A rotary mechanism for a combination cutter

Abstract

The utility model provides a kind of rotary mechanism for combination cutter, combination cutter includes shell, shell includes release area;Rotary mechanism includes several knife groups, tool rest and torque input component, tool rest is set to the inside of shell, tool rest includes several knife areas, knife area is suitable for accommodating knife group, torque input component is suitable for transmitting torque to tool rest to drive tool rest to rotate around rotation center axis, tool rest is suitable for driving knife group synchronous rotation;Tool rest can selectively rotate one knife group to align release area setting to become target knife group, target knife group can be independent of tool rest movement, to be able to switch from storage state to working state by it.This utility model realizes the quick switching of multiple knife groups by rotating tool rest, while ensuring that target knife group can be stably switched between storage state and working state, to improve the functional integration of combination cutter, operation convenience and structural reliability.

Description

Technical Field

[0001] This utility model belongs to the field of kitchenware technology, and in particular relates to a rotating mechanism for combination knives. Background Technology

[0002] In daily life and work, combination knives are widely used because they can integrate multiple cutting functions and are easy to carry and store. For example, the combination of a fruit knife and various scrapers can meet the needs of peeling, cutting and other operations.

[0003] For example, Chinese patent application number CN201520567626.0 discloses a double-headed fruit knife. This knife includes a hollow blade barrel containing a movable slider. One end of the barrel houses a blade, and the other end houses a peeler. The user can operate a pusher connected to the slider to expose or retract the blade or peeler within the barrel. Other Chinese patents, CN202221282532.5 and CN202321126147.6, disclose a double-headed fruit knife with an integrated blade and peeler design. Both multi-functional double-headed fruit knives employ a "double-headed" design, integrating only two types of blades (such as a blade and a peeler), with the two blades exposed or hidden via a slider or button operation. This type of structure has significant limitations:

[0004] (1) Due to the “dual-head” layout, only two tool functions can be integrated. If more cutting functions are needed (such as adding different shaped blades or scrapers), the existing structure is difficult to achieve and cannot meet the diverse cutting needs. (2) Tool switching depends on the slider or button to control the two tool heads separately. The operation logic is relatively complicated and it is impossible to achieve fast and intuitive switching of multiple tools. (3) The “dual-head” axial arrangement structure makes it difficult to optimize the tool layout within the limited shell space, resulting in a mismatch between the overall volume and functional density and low space utilization. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a rotating mechanism for combining cutting tools, which can integrate more cutting tool functions, facilitate switching and have a compact structure, so as to meet the needs of users.

[0006] To achieve the above objectives, this utility model provides a rotating mechanism for a combined cutting tool, the combined cutting tool including a housing, the housing including a release area;

[0007] The rotating mechanism includes a plurality of tool sets, a tool holder, and a torque input component. The tool holder is disposed inside the housing and includes a plurality of tool areas adapted to accommodate the tool sets. The torque input component is adapted to transmit torque to the tool holder to drive the tool holder to rotate about the rotation center axis. The tool holder is adapted to drive the tool sets to rotate synchronously.

[0008] The tool holder can selectively rotate one of its tool sets to align with the release area to become a target tool set, which can move independently of the tool holder, thereby enabling it to switch from a stored state to a working state.

[0009] Preferably, the tool assembly includes a blade and a tool holder adapted to support the blade. The tool holder provides stable support for the blade, and the tool area is adapted to circumferentially limit the tool holder to ensure that the tool assembly rotates synchronously with the tool holder when the tool holder rotates, preventing the tool assembly from circumferentially wobbling relative to the tool holder and ensuring that the tool assembly can accurately align with the release area when rotating and switching.

[0010] The tool holder also includes several blade outlets, each blade corresponding to a pre-defined blade outlet. The shape of the blade outlet is adapted to the cross-section of the blade. The tool assembly can slide and extend within the tool area along its length direction. The blade can reciprocate through the blade outlets. The blade outlets can provide extension and retraction guidance for the blade, preventing blade deviation and ensuring a stable extension and retraction path.

[0011] Preferably, one of the tool holder and the tool support is provided with a guide groove, and the other of the tool holder and the tool support is provided with a guide post. The guide groove and the guide post slide in cooperation along the extension direction of the rotation center axis of the tool holder to ensure the accuracy of the extension and retraction direction of the tool assembly, avoid jamming or deviation, and the guide groove and the guide post are suitable for forming a circumferential limit, further enhancing the synchronization between the tool assembly and the tool holder, ensuring that the tool assembly and the cutting edge always correspond, and improving the reliability of the extension and retraction action.

