Tool recognition mechanism, electric cooking appliance, replaceable component recognition mechanism

Abstract

The present application relates to a cutter identification mechanism, an electric cooking device, a replaceable part identification mechanism, a cutter including a container and cutters penetrating into the container from outside, and further including elastic members and a pressure sensor, the cutters being provided in multiple; each cutter is installed on the container in a matched and replaceable manner; at least one cutter is provided with a contact surface; different cutters with contact surfaces have different corresponding contact surface positions; at least one cutter with a contact surface, when installed on the container, has a first end of the elastic member directly or indirectly abutting against the contact surface of the cutter with the contact surface, and a second end of the elastic member directly or indirectly abutting against the pressure sensor. The cutter can be identified; the identification mechanism is not easy to be damaged when the cutter is in a high-temperature and high-speed state, has good stability, high accuracy and simple and reasonable structure.

Description

Technical Field

[0001] This invention relates to the field of tool identification technology, and in particular to a tool identification mechanism and a replaceable part identification mechanism.

[0002] This invention also relates to the field of electric cooking appliances, and more particularly to an electric cooking appliance. Background Technology

[0003] Chinese patent application number 201410005535.8 discloses a food processor, while applications 201610343110.7 and 201610348656.1 disclose methods for intelligently controlling a food processor and remotely intelligently controlling a food processor, respectively. This product has multiple functions, including stirring, kneading, and blending, requiring the replacement of different blades to achieve these functions. If a user makes a mistake when changing blades, the blade intended for function A may be used for function B, leading to operational errors. Therefore, blade recognition is necessary. However, due to limitations in the working environment and temperature, existing technologies in this field do not include blade recognition technology.

[0004] Current tool identification technologies in other fields generally use radio frequency identification (RFID); however, applying RFID technology to this field is problematic because high speed and high temperature can easily damage the chip, and the accuracy of identification cannot be guaranteed. Summary of the Invention

[0005] The purpose of this invention is to provide a tool identification mechanism that can identify tools.

[0006] This invention provides a knife identification mechanism, including a container and a knife inserted into the container from the outside, as well as an elastic element and a pressure sensor. Multiple knives are provided, and replacing a component on a knife is also considered replacing the knife. Each knife is replaceably mounted on the container. At least one knife has a contact surface; different knives with contact surfaces have different contact surface positions. When at least one knife with a contact surface is mounted on the container, the first end of the elastic element abuts against the contact surface of that knife directly or indirectly, and the second end of the elastic element abuts against the pressure sensor directly or indirectly. The container, as defined in this patent, refers to a container capable of holding materials, including pots, stirring cups, etc. The externally driven knife insertion structure means that the knife passes through the container wall or directly enters the container from the container opening, with its working end located inside the container and the rear half of the knife extending outside the container and driven by a drive device located outside the container to move the working end of the knife. The replaceable knife is installed on the container. The methods include: direct replacement without disassembling the equipment, and replacement by disassembling the equipment; at least one cutter has a contact surface, meaning that all cutters or only some cutters may have contact surfaces; different cutters with contact surfaces have different contact surface positions, meaning that the distance between the contact surface and the pressure sensor is different when the equipment is installed; at least one cutter with a contact surface is installed on the container, and the first end of the elastic element abuts against the contact surface of the cutter with the contact surface directly or indirectly, and the second end of the elastic element abuts against the pressure sensor directly or indirectly. That is, when multiple cutters are installed on the container, the elastic element deforms when at least one cutter is installed, applying pressure to the pressure sensor. Alternatively, when multiple cutters are installed on the container, the elastic element may deform elastically, applying pressure to the pressure sensor. However, the pressure applied to the pressure sensor may vary depending on the cutter; the position of the pressure sensor is fixed. In other words, at least when the container is mounted on the container stand, the pressure sensor is fixed in position relative to the container. The pressure sensor can be fixed directly to the container or to the container stand used to mount the container.

