Food processing apparatus

Abstract

The application discloses a food processing device, and relates to the technical field of food processing, wherein the food processing device comprises a shell assembly, a food containing barrel, a shaft sleeve assembly, a temperature detection assembly, a driving assembly and a refrigeration assembly; the food containing barrel is arranged in the shell assembly to contain food; the shaft sleeve assembly is arranged in the food containing barrel, and an outer side of the shaft sleeve assembly is provided with a stirring assembly; the temperature detection assembly is arranged in the shaft sleeve assembly to detect the temperature of the food containing barrel; the driving assembly is arranged in the shell assembly, a driving shaft of the driving assembly is arranged in the food containing barrel, and the shaft sleeve assembly is arranged on the driving shaft; and the refrigeration assembly comprises a refrigeration part for refrigerating the food containing barrel. The technical scheme provided by the application aims to increase the accuracy of temperature detection of the food processing device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of food processing, in particular to a food processing device. BACKGROUND

[0002] In food processing devices, especially temperature-controlled devices such as ice cream machines, a temperature sensor is usually provided to detect the temperature of food in a food containing barrel. However, in conventional food processing devices, the temperature sensor is installed on the outer wall of the food containing barrel. Since the temperature sensor is separated from the food by a metal wall and does not fully contact the food containing barrel, the temperature detected by the temperature sensor cannot accurately represent the temperature of the food. SUMMARY

[0003] The present application provides a food processing device, which can make the temperature detected by the temperature detection assembly of the food processing device more accurately represent the temperature of the food.

[0004] To achieve the above-mentioned purpose, the food processing device provided by the present application comprises:

[0005] a housing assembly;

[0006] a food containing barrel arranged in the housing assembly for containing food;

[0007] a shaft sleeve assembly arranged in the food containing barrel, the outer side of the shaft sleeve assembly being provided with a stirring assembly;

[0008] a temperature detection assembly arranged in the shaft sleeve assembly for detecting the temperature of the food containing barrel;

[0009] a drive assembly arranged in the housing assembly, a drive shaft of the drive assembly being arranged in the food containing barrel, and the shaft sleeve assembly being sleeved on the drive shaft;

[0010] a refrigeration assembly comprising a refrigeration part for refrigerating the food containing barrel.

[0011] In an embodiment, the shaft sleeve assembly comprises a lower bearing and a shaft sleeve, the shaft sleeve being fixed to the food containing barrel at a position close to the drive assembly, the lower bearing being arranged in the shaft sleeve, the drive shaft being arranged in the lower bearing, and the temperature detection assembly being arranged between the lower bearing and the shaft sleeve.

[0012] In an embodiment, the shaft sleeve is provided with an inner cut groove on a side corresponding to the lower bearing, the lower bearing is provided with an outer cut groove at a position corresponding to the inner cut groove, and a containing cavity is formed between the inner cut groove and the outer cut groove, and the temperature detection assembly is arranged in the containing cavity.

[0013] In an embodiment, the inner cutting groove is provided with a heat-conducting layer, the outer cutting groove is provided with a buffer layer, and the temperature detection assembly is arranged between the heat-conducting layer and the buffer layer and is attached to the heat-conducting layer and the buffer layer.

[0014] In an embodiment, the lower bearing includes a body and a mounting rib, the body is cylindrical, the mounting rib is arranged at one end of the body, the mounting rib is arranged to extend in a direction parallel to the axial direction of the body, and is spaced apart from the shaft hole of the body by a predetermined distance.

[0015] The outer cutting groove is arranged on the body and extends away from one end of the body along the mounting rib.

[0016] In an embodiment, the stirring assembly includes a transmission sleeve and a stirring piece arranged on the transmission sleeve, the transmission sleeve is sleeved on the shaft sleeve, and the transmission sleeve has a first polygonal through hole;

[0017] The driving shaft has a circular segment and a polygonal segment, the circular segment is arranged in the shaft sleeve, the polygonal segment is arranged in the first polygonal through hole of the transmission sleeve, the polygonal segment is adapted to the shape of the first polygonal through hole, so that the driving shaft drives the transmission sleeve to move.

[0018] In an embodiment, the shaft sleeve assembly further includes an end cover, the end cover has a cover body and a first extension body, the cover body has a second polygonal through hole with the same size as the first polygonal through hole, the cover body is arranged on the port of the shaft sleeve, the first extension body is arranged on the side of the cover body facing the shaft sleeve, and the transmission sleeve is arranged on the cover body.

[0019] The diameter of the circular segment is not less than the diameter of the polygonal segment, the polygonal segment of the driving shaft is arranged in the first polygonal through hole and the second polygonal through hole, and the first extension body of the end cover abuts against the end face of the circular segment, so as to axially limit the driving shaft.

[0020] In an embodiment, the inner wall of the shaft sleeve is provided with a first limiting portion and a second limiting portion;

[0021] The first limiting portion is used for abutting against one end of the lower bearing corresponding to the inner wall of the food containing barrel away from the food containing barrel, so as to axially limit the lower bearing;

[0022] The shaft sleeve assembly further includes an oil sealing piece, the end cover further includes a second extension body arranged close to the edge of the end cover relative to the first extension body, the oil sealing piece is arranged at the end of the second extension body, and the second limiting portion is used for abutting against the oil sealing piece, so as to limit the oil sealing piece.

[0023] In an embodiment, the driving shaft is further provided with a cutting groove, and the cutting groove is provided with a limiting clamping piece;

[0024] The limiting clamping piece is used for abutting against an end of the lower bearing away from the first limiting part when the first limiting part abuts against the lower bearing.

[0025] In an embodiment, the shell assembly comprises a first end plate, a second end plate, a partition plate and a surrounding plate, the partition plate is fixed in the surrounding plate, and the partition plate divides a space formed by the surrounding plate into a first accommodating space and a second accommodating space arranged in a vertical direction;

[0026] The first end plate is arranged at an end of the surrounding plate close to the first accommodating space, and the second end plate is arranged at an end of the surrounding plate close to the second accommodating space;

[0027] The first end plate comprises a first flat plate part and a first recess part located at a middle position of the first flat plate part, and the first recess part constitutes the food accommodating barrel;

[0028] The food accommodating barrel is arranged at a side of the partition plate corresponding to the first accommodating space, the driving assembly is arranged at a side of the partition plate corresponding to the second accommodating space, the partition plate is provided with a first through hole, and a driving shaft of the driving assembly passes through the first through hole and is arranged in the food accommodating barrel.

[0029] In an embodiment, the food processing device further comprises a foaming shell, the foaming shell is arranged at a side of the partition plate close to the first accommodating space, the foaming shell is arranged outside the food accommodating barrel to form a closed foaming accommodating space between the foaming shell and the food accommodating barrel, and the foaming accommodating space is used for accommodating foaming materials;

[0030] The foaming shell is provided with a second through hole, the first through hole and the second through hole are coaxially arranged, and the driving shaft of the driving assembly passes through the first through hole and the second through hole and is arranged in the food accommodating barrel.

[0031] In an embodiment, the shell assembly further comprises a third accommodating space, and the first accommodating space, the second accommodating space and the third accommodating space are arranged in a vertical direction;

[0032] The refrigeration part is an evaporator, the refrigeration assembly further comprises a condenser, a compressor, a first connecting pipe and a second connecting pipe, the condenser and the compressor are arranged in the third accommodating space, the evaporator is arranged around the outside of the food accommodating barrel, the partition plate has a first connecting hole and a second connecting hole, the foaming shell has a third connecting hole and a fourth connecting hole; one end of the first connecting pipe is connected to the compressor, the other end of the first connecting pipe is connected to the first end of the evaporator through the first connecting hole and the third connecting hole; one end of the second connecting pipe is connected to the condenser, the other end of the second connecting pipe is connected to the second end of the evaporator through the second connecting hole and the fourth connecting hole.

[0033] In an embodiment, the foaming shell has a first sleeve and a second sleeve arranged corresponding to the second through hole, the first sleeve is arranged extending towards the food accommodating barrel, and the second sleeve is arranged extending towards the partition plate;

[0034] The driving shaft of the driving assembly is arranged in the food accommodating barrel through the first through hole, the second sleeve, the second through hole and the first sleeve in sequence;

[0035] The first sleeve is provided with a first lead port corresponding to one end close to the temperature detection assembly, the outer side of the second sleeve is provided with a second lead port, and the first lead port and the second lead port are arranged in communication for leading out the signal line of the temperature detection assembly.

[0036] In an embodiment, the driving assembly further comprises:

[0037] A driving motor, the driving motor is arranged on one side of the partition plate corresponding to the second accommodating space;

[0038] A speed reducer, the speed reducer is arranged on one side of the partition plate corresponding to the second accommodating space, and the speed reducer is connected to the output end of the driving motor;

[0039] A coupling, the coupling is arranged in the first sleeve and the second sleeve, one end of the coupling is connected to the driving end of the speed reducer, and the other end of the coupling is connected to one end of the driving shaft.

[0040] In summary, the food processing device and the shell assembly, the food containing barrel, the shaft sleeve assembly, the temperature detection assembly and the refrigeration assembly thereof are provided. The shell assembly is used as an overall support structure for mounting and fixing various functional modules. The food containing barrel is arranged in the shell assembly for containing food to be processed. The driving assembly is arranged inside the shell, and the driving shaft thereof extends upward and penetrates the bottom of the food containing barrel. The shaft sleeve assembly is fixed to the central axis of the food containing barrel, is sleeved on the driving shaft, and is used as a mounting base of the stirring assembly. The temperature detection assembly is integrated in the shaft sleeve assembly to realize temperature measurement. The refrigeration assembly is arranged around the food containing barrel to provide continuous and stable cold output. In the present application, the temperature detection assembly is integrated in the shaft sleeve assembly to directly contact the internal environment of the food containing barrel, eliminate the hysteresis effect of traditional indirect temperature measurement, and also fully contact the food, so that the temperature signal output by the temperature detection assembly can more accurately represent the temperature of the food. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of the drawings shown.

