Ice crushing device, ice maker and refrigerator

Abstract

The invention relates to the technical field of refrigerators, in particular to an ice crushing device, an ice maker and a refrigerator, the ice crushing device comprises a shell, a first ice crushing cutter set, a second ice crushing cutter set and a driving mechanism, the shell is provided with an ice crushing chamber, an ice inlet and an ice outlet, and the ice inlet and the ice outlet communicate with the ice crushing chamber; the first ice crushing cutter group is rotatably arranged in the ice crushing chamber; the second ice crushing cutter group is rotatably arranged in the ice crushing chamber; the driving mechanism is arranged on the shell and comprises a power unit and a first transmission assembly, the output end of the power unit is connected with the first ice breaking cutter set, the input end of the first transmission assembly is connected with the output end of the power unit, and the output end of the first transmission assembly is connected with the second ice breaking cutter set; when the power unit drives the first ice crushing cutter set to rotate in the first direction, the first transmission assembly drives the second ice crushing cutter set to rotate in the second direction, the first direction is opposite to the second direction, the ice crushing device can fully crush ice blocks, and the ice block crushing quality is improved.

Description

Technical Field

[0001] The present application relates to the technical field of refrigerators, and in particular to an ice crushing device, an ice maker and a refrigerator. Background Art

[0002] With the improvement of people's living standards, high-end refrigerators are becoming more and more popular among consumers, and automatic ice makers are an important symbol of current and future high-end refrigerators. The automatic ice maker system includes an ice maker assembly and an ice storage box assembly; the ice maker assembly makes ice cubes and separates the ice cubes, and the ice storage box assembly, in addition to storing ice cubes, also has an ice crushing device, which can provide whole ice cubes or crushed ice cubes according to user needs.

[0003] At present, most ice crushing devices adopt the form of cutting by knives, in which the knives are divided into fixed knives and rotating knives. By adjusting the rotation direction of the rotating knives, whole ice cubes and crushed ice can be provided to users respectively. For example: when the rotating knife rotates in a clockwise direction, it can cooperate with the fixed knife to complete the crushing of ice cubes, thereby providing crushed ice; when the rotating knife rotates in a counterclockwise direction, the ice cubes can be pushed out by the rotating knife, thereby providing whole ice cubes. However, the existing ice crushing devices generally arrange the fixed knives near the ice outlet. The ice cubes become crushed ice cubes after a staggered cutting, and then fall from the ice outlet. This design will lead to insufficient crushing of ice cubes to a certain extent, resulting in the problem of small ice cubes in the crushed ice, which affects the quality of ice crushing. Summary of the invention

[0004] The present application provides an ice crushing device, an ice maker and a refrigerator. The ice crushing device can fully crush ice cubes and improve the quality of ice crushing.

[0005] In a first aspect, the present application provides an ice crushing device, comprising: a shell, having an ice crushing chamber and an ice inlet and an ice outlet connected to the ice crushing chamber; a first ice crushing blade group rotatably disposed in the ice crushing chamber; a second ice crushing blade group rotatably disposed in the ice crushing chamber; a driving mechanism, disposed on the shell, the driving mechanism comprising a power unit and a first transmission assembly, the output end of the power unit being connected to the first ice crushing blade group, the input end of the first transmission assembly being connected to the output end of the power unit, and the output end of the first transmission assembly being connected to the second ice crushing blade group; wherein, when the power unit drives the first ice crushing blade group to rotate in a first direction, the first transmission assembly drives the second ice crushing blade group to rotate in a second direction, and the first direction is opposite to the second direction.

[0006] In a possible implementation, the first ice crushing blade set includes multiple groups of first blades, and the second ice crushing blade set includes multiple groups of second blades. The multiple groups of first blades and the multiple groups of second blades are staggered along the axial direction of the shell.

[0007] In one possible implementation, a rotating shaft is provided at the output end of the power unit, and multiple groups of first blades are arranged on the outer peripheral side of the rotating shaft; the second ice crushing blade group also includes a cylinder, the cylinder is coaxially arranged with the rotating shaft, the cylinder is connected to the output end of the first transmission assembly, and multiple groups of second blades are arranged on the inner surface of the cylinder.

[0008] In a possible implementation, a positioning hole for the rotation shaft to pass through is provided in the middle of the second blade.

[0009] In a possible implementation, the second ice crushing blade assembly further includes a scraper disposed on the inner surface of the cylinder, the scraper abutting against the inner bottom wall of the ice crushing chamber, and being used to push the crushed ice on the inner bottom wall of the ice crushing chamber to the ice outlet.

[0010] In one possible implementation, the first transmission assembly includes: a reversing gear set, the input end of the reversing gear set is connected to the output end of the power unit, and the rotation direction of the output end of the reversing gear set is opposite to the rotation direction of the output end of the power unit; and a first unidirectional transmission member, the input end of the first unidirectional transmission member is connected to the output end of the reversing gear set, and the output end of the first unidirectional transmission member is connected to the second ice crushing blade group.

[0011] In one possible implementation, the reversing gear set includes: a first conical wheel connected to the output end of the power unit; a second conical wheel coaxially arranged with the first conical wheel, the second conical wheel connected to the input end of the first one-way transmission member; and a transmission conical wheel, the transmission conical wheel meshing with the first conical wheel and the second conical wheel respectively.

[0012] In one possible implementation, the first one-way transmission member includes: a first pawl, which is arranged on the second conical wheel; a first ratchet, which is engaged with the first pawl, and when the second conical wheel rotates along the second direction, the first ratchet is used to drive the second ice crushing blade group to rotate along the second direction.

[0013] In a possible implementation, the first one-way transmission member further includes: an active shift block connected to the first ratchet; and a driven shift tooth connected to the second ice crushing blade assembly, wherein the driven shift tooth is engaged with the active shift block.

[0014] In one possible implementation, the driving mechanism also includes a second one-way transmission member connected to the output end of the power unit, and the second one-way transmission member is connected to the second ice-crushing blade group. When the power unit drives the first ice-crushing blade group to rotate along the second direction, the second one-way transmission member drives the second ice-crushing blade group to rotate synchronously with the first ice-crushing blade group.

