Lifting frame for assisting surgical disinfection operation

Abstract

The invention discloses a lifting frame for assisting surgical disinfection operation, which belongs to the field of medical equipment and comprises a winding roll, a hand driving mechanism and an electric driving mechanism. And a first clutch is arranged between the hand driving mechanism and the winding roll. And a second clutch is arranged between the electric driving mechanism and the winding roll. The winding roll is a core execution component and directly controls the traction rope to ascend and descend so as to complete lower limb ascending and descending operation. The manual driving mechanism and the electric driving mechanism are selectively connected into the winding roll through independent clutches, and then the driving mode switching effect is achieved. Wherein the electric mode realizes labor-saving lifting operation, and the manual mode deals with power failure and part faults and can cover all clinical scenes. The manual driving system and the electric driving system do not interfere with each other, and power conflicts are avoided.

Description

Technical Field

[0001] The invention belongs to the field of medical equipment, and in particular is a lifting frame for assisting surgical disinfection operations. Background Art

[0002] In lower limb surgeries, such as orthopedics, vascular surgery, and trauma surgery, thorough preoperative disinfection of the patient's lower limbs is a key step in preventing postoperative infection. Traditional disinfection procedures require medical staff to elevate the patient's lower limbs to an appropriate position to ensure full contact with the disinfectant and prevent contamination of the operating table or non-target areas. Currently, clinical practice primarily relies on the following methods to achieve lower limb elevation.

[0003] For example, in the manual lifting method, medical staff manually lift the patient's lower limbs and maintain the posture. However, this method requires multiple medical staff to work together and consumes a lot of manpower. For obese or muscular patients, long-term lifting can easily lead to muscle fatigue and poor stability of the operator.

[0004] Or use simple auxiliary tools, such as slings, cushions, or adjustable brackets to temporarily support the lower limbs. Patent announcement number CN216365309U discloses a lower limb surgical disinfection auxiliary device, including a base, a support assembly, a traction rope, and a rope reel. After the patient's lower limb is hung on the hook, the traction rope is tightened by the ratchet rope reel and the lower limb is lifted to an appropriate height, so that the disinfection position is fully exposed, and it can be automatically locked, reducing the manpower burden. Although the ratchet rope reel can achieve a labor-saving effect through the lever principle, the length of the push-down handle is limited, and the operator still needs to apply a large force.

[0005] Patent publication number CN221950123U discloses a portable leg-lift stand for lower limb disinfection. This stand uses an electric drive to raise and lower fixed ropes, freeing the operator's hands. However, if the electric drive fails or loses power, the stand becomes unusable, lacking a manual switching mode. Summary of the Invention

[0006] The purpose of the present invention is to provide a lifting stand for assisting surgical sterilization operations, so as to solve the problems raised in the above-mentioned prior art.

[0007] Provided is a lifting frame for assisting surgical sterilization operations, comprising: cable reels; A hand-driven mechanism, wherein a first clutch is provided between the hand-driven mechanism and the winding reel; The electric drive mechanism is provided with a second clutch between the electric drive mechanism and the winding drum.

[0008] As a further embodiment of the present invention: the first clutch includes a first active disk and a first driven disk, the hand-driven mechanism is used to transmit torque to the first active disk, and the first driven disk is arranged at one end of the winding reel.

[0009] The first active disc receives manual torque and, through friction or meshing, drives the first driven disc, which in turn drives the winding disc to wind or release the traction rope. This structure enables controllable on / off of manual power transmission, and during disengagement, prevents idling resistance in the manual drive mechanism when the electric drive mechanism is driving the system.

[0010] As a further embodiment of the present invention: the hand-driven mechanism includes a first transmission shaft, a hand-driven component and a first self-locking ratchet, the first active disk has sliding freedom on the first transmission shaft, the hand-driven component transmits torque to the first active disk through the first transmission shaft, and the first self-locking ratchet is clamped between the hand-driven component and the first transmission shaft.

[0011] The first active disk slides on the first transmission shaft, enabling a clutching action between the first active disk and the first driven disk. Simultaneously, the first active disk's rotational freedom is restricted on the first transmission shaft, allowing the torque of the first transmission shaft to be transmitted to the first active disk. The manual drive is used to manually input torque, which is transmitted to the first active disk via the first transmission shaft. The first active disk then transmits the torque to the first driven disk through friction or meshing, forcing the cable reel to rotate. The first self-locking ratchet only allows the cable reel to rotate in one direction; releasing the ratchet locks the cable reel to prevent it from falling. The self-locking mechanism ensures patient safety without requiring the operator to apply continuous force.

[0012] As a further embodiment of the present invention: the hand-driven component is threadedly connected to the first transmission shaft, and the first self-locking ratchet is in contact with the end surface of the hand-driven component and the first transmission shaft respectively.