[0042] Figure 1 Structure schematic view of an embodiment of the food processing device provided by the present application;

[0043] Figure 2 Structure schematic view of another embodiment of the food processing device provided by the present application;

[0044] Figure 3 Structure schematic view of still another embodiment of the food processing device provided by the present application;

[0045] Figure 4 Structure schematic view of the Figure 3 Cross-sectional view of A-A in FIG. 1;

[0046] Figure 5 Structure schematic view of the Figure 4 Local enlarged view of B in FIG. 1;

[0047] Figure 6 Structure schematic view of an embodiment of the stirring assembly, the driving assembly and the shaft sleeve assembly;

[0048] Figure 7 Structure schematic view of the Figure 6 Cross-sectional view of D-D in FIG. 1;

[0049] Figure 8 Structure schematic view of the Figure 6 Cross-sectional view of E-E in FIG. 1;

[0050] Figure 9 Structure diagram of an embodiment of the lower bearing;

[0051] Figure 10 Structure diagram of an embodiment of the shaft sleeve;

[0052] Figure 11 Structure diagram of still another embodiment of the stirring assembly, the driving assembly and the shaft sleeve assembly.

[0053] Brief Description of the Drawings:

[0054] 100, housing assembly; 111, first accommodating space; 112, second accommodating space; 113, third accommodating space; 121, first end plate; 1211, first flat plate part; 1212, first recessed part; 122, second end plate; 123, partition plate; 124, enclosing plate; 131, support beam; 200, food accommodating barrel; 300, stirring assembly; 310, transmission sleeve; 320, stirring piece; 400, driving assembly; 410, driving shaft; 411, circular segment; 412, polygonal segment; 413, cutting groove; 414, threaded segment; 420, driving motor; 430, speed reducer; 440, shaft coupling; 450, electric control box; 500, refrigeration assembly; 510, evaporator; 520, condenser; 530, compressor; 540, heat dissipation fan; 600, foaming shell; 610, first sleeve; 620, second sleeve; 631, wiring groove; 632, wire pressing piece; 633, limiting rib; 700, shaft sleeve assembly; 710, lower bearing; 711, outer cutting groove; 712, body; 713, mounting rib; 714, positioning rib; 715, end cover; 7151, cover body; 7152, first extension body; 7153, second extension body; 720, shaft sleeve; 721, inner cutting groove; 722, positioning groove; 723, first limiting part; 724, second limiting part; 730, oil sealing piece; 740, nut; 800, temperature detection assembly; 810, signal line; 910, heat conduction layer; 920, buffer layer; 930, limiting clamping piece.

[0055] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0057] It should be noted that if the application embodiments involve directionality indications (such as up, down, left, right, front, back, etc.), the directionality indications are only used to explain the relative position relationship, motion condition, etc. between components in a certain posture, and if the certain posture changes, the directionality indications also change accordingly.

[0058] In addition, if the application embodiments involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes include A scheme, or B scheme, or A and B schemes are satisfied at the same time. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed in the present application.

[0059] In food processing equipment, especially temperature-controlled equipment such as ice cream machines, a temperature sensor is usually provided to detect the temperature of the food in the food containing barrel. However, in traditional food processing equipment, the temperature sensor is installed on the outer wall of the food containing barrel. Due to the metal wall barrier between the temperature sensor and the food, and the temperature sensor does not contact the food containing barrel in all directions, the final detected temperature cannot accurately represent the temperature of the food.

[0060] In the case of ice cream machine as the food processing equipment, inaccurate temperature detection may cause the control of the refrigeration system to be inaccurate, thereby affecting the freezing effect and texture uniformity of the food such as ice cream. For example, when the actual food temperature has not yet reached the set value but the sensor shows that it has reached the standard, the equipment may stop refrigeration or end stirring in advance, resulting in soft product taste and loose structure; on the contrary, it may cause excessive freezing, affecting the discharge efficiency and user experience.

[0061] In order to solve the above problems, the designer found that the traditional indirect temperature measurement mode cannot eliminate the thermal resistance caused by the metal wall, resulting in temperature feedback delay. After many experimental verifications, it is found that integrating the temperature sensor into the support structure of the rotating part can realize direct contact type temperature measurement and avoid the hygiene hazards of exposed structure. Further research shows that the shaft sleeve assembly, as the connection carrier of the driving shaft and the stirring assembly, has the feasibility of arranging the sensor in the internal space.

[0062] In this regard, in an embodiment, as Figure 1 , Figure 2, and Figures 4 to 7 As shown in FIG. 1, the food processing device comprises a housing assembly 100, a food containing barrel 200, a shaft sleeve assembly 700, a temperature detection assembly 800, a driving assembly 400 and a refrigeration assembly 500.

[0063] In the embodiment, the housing assembly 100 refers to an external support structure for carrying various functional modules of the device, which can be realized by combining a metal frame and a plastic shell to form the main structure of the device. Alternatively, the housing assembly 100 is made of metal material, which can be formed as a cabinet body or a cylinder, and the specific material and shape are not limited here. It should be noted that the top end of the housing assembly 100 has an opening, which can be an opening on the top plate or a directly hollowed top, for the opening of the food containing barrel 200 to face upwards.

[0064] In the embodiment, the food containing barrel 200 is arranged in the housing assembly 100 for containing food. Alternatively, the food containing barrel 200 is made of stainless steel material and has a cylindrical shape, and the bottom is provided with a driving hole for the driving shaft 410 of the driving assembly 400 to pass through. The food containing barrel 200 is installed in the first containing space 111 for containing food materials to be processed.

[0065] In a feasible implementation manner, as shown in FIG. 2 and FIG. 3, the food containing barrel 200 is arranged in the housing assembly 100, and the top plate of the housing assembly 100 is provided with a recess for the food containing barrel 200. Figure 3 and Figure 4 As shown in FIG. 2 and FIG. 3, the food containing barrel 200 can be arranged integrally with the housing assembly 100, that is, the top plate of the housing assembly 100 is provided with a recess for the food containing barrel 200.

[0066] In the embodiment, the shaft sleeve assembly 700 is arranged in the food containing barrel 200, and the outer side of the shaft sleeve assembly 700 is provided with a stirring assembly 300. The shaft sleeve assembly 700 is arranged coaxially with the driving shaft 410 of the driving assembly 400 for sleeving the driving shaft 410.

[0067] Alternatively, the stirring assembly 300 comprises stirring blades which can be driven by the driving shaft 410 of the driving assembly 400 to move and stir the food in the food containing barrel 200.

[0068] In the embodiment, the temperature detection assembly 800 is arranged in the shaft sleeve assembly 700 for detecting the temperature of the food containing barrel 200. It can be understood that the temperature detection assembly 800 refers to a sensor device for sensing the temperature change of the food, which can be realized by using a patch type thermistor with a heat conducting medium to directly contact the inner wall of the shaft sleeve assembly 700 to obtain real-time temperature data.

[0069] A drive assembly 400 is arranged in the housing assembly 100, a drive shaft 410 of the drive assembly 400 penetrates the food containing barrel 200, and the shaft sleeve assembly 700 is sleeved on the drive shaft 410. It can be understood that the specific implementation mode of the drive assembly 400 can adopt the form of a drive electrode and a speed reducer 430, and the drive shaft 410 of the speed reducer 430 penetrates the food containing barrel 200.

[0070] Optionally, the bottom of the food containing barrel 200 has a through hole for the drive shaft 410 to penetrate, the shaft sleeve assembly 700 can be arranged in the through hole, and the shaft hole of the shaft sleeve assembly 700 is arranged in alignment with the through hole for the drive shaft 410 to penetrate.

[0071] Optionally, the shaft sleeve assembly 700 can be fixed to the bottom of the food containing barrel 200 by welding, riveting or threaded connection, forming a non-rotatable whole structure. In this scheme, the shaft sleeve assembly 700 itself does not rotate with the drive shaft 410, and the stirring assembly 300 is connected with the shaft sleeve assembly 700 through a bearing or a universal joint to realize independent rotation. Since the temperature detection assembly 800 is fixed in the stationary shaft sleeve 720, the signal line 810 can be directly led out to the control system without the need for complex rotating conductive devices, simplifying the electrical connection and improving the reliability.

[0072] In the embodiment, the refrigeration assembly 500 is used for the refrigeration part of the food containing barrel 200. Optionally, the control system can dynamically adjust the operating frequency of the compressor 530 or the refrigerant flow according to the actual food temperature fed back by the temperature detection assembly 800, to realize accurate temperature control. Some models also support multiple working modes such as pre-cooling, quick freezing, soft / hard ice cream switching, etc., to meet diversified processing needs.

[0073] In a feasible implementation mode, the food containing barrel 200 is fixed in the housing assembly 100 to form a processing space, and the shaft sleeve assembly 700 is arranged at the center position of the barrel body bottom. The drive shaft 410 penetrates the center hole of the shaft sleeve assembly 700 and is connected with the stirring assembly 300, and drives the stirring part 320 to rotate under the drive of the motor. The temperature detection assembly 800 is embedded in the interlayer structure of the shaft sleeve assembly 700, and the food temperature in the barrel is transmitted to the sensor through the heat-conducting material. The refrigeration assembly 500 adjusts the refrigeration power according to the temperature detection signal. When the food temperature reaches the set threshold value, the control system automatically adjusts the refrigeration intensity to ensure that the food is in the optimal processing temperature range.

[0074] It should be noted that in some exemplary food processing devices, the temperature detection assembly is usually arranged on the outer wall surface or the outer layer of the food containing barrel, and there is a heat conduction barrier of the metal barrel wall between the temperature detection assembly and the internal food. Due to the thermal resistance of the metal material itself, and the heat transfer process needs to pass through multiple media such as the food containing barrel, air layer (or insulation layer) and the like in turn, the heat transfer efficiency is low, and the temperature response is seriously delayed. Especially in the rapid cooling or phase change process (such as the freezing stage of ice cream), there may be a time delay of several seconds or even tens of seconds between the actual temperature of the food and the detection value of the temperature detection assembly, causing the control system to misjudge and affecting the texture and consistency of the final product. Therefore, in the present application, the temperature detection assembly 800 is integrated inside the shaft sleeve assembly 700, so that it is directly heat-coupled with the food in the stirring area through the heat conduction structure of the shaft sleeve 720, thereby fundamentally eliminating the thermal resistance problem caused by the metal wall surface, significantly improving the real-time and accuracy of temperature measurement, and realizing rapid response and precise closed-loop control of the temperature change of the food.

[0075] It should also be noted that in some exemplary food processing devices, the temperature detection assembly is usually installed on one side of the outer wall of the food containing barrel, and the temperature sensing surface thereof is only in contact with the local area of the barrel body and exposed outwardly away from the food, resulting in single temperature measurement point, uneven heating, and inability to reflect the overall temperature distribution state of the food in the barrel. Especially in the case of insufficient stirring or temperature gradient, the temperature measured at this position is easy to deviate from the average temperature of the food, causing control deviation. In addition, since the sensor only contacts the barrel wall from one side, the heat transfer path is asymmetric, further aggravating the non-representative temperature measurement. In the present application, the temperature detection assembly 800 is arranged on the shaft sleeve assembly 700 inside the food containing barrel 200, so that it rotates with the stirring structure and is surrounded by the food, which can realize 360-degree full-range direct contact with the food and fully perceive the temperature change in all directions in the barrel. This design not only improves the spatial representativeness of temperature measurement, but also effectively avoids measurement errors caused by local overheating or overcooling through continuous heat exchange in the dynamic stirring environment.