[0015] In a possible implementation, the second one-way transmission member includes a second pawl and a second ratchet wheel, the second pawl is connected to the output end of the power unit, the second ratchet wheel is connected to the second ice crushing assembly, and the second ratchet wheel engages with the second pawl.

[0016] In a second aspect, an embodiment of the present application provides an ice maker, comprising: the above-mentioned ice crushing device; and an ice storage box, the ice storage box having an ice cube outlet, and the ice cube outlet is connected to an ice inlet of the ice crushing device.

[0017] In a third aspect, an embodiment of the present application provides a refrigerator comprising the above-mentioned ice maker.

[0018] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0019] The ice crushing device, ice maker and refrigerator provided by the embodiments of the present application, the ice crushing device drives the first ice crushing blade group to rotate in a first direction through a power unit, converts the power into reverse output through a first transmission component, and the second ice crushing blade group rotates in a second direction under the reverse drive and forms a shear force with the first ice crushing blade group. The reverse motion of the first ice crushing blade group and the second ice crushing blade group generates a larger ice crushing torque, which can fully crush the ice cubes and improve the quality of ice crushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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.

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0023] Figure 1 A schematic diagram of the three-dimensional structure of an ice crushing device provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the explosion structure of an ice crushing device provided in an embodiment of the present application;

[0025] Figure 3 A schematic diagram of the structure of a power unit and a first transmission assembly provided in an embodiment of the present application;

[0026] Figure 4 for Figure 3 A local enlarged structural schematic diagram;

[0027] Figure 5A schematic structural diagram of a housing, a first ice-crushing blade group, a second ice-crushing blade group, and a second one-way transmission member provided in an embodiment of the present application;

[0028] Figure 6 for Figure 5 A schematic diagram of the local enlarged structure at B;

[0029] Figure 7 A schematic diagram of the structure of a second ice crushing blade assembly when cut open provided by an embodiment of the present application;

[0030] Figure 8 A schematic diagram of the structure of a reversing gear set provided in an embodiment of the present application;

[0031] Fig. 9 A schematic structural diagram of a first one-way transmission member provided in an embodiment of the present application;

[0032] Fig.10 A schematic structural diagram of a second one-way transmission member provided in an embodiment of the present application.

[0033] Description of reference numerals:

[0034] 1. Shell; 11. Ice inlet; 12. Ice outlet;

[0035] 2. First ice-crushing blade set; 21. First blade;

[0036] 3. Second ice-crushing blade set; 31. Second blade; 311. Positioning hole; 312. Bushing; 32. Cylinder; 33. Scraper;

[0037] 4. Driving mechanism; 41. Power unit; 411. Rotating shaft; 412. Encapsulating shell; 42. First transmission assembly; 421. Reversing gear set; 4211. First conical wheel; 4212. Second conical wheel; 4213. Transmission conical wheel; 422. First one-way transmission member; 4221. First pawl; 4222. First ratchet; 4223. Active shift block; 4224. Driven shift tooth; 43. Second one-way transmission member; 431. Second pawl; 432. Second ratchet. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0039] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0040] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0041] The present application provides an ice crushing device, an ice maker and a refrigerator. The ice crushing device can fully crush ice cubes and improve the quality of ice crushing.

[0042] Figure 1 A schematic diagram of the three-dimensional structure of an ice crushing device provided in an embodiment of the present application; Figure 2 A schematic diagram of the explosion structure of an ice crushing device provided in an embodiment of the present application; Figure 3 A schematic diagram of the structure of a power unit and a first transmission assembly provided in an embodiment of the present application; Figure 4 for Figure 3 A local enlarged structural schematic diagram; Figure 5 A schematic structural diagram of a housing, a first ice-crushing blade group, a second ice-crushing blade group, and a second one-way transmission member provided in an embodiment of the present application;

[0043] Figure 6 for Figure 5 A schematic diagram of the local enlarged structure at B; Figure 7 A schematic diagram of the structure of a second ice crushing blade assembly when cut open provided by an embodiment of the present application; Figure 8 A schematic diagram of the structure of a reversing gear set provided in an embodiment of the present application; Fig. 9 A schematic structural diagram of a first one-way transmission member provided in an embodiment of the present application; Fig.10 A schematic structural diagram of a second one-way transmission member provided in an embodiment of the present application.

[0044] like Figure 1-Figure 10 As shown, an embodiment of the present application provides an ice crushing device, comprising: a housing 1 , a first ice crushing blade group 2 , a second ice crushing blade group 3 and a driving mechanism 4 .

[0045] The housing 1 has an ice crushing chamber and an ice inlet 11 and an ice outlet 12 connected to the ice crushing chamber. Specifically, the ice inlet 11 is arranged at the top of the housing 1 for introducing ice cubes, and the ice outlet 12 is arranged at the bottom of the housing 1 for exporting ice cubes or crushed ice.

[0046] The first ice crushing blade set 2 is rotatably disposed in the ice crushing chamber.

[0047] The second ice crushing blade set 3 is rotatably disposed in the ice crushing chamber.

[0048] The driving mechanism 4 is arranged on the shell 1, and the driving mechanism 4 includes a power unit 41 and a first transmission assembly 42. The output end of the power unit 41 is connected to the first ice crushing blade group 2, the input end of the first transmission assembly 42 is connected to the output end of the power unit 41, and the output end of the first transmission assembly 42 is connected to the second ice crushing blade group 3.

[0049] When the power unit 41 drives the first ice-crushing blade set 2 to rotate in a first direction, the first transmission assembly 42 drives the second ice-crushing blade set 3 to rotate in a second direction, and the first direction is opposite to the second direction.

[0050] In the present application, the first ice-crushing blade group 2 is driven to rotate in a first direction by the power unit 41, and the power is converted into reverse output by the first transmission assembly 42. The second ice-crushing blade group 3 rotates in a second direction under reverse drive and forms a shear force with the first ice-crushing blade group 2. The reverse motion of the first ice-crushing blade group 2 and the second ice-crushing blade group 3 generates a larger ice-crushing torque, which can fully crush the ice cubes and improve the quality of ice crushing.

