Clutch device and medical device

Abstract

The utility model belongs to the technical field of medical equipment, concretely relates to a kind of clutch device and medical equipment, clutch device includes: installation carrier;First rotating member and second rotating member are rotationally arranged relative to the installation carrier;Clutch component, the guide mechanism for guiding the clutch component along the axial direction of the second rotating member relative to the second rotating member is equipped between the clutch component and the second rotating member, the clutch component is synchronously rotationally connected with the second rotating member by multiple guide mechanisms being dispersedly arranged along the circumferential direction of the second rotating member;Coupling mechanism is equipped between the clutch component and the first rotating member;It further includes clutch driving component for driving the activity of the clutch component.The utility model reduces the operating resistance of manual disengagement under emergency by dispersing transmission load to multiple guide mechanisms, greatly improves the reliability and immediacy of safety operation;Ensure the safety of equipment and personnel.

Description

Technical Field

[0001] This utility model belongs to the field of medical equipment technology, specifically relating to a clutch device and medical equipment. Background Technology

[0002] Medical equipment often contains moving parts, such as the beds in CT (Computed Tomography) / MR (Magnetic Resonance Imaging) systems. These moving parts are driven by motors or other drive sources to automatically adjust their position. In emergency situations, such as when the bed becomes stuck or the drive control switch fails, it is necessary to manually disconnect the power transmission between these moving parts and the drive source using a clutch mechanism to ensure the safety of the equipment and personnel. While the clutch mechanism is part of the transmission system when engaged, existing clutch mechanisms typically concentrate the transmission load in localized areas, such as between the key and keyway. In such cases, the disengagement resistance of the clutch mechanism is high, making it prone to failure and posing a significant safety hazard. Utility Model Content

[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a clutch device and medical device that can reduce the disengagement resistance of the clutch device and improve the safety of medical devices.

[0004] To achieve the above and other related objectives, this utility model provides a clutch device for use in medical devices, the clutch device comprising:

[0005] Installation carrier;

[0006] The first rotating member and the second rotating member are rotatably arranged relative to the mounting carrier. One of the first rotating member and the second rotating member is used for transmission connection with the drive source, and the other is used for transmission connection with the moving parts of the medical device.

[0007] A clutch component is provided between the clutch component and the second rotating component, and a guide mechanism is provided to guide the clutch component to move relative to the second rotating component along the axial direction of the second rotating component. The clutch component is synchronously rotated and connected to the second rotating component through a plurality of guide mechanisms distributed circumferentially along the second rotating component.

[0008] A coupling mechanism is provided between the clutch component and the first rotating component. The coupling mechanism is configured to switch between a coupling state that drives the clutch component and the first rotating component and a decoupling state that disconnects the clutch component from the first rotating component when the clutch component moves relative to the second rotating component along the axial direction of the second rotating component.

[0009] It also includes a clutch drive component for driving the clutch component to move relative to the second rotating member along the axial direction of the second rotating member.

[0010] In an optional embodiment of the present invention, the second rotating member includes a main shaft and a protrusion that protrudes radially from the circumferential surface of the main shaft. The clutch component is loosely fitted on the main shaft, and the guide mechanism is disposed between the clutch component and the protrusion. The guide mechanism is disposed radially from the main shaft at a distance.

[0011] In an optional embodiment of this utility model, the guiding mechanism includes a guiding part and a guided part, the guiding part and the guided part being slidably engaged in a direction parallel to the axis of the second rotating member, one of the guiding part and the guided part being disposed on the clutch member, and the other being disposed on the protrusion.

[0012] In an optional embodiment of the present invention, one of the guiding portion and the guided portion includes a pin, and the other includes a hole or groove that mates with the pin, wherein the axial direction of the pin is parallel to the axial direction of the second rotating member.

[0013] In an optional embodiment of this utility model, the protrusion is separately disposed from the spindle, and the protrusion is fixedly connected to the spindle by fasteners.

[0014] In an optional embodiment of this utility model, the axis of the first rotating member is coaxial with the axis of the second rotating member.