[0076] It is also worth noting that some existing food processing equipment uses metal-encased NTC sensors, which directly measure temperature by ejecting the temperature probe from the tank wall or bottom and extending it into the tank. This structure requires a clearance for movement, which can easily lead to moisture and material seepage during cleaning, causing bacterial growth or malfunctions, posing hygiene and reliability risks. Furthermore, the exposed probe occupies the stirring space and may interfere with the stirring blades, causing vibration or wear, affecting the stability of the equipment. In contrast, this application places the temperature detection component 800 on the bushing assembly 700 inside the food container 200, with no parts exposed within the stirring area of ​​the food container 200. The sensor is in close contact with the bushing 720 through a heat-conducting structure, using the bushing 720 as a heat transfer medium to achieve real-time sensing of the material temperature. This design eliminates the need for a moving probe, removing assembly gaps and unsanitary areas, facilitating cleaning and maintenance, and avoiding interference with the stirring flow field, ensuring stable operation.

[0077] In summary, this application provides a food processing device and its housing assembly 100, food container 200, bushing assembly 700, temperature detection assembly 800, and refrigeration assembly 500. The housing assembly 100 serves as an overall support structure for mounting and securing the various functional modules. The food container 200 is housed within the housing assembly 100 and is used to hold the food to be processed. The drive assembly 400 is located inside the housing, with its drive shaft 410 extending upwards and passing through the bottom of the food container 200. The bushing assembly 700 is fixed to the central axis of the food container 200, sleeved on the drive shaft 410, and serves as a mounting base for the stirring assembly 300. The temperature detection assembly 800 is integrated inside the bushing assembly 700 for temperature measurement. The refrigeration assembly 500 surrounds the food container 200 to provide a continuous and stable cooling output. In this application, by integrating the temperature detection component 800 inside the bushing assembly 700, it directly contacts the internal environment of the food container 200, eliminating the hysteresis effect of traditional indirect temperature measurement. At the same time, it can also contact the food from all directions, so that the temperature signal output by the temperature detection component 800 can more accurately represent the temperature of the food.

[0078] In one embodiment, such as Figures 3 to 7 As shown, the bushing assembly 700 includes a lower bearing 710 and a bushing 720. The bushing 720 is fixed to the food container 200 near the drive assembly 400. The lower bearing 710 is disposed inside the bushing 720. The drive shaft 410 passes through the lower bearing 710. The temperature detection assembly 800 is disposed between the lower bearing 710 and the bushing 720.

[0079] The bushing 720 is an annular support component fixedly installed at the bottom of the food container 200. It can be made of stainless steel or engineering plastic and serves to provide a mounting base for the lower bearing 710 and isolate it from the external environment. The lower bearing 710 is a bearing assembled inside the bushing 720. It can be made of POM material and serves to support the drive shaft 410 and reduce rotational friction.

[0080] The drive shaft 410 refers to the transmission component that connects the drive assembly 400 and the stirring assembly 300. The temperature detection assembly 800 refers to a sensor module used to sense temperature changes inside the food container 200. Specifically, it can be a surface-mount thermistor or a thermocouple, which can be embedded to achieve direct contact temperature measurement.

[0081] In one feasible embodiment, the bushing 720 is fixed to the bottom of the food container 200 near the drive assembly 400 by welding or bolting, allowing the temperature detection assembly 800 to directly contact the metal wall of the container. The lower bearing 710 is press-fitted into the inner hole of the bushing 720, and the drive shaft 410 passes through the inner hole of the lower bearing 710 for rotational support. The temperature detection assembly 800 is encapsulated within the annular gap formed between the outer wall of the lower bearing 710 and the inner wall of the bushing 720, and is tightly fitted to the inner wall of the bushing 720 using thermally conductive silicone grease or metal filler. When the temperature of the material inside the food container 200 changes, heat is conducted through the metal wall of the container to the bushing 720, and then rapidly transferred to the temperature detection assembly 800 via the filler material, achieving real-time temperature monitoring.

[0082] Through the above technical solution, this application achieves a direct heat conduction path between the temperature detection component 800 and the food container 200, making the temperature measurement value closer to the actual temperature of the material. The sensor is completely enclosed inside the bushing assembly 700, effectively preventing liquid penetration and eliminating sanitary dead corners. The rigid connection structure between the bushing 720 and the lower bearing 710 avoids the risk of the sensor signal line 810 becoming entangled during equipment operation, while ensuring that the operation of the stirring component 300 is not interfered with by the temperature measuring device.

[0083] In one embodiment, such as Figures 8 to 10 As shown, the bushing 720 has an inner groove 721 on one side corresponding to the lower bearing 710, and the lower bearing 710 has an outer groove 711 at the position corresponding to the inner groove 721. The inner groove 721 and the outer groove 711 form a receiving cavity, and the temperature detection component 800 is disposed in the receiving cavity.

[0084] The inner cut groove 721 refers to a groove cut on the outer surface of the shaft sleeve 720 in the circumferential direction, which can be formed by machining on the side wall of the shaft sleeve 720. The groove is used to cooperate with the outer cut groove 711 of the lower bearing 710 to form a closed space. The outer cut groove 711 refers to a groove cut on the inner surface of the lower bearing 710 in the circumferential direction, which can be machined on the inner wall of the lower bearing 710 by wire cutting process. The width and depth of the groove can be matched with the inner cut groove 721 to ensure that a continuous cavity is formed after assembly. The accommodation cavity refers to the space formed after the inner cut groove 721 and the outer cut groove 711 are connected, which is used to fix the temperature detection assembly 800.

[0085] In an embodiment, the shaft sleeve 720 and the lower bearing 710 form a closed accommodation cavity through the nested cooperation of the inner cut groove 721 and the outer cut groove 711, and the temperature detection assembly 800 is completely wrapped in the cavity. The shaft sleeve 720 is in contact with food in the food containing barrel 200, and heat is conducted to the area of the inner cut groove 721 through the metal material of the shaft sleeve 720. The temperature detection assembly 800 is attached to the inner wall of the inner cut groove 721 to perceive temperature changes in real time. Since the accommodation cavity is directly formed by the machining structure of the shaft sleeve 720 and the lower bearing 710, no additional assembly gap is needed, and liquid penetration into the sensor area during cleaning is avoided. At the same time, the temperature detection assembly 800 shortens the heat conduction path through the shaft sleeve 720 and the food containing barrel 200, reduces the thermal resistance of multiple layers of materials in the traditional indirect temperature measurement method, and improves the temperature response speed. The outer cut groove 711 of the lower bearing 710 and the inner cut groove 721 are precisely aligned during assembly to ensure the geometric stability of the accommodation cavity and avoid poor contact of the sensor due to deformation of the cavity.

[0086] Through the above technical solution, the present application realizes efficient heat conduction between the temperature detection assembly 800 and the food containing barrel 200, reduces temperature measurement lag, and improves temperature detection accuracy. The closed structure of the accommodation cavity effectively prevents liquid from entering the sensor installation area, reducing the risk of internal equipment pollution. The groove structure cooperation of the shaft sleeve 720 and the lower bearing 710 does not need to change the existing component form, simplifies the sensor installation process, and improves the assembly reliability.

[0087] In an embodiment, as shown in Figure 7 and Figure 8 , a heat conducting layer 910 is arranged in the inner cut groove 721, a buffer layer 920 is arranged in the outer cut groove 711, and the temperature detection assembly 800 is arranged between the heat conducting layer 910 and the buffer layer 920 and is attached to the heat conducting layer 910 and the buffer layer 920.

[0088] The heat-conducting layer 910 refers to a layer of high-thermal-conductivity material covering the surface of the inner cut groove 721, which can be implemented by a metal foil or a heat-conductive silica gel material. The heat-conducting layer 910 is used to quickly absorb the heat inside the food containing barrel 200 and transfer the heat to the temperature detection assembly 800 by directly contacting the outer wall of the shaft sleeve 720. The buffer layer 920 refers to a layer of elastic material filled in the outer cut groove 711, which can be implemented by a rubber gasket or an elastic polymer material. The buffer layer 920 is used to absorb the mechanical vibration generated by the rotation of the driving shaft 410 by deforming, and to eliminate the assembly gap to form a sealed barrier.

[0089] The heat-conducting layer 910 is fixed on the groove bottom surface of the inner cut groove 721 and directly contacts the outer wall of the shaft sleeve 720. The heat inside the food containing barrel 200 is transferred to the heat-conducting layer 910 through the shaft sleeve 720, and then uniformly diffused to the detection surface of the temperature detection assembly 800 by the heat-conducting layer 910, thereby shortening the heat conduction path. The buffer layer 920 is pressed between the groove wall of the outer cut groove 711 and the lower bearing 710. When the driving shaft 410 rotates, the buffer layer 920 absorbs the vibration energy by elastic deformation, thereby avoiding mechanical impact on the temperature detection assembly 800. The temperature detection assembly 800 is clamped between the heat-conducting layer 910 and the buffer layer 920. The detection surface of the temperature detection assembly 800 is tightly attached to the heat-conducting layer 910 and the buffer layer 920 at the same time, thereby forming a double-fixed structure, which realizes efficient heat transfer and blocks the liquid penetration path.

[0090] Optionally, to improve the assembly precision and structural reliability, a heat-conducting adhesive with double-sided adhesion is used as a fixing and heat transfer medium. In the specific assembly process, the temperature detection assembly 800 is first fixed in the inner cut groove 721 of the shaft sleeve assembly 700 by the adhesion of the heat-conducting adhesive, so that the temperature detection assembly 800 is tightly attached to the heat-conducting layer 910 and efficient heat conduction is realized. Meanwhile, a foamed sponge is pre-installed in the outer cut groove 711 of the lower bearing 710 as the buffer layer 920. The foamed sponge has a back adhesive on one side for adhering to the groove wall of the outer cut groove 711 and a smooth surface on the other side facing the temperature detection assembly 800. The foamed sponge not only has good elasticity to absorb the running vibration, but also forms a sealed structure in the compressed state to prevent liquid from penetrating into the internal electronic components in the axial direction during the cleaning process, thereby playing a dual protection role of pressure injury prevention and waterproofing. After the temperature detection assembly 800 and the buffer material are pre-installed, the lower bearing 710 is pressed into the bottom of the shaft sleeve 720 as a whole. The installation rib 713 structure of the lower bearing 710 applies uniform pressure to the head of the temperature detection assembly 800 during the pressing process, thereby realizing mechanical locking and electrical isolation of the sensor, and ensuring the stability and safety during long-term operation.