[0051] In the related art, the current ice crushing devices all adopt the form of knife cutting, wherein the knife is divided into a fixed knife and a rotating knife. By adjusting the rotation direction of the rotating knife, whole ice cubes and crushed ice can be provided to the user respectively. For example: when the rotating knife rotates in a clockwise direction, it can cooperate with the fixed knife to complete the crushing of ice cubes, thereby providing crushed ice; when the rotating knife rotates in a counterclockwise direction, the ice cubes can be pushed out by the rotating knife, thereby providing whole ice cubes. However, the current ice crushing devices generally arrange the fixed knife near the ice outlet 12. The ice cubes become crushed ice cubes after a staggered cutting, and then fall from the ice outlet 12. This design will lead to insufficient crushing of the ice cubes to a certain extent, resulting in the problem of small ice cubes in the crushed ice, which affects the quality of ice crushing.

[0052] In the embodiment of the present application, the first ice-crushing blade group 2 and the second ice-crushing blade group 3 rotate in opposite directions and form a shear force. The reverse motion of the first ice-crushing blade group 2 and the second ice-crushing blade group 3 generates a greater ice-crushing torque, which can fully crush the ice cubes and improve the quality of ice crushing. It can also improve the ice crushing efficiency. The reverse rotation can crush the ice more evenly and avoid ice accumulation. Compared with single-direction ice crushing, the size of ice particles is more uniform.

[0053] Moreover, in the present application, the same power unit 41 is used to provide power and simultaneously drive the first ice-crushing blade group 2 and the second ice-crushing blade group 3 to rotate, thereby reducing the layout of the power unit 41 and saving occupied space.

[0054] In some embodiments, the first ice crushing blade set 2 includes multiple groups of first blades 21 , and the second ice crushing blade set 3 includes multiple groups of second blades 31 . The multiple groups of first blades 21 and the multiple groups of second blades 31 are staggered along the axial direction of the housing 1 .

[0055] In the present application, multiple groups of first blades 21 are arranged at intervals along the axial direction of the ice crushing chamber, and multiple groups of second blades 31 are arranged at intervals along the axial direction of the ice crushing chamber. The first blades 21 and the second blades 31 are staggered in the axial direction. When the two groups of blades rotate in opposite directions, multiple shear points are formed. The staggered arrangement allows the ice cubes to be cut multiple times, forming a multiple cutting effect similar to the "scissors" effect. The staggered arrangement of the first blades 21 and the second blades 31 increases the space utilization of the ice crushing chamber. In the process of moving from top to bottom, the ice cubes are crushed in sequence by the multiple layers of first blades 21 and second blades 31, which improves the uniformity and thoroughness of the ice crushing and avoids the problem of ice cubes piling up in certain areas. It also reduces the workload of a single blade, making the ice crushing process more continuous and smooth.

[0056] In some embodiments, a rotating shaft 411 is provided at the output end of the power unit 41, and multiple groups of first blades 21 are arranged on the outer peripheral side of the rotating shaft 411; the second ice crushing blade group 3 also includes a cylinder 32, the cylinder 32 is coaxially arranged with the rotating shaft 411, the cylinder 32 is connected to the output end of the first transmission assembly 42, and multiple groups of second blades 31 are arranged on the inner surface of the cylinder 32.

[0057] like Figure 2 As shown, specifically, the power unit 41 is a motor, which is fixed on the outside of the housing 1. The motor shaft 411 extends into the ice crushing chamber of the housing 1 and is connected to the first ice crushing blade group 2. When the motor drives the shaft 411 to rotate in the first direction, the power of the shaft 411 is transmitted to the second ice crushing blade group 3 through the first transmission assembly 42, and drives the second ice crushing blade group 3 to rotate in the second direction. A packaging shell 412 is provided on the outer cover of the motor to protect the motor.

[0058] In the present application, the rotating shaft 411 directly drives the first blade 21 as the core transmission component, the cylinder 32 is sleeved on the outer periphery of the rotating shaft 411 to form a concentric structure, and the second blade 31 is fixed to the inner wall of the cylinder 32 to form a match with the first blade 21, and the optimal use of space is achieved through the coaxial arrangement. The cylinder 32 is coaxially arranged with the rotating shaft 411, which realizes a compact structure, improves transmission efficiency and operation stability, reduces the overall volume of the device, facilitates maintenance and replacement of the first blade 21 and the second blade 31, and reduces the number of accessories such as bearings.

[0059] Specifically, each set of first blades 21 includes a plurality of first cutters, which are evenly arranged along the outer circumference of the rotating shaft 411, thereby increasing the contact time with the ice cubes and improving the efficiency and effect of crushing the ice cubes. Each set of second blades 31 includes a plurality of second cutters, which are fixedly connected to the inner surface of the cylinder 32, and the plurality of second cutters are evenly distributed along the circumference of the rotating shaft 411, and are distributed in layers with the plurality of first cutters of the first blades 21, so as to shear and crush the ice cubes layer by layer, thereby improving the effect of crushing the ice cubes.

[0060] In a specific embodiment, each group of first blades 21 includes three first cutters, the three first cutters are located in the same plane and are evenly distributed around the circumference of the rotating shaft 411; each group of second blades 31 includes three second cutters, the three second cutters are located in the same plane and are evenly distributed around the circumference of the rotating shaft 411, one end of the three second cutters away from the rotating shaft 411 is fixedly connected to the inner surface of the cylinder 32, and one end of the three second cutters adjacent to the rotating shaft 411 is fixed together, thereby ensuring the strength of the second blade 31 structure and thereby ensuring the effect of crushing ice cubes.

[0061] Optionally, the number of first cutters in each group of first blades 21 may also be 4, 5, etc., and the number of second cutters in each group of second blades 31 may also be 4, 5, etc.

[0062] In a preferred embodiment, there is a gap between each layer of the first blade 21 and the adjacent second blade 31, and the gap can also be set in a gradual form, that is, the gap is larger as it is closer to the ice inlet 11, and the gap is smaller as it is closer to the ice outlet 12. The ice cubes enter the ice crushing chamber from the ice inlet 11 and move toward the ice outlet 12, and finally are discharged through the ice outlet 12, so that the ice cubes are gradually crushed in the ice crushing chamber, which can not only ensure the crushing effect of the ice cubes, but also avoid the situation where the ice cubes are too large in the early stage and cause the material to get stuck, thereby protecting the first ice crushing blade group 2 and the second ice crushing blade group 3.

