Cutter assembly and food processor

By introducing a removable sleeve design into the tool assembly of the ice cream machine, the problem of difficult cleaning of the existing ice cream machine knife shaft is solved, achieving more thorough cleaning and lower risk of bacterial growth.

CN222622812UActive Publication Date: 2025-03-18NINGBO BORINE ELECTRIC APPLIANCE CO LTD
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Patent Information

Application Number
CN202421299897.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-07
Publication Date
2025-03-18
Estimated Expiration
2034-06-07

AI Technical Summary

Technical Problem

The knife shaft of the existing ice cream machine is difficult to disassemble and assemble, resulting in incomplete cleaning and easy to breed bacteria.

Method used

Design a tool assembly, including a tool shaft, tool and sleeve. The shaft sleeve is set on the tool shaft. When used, only the shaft sleeve and tool are in contact with food. It can be removed for cleaning.

Benefits of technology

It realizes simple disassembly and assembly and thorough cleaning of tool components, reducing the risk of bacterial growth.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cutter assembly and a food processor. The cutter assembly comprises a main machine, a cup body connected with the main machine, and the cutter assembly which is arranged on the main machine and can extend into the cup body. The cutter assembly comprises a cutter shaft; a cutter; one end of the shaft sleeve is connected with the cutter; moreover, a cavity is formed in the shaft sleeve, and the cutter shaft can be arranged in the cavity in a matched mode so that the shaft sleeve can move up and down in the axial direction of the cutter shaft. According to the utility model, the shaft sleeve is connected to the cutter, and the shaft sleeve is sleeved on the cutter shaft, so that when food is processed, only the shaft sleeve and the cutter are in contact with the food, the shaft sleeve and the cutter can be taken down from the cutter shaft during cleaning, the cleaning can be completed, the disassembly and assembly are simple, the cleaning is more thorough, and bacteria are not easy to breed.
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Description

Technical Field

[0001] The utility model relates to the technical field of food processing, in particular to a knife assembly and a food processing machine. Background Art

[0002] Ice cream is a very popular dessert in summer. The ice cream sold on the market is usually made by freezing the prepared cream and squeezing it out through a machine. This ice cream machine uses fresh fruit or milk as raw materials, and uses a blade to crush the frozen ingredients layer by layer to obtain healthy, nutritious and smooth ice cream.

[0003] In the existing ice cream machines on the market, the blade shaft will drive the shaved ice blade to rotate, crushing the frozen ingredients layer by layer. The shaved ice blade shaft will rise into the food and come into complete contact with the ingredients, so hygiene must be maintained. However, the blade shaft cannot be disassembled, making it difficult to clean and prone to breeding bacteria. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The technical problem to be solved by the utility model is to provide a tool assembly and a food processor, wherein a shaft sleeve is connected to the tool, and the shaft sleeve is arranged on the tool shaft. When processing food, only the shaft sleeve and the tool will contact the food. When cleaning, the shaft sleeve and the tool can be removed from the tool shaft to complete the cleaning. The disassembly and assembly are simple, the cleaning is more thorough, and it is not easy to breed bacteria.

[0006] (II) Technical solution

[0007] The solution adopted by the utility model to solve the above technical problems is a tool assembly, including a tool shaft;

[0008] Knives;

[0009] A sleeve, one end of which is connected to the cutter; and a cavity is provided inside the sleeve, and the cutter shaft can be adapted in the cavity so that the sleeve can move up and down along the axial direction of the cutter shaft.

[0010] In some embodiments, the sleeve and the tool are detachably connected, and the tool can be replaced during use to meet various needs; and both can be removed for cleaning, which makes the cleaning more thorough and less likely to breed bacteria.

[0011] By adopting the above scheme, a sleeve is connected to the cutter, and the sleeve is arranged on the cutter shaft. When processing food, only the sleeve and the cutter will come into contact with the food. When cleaning, the sleeve and the cutter can be removed from the cutter shaft to complete the cleaning. The disassembly and assembly are simple, the cleaning is more thorough, and it is not easy to breed bacteria.

[0012] In some embodiments, the tool shaft is provided with a first connection portion along one axial end thereof, and the tool is provided with a second connection portion capable of anti-rotationally cooperating with the first connection portion.