[0091] In an embodiment, as shown in FIG. 6, the temperature detection assembly 800 is fixed on the shaft sleeve 720 by a heat-conducting adhesive. Figure 9As shown, the lower bearing 710 specifically comprises a body 712 and a mounting rib 713, the body 712 is cylindrical, the mounting rib 713 is arranged at one end of the body 712, extends along the direction parallel to the axial direction of the body 712, and is spaced apart from the shaft hole of the body 712 by a preset distance; and the excircle groove 711 is arranged on the body 712 and extends away from the one end of the body 712 along the mounting rib 713.

[0092] Optionally, the body 712 refers to the cylindrical basic structure of the lower bearing 710, which can be made of stainless steel or engineering plastic, and is used to provide assembly support with the drive shaft 410.

[0093] Optionally, the mounting rib 713 refers to a protruding structure extending from the end of the body 712 along the axial direction, which can be a rib integrally formed with the body 712, and is used to form an extension path of the incircle groove 721 and avoid interference with the movement of the drive shaft 410.

[0094] Optionally, the excircle groove 711 refers to a groove structure opened on the surface of the body 712, i.e. arranged from the body 712 to the mounting rib 713, and is used to accommodate the temperature detection assembly 800.

[0095] Specifically, the body 712 realizes stable cooperation with the drive shaft 410 through the cylindrical structure, the mounting rib 713 extends along the axial direction and maintains a preset distance with the shaft hole, so that the excircle groove 711 can extend to the joint area of the bearing and the shaft sleeve 720 along the end of the mounting rib 713. This layout limits the temperature detection assembly 800 in the closed space formed by the excircle groove 711 and the incircle groove 721, and avoids liquid infiltration by eliminating assembly gaps. The spacing between the mounting rib 713 and the shaft hole forms a double positioning reference, which ensures the axial bearing capacity of the bearing and provides a stable mounting space for the temperature detection assembly 800. The extension design of the excircle groove 711 along the end of the mounting rib 713 enables the temperature detection assembly 800 to directly contact the heat conduction layer 910, thereby improving the response speed of temperature detection.

[0096] In this embodiment, a small clearance distance is provided between the other side of the mounting rib 713 and the shaft hole, so that the mounting rib 713 is structurally prevented from interfering with the rotational movement of the drive shaft 410. This clearance design makes the mounting rib 713 form a kind of elastic cantilever structure, the root of which is fixed to the body 712 of the lower bearing 710, and the free end of which extends to the mounting area of the shaft sleeve assembly 700. When the temperature detection assembly 800 is arranged at the end of the cantilever structure, the compression force it receives during assembly can be effectively buffered by the slight elastic deformation of the cantilever, thereby avoiding damage to the sensor body 712 or the welding point caused by overpressure. In this way, not only the fault tolerance of the assembly process is improved, but also the risk of fatigue cracking or contact failure of the device under long-term vibration working conditions is reduced.

[0097] In the embodiment, the outer circumferential surface of the lower bearing 710 and the upper end of the mounting rib 713 are provided with guiding structures, such as chamfers, arc transitions or tapered guiding surfaces, for quick alignment and smooth pressing during assembly. In this way, the guiding structure of the outer circumference can guide the lower bearing 710 to be accurately inserted into the matching hole position at the bottom of the shaft sleeve 720, prevent eccentricity or jamming, and make the installation more convenient.

[0098] In an embodiment, as shown in Figures 8 to 10 one of the lower bearing 710 and the shaft sleeve 720 is provided with a positioning rib 714, and the other of the lower bearing 710 and the shaft sleeve 720 is provided with a positioning groove 722 aligned with the positioning rib 714, and the positioning groove 722 is adapted to engage with the positioning rib 714.

[0099] In an embodiment, the positioning rib 714 is arranged on the lower bearing 710, and the positioning groove 722 is arranged on the shaft sleeve 720. Alternatively, the positioning rib 714 refers to a protruding structure arranged on the surface of the lower bearing 710, which can be realized in the form of a strip-shaped or block-shaped protrusion, and is used to form physical limiting with the positioning groove 722 of the shaft sleeve 720. Alternatively, the positioning groove 722 refers to a recessed structure on the inner wall of the shaft sleeve 720, which can be realized in the form of a groove matched with the shape of the positioning rib 714, and is used to accommodate the positioning rib 714 and limit its circumferential movement.

[0100] In the embodiment, when the lower bearing 710 is assembled with the shaft sleeve 720, the positioning rib 714 is embedded in the positioning groove 722, and the adapted engagement of the two makes the lower bearing 710 unable to rotate relative to the shaft sleeve 720. This rigid limiting structure eliminates the risk of installation deviation caused by angle deviation during assembly, and ensures the uniqueness of the position of the lower bearing 710 in the shaft sleeve 720. By forcibly restricting the circumferential freedom, the temperature detection assembly 800 can always be kept at the preset position of the accommodating cavity, avoiding the problem of poor adhesion of the sensor to the heat-conducting layer 910 and the buffer layer 920 caused by mispositioning of the components.

[0101] In an embodiment, as shown in Figures 3 to 7 the stirring assembly 300 includes a transmission sleeve 310 and a stirring piece 320 arranged on the transmission sleeve 310, the transmission sleeve 310 is sleeved on the shaft sleeve 720, and the transmission sleeve 310 has a first polygonal through hole; the drive shaft 410 has a circular segment 411 and a polygonal segment 412, the circular segment 411 is arranged in the shaft sleeve 720, the polygonal segment 412 is arranged in the first polygonal through hole of the transmission sleeve 310, and the polygonal segment 412 is adapted to the shape of the first polygonal through hole, so that the drive shaft 410 drives the transmission sleeve 310 to move under the condition of movement.

[0102] The transmission sleeve 310 refers to a cylindrical structure sleeved outside the shaft sleeve 720, which can be made of stainless steel or engineering plastic and is physically isolated from the shaft sleeve 720 by sleeving.

[0103] The first polygonal through hole refers to a through hole with a regular geometric shape formed in the transmission sleeve 310, which can be a regular hexagonal or square hole structure and is matched with the polygonal segment 412 of the drive shaft 410 without clearance.

[0104] It can be understood that the polygonal segment 412 is matched with the first polygonal through hole, which means that when the polygonal segment 412 is arranged in the polygonal through hole, the polygonal segment 412 can form a face contact force transmission cooperation with the first polygonal through hole during rotation to drive the transmission sleeve 310 to rotate. Specifically, each plane of the polygonal segment 412 is closely attached to the corresponding inner wall surface of the first polygonal through hole to realize torque transmission without clearance or with slight interference. When the drive shaft 410 rotates, the side wall of the polygonal segment 412 directly abuts the geometric matching surface of the through hole, and the rotating power is output to the transmission sleeve 310 through the cooperative action of multiple contact surfaces. Alternatively, the polygonal segment 412 has the same shape and size as the first polygonal through hole to improve the stability of the system.

[0105] The circular segment 411 refers to a part of the cylindrical shaft body of the drive shaft 410 near the mounting position of the shaft sleeve 720, which can have a shape matching the inner diameter of the lower bearing 710 to ensure the coaxiality of the drive shaft 410 and the shaft sleeve 720. The polygonal segment 412 refers to a part of the multi-prism shaft body of the drive shaft 410 extending into the transmission sleeve 310, which can transmit the rotating torque through multiple face contacts.

[0106] The transmission sleeve 310 is sleeved outside the fixed shaft sleeve 720 to spatially isolate the stirring part 320 from the internal temperature detection assembly 800 of the shaft sleeve 720. When the drive shaft 410 rotates, its circular segment 411 remains stable and coaxial in the shaft sleeve 720, and the polygonal segment 412 contacts the inner wall of the first polygonal through hole of the transmission sleeve 310 through multiple planes to directly transmit the rotating driving force. Since the polygonal segment 412 is completely matched with the shape of the through hole, the plane of the drive shaft 410 pushes the transmission sleeve 310 to rotate synchronously every time it rotates an angle, eliminating the power lag or slipping phenomenon caused by clearance in traditional transmission structures. The shaft sleeve 720 is fixedly welded at the bottom of the food containing barrel 200 and only serves as a support structure for the drive shaft 410 without participating in rotation. The transmission sleeve 310 rotates independently under the drive of the drive shaft 410 to avoid interference with the temperature detection assembly 800.

[0107] Optionally, the bottom of the transmission sleeve 310 is spaced apart from the bottom of the food containing barrel 200 by a preset distance, so as not to be restricted by the food containing barrel 200 during rotation.

[0108] Optionally, the circular segment 411 and the polygonal segment 412 are integrally formed together to form the driving shaft 410.

[0109] In an embodiment, as shown in Figures 3 to 7 the shaft sleeve assembly 700 further comprises an end cover 715, the end cover 715 has a second polygonal through hole with the same size as the first polygonal through hole, and the end cover 715 has a cover body 7151 and a first extension body 7152, the cover body 7151 covers the port of the shaft sleeve 720, the first extension body 7152 is arranged on the side of the cover body 7151 towards the inside of the shaft sleeve 720, and the transmission sleeve 310 is arranged on the cover body 7151; the diameter of the circular segment 411 is not less than the diameter of the polygonal segment 412, the polygonal segment 412 of the driving shaft 410 passes through the first polygonal through hole and the second polygonal through hole, and the first extension body 7152 of the end cover 715 abuts against the end face of the circular segment 411, so as to axially limit the driving shaft 410.

[0110] The end cover 715 refers to a sealing member covering the port of the shaft sleeve 720, which can be realized by a metal stamping part or an injection molding part, and the size of the cover body 7151 is greater than the port of the shaft sleeve 720 to realize waterproof sealing.

[0111] The first extension body 7152 refers to a protruding structure extending axially from the inside of the cover body 7151, which can be formed by integral forming or welding, and is used to contact the end face of the driving shaft 410 to form mechanical limiting.

[0112] The second polygonal through hole refers to a hole structure matched with the through hole shape of the transmission sleeve 310, which ensures that the polygonal segment 412 of the driving shaft 410 and the transmission sleeve 310 form a gapless fit. In the embodiment, the second polygonal through hole, the first polygonal through hole and the polygonal segment 412 have the same shape and the same cross-sectional size, and the projection planes of the first polygonal through hole and the second polygonal through hole overlap.

