Rotary clutch mechanism and handheld tool

Abstract

The rotary clutch mechanism comprises a body and a clutch assembly rotationally connected with the body, the body is provided with a rotation stopping part, and the clutch assembly comprises a locking piece. And the locking piece moves along the rotating axis of the clutch assembly along with the rotation of the clutch assembly, so that the locking piece is locked with or separated from the rotation stopping part. According to the rotary clutch mechanism and the handheld tool, stepless rotary clutch can be achieved, and the use experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning tools, and more particularly, to a rotary clutch mechanism and a hand-held tool. Background Art

[0002] As a daily cleaning tool, the hand-held cleaning brush plays an irreplaceable role in multiple fields (such as automotive maintenance, home cleaning, public facility maintenance, etc.) due to its diversity and practicality. Because of its portability and ease of operation, the hand-held cleaning brush is particularly suitable for household and small-scale cleaning tasks, which can significantly improve cleaning efficiency and reduce the burden on users.

[0003] However, with the continuous refinement of market demands and the increasing requirements of consumers for product experience, the design of existing hand-held cleaning brushes gradually reveals some limitations. Currently, most hand-held cleaning brushes on the market adopt a relatively fixed connection method between the handle and the brush head. Although this design ensures the structural stability and durability to a certain extent, it restricts the flexibility and adaptability of users during use. For example, when cleaning surfaces of different heights, angles, or shapes, users may face cleaning blind spots or laborious situations due to the inability to adjust the angle of the brush head.

[0004] Since the angle between the handle and the brush head is non-adjustable, users may feel discomfort in parts such as the wrists and arms during long-term use, especially in scenarios where frequent posture or force changes are required, and this discomfort will be more obvious. In addition, the fixed angle may also affect the cleaning effect, making it impossible to thoroughly clean some hard-to-reach corners or gaps.

[0005] With the increasing personalized needs of consumers, the fixed design of traditional hand-held cleaning brushes is difficult to meet the diverse market demands. Users may hope to adjust the angle and position of the brush head according to their usage habits and cleaning scenarios to achieve the best cleaning effect and comfort. Summary of the Utility Model

[0006] In view of this, the present application provides a rotary clutch mechanism and a hand-held tool, which can achieve stepless rotation clutch of the angle, can clean surfaces of different heights, angles, or shapes, and improves the user experience.

[0007] In a first aspect, the present application provides a rotary clutch mechanism, which includes a body and a clutch assembly rotatably connected to the body. The body is provided with an anti-rotation portion, and the clutch assembly includes a locking member. The locking member moves along the rotation axis of the clutch assembly as the clutch assembly rotates, so that the locking member locks or disengages from the anti-rotation portion.

[0008] By adopting the above technical solution, the clutch assembly is connected to a handle, and the body is connected to tool heads such as a cleaning brush. When it is necessary for the clutch assembly and the body to remain relatively stationary, that is, to achieve the angular fixed locking state of the tool heads such as the cleaning brush and the clutch assembly, the clutch assembly is driven to rotate to the locking position. During this process, the locking member moves along its axis as the clutch assembly rotates until it comes into close contact with and locks with the anti-rotation portion on the body. At this time, the rotation between the clutch assembly and the tool heads such as the cleaning brush will be blocked, that is, the relative rotation of the handle relative to the cleaning brush is locked because a stable connection is formed between it and the body through the cooperation of the locking member and the anti-rotation portion. On the contrary, when it is necessary for the tool heads such as the cleaning brush connected to the clutch assembly to rotate freely relative to the clutch assembly, that is, to achieve the disengaged state of the clutch, the clutch assembly is rotated or moved to another position manually. At this time, the contact between the locking member and the anti-rotation portion is released, and the handle connected to the clutch assembly and the tool heads such as the cleaning brush connected to the body can rotate freely without being restricted and can freely adjust the relative rotation angle. This rotational clutch mechanism, due to its characteristics such as compact structure, simple operation, and reliable locking, can be applied to various mechanical devices that require frequent clutch operations, such as transmission systems, power devices, automated production lines, etc. By precisely controlling the rotation and locking of the clutch assembly, efficient management of power transmission can be achieved, improving the operating efficiency and stability of the equipment.