[0007] Furthermore, when the cutter is mounted on the container, the elastic element, pressure sensor, and the contact surface of the cutter are all located outside the container. This avoids having too many facilities inside the container, which would affect its use, and also reduces the number of communication ports between the inside and outside of the container, thus avoiding the use of multiple sealing rings.

[0008] Furthermore, the container wall has a hole; the cutting tool includes a tubular stator detachably fixed to the hole and a rotor rotatably mounted within the stator; a step is provided on the outer surface of the stator of the cutting tool, and the side of the step facing away from the container interior serves as the contact surface. This side can be perpendicular to or inclined to the outer wall of the stator; the specific structure of the step can be: the circumscribed circle of the stator's outer contour closer to the container interior is thicker than the circumscribed circle of the side farther from the container interior, and the step is formed at the junction of the two; or it can be: an annular protrusion is formed on the stator, and the side of the annular protrusion facing away from the container interior serves as the step; different cutting tools with contact surfaces have different distances between the side of the step facing away from the container interior and the pressure sensor. The overall structure is simple and reasonable.

[0009] Furthermore, it also includes a bottom shell, which is fixed to the lower side of the container bottom, and an installation space is formed between the bottom shell and the container bottom; the first hole is located at the bottom of the container, and the bottom shell has a second hole corresponding to the first hole; the sliding plate is provided with a third hole corresponding to the first hole; the portion of the cutter below the contact surface passes through the third hole, and the outer contour of the cutter above the contact surface is larger than the third hole and is limited to not passing through the third hole; the sliding plate abuts against the first end of the elastic element directly or indirectly; the bottom shell is also provided with a plurality of longitudinal guide rods extending upward around the second hole; it also includes a sliding plate that slides up and down on the longitudinal guide rods; a spring is also installed on the longitudinal guide rod, the upper end of the spring is supported on the lower surface of the sliding plate, the lower end of the spring is supported on the upper surface of the bottom shell, and the upper surface of the sliding plate abuts against the lower part of the contact surface. The portion of the cutter below the contact surface passes through the third hole, and the contact surface presses down the sliding plate, which facilitates cutter replacement; and it has good stability and is not easy to damage the cutter identification mechanism when replacing the cutter.

[0010] Furthermore, it also includes a container seat for mounting the container, the container seat having a longitudinal mounting hole, the pressure sensor fixed to the bottom of the longitudinal mounting hole, the elastic element installed inside the longitudinal mounting hole, and a longitudinally oriented push rod fixed to the lower surface of the sliding plate; when the container is mounted on the container seat, the lower end of the push rod abuts against the first end of the elastic element. The container seat is generally waterproof, but the bottom shell has multiple openings, and the cutter rotor requires a transmission mechanism, making waterproofing difficult; this structure not only avoids placing the circuitry inside the container seat but also prevents excessive weight gain on the container.

[0011] Unlike the above-described further solutions, the knife identification mechanism can also be: when the knife is installed on the container, the contact surface is located inside the container, and the elastic element and pressure sensor are located outside the container; it also includes a contact rod, and the container wall has a hole four adapted for the contact rod to pass through, and the contact rod passes through the hole four; one end of the contact rod inside the container directly or indirectly abuts against the contact surface, and the other end of the contact rod outside the container directly or indirectly abuts against the first end of the elastic element.

[0012] Furthermore, a hole is formed in the wall of the container; the cutting tool includes a tubular stator detachably fixed in the hole, and a rotor rotatably mounted within the stator; the rotor includes a shaft and a cutting head detachably connected to the shaft, the cutting head being located inside the container; a ring is rotatably connected to the cutting head, the ring being located inside the container, and the side of the ring facing the inner wall of the container serving as the contact surface; different cutting tools with contact surfaces have different distances between the side of the ring facing the inner wall of the container and the inner wall of the container. This solution is applicable to cutting tool replacement schemes where the cutting head is replaced directly inside the container.