[0113] The diameter of the circular segment 411 is not less than the diameter of the polygonal segment 412 refers to that the driving shaft 410 forms a stepped structure in the axial direction, which can be realized by turning machining, so that the first extension body 7152 of the end cover 715 can contact the end face of the driving shaft 410, i.e. the end face of the circular segment 411.

[0114] Specifically, the end cover 715 covers the port of the shaft sleeve 720 with the cover body 7151 to form a sealing interface, preventing external liquid from entering the interior of the shaft sleeve 720. The first extension body 7152 extends axially to the end face of the circular segment 411 of the drive shaft 410, and is in contact with the end face to achieve axial positioning when the drive shaft 410 rotates. The polygonal segment 412 of the drive shaft 410 passes through the polygonal through hole of the transmission sleeve 310 and the end cover 715 at the same time, forming a double transmission interface to ensure the stability of torque transmission. Since the diameter of the circular segment 411 is not less than that of the polygonal segment 412, the end cover 715 will not generate an assembly gap when covering the end face of the drive shaft 410, that is, the size of the cover body 7151 is greater than that of the port of the shaft sleeve 720, thereby avoiding the penetration of liquid into the interior of the shaft sleeve 720. The transmission sleeve 310 is arranged outside the end cover 715, so that the stirring assembly 300 is physically isolated from the internal temperature detection assembly 800 of the shaft sleeve 720, avoiding operational interference.

[0115] It should be noted that the end cover 715 in the embodiment is not fixed and stationary, but rotates synchronously with the drive shaft 410 and the transmission sleeve 310. In a conventional structure, if the end cover 715 remains stationary and the transmission sleeve 310 needs to rotate around it, a continuous relative sliding friction will be generated between the end faces in contact, which not only significantly increases the rotational resistance, causing energy consumption to rise and local heating, but also easily generates metal debris or sealing failure due to friction and wear, affecting the service life and food hygiene and safety of the equipment. Therefore, in the embodiment, the end cover 715 rotates synchronously with the transmission sleeve 310, fundamentally eliminating the relative motion between the two. Although there is still contact between the end cover 715 and the port of the shaft sleeve 720, the contact area is small and the pressing force is controllable, so the friction generated is small and does not affect the overall operating efficiency. More importantly, the first extension body 7152 arranged on the end cover 715 extends into the interior of the shaft sleeve 720 and abuts against the end face of the circular segment 411 of the drive shaft 410, forming an effective limiting structure. This design can still maintain stable mechanical support under the rotating state of the end cover 715, and will not damage the limiting function or cause structural looseness due to rotation.

[0116] Through the above technical solutions, the application effectively prevents liquid from penetrating into the interior of the shaft sleeve 720 from the connection of the drive shaft 410, avoiding the formation of a sanitary dead angle during cleaning. The axial positioning reliability of the drive shaft 410 is improved, ensuring the stability of the installation position of the temperature detection assembly 800 in the shaft sleeve 720. The separated layout of the stirring assembly 300 and the shaft sleeve assembly 700 eliminates mechanical operational interference, ensuring the temperature detection accuracy and the operational stability of the equipment.

[0117] In an embodiment, as shown in FIG. 6, the end cover 715 is provided with a plurality of first extension bodies 7152, and the shaft sleeve 720 is provided with a plurality of second extension bodies 7202 corresponding to the first extension bodies 7152. Figure 7 and Figure 10As shown, the inner wall of the shaft sleeve 720 is provided with a first limiting portion 723 and a second limiting portion 724; the first limiting portion 723 is used for abutting an end of the lower bearing 710 corresponding to the inner wall of the food containing barrel 200 away from the food containing barrel 200, so as to axially limit the lower bearing 710; the shaft sleeve assembly 700 further comprises an oil sealing member 730, the end cover 715 further comprises a second extending body 7153 arranged close to the edge of the end cover 715 opposite to the first extending body 7152, and the oil sealing member 730 is arranged at the end of the second extending body 7153, and the second limiting portion 724 is used for abutting the oil sealing member 730, so as to limit the oil sealing member 730.

[0118] In the embodiment, as shown, Figure 7 the driving shaft 410 is further provided with a cutting groove 413, and the cutting groove 413 is provided with a limiting clamping member 930; the limiting clamping member 930 is used for abutting an end of the lower bearing 710 away from the first limiting portion 723 in the case that the first limiting portion 723 abuts the lower bearing 710.

[0119] Optionally, the first limiting portion 723 refers to an annular protruding structure arranged on the inner wall of the shaft sleeve 720, which can be realized by machining a stepped surface, and is used for contacting the end face of the lower bearing 710 to limit the axial movement thereof; the second limiting portion 724 refers to an annular protrusion at another position of the inner wall of the shaft sleeve 720, which can be realized by turning a stepped surface, and is used for fixing the installation position of the oil sealing member 730. The oil sealing member 730 refers to an annular part for sealing lubricating oil, which can be realized by using a skeleton oil seal made of rubber material, and the inner ring thereof contacts the driving shaft 410 to form dynamic sealing. The second extending body 7153 refers to an annular flange structure extending downward from the edge of the end cover 715, which can be integrally formed with the end cover 715 by injection molding, and is used for bearing the oil sealing member 730. The cutting groove 413 refers to an annular groove formed on the surface of the driving shaft 410, which can be formed by milling, and is used for mounting the limiting clamping member 930. The limiting clamping member 930 refers to an annular part fixed in the cutting groove 413, which can be realized by using an open clamp spring or a metal snap ring, and the outer diameter thereof is greater than the inner hole diameter of the lower bearing 710 to form limiting.

[0120] Specifically, the first limiting portion 723 of the inner wall of the shaft sleeve 720 is in contact with the end face of the lower bearing 710, limiting the axial movement of the lower bearing 710 in the shaft sleeve 720, avoiding displacement of the lower bearing 710 due to vibration when the drive shaft 410 rotates. The second limiting portion 724 is in contact with the outer edge of the oil sealing member 730, fixing the oil sealing member 730 at the end of the second extension body 7153, forming a sealing barrier to the lubricating oil in the interior of the shaft sleeve 720. The limiting clamp 930 installed in the cutout 413 of the drive shaft 410 is in contact with the other end of the lower bearing 710 in the axial direction, forming a bidirectional constraint with the first limiting portion 723, eliminating the axial movement of the drive shaft 410 during operation. The second extension body 7153 of the end cover 715 arranges the oil sealing member 730 at the edge area of the shaft sleeve 720, avoiding the intrusion of the oil sealing structure into the running space of the stirring assembly 300.

[0121] The first limiting portion 723 and the second limiting portion 724 can each be an independent limiting block, respectively in contact with the lower bearing 710 and the oil sealing member 730. Of course, the first limiting portion 723 and the second limiting portion 724 can also be two ends of one limiting block, such as Figure 7 and Figure 10 As shown, a limiting protrusion is arranged in the shaft sleeve 720, and the first limiting portion 723 and the second limiting portion 724 correspond to two ends of the limiting protrusion, that is, one end of the limiting protrusion serves as the first limiting portion 723 in contact with the end face of the lower bearing 710, and the other end serves as the second limiting portion 724 in contact with the outer edge of the oil sealing member 730.

[0122] In an embodiment, as shown in Figures 3 to 7 the shaft sleeve assembly 700 further includes a nut 740, the drive shaft 410 has a threaded segment 414 extending outside the transmission sleeve 310, and the nut 740 is used for adaptive connection with the threaded segment 414; one end of the nut 740 corresponding to the screw hole is provided with a sealing member, and the depth of the screw hole of the nut 740 is not less than the length of the threaded segment 414, so that in the case of adaptive connection between the nut 740 and the threaded segment 414, the sealing member contacts the transmission sleeve 310.

[0123] The threaded segment 414 refers to the part of the end of the drive shaft 410 with external threads, which can be implemented by standard threads or trapezoidal threads, and is used to cooperate with the internal threads of the nut 740 to form axial fixation. The sealing member refers to an elastic material component arranged at the end of the screw hole of the nut 740, which can be implemented by a rubber ring or a silica gel pad, and is used to contact the surface of the transmission sleeve 310 to form a seal when the nut 740 is tightened. The depth of the screw hole not less than the length of the threaded segment 414 means that the axial size of the internal thread cavity of the nut 740 covers the entire area of the threaded segment 414 of the drive shaft 410, which can be implemented by adjusting the height of the nut 740 to match the length of the threaded segment 414, and is used to ensure that the nut 740 completely covers the threaded segment 414, avoiding exposure of the threads.

[0124] The drive shaft 410 is formed with a circular segment 411, a polygonal segment 412 and a threaded segment 414 connected in sequence.

[0125] like Figure 11 As shown, the threaded section 414 at the end of the drive shaft 410 passes through the transmission sleeve 310 and is axially fixed by tightening the nut 740. The nut 740 completely accommodates the threaded section 414, ensuring that the end of the threaded section 414 does not extend beyond the threaded hole after the nut 740 is tightened. The seal is pressed between the end face of the nut 740 and the outer wall of the transmission sleeve 310, forming a radial sealing interface that prevents liquid from entering the bushing 720 along the thread gap. The complete fit between the threaded section 414 and the threaded hole eliminates the space for residue accumulation caused by the unengaged area in traditional threaded connections. At the same time, the elastic deformation of the seal compensates for assembly tolerances, ensuring reliable sealing.

[0126] In some of the solutions described above in this application, the existing housing assembly 100 adopts a simple split structure, which may result in insufficient isolation of the accommodating space. The inaccurate path of the drive shaft 410 affects the torque transmission efficiency. At the same time, the lack of a fixed structure for the connection between the partition 123 and the enclosure 124 can easily cause vibration transmission and heat dissipation, and there is also a problem of insufficient space utilization.

[0127] In one embodiment, such as Figure 2 As shown, the housing assembly 100 includes a first end plate 121, a second end plate 122, a partition 123, and a surrounding plate 124. The partition 123 is fixed inside the surrounding plate 124, and the partition 123 divides the space enclosed by the surrounding plate 124 into a first receiving space 111 and a second receiving space 112 arranged vertically. The first end plate 121 is located at the end of the surrounding plate 124 near the first receiving space 111, and the second end plate 122 is located at the end of the surrounding plate 124 near the second receiving space 112. The end plate 121 includes a first flat plate portion 1211 and a first recess 1212 located in the middle of the first flat plate portion 1211. The first recess 1212 constitutes a food container 200. The food container 200 is disposed on one side of the partition 123 corresponding to the first accommodating space 111. The drive assembly 400 is disposed on one side of the partition 123 corresponding to the second accommodating space 112. The partition 123 has a first through hole. The drive shaft 410 of the drive assembly 400 passes through the first through hole and is inserted into the food container 200.

