CN111750585A

CN111750585A - Ice crushing device and refrigerator with same

Info

Publication number: CN111750585A
Application number: CN201910240518.5A
Authority: CN
Inventors: 崔船; 张延庆; 杜启海; 薛建军
Original assignee: Qingdao Haier Co Ltd; Qingdao Haier Refrigerator Co Ltd
Current assignee: Qingdao Haier Co Ltd; Qingdao Haier Refrigerator Co Ltd
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2020-10-09
Also published as: EP3951289A1; EP3951289A4; EP3951289B1; AU2019438321B2; AU2019438321A1; WO2020192028A1

Abstract

The invention relates to an ice crushing device and a refrigerator with the same, wherein the ice crushing device is arranged on a door body of the refrigerator; the door body is provided with a first accommodating cavity and a second accommodating cavity with an opening, and the edge of the door body is provided with a heating wire; the ice crushing device also comprises a cover plate for sealing the opening of the second accommodating cavity to form a sealed space, and a first water drainage pipe for communicating the second accommodating cavity with the refrigerating chamber of the refrigerator; the cover plate is hermetically connected with the opening through a waterproof flange and a waterproof groove which are matched with each other; one end hole of the first water drainage pipe is arranged at the bottom of the second accommodating cavity, and the other end of the end hole is exposed in the refrigerating compartment and is close to the heating wire. The invention can solve the problems that the transmission efficiency of the ice maker in the prior refrigerator is low, broken ice is easy to cause gear adhesion, accumulated water is easy to damage a motor and an evaporator and the like, thereby improving the use convenience of the refrigerator.

Description

Ice crushing device and refrigerator with same

Technical Field

The invention relates to the field of household appliances, in particular to an ice crushing device and a refrigerator with the same.

Background

With the continuous development of science and technology, the living standard of people is continuously improved, and in order to meet the requirements of people on higher living quality, the functions of household appliances are also continuously increased, such as an ice maker and the like are added on a refrigerator. An ice maker of a general refrigerator includes an ice making device for making ice cubes and storing the ice cubes in a tub-shaped container, and an ice crushing device for crushing the ice cubes so as to be conveniently taken by a user.

At present, an ice maker of a refrigerator adopts a transmission mode that a motor drives a rotating barrel of an ice crushing device to rotate through transmission of a bevel gear and a straight gear, and the transmission efficiency is low. Because the crushed ice motor and the transmission mechanism are positioned below the ice storage box, the crushed ice easily falls into the gap of the gear, and the transmission is influenced and the gear is adhered. When the water injection of the ice maker breaks down, the inside of the ice maker is continuously injected with water easily, accumulated water is easily generated in the mounting cavity of the ice crushing motor at the moment, the motor is caused to lose efficacy and potential safety hazards, the accumulated water can flow to the box body along the air channel of the refrigerator after the water level rises, and the evaporator of the refrigerator is easily damaged. In addition, because the ice machine is in the freezing environment and the ice machine is in the cold storage environment, condensation is easily generated on the surface of the ice machine, so that the use experience of a user is reduced.

Therefore, in view of the above-mentioned problems existing at present, there is a need to further improve the prior art to improve the convenience of use of the refrigerator.

Disclosure of Invention

The invention aims to provide an ice crushing device and a refrigerator with the same, and aims to solve the problems that an ice maker in the existing refrigerator is low in transmission efficiency, gear adhesion is easily caused by crushed ice, accumulated water easily damages a motor and an evaporator and the like, so that the use convenience of the refrigerator is improved.