[0012] Preferably, the tool holder includes a locking block, and the inner peripheral wall of the housing is formed with a stop step arranged circumferentially thereon and a release groove arranged axially thereon. The stop step is adapted to abut against the locking block to restrict the extension of the tool assembly, and the release groove is adapted to allow the locking block to reciprocate axially, thereby allowing the tool assembly to extend and retract. That is, the stop step mechanically locks non-target tool assemblies to prevent them from extending accidentally and to eliminate the risk of accidental activation, while the release groove only allows the locking block of the target tool assembly to move, realizing automated control of "locking when not in operation and unlocking when in operation" without additional operation and improving ease of use.

[0013] Preferably, the blade assembly includes a blade and a blade holder adapted to support the blade, the blade holder being pivotally connected to the blade region via a hinge axis, and the blade assembly being rotatable 0-180° about the hinge axis.

[0014] Preferably, the tool set includes a first tool set and / or a second tool set. The first tool set includes a first tool holder and a first blade, and the second tool set includes a second tool holder and a second blade. The outer circumferential surfaces of the first tool holder and / or the second tool holder are located on the same distributed circumference, and the center of the distributed circumference coincides with the rotation center axis. This ensures that when the tool holder rotates, the outer circumference of each tool set does not interfere with the inner wall of the housing, reduces structural redundancy, makes the overall volume more compact, and also makes the tool holder more uniformly stressed, the rotation process more stable, reduces wear, and extends service life.

[0015] Preferably, the first blade holder and the first blade are straight, and the first blade holder is arranged radially along one of the distribution circumferences in a plane perpendicular to the rotation center axis; the second blade holder and the second blade are arc-shaped, and the second blade holder is coaxially arranged with the distribution circumference in a plane perpendicular to the rotation center axis. In the above design, the shape and function are matched to improve cutting / scraping efficiency; for example, a straight blade makes straight cutting easier, while an arc-shaped blade scrapes curved surfaces more thoroughly.

[0016] Preferably, the cutting edge of the first blade faces the radially inner or radially outer side of the distribution circumference.

[0017] Preferably, the tool set includes one first tool set and three second tool sets, wherein the curvature of each second tool holder is [missing information]. The second set of blades is evenly distributed around the circumference and forms a circular arc, making the structure compact. Part of the first set of blades is adapted to extend into the circular arc, further reducing the overall volume and improving portability. The first blade is a fruit knife, and the three sets of second blades are scrapers of different shapes. A single tool can achieve multiple uses (such as "peeling → pitting → slicing" in fruit processing), eliminating the need to carry multiple knives.

[0018] Preferably, the torque input component includes a drive shaft, a rotary operating component and a torque transmission component connected to both ends of the drive shaft. The rotary operating component is adapted to transmit external rotational torque to the drive shaft. The rotary operating component can increase the lever arm, making torque input more effortless and suitable for repeated switching operations. The torque transmission component is adapted to synchronously transmit rotational torque to the tool holder.

[0019] Preferably, the tool holder also includes a rotation positioning component, which includes a plurality of circumferentially distributed positioning slots and at least one positioning post, wherein one of the positioning slots and the positioning post rotates synchronously with the tool holder, and the other of the positioning slots and the positioning post remains stationary relative to the tool holder.

[0020] When the tool holder rotates to one of the tool groups to become the target tool group, the positioning post engages in one of the positioning slots to generate tactile feedback, indicating that a single switching action has been completed. A single switching action refers to the target tool group being switched from one of the tool groups to another adjacent tool group.

[0021] The positioning component is suitable for precisely positioning the blade assembly, avoiding over- or under-rotation, and ensuring accurate alignment of the target blade assembly with the release area. Tactile feedback allows users to determine when the switch is in place without visual inspection, improving operational convenience, especially in low-light conditions.

[0022] Preferably, the positioning groove is coaxially arranged with the distribution circumference to ensure that the positioning accuracy is consistent with the rotation center and to avoid misalignment of the tool set due to positioning deviation. The positioning groove is located on the end face of the tool holder, the positioning post remains stationary relative to the housing, and the extension direction of the positioning post points to the end face of the tool holder; or, the extension and retraction direction of the positioning post is arranged along one of the radial directions of the distribution circumference.

