A cutter connecting structure of a food processor and a food processor

Abstract

The utility model discloses a kind of cutter connecting structure and food processor of food processing machine, to solve the problem that the cutter of existing food processing machine is not detachable, leading to inconvenient cleaning, difficult maintenance, it includes host computer and cutter shaft;Host computer is equipped with installation space, and installation space is assembled position constraint module inside;Cutter shaft can extend to installation space and connect with position constraint module. When position constraint module and cutter shaft are in connection state, the module can constrain cutter shaft to move along the axis direction, guarantee the stability when cutter shaft high-speed rotation processes food material, avoid security risk;Meanwhile, through the structural design of position constraint module, the convenient disassembly and installation of cutter shaft and host computer can be realized, it is convenient for user to clean cutter shaft and host computer installation space thoroughly, and also can quickly replace worn cutter shaft or cutter head, reduce maintenance cost, improve food processing machine use convenience and safety, applicable to various household and commercial food processing equipment.

Description

Technical Field

[0001] This utility model relates to the field of food processing machine technology, and in particular to a cutting tool connection structure for a food processing machine and the food processing machine itself. Background Technology

[0002] With the improvement of living standards, food processing machines, which can cut and mix ingredients, have been widely used in homes and restaurants. Among them, the blade assembly, as a core working component, directly affects the ease of use, maintenance costs, and food safety of the equipment through its installation and connection method with the main unit. Currently, most mainstream food processing machines use a non-removable fixed connection between the blades and the main unit. Common methods include welding or fixing them to the transmission components using special non-removable rivets or bolts. The original intention of this design was to ensure the stability of the blades during high-speed rotation, avoid safety risks, and simplify the production assembly process. However, in actual use, this structure has obvious defects, especially in terms of cleaning and functional expansion: Incomplete cleaning: The blades cannot be separated from the main unit, and sticky and fibrous food residues easily adhere to the base of the blades, joint gaps, and dead corners of the mixing chamber. Users can only rinse or scrub to a limited extent. Long-term accumulation of residues can easily breed bacteria, produce odors, and even carbonize, affecting the lifespan of the equipment and food safety. Inconvenient maintenance and replacement: After the cutting tools are worn or damaged, users cannot disassemble and maintain them themselves and need to send them to a professional repair shop, which increases costs and downtime; some equipment with damaged connection structures needs to be replaced as a whole, resulting in waste of resources. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a blade connection structure for a food processing machine and a food processing machine itself.

[0004] A cutting tool connection structure for a food processing machine designed for this purpose includes a main unit and a cutting shaft; the main unit is provided with an installation space, and a position constraint module is provided within the installation space; the cutting shaft can extend into the installation space and connect with the position constraint module; When the position constraint module is connected to the cutter shaft, the position constraint module can constrain the cutter shaft to move along the axial direction.

[0005] Preferably, the position constraint module includes a locking element and a drive module; The locking element is provided in two parts and the locking element is movable left and right relative to the host; The cutter shaft is provided with a limiting annular groove; the locking element is provided with a limiting block on the side facing the limiting annular groove. The drive module is used to drive the locking element to switch positions between a first position and a second position; When the locking element is in the first position, the limiting block is inserted into the limiting ring groove; When the locking element is in the second position, the limiting block is completely separated from the limiting ring groove.

[0006] Preferably, the drive module includes a spring and a drive element; The spring is provided in two parts and is connected to two locking elements respectively; the spring is used to apply force to the locking elements, causing the locking elements to move towards a first position; The driving element moves or rotates relative to the host; the locking element is provided with a track groove, and the driving element is provided with a guide post that is movably inserted into the track groove; When the driving element moves or rotates relative to the host in a first direction, the movement of the guide post can compress the locking element to move towards a second position.

[0007] Preferably, the drive element is connected to a lever, and the side wall of the host is provided with an operation port. The end of the lever away from the drive element extends through the operation port to the outside of the host.

[0008] Preferably, the driving element is configured to move back and forth relative to the host computer; The driving element is provided with a guide groove, and the installation space is provided with a guide block that is movably inserted into the guide groove. The guide block is fixedly connected to the host.