In order to achieve one of the above objects, the present invention provides an ice crushing device, which is disposed on a door body of a refrigerator, wherein the door body is provided with a first accommodating chamber and a second accommodating chamber with an opening; the ice crushing device includes: set up in garrulous ice bucket in first holding intracavity, set up in tool bit in the garrulous ice bucket and at least part set up in the drive unit in second holding intracavity, drive unit includes: the driving rod is connected with the cutter head and drives the cutter head to rotate in the ice crushing barrel, the gear set is connected with and acts on the driving rod, and the motor is used for driving the gear set to operate; wherein, the edge of the door body is provided with a heating wire; the ice crushing device further comprises: the cover plate is used for sealing the opening of the second accommodating cavity to form a sealed space in the second accommodating cavity, and the first drainage pipe is communicated with the second accommodating cavity and the refrigerating chamber of the refrigerator; the cover plate is hermetically connected with the opening through a waterproof flange and a waterproof groove which are matched with each other; one end hole of the first water drainage pipe is arranged at the bottom of the second accommodating cavity, and the other end of the end hole is exposed in the refrigerating compartment and is close to the heating wire.

As a further improvement of an embodiment of the present invention, the gear set includes: the first gear is sleeved on the periphery of the ice crushing barrel, and the second gear is meshed with the first gear to indirectly drive the cutter head to rotate; the first gear is arranged at the upper end of the ice crushing barrel and is coaxial with the driving rod, the middle shaft of the second gear is parallel to the driving rod, and the motor drives the second gear to rotate.

As a further improvement of an embodiment of the present invention, the gear set further includes: fixed set up in the connecting box of first holding intracavity, the connecting box includes: the first box body is used for accommodating the first gear, and the second box body is used for accommodating the second gear and is connected to the first box body; the first box body and the second box body share one side wall, at least part of the side wall is hollowed out to form a hollowed-out part, and the first gear and the second gear are meshed and connected with each other through the hollowed-out part.

As a further improvement of an embodiment of the present invention, the second box includes an upper cover and a lower cover detachably disposed to each other, an upper edge of the lower cover is disposed lower than an upper edge of the first box, and the second gear is disposed in an accommodating cavity formed between the upper cover and the lower cover.

As a further improvement of an embodiment of the present invention, an upper end edge of the opening constitutes the waterproof flange; the cover plate includes: the waterproof cover comprises a cover plate main body, an extension wall, a first waterproof block and a second waterproof block, wherein the extension wall extends from the edge of the cover plate main body to the opening direction perpendicularly, the first waterproof block extends from the end part, far away from the cover plate main body, of the extension wall, and the second waterproof block is arranged on the end face, back to the opening, of the first waterproof block; the public part of the waterproof groove corresponding to the first waterproof block and the second waterproof block is arranged on the end face, facing the opening, of the first waterproof block; the depth of the waterproof groove is not less than the height of the first waterproof block.

As a further improvement of an embodiment of the present invention, a sealing ring is disposed around the door body, the heater wire is disposed around the sealing ring, a first gap is formed between at least a portion of the heater wire and the sealing ring, and the other end of the end hole of the first drain pipe is disposed in the first gap.

As a further improvement of an embodiment of the present invention, the ice crushing device further includes an ice outlet passage communicating the ice crushing barrel and the exterior of the door body; and a second drain pipe communicated with the ice outlet channel is arranged on the side wall of the ice outlet channel, and the other end hole of the second drain pipe is exposed in the refrigerating compartment and is close to the heating wire.

As a further improvement of the embodiment of the present invention, a second gap is further formed between the heating wire and the sealing ring, and the other end hole of the second drain pipe is disposed in the second gap.

As a further improvement of an embodiment of the present invention, a third drain pipe communicated with the first accommodating chamber is disposed at the bottom of the first accommodating chamber, and another end hole of the third drain pipe is exposed to the lower air duct on the door body.

In order to achieve one of the above objects, the present invention further provides a refrigerator, which includes a door body and the ice crushing device as described above, wherein the ice crushing device is disposed on the door body.

Compared with the prior art, the invention has the beneficial effects that: can improve the transmission efficiency of motor, prevent that the garrulous ice adhesion gear and prevent that ponding from causing the damage to motor and evaporimeter to promote the use convenience performance of refrigerator.