[0013] Furthermore, it also includes a bottom shell, which is fixed to the lower side of the bottom of the container, and an installation space is formed between the bottom shell and the bottom of the container; the bottom shell has a second hole corresponding to the first hole; the first hole is located at the bottom of the container; it also includes a sliding piece, which has a third hole, through which the stator passes, and the sliding piece slides up and down on the stator using the stator as a sliding rod; the sliding piece is supported by a spring between it and the bottom shell; the lower end of the contact rod is fixed to the sliding piece, and the sliding piece abuts against the first end of the elastic element directly or indirectly. The overall structure is simple and reasonable, and safe and convenient to use.

[0014] Furthermore, a ring-shaped heating unit is fixed around the hole one on the bottom outer surface of the container, and the ring-shaped heating unit is located within the installation space; the hole one corresponds to the circular hole in the middle of the ring-shaped heating unit; when the tool is fixed on the container, an annular cavity is formed between the ring-shaped heating unit and the tool; the sliding plate is adapted to be movably installed within the annular cavity. The ring-shaped heating unit can be used to limit the position of the spring, and the overall structure is simple and reasonable.

[0015] Furthermore, it also includes a container seat for mounting the container, the container seat having a longitudinal mounting hole, the pressure sensor fixed to the bottom of the longitudinal mounting hole, the elastic element installed inside the longitudinal mounting hole, and a longitudinally oriented push rod fixed to the lower surface of the sliding plate; when the container is mounted on the container seat, the lower end of the push rod abuts against the first end of the elastic element. The container seat is generally waterproof, but the bottom shell has multiple openings, and the cutter rotor requires a transmission mechanism, making waterproofing difficult; this structure not only avoids placing the circuitry inside the container seat but also prevents excessive weight gain on the container.

[0016] Furthermore, it also includes a control unit, which is electrically connected to the pressure sensor, and the control unit determines the type of the cutting tool mounted on the device based on the range of pressure values ​​provided by the pressure sensor.

[0017] The primary purpose of this technology is to support the use of electric cooking appliances, but it is not limited to electric cooking appliances. It can also be an identification mechanism for any other replaceable parts, as detailed below:

[0018] This invention provides an electric cooker, including a container and a knife inserted into the container from the outside. The cooker is characterized by further including an elastic element and a pressure sensor. Multiple knives are provided, each knives being interchangeably mounted on the container. At least one knife has a contact surface. Different knives with contact surfaces have different contact surface positions. When at least one knife with a contact surface is mounted on the container, the first end of the elastic element abuts against the contact surface of that knife directly or indirectly, and the second end of the elastic element abuts against the pressure sensor directly or indirectly. The pressure sensor is positioned in a fixed location. The pressure sensor is fixed to the container or to a container base for supporting the container.

[0019] This invention also provides a mechanism for identifying replaceable components, including replaceable components and a mounting base for mounting the replaceable components. The mechanism further includes an elastic element and a pressure sensor. Multiple replaceable components are provided, each replaceable component being interchangeably mounted on the mounting base. At least one replaceable component has a contact surface. Different replaceable components with contact surfaces have different contact surface positions. When at least one replaceable component with a contact surface is mounted on the mounting base, the first end of the elastic element abuts against the contact surface of that replaceable component directly or indirectly, and the second end of the elastic element abuts against the pressure sensor directly or indirectly. The pressure sensor is positioned in a fixed location. The pressure sensor is fixed to the mounting base or to a facility that supports the mounting base.

[0020] Operating principle: Taking a knife identification mechanism as an example, when a knife is installed into a container, the different contact surfaces of different knives result in varying degrees of compression on the elastic element. If the elastic element is a torsion spring or a tension spring, it corresponds to different degrees of torsion or tension. Therefore, the pressure sensed by the pressure sensor will also differ. The control unit determines the type of knife installed on the device based on the range of pressure values ​​provided by the pressure sensor.