[0063] Optionally, the gap between the first blade 21 and the second blade 31 may also be set to be of equal width.

[0064] like Figure 7 As shown, the ice crushing chamber of the shell 1 is a cylindrical cavity coaxially arranged with the rotating shaft 411, and the cylinder 32 is arranged in the cylindrical cavity. The outer circumferential surface of the cylinder 32 is slidably matched with the inner surface of the ice crushing chamber, and can also provide a limiting effect for the second ice crushing blade group 3 to ensure the stability of the second ice crushing blade group 3 when rotating.

[0065] In some embodiments, a positioning hole 311 is disposed in the middle of the second blade 31 for the rotation shaft 411 to pass through.

[0066] In the present application, the positioning hole 311 forms a precise fit with the rotating shaft 411, and the accurate positioning of the second blade 31 is achieved through the positioning hole 311. The positioning hole 311 can provide auxiliary support, reduce the radial deviation of the second blade 31, ensure that the second blade 31 and the rotating shaft 411 maintain concentricity, improve the stability and accuracy of the device operation, avoid blade shaking or eccentricity problems, reduce operating noise and vibration, and extend the service life of the blade and the rotating shaft 411.

[0067] Specifically, the three second cutters of each group of second blades 31 are connected to the central axis of the ice crushing chamber, and a positioning hole 311 is formed at the connection, and radial positioning is performed with the rotating shaft 411 through the positioning hole 311, thereby ensuring the stability of the second ice crushing blade group 3 during rotation. A coaxial bushing 312 is provided at at least part of the positioning holes 311, and the bushing 312 increases the strength of the positioning holes 311, thereby further ensuring the stability and service life of the second ice crushing blade group 3.

[0068] In some embodiments, the second ice crushing blade assembly 3 further includes a scraper 33 disposed on the inner surface of the cylinder 32 , the scraper 33 abuts against the inner bottom wall of the ice crushing chamber to push the crushed ice on the inner bottom wall of the ice crushing chamber to the ice outlet 12 .

[0069] In the present application, the scraper 33 rotates with the cylinder 32 to continuously clean the bottom, and the scraper 33 maintains abutment with the bottom wall at an appropriate pressure. The angle design of the scraper 33 realizes directional transportation, and the rotational motion is used to push the crushed ice to the ice outlet 12, so as to avoid the accumulation of crushed ice at the bottom, improve the ice outlet efficiency, realize automatic transportation of crushed ice, and reduce the problem of crushed ice freezing or sticking at the bottom. The bottom of the ice crushing chamber is kept clean, which ensures that the ice crushing device continues to operate efficiently and improves the continuity and uniformity of ice outlet.

[0070] In the related art, the current ice crushing device generally arranges the fixed blade near the ice outlet 12, and the ice cubes are cut alternately in sequence to become crushed ice cubes, and then fall through the ice outlet 12. When the ice crushing chamber is needed, the rotating blade rotates forward to cooperate with the fixed blade to crush the ice cubes and the crushed ice cubes are discharged through the ice outlet 12; when the whole ice is needed, the rotating blade slowly rotates in the opposite direction to discharge the whole ice cubes through the ice outlet 12. However, when the existing ice crushing device is discharging crushed ice, a part of the crushed ice will remain on the inner bottom wall of the ice crushing chamber and cannot be discharged in time, and will be mixed in the whole ice when discharging the whole ice later, so that some crushed ice is mixed in the discharged whole ice, affecting the quality of the ice, and further affecting the user experience.

[0071] In the present application, a scraper 33 is provided on the inner side of the cylinder 32. When producing crushed ice, the first ice crushing knife group 2 and the second ice crushing knife group 3 crush the ice cubes, and the whole ice is crushed into crushed ice cubes. The scraper 33 is used to clean the crushed ice on the bottom wall of the ice crushing chamber in time, and the crushed ice is scraped out through the ice outlet 12 to avoid the situation where the crushed ice remains in the ice crushing chamber and is mixed with the whole ice later, thereby improving the quality of the ice output and improving the user experience.

[0072] Optionally, the scraper 33 can be designed as an elastic scraper 33 to provide adaptive pressure, ensuring that the scraper 33 can fully fit with the inner bottom wall of the ice crushing chamber, thereby ensuring the cleaning effect of the crushed ice; the scraper 33 can also be designed as a spiral scraper 33 to enhance the conveying effect, and can better convey the crushed ice on the bottom wall of the ice crushing chamber to the ice outlet 12 and export it.

[0073] like Figure 2 , 8 As shown in Figure 9, in some embodiments, the first transmission assembly 42 includes: a reversing gear set 421, the input end of the reversing gear set 421 is connected to the output end of the power unit 41, and the rotation direction of the output end of the reversing gear set 421 is opposite to the rotation direction of the output end of the power unit 41; and a first one-way transmission member 422, the input end of the first one-way transmission member 422 is connected to the output end of the reversing gear set 421, and the output end of the first one-way transmission member 422 is connected to the second ice crushing blade group 3.

[0074] In the present application, the reversing gear set 421 realizes the power direction conversion, the one-way transmission member ensures the one-way transmission of power, forms a complete power transmission chain, ensures the stability of the transmission process, realizes reliable reverse power transmission, ensures the stable reverse movement of the second ice crushing blade set 3, prevents reverse interference through one-way transmission, simplifies the transmission structure, improves the transmission efficiency, reduces mechanical loss and energy consumption, and improves the reliability of the whole machine operation.

[0075] Optionally, a planetary gear set can be used to achieve reversing, and a pulley reverse drive system can also be used.

[0076] like Figure 8 As shown, in some embodiments, the reversing gear set 421 includes: a first conical wheel 4211, connected to the output end of the power unit 41; a second conical wheel 4212, coaxially arranged with the first conical wheel 4211, and the second conical wheel 4212 is connected to the input end of the first one-way transmission member 422; and a transmission conical wheel 4213, which is meshed with the first conical wheel 4211 and the second conical wheel 4212 respectively.