Drawings

FIG. 1 is a schematic structural diagram of a refrigerator door body in an embodiment of the invention;

FIG. 2 is a schematic structural view of the first receiving chamber and the ice crushing device;

FIG. 3 is an exploded view of the ice crushing apparatus;

FIG. 4 is a schematic structural view of a driving unit;

FIG. 5 is a schematic view of the construction of the junction box;

FIG. 6 is a schematic structural view of a cover plate;

FIG. 7 is a schematic cross-sectional view of a cover plate;

FIG. 8 is a cross-sectional view taken along line X-X of section A of FIG. 2;

FIG. 9 is an enlarged view of the portion circled at C in FIG. 8;

FIG. 10 is an enlarged schematic view of a portion circled D in FIG. 8;

FIG. 11 is a cross-sectional view taken along line Y-Y of section A of FIG. 2;

FIG. 12 is an enlarged schematic view of a portion circled B in FIG. 2;

FIG. 13 is a schematic view of a rear face configuration of the door body;

fig. 14 is an enlarged structural view of a portion circled E in fig. 13.

In the figure: 1. a door body; 11. a first accommodating cavity; 12. a second accommodating cavity; 121. an opening; 1211. a waterproof flange; 13. heating wires; 14. a seal ring; 15. a first gap; 16. a second gap; 2. a refrigerated compartment; 3. a lower air duct; 4. an ice crushing barrel; 5. a cutter head; 6. a drive unit; 61. a drive rod; 62. a gear set; 621. a first gear; 622. a second gear; 623. a connection box; 6231. a first case; 6232. a second box body; 6232a. an upper cover; 6232b. a lower cap; 6233. a side wall; 6233a. a hollowed-out portion; 63. a motor; 7. a cover plate; 71. a cover plate main body; 72. an extension wall; 73. a first waterproof block; 74. a second waterproof block; 75. a waterproof groove; 8. a first drain pipe; 9. an ice outlet channel; 10. a second drain pipe; 11. and a third water drainage pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be clearly and completely described below with reference to the detailed description of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

For convenience in explanation, the description herein uses terms indicating relative spatial positions, such as "upper," "lower," "inner," "outer," and the like, to describe one element or feature's relationship to another element or feature as illustrated in the figures. The term spatially relative position may encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "above" other elements or features would then be oriented "below" or "above" the other elements or features. Thus, the exemplary term "below" can encompass both a spatial orientation of below and above.

The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. As in the present invention, for convenience of description, in a normal use of the refrigerator, a direction toward the ground is a downward direction, a direction away from the ground is an upward direction, a direction parallel to the ground is a horizontal direction, and a direction perpendicular to the ground is a vertical direction.

As shown in fig. 1 to 12, an embodiment of the present invention provides an ice crushing device, which is disposed on a door body 1 of a refrigerator, wherein the door body 1 is provided with a first accommodating chamber 11 and a second accommodating chamber 12 having an opening 121; the ice crushing device includes: set up trash ice bucket 4 in first holding chamber 11, set up tool bit 5 in trash ice bucket 4 and at least part sets up drive unit 6 in second holding chamber 12, and drive unit 6 includes: a driving rod 61 connected to the cutter head 5 and driving the cutter head 5 to rotate in the ice crushing barrel 4, a gear set 62 connected to and acting on the driving rod 61, and a motor 63 for driving the gear set 62 to operate; wherein, the edge of the door body 1 is provided with a heating wire 13; the ice crushing device further comprises: a cover plate 7 for sealing the opening 121 of the second accommodating cavity 12 to form the second accommodating cavity 12 into a sealed space, and a first drain pipe 8 for communicating the second accommodating cavity 12 with the refrigerating compartment 2 of the refrigerator; the cover plate 7 and the opening 121 are hermetically connected through a waterproof flange 1211 and a waterproof groove 75 which are matched with each other; one of the end holes of the first drainage pipe 8 is arranged at the bottom of the second accommodating cavity 12, and the other end of the end hole is exposed in the refrigerating compartment 2 and is arranged close to the heating wire 13.

