A processing knife assembly assembly structure and a blender

Abstract

The application discloses a processing knife assembly assembling structure and a blender. The processing knife assembly assembling structure comprises a mounting seat, a processing knife assembly and a locking piece. The mounting seat has a first end and a second end, and is provided with a mounting groove. The mounting groove is penetrated from the first end to the second end. The processing knife assembly comprises a knife holder and a processing knife. The processing knife is rotatably installed on the knife holder through a knife shaft. The knife holder is inserted into the mounting groove from the first end and extends from the second end. The knife holder is provided with a locking part. The locking piece is rotatably installed on the second end. When the knife holder extends from the second end, the locking piece rotates to be detachably connected with the locking part, so that the knife holder is locked with the mounting seat. The blender comprises a processing cup and the processing knife assembly assembling structure. The processing cup is detachably installed on the mounting seat. The mounting seat is provided with a heating piece. The heating piece is located outside the mounting groove. The processing knife assembly and the mounting seat are disassembled through the locking piece and the locking part of the knife holder. The operation is convenient.

Description

Technical Field

[0001] This invention relates to the field of food preparation technology, and in particular to a processing knife assembly structure and a mixer. Background Technology

[0002] Currently, juicers, baby food processors, food processors, blenders, etc. are generally used for processing ingredients such as fruits, vegetables, and baby food. They are mainly made by setting up a processing blade assembly inside the processing cup, and then using a motor to drive the processing blade to rotate.

[0003] Since the processing blade assembly usually needs to be cleaned after processing the food, or different processing blades need to be replaced according to different food processing needs, the existing processing blade assembly and the machine body are generally detachable. However, in order to achieve detachability, the existing processing blade assembly mainly uses screws or bolts for installation, which requires the use of external parts for disassembly and assembly, making the operation inconvenient. Summary of the Invention

[0004] In order to overcome at least one of the defects of the prior art, the present invention provides a processing blade assembly and a mixer, wherein the processing blade assembly and the mounting base are disassembled and assembled by a locking member and the locking part of the blade holder itself, which is convenient to operate.

[0005] The technical solution adopted by this invention to solve its problem is: A machining tool assembly structure, comprising, The mounting base has a first end and a second end, and the mounting base is provided with a mounting groove that extends from the first end to the second end. A machining tool assembly includes a tool holder and a machining tool, wherein the machining tool is rotatably mounted on the tool holder via a tool shaft; the tool holder is inserted into the mounting groove from the first end and extends out from the second end; the tool holder is provided with a locking part; A locking member is rotatably mounted on the second end and is used to rotate near the locking part after the tool holder extends from the second end, and is detachably connected to the locking part to lock the tool holder to the mounting base.

[0006] Furthermore, a limiting post is provided on the second end, and a limiting groove is provided on the locking member. The limiting post passes through the limiting groove and is used to slide with the limiting groove when the locking member rotates.

[0007] Furthermore, the locking member is provided with a locking block, and the tool holder is provided with a locking groove; the locking block is used to engage with or disengage from the locking groove during the rotation of the locking member.

[0008] Furthermore, the locking groove has an open end, which is used to correspond to the locking block after the tool holder is inserted into the mounting groove. The open end is used to guide the locking block to engage or disengage from the locking groove when the locking member rotates. The locking member has a guide step that extends along the rotation direction of the locking member. The locking block is located at the end of the guide step. The second end has a guide portion, which is used to slide with the guide step when the locking member rotates to guide the locking member to move up and down. The guide portion is used to guide the locking member downward when the locking block engages in the locking groove and rotates, so that the locking block abuts against the lower end of the guide portion.

[0009] Furthermore, the guide step gradually extends downward from the end near the card block to the end away from the guide step.

[0010] Furthermore, the locking member is also provided with an abutment portion, which is located at the end of the guide step near the locking block. The abutment portion is used to abut against the guide portion after the guide portion presses against the locking block.

[0011] Furthermore, the second end is provided with a downwardly extending first sealing sleeve, and the mounting groove is formed inside the first sealing sleeve; the locking member has a second sealing sleeve extending toward the second end, and the second sealing sleeve is rotatably fitted onto the outside of the first sealing sleeve; a first sealing ring is held between the first sealing sleeve and the second sealing sleeve.