[0015] In an optional embodiment of this utility model, the first rotating member is rotatably connected to the second rotating member via a first bearing, and the second rotating member is rotatably connected to the mounting carrier via a second bearing.

[0016] In an optional embodiment of this utility model, the clutch drive component includes a lever, which is movably connected to the mounting carrier. The lever includes a drive portion that abuts against at least one end of the clutch component and a trigger portion for receiving external force. The lever is configured such that when the trigger portion is subjected to an external force, the drive portion can drive the clutch component to move axially along the second rotating member in such a way that the coupling mechanism switches from the coupled state to the decoupled state.

[0017] In an optional embodiment of the present invention, an elastic element is further included, the elastic element being configured such that its elastic force can drive the clutch component to move axially along the second rotating member in such a way that the coupling mechanism switches from the decoupled state to the coupled state.

[0018] In an optional embodiment of this utility model, the lever is hinged to the mounting carrier, and the elastic element is disposed between the clutch component and the protrusion.

[0019] In an optional embodiment of this utility model, the coupling mechanism includes at least one of a jaw clutch, a gear clutch, and a friction clutch.

[0020] To achieve the above and other related objectives, this utility model also provides a medical device, comprising:

[0021] frame;

[0022] The drive source is mounted on the rack;

[0023] Moving parts, movably disposed relative to the frame; and

[0024] The aforementioned clutch device;

[0025] The mounting carrier of the clutch device is disposed on the frame, the first rotating component is driven by the drive source, and the second rotating component is driven by the moving component.

[0026] In an optional embodiment of this invention, the moving component includes a hospital bed.

[0027] The technical advantages of this invention are as follows: The clutch device provided by this invention significantly reduces the operational resistance of manual disengagement in emergency situations, greatly improving the reliability and immediacy of safe operation; the clutch device achieves synchronous rotational connection between the clutch component and the second rotating component through multiple guide mechanisms distributed circumferentially along the second rotating component, fundamentally changing the load transmission path and distributing the transmission load to multiple guide mechanisms. This load distribution directly leads to a reduction in pressure per unit area, thereby greatly reducing the static and dynamic friction between the clutch component and the second rotating component during axial sliding; even when the moving component is subjected to a large external load, the resistance of the clutch component moving axially remains very small. The operator can easily and quickly switch the clutch device to the decoupled state without expending a great deal of physical strength, instantly cutting off power transmission, fundamentally eliminating the safety hazards caused by the clutch being stuck and unable to disengage, and ensuring the safety of equipment and personnel. Attached Figure Description

[0028] Figure 1 This is a perspective view of the clutch device in the coupled state provided in an embodiment of the present invention;

[0029] Figure 2 This is a radial view of the clutch device in the coupled state provided in an embodiment of the present invention;

[0030] Figure 3yes Figure 2 AA section view;

[0031] Figure 4 This is a perspective view of the clutch device in the decoupled state provided in an embodiment of this utility model;

[0032] Figure 5 This is a radial view of the clutch device in the decoupled state provided in an embodiment of the present invention;

[0033] Figure 6 yes Figure 5 BB cross-sectional view;

[0034] Figure 7 This is an exploded view of the clutch device provided in an embodiment of this utility model. Detailed Implementation

[0035] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0036] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0037] Medical equipment often has moving parts, such as the beds in CT / MR systems. These moving parts are driven by motors or other drive sources to automatically adjust their positions. During operation, these parts may encounter emergencies, such as obstacles in their path, foreign objects in their transmission system, or malfunctioning control switches of the drive source. When these emergencies occur, manual switching of power transmission between the drive source and the moving parts is necessary to ensure equipment and personnel safety. One solution utilizes a manual clutch to disconnect the power transmission between the drive source and the moving parts. The manual clutch includes a power input end, a power output end, and a clutch disc. The clutch disc, via a key, engages with the shaft of the power output end, enabling axial sliding and circumferential synchronous rotation. As the clutch disc slides axially, it engages or disengages from the power input end. The drawback of this approach is that the power transmission between the clutch disc and the power output end relies entirely on the cooperation of the key and keyway. Therefore, the stress between the clutch disc and the power output end is concentrated between the key and keyway. This stress concentration results in significant disengagement resistance for the clutch disc, especially when there is an external load on the moving parts. The key and keyway can easily jam, making it difficult to disengage the clutch disc manually, leading to manual clutch failure and potentially serious safety accidents. To address this, this invention provides a clutch device that uses multiple circumferentially distributed guide mechanisms between the clutch component and the rotating part (power output end or power input end) to achieve power transmission. The load between the clutch component and the rotating part is distributed to each guide mechanism, thereby reducing the motion resistance of the clutch component relative to the rotating part during axial movement. This ensures that the clutch component can easily disengage from the coupled state to the decoupled state, improving the reliability of the clutch device and avoiding safety risks caused by clutch device failure in medical equipment.