[0009] In some embodiments, the anti-rotation portion is provided with internal teeth / external teeth, the locking member is provided with external teeth / internal teeth, and in the locked state of the internal teeth and the external teeth, the clutch assembly cannot rotate relative to the body.

[0010] By adopting the above technical solution, the anti-rotation portion is designed to have a structure with internal teeth or external teeth. This design allows for precise matching and locking with the corresponding teeth on the locking member. Internal teeth are usually teeth arranged in a circular or quasi-circular groove, while external teeth are teeth protruding outward from the surface. The locking member is provided with external teeth or internal teeth that match the anti-rotation portion. When the clutch assembly rotates relative to the body to a specific position, the teeth on the locking member will align and mesh with the teeth on the anti-rotation portion. When the external teeth on the locking member are fully meshed with the internal teeth on the anti-rotation portion (or vice versa), a stable connection is formed between the clutch assembly and the body. This connection resists relative rotation through the frictional force or meshing force between the teeth, thus ensuring that the clutch assembly cannot rotate freely relative to the body in the locked state. In the locked state, due to the tight fit between the teeth, further rotation of the clutch assembly will encounter significant resistance and may even be completely blocked. This design ensures that the clutch mechanism can be reliably locked when needed, preventing accidental rotation or interruption of power transmission, ensuring the precise connection between the clutch assembly and the body and enabling stepless rotation locking.

[0011] In some embodiments, the anti-rotation portion is an inner gear ring, the outer periphery of the locking member is provided with external teeth for cooperating with the inner gear ring, and a reset member is provided between the locking member and the anti-rotation portion.

[0012] By adopting the above technical solution, the inner gear ring is an annular structure with fine teeth on its inner edge. These teeth are arranged at a specific pitch and angle so as to precisely mesh with the outer teeth on the locking member. The outer circumference of the locking member is provided with outer teeth that match the inner gear ring. When the locking member is moved to a specific position, its outer teeth will align and mesh with the inner teeth of the inner gear ring, thereby preventing the clutch assembly from rotating relative to the body. The reset member is usually an elastic element, such as a spring or an elastic sheet, which is installed between or near the locking member and the anti-rotation part. When the locking member is disengaged from the outer teeth, the reset member will provide a restoring force to automatically return the locking member to its initial position or preset position. This automatic reset function helps to ensure that the clutch mechanism can quickly return to the standby state after unlocking, ready for the next locking operation.

[0013] In some embodiments, the clutch assembly further includes a driving member and an operating member rotatably connected to each other, the operating member is provided with a slide groove, and the external teeth are slidably connected in the slide groove so that the locking member and the operating member can slide relative to each other along the rotation axis.

[0014] By adopting the above technical solution, the operating member and the driving member are rotatably connected to each other, and it serves as an intermediary component to control and adjust the position of the locking member. The operating member is provided with a slide groove for accommodating and guiding the external teeth on the locking member to slide. The slide groove is a long strip groove on the operating member, and its shape and size match the external teeth on the locking member. The design of the slide groove allows the external teeth to slide freely in the slide groove, thereby realizing the relative movement between the locking member and the operating member. These external teeth are not only used to cooperate with the inner gear ring of the anti-rotation part to achieve locking, but also connected in the slide groove by sliding, so that the locking member can slide along the rotation axis relative to the operating member, and the structure is simpler and more compact.

[0015] In some embodiments, the clutch assembly further includes a driving member and an operating member, and when the driving member rotates, the locking member can move closer to or away from the anti-rotation portion, and the locking member is slidably connected to the operating member, and the operating member and the locking member can rotate integrally.

[0016] In some embodiments, the driving member is provided with a pushing surface, and the locking member is provided with a pressure surface. After the driving member rotates and the pushing surface applies force to the pressure surface to move the locking member, the locking member is locked with the anti-rotation portion.

[0017] By adopting the above technical solution, the interaction between the pushing surface on the driving member and the pressure-receiving surface on the locking member realizes the linear motion of the locking member during rotation (i.e., approaching or moving away from the rotation-stopping portion), thereby achieving the locking and disengaging effects of the clutch. When the driving member rotates and pushes the pressure-receiving surface of the locking member, the locking member slides along the operating member to a position corresponding to the rotation-stopping portion. At this time, the external teeth on the locking member will engage with the internal gear ring of the rotation-stopping portion, thereby realizing locking. After locking, the clutch assembly cannot rotate freely relative to the main body.