[0077] In the present application, the first conical wheel 4211 receives power input, the transmission conical wheel 4213 serves as an intermediate transmission member, and the second conical wheel 4212 outputs reverse power. The three conical wheels form a complete reversing transmission chain, and spatial transmission and direction change are achieved through bevel gears. It has a compact structure, high transmission efficiency, smooth operation, low noise, easy maintenance, high degree of parts standardization, reasonable spatial layout, and easy installation.

[0078] Specifically, the number of teeth of the first conical wheel 4211 may be equal to the number of teeth of the second conical wheel 4212, so that the rotation speed of the first ice-crushing blade group 2 is equal to the rotation speed of the second ice-crushing blade group 3. The number of teeth of the first conical wheel 4211 may also be greater than the number of teeth of the second conical wheel 4212, so that the rotation speed of the first ice-crushing blade group 2 is less than the rotation speed of the second ice-crushing blade group 3. The number of teeth of the first conical wheel 4211 may also be less than the number of teeth of the second conical wheel 4212, so that the rotation speed of the first ice-crushing blade group 2 is greater than the rotation speed of the second ice-crushing blade group 3.

[0079] Optionally, helical bevel gears can be used to improve meshing accuracy, and spiral bevel gears can be used to reduce operating noise.

[0080] like Fig. 9 As shown, in some embodiments, the first one-way transmission member 422 includes: a first pawl 4221, which is arranged on the second conical wheel 4212; a first ratchet 4222, which is engaged with the first pawl 4221, and when the second conical wheel 4212 rotates along the second direction, the first ratchet 4222 is used to drive the second ice crushing blade group 3 to rotate along the second direction.

[0081] In the present application, the first ratchet 4222 is directly connected to the reversing gear set 421, and the first pawl 4221 and the first ratchet 4222 form a one-way locking mechanism. The first ratchet 4222 cooperates with the first pawl 4221 to achieve one-way transmission, thereby ensuring the directionality and stability of power transmission, achieving reliable one-way power transmission, preventing reverse impact and power backflow, and providing overload protection function. The operating mechanism is simple and reliable, with low maintenance cost, long service life, strong adaptability, and stable operation.

[0082] Specifically, when the rotating shaft 411 rotates in the first direction, the first pawl 4221 is driven to rotate in the second direction through the reversing gear set 421. At this time, the first pawl 4221 is engaged with the first ratchet 4222, and the first pawl 4221 can drive the first ratchet 4222 to rotate in the second direction, so that the first ice-crushing blade set 2 and the second ice-crushing blade set 3 rotate in different directions to break ice cubes. When the rotating shaft 411 rotates in the second direction, the power of the rotating shaft 411 is transmitted to the first pawl 4221 through the reversing gear set 421, and the first pawl 4221 rotates in the first direction. At this time, the first pawl 4221 is separated from the first ratchet 4222, and the first ratchet 4222 will not drive the second ice-crushing blade set 3 to rotate in the first direction, thereby facilitating the subsequent export of ice.

[0083] In the present application, the number of the first pawl 4221 is one, and the first pawl 4221 cooperates with the first ratchet 4222, and when the first pawl 4221 rotates in the second direction, the first ratchet 4222 and the second ice-crushing blade set 3 are driven to rotate in the second direction. Optionally, multiple first pawls 4221 can be used, and the contact area is increased by designing multiple first pawls 4221 around the first ratchet 4222, so as to ensure the stability and reliability of the first pawl 4221 driving the first ratchet 4222 to rotate. The first pawl 4221 can also use an elastic pawl to improve the meshing reliability, and these solutions can be selected according to the load requirements.

[0084] like Fig. 9 As shown, in some embodiments, the first one-way transmission member 422 further includes: an active shift block 4223 connected to the first ratchet 4222; and a driven shift tooth 4224 connected to the second ice crushing blade group 3, and the driven shift tooth 4224 is engaged with the active shift block 4223.

[0085] In the present application, the active shift block 4223 and the ratchet form a first-stage transmission, and the driven shift tooth 4224 receives the movement of the active shift block 4223, realizes precise power transmission through engagement, forms a reliable graded transmission mechanism, provides more precise unidirectional transmission control, enhances transmission reliability and stability, reduces transmission system wear, reduces transmission clearance, improves accuracy, has good overload protection function, has large transmission torque, and has high efficiency.

[0086] Specifically, the first ratchet 4222 drives the active shift block 4223 to rotate, and the active shift block 4223 engages with the driven shift tooth 4224, thereby driving the driven shift tooth 4224 and the second ice-crushing blade group 3 to rotate. By setting the active shift block 4223 and the driven shift tooth 4224, it is convenient to assemble the first ratchet 4222 and the second ice-crushing blade group 3 to ensure their transmission relationship.

[0087] Optionally, the first ratchet wheel 4222 may be directly connected to the second ice-crushing blade set 3, and the first ratchet wheel 4222 directly drives the second ice-crushing blade set 3 to rotate.

[0088] In some embodiments, the driving mechanism 4 also includes a second one-way transmission member 43 connected to the output end of the power unit 41, and the second one-way transmission member 43 is connected to the second ice-crushing blade group 3. When the power unit 41 drives the first ice-crushing blade group 2 to rotate along the second direction, the second one-way transmission member 43 drives the second ice-crushing blade group 3 to rotate synchronously with the first ice-crushing blade group 2.

[0089] In the present application, the output end of the power unit 41 transmits power to the second one-way transmission member 43, the second one-way transmission member 43 is connected to the second ice crushing blade group 3, and when the power unit 41 drives the first ice crushing blade group 2 to rotate along the second direction, the reversing gear group 421 of the first transmission assembly 42 drives the first pawl 4221 to rotate along the first direction, but the first pawl 4221 will not drive the first ratchet wheel 4222 to rotate, but drives the second ice crushing blade group 3 to rotate synchronously with the first ice crushing blade group 2 through the second one-way transmission member 43. At this time, the first ice crushing blade group 2 and the second ice crushing blade group 3 both rotate in the second direction and keep the rotation speed consistent. There is no fixed knife in the ice crushing chamber, and the whole ice cubes in the ice crushing chamber will not be crushed. The ice cubes in the ice crushing chamber are only pushed to rotate by the first ice crushing blade group 2 and the second ice crushing blade group 3. When the ice cubes rotate to the ice outlet 12, the whole ice cubes are discharged through the ice outlet 12, thereby ensuring the ice outlet quality of the whole ice cubes.