[0013] By adopting the above scheme, the connection between the knife shaft and the knife can be achieved through the cooperation of the first connecting part and the second connecting part, so that the movement of the knife shaft can drive the movement of the knife, thereby performing food processing operations; at the same time, the first connecting part and the second connecting part cooperate to prevent rotation, so that the rotation of the knife shaft can drive the synchronous rotation of the knife, thereby cutting food.

[0014] In some embodiments, the first connecting portion includes a plurality of protrusions formed by the outer wall of the knife shaft protruding outward, and the protrusions are arranged at intervals along the circumference of the outer wall of the knife shaft; the second connecting portion includes a plurality of recessed portions formed by the inner wall of the knife being recessed inward, and the recessed portions are arranged at intervals along the circumference of the inner wall of the knife, and the recessed portions correspond to the protrusions one by one.

[0015] In some embodiments, an inner wall of the tool is provided with an opening below the recessed portion, and the protrusion can extend into the recessed portion through the opening; and the recessed portion is recessed inward along two circumferential side walls so that an abutment wall is formed around the opening. After the protrusion extends into the recessed portion, it rotates in one direction of rotation, so that the bottom end of the protrusion can abut against the abutment wall to limit the axial movement of the protrusion, thereby realizing a fixed connection between the tool shaft and the tool to ensure the stability of the tool when in use.

[0016] In some embodiments, the tool and the sleeve are detachably connected; the tool includes a shaft portion extending into the sleeve, a cavity is provided inside the shaft portion, and the second connecting portion is provided on the inner wall of the shaft portion; the tool shaft includes an inserting shaft that can be adapted in the cavity, and the first connecting portion is provided on the outer wall of the inserting shaft.

[0017] In some embodiments, the shaft portion and the inner wall of the sleeve are threadedly connected to achieve a detachable connection between the tool and the sleeve.

[0018] In some embodiments, the blade shaft includes a blade shaft body and a connecting head detachably connected to one end of the blade shaft body, and the first connecting portion is provided on the connecting head.

[0019] In some embodiments, one end portion of the knife shaft body is recessed inward to form a mounting shaft portion, and the connecting head includes a mounting sleeve sleeved on the mounting shaft portion, and the mounting sleeve and the mounting shaft portion are connected together by a shaft pin.

[0020] In some embodiments, the connector includes a mounting sleeve and an insertion shaft integrally formed on the mounting sleeve.

[0021] By adopting the above scheme, the connecting head and the knife shaft body are detachably connected together through the shaft pin, so they can be removed for cleaning, which is more thorough and not easy to breed bacteria.

[0022] The solution adopted by the utility model to solve the above technical problems is a food cooking machine, which includes a main machine, a cup body connected to the main machine, and a knife assembly as mentioned above which is arranged on the main machine and can extend into the cup body.

[0023] In some embodiments, the top of the cup body is provided with an open end, and the main machine includes a sealing cover capable of sealing the open end; the sealing cover is provided with a through hole for the sleeve to pass through, so that the tool is always placed on the outside of the sealing cover; and the main machine includes a driving assembly, which can drive the knife shaft to drive the sleeve and the tool to perform telescopic movement along the axial direction of the knife shaft.

[0024] In some embodiments, a sealing ring is disposed in the through hole of the sealing cover, and the sealing ring is sleeved on the shaft sleeve.

[0025] By adopting the above scheme, the setting of the sealing ring can make the sealing ring scrape the food on the sleeve and drop it into the cup body when the knife shaft drives the sleeve to retract into the main unit, thereby preventing food from being brought into the main unit and causing contamination inside the main unit.

[0026] In some embodiments, the drive assembly includes a drive motor, and the output end of the drive motor is connected to a reduction gear set; the output end of the reduction gear set is connected to a screw, and the screw and the inner wall of the knife shaft are threadedly connected. Therefore, when the drive motor drives the screw to rotate, the screw will drive the knife shaft to perform telescopic movement while rotating, so that it drives the knife to extend into the cup body and contact the food, thereby performing food processing operations.

[0027] In some embodiments, the sealing cover is detachably connected to the host.