[0018] In some embodiments, the driving member is provided with a cylinder / ring groove, the locking member is provided with a ring groove / cylinder, and after the driving member rotates and the cylinder slides in the ring groove to move the locking member away from the rotation-stopping portion, the locking member disengages from the rotation-stopping portion.

[0019] By adopting the above technical solution, the sliding groove has an axially varying trajectory. When the driving member rotates, the cylinder (or ring groove) thereon will slide in the ring groove (or cylinder) of the locking member. This sliding motion will change the relative position between the locking member and the rotation-stopping portion. Specifically, when the cylinder slides to a specific position in the ring groove, the locking member will move away from the rotation-stopping portion, thereby disengaging it from the rotation-stopping portion. Conversely, by rotating the driving member in the reverse direction or adopting other mechanisms, the locking member can also be moved closer to the rotation-stopping portion to achieve locking.

[0020] In some embodiments, the rotation-stopping portion is an internal gear ring, the outer periphery of the locking member is provided with external teeth for cooperating with the internal gear ring, the operating member is provided with a sliding groove, and the external teeth are slidably connected in the sliding groove so that the locking member can slide relative to the operating member along the rotation axis.

[0021] By adopting the above technical solution, when the clutch mechanism needs to be locked, an external power drives the operating member to rotate. As the operating member rotates, the locking member slides along the rotation axis under the guidance of the sliding groove to a position corresponding to the rotation-stopping portion (internal gear ring). At this time, the external teeth on the locking member engage with the internal teeth of the rotation-stopping portion, thereby realizing the locking of the clutch. When the clutch mechanism needs to be disengaged, the external power changes direction, causing the operating member to rotate in the reverse direction. Under the action of a reset member (such as a spring), the locking member slides reversely along the sliding groove until the external teeth thereon disengage from the internal teeth of the rotation-stopping portion. At this time, the clutch mechanism is in a disengaged state, allowing the clutch assembly to rotate freely relative to the main body.

[0022] In some embodiments, the pushing surface extends toward the rotation-stopping portion along the rotation axis direction in the locking rotation direction.

[0023] By adopting the above technical solution, in the rotation direction, the pushing surface can push the locking member along the rotation axis toward the rotation-stopping portion.

[0024] In a second aspect, the present application provides a handheld tool, including the rotary clutch mechanism described in the first aspect.

[0025] By adopting the above technical solution, the handheld tool integrates the rotary clutch mechanism, which not only improves the operating performance and usability, but also enhances the safety and adaptability, providing users with a more efficient and reliable tool experience.

[0026] In summary, the present application has at least one of the following beneficial technical effects:

[0027] 1. The rotary clutch mechanism of the present application has a compact structure, simple operation, and reliable locking, and can achieve precise control of the stepless rotation and locking of the clutch component angle, improving the convenience of operation.

[0028] 2. The handheld tool of the present application improves the operating performance and usability, and increases the application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic view of the external structure of the rotary clutch mechanism of the present application;

[0030] Figure 2 is an exploded view of the rotary clutch mechanism of the present application;

[0031] Figure 3 is a top view of the rotary clutch mechanism of the present application;

[0032] Figure 4 is Figure 3 the sectional view taken along line A-A in

[0033] Figure 5 is Figure 4 an enlarged schematic view of area B in

[0034] Figure 6 is a schematic view of the driving member;

[0035] Figure 7 is a schematic view of the locking member;

[0036] Figure 8 is a schematic view of the internal structure of the rotary clutch mechanism of the present application in the disengaged state;

[0037] Figure 9 is a schematic view of the internal structure of the rotary clutch mechanism of the present application in the locked state.