[0012] Furthermore, the machining tool assembly structure also includes a bottom cover, which is sealed to the second end; the locking member has a third sealing sleeve at its end away from the second end, and the bottom cover has a fourth sealing sleeve extending toward the second end, with the third sealing sleeve rotatably inserted into the fourth sealing sleeve; a second sealing ring is held between the third sealing sleeve and the fourth sealing sleeve.

[0013] Furthermore, the locking member is provided with a rotating handle, and the bottom cover is provided with a through hole for the rotating handle to extend and slide; the end of the through hole is provided with a limiting member, which is used to limit the rotation by connecting with the rotating handle when rotating to the end of the through hole.

[0014] A mixer includes a processing cup and a processing blade assembly structure, wherein the processing cup is detachably mounted on a mounting base; the mounting base is provided with a heating element located on the outer periphery of the mounting groove.

[0015] In summary, the present invention has the following technical effects: The tool holder of the machining tool assembly can be inserted into the mounting slot of the mounting base. The locking mechanism rotates to lock or disengage the tool holder from the mounting base. In other words, the machining tool assembly can be disassembled and assembled without the need for additional screws or bolts, making disassembly and cleaning convenient. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the present invention; Figure 2 This is a cross-sectional view of the present invention from another perspective; Figure 3 This is a schematic diagram of the structure of the present invention; Figure 4 This is a cross-sectional view of the machining tool assembly of the present invention; Figure 5 This is a schematic diagram of the locking component of the machining tool assembly of the present invention; Figure 6 This is a schematic diagram of the machining tool assembly of the present invention; Figure 7 This is a schematic diagram of the mounting base of the present invention.

[0017] The reference numerals in the attached drawings have the following meanings: 10, mounting base; 11, first sealing sleeve; 12, mounting groove; 121, first flat surface; 13, guide part; 20, locking element; 21, second sealing sleeve; 22, third sealing sleeve; 23, locking block; 24, guide step; 25, rotating handle; 26, abutment part; 31, tool holder; 311, locking groove; 312, second flat surface; 32, machining tool; 33, tool shaft; 40, first sealing ring; 41, through hole; 411, limiting element; 50, second sealing ring; 60, machining cup. Detailed Implementation

[0018] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0019] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 invention and simplifying the description, and do not indicate or imply that the device or element 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 invention.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0021] Example 1, See Figure 1-7 The present invention discloses a machining tool assembly assembly structure, including a mounting base 10, a machining tool assembly and a locking member 20. The mounting base 10 has a first end and a second end, and a mounting groove 12 is provided on the mounting base 10, which extends from the first end to the second end.

[0022] The aforementioned machining tool assembly includes a tool holder 31 and a machining tool 32. The machining tool 32 is rotatably mounted on the tool holder 31 via a tool shaft 33. When the machining tool assembly is assembled to the mounting base 10, the tool holder 31 can be inserted into the mounting groove 12. The tool holder 31 is inserted into the mounting groove 12 from the first end and extends out from the second end. In addition, a locking part is provided on the tool holder 31. Specifically, the locking part can be provided at the end of the tool holder 31 that extends out from the mounting groove 12.

[0023] The locking member 20 is rotatably mounted on the second end. After the tool holder 31 is inserted into the mounting slot 12, the tool holder 31 extends out from the second end, and the locking member 20 can rotate toward the locking part. After the locking member 20 rotates toward the locking part, it can be detachably connected to the locking part so that the tool holder 31 is locked to the mounting base 10.

[0024] Based on the above structure, when using the processing blade assembly of the present invention, the processing blade assembly can be applied to structures such as juicers, baby food machines, food processors, or blenders. Specifically, in use, the drive motor set on the machine body can drive the blade shaft 33 to rotate, thereby driving the processing blade 32 connected to the blade shaft 33 to rotate to crush the food, and realize operations such as food mixing and crushing.

