vegetables.

Background

For a dishwasher with a large volume, at least two groups of spray arms arranged up and down are generally arranged for achieving a better washing effect. When the dishwasher works, the washing pump respectively conveys the water to each spray arm for up-and-down spraying, the water falling back after washing tableware is gathered in the water cup at the bottom of the dishwasher, and the washing pump conveys the water falling back to each spray arm again to complete one water flow cycle.

The prior application CN202211216094.7 discloses a structure, wherein a guide vane capable of splitting water is arranged in a pump shell of a water pump, one path of split water is output through a first water outlet at the top of the pump shell, the other path of split water is output through a second water outlet at the side part of the pump shell, the guide vane does not move, the interference problem of two paths of water is eliminated under the split action of the guide vane, the energy loss of water flow is reduced, and the two paths of water can keep higher lift and larger water flow; and the whole water flow system can be operated by only one centrifugal impeller, so that the whole water flow system has a simple structure and reduces the production cost.

The structure can effectively improve the water efficiency and the cleanliness, but because the motor and the heating piece are arranged at the bottom of the box body, particularly when the heating piece is adjacently arranged with the motor, the temperature of the motor is easy to rise excessively and exceeds the safe use standard.

Disclosure of Invention

Aiming at the current state of the art, the utility model provides the cleaning machine which can effectively dissipate heat of the motor through the washing water so as to enable the temperature rising condition of the motor to meet the safe use standard.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a cleaning machine, includes box, water pump and motor, the bottom of the case portion is provided with the backwater region of indent, the water pump is located in this backwater region and is used for the water pump in the backwater region to the backwater region on, the motor is located outside the bottom of box and the output shaft passes the box diapire and is connected with the water pump, the interior bottom wall of box is provided with around the motor output shaft arrangement and is used for the nut cover with motor and bottom of the case locking, this nut cover with the inner chamber of motor is linked together, it has the waterlogging caused by excessive rainfall hole that supplies washing water to get into motor inner chamber to open on the nut cover, the water guide that supplies washing water exhaust is seted up to motor inner chamber's bottom.

Preferably, a water outlet is formed in the bottom of the water return area, and a valve pump assembly connected with the water outlet is arranged at the bottom outside the box body and used for sealing the water outlet in a washing state, opening the water outlet in a draining state and providing drainage power. The valve pump assembly is convenient to seal the water outlet in a washing state, and the open water pump is used for forming water circulation, so that the washing water is quickly discharged in a draining state.

Preferably, the valve pump assembly is provided with a drain chamber communicating with a lower end of the drain port, a side portion of the drain chamber is provided with a drain valve for closing or opening a drain path, and a bottom portion of the drain chamber is provided with a drain impeller for providing drainage power.

Preferably, a water guide port at the bottom of the motor is communicated with the water discharge cavity through a water guide pipe, and the communicated position is positioned at the upstream of the water discharge valve. The water outlet end of the motor inner cavity is connected with the water outlet end, so that water in the motor inner cavity can participate in circulation in a washing state, the heat dissipation effect on the motor is improved, and accumulated water in the inner cavity can be rapidly drained in a drainage state.

Preferably, the bottom of the water return area is provided with a water absorption buffer cavity with an open bottom, the water pump is positioned above the water absorption buffer cavity, the bottom of the water pump is provided with a water absorption port communicated with the water absorption buffer cavity, the bottom opening of the water absorption buffer cavity is covered with a heating element, the motor is arranged below the heating element, the output shaft penetrates through the heating element and the water absorption buffer cavity to be connected with the water pump, and the nut sleeve penetrates through the heating element to surround the output shaft. By the arrangement of the structure, backwater flow entering the water pump can be buffered, so that the water flow output is more stable; the bottom wall of the water absorption buffer cavity is formed by the heating piece, so that the volume of the water return area is not additionally occupied, the volume of the water return area can be reduced, the water return is buffered and is directly heated, and the heating efficiency is improved.

Preferably, the central part of the heating element is provided with a shaft hole, the nut sleeve comprises a sleeve body vertically penetrating through the shaft hole and a supporting edge horizontally extending from the top of the sleeve body, the sleeve body penetrates through the shaft hole to be in locking connection with an internal part of the motor, the supporting edge is lapped on the upper surface of the heating element, and a plurality of draining holes are distributed on the supporting edge at intervals close to the periphery of the output shaft. The structure provides convenience for the assembly of the motor and the heating piece, the draining holes are distributed close to the motor shaft, the motor shaft can be utilized to form a diversion effect on washing water, and meanwhile, the motor shaft is cooled.