[0021] The beneficial effects of the technical solution provided by this invention are: 1. It can identify cutting tools; 2. The identification mechanism is not easily damaged when the cutting tool is at high temperature and high speed, and its stability is better than that of radio frequency identification technology; 3. It has higher accuracy than that of radio frequency identification technology; 4. Compared with electronic tag identification technology with direct electrical connection, it does not require setting up a circuit connected to the cutting tool, and its structure is simple and reasonable. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the internal structure of Embodiment 1 of the present invention.

[0023] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0024] Figure 3 for Figure 2 Enlarged view of point A1 in the middle.

[0025] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of the present invention.

[0026] Figure 5 for Figure 4 A schematic diagram of the structure of A in the middle. Detailed Implementation

[0027] The present invention will be further described below with reference to the embodiments. Example 1

[0028] like Figures 1 to 3As shown, this embodiment discloses a knife recognition device for an electric cooking appliance, including a container 1 and a knife 2 inserted into the container 1 from the outside, as well as an elastic element 3 and a pressure sensor 4. Multiple knives 2 are provided; each knife 2 is matched and interchangeably mounted on the container 1; at least one knife 2 is provided with a contact surface 200; different knives 2 with contact surfaces 200 have different corresponding contact surface 200 positions; when at least one knife 2 with a contact surface 200 is mounted on the container 1, the first end of the elastic element 3 directly or indirectly contacts the knife 2. The contact surfaces 200 of the cutting tool 2 abut against each other, and the second end of the elastic element 3 abuts against the pressure sensor 4 directly or indirectly; the structure of the externally driven cutting tool 2 extending into the container 1 means that the cutting tool 2 passes through the wall of the container 1 or directly enters the container 1 from the opening of the container 1, with its working end located inside the container 1, and the rear half of the cutting tool 2 extending out of the container 1 and driven by a driving device located outside the container 1 to drive the working end of the cutting tool 2 to run; the replacement method of the cutting tool 2, which can be replaced and installed on the container 1, includes: direct replacement without disassembling the equipment, and also includes... Replacement is performed via disassembly equipment; at least one cutter 2 is provided with a contact surface 200, meaning that all of the multiple cutters 2 may have a contact surface 200, or only some of the cutters 2 may have a contact surface 200; different cutters 2 with contact surfaces 200 have different corresponding contact surface 200 positions, meaning that when the equipment is installed, the distance between the contact surface 200 and the pressure sensor 4 is different; at least one cutter 2 with a contact surface 200 is installed on the container 1, and the first end of the elastic member 3 directly or indirectly contacts the cutter 2 with the contact surface 200. The second end of the elastic element 3 abuts against the pressure sensor 4 directly or indirectly. That is, when multiple blades 2 are installed on the container 1, at least when one blade 2 is installed, the elastic element 3 deforms, applying pressure to the pressure sensor 4. Alternatively, when multiple blades 2 are installed on the container 1, the elastic element 3 can undergo elastic deformation, all applying pressure to the pressure sensor 4, but the pressure applied to the pressure sensor 4 will not be exactly the same depending on the blades 2. The position of the pressure sensor 4 is fixed. That is, at least when the container 1 is installed on the container seat 7, the position of the pressure sensor 4 relative to the container 1 is fixed. The pressure sensor 4 can be directly fixed to the container 1 or fixed to the container seat 7 used to install the container 1.

[0029] When the cutter 2 is mounted on the container 1, the elastic element 3, the pressure sensor 4, and the contact surface 200 of the cutter 2 are all located on the outside of the container 1. This avoids having too many facilities inside the container 1, which would affect its use, and also reduces the number of communication ports between the inside and outside of the container 1, thus avoiding the use of multiple sealing rings.