[0090] Specifically, the ice crushing device in the present application includes two working modes, namely, a crushed ice output mode and a whole ice output mode.

[0091] When the ice crushing device operates in the ice crushing mode, the power unit 41 drives the rotating shaft 411 to rotate in the first direction (the first direction can be clockwise), and the rotating shaft 411 drives the first ratchet 4221 to rotate in the second direction (the second direction is counterclockwise at this time) through the reversing gear set 421. The first ratchet 4221 is in a state of engagement with the first ratchet wheel 4222, and the first ratchet 4221 can drive the first ratchet wheel 4222 to rotate in the second direction. The first ratchet wheel 4222 drives the second ice crushing blade set 3 to rotate in the second direction. The first ice crushing blade set 2 and the second ice crushing blade set 3 rotate in opposite directions. When the first ice crushing blade set 2 and the second ice crushing blade set 3 rotate in opposite directions, shear force is generated when the ice is crushed, thereby improving the efficiency and effect of crushing the ice, ensuring the quality of the crushed ice, and the scraper 33 of the second ice crushing blade set 3 can clean the crushed ice on the bottom wall of the ice crushing chamber to prevent the crushed ice from remaining at the bottom of the ice crushing chamber.

[0092] When the ice crushing device operates in the ice-smashing mode, the power unit 41 drives the rotating shaft 411 to rotate in the second direction (the second direction can be counterclockwise), and the rotating shaft 411 drives the first ratchet 4221 to rotate in the first direction (the first direction at this time is clockwise) through the reversing gear set 421. The first ratchet 4221 is in a disengaged state from the first ratchet wheel 4222, and the first ratchet wheel 4222 will not drive the second ice-smashing blade set 3 to rotate in the first direction. The rotating shaft 411 drives the second ice-smashing blade set 3 to rotate in the second direction through the second one-way transmission member 43, and rotates synchronously with the first ice-smashing blade set 2. The first ice-smashing blade set 2 and the second ice-smashing blade set 3 will not crush the whole ice cubes in the ice-smashing chamber, but only push the whole ice cubes in the ice-smashing chamber to rotate. When the whole ice cubes move to the ice outlet 12, they will be discharged through the ice outlet 12 under the action of their own gravity, so as to realize the whole ice.

[0093] like Fig.10 As shown, in some embodiments, the second one-way transmission member 43 includes a second pawl 431 and a second ratchet 432 , the second pawl 431 is connected to the output end of the power unit 41 , the second ratchet 432 is connected to the second ice crushing assembly, and the second ratchet 432 engages with the second pawl 431 .

[0094] In the present application, the second pawl 431 is connected to the rotating shaft 411 of the power unit 41. When the rotating shaft 411 rotates along the first direction, the second pawl 431 and the second ratchet 432 are in a disengaged state, and the second ratchet 432 will not drive the second ice-crushing blade group 3 to rotate along the first direction; when the rotating shaft 411 rotates along the second direction, the second pawl 431 and the second ratchet 432 are in an engaged state, and the second pawl 431 will drive the second ratchet 432 and the second ice-crushing blade group 3 to rotate along the second direction. At this time, the first ice-crushing blade group 2 and the second ice-crushing blade group 3 rotate synchronously along the second direction.

[0095] Specifically, the number of the second pawl 431 is one, and through the cooperation of the second pawl 431 and the second ratchet 432, when the second pawl 431 rotates in the second direction, the second ratchet 432 and the second ice-crushing blade set 3 can be effectively driven to rotate in the second direction. Optionally, the number of the second pawl 431 is more than one, and the second pawl 431 is arranged around the second ratchet 432 to increase the contact area with the second ratchet 432, thereby ensuring the reliability of the engagement. Of course, the second pawl 431 adopts an elastic pawl to ensure the effective engagement of the second pawl 431 and the second ratchet 432.

[0096] The ice crushing device in the present application includes two working modes, namely, a crushed ice output mode and a whole ice output mode.

[0097] When the ice crushing device operates in the ice crushing mode, the power unit 41 drives the rotating shaft 411 to rotate in the first direction (the first direction can be clockwise), and the rotating shaft 411 drives the first ratchet 4221 to rotate in the second direction (the second direction is counterclockwise at this time) through the reversing gear set 421. The first ratchet 4221 is in a state of engagement with the first ratchet wheel 4222, and the first ratchet 4221 can drive the first ratchet wheel 4222 to rotate in the second direction. The first ratchet wheel 4222 drives the second ice crushing blade set 3 to rotate in the second direction. The first ice crushing blade set 2 and the second ice crushing blade set 3 rotate in opposite directions. When the first ice crushing blade set 2 and the second ice crushing blade set 3 rotate in opposite directions, shear force is generated when the ice is crushed, thereby improving the efficiency and effect of crushing the ice, ensuring the quality of the crushed ice, and the scraper 33 of the second ice crushing blade set 3 can clean the crushed ice on the bottom wall of the ice crushing chamber to prevent the crushed ice from remaining at the bottom of the ice crushing chamber. At this time, the second pawl 431 rotates along the first direction with the rotating shaft 411 , but the second pawl 431 is disengaged from the second ratchet wheel 432 , so the second pawl 431 will not drive the second ice-crushing blade set 3 to rotate along the first direction.