Specifically, a first accommodating cavity 11 and a second accommodating cavity 12 are formed in a door body 1 of the refrigerator; the second accommodating cavity 12 is located below the first accommodating cavity 11 and is provided with an upward opening 121, the first accommodating cavity 11 is communicated with the second accommodating cavity 12 through the opening 121, and the first accommodating cavity and the second accommodating cavity are located at the upper half part of the door body 1, so that a user can conveniently stand to use ice cubes made by the refrigerator. The edge of the door body 1 is further provided with a heating wire 13, the heating wire 13 extends along the periphery of the first accommodating cavity 11, and the heating wire 13 can prevent condensation.

The ice crushing device comprises an ice crushing barrel 4, a cutter head 5 and a driving unit 6, wherein the driving unit 6 comprises a driving rod 61, a gear set 62 and a motor 63; the ice crushing barrel 4 is positioned in the first accommodating cavity 11, and the cutter head 5 is arranged in the ice crushing barrel 4; the motor 63 is arranged in the second accommodating cavity 12, an output shaft of the motor 63 is vertically upward, the output shaft of the motor 63 is connected with the driving gear set 62 and drives the driving gear set 62 to operate, the gear set 62 is connected with and drives the driving rod 61 to rotate, and the driving rod 61 is connected with the cutter head 5 and drives the cutter head 5 to rotate in the ice crushing barrel 4, so that ice crushing is realized.

The ice crushing device also comprises a cover plate 7 and a first water discharge pipe 8; the cover plate 7 is provided with a waterproof groove 75, the opening 121 of the second accommodating cavity 12 is provided with a waterproof flange 1211, the waterproof flange 1211 is matched with the waterproof groove 75, the cover plate 7 can be hermetically connected with the opening 121, so that the second accommodating cavity 12 forms a closed space to prevent accumulated water and ice slag from entering the second accommodating cavity 12, and the normal operation of the motor 63 is influenced; the end hole one end of first drain pipe 8 sets up in the bottom of second holding chamber 12, and the other end then exposes to cold-stored room 2 and is close to heater strip 13 to intercommunication second holding chamber 12 and cold-stored room 2 of refrigerator, so that discharge the ponding of second holding chamber 12 inside, prevent ponding influence motor 63 and cause the harm.

Further, the gear set 62 includes: a first gear 621 sleeved on the periphery of the ice crushing barrel 4, and a second gear 622 meshed with the first gear 621 to indirectly drive the cutter head 5 to rotate; the first gear 621 is disposed at the upper end of the ice crushing barrel 4 and is coaxial with the driving rod 61, the middle axis of the second gear 622 is parallel to the driving rod 61, and the motor 63 drives the second gear 622 to rotate.

As shown in fig. 3 and 4, the gear set 62 includes a first gear 621 and a second gear 622; first gear 621 cup joints at the upper end of garrulous ice bucket 4 periphery and coaxial with actuating lever 61, second gear 622 and first gear 621 intermeshing and the axis of second gear 622 is on a parallel with actuating lever 61, when motor 63 connects and drives second gear 622 and rotate, second gear 622 passes through first gear 621 and garrulous ice bucket 4 and indirectly drives tool bit 5 and rotates, realizes the garrulous ice function.

Preferably, the first gear 621 and the second gear 622 may be provided as spur gears. Improve the mode through two bevel gear transmissions among the prior art, install motor 63 in the below of garrulous ice bucket 4, through straight-gear direct drive, can improve motor 63's transmission efficiency greatly, reduce the transmission loss.

Further, the gear set 62 further includes: the connection box 623 that sets up in first accommodation chamber 11 fixedly, connection box 623 includes: a first case 6231 housing the first gear 621 and a second case 6232 housing the second gear 622 and connected to the first case 6231; the first case 6231 and the second case 6232 share a sidewall 6233, and at least a portion of the sidewall 6233 is hollowed to form a hollowed portion 6233A, and the first gear 621 and the second gear 622 are engaged with each other through the hollowed portion 6233A.

Further, the second case 6232 includes an upper cover 6232a and a lower cover 6232b detachably disposed to each other, an upper edge of the lower cover 6232b is disposed lower than an upper edge of the first case 6231, and the second gear 622 is disposed in the accommodating chamber formed between the upper cover 6232a and the lower cover 6232b.