[0038] 1. Body; 11. Anti-rotation part; 12. Rotating shaft; 2. Clutch assembly; 21. Rotating lock; 22. Spring; 23. Locking part; 231. Outer protrusion; 232. Outer teeth; 233. Pressing surface; 24. Driving part; 241. Protrusion; 242. Pushing surface; 25. Lock cover; 3. Operating part; 31. Chute; 4. Brush head; 5. Driving shaft. Detailed implementation manners

[0039] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings. Usually, the components of the embodiments of the present utility model described and illustrated in the drawings herein can be arranged and designed in various different configurations. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0040] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0041] In the description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0042] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0043] The following will describe in detail the implementation manners of the present utility model with reference to the drawings. Without conflict, the features in the following embodiments can be combined with each other. Embodiment

[0044] Please refer to Figure 1 and Figure 2, The rotary clutch mechanism provided by the embodiment of the present application includes a main body 1, a clutch assembly 2 rotatably connected to the main body 1, and an operating member 3. The main body 1 is further connected to a brush head 4, and a motor for driving the brush head 4 to rotate through a drive shaft 5 is provided inside the main body 1. The main body 1 is provided with a rotation stopping portion 11 and a rotating shaft 12, and the clutch assembly 2 rotates around the axis of the rotating shaft 12. The clutch assembly 2 includes a locking member 23, and the locking member 23 moves along the rotation axis of the clutch assembly 2 as the clutch assembly 2 rotates, so that the locking member 23 is locked or disengaged from the rotation stopping portion 11. Through this structural design in this embodiment, while ensuring that the switching action is rapid and accurate, the complexity of the mechanism itself is simplified, thereby improving the reliability of the entire system.

[0045] Please refer to Figure 2 , Specifically, the rotation stopping portion 11 is provided with internal teeth, and three outer protrusions 231 are provided on the outer periphery of the locking member 23. Outer teeth 232 are provided at the ends of the outer protrusions 231. When the internal teeth are in a locked state with the outer teeth 232, the clutch assembly 2 cannot rotate relative to the main body 1. The number of outer protrusions 231 can be set to four, six, or eight according to design requirements. The best solution is to be evenly distributed along the circumference, and the force is more uniform during the locking and moving processes. For example, the rotation stopping portion 11 can be implemented in the form of an internal gear ring, and outer teeth 232 for cooperating with the internal gear ring are provided on the outer periphery of the locking member 23. Such a design can ensure that the clutch assembly 2 does not rotate relative to the main body 1 in the locked state, ensuring the stability during locking. In addition to the internal gear ring, the outer teeth 232 sleeve method can also be selected, that is, the rotation stopping portion 11 is an outer teeth 232 sleeve, and internal teeth for meshing with the outer teeth 232 sleeve are provided on the inner circumference of the locking member 23.

[0046] Furthermore, the rotation stopping portion 11 is an internal gear ring, outer teeth 232 for cooperating with the internal gear ring are provided on the outer periphery of the locking member 23, and a reset member is provided between the locking member 23 and the rotation stopping portion 11. The reset member preferably adopts a spring 22 structure, such as a compression spring 22, and the spring 22 is sleeved on the rotating shaft 12. When the locking member 23 is separated from the rotation stopping portion 11, the reset member can automatically return the locking member 23 to the initial position, avoiding the influence of the locking effect caused by the position deviation of the locking member 23 due to external factors.

[0047] The rotary clutch mechanism further includes a driving member 24 and an operating member 3. In this embodiment, the operating member 3 is composed of two symmetric parts on the left and right fixed together by screws. The driving member 24 is fixedly connected with a rotary lock 21, and the driving member 24 is driven to rotate around the rotating shaft 12 through the rotary lock 21. A lock cover 25 buckles the driving member 24 and the rotary lock 21 into one body. When the driving member 24 rotates, it can make the locking member 23 move closer to or away from the rotation stopping portion 11 to achieve the purpose of locking or unlocking. The locking member 23 is slidably connected to the operating member 3, and the operating member 3 and the locking member 23 can rotate integrally. This structure can control the movement of the locking member 23 more flexibly and further optimize the functionality of the mechanism.

[0048] The specific form of the driving member 24 can be diverse. For example, a worm and worm gear structure, a motor driving structure, or a manual driving structure can be adopted. The worm and worm gear structure is suitable for situations that require a large locking force. The motor driving structure can achieve higher precision in automatic control, while the manual driving structure is suitable for low-power applications.