[0038] The technical solution of this utility model will be described in detail below with reference to specific embodiments:

[0039] This utility model provides a medical device, including but not limited to CT / MR equipment. Any medical device with moving parts that requires emergency stopping should be applicable to this utility model. The medical device includes a frame, a drive source, moving parts, and a clutch device. The frame is used to mount the various components of the medical device. The drive source is mounted on the frame. In specific embodiments, the drive source includes, but is not limited to, driving elements such as motors and hydraulic motors. The moving parts are movably arranged relative to the frame. In some embodiments, the moving parts may be, for example, a hospital bed. Since the hospital bed is a moving part that interacts closely with the human body, the reliability of the clutch device is more critical. However, this does not mean that the moving parts can only be hospital beds. In other embodiments, the moving parts may also be components such as the collimator of an X-ray machine, a robotic arm, or a slide table.

[0040] Please see Figure 1-7 As shown, the clutch device includes a mounting carrier 10, a first rotating member 20, a second rotating member 30, and a clutch component 40. The mounting carrier 10 is disposed on the frame; specifically, the mounting carrier 10 can be part of the frame or an independent structure mounted on the frame. The first rotating member 20 and the second rotating member 30 are rotatably disposed relative to the mounting carrier 10. One of the first rotating member 20 and the second rotating member 30 is connected to the drive source, and the other is connected to the moving component. It should be noted that the transmission connection can be a direct connection between the rotating member and the drive source or the moving component, or an indirect connection between the rotating member and the drive source or the moving component through a transmission mechanism. The transmission mechanism includes, but is not limited to, belts. The clutch mechanism includes wheel mechanisms, sprocket mechanisms, gear mechanisms, linkage mechanisms, cam mechanisms, etc.; a guide mechanism 50 is provided between the clutch component 40 and the second rotating component 30 to guide the clutch component 40 to move relative to the second rotating component 30 along the axial direction of the second rotating component 30. The clutch component 40 is synchronously connected to the second rotating component 30 through a plurality of guide mechanisms 50 distributed circumferentially along the second rotating component 30; a coupling mechanism 60 is provided between the clutch component 40 and the first rotating component 20. The coupling mechanism 60 is configured such that when the clutch component 40 moves relative to the second rotating component 30 along the axial direction of the second rotating component 30, the coupling mechanism 60 can... Figure 1 , 2 The coupling state shown in Figures 3 and 4, which connects the clutch component 40 to the first rotating component 20 in a transmission manner, and Figure 4 , 5 The system includes switching between the decoupling states shown in Figure 6, where the clutch component 40 is disconnected from the first rotating member 20; it also includes a clutch drive component 70 for driving the clutch component 40 to move relative to the second rotating member 30 along the axial direction of the second rotating member 30. In a specific embodiment, the clutch drive component 70 can be a manual clutch drive component or an automatic clutch drive component driven by a backup drive element, such as an electric actuator or a cylinder. Considering the reliability requirements of the clutch drive component 70, a manual clutch drive component is preferred.