[0009] Preferably, the host is provided with a first fixing frame and a second fixing frame; The first and second fixing frames are arranged vertically at intervals and connected to each other; the installation space is located between the first and second fixing frames. The second mounting bracket is provided with a cutter shaft hole, through which the cutter shaft extends into the mounting space.

[0010] Preferably, the drive module includes two electric linear actuators connected to the locking element and used to drive the locking element to switch positions between a first position and a second position.

[0011] Preferably, the host includes a driver, the driver is connected to a drive coupling head, the upper end of the cutter shaft is connected to a driven coupling head, and the driven coupling head is inserted and coupled to the drive coupling head from bottom to top.

[0012] A food processing machine includes a blade connection structure, a connecting sleeve, a processing cup, and a blade head; The cutting head is fixedly connected to the lower end of the cutting shaft; The host is disposed inside the connecting sleeve and is movable vertically relative to the connecting sleeve; The cooking cup is positioned below the connecting sleeve and is detachably connected to the connecting sleeve.

[0013] Preferably, it also includes a cup lid and a flexible element; The cup lid is detachably connected to the cooking cup. The cup lid is provided with a shaft hole, and the lower end of the blade shaft extends through the shaft hole into the cooking cup below the cup lid. The elastic element is disposed between the main unit and the cup lid.

[0014] Compared with the prior art, this utility model, through the cooperation of the position constraint module and the cutter shaft, can both constrain the movement of the cutter shaft along the axial direction in the connected state, ensuring the connection stability when the cutter rotates at high speed to process food, avoiding safety accidents caused by the displacement of the cutter shaft, and continuing the safety advantages of the traditional structure; and can also drive the locking element to switch positions through the drive module to realize the quick disassembly and installation of the cutter shaft; when the locking element switches from the first position (limit block is inserted into the limit ring groove) to the second position (limit block and limit ring groove are completely separated), the user can easily remove the cutter shaft from the main unit installation space, solving the core pain points of the traditional non-removable structure of "cannot be disassembled and is difficult to maintain", which is convenient to operate and does not require professional tools, thus lowering the threshold for users.

[0015] Meanwhile, since the blade shaft can be completely disassembled from the main unit, users can remove the blade shaft separately during cleaning and directly rinse or scrub it thoroughly, avoiding the problems of residue accumulation, bacterial growth, and odor generation, thus ensuring the hygiene and safety of food processing. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is one of the cross-sectional structural schematic diagrams of this utility model; Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is the second cross-sectional structural schematic diagram of the present invention; Figure 5 This is an exploded structural diagram of the present invention; Figure 6 This is the third cross-sectional structural schematic diagram of this utility model; Figure 7 This is the fourth cross-sectional structural schematic diagram of this utility model. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] See Figures 1-7 A cutting tool connection structure for a food processing machine includes a main unit 10 and a cutting shaft 20; the main unit 10 is provided with an installation space 110, and a position constraint module 30 is provided in the installation space 110; the cutting shaft 20 can extend to the installation space 110 and be connected to the position constraint module 30; when the position constraint module 30 and the cutting shaft 20 are connected, the position constraint module 30 can constrain the cutting shaft 20 to move along the axial direction.