Preferably, a connecting sleeve connected with the lower end of the nut sleeve is arranged at the top of the motor, an output shaft of the motor passes through the connecting sleeve and the nut sleeve, a bearing for supporting the output shaft is arranged in the connecting sleeve, and a diversion trench for allowing washing water to pass through and enter the inner cavity of the motor downwards is arranged on the bearing. The structure is convenient for guiding the washing water into the inner cavity of the motor.

Preferably, a pump cavity of the water pump is integrally formed on the water absorption buffer cavity, a water absorption port corresponding to the arrangement of the heating element is formed in the bottom of the pump cavity, a water outlet is formed in the top of the pump cavity, and a spray arm which is positioned on the water return area and is communicated with the water outlet is arranged in the box body. The structure can shorten the stroke between the pump cavity and the water absorption buffer cavity and improve the water return efficiency.

Preferably, the heating element is a thick film type heating plate, and the bottom of the box body is provided with a sealing gasket for sealing and connecting the thick film type heating plate at the bottom opening of the water absorption buffer cavity. By adopting the structure, the assembly is convenient, and the heating efficiency is improved.

Preferably, a fan for accelerating heat dissipation of the motor is arranged at the bottom of the motor, a driving motor for driving the motor to rotate is arranged below the fan, and the driving motor and the fan are both restrained at the bottom of the motor through a bracket. The structure is an optional structure, when the motor is cooled by adopting washing water, the structure can be arranged simultaneously when the motor efficiency requirement is better, and the cooling effect is enhanced.

Compared with the prior art, the utility model has the advantages that: according to the utility model, the motor for providing power for the water supply pump is restrained at the bottom of the box body through the nut sleeve, meanwhile, the draining hole for the washing water to enter the motor inner cavity is formed in the nut sleeve, in a washing state, the washing water can enter the motor inner cavity through the draining hole to dissipate heat of the motor, after washing, the washing water in the motor inner cavity is drained away, long-term maintenance of the motor is not affected, the washing water surrounds the motor inner cavity in a large area, and the heat dissipation effect of the motor can be effectively improved, so that the heating condition of the motor meets the safe use standard.

Drawings

Fig. 1 is a schematic structural diagram of embodiments 1 and 2 of the present utility model;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a schematic structural view of a nut housing according to an embodiment of the present utility model.

Detailed Description

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

Example 1:

as shown in fig. 1 to 4, the cleaning machine of the embodiment includes a tank 1, a water pump 2 and a motor 4, a concave water return area 11 is provided at the bottom of the tank 1, a filter plate 12 is covered at the top of the water return area 11, the water pump 2 is disposed in the water return area 11 and is used for pumping water in the water return area 11 to the water return area 11 and above the filter plate 12, the motor 4 is disposed outside the bottom of the tank 1, and an output shaft 41 passes through the bottom wall of the tank 1 and is connected with the water pump 2.

The inner bottom wall of the box body 1 is provided with a nut sleeve 5 which is arranged around the motor output shaft 41 and is used for locking the motor 4 and the bottom of the box body 1, the nut sleeve 5 is communicated with an inner cavity 42 of the motor 4, a draining hole 51 for washing water to enter the inner cavity 42 of the motor is formed in the nut sleeve 5, and a water guide port 43 for discharging the washing water is formed in the bottom of the inner cavity 42 of the motor 4.

In this embodiment, the bottom of the water return area 11 is provided with a water outlet 13, and the outer bottom of the case 1 is provided with a valve pump assembly 6 connected to the water outlet 13, and the valve pump assembly 6 is used for closing the water outlet 13 in a washing state, opening the water outlet 13 in a draining state, and providing drainage power. The valve pump assembly 6 is provided to facilitate the closing of the drain port 13 in a washing state and the formation of water circulation by the open water pump, and to rapidly drain the washing water in a draining state. The valve pump assembly 6 is provided with a drain chamber 61 communicating with the lower end of the drain port 13, a drain valve 62 for closing or opening a drain path is provided at a side portion of the drain chamber 61, and a drain impeller 63 for providing a drain power and a driving motor for providing a rotational driving force to the drain impeller 63 are provided at a bottom portion of the drain chamber 61.

A water guide port 43 at the bottom of the motor 4 is communicated with the water discharge cavity 41 through a water guide pipe 44 and is positioned upstream of the water discharge valve 42. The water outlet end of the inner cavity 42 of the motor 4 is connected with the water outlet end, so that water in the inner cavity 42 of the motor 4 can participate in circulation in a washing state, the heat dissipation effect on the motor 4 is improved, and accumulated water in the inner cavity 42 can be rapidly drained in a drainage state.