[0023] The beneficial effects of this utility model are:

[0024] By integrating multiple tool sets into the tool holder, the tool sets can be quickly switched by rotating the tool holder, and a target tool set that can be freely accessed through the release area can be obtained, realizing the switch from storage state to working state, while other non-target tool sets remain in storage state to avoid accidental activation and improve safety. Attached Figure Description

[0025] Figure 1 is a schematic diagram of the structure of a combined cutting tool with the rotating mechanism provided in Embodiment 1.

[0026] Figure 2 is an exploded view of a combined cutting tool with the rotating mechanism provided in Embodiment 1.

[0027] Figure 3 is a cross-sectional schematic diagram of a combined cutting tool with the rotating mechanism provided in Embodiment 1.

[0028] Figure 4 is a schematic diagram of the rotating mechanism provided in Embodiment 1 (excluding the rotating operating component).

[0029] Figure 5 is an exploded view of the rotating mechanism provided in Example 1.

[0030] Figure 6 is a schematic diagram of the tool holder provided in Example 1.

[0031] Figure 7 is a top view of the tool holder provided in Example 1.

[0032] Figure 8 is a schematic diagram of the knife assembly provided in Example 1.

[0033] Figure 9 is a top view of the tool holder provided in Embodiment 1.

[0034] Figure 10 is a schematic diagram of the structure of the rotating operating component provided in Embodiment 1.

[0035] Figure 11 is a schematic diagram of the main housing provided in Embodiment 1.

[0036] Figure 12 is a schematic diagram of the drive ring provided in Example 1.

[0037] Figure 13 is an exploded view of a combined cutting tool provided in Example 2.

[0038] Figure 14 is a cross-sectional schematic diagram of a combined cutting tool provided in Embodiment 2.

[0039] Figure 15 is a schematic diagram of the drive ring provided in Example 2.

[0040] Figure 16 is a schematic diagram of the main housing provided in Embodiment 2.

[0041] In the diagram: 1. Housing; 11. Main housing; 111. Release area; 1111. Positioning protrusion; 112. Stop step; 113. Release groove; 12. Sub-housing; 121. First cutting edge; 122. Second cutting edge; 13. Locking positioning seat; 131. Telescopic groove; 132. Positioning pin; 133. Positioning ring; 2. Tool assembly; 21. First tool assembly; 211. First tool holder; 2111. First step; 212. First blade; 22. Second tool assembly; 221. Second tool holder; 2211. Second step; 2212. Second guide groove; 222. Second blade; 23. 24. Distribution circumference; 24. Force-bearing part; 241. Push-out stop; 242. Retract stop; 25. Locking block; 3. Tool holder; 31. First tool area; 311. First guide groove; 32. Second tool area; 321. Second guide groove rail; 4. Torque input assembly; 41. Drive shaft; 42. Rotary operating component; 421. Rotary peripheral wall; 4211. Positioning groove; 43. Torque transmission component; 431. Turntable; 432. Fan-shaped lug; 5. Axial drive assembly; 51. Drive ring; 511. Support part; 512. Protrusion; 52. Pushing part; 521. Positioning groove; 53. Drive button. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0044] Additionally, it should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Example 1