[0041] The clutch device provided by this utility model significantly reduces the operational resistance of manual disengagement in emergency situations, greatly improving the reliability and immediacy of safe operation. The clutch device achieves synchronous rotational connection between the clutch component 40 and the second rotating component 30 through multiple guide mechanisms 50 distributed circumferentially along the second rotating component 30. This fundamentally changes the load transmission path, distributing the transmission load to multiple guide mechanisms 50. The distribution of the load directly leads to a reduction in pressure per unit area, thereby greatly reducing the static and dynamic friction between the clutch component 40 and the second rotating component 30 when sliding axially. Even when the moving component is subjected to a large external load, the resistance of the clutch component 40 moving axially remains very small. The operator can easily and quickly switch the clutch device to the decoupled state without expending a lot of physical strength, instantly cutting off the power transmission. This fundamentally eliminates the safety hazards caused by the clutch being stuck and unable to disengage, ensuring the safety of equipment and personnel.

[0042] Please see Figure 1-7 As shown, in a preferred embodiment, the first rotating member 20 is driven to the drive source, and the second rotating member 30 is driven to the moving component. It should be understood that after the coupling mechanism 60 is decoupled, the clutch component 40 no longer rotates synchronously with the first rotating member 20, but the clutch component 40 still rotates synchronously with the second rotating member 30. Therefore, in this embodiment, the first rotating member 20 is driven to the drive source, and the second rotating member 30 is driven to the moving component. This can prevent the clutch component 40 from making ineffective movements following the first rotating member 20 after the coupling mechanism 60 is decoupled, thereby reducing the wear of the clutch component 40.

[0043] In some other embodiments, without considering the durability of the clutch component 40, the first rotating component 20 may be connected to the moving component in a transmission manner, and the second rotating component 30 may be connected to the drive source in a transmission manner.

[0044] Please see Figure 1-7As shown, in an optional embodiment of this utility model, the second rotating member 30 includes a main shaft 31 and a protrusion 32 that protrudes radially from the circumferential surface of the main shaft 31. The clutch member 40 is loosely fitted on the main shaft 31, and the guide mechanism 50 is disposed between the clutch member 40 and the protrusion 32. The guide mechanism 50 is disposed radially from the main shaft 31 at a distance. This embodiment extends the lever arm of power transmission by placing the guide mechanism 50 on the radially protruding protrusion 32 and distributing it radially from the main shaft 31, thereby reducing the internal frictional resistance of the guide mechanism 50. In addition, the multiple circumferentially distributed guide mechanisms 50 together constitute a load-sharing structure, which can decompose the huge concentrated load originally concentrated at the keyway of the main shaft 31 into multiple smaller, evenly distributed loads, greatly reducing local contact stress. Therefore, the motion resistance of the clutch member 40 is significantly reduced when it moves axially, ensuring that the clutch member 40 can easily and reliably disengage quickly under any load conditions.

[0045] Please see Figure 7 As shown, in an optional embodiment of this utility model, the guiding mechanism 50 includes a guiding part 51 and a guided part 52. The guiding part 51 and the guided part 52 are slidably engaged in a direction parallel to the axis of the second rotating member 30. One of the guiding part 51 and the guided part 52 is disposed on the clutch member 40, and the other is disposed on the protrusion 32. This embodiment, by setting the guiding mechanism 50 as a linear sliding pair composed of the guiding part 51 and the guided part 52, greatly improves the ease and reliability of clutch operation. The linear sliding engagement parallel to the axis provides precise and low-resistance guidance for the axial movement of the clutch member 40, effectively preventing additional frictional resistance caused by non-axial force or skew jamming. This simple sliding pair structure avoids the failure points that may occur in complex mechanisms, significantly improving the smoothness and reliability of clutch operation.

[0046] Please see Figure 7As shown, in an optional embodiment of this utility model, one of the guiding part 51 and the guided part 52 includes a pin, and the other includes a hole or groove that mates with the pin. The axial direction of the pin is parallel to the axial direction of the second rotating member 30. This embodiment uses the fit between a pin and a hole / groove as the linear guiding mechanism 50, achieving optimization in manufacturing, assembly, and reliability. The processing technology of the pin and the hole / groove is mature, making it easy to ensure the consistency of the fit clearance. This allows for uniform load distribution when multiple guiding mechanisms 50 operate simultaneously, avoiding jamming of individual mechanisms due to processing errors, and making the axial movement of the clutch component 40 smoother. This simple, reliable, and low-cost structure achieves efficient force transmission while minimizing the failure rate of the mechanism, ensuring the immediacy and determinism of the clutch action under any working condition.