[0025] Specifically, during assembly, the tool holder 31 of the machining tool assembly can be assembled into the mounting groove 12 of the mounting base 10. After the tool holder 31 is inserted into the mounting groove 12, it can extend out from the second end. Then, the locking member 20 can be rotated. The locking member 20 can rotate toward the locking part and lock with the locking part to prevent the tool holder 31 from disengaging from the mounting base 10.

[0026] Of course, when disassembling and cleaning the machining tool assembly, the locking member 20 can be rotated in the opposite direction, causing the locking member 20 to rotate away from the locking part and disengage from the locking part. At this time, the tool holder 31 of the machining tool assembly can be removed from the mounting slot 12, thus achieving disassembly.

[0027] Thus, in this embodiment, the tool holder 31 of the machining tool assembly can be inserted into the mounting groove 12 of the mounting base 10, and the locking member 20 can be rotated to lock or disengage the tool holder 31 from the mounting base 10. That is, the machining tool assembly can be disassembled and assembled without the need for additional screws or bolts, making disassembly and cleaning convenient.

[0028] Furthermore, a limiting post can be provided on the second end, corresponding to a limiting groove on the locking member 20. After the locking member 20 is installed on the second end of the mounting base 10, the limiting post on the second end can pass through the limiting groove and slide in cooperation with the limiting groove when the locking member 20 rotates. Based on this structure, when the locking member 20 rotates, the limiting post can slide in the limiting groove, thus guiding the rotation of the locking member 20. Moreover, the limiting post abuts against the end wall of the limiting groove, which can also limit the rotation range of the locking member 20.

[0029] Specifically, a protruding post can be provided on the second end, and a threaded hole is provided in the protruding post. When the locking member 20 is assembled to the second end of the mounting base 10, the protruding post can pass through the limiting groove of the locking member 20, and then a screw is screwed into the threaded hole. The head of the screw can prevent the locking member 20 from disengaging from the second end. Such an assembly structure can give the locking member 20 vertical and rotational space.

[0030] Furthermore, in this embodiment, a locking block 23 may be provided on the locking member 20, and a locking groove 311 may be provided on the tool holder 31. After the tool holder 31 is inserted into the mounting groove 12, the locking groove 311 on the tool holder 31 may extend out of the second end, and the locking groove 311 may be formed as a locking part on the tool holder 31.

[0031] When locking, the locking member 20 can be rotated, and the locking block 23 on the locking member 20 can rotate toward the locking groove 311. At this time, the locking block 23 can be engaged in the locking groove 311, thus completing the locking. When unlocking, the locking member 20 can be rotated in the opposite direction, causing the locking block 23 to rotate away from the locking groove 311. At this time, the locking block 23 can be disengaged from the locking groove 311, thus completing the unlocking.

[0032] Furthermore, the aforementioned locking groove 311 has an open end. Specifically, after the tool holder 31 is inserted into the mounting groove 12, the open end of the locking groove 311 can correspond to the locking block 23. When the locking member 20 rotates, the locking block 23 of the locking member 20 can rotate from the open end close to the inside of the locking groove 311. The locking block 23 on the locking member 20 can rotate from the open end of the locking groove 311 into the locking groove 311 to complete the locking.

[0033] When the locking member 20 rotates in the opposite direction, the locking block 23 of the locking member 20 can rotate inside the locking groove 311 near the opening end and exit the locking groove 311 through the opening end. That is, the locking block 23 of the locking member 20 can rotate in or out from the opening end.

[0034] It should be noted that a first flat surface 121 can be provided on both sides of the mounting groove 12, and a second flat surface 312 that mates with the first flat surface 121 can also be provided on both sides of the tool holder 31. When the tool holder 31 is inserted into the mounting groove 12, the second flat surface 312 on both sides of the tool holder 31 can correspond to the first flat surface 121 on both sides of the mounting groove 12 in order to achieve insertion. After insertion, due to the mating of the flat surfaces, the tool holder 31 can be prevented from rotating when the tool shaft 33 rotates.

[0035] Based on this structure, the opening end of the locking groove 311 provided on the tool holder 31 can be connected to the second flat surface 312. In this way, when the tool holder 31 is inserted, it is convenient for the locking block 23 of the locking member 20 to be positioned correspondingly with the opening end.