[0046] like Figure 1-12As shown, a rotating mechanism for a combination tool includes a housing 1, which comprises a main housing 11, a secondary housing 12 coaxially disposed at both axial ends of the main housing 11, and a locking and positioning seat 13. The main housing 11 includes a release area 111 disposed along its axial direction, and the secondary housing 12 has several tool outlets. The rotating mechanism includes several tool sets 2, a tool holder 3, and a torque input component 4. The tool sets 2 include a first tool set 21 and three second tool sets 22. The first tool set 21 includes a first tool holder 211 and a first cutting blade 212, both of which are straight plates. The second tool sets 22 include a second tool holder 221 and a second cutting blade 222, both of which are arc-shaped. The secondary housing 12 is integrally formed at one end of the tool holder 3 to ensure the positional accuracy of the tool outlets and the tool sets 2. During installation, the other end of the tool holder 3 is adapted to pass through the main housing 11, and the tool holder 3 is rotatably disposed within the main housing 11. The main housing 11 and the secondary housing 12 enclose a storage space suitable for accommodating and completely accommodating the tool sets 2. The tool holder 3 includes several tool zones, including a first tool zone 31 and a second tool zone 32. The first tool zone 31 is adapted to accommodate a first tool group 21, and the second tool zone 32 is adapted to accommodate a second tool group 22. The tool exits include a first exit port 121 corresponding to the first tool group 21 and a second exit port 122 corresponding to the second tool group 22. The torque input assembly 4 includes a drive shaft 41, a rotary operating member 42, and a torque transmission member 43. The torque transmission member 43 is a turntable 431, and the drive shaft 41 and the turntable 431 are integrally formed. A square key is formed at the other end of the drive shaft 41. The rotary operating member 42 is engaged with the square key, and the rotary operating member 42 is axially engaged with the drive shaft 41 to prevent separation. The rotary operating member 42 is adapted to transmit external rotational torque to the drive shaft 41, and the torque transmission member 43 is adapted to synchronously transmit the rotational torque to the tool holder 3. The turntable 431 includes two fan-shaped lugs 432, which, together with the first tool holder 211, form a circumferential limit, allowing the turntable 431 to directly drive the first tool group 21 to rotate synchronously when it rotates. The turntable 431 is inserted into the other end of the tool holder 3 along its extension direction. The first tool holder 211 includes a first step 2111, and the second tool holder 221 includes a second step 2211. The first step 2111 and the second step 2211 are adapted to jointly support the turntable 431. The torque input component 4 is adapted to drive the tool holder 3 to rotate around the rotation center axis, thereby selecting one of its tool groups 2 to align with the release area 111 and become the target tool group, while the other tool groups 2 remain non-target tool groups. The sub-housing 12 rotates synchronously with the tool holder 3. The tool holder 3 can selectively rotate the first tool group 21 or one of its second tool groups 22 to the alignment release area 111 to become the target tool group. The target tool group can move independently of the tool holder 3, thereby enabling it to switch from a storage state to a working state.

[0047] In this embodiment, in a plane perpendicular to the rotation center axis, the first tool holder 211 is arranged radially along one of the distribution circumferences 23, and the second tool holder 221 is coaxially arranged with the distribution circumference 23. The first tool area 31 includes a first guide groove 311, within which the first tool holder 211 can reciprocate along the extension direction of the rotation center axis, and the first guide groove 311 and the first tool holder 211 are adapted to form a circumferential limit. The second tool area 32 is provided with a second guide rail 321, and the second tool holder 221 is provided with a second guide groove 2212, which slides along the extension direction of the rotation center axis, and the second guide groove 2212 and the second guide rail 321 are adapted to form a circumferential limit. The curvature of each second tool holder 221 is... The second set of blades 22 is evenly distributed around the circumference and forms a distribution arc, making the structure compact. Part of the first set of blades 21 is adapted to extend into the distribution arc, further reducing the overall volume and improving portability. The first blade 212 is a fruit knife, with the cutting edge of the first blade 212 facing the radially outward side of the distribution circumference 23. The three sets of second blades 222 are scrapers of different shapes, enabling a single tool to achieve multiple uses.

[0048] In this embodiment, the first tool holder 211 and the second tool holder 221 each have a locking block 25. The inner peripheral wall of the housing 1 is formed with a stop step 112 arranged circumferentially and a release groove 113 arranged axially. The stop step 112 is adapted to abut against the locking block 25 to restrict the extension of the tool assembly 2, and the release groove 113 is adapted to allow the locking block 25 to reciprocate axially, thereby allowing the tool assembly 2 to extend and retract. That is, the stop step 112 forms a mechanical lock on the non-target tool assembly to prevent it from extending accidentally and solve the risk of accidental contact. The release groove 113 only allows the locking block 25 of the target tool assembly to move, realizing the automated control of "locking when not in operation and unlocking when in operation" without additional operation, improving the convenience of use. The locking block 25 of the non-target tool assembly is blocked by the stop step 112 and cannot move axially, ensuring that the blade of the non-target tool assembly is always retracted, avoiding accidental extension and scratches, and improving safety.

[0049] In this embodiment, the rotating operating member 42 includes a rotating peripheral wall 421, which has a plurality of positioning grooves 4211. The drive shaft 41 passes through the locking positioning seat 13 and is connected to the rotating operating member 42. The locking positioning seat 13 can rotate around the drive shaft 41. The locking positioning seat 13 is provided with a telescopic groove 131 suitable for accommodating the positioning post 132. The telescopic groove 131 is suitable for limiting the positioning post 132 to always face the rotating peripheral wall 421. The head of the positioning post 132 has a spherical or conical structure. Under its own elasticity, the positioning post 132 always fits against the rotating peripheral wall 421. When it is engaged in the positioning groove 4211, it produces a "click" tactile feedback. The user can quickly confirm the switch is in place by touch, without visual assistance, thus improving the convenience of blind operation. When the tool holder 3 rotates to the position where one of its tool groups 2 becomes the target tool group, the positioning pin 132 engages with one of its positioning slots 4211, generating tactile feedback to indicate that the single switching action is complete. The single switching action refers to the target tool group switching from one of its tool groups 2 to another adjacent tool group 2. Each positioning slot 4211 precisely corresponds to the switching position of one tool group 2, achieving "one-to-one" positioning in conjunction with the positioning pin 132.