[0030] The container 1 has a hole 11 in its wall; the cutter 2 includes a tubular stator 21 detachably fixed in the hole 11, and a rotor 22 rotatably installed inside the stator 21; a step is provided on the outer surface of the stator 21 of the cutter 2, and the side of the step facing away from the inside of the container 1 serves as the contact surface 200. The side facing away from the inside of the container 1 can be perpendicular to or inclined to the outer wall of the stator 21; the specific structure of the step can be: the circumscribed circle of the outer contour of the stator 21 closer to the inside of the container 1 is thicker than the circumscribed circle of the side farther from the inside of the container 1, and the step is formed at the joint of the two; or: an annular protrusion is formed on the stator 21, and the side of the annular protrusion facing away from the inside of the container 1 serves as the step; different cutters 2 with contact surfaces 200 have different distances between the side of the step facing away from the inside of the container 1 and the pressure sensor 4. The overall structure is simple and reasonable.

[0031] It also includes a bottom shell 5, which is fixed to the lower side of the bottom of the container 1, and an installation space 500 is formed between the bottom shell 5 and the bottom of the container 1; the first hole 11 is located at the bottom of the container 1, and the bottom shell 5 has a second hole 51 corresponding to the first hole 11; the sliding plate 6 is provided with a third hole 61 corresponding to the first hole 11; the portion of the cutter 2 below the contact surface 200 passes through the third hole 61, and the outer contour of the cutter 2 above the contact surface 200 is larger than the third hole 61 and is therefore restricted from passing through. The third hole 61; the sliding piece 6 abuts against the first end of the elastic element 3 directly or indirectly; the bottom shell 5 is also provided with a plurality of longitudinal guide rods 52 extending upward around the second hole 51; it also includes a sliding piece 6 that slides up and down on the longitudinal guide rods 52; a spring 53 is also installed on the longitudinal guide rods 52, the upper end of the spring 53 is supported on the lower surface of the sliding piece 6, the lower end of the spring 53 is supported on the upper surface of the bottom shell 5, and the upper surface of the sliding piece 6 abuts against the lower part of the contact surface 200. The part of the cutter 2 below the contact surface 200 passes through the third hole 61, and the contact surface 200 presses down the sliding piece 6, which facilitates the replacement of the cutter 2; and it has good stability and is not easy to damage the cutter identification mechanism when replacing the cutter 2.

[0032] It also includes a container seat 7 for mounting the container 1. The container seat 7 has a longitudinal mounting hole 71. The pressure sensor 4 is fixed to the bottom of the longitudinal mounting hole 71. The elastic element 3 is installed inside the longitudinal mounting hole 71. A longitudinally oriented push rod 8 is fixed to the lower surface of the sliding plate 6. When the container 1 is mounted on the container seat 7, the lower end of the push rod 8 abuts against the first end of the elastic element 3. The container seat 7 is generally waterproof, but the bottom shell 5 has multiple openings, and the rotor 22 of the cutter 2 requires a transmission mechanism, making it difficult to achieve waterproofing. This structure not only avoids placing the circuitry inside the container seat 7 but also prevents excessive weight increase for the container 1.

[0033] It also includes a control unit, which is electrically connected to the pressure sensor 4, and the control unit determines the type of the cutter 2 mounted on the device based on the range of pressure values ​​provided by the pressure sensor 4. Example 2