[0128] In the embodiment, the shell assembly 100 has a first accommodating space 111 and a second accommodating space 112 arranged in a vertical direction. It can be understood that the first accommodating space 111 and the second accommodating space 112 refer to the division of the internal space of the device by a vertical layered structure, and the first accommodating space 111 is located at the upper part of the shell assembly 100, and the second accommodating space 112 is located at the lower part of the shell assembly 100. It can be achieved by using an upper and lower stacked partition plate 123 or a split shell structure, thereby physically isolating the food processing area from the driving area, reducing the interference of the driving assembly 400 operation heat on the refrigeration system, and at the same time shortening the driving shaft 410 penetration path, ensuring that the driving shaft 410 of the driving assembly 400 can be directly connected with the central shaft of the stirring assembly 300.

[0129] Optionally, the surrounding plate 124 can be made of a metal material, such as stainless steel or aluminum alloy, to provide sufficient structural strength and corrosion resistance. The surrounding plate 124 is formed by an integral molding process to extend vertically, and the internal space is divided into two independent areas by the partition plate 123. Among them, the shape of the surrounding plate 124 determines the shape of the entire shell assembly 100, and the surrounding plate 124 can be cylindrical or square cylindrical, and of course the specific shape is not limited here.

[0130] As an optional embodiment, the inner wall of the surrounding plate 124 can be provided with a positioning groove 722 for fixing the edge of the partition plate 123. The first end plate 121 and the second end plate 122 can be fixedly connected with the surrounding plate 124 by bolts or welding. The first recess 1212 can be cylindrical, and the diameter and depth thereof are designed according to the food accommodating requirement.

[0131] Optionally, the first flat plate part 1211 of the first end plate 121 can be provided as a circular or rectangular base plate, and the middle part of the first flat plate part 1211 is provided with a first recess 1212, which can be a recess structure formed by a stamping process in the middle part of the first end plate 121, that is, the first flat plate part 1211 can be integrally formed with the first recess 1212, reducing the assembly link. The specific recess size of the recess structure is not limited here. The partition plate 123 and the surrounding plate 124 can be fixed by screws or welding.

[0132] Optionally, a copper bushing can be arranged on the inner wall of the first through hole, and a silica gel sealing ring can be filled between the driving shaft 410 and the first through hole, so as to avoid damage caused by too high structural hardness, provide buffering force for vibration, and increase the reliability of the entire mechanism. Optionally, the first through hole can be arranged at the center position of the partition plate 123, and the diameter thereof is slightly larger than the diameter of the driving shaft 410, so as to ensure smooth penetration and operation of the driving shaft 410.

[0133] It can be understood that the partition plate 123 plays a role in bearing the driving assembly 400 and effectively blocks the transmission of motor heat to the food containing barrel 200. In addition, since there is only one partition plate 123 between the food containing barrel 200 and the driving assembly 400, that is, the space occupied by the two is small, on the one hand, the driving efficiency can be improved by reducing the driving force transmission path, and on the other hand, the space utilization can be improved, and the volume of the entire food processing device is reduced.

[0134] The driving shaft 410 and the support structure in the traditional transverse layout have the problem of insufficient dynamic matching. Therefore, in the embodiment, the shell assembly 100 of the food processing device has a first containing space 111 and a second containing space 112 arranged in the vertical direction, the food containing barrel 200 is located in the first containing space 111, and the driving assembly 400 is located in the second containing space 112. In this way, the food containing cavity and the driving assembly 400 are arranged in the vertical direction, the stirring assembly 300 in the food containing cavity is connected to the driving shaft 410 of the driving assembly 400, and the food in the food containing barrel 200 can be stirred. The overall structure is arranged in the vertical direction, effectively solving the problems of uneven torsion dispersion and insufficient structural strength of the traditional food processing device.

[0135] Optionally, a plurality of supporting feet can be further arranged on the second end plate 122 to prevent slipping after being placed in the corresponding position.

[0136] In an embodiment, as shown in Figure 1 the food processing device further comprises a plurality of support beams 131, each of the plurality of support beams 131 having opposite first and second ends, the first ends of the plurality of support beams 131 being connected to the first end plate 121, and the second ends of the plurality of support beams 131 being connected to the second end plate 122; the driving shaft 410 of the driving assembly 400 is used to apply a driving torque to the stirring assembly 300, and the torsion direction of the driving torque is not parallel to the extension direction of the plurality of support beams 131.

[0137] The extension direction of the support beam 131 and the driving torque direction form a non-parallel relationship, which can be perpendicular or a specific angle, for example, the angle between the two is 30° to 90°. The first and second ends of the support beam 131 are respectively fixed to the first and second end plates 121 and 122 by welding or bolts, forming a continuous rigid frame through the shell assembly 100.

[0138] Optionally, the cross-sectional shape of the support beam 131 can be L-shaped, T-shaped or I-shaped to improve the bending resistance. When the driving shaft 410 transmits the torque, the support beam 131 decomposes the torque into a component perpendicular to its extension direction through the non-parallel layout, for example, when the support beam 131 extends in the vertical direction, the torsion direction of the driving shaft 410 is decomposed into a horizontal component, which is borne by the lateral stiffness of the support beam 131.

[0139] In the present embodiment, the food processing device comprises four support beams 131, which are respectively arranged at the four corners of the housing assembly 100 to form a stable support frame. The support beams 131 can be made of metal materials, such as stainless steel or aluminum alloy, to provide sufficient strength and rigidity. The driving shaft 410 can be connected with the stirring assembly 300 through bearings or couplings 440 to ensure effective transmission of the torsion.

[0140] Specifically, the plurality of support beams 131 are arranged to extend along a first direction, and the torsion direction of the driving torsion is perpendicular to the first direction. The extension direction of the support beams 131 and the torsion direction of the driving shaft 410 form a spatial staggered relationship, so that the torsion transmission path is redistributed. When the driving shaft 410 applies a clockwise or counterclockwise torsion, the support beams 131 convert the torsion into a shear force perpendicular to the axial direction of the support beams 131 through the perpendicular relationship between the extension direction and the torsion direction. The rigid connection structure of the support beams 131 uniformly disperses the shear force to the two end plates to avoid local stress concentration. For example, when the support beams 131 adopt an I-shaped cross section and are arranged in the vertical direction, the web can effectively resist the horizontal shear force, and the flange bears the bending stress. Thus, the non-parallel design of the extension direction of the support beams 131 and the driving torsion changes the mechanical transmission path, so that the support structure can absorb and disperse the torsion by using the cross-sectional characteristics of the support structure, thereby improving the vibration resistance and fatigue resistance of the device.

[0141] Through the above technical solutions, the present application realizes the optimal matching of the support structure and the driving torsion. Since the extension direction of the support beams 131 and the torsion direction of the driving torsion are not parallel, the driving torsion is decomposed into a component perpendicular to the extension direction of the support beams 131. In this way, the torsion is prevented from being transmitted in a single direction along the support beams 131, effectively preventing stress concentration. The support beams 131 can disperse and absorb the torsion transmitted by the driving shaft 410 through their own structural strength, thereby improving the overall torsional resistance of the device.

[0142] In an embodiment, as shown in Figure 1 The food processing device further comprises a foaming shell 600 arranged on the side of the partition plate 123 close to the first containing space 111, and the foaming shell 600 surrounds the outside of the food containing barrel 200 to form a closed foaming containing space between the foaming shell 600 and the food containing barrel 200, which is used to contain foaming materials.

[0143] The foaming shell 600 forms an annular closed space by surrounding the food containing barrel 200, and forms a continuous heat insulation layer after the foaming materials are filled. When the refrigeration assembly 500 operates, the closed cell structure of the foaming materials effectively blocks the conduction of cold energy through the partition plate 123 to the second containing space 112, thereby reducing the cold energy loss rate.

[0144] In an embodiment, the foamed shell 600 is made of polyurethane material, which is fixed to the surface of the partition plate 123 facing the first accommodating space 111 by screw connection. The annular sidewall of the foamed shell 600 extends along the outer surface of the food accommodating barrel 200 to form a gap space matching the outer contour of the food accommodating barrel 200. The top of the gap space is connected to the upper edge of the food accommodating barrel 200 by a sealing rubber strip, and the bottom is seamlessly connected to the edge of the partition plate 123 by an injection molding process, thereby forming a completely closed annular cavity. During assembly, the liquid polyurethane foaming agent is injected into the annular cavity through a reserved injection port, and a continuous and uniform thermal insulation layer is formed after curing.

[0145] Through the above technical solutions, the application effectively blocks the path of cold energy conduction from the shell assembly 100 to the outside during the refrigeration process, and the closed cell structure of the foamed material significantly reduces the thermal conductivity. The closed space formed by the foamed shell 600 and the food accommodating barrel 200 eliminates direct contact between metal components and avoids local cold bridge effect.

[0146] In addition, the foamed layer after curing enhances the overall stiffness of the shell assembly 100 and can effectively absorb the torsional vibration transmitted by the drive shaft 410.

[0147] In the embodiment, the foamed shell 600 has a second through hole, and the first through hole and the second through hole are coaxially arranged. The drive shaft 410 of the drive assembly 400 passes through the first through hole and the second through hole and is arranged in the food accommodating barrel 200. In this way, the foamed shell 600 and the through hole on the partition plate 123 are accurately aligned, ensuring that the drive shaft 410 does not contact or interfere with the foamed material during penetration. At the same time, it also avoids the foamed material flowing into the transmission area or blocking the bearing matching surface due to structural misalignment. In addition, the coaxial design of the first through hole and the second through hole ensures the accurate centering of the drive shaft 410 and the stirring assembly 300, reduces vibration and wear caused by eccentricity, and improves transmission stability.