[0013] When the manual driver rotates in a tightening direction relative to the first transmission shaft, the first self-locking ratchet is securely clamped between the manual driver and the first transmission shaft until the threads stop engaging. As the manual driver rotates further, torque is simultaneously transmitted to the first transmission shaft and the first self-locking ratchet, driving the first transmission shaft to complete torque transmission and the first self-locking ratchet to complete one-way locking.

[0014] When the hand-driven part rotates in the direction of unscrewing relative to the first transmission shaft, since the first self-locking ratchet cannot reverse, a slight thread reverse rotation will occur between the hand-driven part and the first transmission shaft. Once the thread tends to disengage, the load of the cable reel forces the first transmission shaft to rotate rapidly in the direction of tightening with the hand-driven part. Then, during the continuous reverse rotation of the hand-driven part, the cable reel continues to release the traction rope without being affected by the self-locking effect of the first self-locking ratchet.

[0015] This structure can achieve self-locking and anti-falling after the hand-driven part drives the lower limb to complete the lifting action. After completing the limb disinfection operation, the limb lowering action can be completed by simply rotating the hand-driven part in the opposite direction without manually releasing the self-holding state of the first self-locking ratchet.

[0016] As a further embodiment of the present invention: the second clutch includes a second active disc and a second driven disc, the electric drive mechanism is used to transmit torque to the second active disc, and the second driven disc is arranged at one end of the winding reel.

[0017] The second active disc receives the electric drive torque and, through friction or meshing, drives the second driven disc, which in turn drives the winding disc to wind or release the traction rope. This structure enables controllable on / off switching of electric power transmission. During disengagement, it prevents the electric drive mechanism from generating idling resistance when the manual drive mechanism is driving the system, or prevents the self-sustaining force of the electric drive mechanism from interfering with the normal rotation of the manual drive mechanism.

[0018] As a further embodiment of the present invention: the electric drive mechanism includes a second transmission shaft, an electric drive component and a second self-locking ratchet, the second active disk has sliding freedom on the second transmission shaft, the electric drive component transmits torque to the second active disk through the second transmission shaft, and the second self-locking ratchet is clamped between the electric drive component and the second transmission shaft.

[0019] The second active disk can slide on the second transmission shaft to realize the clutch action between the second active disk and the first driven disk. At the same time, the second active disk is restricted in its rotational freedom on the second transmission shaft, so that the torque of the second transmission shaft can be transmitted to the second active disk. The electric drive is used to input mechanically generated torque, which is transmitted to the second active disk through the second transmission shaft. The second active disk then transmits the torque to the second driven disk through friction or meshing to force the cable reel to rotate. The second self-locking ratchet only allows the cable reel to rotate in one direction, and the electric drive torque stops, which locks it to prevent it from falling. The self-locking mechanism ensures patient safety while eliminating the need for the electric drive to continuously transmit torque.

[0020] As a further embodiment of the present invention: the electric drive component is threadedly connected to the second transmission shaft, and the second self-locking ratchet is in contact with the end surface of the electric drive component and the second transmission shaft respectively.

[0021] As the electric drive rotates in a tightening direction relative to the second transmission shaft, the second self-locking ratchet is securely clamped between the electric drive and the second transmission shaft until the threads stop engaging. As the electric drive rotates further, torque is simultaneously transmitted to the second transmission shaft and the second self-locking ratchet, driving the second transmission shaft to complete torque transmission and the second self-locking ratchet to complete one-way locking.

[0022] As a further embodiment of the present invention, the invention further comprises a manipulation component, wherein the manipulation component synchronously controls the clutching actions of the first clutch and the second clutch, and the clutching actions of the first clutch are opposite to those of the second clutch.

[0023] The operating component controls the two clutches synchronously, and the states of the first clutch and the second clutch are always opposite, eliminating the interference or damage of the mechanisms caused by the manual mode and electric mode being engaged at the same time. The mode conversion can be completed with a single action.

[0024] As a further embodiment of the present invention: the operating assembly includes two shift groups and a shift rod, the shift group has a hinge point that cooperates with the lifting frame shell, and the shift rod is used to control the two shift groups to rotate in the same direction around the hinge point.

[0025] The lever pushes the active ends of the two shifters, causing them to rotate about their respective hinge points. This creates a lever effect that causes the reactive ends of the shifters to engage and disengage their corresponding clutches. Because the movement of both ends of the lever is transmitted to the corresponding shifter at the same frequency and in the same direction, the two shifters rotate in the same direction, resulting in one clutch engaging and the other disengaging.

[0026] As a further embodiment of the present invention: the paddle group includes two paddles and a connecting rod, the two paddles are respectively arranged at both ends of the connecting rod, and two oppositely arranged limit blocks are provided on the paddle, and the opposite surfaces of the two limit blocks are in an arc-shaped structure.

[0027] The two paddles are connected by a connecting rod to achieve synchronized frequency response. They apply thrust to the clutch from either side, creating a balanced torque and preventing interference and stagnation caused by unbalanced clutch loading. A stopper with a curved guide surface guides the clutch disc along its curved surface, ensuring smooth engagement and disengagement.