As shown in fig. 5, the gear set 62 further includes a connection box 623, and the connection box 623 is fixedly disposed in the first accommodation cavity 11; the connection box 623 comprises a first box 6231 and a second box 6232; the first gear 621 is received in the first case 6231, and the second gear 622 is received in the second case 6232; the first box 6231 and the second box 6232 share a sidewall 6233 for fixed connection, a part of the sidewall 6233 is hollowed to form a hollow portion 6233A, and the first gear 621 and the second gear 622 are engaged with each other in a space where the hollow portion 6233A is located.

The second cartridge 6232 further comprises an upper cap 6232a and a lower cap 6232b which are detachably provided; the second gear 622 is arranged in an accommodating cavity formed after the upper cover 6232a and the lower cover 6232b are hermetically connected; the upper edge of the lower cover 6232b is lower than the upper edge of the first box 6231, and after the upper cover 6232a and the lower cover 6232b are connected, the upper cover 6232a is tightly attached to the side wall 6233, so that the connection sealing performance between the upper cover 6232a and the lower cover 6232b can be ensured, and the gear adhesion caused by ice slag falling into the gear gap can be effectively prevented.

Further, an upper end edge of the opening 121 constitutes a waterproof flange 1211; the cover plate 7 includes: the waterproof structure comprises a cover plate main body 71, an extension wall 72, a first waterproof block 73 and a second waterproof block 74, wherein the extension wall 72 extends from the edge of the cover plate main body 71 to the direction of an opening 121 perpendicularly, the first waterproof block 73 extends from the end part of the extension wall 72 far away from the cover plate main body 71, and the second waterproof block 74 is arranged on the end face of the first waterproof block 73, which is far away from the opening 121; the waterproof groove 75 is formed in the common part corresponding to the first waterproof block 73 and the second waterproof block 74 and is formed in the end face, facing the opening 121, of the first waterproof block 73; the depth of the waterproof groove 75 is not less than the height of the first waterproof block 73.

Specifically, the upper end edge of the opening 121 protrudes vertically upward to form a closed waterproof flange 1211, a waterproof groove 75 is formed on the downward surface of the cover plate 7, and the waterproof flange 1211 is connected with the waterproof groove 75 in a sealing manner.

As shown in fig. 6 and 7, the cover 7 includes a cover main body 71, an extension wall 72, a first waterproof block 73, and a second waterproof block 74; the cover plate main body 71 is arranged along the horizontal direction, the edge of the cover plate main body 71 extends vertically downwards to form an extension wall 72, the edge of the extension wall 72 extends horizontally outwards to form a first waterproof block 73, and a second waterproof block 74 is stacked above the first waterproof block 73; the waterproof groove 75 is provided in an overlapping area of the first waterproof block 73 and the second waterproof block 74 with the notch direction facing downward, and the depth of the waterproof groove 75 is not less than the height of the first waterproof block 73.

Therefore, the cover plate 7 can not only shield the motor 63 to prevent ice slag from falling into the motor 63, but also effectively shield accumulated water outside the waterproof flange 1211 to prevent the accumulated water from flowing into the second accommodating cavity 12 to affect the motor 63.

Further, a sealing ring 14 is arranged on the periphery of the door body 1, the heating wire 13 is arranged around the sealing ring 14, a first gap 15 is formed between at least part of the heating wire and the sealing ring 14, and the other end of the end hole of the first water drainage pipe 8 is arranged in the first gap 15.

As shown in fig. 8 and 9, the first receiving chamber 11 is provided with a small door (not shown) for closing the first receiving chamber 11 and sealing the same, so as to separate the freezing space inside the first receiving chamber 11 from the external refrigerating space; the sealing ring 14 extends along the periphery of the opening of the first accommodating cavity 11, and after the small door is closed, the sealing ring 14 is tightly attached to the small door, so that the sealing performance of the small door and the first accommodating cavity 11 can be ensured, and the cold air is prevented from being connected in series. The heater strip 13 sets up around the periphery of sealing washer 14, forms a plurality of clearance with sealing washer 14, and the end opening of first calandria 8 then sets up in first clearance 15, and the end opening of first calandria 8 is located between sealing washer 14 and the heater strip 13 promptly, can effectively restrain and produce the condensation in the first calandria 8.