[0098] When the ice crushing device operates in the ice-smashing mode, the power unit 41 drives the rotating shaft 411 to rotate in the second direction (the second direction can be counterclockwise), and the rotating shaft 411 drives the first ratchet 4221 to rotate in the first direction (the first direction at this time is clockwise) through the reversing gear set 421. The first ratchet 4221 is in a disengaged state from the first ratchet wheel 4222, and the first ratchet wheel 4222 will not drive the second ice-smashing blade set 3 to rotate in the first direction. The rotating shaft 411 drives the second ice-smashing blade set 3 to rotate in the second direction through the second one-way transmission member 43, and rotates synchronously with the first ice-smashing blade set 2. The first ice-smashing blade set 2 and the second ice-smashing blade set 3 will not crush the whole ice cubes in the ice-smashing chamber, but only push the whole ice cubes in the ice-smashing chamber to rotate. When the whole ice cubes move to the ice outlet 12, they will be discharged through the ice outlet 12 under the action of their own gravity, so as to realize the whole ice. At this time, the second pawl 431 rotates in the second direction, the second pawl 431 engages with the second ratchet 432, and drives the second ratchet 432 and the second ice-crushing blade group 3 to rotate in the second direction, so that the first ice-crushing blade group 2 and the second ice-crushing blade group 3 rotate synchronously in the same direction, and the ice cubes will not be crushed, so as to produce whole ice.

[0099] Specifically, the first blade 21 of the first ice-crushing blade group 2 is provided with blade teeth on the side facing the first direction, and the second blade 31 of the second ice-crushing blade group 3 is provided with blade teeth on the side facing the second direction. When the ice-crushing device operates in the ice-crushing mode, the first ice-crushing blade group 2 rotates in the first direction, and the second ice-crushing blade group 3 rotates in the second direction, so that the blade teeth of the first ice-crushing blade group 2 and the blade teeth of the second ice-crushing blade group 3 can crush ice cubes. When the ice-crushing device operates in the ice-smoothing mode, the first ice-crushing blade group 2 rotates in the second direction, and the second ice-crushing blade group 3 also rotates in the second direction, and the rotation speed is consistent with that of the first ice-crushing blade group 2, so that the whole ice cubes will not be crushed. Specifically, by only providing blade teeth on one side of the first ice-crushing blade group 2 and the second ice-crushing blade group 3, processing costs are saved, and the situation of ice cubes being crushed is reduced when producing whole ice. When the ice crushing device operates in the ice crushing mode, the power unit 41 rotates at a higher speed to ensure the ice is crushed; and when the ice crushing device operates in the ice-storing mode, the power unit 41 rotates at a slower speed to avoid crushing the whole ice and ensure that the whole ice can be smoothly exported.

[0100] The ice crushing device drives the first ice crushing blade group 2 to rotate in a first direction through the power unit 41, and converts the power into reverse output through the first transmission assembly 42. The second ice crushing blade group 3 rotates in a second direction under the reverse drive and forms a shear force with the first ice crushing blade group 2. The reverse movement of the first ice crushing blade group 2 and the second ice crushing blade group 3 generates a larger ice crushing torque, which can fully crush the ice cubes and improve the quality of ice crushing.

[0101] An embodiment of the present application provides an ice maker, comprising: the above-mentioned ice crushing device; and an ice storage box, wherein the ice storage box has an ice cube outlet, and the ice cube outlet is connected to an ice inlet 11 of the ice crushing device.

[0102] In the present application, the ice storage box is used to provide whole ice cubes, and the whole ice cubes are introduced into the ice crushing chamber through the ice cube outlet and the ice inlet 11. When the whole ice cubes need to be discharged, that is, the ice crushing device runs in the whole ice mode, and the whole ice cubes in the ice crushing chamber are directly pushed out through the ice outlet 12; when the crushed ice needs to be discharged, that is, the ice crushing device runs in the crushed ice mode, and the crushed ice in the ice crushing chamber is discharged through the ice outlet 12. When discharging the crushed ice, the first ice crushing knife group 2 and the second ice crushing knife group 3 rotating in opposite directions form a shear force, and the ice cubes are fully crushed, thereby improving the quality of the crushed ice and the efficiency of the crushed ice. When discharging the whole ice, the first ice crushing knife group 2 and the second ice crushing knife group 3 rotate synchronously, and there is no fixed knife in the ice crushing chamber that hinders the whole ice, thereby ensuring the integrity of the whole ice cubes, thereby improving the quality of the whole ice.

[0103] An embodiment of the present application provides a refrigerator, comprising the above-mentioned ice maker.

[0104] In the present application, currently high-end refrigerators generally have the function of making ice, and can provide whole ice cubes or crushed ice according to user needs. The refrigerator in the present application can effectively improve the quality of ice output by adopting the above-mentioned ice maker.

[0105] The refrigerator is provided with a control screen, through which the ice crushing device is controlled to operate in the crushed ice mode or the whole ice mode.

[0106] When the ice crushing device operates in the ice crushing mode, the power unit 41 drives the rotating shaft 411 to rotate in the first direction (the first direction can be clockwise), and the rotating shaft 411 drives the first ratchet 4221 to rotate in the second direction (the second direction is counterclockwise at this time) through the reversing gear set 421. The first ratchet 4221 is in a state of engagement with the first ratchet wheel 4222, and the first ratchet 4221 can drive the first ratchet wheel 4222 to rotate in the second direction. The first ratchet wheel 4222 drives the second ice crushing blade set 3 to rotate in the second direction. The first ice crushing blade set 2 and the second ice crushing blade set 3 rotate in opposite directions. When the first ice crushing blade set 2 and the second ice crushing blade set 3 rotate in opposite directions, shear force is generated when the ice is crushed, thereby improving the efficiency and effect of crushing the ice, ensuring the quality of the crushed ice, and the scraper 33 of the second ice crushing blade set 3 can clean the crushed ice on the bottom wall of the ice crushing chamber to prevent the crushed ice from remaining at the bottom of the ice crushing chamber. At this time, the second pawl 431 rotates along the first direction with the rotating shaft 411 , but the second pawl 431 is disengaged from the second ratchet wheel 432 , so the second pawl 431 will not drive the second ice-crushing blade set 3 to rotate along the first direction.