[0034] like Figure 4 and Figure 5 As shown, this embodiment discloses a knife recognition device for an electric cooking appliance, including a container 1 and a knife 2 inserted into the container 1 from the outside, as well as an elastic element 3 and a pressure sensor 4. Multiple knives 2 are provided; each knife 2 is matched and interchangeably mounted on the container 1; at least one knife 2 is provided with a contact surface 200; different knives 2 with contact surfaces 200 have different corresponding contact surface 200 positions; when at least one knife 2 with a contact surface 200 is mounted on the container 1, the first end of the elastic element 3 directly or indirectly contacts the knife 2. The contact surfaces 200 of the cutting tool 2 abut against each other, and the second end of the elastic element 3 abuts against the pressure sensor 4 directly or indirectly; the structure of the externally driven cutting tool 2 extending into the container 1 means that the cutting tool 2 passes through the wall of the container 1 or directly enters the container 1 from the opening of the container 1, with its working end located inside the container 1, and the rear half of the cutting tool 2 extending out of the container 1 and driven by a driving device located outside the container 1 to drive the working end of the cutting tool 2 to run; the replacement method of the cutting tool 2, which can be replaced and installed on the container 1, includes: direct replacement without disassembling the equipment, and also includes... Replacement is performed via disassembly equipment; at least one cutter 2 is provided with a contact surface 200, meaning that all of the multiple cutters 2 may have a contact surface 200, or only some of the cutters 2 may have a contact surface 200; different cutters 2 with contact surfaces 200 have different corresponding contact surface 200 positions, meaning that when the equipment is installed, the distance between the contact surface 200 and the pressure sensor 4 is different; at least one cutter 2 with a contact surface 200 is installed on the container 1, and the first end of the elastic member 3 directly or indirectly contacts the cutter 2 with the contact surface 200. The second end of the elastic element 3 abuts against the pressure sensor 4 directly or indirectly. That is, when multiple blades 2 are installed on the container 1, at least when one blade 2 is installed, the elastic element 3 deforms, applying pressure to the pressure sensor 4. Alternatively, when multiple blades 2 are installed on the container 1, the elastic element 3 can undergo elastic deformation, all applying pressure to the pressure sensor 4, but the pressure applied to the pressure sensor 4 will not be exactly the same depending on the blades 2. The position of the pressure sensor 4 is fixed. That is, at least when the container 1 is installed on the container seat 7, the position of the pressure sensor 4 relative to the container 1 is fixed. The pressure sensor 4 can be directly fixed to the container 1 or fixed to the container seat 7 used to install the container 1.

[0035] When the cutter 2 is installed on the container 1, the contact surface 200 is located inside the container 1, and the elastic element 3 and pressure sensor 4 are located outside the container 1; it also includes a contact rod 9, and the wall of the container 1 has a hole 12 adapted to allow the contact rod 9 to pass through, and the contact rod 9 passes through the hole 12; one end of the contact rod 9 inside the container 1 directly or indirectly abuts against the contact surface 200, and the other end of the contact rod 9 outside the container 1 directly or indirectly abuts against the first end of the elastic element 3.

[0036] The container 1 has a hole 11 in its wall. The cutting tool 2 includes a tubular stator 21 detachably fixed to the hole 11 and a rotor 22 rotatably mounted within the stator 21. The rotor 22 includes a shaft 221 and a cutting head 222 detachably connected to the shaft 221, the cutting head 222 being located inside the container 1. A ring 223 is rotatably connected to the cutting head 222, the ring 223 being located inside the container 1, and the side of the ring 223 facing the inner wall of the container 1 serving as the contact surface 200. Different cutting tools 2 with contact surfaces 200 have different distances between the side of the ring 223 facing the inner wall of the container 1 and the inner wall of the container 1. This solution is applicable to cutting tool 2 replacement schemes where the cutting head 222 can be replaced directly inside the container 1.

[0037] It also includes a bottom shell 5, which is fixed to the lower side of the bottom of the container 1, and an installation space 500 is formed between the bottom shell 5 and the bottom of the container 1; the bottom shell 5 has a second hole 51 corresponding to the first hole 11; the first hole 11 is located at the bottom of the container 1; it also includes a sliding piece 6, which has a third hole 61, through which the stator 21 passes, and the sliding piece 6 slides up and down on the stator 21 using the stator 21 as a sliding rod; the sliding piece 6 is supported by a spring 53 between it and the bottom shell 5; the lower end of the contact rod 9 is fixed to the sliding piece 6, and the sliding piece 6 abuts against the first end of the elastic element 3 directly or indirectly. The overall structure is simple and reasonable, and safe and convenient to use.