[0049] The operating member 3 is provided with a sliding groove 31. The external teeth 232 of the locking member 23 are slidably connected in the sliding groove 31, so that the locking member 23 can slide relative to the operating member 3 along the rotation axis. The driving member 24 can be a gear, a cam, or other similar structures. The specific shape of the sliding groove 31 on the operating member 3 can be linear, arc-shaped, or curved. The specific shape can be adjusted according to actual needs to improve the stability and reliability of the system. In this embodiment, it is a linear sliding groove 31. The inner side of the sliding groove 31 can be designed as a smooth surface to reduce friction during sliding. To ensure smooth sliding, a lubrication structure can also be provided in the sliding groove 31, such as using lubricating grease or lubricating paste to reduce the friction generated during sliding.

[0050] Please refer to Figure 3 and Figure 4 In order to achieve precise drive control of the driving member 24, in this embodiment, three protrusions 241 are provided at intervals in the circumferential direction of the driving member 24. A pushing surface 242 is provided on the end surface of the protrusion 241. The locking member 23 is provided with a pressure-receiving surface 233. Both the pushing surface 242 and the pressure-receiving surface 233 are inclined surfaces or curved surfaces that extend and change along the axial direction. When the driving member 24 rotates, the pushing surface 242 applies a force to the pressure-receiving surface 233, causing the locking member 23 to move along the rotation axis direction and achieve locking or disengaging with the anti-rotation portion 11. The design of the pushing surface 242 can be divided into a linear pushing surface 242 or a conical pushing surface 242 according to needs. The former can be used in occasions that require fine adjustment for a long time, while the latter can achieve locking or disengaging actions faster. At the same time, the pushing surface 242 extends along the rotation axis direction towards the anti-rotation portion 11 in the locking rotation direction to enhance the locking effect of the locking member 23.

[0051] Please refer to Figures 5 - 7 During installation, the spring 22 and the locking member 23 are sleeved on the rotating shaft 12 in sequence. The operating member 3 is connected to the main body 1 so as to limit the spring 22 and the locking member 23 between the anti-rotation portion 11 and the operating member 3. The rotary lock 21 is buckled on the outside of the operating member 3. The driving member 24 passes through the through holes on the rotary lock 21 and the operating member 3 in sequence and abuts against the locking member 23. The lock cover 25 buckles the driving member 24 and the rotary lock 21 into one body to achieve synchronous movement of the rotary lock 21 and the driving member 24. The driving member 24 and the rotary lock 21 can also be fixed into one body by a special-shaped buckling or screw connection method. In order to achieve reliable adjustment of the angle of the operating member 3 relative to the main body 1, the rotary clutch mechanism is two sets of mechanisms symmetrically arranged on both sides of the main body 1. By rotating the rotary lock 21, the synchronous actions of the two sets of rotary clutch mechanisms can be driven synchronously.

[0052] Please refer to Figure 8 , in the disengaged state, the locking member 23 slides along the rotating shaft 12 away from the anti-rotation portion 11, the external teeth 232 are disengaged from the internal teeth on the anti-rotation portion 11, and the locking member 23 can rotate relative to the body 1.

[0053] Please refer to Figure 9 , in the locked state, the locking member 23 slides along the rotating shaft 12 towards the anti-rotation portion 11, the external teeth 232 are engaged with the internal teeth on the anti-rotation portion 11, and the locking member 23 cannot rotate relative to the body 1.

[0054] The implementation principle of this embodiment is as follows: Referring to the above figures, rotate the rotary lock 21, the rotary lock 21 drives the driving member 24 to rotate synchronously, the driving member 24 pushes the locking member 23 to move closer to or away from the internal teeth along the axis of the rotating shaft 12, and the locking member 23 slides relative to the operating member 3 along the sliding groove 31 to achieve the engagement and disengagement of the locking member 23 and the body 1. In the disengaged state, the operating member 3 drives the locking member 23 to rotate relative to the body 1. In the locked state, the external teeth 232 of the locking member 23 are engaged with the internal teeth of the body 1, and the relative angle between the operating member 3 and the body 1 is locked, and the operating member 3 cannot rotate relative to the body 1, thereby limiting the operating angle of the operating member 3 and the brush head 4. By adding the driving member 24 and the operating member 3 in the clutch assembly 2 in this embodiment, precise control of the locking member 23 is achieved. The sliding connection between the driving member 24 and the operating member 3 makes the switching of the mechanism in different states more flexible and reliable, and further optimizes the performance of the entire rotary clutch mechanism.