[0036] More specifically, a guide step 24 can be provided on the locking member 20. The guide step 24 can extend along the rotation direction of the locking member 20, and the locking block 23 is located at the end of the guide step 24. Correspondingly, a guide part 13 is provided at the second end of the mounting base. When the locking member 20 rotates, the guide part 13 can slide and engage with the guide step 24 to guide the locking member 20 to move up and down.

[0037] Since the locking member 20 has different rotation directions when locking and unlocking, when the locking member 20 is locked and rotating, the locking block 23 on the locking member 20 can rotate from the open end into the locking groove 311. At this time, the guide part 13 on the second end can slide and cooperate with the guide step 24 and slide relative to the guide step 24. The guide part 13 can press the locking member 20 above the guide step 24 and guide the locking member 20 downward. As the locking member 20 continues to rotate, the guide part 13 can slide relative to the locking block 23 located at the end of the guide step 24 and abut against the top of the locking block 23. At this time, the guide part 13 can press against the locking block 23 from above to prevent the locking block 23 from moving up and down. At this time, the locking member 20 will not shake up and down, and the locking structure is stable.

[0038] When unlocking, the locking member 20 can move in the opposite direction, the guide part 13 can disengage from the locking block 23, and the locking block 23 can slide out from the opening end, making unlocking convenient.

[0039] Furthermore, the aforementioned guide step 24 extends downward from the end near the locking block to the end away from the guide step 24. That is, the guide step 24 can be implemented as a slope in the prior art. When the guide part 13 slides upward along the slope, it can press down on the locking member 20, driving the locking member 20 downward and pressing it on the top of the locking block 23 to limit its movement.

[0040] Of course, the guide step 24 can also be made of an arc surface, which can achieve the same guiding effect when sliding along the arc surface. In addition, the guide step 24 can also be made of a spiral structure.

[0041] Furthermore, a contact portion 26 can also be provided on the locking member 20. The contact portion 26 can be located at the end of the guide step 24 near the locking block 23. Specifically, when the locking member 20 rotates, when the guide portion 13 slides along the guide step 24 to the end of the guide step 24, it can abut against the contact portion 26 at the end of the guide step 24. That is, at this position, the guide portion 13 presses against the locking block 23 to achieve locking and facilitate locking and positioning.

[0042] It should be noted that the aforementioned guide portion 13 can be formed by a rib structure protruding from the second end, and similarly, the abutment can also be formed by a rib structure protruding from the end of the guide step 24.

[0043] Of course, the cooperation method between the locking member 20 and the locking part is not limited to the locking block 23 and the locking groove 311. It can also be the cooperation method of a magnet and a magnet body. When the locking member 20 is rotated to the position where the magnet and the magnet body cooperate, the locking can be completed. Alternatively, it can be that the elastic pin corresponds to the corresponding locking hole on the locking member 20. When the locking member 20 is rotated to the position where the locking hole corresponds to the elastic pin on the tool holder 31, the elastic pin extends into the locking hole to complete the locking. The specific choice depends on the actual needs.

[0044] Furthermore, in this embodiment, a first sealing sleeve 11 extending downward is provided at the second end, and the aforementioned mounting groove 12 can be formed inside the first sealing sleeve 11. Correspondingly, the locking member 20 can have a second sealing sleeve 21 extending toward the second end. Based on this structure, when the locking member 20 is assembled with the second end of the mounting base 10, the second sealing sleeve 21 can be rotatably fitted onto the outside of the first sealing sleeve 11, and the first sealing ring 40 is held between the first sealing sleeve 11 and the second sealing sleeve 21.

[0045] Based on this structure, after the tool shaft 33 is inserted into the mounting groove 12 formed by the first sealing sleeve 11, the first sealing sleeve 11 and the second sealing sleeve 21 on the locking member 20 can form a seal on the outer layer of the tool holder 31, that is, a seal is formed on the outer layer of the assembly of the tool holder 31 and the mounting groove 12. Therefore, it can reduce the entry of water or dust into the assembly gap during the processing.