[0038] A ring-shaped heating unit 13 is fixed around the hole 11 on the bottom outer surface of the container 1. The ring-shaped heating unit 13 is located within the installation space 500. The hole 11 corresponds to the central hole of the ring-shaped heating unit 13. When the cutter 2 is fixed on the container 1, an annular cavity 130 is formed between the ring-shaped heating unit 13 and the cutter 2. The sliding plate 6 is adapted to be movably installed within the annular cavity 130. The ring-shaped heating unit 13 can be used to limit the position of the spring 53, and the overall structure is simple and reasonable.

[0039] It also includes a container seat 7 for mounting the container 1. The container seat 7 has a longitudinal mounting hole 71. The pressure sensor 4 is fixed to the bottom of the longitudinal mounting hole 71. The elastic element 3 is installed inside the longitudinal mounting hole 71. A longitudinally oriented push rod 8 is fixed to the lower surface of the sliding plate 6. When the container 1 is mounted on the container seat 7, the lower end of the push rod 8 abuts against the first end of the elastic element 3. The container seat 7 is generally waterproof, but the bottom shell 5 has multiple openings, and the rotor 22 of the cutter 2 requires a transmission mechanism, making it difficult to achieve waterproofing. This structure not only avoids placing the circuitry inside the container seat 7 but also prevents excessive weight increase for the container 1.

[0040] It also includes a control unit, which is electrically connected to the pressure sensor 4, and the control unit determines the type of the cutter 2 mounted on the device based on the range of pressure values ​​provided by the pressure sensor 4.

[0041] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A knife identification mechanism, comprising a container and a knife penetrating into the container from the outside, characterized in that, It also includes an elastic element and a pressure sensor. The cutting tools are configured in multiple ways, and each cutting tool is matched and replaceable and installed on the container. At least one cutting tool is provided with a contact surface. Different cutting tools with contact surfaces have different corresponding contact surface positions. When the cutting tool with contact surface is installed on the container, the first end of the elastic element abuts against the contact surface of the cutting tool with contact surface directly or indirectly, and the second end of the elastic element abuts against the pressure sensor directly or indirectly.

2. The tool identification mechanism according to claim 1, characterized in that, When the cutting tool is mounted on the container, the elastic element, pressure sensor, and the contact surface of the cutting tool are all located outside the container.

3. The tool identification mechanism according to claim 1, characterized in that, The container wall has a hole; the cutter includes a tubular stator that is detachably fixed in the hole and a rotor that is rotatably installed in the stator; a ring of steps is provided on the outer surface of the stator of the cutter, and the side of the steps facing away from the inside of the container serves as the contact surface; different cutters with contact surfaces have different distances between the side of the steps facing away from the inside of the container and the pressure sensor.

4. The tool identification mechanism according to claim 3, characterized in that, It also includes a bottom shell, which is fixed to the lower side of the bottom of the container, and an installation space is formed between the bottom shell and the bottom of the container; the first hole is located at the bottom of the container, and the bottom shell has a second hole corresponding to the first hole; it also includes a sliding piece that slides up and down on a longitudinal guide rod; the sliding piece is provided with a third hole corresponding to the first hole; the portion of the cutter below the contact surface passes through the third hole, and the outer contour of the cutter above the contact surface is larger than the third hole and is limited to not passing through the third hole; the sliding piece abuts against the first end of the elastic element directly or indirectly; the bottom shell is also provided with a plurality of longitudinal guide rods extending upward around the second hole; a spring is also installed on the longitudinal guide rod, the upper end of the spring is supported on the lower surface of the sliding piece, the lower end of the spring is supported on the upper surface of the bottom shell, and the upper surface of the sliding piece abuts against the lower part of the contact surface.

5. The tool identification mechanism according to claim 4, characterized in that, It also includes a container seat for mounting the container, the container seat having a longitudinal mounting hole, the pressure sensor being fixed at the bottom of the longitudinal mounting hole, the elastic element being installed inside the longitudinal mounting hole, and a longitudinally oriented push rod being fixed to the lower surface of the sliding plate; when the container is mounted on the container seat, the lower end of the push rod abuts against the first end of the elastic element.