[0047] It should be understood that the specific implementation of the guide part 51 and the guided part 52 is not unique. For example, in some other embodiments, if the complexity and cost of the structure are not considered, the guide part 51 and the guided part 52 can be respectively set as a guide rail and a slider.

[0048] Please see Figure 3 , 6 As shown, in an optional embodiment of this utility model, the protrusion 32 and the main shaft 31 are separately configured, and the protrusion 32 is fixedly connected to the main shaft 31 by fasteners. Specifically, the protrusion 32 and the main shaft 31 can be circumferentially fixed by the cooperation of a key and a keyway, and the protrusion 32 can be clamped by a pad and a nut to achieve axial fixation of the protrusion 32. It should be noted that there is no need for axial sliding between the protrusion 32 and the main shaft 31, so there is no need to consider the stress concentration problem when the key and keyway are in contact. This embodiment, by designing the protrusion 32 and the spindle 31 as separate structures and connecting them with fasteners, greatly reduces the processing difficulty and cost of individual parts. In particular, the processing of the high-precision guide part 51 (such as a pin or hole) on the protrusion 32 becomes easier. During assembly, the spindle 31 and the protrusion 32 can be processed and adjusted independently, and finally axially pressed and fixed by keyway circumferential positioning and fasteners. This assembly method not only simplifies the process, but also makes it easy to ensure the circumferential positional accuracy between multiple protrusions 32, thereby ensuring that all guide mechanisms 50 can evenly distribute the load and avoid assembly difficulties or interference caused by cumulative errors.

[0049] It should be understood that, without considering the complexity of processing and assembly, the protrusion 32 and the spindle 31 can also be set as an integral structure.

[0050] Please see Figure 1-6As shown, in an optional embodiment of this utility model, the axis of the first rotating member 20 is coaxially arranged with the axis of the second rotating member 30. This embodiment optimizes the radial spatial layout of the clutch device by coaxially arranging the axes of the first rotating member 20 and the second rotating member 30; the coaxial structure makes the power transmission path and the clutch operation path completely overlap in the axial projection, avoiding the additional increase in radial dimension caused by the misalignment or parallel arrangement of the axes, making the radial structure of the entire clutch device more compact, and it can be easily integrated into the limited installation space of medical equipment (such as CT / MR bed drive system), improving the overall integrity and aesthetics of the device.

[0051] In some other embodiments, if space utilization is not a consideration, the first rotating member 20 and the second rotating member 30 may be configured to be radially offset.

[0052] Please see Figure 3 , 6 As shown, in an optional embodiment of this utility model, the first rotating component 20 is rotatably connected to the second rotating component 30 via a first bearing 311, and the second rotating component 30 is rotatably connected to the mounting carrier 10 via a second bearing 312. This embodiment achieves a modular design of the clutch device by using a first bearing 311 to connect the first and second rotating components 30, and then using a second bearing 312 to connect the second rotating component 30 to the mounting carrier 10. The first rotating component 20 and the second rotating component 30 are pre-assembled into a complete transmission module via the first bearing 311. This module can be pre-aligned and its relative motion relationship adjusted precisely. During overall assembly, this module only needs to be installed onto the mounting carrier 10 once via the second bearing 312, significantly reducing assembly difficulty and time, while avoiding the complex operation of adjusting parts one by one in a narrow space. If maintenance or replacement is required, the entire module can be disassembled, greatly improving the maintainability of the equipment. In addition, this embodiment allows the two sets of bearings to be staggered axially, avoiding the superposition of radial dimensions and ensuring the compactness of the structure.

[0053] In some other embodiments, if the complexity of the assembly process is not considered, the first rotating component 20 can also be directly mounted on the mounting carrier 10 via a bearing.