[0028] In some embodiments, the cup body is provided with a cup cover, the outer wall of the cup cover is provided with a handle, and the bottom end of the cup body is provided with a special-shaped rib, and correspondingly, the bottom of the cup cover is provided with a snap-fitting groove that can engage with the rib to achieve locking between the cup body and the cup cover, so as to ensure the stability of the food processor when in use; the main unit includes a mounting seat for mounting the sealing cover, and the mounting seat is provided with a plurality of snap parts arranged in an annular manner to engage with the periphery of the sealing cover, so as to achieve fixed installation of the sealing cover on the mounting seat; the bottom end of the cup cover is provided with an anti-slip block to improve the stability during food processing; and the outer periphery of the mounting seat is provided with an inverted limiting buckle, and after the cup cover is assembled on the main unit, the limiting buckle is restricted to the cup cover The outer wall of the cup cover is provided with an L-shaped limit groove on the outer wall of the cup cover, so as to achieve the stability of the cup cover on the mounting seat; and the mounting seat is provided with an opening, and the cup wall of the cup cover is provided with a raised bump, and the mounting seat is provided with a trigger switch above the opening, and after the cup cover is assembled to the mounting seat, the bump can pass through the opening and trigger the trigger switch to ensure that the cup cover is installed in place; the main unit also includes a shell, and the shell and the cup cover are installed in cooperation; wherein, the cup cover is provided with an L-shaped limit groove on the outer wall at the top end, and the shell is provided with a limit buckle on the inner wall at the bottom end; after the cup cover is assembled to the main unit, the cup cover can be rotated so that the limit buckle is assembled into the limit groove to limit the axial movement of the cup cover to ensure the stability between the two.

[0029] (III) Beneficial effects

[0030] Compared with the prior art, the utility model designs a knife assembly and a food processor.

[0031] (1) The utility model has a shaft sleeve connected to the cutter, and the shaft sleeve is sleeved on the cutter shaft. When processing food, only the shaft sleeve and the cutter will contact the food. When cleaning, the shaft sleeve and the cutter can be removed from the cutter shaft to complete the cleaning. The disassembly and assembly are simple, and the cleaning is more thorough, and it is not easy to breed bacteria.

[0032] (2) The utility model can realize the connection between the knife shaft and the knife through the cooperation of the first connecting part and the second connecting part, so that the movement of the knife shaft can drive the movement of the knife, thereby performing food processing operations; at the same time, the first connecting part and the second connecting part are anti-rotationally matched, so that the rotation of the knife shaft can drive the synchronous rotation of the knife, thereby cutting food;

[0033] (3) The utility model provides a sealing ring so that when the knife shaft drives the sleeve to retract into the main unit, the sealing ring can scrape the food on the sleeve and drop it into the cup body, thereby preventing food from being brought into the main unit and causing contamination inside the main unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 It is a structural schematic diagram of a tool assembly of the utility model;

[0036] Figure 2 An exploded view of a tool assembly of the utility model;

[0037] Figure 3 for Figure 2 The enlarged schematic diagram at A in the middle;

[0038] Figure 4 It is a schematic diagram of the assembly of the tool and the shaft sleeve of the utility model;

[0039] Figure 5 for Figure 4 The enlarged schematic diagram of point B in the middle;

[0040] Figure 6 It is a cross-sectional view of a tool assembly of the utility model;

[0041] Figure 7 for Figure 6 The enlarged schematic diagram at C in the middle;

[0042] Figure 8 Another cross-sectional view of a tool assembly of the utility model;

[0043] Fig. 9 for Figure 8 The enlarged schematic diagram at D in the middle;

[0044] Fig.10 It is an assembly cutaway diagram of the tool and the shaft sleeve of the utility model;

[0045] Fig.11 for Fig.10 The enlarged schematic diagram at E in the middle;

[0046] Fig.12 An exploded view of the food processor of the present invention;

[0047] Fig.13 for Fig.12 The enlarged schematic diagram at F in the middle;

[0048] Fig.14 for Fig.12 The enlarged schematic diagram at G in the middle;

[0049] Fig.15 This is an exploded view of the sealing cover, cup body and cup cover of the utility model;

[0050] Fig.16 It is an exploded view of the drive assembly and the tool assembly of the present invention.