Preferably, the heating wire 13 surrounds the end hole of the first drain pipe 8 in an arc shape, so that the heated area can be enlarged and the condensation phenomenon can be greatly suppressed.

Further, the ice crushing device also comprises an ice outlet channel 9 which is communicated with the ice crushing barrel 4 and the outside of the door body 1; the side wall 6233 of the ice outlet passage 9 is provided with a second water discharge pipe 10 communicated with the ice outlet passage 9, and the other end hole of the second water discharge pipe 10 is exposed in the refrigerating compartment 2 and is arranged close to the heating wire 13.

Further, the heating wire 13 and the sealing ring 14 form a second gap 16, and the other end hole of the second water drainage pipe 10 is disposed in the second gap 16.

As shown in fig. 11 and 12, the ice crushing device further comprises an ice outlet channel 9, the ice outlet channel 9 is communicated with the ice crushing barrel 4 and the outside of the door body 1, and ice cubes are transported to the outside of the refrigerator to facilitate the user to take the ice cubes; the side wall 6233 of the ice outlet passage 9 is provided with a second water outlet pipe 10, and the other end hole of the second water outlet pipe 10 is also exposed to the refrigerating compartment 2 and close to the heating wire 13, namely, is positioned in the second gap 16 formed by the heating wire 13 and the sealing ring 14.

Therefore, when water is continuously injected or water is accumulated in the ice crushing barrel 4 due to the abnormal water injection procedure of the ice maker of the refrigerator, the first accommodating cavity 11 is sealed by the small door and the sealing ring 14, the ice outlet channel 9 is sealed by the ice outlet cover plate (not shown in the figure), the accumulated water can be accumulated in the ice outlet channel 9 and spread to the first accommodating cavity 11, and at the moment, the second water discharge pipe 10 can discharge the accumulated water to prevent the accumulated water from entering the first accommodating cavity 11 to damage the motor 63; simultaneously, also prevent that water level from rising after, ponding can flow to the box along the refrigerator wind channel to cause the damage to the evaporimeter in the box.

Preferably, the second water drainage pipe 10 is arranged at the top of the ice outlet channel 9, so that accumulated water overflowing into the first accommodating cavity 11 can be quickly drained.

Further, a third drain pipe 11 communicated with the first accommodating cavity 11 is arranged at the bottom of the first accommodating cavity 11, and the other end hole of the third drain pipe 11 is exposed to the lower air duct 3 on the door body 1.

As shown in fig. 13 and 14, the bottom of the first accommodating cavity 11 is further provided with a third drain pipe 11, and the third drain pipe 11 is communicated with the first accommodating cavity 11 and the lower air duct 3 arranged on the refrigerator door 1, so that accumulated water accumulated in the first accommodating cavity 11 is further discharged, and damage caused after the accumulated water enters the evaporator is prevented.

In order to achieve one of the above objects, the present invention further provides a refrigerator, which comprises a door body 1 and an ice crushing device, wherein the ice crushing device is arranged on the door body 1, and a user can conveniently take ice blocks from the outer side of the door body 1.

In conclusion, the ice crushing device and the refrigerator with the ice crushing device provided by the invention have the advantages that the transmission mode of the motor 63 is improved, ice residues and accumulated water in the ice crushing process are prevented from entering the motor 63 to influence the motor 63 through the cover plate 7, and the accumulated water which possibly occurs is discharged as soon as possible through the arrangement of the plurality of water discharge pipes, so that the problems that the transmission efficiency of an ice maker in the existing refrigerator is low, gear adhesion is easily caused by ice crushing, the motor 63 and an evaporator are easily damaged by the accumulated water and the like are solved, and the use convenience of the refrigerator is improved.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention and is not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention are included in the scope of the present invention.