[0050] In this embodiment, the combined cutting tool includes an axial drive assembly 5, which includes a drive ring 51, a pusher 52, and a drive button 53. The drive ring 51 is disposed inside the main housing 11, and the drive button 53 is disposed outside the main housing 11. The pusher 52 is adapted to connect the drive ring 51 and the drive button 53. The pusher 52 can reciprocate radially within the release area 111 along the main housing 11, thereby selectively engaging or disengaging from the force-bearing part 24 of the target tool set, precisely engaging the force-bearing part 24 of the target tool set, and avoiding contact with non-target tool sets to prevent accidental activation. The drive button 53 can reciprocate axially within the release area 111 along the main housing 11. The outer peripheral surfaces of the first tool holder 211 and the second tool holder 221 are located on the same distribution circumference 23, and the center of the distribution circumference 23 coincides with the rotation center axis. The first tool holder 211 and the second tool holder 221 each include a force-receiving part 24, which is a groove formed on the outer surface of the first tool holder 211 / second tool holder 221. The force-receiving part 24 includes an extension stop surface 241 and a retraction stop surface 242 arranged perpendicular to the axial direction of the main housing 11. Specifically: the pushing part 52 extends into the force-receiving groove and abuts against the extension stop surface 241, and the drive button 53 can drive the blade of the target tool set to extend out of the cutting edge through the pushing part 52; the pushing part 52 extends into the force-receiving groove and abuts against the retraction stop surface 242, and the drive button 53 can drive the blade of the target tool set to retract back into the cutting edge through the pushing part 52.

[0051] In this embodiment, a support portion 511 protrudes from the inner surface of the drive ring 51. The line connecting the pushing portion 52 and the support portion 511 passes through the center of the drive ring 51. When the pushing portion 52 presses against the force-bearing portion 24 of the target tool group, the support portion 511 is adapted to press against the force-bearing portion 24 of one of the non-target tool groups. When the pushing portion 52 presses against the target tool group, the support portion 511 simultaneously presses against the non-target tool group, forming symmetrical force, balancing the radial force on the tool holder 3, preventing the tool holder 3 from shifting due to unilateral force, and ensuring the overall structural stability.

[0052] Furthermore, the outer surface of the drive ring 51 is provided with a plurality of protrusions 512, which are arranged along the axial direction of the main housing 11. At least two of the protrusions 512 are engaged in the release groove 113 and can reciprocate axially within the release groove 113.

[0053] In this embodiment, the release area 111 includes two sets of positioning protrusions 1111, and the pushing part 52 includes a positioning groove 521. The positioning groove 521 moves synchronously with the pushing part 52, thereby selectively engaging with one of the positioning protrusions 1111, so that the target blade assembly remains in an extended or retracted state, resisting external interference (such as slight collisions), preventing the blade from accidentally retracting during use or accidentally extending during storage, and improving the safety of use.

[0054] Example 2

[0055] like Figure 13-16 As shown, a rotating mechanism for a combination tool differs from Embodiment 1 in that a support portion 511 protrudes from the inner surface of the drive ring 51 in the combination tool, and a pushing portion 52 is disposed opposite to the support portion 511. The pushing portion 52 is adapted to drive the support portion 511 to abut against the force-bearing portion 24 of the target tool assembly. Correspondingly, a release area 111 is disposed at the bottom of the release groove 113.

[0056] In this embodiment, the rotating operating member 42 includes a rotating peripheral wall 421, which has a plurality of positioning grooves 4211. The drive shaft 41 passes through the locking positioning seat 13 and is connected to the rotating operating member 42. The locking positioning seat 13 can rotate around the drive shaft 41. A positioning ring 153 is coaxially arranged inside the locking positioning seat 13. The positioning ring 153 includes at least one positioning post 132. The positioning post 132 is arranged radially along the positioning ring 153 and always faces the rotating peripheral wall 421. The head of the positioning post 132 has a spherical structure. Under the elastic action of itself and the positioning ring 153, the positioning post 132 always fits against the rotating peripheral wall 421 and generates a "click" tactile feedback when it is engaged in the positioning groove 4211. When the tool holder 3 rotates to the point where one of its tool groups 2 becomes the target tool group, the positioning post 132 engages in one of its positioning grooves 4211 to generate tactile feedback, indicating that the single switching action is in place.