[0051] The names of the components corresponding to the reference numerals in the figure are: 100, tool assembly; 10, tool shaft; 101, first connection portion; 101a, protrusion; 102, insertion shaft; 103, tool shaft body; 103a, mounting shaft portion; 104, connector; 104a, mounting sleeve; 11, tool; 111, second connection portion; 111a, recessed portion; 111b, abutment wall; 112, shaft portion; 112a, cavity; 113, opening portion; 12, sleeve; 121, cavity; 200 , main machine; 20, sealing cover; 201, perforation; 21, driving assembly; 211, driving motor; 212, reduction gear set; 213, screw; 22, sealing ring; 23, mounting seat; 231, snap fastener; 232, limit buckle; 233, opening; 24, trigger switch; 25, housing; 251, limit buckle; 300, cup body; 30, opening end; 31, convex rib; 400, cup cover; 40, handle; 41, snap groove; 42, anti-sliding block; 43, bump; 44, limit groove. DETAILED DESCRIPTION

[0052] The following is a further detailed description of the specific implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0053] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0055] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0056] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0057] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0058] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0059] like Figure 1-Figure 11As shown, an embodiment of the utility model provides a tool assembly, the tool assembly 100 includes a tool shaft 10; a tool 11; a sleeve 12, one end of which is connected to the tool 11; and a cavity 121 is provided inside the sleeve 12, and the tool shaft 10 can be adapted in the cavity 121, so that the sleeve 12 can move up and down along the axial direction of the tool shaft 10. In some embodiments, the sleeve 12 and the tool 11 are detachably connected, and the tool 11 can be replaced during use to meet various needs; and both can be removed for cleaning, which is more thorough and not easy to breed bacteria. With the above scheme, by connecting the sleeve 12 to the tool 11, the sleeve 12 is sleeved on the tool shaft 10, and when processing food, only the sleeve 12 and the tool 11 will come into contact with the food. When cleaning, the sleeve 12 and the tool 11 can be removed from the tool shaft 10 to complete the cleaning, which is simple to disassemble and assemble, and the cleaning is more thorough and not easy to breed bacteria.

[0060] In some embodiments, the knife shaft 10 is provided with a first connection portion 101 along one end of the axial direction thereof, and the knife 11 is provided with a second connection portion 111 that can cooperate with the first connection portion 101 to prevent rotation. With the above solution, the connection between the knife shaft 10 and the knife 11 can be achieved through the cooperation of the first connection portion 101 and the second connection portion 111, so that the movement of the knife shaft 10 can drive the movement of the knife 11, thereby performing food processing operations; at the same time, the first connection portion 101 and the second connection portion 111 cooperate to prevent rotation, so that the rotation of the knife shaft 10 can drive the synchronous rotation of the knife 11, thereby cutting food. In some embodiments, the first connecting portion 101 includes a plurality of protrusions 101a formed by the outer wall of the knife shaft 10 protruding outward, and the protrusions 101a are arranged at intervals along the circumference of the outer wall of the knife shaft 10; the second connecting portion 111 includes a plurality of recessed portions 111a formed by the inner wall of the knife 11 recessed inward, and the recessed portions 111a are arranged at intervals along the circumference of the inner wall of the knife 11, and the recessed portions 111a correspond to the protrusions 101a one by one. In some embodiments, an inner wall of the tool 11 is provided with an opening portion 113 below the recessed portion 111a, and the protrusion 101a can extend into the recessed portion 111a through the opening portion 113; and, the recessed portion 111a is recessed inward along two circumferential side walls so that an abutment wall 111b is formed around the opening portion 113. After the protrusion 101a extends into the recessed portion 111a, it rotates in one direction of rotation, so that the bottom end of the protrusion 101a can abut against the abutment wall 111b to limit the axial movement of the protrusion 101a, thereby realizing a fixed connection between the tool shaft 10 and the tool 11 to ensure the stability of the tool 11 when in use.