[0054] Please see Figure 1 , 2As shown in Figures 4, 5, and 7, in an optional embodiment of this utility model, the clutch drive component 70 includes a lever, which is movably connected to the mounting carrier 10. The lever includes a drive portion 72 that abuts against at least one end of the clutch component 40, and a trigger portion 71 for receiving external forces. The lever is configured such that when the trigger portion 71 is subjected to an external force, the drive portion 72 can drive the clutch component 40 to switch the coupling mechanism 60 from the coupled state to the decoupled state, moving it axially along the second rotating member 30. This embodiment improves the reliability of the clutch device by using a lever as the manual clutch drive component 72, ensuring a high success rate in emergency situations. The force applied by the operator to the trigger portion 71 is applied to the clutch component 40 through the drive portion 72, thereby easily overcoming the significantly reduced axial movement resistance. Simultaneously, the manual clutch drive component 72 does not rely on potentially faulty auxiliary systems such as circuits or pneumatic systems; its action is direct and without delay, completely avoiding the risk of malfunction or failure due to intermediate link failures.

[0055] Please see Figure 3 , 6 As shown in Figure 7, in an optional embodiment of this utility model, an elastic element 80 is further included. The elastic element 80 is configured such that its elastic force can drive the clutch component 40 to switch the coupling mechanism 60 from the decoupled state to the coupled state along the axial direction of the second rotating member 30. This embodiment achieves the automatic reset function of the clutch device by adding the elastic element 80, thereby effectively avoiding the risk of equipment malfunction due to human forgetfulness of operation. The elastic element 80 provides a continuous, unidirectional axial thrust to the clutch component 40, ensuring that the clutch component 40 can automatically and reliably return to the coupled state under the drive of the elastic force when there is no human intervention, so that the power transmission channel can be reconnected. This ensures the continuous operation capability of the equipment under normal working conditions without the need for additional engagement operation by the operator. On the other hand, this purely mechanical automatic reset mechanism does not rely on external power or control signals, further improving the reliability of the entire clutch device as a safety component.

[0056] Please see Figure 1-6As shown, in an optional embodiment of this utility model, the lever is hinged to the mounting carrier 10, and the elastic element 80 is disposed between the clutch component 40 and the protrusion 32. The hinged lever forms a force-saving lever, allowing the operator to generate a large torque at the trigger 71 with a small force, thereby easily driving the clutch component 40 to overcome axial movement resistance and reducing the manual effort required for emergency disengagement. Simultaneously, the elastic element 80 acts directly between the clutch component 40 and the protrusion 32, ensuring that its elastic force is evenly transmitted to the clutch component 40, guaranteeing balanced force during reset and preventing skewing or jamming. This achieves smooth, reliable, and shock-free automatic reset, further ensuring the accuracy and reliability of the clutch device's operation. It should be understood that the specific implementation of the lever and the elastic element 80 is not unique. For example, in some other embodiments, the lever can be configured as a translational structure capable of driving the clutch component 40 to move bidirectionally. In this case, the elastic force of the elastic element 80 can act on the lever, achieving the reset of the clutch component 40 through the lever.

[0057] In an optional embodiment of this invention, the coupling mechanism 60 includes at least one of a jaw clutch, a gear clutch, and a friction clutch. The clutch device of this invention has good compatibility and can adapt to the torque transmission characteristics and engagement precision requirements of different medical devices. The circumferentially distributed guide mechanism 50 allows the clutch component 40 to easily disengage under any circumstances, enabling the coupling mechanism 60 to focus on completing the engagement and disengagement actions. The coupling mechanism 60 can flexibly select the most suitable coupling method according to specific indicators such as the required transmission torque, engagement smoothness, and centering precision of the equipment, thus expanding the application range of the clutch device.

[0058] In summary, the clutch device provided by this utility model significantly reduces the operational resistance of manual disengagement in emergency situations, greatly improving the reliability and immediacy of safe operation. The clutch device achieves synchronous rotational connection between the clutch component 40 and the second rotating component 30 through multiple guide mechanisms 50 distributed circumferentially along the second rotating component 30, fundamentally changing the load transmission path and distributing the transmission load to multiple guide mechanisms 50. This load distribution directly leads to a reduction in pressure per unit area, thereby greatly reducing the static and dynamic friction between the clutch component 40 and the second rotating component 30 during axial sliding. Even when the moving component is subjected to a large external load, the resistance of the clutch component 40 moving axially remains very small. The operator can easily and quickly switch the clutch device to the decoupled state without expending a great deal of physical effort, instantly cutting off power transmission. This fundamentally eliminates the safety hazards caused by the clutch being stuck and unable to disengage, ensuring the safety of equipment and personnel.