[0046] It should be noted that in actual use, a heating resistor is usually set on the mounting base 10 to heat the processing cup 60 after it is installed on the mounting base 10. The heating resistor structure is generally on the outer ring of the mounting base 10 with the tool holder 31. In this embodiment, the first sealing sleeve 11, the second sealing sleeve 21 and the first sealing ring 40 form a seal at the assembly position of the tool holder 31 and the mounting groove 12, which can prevent water or dust from overflowing through the middle assembly position, forming a relatively closed space with better sealing effect.

[0047] Furthermore, the machining tool assembly structure also includes a bottom cover, which is sealed at the second end. The locking member 20 is provided with a third sealing sleeve 22 at the end away from the second end. The bottom cover is provided with a fourth sealing sleeve extending toward the second end. The third sealing sleeve 22 is rotatably inserted into the fourth sealing sleeve. A second sealing ring 50 is held between the third sealing sleeve 22 and the fourth sealing sleeve.

[0048] Thus, after the bottom cover is installed to the second end of the mounting base 10, it can seal the locking member 20, the tool holder 31, and other components mounted on the mounting base 10 in a relatively sealed space. Specifically, a seal is formed at the connection between the bottom cover and the locking member 20 by the third sealing sleeve 22 and the fourth sealing sleeve and the second sealing ring 50. That is, a seal is formed above by the first sealing sleeve 11, the second sealing sleeve 21, and the first sealing ring 40, and a seal is formed below by the third sealing sleeve 22, the fourth sealing sleeve, and the second sealing ring 50. After the tool holder 31 and the locking member 20 are assembled, a seal is formed inside. If water enters the processing cup 60 through the tool holder 31 and the mounting groove 12, it will be directly discharged below the bottom cover and will not spread in the circumferential direction, thus not affecting other components on the mounting base 10.

[0049] Furthermore, to facilitate locking or unlocking the locking member 20, a rotating handle 25 can be provided on the locking member 20, with a corresponding through hole 41 for the rotating handle 25 to extend and slide. Thus, when unlocking or locking the locking member 20, the rotating handle 25 extending from the through hole 41 can be rotated, and the rotation of the rotating handle 25 can drive the locking member 20 to rotate.

[0050] Specifically, since the locking block 23 of the locking member 20 has a locked state and an unlocked state that is disengaged from the opening end, in order to keep the locking member 20 in a stable locked state and unlocked state, a limiting member 411 can also be provided at the end of the through hole 41. When the rotating handle 25 rotates to one end of the through hole 41, it is limited by one of the limiting members 411. The rotating handle 25 can be relatively fixed in that position, so the locking member 20 can form a relatively stable state and is not easy to loosen.

[0051] It should be noted that the aforementioned limiting component can be a limiting rib set at the end of the through hole. The limiting rib can extend into the through hole, and the rotating handle 25 can be moved past the limiting rib for limiting. Of course, the limiting component can also be a magnetic structure, and a corresponding magnetic structure can be set on the rotating handle 25. When rotated to the corresponding position, they attract each other magnetically to complete the limiting.

[0052] Example 2, A mixer includes a processing cup 60 and a processing blade assembly structure of the above embodiment 1. Specifically, the processing cup 60 can be detachably mounted on a mounting base 10. A heating element is provided on the mounting base 10 and the heating element is located on the outer periphery of the mounting groove 12.

[0053] When processing food ingredients, the processing cup 60 can be connected to the outer periphery of the first end of the mounting base 10 by threaded assembly. The blade holder 31 of the processing blade assembly can be inserted into the mounting groove 12 of the mounting base 10. The blade holder 31 extends from the second end of the mounting base 10 and is locked by the locking member 20. After the assembly is completed, food ingredients can be placed in the processing cup 60. Then, the blade shaft 33 of the processing blade assembly can rotate under the drive of the motor. During the rotation, the processing blade 32 can process the food ingredients.

[0054] Specifically, during assembly, the tool holder 31 of the machining tool assembly can be assembled into the mounting groove 12 of the mounting base 10. After the tool holder 31 is inserted into the mounting groove 12, it can extend out from the second end. Then, the locking member 20 can be rotated. The locking member 20 can rotate toward the locking part and lock with the locking part to prevent the tool holder 31 from disengaging from the mounting base 10.