[0055] Through the design of the above specific embodiments, the rotary clutch mechanism of the present application simplifies the complexity of the mechanism while ensuring rapid and accurate switching actions, significantly improving the reliability and durability of the entire system. This mechanism is compact in structure, easy to assemble and maintain, and applicable to a wide range of mechanical equipment fields. Embodiment

[0056] The difference from Embodiment 1 is that this embodiment provides another way for the locking member 23 to move. The driving member 24 is provided with a cylinder or a ring groove, the locking member 23 is provided with a ring groove or a cylinder, and the cylinder slides in the ring groove. When the driving member 24 rotates, the sliding fit of the protrusion 241 in the ring groove causes the locking member 23 to move closer to or away from the anti-rotation portion 11 and finally achieve locking or disengaging with the anti-rotation portion 11. This structure can achieve different locking effects in different working states. Embodiment

[0057] This embodiment provides a handheld tool, including the rotary clutch mechanism in Embodiment 1 or Embodiment 2, which not only improves the operating performance and usability, but also enhances the safety and adaptability, providing users with a more efficient and reliable tool experience.

[0058] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and what is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will also have various changes, modifications, substitutions and variations, and all these changes, modifications, substitutions and variations fall within the scope of the present utility model claimed.

Claims

1. A rotary clutch mechanism, characterized in that: It includes a main body and a clutch assembly rotatably connected to the main body, the main body is provided with a rotation-stopping part, and the clutch assembly includes a locking member, which moves along the rotation axis of the clutch assembly as the clutch assembly rotates, so that the locking member is locked with or disengaged from the rotation-stopping part.

2. The rotary clutch mechanism according to claim 1, characterized in that: The anti-rotation portion is provided with internal teeth / external teeth, and the locking member is provided with external teeth / internal teeth. When the internal teeth are locked with the external teeth, the clutch assembly cannot rotate relative to the body.

3. The rotary clutch mechanism according to claim 2, characterized in that: The anti-rotation part is an inner gear ring, the outer periphery of the locking member is provided with outer teeth for cooperating with the inner gear ring, and a reset member is provided between the locking member and the anti-rotation part.

4. The rotary clutch mechanism according to claim 3, characterized in that: The clutch assembly further comprises a driving member and an operating member which are rotatably connected to each other, the operating member is provided with a slide groove, and the outer teeth are slidably connected in the slide groove so that the locking member can slide relative to the operating member along the rotation axis.

5. The rotary clutch mechanism according to claim 1, characterized in that: The clutch assembly also includes a driving member and an operating member. When the driving member rotates, the locking member can move closer to or away from the anti-rotation portion. The locking member is slidably connected to the operating member, and the operating member and the locking member can rotate integrally.

6. The rotary clutch mechanism according to claim 5, characterized in that: The driving member is provided with a pushing surface, and the locking member is provided with a pressure surface. After the driving member rotates and the pushing surface applies force to the pressure surface to move the locking member, the locking member is locked with the anti-rotation portion.

7. The rotary clutch mechanism according to claim 5, characterized in that: The driving member is provided with a column / annular groove, and the locking member is provided with annular groove / column. After the driving member rotates and the column slides in the annular groove to make the locking member move away from the anti-rotation part, the locking member disengages from the anti-rotation part.

8. The rotary clutch mechanism according to any one of claims 5 to 7, characterized in that: The anti-rotation part is an inner gear ring, the outer periphery of the locking member is provided with external teeth for cooperating with the inner gear ring, the operating member is provided with a slide groove, and the external teeth are slidably connected in the slide groove so that the locking member and the operating member can slide relative to each other along the rotation axis.

9. The rotary clutch mechanism according to claim 6, characterized in that: The pushing surface extends toward the rotation stop portion along the rotation axis in the locking rotation direction.

10. A handheld tool, characterized in that: It comprises a rotary clutch mechanism as described in any one of claims 1 to 9.

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