[0019] This tool connection structure for food processing machines, through the coordinated operation of the main unit 10, the tool shaft 20, and the position constraint module 30, achieves stable installation and convenient disassembly of the tool shaft. Its core operating principle revolves around four key aspects: "installation-locking-operation-disassembly," as detailed below: During the tool shaft installation phase, the user must first align the tool shaft 20 equipped with the tool with the installation space 110 of the host 10, and then extend the tool shaft 20 into the installation space 110 in a preset direction until the tool shaft 20 contacts the position constraint module 30 and reaches the matching position; this position must ensure that the subsequent position constraint module 30 can accurately constrain the tool shaft 20 in the axial direction, laying the foundation for the stable fixation of the tool shaft. Upon entering the locking and fixing stage, once the tool shaft 20 is in the appropriate position within the installation space 110, the position constraint module 30 activates, forming a connection with the tool shaft 20 through its own structural characteristics. At this time, the position constraint module 30 applies a constraint force to the tool shaft 20, specifically restricting its movement along its own axis (including axially upward displacement from the installation space 110 or axially downward excessive insertion), thus stably fixing the tool shaft 20 within the installation space 110. In this locked state, the tool shaft 20 forms a reliable connection with the host machine 10, preventing tool shaft displacement from affecting operation during subsequent machining processes. During the processing phase, since the position constraint module 30 has effectively constrained the axial direction of the cutter shaft 20, the host 10 can normally start the driver (such as a motor), which drives the cutter shaft 20 to rotate at high speed through the transmission structure, thereby performing processing operations such as cutting, stirring, and grinding on the food. During this process, the position constraint module 30 continuously maintains the axial constraint on the cutter shaft 20, ensuring that the cutter shaft 20 is always stably in the preset working position, thus ensuring the safety and stability of the processing. When it is necessary to disassemble the cutter shaft (such as for cleaning, replacing tools, or maintenance), the user can operate the control component on the host 10 (or trigger the unlocking mechanism of the position constraint module 30) to release the axial constraint of the position constraint module 30 on the cutter shaft 20. At this time, the connection between the position constraint module 30 and the cutter shaft 20 is disconnected. The user only needs to remove the cutter shaft 20 directly from the installation space 110 of the host 10 in the opposite direction of the installation direction. The whole process does not require the use of professional tools and is convenient and efficient. See Figure 3 , Figure 5 and Figure 6 The position constraint module 30 includes a locking element 310 and a drive module 300; two locking elements 310 are provided and the locking elements 310 are configured to move left and right relative to the host 10; the cutter shaft 20 is provided with a limiting ring groove 200; a limiting block 311 is provided on the side of the locking element 310 facing the limiting ring groove 200; the drive module 300 is used to drive the locking element 310 to switch positions between a first position and a second position; when the locking element 310 is in the first position, the limiting block 311 is inserted into the limiting ring groove 200; when the locking element 310 is in the second position, the limiting block 311 is completely separated from the limiting ring groove 200. The position constraint module 30 works in conjunction with the drive module 300 and two locking elements 310 that can move left and right. Its core function is to achieve axial constraint control of the tool shaft 20: the drive module 300 drives the locking elements 310 to switch between the first and second positions. When the locking element 310 is in the first position, the limit block 311 is inserted into the limit ring groove 200 to restrict the tool shaft 20 from moving along the axis. When it is in the second position, the limit block 311 separates from the limit ring groove 200 and releases the constraint, thereby meeting the requirements of stable fixation during machining and unobstructed disassembly of the tool shaft 20.

[0020] See Figure 3 , Figure 5 and Figure 6The drive module 300 includes a spring 330 and a drive element 320. Two springs 330 are provided and connected to two locking elements 310 respectively. The springs 330 apply force to the locking elements 310, causing them to move towards a first position. The drive element 320 moves or rotates relative to the host 10. The locking element 310 is provided with a track groove 312, and the drive element 320 is provided with a guide post 323 that is movably inserted into the track groove 312. When the drive element 320 moves or rotates relative to the host 10 in a first direction, the guide post 323 moves to compress the locking element 310, causing it to move towards a second position. In this embodiment, the drive module 300, in coordination with the drive element 320 via the spring 330, achieves precise control over the position of the locking element 310: the two springs 330 are respectively connected to the two locking elements 310, and under normal conditions, they apply force to the locking elements 310 to keep them moving toward the first position; when the drive element 320 moves or rotates relative to the host 10 in the first direction, its guide post 323 moves in the track groove 312 of the locking element 310 and squeezes the locking element 310, overcoming the force of the spring 330 to move it toward the second position, thereby completing the switching of the locking element 310 between the first and second positions, providing power support for locking and unlocking the cutter shaft 20.