[0148] In an embodiment, as shown in Figure 1 and Figure 2 , the food processing device shown in Figure 1 , is Figure 2In the case that the food processing device in the shell assembly 100 is removed, the shell assembly 100 further comprises a third accommodation space 113, the first accommodation space 111, the second accommodation space 112 and the third accommodation space 113 are arranged in a vertical direction; the refrigeration part is an evaporator 510, the refrigeration assembly 500 further comprises a condenser 520, a compressor 530, a first connecting pipe and a second connecting pipe, the condenser 520 and the compressor 530 are arranged in the third accommodation space 113, the evaporator 510 is arranged on the outer side of the food accommodation barrel 200 in a coil shape, the partition plate 123 has a first connecting hole and a second connecting hole, the foaming shell 600 has a third connecting hole and a fourth connecting hole; one end of the first connecting pipe is connected to the compressor 530, the other end of the first connecting pipe is connected to a first end of the evaporator 510 through the first connecting hole and the third connecting hole; one end of the second connecting pipe is connected to the condenser 520, the other end of the second connecting pipe is connected to a second end of the evaporator 510 through the second connecting hole and the fourth connecting hole.

[0149] The third accommodation space 113 forms an independent chamber with the first accommodation space 111 and the second accommodation space 112 in a vertical arrangement, and the height of the third accommodation space 113 can be adapted to the size of the standard compressor 530. The evaporator 510 is arranged in a coil shape along the outer wall of the food accommodation barrel 200. The heat dissipation area formed between the support beams 131 is in communication with the third accommodation space 113, and the heat dissipation holes are arranged in the gaps between the support beams 131 in the surrounding plate 124, and the hole diameter can be designed as an array of holes.

[0150] The three-layer space arranged in a vertical direction physically separates the high-temperature components of the driving assembly 400 and the refrigeration assembly 500, and the heat generated by the compressor 530 is discharged through the vertical heat dissipation channel formed between the support beams 131. The evaporator 510 directly contacts the outer wall of the food accommodation barrel 200, and the refrigerant can quickly absorb the heat in the barrel when flowing in the coil. The condenser 520 and the compressor 530 are arranged in the third accommodation space 113, and the heat dissipation holes in the gaps between the support beams 131 form a forced convection. The extension direction of the support beams 131 is orthogonal to the direction of the heat dissipation airflow, which not only ensures the structural strength but also avoids airflow obstruction, thereby improving the heat dissipation efficiency. In this way, the mutual interference of heat is effectively avoided. The vertical arrangement of the space reduces the risk of deformation of the support structure caused by heat transfer, thereby improving the stability of the overall operation of the device. The condenser 520 and the compressor 530 are arranged in the third accommodation space 113, forming an independent heat dissipation channel, which reduces the influence of high temperature on the refrigeration system, thereby improving the refrigeration efficiency.

[0151] In the embodiment, as shown in Figure 1As shown, a heat dissipation area is formed between at least two of the plurality of support beams 131 in the third accommodating space 113, and the surrounding plate 124 is provided with a heat dissipation hole corresponding to the position of the heat dissipation area; the refrigeration assembly 500 further comprises a heat dissipation fan 540, and the condenser 520 and the heat dissipation fan 540 are arranged in the heat dissipation area, and the heat dissipation fan 540 is located between the surrounding plate 124 and the condenser 520.

[0152] The heat dissipation area between the support beams 131 can be formed by adjusting the spacing between adjacent beam bodies to balance the structural strength and heat dissipation demand. The heat dissipation holes can be uniformly distributed circumferentially along the surrounding plate 124, and the number and distribution form of the heat dissipation holes are not limited herein. The installation angle of the heat dissipation fan 540 can be relative to the plane of the surrounding plate 124 to enhance the airflow guiding effect.

[0153] The heat dissipation fan 540 and the condenser 520 of the refrigeration assembly 500 are arranged in the heat dissipation area, and the heat dissipation fan 540 is located between the surrounding plate 124 and the condenser 520, so that the heat dissipation fan 540 can directly guide the heat generated by the condenser 520 to the heat dissipation hole when the heat dissipation fan 540 operates, forming a forced convection heat dissipation path. The position design of the heat dissipation fan 540 not only shortens the heat transfer distance, but also forms a directional airflow through the cooperation of the fan and the surrounding plate 124, avoiding the circulation of heat inside the heat dissipation area.

[0154] Optionally, the compressor 530, the condenser 520 and the heat dissipation fan 540 are fixed to the second end plate 122, and the specific fixing mode can adopt screws, which are not limited herein.

[0155] In this way, the problem of low heat dissipation efficiency of the refrigeration assembly 500 in the third accommodating space 113 is solved. The heat dissipation area formed between at least two of the plurality of support beams 131 fully utilizes the structural gap inside the shell assembly 100 to form an area dedicated to heat dissipation, avoiding heat retention caused by dense arrangement of the support beams 131. The heat dissipation hole provided on the surrounding plate 124 corresponding to the heat dissipation area directly provides a channel for heat dissipation, enhancing the air convection effect.

[0156] The working process of the entire refrigeration assembly 500 is as follows: after the refrigerant is output from the compressor 530, it passes through the first connecting hole of the partition plate 123 and the third connecting hole of the foamed shell 600 in sequence along the first connecting pipe, and enters the evaporator 510 coiled outside the food containing barrel 200. In this process, the hole positions of the partition plate 123 and the foamed shell 600 form a double positioning structure, so that the pipeline remains in a straight line, avoiding bending loss caused by misalignment. After the refrigerant completing heat exchange flows out from the second end of the evaporator 510, it enters the second connecting pipe through the fourth connecting hole of the foamed shell 600 and the second connecting hole of the partition plate 123, and finally returns to the condenser 520 to form a circulation loop.

[0157] Optionally, the first connecting hole and the third connecting hole can be coaxial, and the second connecting hole and the fourth connecting hole can be coaxial.

[0158] Optionally, in order to ensure the sealing of the foaming containing space, a sealing member can be arranged on each of the first connecting hole, the second connecting hole, the third connecting hole and the fourth connecting hole, so that the first connecting pipe and the second connecting pipe can pass through while ensuring the sealing thereof, avoiding leakage of the foaming material, and improving the stability of the entire structure.

[0159] In this way, the precise alignment of the first connecting pipe and the second connecting pipe optimizes the utilization of the internal space of the device, ensures efficient operation of the refrigeration system, and maintains the overall compact structure.

[0160] In an embodiment, as shown in Figure 5 The foaming shell 600 has a second through hole and a first sleeve 610 and a second sleeve 620 arranged corresponding to the second through hole. The first sleeve 610 extends in the direction of the food containing barrel 200, and the second sleeve 620 extends in the direction of the partition plate 123. The drive shaft 410 of the drive assembly 400 passes through the first through hole, the second sleeve 620, the second through hole and the first sleeve 610 in sequence and is arranged in the food containing barrel 200.

[0161] When the drive shaft 410 passes through the first through hole of the partition plate 123 and the second sleeve 620 in sequence, the inner wall of the second sleeve 620 can be provided with a limiting member to limit the drive shaft 410 radially, effectively preventing the drive shaft 410 from shifting or shaking horizontally during vertical operation.

[0162] After the drive shaft 410 passes through the second through hole and enters the first sleeve 610, since the extension direction of the first sleeve 610 coincides with the central axis of the food containing barrel 200, the drive shaft 410 can ensure that the end of the drive shaft 410 and the connecting end of the stirring assembly 300 maintain good coaxiality, thereby improving the stability and reliability of power transmission.

[0163] It should be noted that the extension part of the first sleeve 610 can block the flow of foaming material to the second through hole on the side of the food containing barrel 200, and the extension part of the second sleeve 620 can effectively prevent the foaming material from leaking to the direction of the partition plate 123, and the two together form a bidirectional sealing barrier to guarantee the integrity and sealing of the foaming containing space.

[0164] Optionally, the first sleeve 610 and the second sleeve 620 can be fixed on both sides of the second through hole of the foamed shell 600 by welding; or the first sleeve 610, the second sleeve 620 and the main body of the foamed shell 600 are manufactured by an integral forming process, such as injection molding or stamping forming by a mold, so as to improve the structural integrity and assembly precision. The materials of the first sleeve 610 and the second sleeve 620 can be consistent with the main body 712 of the foamed shell 600, such as corrosion-resistant metal (such as stainless steel) or high-strength engineering plastic, to ensure the structural strength and long-term use stability. In the assembly process, the drive shaft 410 passes into the first through hole from the side of the partition plate 123, sequentially passes through the inner hole of the second sleeve 620, the second through hole and the inner hole of the first sleeve 610, and finally extends into the food containing barrel 200 and is connected with the stirring assembly 300.

[0165] It can be understood that the first sleeve 610 is in contact with or close to the outer wall of the bottom of the food containing barrel 200, forming a guided butt joint relationship; the second sleeve 620 is in contact with or closely fits the lower surface of the partition plate 123 or the edge of the first through hole, realizing the alignment with the driving path. In this way, the main body part of the foamed shell 600 is in a suspended state through the double connection relationship of the first sleeve 610 with the food containing barrel 200 and the second sleeve 620 with the partition plate 123, does not directly bear the weight of the food containing barrel 200 or the drive assembly 400, only plays a surrounding and heat insulation role, and at the same time avoids the deformation caused by directly bearing the weight to affect the uniformity of the foamed layer.

[0166] Optionally, as shown in Figure 4 and Figure 5 , the foamed shell 600 is also provided with a plurality of fixed protruding columns at the position of the periphery of the second sleeve 620, the fixed protruding columns extend from the foamed shell 600 to the side of the partition plate 123, and are used for mechanical connection with the partition plate 123. Specifically, the fixed protruding columns are provided with threaded holes or through holes, which can be fixed and connected by screws, so as to enhance the position stability of the foamed shell 600 in the assembly and foaming process, and prevent displacement or deformation of the foamed shell 600 under the pressure of the injection material.

[0167] In the embodiment, as shown in Figure 5 , the first sleeve 610 is provided with a first lead port corresponding to one end close to the temperature detection assembly 800, and the outer side of the second sleeve 620 is provided with a second lead port, the first lead port and the second lead port are communicatively arranged, so as to lead out the signal line 810 of the temperature detection assembly 800.

[0168] It can be understood that a continuous channel is formed between the first lead port and the second lead port for the signal line 810 to pass through, avoiding the signal line 810 from being bent, worn or broken due to stirring vibration or assembly extrusion during equipment operation. The channel extends along the axial direction of the shaft sleeve assembly 700, connecting the installation position of the temperature detection assembly 800 and the external signal processing circuit, ensuring reliable lead-out of the signal line 810 without interfering with the operation of the stirring assembly 300. By integrating the lead path inside the sleeve structure, not only the appearance and space utilization of the whole machine are improved, but also the liquid penetration into the equipment interior along the signal line 810 during cleaning is effectively prevented, enhancing the electrical safety and waterproof and dirt-proof ability of the equipment.