[0059] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A clutch device, characterized in that, For use in medical devices, the clutch device includes: Installation carrier; The first rotating member and the second rotating member are rotatably arranged relative to the mounting carrier. One of the first rotating member and the second rotating member is used for transmission connection with the drive source, and the other is used for transmission connection with the moving parts of the medical device. A clutch component is provided between the clutch component and the second rotating component, and a guide mechanism is provided to guide the clutch component to move relative to the second rotating component along the axial direction of the second rotating component. The clutch component is synchronously connected to the second rotating component through a plurality of guide mechanisms distributed circumferentially along the second rotating component. A coupling mechanism is provided between the clutch component and the first rotating component. The coupling mechanism is configured such that when the clutch component moves relative to the second rotating component along its axial direction, the coupling mechanism can... The coupling state of the clutch component and the first rotating component in transmission connection and The decoupling state that disconnects the clutch component from the first rotating component. Switch between them; It also includes a clutch drive component for driving the clutch component to move relative to the second rotating member along the axial direction of the second rotating member.

2. The clutch device according to claim 1, characterized in that, The second rotating component includes a main shaft and a protrusion that protrudes radially from the circumferential surface of the main shaft. The clutch component is loosely fitted on the main shaft. The guide mechanism is disposed between the clutch component and the protrusion, and the guide mechanism is disposed radially from the main shaft at a distance.

3. The clutch device according to claim 2, characterized in that, The guiding mechanism includes a guiding part and a guided part, the guiding part and the guided part being slidably engaged in a direction parallel to the axis of the second rotating member, one of the guiding part and the guided part being disposed on the clutch member, and the other being disposed on the protrusion.

4. The clutch device according to claim 3, characterized in that, One of the guiding portion and the guided portion includes a pin, and the other includes a hole or groove that mates with the pin, wherein the axial direction of the pin is parallel to the axial direction of the second rotating member.

5. The clutch device according to claim 2, characterized in that, The protrusion is separate from the spindle, and the protrusion is fixedly connected to the spindle by fasteners.

6. The clutch device according to claim 2, characterized in that, The axis of the first rotating component is coaxial with the axis of the second rotating component.

7. The clutch device according to claim 6, characterized in that, The first rotating component is rotatably connected to the second rotating component via a first bearing, and the second rotating component is rotatably connected to the mounting carrier via a second bearing.

8. The clutch device according to claim 2, characterized in that, The clutch drive component includes a lever movably connected to the mounting carrier. The lever includes a drive portion that abuts against at least one end of the clutch component, and a trigger portion for receiving external force. The lever is configured such that when the trigger portion is subjected to an external force, the drive portion can drive the clutch component to... The coupling mechanism is moved along the axial direction of the second rotating member in a manner that switches the coupling mechanism from the coupling state to the decoupling state.

9. The clutch device according to claim 8, characterized in that, It also includes an elastic element, which is assembled such that its elastic force can drive the clutch component to... The coupling mechanism is moved along the axial direction of the second rotating member in a manner that switches the coupling mechanism from the decoupled state to the coupled state.

10. The clutch device according to claim 9, characterized in that, The lever is hinged to the mounting carrier, and the elastic element is disposed between the clutch component and the protrusion.

11. The clutch device according to claim 1, characterized in that, The coupling mechanism includes at least one of a jaw clutch, a gear clutch, and a friction clutch.

12. A medical device, characterized in that, include: frame; The drive source is mounted on the rack; The moving parts are movably disposed relative to the frame; as well as The clutch device according to any one of claims 1 to 11; The mounting carrier of the clutch device is disposed on the frame, the first rotating component is driven by the drive source, and the second rotating component is driven by the moving component.

13. The medical device according to claim 12, characterized in that, The moving parts include the hospital bed.

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