The bottom of the water return area 11 is provided with a water absorption buffer cavity 112 which is arched upwards and provided with a bottom opening 111, the water pump 2 is positioned above the water absorption buffer cavity 112, the bottom of the water pump 2 is provided with a water absorption port 21 communicated with the water absorption buffer cavity 112, the bottom opening 111 of the water absorption buffer cavity 112 is covered with a heating piece 3, the motor 4 is arranged below the heating piece 3, and the output shaft 41 passes through the heating piece 3 and the water absorption buffer cavity 112 to be connected with the water pump 2. The nut sleeve 5 passes through the heating element 3 to enclose the output shaft 41 therein. By the arrangement of the structure, backwater water flow entering the water pump 2 can be buffered, so that the water flow output is more stable; the bottom wall of the water absorption buffer cavity 112 is formed by the heating piece 3, so that the volume of the backwater area 11 is not additionally occupied, the volume of the backwater area 11 can be reduced, backwater is directly heated while being buffered, and the heating efficiency is improved.

The heating element 3 in this embodiment is a thick film type heating plate, and the bottom of the box 1 is provided with a sealing pad 7 for sealing and connecting the thick film type heating plate to the bottom opening 111 of the water absorbing buffer cavity 112. By adopting the structure, the assembly is convenient, and the heating efficiency is improved.

The central part of the heating element 3 is provided with a shaft hole 31, the nut sleeve 5 comprises a sleeve body 501 vertically penetrating through the shaft hole 31 and a supporting edge 502 horizontally extending from the top of the sleeve body 501, the sleeve body 501 penetrates through the shaft hole 31 and is in locking connection with an inner element of the motor 4, the supporting edge 502 is lapped on the upper surface of the heating element 3, and a plurality of draining holes 51 are distributed on the supporting edge 502 at intervals close to the periphery of the output shaft 41. The structure provides convenience for assembling the motor 4 and the heating element 2, the draining holes 51 are distributed close to the motor shaft, the motor shaft can be utilized to form a diversion effect on washing water, and meanwhile, the motor shaft is cooled.

The top of the motor 4 is provided with a connecting sleeve 45 connected with the lower end of the nut sleeve 5, an output shaft 41 of the motor 4 passes through the connecting sleeve 45 and the nut sleeve 5, a bearing 46 for supporting the output shaft 41 is arranged in the connecting sleeve 45, and a diversion trench 461 for the washing water to pass through and downwards enter the inner cavity 42 of the motor 4 is arranged on the bearing 46. This configuration facilitates the further introduction of wash water into the motor cavity 42.

The pump cavity of the water pump 2 is integrally formed above the water absorption buffer cavity 112, the bottom of the pump cavity is provided with a water absorption port 21 which is arranged corresponding to the heating element 3, the top of the pump cavity is provided with a water outlet 22, and the box body 1 is internally provided with a spray arm 8 which is positioned above the water return area 11 and is communicated with the water outlet 22. The structure can shorten the stroke between the pump cavity and the water absorption buffer cavity and improve the water return efficiency.

The water pump in this embodiment is an open water pump, and the specific structure and operation principle are the same as those of CN202211216094.7, and will not be described here.

In this embodiment, the motor 4 for supplying power to the water supply pump 2 is restrained at the bottom of the box 1 through the nut sleeve 5, meanwhile, the draining hole 51 for the washing water to enter the motor inner cavity 42 is formed in the nut sleeve 4, under the washing state, the washing water can enter the motor inner cavity 42 through the draining hole 51 to dissipate heat of the motor 4, the draining hole 51 can supply water to pass through without allowing residues to pass through, after washing, the washing water in the motor inner cavity 42 is drained, long-term maintenance of the motor 4 is not affected, the washing water surrounds the motor inner cavity 42 in a large area, and therefore the heat dissipation effect of the motor 4 can be effectively improved, and the heating condition of the motor 4 can meet the safe use standard.

Example 2:

this embodiment differs from embodiment 1 in that: in this embodiment, a fan 9 for accelerating heat dissipation of the motor 4 may be disposed at the bottom of the motor 4, a driving motor 91 for driving the motor 4 to rotate is disposed below the fan 9, and the driving motor 91 and the fan 9 are both constrained at the bottom of the motor 4 by a bracket 92. The structure is an optional structure, when the motor is cooled by adopting washing water, the structure can be arranged simultaneously when the motor efficiency requirement is better, and the cooling effect is enhanced.