Claims

1. The ice crushing device is arranged on a door body of a refrigerator and is characterized in that a first accommodating cavity and a second accommodating cavity with an opening are formed in the door body;

the ice crushing device includes: set up in garrulous ice bucket in first holding intracavity, set up in tool bit in the garrulous ice bucket and at least part set up in the drive unit in second holding intracavity, drive unit includes: the driving rod is connected with the cutter head and drives the cutter head to rotate in the ice crushing barrel, the gear set is connected with and acts on the driving rod, and the motor is used for driving the gear set to operate;

wherein, the edge of the door body is provided with a heating wire;

the ice crushing device further comprises: the cover plate is used for sealing the opening of the second accommodating cavity to form a sealed space in the second accommodating cavity, and the first drainage pipe is communicated with the second accommodating cavity and the refrigerating chamber of the refrigerator;

the cover plate is hermetically connected with the opening through a waterproof flange and a waterproof groove which are matched with each other;

one end hole of the first water drainage pipe is arranged at the bottom of the second accommodating cavity, and the other end of the end hole is exposed in the refrigerating compartment and is close to the heating wire.

2. An ice crushing device as claimed in claim 1, wherein the gear set comprises:

the first gear is sleeved on the periphery of the ice crushing barrel, and the second gear is meshed with the first gear to indirectly drive the cutter head to rotate;

the first gear is arranged at the upper end of the ice crushing barrel and is coaxial with the driving rod, the middle shaft of the second gear is parallel to the driving rod, and the motor drives the second gear to rotate.

3. An ice crushing device as claimed in claim 2, wherein the gear set further comprises:

fixed set up in the connecting box of first holding intracavity, the connecting box includes: the first box body is used for accommodating the first gear, and the second box body is used for accommodating the second gear and is connected to the first box body;

the first box body and the second box body share one side wall, at least part of the side wall is hollowed out to form a hollowed-out part, and the first gear and the second gear are meshed and connected with each other through the hollowed-out part.

4. An ice crushing device as claimed in claim 3, wherein the second box body comprises an upper cover and a lower cover which are detachably arranged with each other, the upper edge of the lower cover is arranged lower than the upper edge of the first box body, and the second gear is arranged in a containing cavity formed between the upper cover and the lower cover.

5. An ice crushing device as claimed in claim 1, wherein an upper end edge of the opening constitutes the waterproof flange;

the cover plate includes: the waterproof cover comprises a cover plate main body, an extension wall, a first waterproof block and a second waterproof block, wherein the extension wall extends from the edge of the cover plate main body to the opening direction perpendicularly, the first waterproof block extends from the end part, far away from the cover plate main body, of the extension wall, and the second waterproof block is arranged on the end face, back to the opening, of the first waterproof block;

the public part of the waterproof groove corresponding to the first waterproof block and the second waterproof block is arranged on the end face, facing the opening, of the first waterproof block;

the depth of the waterproof groove is not less than the height of the first waterproof block.

6. An ice crushing device as claimed in claim 1, wherein a sealing ring is disposed around the door body, the heating wire is disposed around the sealing ring, a first gap is formed between at least a part of the heating wire and the sealing ring, and the other end of the end hole of the first drainage pipe is disposed in the first gap.

7. An ice crushing device as claimed in claim 6, further comprising an ice outlet passage communicating the ice crushing barrel and the exterior of the door body;

and a second drain pipe communicated with the ice outlet channel is arranged on the side wall of the ice outlet channel, and the other end hole of the second drain pipe is exposed in the refrigerating compartment and is close to the heating wire.

8. An ice crushing device as claimed in claim 7, wherein the heating wire and the sealing ring further form a second gap, and the other end hole of the second drain pipe is disposed in the second gap.

9. An ice crushing device as claimed in claim 1, wherein a third drain pipe communicated with the first accommodating cavity is arranged at the bottom of the first accommodating cavity, and the other end hole of the third drain pipe is exposed to the lower air duct on the door body.

10. A refrigerator, characterized in that the refrigerator comprises a door body and an ice crushing device according to any one of claims 1 to 9, wherein the ice crushing device is arranged on the door body.