[0107] When the ice crushing device operates in the ice-smashing mode, the power unit 41 drives the rotating shaft 411 to rotate in the second direction (the second direction can be counterclockwise), and the rotating shaft 411 drives the first ratchet 4221 to rotate in the first direction (the first direction at this time is clockwise) through the reversing gear set 421. The first ratchet 4221 is in a disengaged state from the first ratchet wheel 4222, and the first ratchet wheel 4222 will not drive the second ice-smashing blade set 3 to rotate in the first direction. The rotating shaft 411 drives the second ice-smashing blade set 3 to rotate in the second direction through the second one-way transmission member 43, and rotates synchronously with the first ice-smashing blade set 2. The first ice-smashing blade set 2 and the second ice-smashing blade set 3 will not crush the whole ice cubes in the ice-smashing chamber, but only push the whole ice cubes in the ice-smashing chamber to rotate. When the whole ice cubes move to the ice outlet 12, they will be discharged through the ice outlet 12 under the action of their own gravity, so as to realize the whole ice. At this time, the second pawl 431 rotates in the second direction, the second pawl 431 engages with the second ratchet 432, and drives the second ratchet 432 and the second ice-crushing blade group 3 to rotate in the second direction, so that the first ice-crushing blade group 2 and the second ice-crushing blade group 3 rotate synchronously in the same direction, and the ice cubes will not be crushed, so as to produce whole ice.

[0108] The present application also provides an electrical device, which includes the above-mentioned ice maker. The electrical device may be a freezer.

[0109] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0110] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0111] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An ice crushing device, characterized in that: include: A housing (1) having an ice crushing chamber and an ice inlet (11) and an ice outlet (12) communicated with the ice crushing chamber; A first ice crushing blade group (2) rotatably arranged in the ice crushing chamber; A second ice crushing blade group (3) is rotatably arranged in the ice crushing chamber; A driving mechanism (4) is arranged on the housing (1), the driving mechanism (4) comprising a power unit (41) and a first transmission assembly (42), the output end of the power unit (41) is connected to the first ice-crushing blade group (2), the input end of the first transmission assembly (42) is connected to the output end of the power unit (41), and the output end of the first transmission assembly (42) is connected to the second ice-crushing blade group (3); When the power unit (41) drives the first ice-crushing blade group (2) to rotate in a first direction, the first transmission assembly (42) drives the second ice-crushing blade group (3) to rotate in a second direction, and the first direction is opposite to the second direction.

2. The ice crushing device according to claim 1, characterized in that: The first ice crushing blade group (2) comprises a plurality of groups of first blades (21), and the second ice crushing blade group (3) comprises a plurality of groups of second blades (31), wherein the plurality of groups of the first blades (21) and the plurality of groups of the second blades (31) are arranged alternately along the axial direction of the housing (1).

3. The ice crushing device according to claim 2, characterized in that: The output end of the power unit (41) is provided with a rotating shaft (411), and a plurality of groups of the first blades (21) are arranged on the outer peripheral side of the rotating shaft (411); The second ice crushing blade group (3) further comprises a cylinder (32), wherein the cylinder (32) is coaxially arranged with the rotating shaft (411), the cylinder (32) is connected to the output end of the first transmission assembly (42), and a plurality of groups of the second blades (31) are arranged on the inner surface of the cylinder (32).

4. The ice crushing device according to claim 3, characterized in that: A positioning hole (311) is provided in the middle of the second blade (31) for the rotating shaft (411) to pass through.

5. The ice crushing device according to claim 3, characterized in that: The second ice crushing blade group (3) also includes a scraper (33) arranged on the inner surface of the cylinder (32), and the scraper (33) abuts against the inner bottom wall of the ice crushing chamber to push the crushed ice on the inner bottom wall of the ice crushing chamber to the ice outlet (12).

6. The ice crushing device according to claim 1, characterized in that: The first transmission assembly (42) comprises: a reversing gear set (421), wherein an input end of the reversing gear set (421) is connected to an output end of the power unit (41), and a rotation direction of the output end of the reversing gear set (421) is opposite to a rotation direction of the output end of the power unit (41); and A first one-way transmission member (422), wherein the input end of the first one-way transmission member (422) is connected to the output end of the reversing gear set (421), and the output end of the first one-way transmission member (422) is connected to the second ice-crushing blade set (3).

7. The ice crushing device according to claim 6, characterized in that: The reversing gear set (421) comprises: A first conical wheel (4211) connected to an output end of the power unit (41); a second conical wheel (4212) coaxially arranged with the first conical wheel (4211), the second conical wheel (4212) being connected to an input end of the first one-way transmission member (422); and A transmission conical wheel (4213), wherein the transmission conical wheel (4213) is respectively meshed with the first conical wheel (4211) and the second conical wheel (4212).

8. The ice crushing device according to claim 7, characterized in that: The first one-way transmission member (422) comprises: A first pawl (4221), arranged on the second conical wheel (4212); The first ratchet wheel (4222) is engaged with the first ratchet pawl (4221), and when the second conical wheel (4212) rotates along the second direction, the first ratchet wheel (4222) is used to drive the second ice crushing blade group (3) to rotate along the second direction.

9. The ice crushing device according to claim 8, characterized in that: The first one-way transmission member (422) further comprises: an active shifting block (4223), connected to the first ratchet wheel (4222); and The driven shifting tooth (4224) is connected to the second ice crushing blade group (3), and the driven shifting tooth (4224) is engaged with the active shifting block (4223).

10. The ice crushing device according to claim 6, characterized in that: The driving mechanism (4) further comprises a second one-way transmission member (43) connected to the output end of the power unit (41), the second one-way transmission member (43) being connected to the second ice-crushing blade group (3), and when the power unit (41) drives the first ice-crushing blade group (2) to rotate along the second direction, the second one-way transmission member (43) drives the second ice-crushing blade group (3) to rotate synchronously with the first ice-crushing blade group (2).

11. The ice crushing device according to claim 10, characterized in that: The second one-way transmission member (43) comprises a second pawl (431) and a second ratchet (432); the second pawl (431) is connected to the output end of the power unit (41); the second ratchet (432) is connected to the second ice crushing assembly; the second ratchet (432) is engaged with the second pawl (431).

12. An ice making machine, characterized in that: include: The ice crushing device according to any one of claims 1 to 11; as well as An ice storage box is provided with an ice cube outlet, wherein the ice cube outlet is connected to an ice inlet (11) of the ice crushing device.

13. A refrigerator, characterized in that: Comprising the ice making machine as claimed in claim 12.

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