In the description and claims of the present utility model, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "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. The utility model provides a cleaning machine, includes box (1), water pump (2) and motor (4), box (1) bottom is provided with return water region (11) of indent, water pump (2) are located in this return water region (11) and are arranged in with water pump (2) in return water region (11) to return water region (11) on, motor (4) are located outside the bottom of box (1) and output shaft (41) pass box (1) diapire and are connected with water pump (2), its characterized in that: the inner bottom wall of the box body (1) is provided with a nut sleeve (5) which is arranged around an output shaft (41) of the motor (4) and is used for locking the motor (4) with the bottom of the box body (1), the nut sleeve (5) is communicated with an inner cavity (42) of the motor (4), a draining hole (51) for washing water to enter the inner cavity (42) of the motor (4) is formed in the nut sleeve (5), and a water guide port (43) for discharging washing water is formed in the bottom of the inner cavity (42) of the motor (4).

2. The cleaning machine of claim 1, wherein: the bottom of the backwater area (11) is provided with a water outlet (13), the outer bottom of the box body (1) is provided with a valve pump assembly (6) connected with the water outlet (13), and the valve pump assembly (6) is used for closing the water outlet (13) in a washing state, opening the water outlet (13) in a draining state and providing drainage power.

3. The cleaning machine of claim 2, wherein: the valve pump assembly (6) is provided with a drainage cavity (61) communicated with the lower end of the drainage outlet (13), a drainage valve (62) for closing or opening a drainage path is arranged on the side part of the drainage cavity (61), and a drainage impeller (63) for providing drainage power is arranged at the bottom of the drainage cavity (61).

4. A cleaning machine as claimed in claim 3, wherein: a water guide port (43) at the bottom of the motor (4) is communicated with the water discharge cavity (61) through a water guide pipe (44), and the communicated position is positioned at the upstream of the water discharge valve (62).

5. The cleaning machine according to any one of claims 1 to 4, wherein: the bottom of return water region (11) takes shape has upwards arches and has the water absorption buffer chamber (112) of bottom uncovered (111), water pump (2) are located this water absorption buffer chamber (112) and water pump (2) bottom is provided with water sucking mouth (21) that are linked together with water absorption buffer chamber (112), the bottom uncovered (111) department of water absorption buffer chamber (112) covers has heating piece (3), motor (4) are installed under heating piece (3) and output shaft (41) pass heating piece (3), water absorption buffer chamber (112) and are connected with water pump (2), nut cover (5) pass heating piece (3) and with output shaft (41) encirclement wherein.

6. The cleaning machine of claim 5, wherein: the central part of heating piece (3) has seted up shaft hole (31), nut cover (5) are including the cover body (501) of vertical shaft hole (31) that passes and hold in the palm limit (502) that extend from this cover body (501) top level, cover body (501) pass shaft hole (31) and with the internals locking connection of motor (4), hold in the palm limit (502) and take and lean on the upper surface of heating piece (3), waterlogging caused by excessive rainfall hole (51) be a plurality of and be close to output shaft (41) peripheral interval arrangement on holding in the palm limit (502).

7. The cleaning machine of claim 6, wherein: the motor is characterized in that a connecting sleeve (45) connected with the lower end of the nut sleeve (5) is arranged at the top of the motor (4), an output shaft (41) of the motor (4) penetrates through the connecting sleeve (45) and the nut sleeve (5) to be arranged, a bearing (46) for supporting the output shaft (41) is arranged on the connecting sleeve (45), and a guide groove (461) for washing water to penetrate through and downwards enter an inner cavity (42) of the motor (4) is formed in the bearing (46).

8. The cleaning machine of claim 6, wherein: the water absorption buffer cavity (112) is internally provided with a pump cavity of the water outlet pump (2), the bottom of the pump cavity is provided with a water absorption port (21) which is arranged corresponding to the heating piece (3), the top of the pump cavity is provided with a water outlet (22), and the box body (1) is internally provided with a spray arm (8) which is positioned above the water return area (11) and is communicated with the water outlet (22).

9. The cleaning machine of claim 5, wherein: the heating piece (3) is a thick film type heating plate, and a sealing gasket (7) used for sealing and connecting the thick film type heating plate to the bottom opening (111) of the water absorption buffer cavity (112) is arranged at the bottom of the box body (1).

10. The cleaning machine according to any one of claims 1 to 4, wherein: the bottom of motor (4) is provided with fan (9) that are used for accelerating motor (4) heat dissipation, is provided with under this fan (9) and is used for driving its rotation driving motor (91), this driving motor (91) with fan (9) are all restrained in motor (4) bottom through support (92).