[0021] See Figure 4 and Figure 5 The drive element 320 is connected to a lever 321. An operation port 100 is provided on the side wall of the main unit 10. The end of the lever 321 away from the drive element 320 extends through the operation port 100 to the outside of the main unit 10. The core function of this structure is to provide users with a convenient manual operating component: users do not need to disassemble the main unit; they only need to move the lever 321 on the outside of the main unit to drive the drive element 320 to move or rotate in a first direction. Then, through the cooperation of the guide post 323 of the drive element 320 and the track groove 312 of the locking element 310, the locking element 310 is controlled to switch between the first and second positions, ultimately achieving the locking and unlocking of the tool shaft 20, greatly simplifying the operation process and improving ease of use.

[0022] In this invention, the driving element 320 is arranged to move back and forth relative to the host 10. The driving element 320 is provided with a guide groove 322, and the mounting space 110 is provided with a guide block 140 that is movably inserted into the guide groove 322. The guide block 140 is fixedly connected to the host 10. The core function of this structure is to provide precise guidance for the back and forth movement of the driving element 320: the guide block 140, inserted into the guide groove 322, can limit the driving element 320 from deviating from the preset trajectory when it moves, ensuring that it moves stably in the back and forth direction. This ensures that the driving element 320 can accurately drive the locking element 310 to switch positions, realizing reliable locking and unlocking of the tool shaft 20.

[0023] See Figure 5 The host 10 is provided with a first fixing frame 120 and a second fixing frame 130; the first fixing frame 120 and the second fixing frame 130 are arranged vertically at intervals and connected to each other; the installation space 110 is arranged between the first fixing frame 120 and the second fixing frame 130; the second fixing frame 130 is provided with a cutter shaft hole 131, and the cutter shaft 20 extends through the cutter shaft hole 131 into the installation space 110.

[0024] In this invention, the drive module 300 includes two electric linear actuators. These actuators are connected to the locking element 310 and drive the locking element 310 to switch between a first position and a second position. The electric linear actuators can be existing linear motors. Their core function is to provide power to the locking element 310: precisely driving the two locking elements 310 to synchronously switch between a first position (limit block inserted into the limit ring groove) and a second position (limit block disengaged from the limit ring groove), thereby achieving reliable locking and unlocking of the tool shaft and ensuring stable operation and convenient operation of the tool connection structure.

[0025] See Figure 3 The main unit 10 includes a driver, which is connected to a drive coupling head 410. A driven coupling head 420 is connected to the upper end of the cutter shaft 20. The driven coupling head 420 is inserted and coupled to the drive coupling head 410 from bottom to top. The driver can use a motor and gearbox transmission, with the final power output acting on the drive coupling head 410. The driver of the main unit 10 (using a motor and gearbox transmission) is the core power source, outputting power to the drive coupling head 410 through transmission. When the cutter shaft 20 is assembled, the driven coupling head 420 at its upper end is inserted and coupled to the drive coupling head 410 from bottom to top. The power of the driver is then precisely transmitted to the cutter shaft 20 through the cooperation of the drive coupling head 410 and the driven coupling head 420, ultimately driving the cutter shaft and cutter to rotate, thus realizing the food processing function.