[0055] Of course, when disassembling and cleaning the machining tool assembly, the locking member 20 can be rotated in the opposite direction, causing the locking member 20 to rotate away from the locking part and disengage from the locking part. At this time, the tool holder 31 of the machining tool assembly can be removed from the mounting slot 12, thus achieving disassembly.

[0056] Thus, in this embodiment, the tool holder 31 of the machining tool assembly can be inserted into the mounting groove 12 of the mounting base 10, and the locking member 20 can be rotated to lock or disengage the tool holder 31 from the mounting base 10. That is, the machining tool assembly can be disassembled and assembled without the need for additional screws or bolts, making disassembly and cleaning convenient.

[0057] It should be noted that applying the processing blade assembly in Embodiment 1 to a mixer has the same technical effect as in Embodiment 1, and will not be repeated here.

[0058] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention.

Claims

1. A machining tool assembly assembly structure, characterized in that, include, The mounting base has a first end and a second end, and the mounting base is provided with a mounting groove that extends from the first end to the second end. A machining tool assembly includes a tool holder and a machining tool, wherein the machining tool is rotatably mounted on the tool holder via a tool shaft; the tool holder is inserted into the mounting groove from the first end and extends out from the second end; the tool holder is provided with a locking part; A locking member is rotatably mounted on the second end and is used to rotate near the locking part after the tool holder extends from the second end, and is detachably connected to the locking part to lock the tool holder to the mounting base. The locking member has a locking block, and the tool holder has a locking groove. The locking block is used to engage with or disengage from the locking groove during the rotation of the locking member. The locking groove has an open end, which is used to correspond to the locking block after the tool holder is inserted into the mounting groove, and to guide the locking block to engage with or disengage from the locking groove when the locking member rotates. The locking member has a guide step that extends along the rotation direction of the locking member. The locking block is located at the end of the guide step. The second end has a guide part, which is used to slide with the guide step when the locking member rotates to guide the locking member to move up and down. The guide part is used to guide the locking member downward when the locking block engages with the locking groove and rotates, so that the locking block abuts against the lower end of the guide part.

2. The machining tool assembly structure according to claim 1, characterized in that, The second end is provided with a limiting post, and the locking member is provided with a limiting groove. The limiting post passes through the limiting groove and is used to slide with the limiting groove when the locking member rotates.

3. The machining tool assembly assembly structure according to claim 1, characterized in that, The guide step gradually extends downwards from the end closest to the locking block to the end furthest from the guide step.

4. The machining tool assembly structure according to claim 3, characterized in that, The locking member is also provided with an abutment portion, which is located at the end of the guide step near the locking block. The abutment portion is used to abut against the guide portion after the guide portion presses against the locking block.

5. The machining tool assembly structure according to any one of claims 1-4, characterized in that, The second end is provided with a downwardly extending first sealing sleeve, and the mounting groove is formed inside the first sealing sleeve; the locking member has a second sealing sleeve extending toward the second end, and the second sealing sleeve is rotatably fitted onto the outside of the first sealing sleeve; a first sealing ring is held between the first sealing sleeve and the second sealing sleeve.

6. The machining tool assembly assembly structure according to claim 5, characterized in that, The machining tool assembly structure also includes a bottom cover, which is sealed to the second end; the locking member has a third sealing sleeve at the end away from the second end, and the bottom cover has a fourth sealing sleeve extending toward the second end, with the third sealing sleeve rotatably inserted into the fourth sealing sleeve; a second sealing ring is held between the third sealing sleeve and the fourth sealing sleeve.

7. The machining tool assembly assembly structure according to claim 6, characterized in that, The locking member is provided with a rotating handle, and the bottom cover is provided with a through hole for the rotating handle to extend and slide; the end of the through hole is provided with a limiting member, which is used to limit the rotation by connecting with the rotating handle when rotating to the end of the through hole.

8. A mixer, characterized in that, The assembly includes a processing cup and a processing tool assembly structure according to any one of claims 1-7, wherein the processing cup is detachably mounted on the mounting base; the mounting base is provided with a heating element located on the outer periphery of the mounting groove.

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