[0061] In some embodiments, the tool 11 and the sleeve 12 are detachably connected; the tool 11 includes a shaft portion 112 extending into the sleeve 12, a cavity 112a is provided inside the shaft portion 112, and the inner wall of the shaft portion 112 is provided with the second connection portion 111; the tool shaft 10 includes an extending shaft 102 that can be adapted to the cavity 112a, and the outer wall of the extending shaft 102 is provided with the first connection portion 101. In some embodiments, the shaft portion 112 and the inner wall of the sleeve 12 are threadedly connected to achieve a detachable connection between the tool 11 and the sleeve 12. In some embodiments, the tool shaft 10 includes a tool shaft body 103, and a connector 104 detachably connected to one end of the tool shaft body 103, and the connector 104 is provided with the first connection portion 101. In some embodiments, one end of the knife shaft body 103 is recessed inward to form a mounting shaft portion 103a, and the connector 104 includes a mounting sleeve 104a sleeved on the mounting shaft portion 103a, and the mounting sleeve 104a and the mounting shaft portion 103a are connected together by an axle pin. In some embodiments, the connector 104 includes a mounting sleeve 104a and an insertion shaft 102 integrally formed on the mounting sleeve 104a. With the above solution, the connector 104 and the knife shaft body 103 are detachably connected together by an axle pin, so they can be removed for cleaning, which is more thorough and not easy to breed bacteria.

[0062] like Figure 1-Figure 16 As shown, based on the same inventive concept, the embodiment of this specification also provides a food cooking machine, including a main machine 200, a cup body 300 connected to the main machine 200, and a knife assembly 100 as described above, which is arranged on the main machine 200 and can be inserted into the cup body 300. In some embodiments, the top end of the cup body 300 is provided with an open end 30, and the main machine 200 includes a sealing cover 20 capable of sealing the open end 30; the sealing cover 20 is provided with a through hole 201 for the sleeve 12 to pass through, so that the knife 11 is always placed outside the sealing cover 20; and the main machine 200 includes a driving assembly 21, which can drive the knife shaft 10 to drive the sleeve 12 and the knife 11 to perform telescopic movement along the axial direction of the knife shaft 10.

[0063] In some embodiments, a sealing ring 22 is disposed in the perforation 201 of the sealing cover 20, and the sealing ring 22 is sleeved on the shaft sleeve 12. With the above solution, the sealing ring 22 can scrape the food on the shaft sleeve 12 and drop it into the cup body 300 when the knife shaft 10 drives the shaft sleeve 12 to retract into the main machine 200, thereby preventing the food from being brought into the main machine 200 and causing contamination in the main machine 200.

[0064] In some embodiments, the driving assembly 21 includes a driving motor 211, and the output end of the driving motor 211 is connected to a reduction gear set 212; the output end of the reduction gear set 212 is connected to a screw 213, and the screw 213 is threadedly connected to the inner wall of the knife shaft 10. When the driving motor 211 drives the screw 213 to rotate, the screw 213 will drive the knife shaft 10 to perform a telescopic movement while rotating, so that it drives the knife 11 to extend into the cup body 300 and contact the food, thereby performing food processing operations.

[0065] In some embodiments, the sealing cover 20 is detachably connected to the host 200 . In some embodiments, the cup body 300 is provided with a cup cover 400, the outer wall of the cup cover 400 is provided with a handle 40, and the bottom end of the cup body 300 is provided with a special-shaped convex rib 31, and correspondingly, the bottom of the cup cover 400 is provided with a snap-fitting groove 41 capable of snapping the convex rib 31, so as to achieve locking between the cup body 300 and the cup cover 400, so as to ensure the stability of the food processor when in use; the host 200 includes a mounting seat 23 for mounting the sealing cover 20, and the mounting seat 23 is provided with a plurality of snap-fitting members 231 arranged in an annular manner, so as to snap-fit ​​around the periphery of the sealing cover 20, so as to achieve fixed installation of the sealing cover 20 on the mounting seat 23; the bottom end of the cup cover 400 is provided with an anti-sliding block 42, so as to improve the stability during food processing; and the outer periphery of the mounting seat 23 is provided with an inverted limiting buckle 232, and after the cup cover 400 is assembled on the host 200, the limiting buckle 232 is limited to the outer wall of the cup cover 400 , so as to achieve the stability of the cup cover 400 on the mounting seat 23; and, the mounting seat 23 is provided with an opening 233, and a raised bump 43 is provided on the cup wall of the cup cover 400, and the mounting seat 23 is provided with a trigger switch 24 above the opening 233. After the cup cover 400 is assembled to the mounting seat 23, the bump 43 can pass through the opening 233 and trigger the trigger switch 24 to ensure that the cup cover 400 is installed in place; the host 200 is also It includes a shell 25, and the shell 25 and the cup cover 400 are installed in cooperation; wherein, the cup cover 400 is provided with an L-shaped limit groove 44 on the outer wall at the top end thereof, and the shell 25 is provided with a limit buckle 251 on the inner wall at the bottom end thereof; after the cup cover 400 is assembled to the host 200, the cup cover 400 can be rotated so that the limit buckle 251 is assembled into the limit groove 44 to limit the axial movement of the cup cover 400 to ensure the stability between the two.