[0057] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model.

Claims

1. A rotating mechanism for combining cutting tools, characterized in that, The combined cutting tool includes a housing, and the housing includes a release area; The rotating mechanism includes a plurality of tool sets, a tool holder, and a torque input component. The tool holder is disposed inside the housing and includes a plurality of tool areas adapted to accommodate the tool sets. The torque input component is adapted to transmit torque to the tool holder to drive the tool holder to rotate about the rotation center axis. The tool holder is adapted to drive the tool sets to rotate synchronously. The tool holder can selectively rotate one of its tool sets to align with the release area to become a target tool set, which can move independently of the tool holder, thereby enabling it to switch from a stored state to a working state.

2. The rotating mechanism for combined cutting tools according to claim 1, characterized in that, The tool assembly includes a blade and a tool holder adapted to support the blade, and the tool area is adapted to provide circumferential restraint to the tool holder; The tool holder also includes several blade outlets, each blade is pre-corresponding to one of the blade outlets, the tool assembly can slide and extend within the tool area along its length direction, and the blade can reciprocate through the blade outlets.

3. A rotating mechanism for combined cutting tools according to claim 2, characterized in that, One of the tool holder and the tool support is provided with a guide groove, and the other of the tool holder and the tool support is provided with a guide post. The guide groove and the guide post are slidably engaged along the extension direction of the rotation center axis of the tool holder, and the guide groove and the guide post are adapted to form a circumferential limit.

4. A rotating mechanism for combined cutting tools according to claim 3, characterized in that, The tool holder includes a locking block, and the inner peripheral wall of the housing is formed with a stop step arranged circumferentially thereon and a release groove arranged axially thereon. The stop step is adapted to abut against the locking block to restrict the extension of the tool assembly, and the release groove is adapted to allow the locking block to reciprocate axially, thereby allowing the tool assembly to extend and retract.

5. A rotating mechanism for combined cutting tools according to claim 1, characterized in that, The tool assembly includes a blade and a tool holder adapted to support the blade. The tool holder is pivotally connected to the tool area via a hinge axis, and the tool assembly can rotate 0-180° about the hinge axis.

6. A rotating mechanism for combined cutting tools according to any one of claims 2-5, characterized in that, The tool set includes a first tool set and / or a second tool set. The first tool set includes a first tool holder and a first blade. The second tool set includes a second tool holder and a second blade. The outer peripheral surfaces of the first tool holder and / or the second tool holder are located on the same distributed circumference, and the center of the distributed circumference coincides with the rotation center axis.

7. A rotating mechanism for combined cutting tools according to claim 6, characterized in that, The first tool holder and the first blade are straight plates, and the first tool holder is arranged radially along one of the distribution circumferences in a plane perpendicular to the rotation center axis; the second tool holder and the second blade are arc-shaped, and the second tool holder is arranged coaxially with the distribution circumference in a plane perpendicular to the rotation center axis.

8. A rotating mechanism for combined cutting tools according to claim 6, characterized in that, The torque input component includes a drive shaft, a rotary operating component and a torque transmission component that are drively connected to both ends of the drive shaft. The rotary operating component is adapted to transmit external rotational torque to the drive shaft, and the torque transmission component is adapted to synchronously transmit the rotational torque to the tool holder.

9. A rotating mechanism for combined cutting tools according to claim 8, characterized in that, It also includes a rotation positioning component, which includes a plurality of circumferentially distributed positioning slots and at least one positioning post. One of the positioning slots and the positioning post rotates synchronously with the tool holder, while the other of the positioning slots and the positioning post remains stationary relative to the tool holder. When the tool holder rotates to one of the tool groups to become the target tool group, the positioning post engages in one of the positioning slots to generate tactile feedback, indicating that a single switching action has been completed. A single switching action refers to the target tool group being switched from one of the tool groups to another adjacent tool group.

10. A rotating mechanism for combined cutting tools according to claim 9, characterized in that, The positioning groove is coaxially arranged with the distribution circumference, wherein: the positioning groove is located on the end face of the tool holder, the positioning post remains stationary relative to the housing, and the extension direction of the positioning post points to the end face of the tool holder; or, the extension and retraction direction of the positioning post is arranged along one of the radial directions of the distribution circumference.

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