[0026] See Figures 1 to 7A food processor includes the aforementioned blade connection structure, a connecting sleeve 50, a food preparation cup 60, and a blade head 70. The blade head 70 is fixedly connected to the lower end of the blade shaft 20. The main unit 10 is disposed within the connecting sleeve 50 and is vertically movable relative to the connecting sleeve 50. The food preparation cup 60 is disposed below the connecting sleeve 50 and detachably connected to the connecting sleeve 50. The food processor also includes a cup lid 80 and an elastic element 90. The cup lid 80 is detachably connected to the food preparation cup 60, and the cup lid 80 has a shaft hole through which the lower end of the blade shaft 20 extends into the food preparation cup 60 below the cup lid 80. The elastic element 90 is disposed between the main unit 10 and the cup lid 80. In use, the food preparation cup, containing food, is connected to the cup lid and the connecting sleeve. After the connection is completed, the host can be manually started. The internal driver of the host drives the blade shaft and blade head to rotate. As the host moves up and down relative to the connecting sleeve, the height of the blade head is changed to process food of different heights.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A tool connection structure for a food processing machine, comprising a main unit (10) and a tool shaft (20); characterized in that: The host (10) is provided with an installation space (110), and a position constraint module (30) is provided in the installation space (110); the cutter shaft (20) can extend to the installation space (110) and connect with the position constraint module (30); When the position constraint module (30) is connected to the cutter shaft (20), the position constraint module (30) can constrain the cutter shaft (20) to move along the axial direction; The position constraint module (30) includes a locking element (310) and a drive module (300). Two locking elements (310) are provided, and the locking elements (310) are movable left and right relative to the host (10); The cutter shaft (20) is provided with a limiting annular groove (200); the locking element (310) is provided with a limiting block (311) on the side facing the limiting annular groove (200); The drive module (300) is used to drive the locking element (310) to switch positions between the first position and the second position; When the locking element (310) is in the first position, the limiting block (311) is inserted into the limiting ring groove (200); When the locking element (310) is in the second position, the limiting block (311) is completely separated from the limiting ring groove (200).

2. The tool connection structure for a food processing machine according to claim 1, characterized in that, The drive module (300) includes a spring (330) and a drive element (320); Two springs (330) are provided and are respectively connected to two locking elements (310); the springs (330) are used to apply force to the locking elements (310) to move the locking elements (310) toward the first position; The driving element (320) moves or rotates relative to the host (10); the locking element (310) is provided with a track groove (312), and the driving element (320) is provided with a guide post (323) that is movably inserted into the track groove (312). When the drive element (320) moves or rotates relative to the host (10) in a first direction, the guide post (323) moves to press the locking element (310) toward a second position.

3. The tool connection structure for a food processing machine according to claim 2, characterized in that, The drive element (320) is connected to a lever (321), and the side wall of the host (10) is provided with an operation port (100). The end of the lever (321) away from the drive element (320) extends through the operation port (100) to the outside of the host (10).

4. The tool connection structure for a food processing machine according to claim 2, characterized in that, The drive element (320) is positioned to move back and forth relative to the host (10); The drive element (320) is provided with a guide groove (322), and the installation space (110) is provided with a guide block (140) that is movably inserted into the guide groove (322). The guide block (140) is fixedly connected to the host (10).

5. The tool connection structure for a food processing machine according to claim 2, characterized in that, The host (10) is provided with a first fixing frame (120) and a second fixing frame (130). The first fixing frame (120) and the second fixing frame (130) are arranged vertically at intervals and connected to each other; the installation space (110) is arranged between the first fixing frame (120) and the second fixing frame (130); The second mounting bracket (130) is provided with a cutter shaft hole (131), through which the cutter shaft (20) extends into the mounting space (110).

6. The tool connection structure for a food processing machine according to claim 1, characterized in that, The drive module (300) includes two electric linear actuators connected to the locking element (310) and used to drive the locking element (310) to switch positions between a first position and a second position.

7. The tool connection structure for a food processing machine according to claim 1, characterized in that, The host (10) includes a driver, which is connected to a drive coupling head (410). The upper end of the cutter shaft (20) is connected to a driven coupling head (420), which is inserted and coupled to the drive coupling head (410) from bottom to top.

8. A food processing machine, characterized in that, The knife connection structure includes any one of claims 1 to 7, and further includes a connecting sleeve (50), a cooking cup (60), and a blade (70). The cutting head (70) is fixedly connected to the lower end of the cutting shaft (20); The host (10) is disposed inside the connecting sleeve (50) and is movable up and down relative to the connecting sleeve (50); The cooking cup (60) is located below the connecting sleeve (50) and is detachably connected to the connecting sleeve (50).

9. A food processing machine according to claim 8, characterized in that, It also includes a cup lid (80) and a flexible element (90); The cup lid (80) is detachably connected to the cooking cup (60). The cup lid (80) is provided with a shaft hole. The lower end of the blade shaft (20) extends through the shaft hole into the cooking cup (60) below the cup lid (80). The elastic element (90) is disposed between the host (10) and the cup lid (80).

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