[0169] Optionally, the channel is formed between the inner holes of the first sleeve 610 and the second sleeve 620, specifically, an annular or local groove type wiring space is formed in the overlapping area after the two sleeves are coaxially nested. In an embodiment, as shown in Figure 5 The inner wall of the first sleeve 610 is provided with an axially extending wiring groove 631 for accommodating and positioning the signal line 810; a line pressing part 632 is arranged at the position corresponding to the wiring groove 631, which has a shape matching the wiring groove 631 and can tightly fix the signal line 810 in the groove to prevent its displacement in vibration. The top of the first sleeve 610 is provided with a limiting rib 633 for radially limiting one end of the line pressing part 632, ensuring the installation of the line pressing part 632. Optionally, the outer diameter of the first sleeve 610 is smaller than the inner diameter of the second sleeve 620, and after the assembly of the two sleeves, a step surface is formed in the interior of the second sleeve 620 for supporting the end of the first sleeve 610. The other end of the line pressing part 632 is provided with a connecting plate which is attached to the step surface and fixed on the second sleeve 620 by screws (the fixed position avoids blocking the wiring path).

[0170] In an embodiment, as shown in Figure 4 and 5 The driving assembly 400 further includes a driving motor 420, a speed reducer 430 and a shaft coupling 440. The driving motor 420 is arranged on one side of the partition plate 123 corresponding to the second accommodating space 112. The speed reducer 430 is arranged on one side of the partition plate 123 corresponding to the second accommodating space 112, and the speed reducer 430 is connected to the output end of the driving motor 420. The shaft coupling 440 is arranged in the first sleeve 610 and the second sleeve 620, one end of the shaft coupling 440 is connected to the driving end of the speed reducer 430, and the other end of the shaft coupling 440 is connected to one end of the driving shaft 410.

[0171] After the drive motor 420 is powered on, it generates rotational power and outputs it to the input end of the gearbox 430 connected to it. The gearbox 430 reduces the high speed of the motor through the internal gear set, while amplifying the output torque to meet the demand for strong agitation during the mixing process. The output end of the gearbox 430 is connected to the drive shaft 410 through the coupling 440. The coupling 440, as a flexible connecting element, not only transmits rotational torque, but also compensates for small axial, radial or angular deviations between the drive shaft 410 and the gearbox 430, absorbs vibration and impact during operation, prevents stress concentration, and ensures that the power is smoothly transmitted to the mixing assembly 300, thereby achieving uniform mixing of the materials in the food container 200.

[0172] Understandably, by centrally locating the drive motor 420, gearbox 430, and other power components in the second accommodating space 112 below the partition 123 to form an independent drive module, the equipment is effectively isolated from the upper food processing area, preventing lubricant leakage or mechanical wear particles from contaminating the food and improving the hygiene and safety of the equipment. At the same time, the coupling 440 is placed in the protective cavity formed by the first sleeve 610 and the second sleeve 620, which not only achieves a stable connection of the drive shaft 410, but also facilitates sealing protection and overall assembly, reducing external interference and maintenance difficulty. The overall structure is compact, and the power path is vertically aligned, which helps to reduce transmission loss, improve mechanical efficiency, and leave sufficient space for the integration of the upper foam insulation layer and temperature detection component 800, thus optimizing the space utilization and thermal management performance of the whole machine.

[0173] In one embodiment, such as Figure 4 As shown, the housing assembly 100 is also provided with an electrical control box 450, which can also be electrically connected to the cooling assembly 500 and the drive assembly 400 to control the operation of the cooling assembly 500 and the drive assembly 400.

[0174] In one embodiment, the food processing equipment is an ice cream machine.

[0175] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no technical conflict, the various technical features mentioned in the various embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A food processing device, characterized in that, The food processing device comprises: a housing assembly; a food containing barrel arranged in the housing assembly for containing food; a shaft sleeve assembly arranged in the food containing barrel, an outer side of the shaft sleeve assembly being provided with a stirring assembly; a temperature detection assembly arranged in the shaft sleeve assembly for detecting the temperature of the food containing barrel; a driving assembly arranged in the housing assembly, a driving shaft of the driving assembly being arranged in the food containing barrel, the shaft sleeve assembly being sleeved on the driving shaft; a refrigeration assembly comprising a refrigeration part for refrigerating the food containing barrel; the shaft sleeve assembly comprises a lower bearing and a shaft sleeve, the shaft sleeve being fixed to the food containing barrel at a position close to the driving assembly, the lower bearing being arranged in the shaft sleeve, the driving shaft being arranged in the lower bearing, and the temperature detection assembly being arranged between the lower bearing and the shaft sleeve; a side of the shaft sleeve corresponding to the lower bearing is provided with an inner cutting groove, a side of the lower bearing corresponding to the inner cutting groove is provided with an outer cutting groove, and a containing cavity is formed between the inner cutting groove and the outer cutting groove, and the temperature detection assembly is arranged in the containing cavity; the stirring assembly comprises a transmission sleeve and a stirring piece arranged on the transmission sleeve, the transmission sleeve is sleeved on the outer side of the shaft sleeve, and the transmission sleeve is provided with a first polygonal through hole; the driving shaft has a circular segment and a polygonal segment, the circular segment is arranged in the shaft sleeve, the polygonal segment is arranged in the first polygonal through hole of the transmission sleeve, and the polygonal segment is matched with the first polygonal through hole in shape, so that the driving shaft drives the transmission sleeve to move.

2. The food processing device of claim 1, wherein, a heat conduction layer is arranged in the inner cutting groove, a buffer layer is arranged in the outer cutting groove, and the temperature detection assembly is arranged between the heat conduction layer and the buffer layer and is attached to the heat conduction layer and the buffer layer.

3. The food processing device of claim 1, wherein, the lower bearing comprises a body and a mounting rib, the body is cylindrical, the mounting rib is arranged at one end of the body, the mounting rib is arranged in a direction parallel to the axial direction of the body, and the mounting rib is spaced apart from the shaft hole of the body by a predetermined distance; the outer cutting groove is arranged on the body and extends away from one end of the body along the mounting rib.

4. The food processing device of claim 1, wherein, the shaft sleeve assembly further comprises an end cover, the end cover has a cover body and a first extension body, the cover body has a second polygonal through hole with the same size as the first polygonal through hole, the cover body is arranged at the port of the shaft sleeve, the first extension body is arranged on one side of the cover body facing the shaft sleeve, and the transmission sleeve is arranged on the cover body; the diameter of the circular segment is not less than the diameter of the polygonal segment, the polygonal segment of the driving shaft is arranged in the first polygonal through hole and the second polygonal through hole, and the first extension body of the end cover abuts against the end face of the circular segment, so as to axially limit the driving shaft.

5. The food processing device of claim 4, wherein, the inner wall of the shaft sleeve is provided with a first limiting part and a second limiting part; the first limiting part is used for abutting against one end of the lower bearing corresponding to the inner wall away from the food containing barrel, so as to axially limit the lower bearing; The shaft sleeve assembly further comprises an oil sealing member, the end cover further comprises a second extending body arranged close to the edge of the end cover relative to the first extending body, the oil sealing member is arranged at the end of the second extending body, and the second limiting part is used for abutting against the oil sealing member to limit the oil sealing member.

6. The food processing device of claim 5, wherein, The driving shaft is further provided with a cutting groove, and the cutting groove is provided with a limiting clamp; The limiting clamp is used for abutting against one end of the lower bearing away from the first limiting part when the first limiting part abuts against the lower bearing.

7. The food processing device of any one of claims 1 to 3, wherein, The shell assembly comprises a first end plate, a second end plate, a partition plate and a surrounding plate, the partition plate is fixed in the surrounding plate, and the partition plate divides the space enclosed by the surrounding plate into a first containing space and a second containing space arranged in a vertical direction; The first end plate is arranged at one end of the surrounding plate close to the first containing space, and the second end plate is arranged at one end of the surrounding plate close to the second containing space; The first end plate comprises a first flat plate part and a first recess part located at the middle of the first flat plate part, and the first recess part constitutes the food containing barrel; The food containing barrel is arranged at one side of the partition plate corresponding to the first containing space, the driving assembly is arranged at one side of the partition plate corresponding to the second containing space, the partition plate has a first through hole, and the driving shaft of the driving assembly passes through the first through hole and is arranged in the food containing barrel.

8. The food processing device of claim 7, wherein, The food processing equipment further comprises a foaming shell, the foaming shell is arranged at one side of the partition plate close to the first containing space, the foaming shell surrounds the outer side of the food containing barrel to form a closed foaming containing space between the foaming shell and the food containing barrel, and the foaming containing space is used for containing foaming material; The foaming shell has a second through hole, the first through hole and the second through hole are coaxially arranged, and the driving shaft of the driving assembly passes through the first through hole and the second through hole and is arranged in the food containing barrel.

9. The food processing device of claim 8, wherein, The shell assembly further comprises a third containing space, and the first containing space, the second containing space and the third containing space are arranged in a vertical direction; The refrigeration part is an evaporator, the refrigeration assembly further comprises a condenser, a compressor, a first connecting pipe and a second connecting pipe, the condenser and the compressor are arranged in the third containing space, the evaporator is arranged around the outer side of the food containing barrel, the partition plate has a first connecting hole and a second connecting hole, the foaming shell has a third connecting hole and a fourth connecting hole, one end of the first connecting pipe is connected to the compressor, the other end of the first connecting pipe is connected to a first end of the evaporator through the first connecting hole and the third connecting hole, one end of the second connecting pipe is connected to the condenser, and the other end of the second connecting pipe is connected to a second end of the evaporator through the second connecting hole and the fourth connecting hole.

10. The food processing device of claim 8, wherein, The foaming shell has a first sleeve and a second sleeve arranged corresponding to the second through hole, the first sleeve extends in the direction of the food containing barrel, and the second sleeve extends in the direction of the partition plate; The driving shaft of the driving assembly passes through the first through hole, the second sleeve, the second through hole and the first sleeve in sequence in the food containing barrel; The first sleeve is provided with a first lead port at one end close to the temperature detection assembly, and the outer side of the second sleeve is provided with a second lead port, and the first lead port and the second lead port are in communication to lead out the signal line of the temperature detection assembly.

11. The food processing device of claim 10, wherein, The driving assembly further comprises: A driving motor is arranged on one side of the partition plate corresponding to the second containing space; A speed reducer is arranged on one side of the partition plate corresponding to the second containing space, and the speed reducer is connected to the output end of the driving motor; A shaft coupling is arranged in the first sleeve and the second sleeve, one end of the shaft coupling is connected to the driving end of the speed reducer, and the other end of the shaft coupling is connected to one end of the driving shaft.

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