6. The tool identification mechanism according to claim 1, characterized in that, When the cutting tool is mounted on the container, the contact surface is located inside the container, and the elastic element and pressure sensor are located outside the container; it also includes a contact rod, and the wall of the container has a hole four adapted for the contact rod to pass through, and the contact rod passes through the hole four; the end of the contact rod inside the container directly or indirectly abuts against the contact surface, and the end of the contact rod outside the container directly or indirectly abuts against the first end of the elastic element.

7. The tool identification mechanism according to claim 6, characterized in that, The container has a hole in its wall; the cutting tool includes a tubular stator detachably fixed in the hole and a rotor rotatably mounted inside the stator; the rotor includes a shaft and a cutting head detachably connected to the shaft, the cutting head being located inside the container; a ring is rotatably connected to the cutting head, the ring being located inside the container, and the side of the ring facing the inner wall of the container serving as the contact surface; for different cutting tools with contact surfaces, the distance between the side of the ring facing the inner wall of the container and the inner wall of the container is different.

8. The tool identification mechanism according to claim 7, characterized in that, It also includes a bottom shell, which is fixed to the lower side of the bottom of the container, and an installation space is formed between the bottom shell and the bottom of the container; the bottom shell has a second hole corresponding to the first hole; the first hole is located at the bottom of the container; it also includes a sliding plate, which has a third hole, through which the stator passes, and the sliding plate slides up and down on the stator using the stator as a sliding rod; the sliding plate is supported by a spring between it and the bottom shell; the lower end of the contact rod is fixed to the sliding plate, and the sliding plate abuts against the first end of the elastic element directly or indirectly.

9. The tool identification mechanism according to claim 8, characterized in that, A ring-shaped heating unit is fixed around the hole one on the bottom outer surface of the container, and the ring-shaped heating unit is located in the installation space; the hole one corresponds to the circular hole in the middle of the ring-shaped heating unit; when the knife is fixed on the container, an annular cavity is formed between the ring-shaped heating unit and the knife; the sliding plate is adapted to be movably installed in the annular cavity.

10. The tool identification mechanism according to claim 9, characterized in that, It also includes a container seat for mounting the container, the container seat having a longitudinal mounting hole, the pressure sensor being fixed at the bottom of the longitudinal mounting hole, the elastic element being installed inside the longitudinal mounting hole, and a longitudinally oriented push rod being fixed to the lower surface of the sliding plate; when the container is mounted on the container seat, the lower end of the push rod abuts against the first end of the elastic element.

11. The tool identification mechanism according to any one of claims 1-10, characterized in that, It also includes a control unit, which is electrically connected to the pressure sensor, and the control unit determines the type of the cutter mounted on the device based on the range of pressure values ​​provided by the pressure sensor.

12. An electric cooking appliance, comprising a container and a knife inserted into the container from the outside, characterized in that, It also includes an elastic element and a pressure sensor. The cutting tools are configured in multiple ways, and each cutting tool is matched and interchangeable and installed on the container. At least one cutting tool is provided with a contact surface. Different cutting tools with contact surfaces have different contact surface positions. When the cutting tool with contact surface is installed on the container, the first end of the elastic element abuts against the contact surface of the cutting tool with contact surface directly or indirectly, and the second end of the elastic element abuts against the pressure sensor directly or indirectly. The position of the pressure sensor is limited to a fixed position.

13. A mechanism for identifying a replaceable component, comprising a replaceable component and a mounting base for mounting the replaceable component, characterized in that, It also includes an elastic element and a pressure sensor. Multiple replaceable components are provided, each replaceable component being interchangeably mounted on the mounting base. At least one replaceable component has a contact surface. Different replaceable components with contact surfaces have different contact surface positions. When a replaceable component with a contact surface is mounted on the mounting base, the first end of the elastic element abuts against the contact surface of the replaceable component with the contact surface directly or indirectly, and the second end of the elastic element abuts against the pressure sensor directly or indirectly. The position of the pressure sensor is fixed.

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