[0066] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0067] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A tool assembly, characterized in that: The tool assembly (100) comprises A knife shaft (10); Cutting tool (11); A shaft sleeve (12) has one end connected to the tool (11); and a cavity (121) is provided inside the shaft sleeve (12), and the tool shaft (10) can be fitted into the cavity (121), so that the shaft sleeve (12) can move up and down along the axial direction of the tool shaft (10).

2. The tool assembly according to claim 1, characterized in that: The knife shaft (10) is provided with a first connecting portion (101) along one end of its axial direction, and the knife (11) is provided with a second connecting portion (111) capable of engaging with the first connecting portion (101) to prevent rotation.

3. The tool assembly according to claim 2, characterized in that: The first connecting portion (101) comprises a plurality of protrusions (101a) formed by the outer wall of the knife shaft (10) protruding outwards, and the protrusions (101a) are arranged at intervals along the circumference of the outer wall of the knife shaft (10); the second connecting portion (111) comprises a plurality of recessed portions (111a) formed by the inner wall of the knife (11) being recessed inwards, and the recessed portions (111a) are arranged at intervals along the circumference of the inner wall of the knife (11), and the recessed portions (111a) correspond one to one to the protrusions (101a).

4. The tool assembly according to claim 2, characterized in that: The tool (11) and the shaft sleeve (12) are detachably connected; the tool (11) comprises a shaft portion (112) extending into the shaft sleeve (12), a cavity (112a) being provided inside the shaft portion (112), and the inner wall of the shaft portion (112) is provided with the second connecting portion (111); the tool shaft (10) comprises an inserting shaft (102) capable of being adapted in the cavity (112a), and the outer wall of the inserting shaft (102) is provided with the first connecting portion (101).

5. The tool assembly according to claim 2, characterized in that: The blade shaft (10) comprises a blade shaft body (103) and a connecting head (104) detachably connected to one end of the blade shaft body (103), and the first connecting portion (101) is provided on the connecting head (104).

6. The tool assembly according to claim 5, characterized in that: One end portion of the knife shaft body (103) is recessed inward to form a mounting shaft portion (103a), and the connecting head (104) includes a mounting sleeve (104a) sleeved on the mounting shaft portion (103a), and the mounting sleeve (104a) and the mounting shaft portion (103a) are connected together via a shaft pin.

7. A food processor, characterized in that: The invention comprises a main machine (200), a cup body (300) connected to the main machine (200), and a tool assembly (100) as described in any one of claims 1 to 6 and arranged on the main machine (200) and capable of extending into the cup body (300).

8. The food processor according to claim 7, characterized in that: The top end of the cup body (300) is provided with an open end (30), and the main machine (200) includes a sealing cover (20) capable of sealing the open end (30); the sealing cover (20) is provided with a through hole (201) for the sleeve (12) to pass through, so that the tool (11) is always placed on the outside of the sealing cover (20); and the main machine (200) includes a driving component (21), and the driving component (21) is capable of driving the knife shaft (10) to drive the sleeve (12) and the knife (11) to perform telescopic movement along the axial direction of the knife shaft (10).

9. The food processor according to claim 8, characterized in that: A sealing ring (22) is arranged in the through hole (201) of the sealing cover (20), and the sealing ring (22) is sleeved on the shaft sleeve (12).

10. The food processor according to claim 8, characterized in that: The sealing cover (20) is detachably connected to the main machine (200).