[0028] Compared with the prior art, the present invention has the following beneficial effects: The cable reel is the core actuator, directly controlling the raising and lowering of the traction rope to complete the lower limb lifting and lowering operation. The manual and electric drive mechanisms selectively connect to the cable reel via independent clutches, thereby switching drive modes. The electric mode provides effortless lifting, while the manual mode handles power outages and component failures, covering all clinical scenarios. The manual and electric drive systems do not interfere with each other, avoiding power conflicts. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present drawings or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present drawings. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0030] Figure 1 A schematic structural diagram of the driving portion of the lifting frame provided by the present invention; Figure 2 A schematic diagram of the overall structure of the lifting frame provided by the present invention; Figure 3 This is an exploded view of the structure of the lifting frame provided by the present invention.

[0031] In the figure: 1. Cable reel; 2. Manual drive mechanism; 21. First transmission shaft; 22. Manual drive component; 23. First self-locking ratchet; 3. Electric drive mechanism; 31. Second transmission shaft; 32. Electric drive component; 33. Second self-locking ratchet; 4. First clutch; 41. First active disk; 42. First driven disk; 5. Second clutch; 51. Second active disk; 52. Second driven disk; 6. Operating assembly; 61. Shift group; 611. Shift piece; 612. Connecting rod; 613. Limit block; 62. Shift rod; 7. Frame; 8. Traction rope; 9. Reversing wheel; 10. Front end of counterweight. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present invention.

[0033] Obviously, the drawings described below are merely examples or embodiments of the present invention. Those skilled in the art can apply the present invention to other similar scenarios based on these drawings without inventive effort. Furthermore, it is understood that while the effort involved in such a development process may be complex and lengthy, for those skilled in the art related to the disclosure of the present invention, any design, manufacturing, or production changes based on the technical content disclosed in the present invention are merely conventional technical means and should not be construed as an inadequacy of the disclosure of the present invention.

[0034] However, unnecessary detailed descriptions may be omitted. For example, detailed descriptions of well-known matters and repetitive descriptions of substantially identical structures may be omitted. This is to avoid unnecessary redundancy in the following description and to facilitate understanding by those skilled in the art. Furthermore, the drawings and the following description are provided to facilitate a thorough understanding of the present invention by those skilled in the art and are not intended to limit the subject matter recited in the claims.

[0035] See also Figure 1-Figure 3As shown, the lifting stand for assisting surgical sterilization operations in an embodiment of the present invention includes a cable reel 1, a manual drive mechanism 2, and an electric drive mechanism 3. A first clutch 4 is provided between the manual drive mechanism 2 and the cable reel 1. A second clutch 5 is provided between the electric drive mechanism 3 and the cable reel 1.

[0036] The cable reel 1 serves as the power output terminal, and its rotational motion directly controls the retraction and release of the traction rope 8 to realize the lifting and lowering of the lower limbs. The hand-driven mechanism 2 provides a manual operation mode. When the first clutch 4 is engaged, the human torque is transmitted to the cable reel 1 through the clutch. When separated, the hand-driven mechanism 2 is decoupled from the cable reel 1 to avoid interference with the electric mode. The electric drive mechanism 3 provides an electric operation mode. When the second clutch 5 is engaged, the motor torque drives the cable reel 1. When separated, the motor idling resistance is not transmitted to the manual system. The electric mode provides labor-saving lifting, and the manual mode serves as an emergency backup for power outages. The two drive systems achieve zero power interference through independent clutches.

[0037] The cable reel 1, the manual drive mechanism 2 and the electric drive mechanism 3 mainly serve as the driving part of the lifting frame provided by the present invention. In addition, the lifting frame also includes a frame body 7, a traction rope 8, a reversing wheel 9 and a counterweight front end 10. The driving part is installed on the frame body 7 as a whole, and the outside is assembled and protected by a shell. A plurality of reversing wheels 9 are assembled on the frame body 7. One end of the traction rope 8 cooperates with the cable reel 1, and completes the winding and releasing actions under the rotation of the cable reel 1. The other end of the traction rope 8 passes through each reversing wheel 9 for reversing and cooperates with the counterweight front end 10. The counterweight front end 10 is used to place the patient's limbs to pull the limbs up or down. A counterweight block can be set at the counterweight front end 10, so that the lifting and lowering operations can be completed smoothly even when the counterweight front end 10 is unloaded, to prevent the traction rope 8 from detaching from the reversing wheel 9 after relaxation.

[0038] In one embodiment, the first clutch 4 includes a first active disc 41 and a first driven disc 42. The first active disc 41 receives input torque from the manual drive mechanism 2. The first driven disc 42 is fixed to the end of the cable reel 1 and is linked to the first active disc 41 through end face tooth engagement or friction plate compression. The first active disc 41 engages or disengages with the first driven disc 42 through axial sliding.

[0039] The manual drive mechanism 2 includes a first transmission shaft 21, a manual drive member 22, and a first self-locking ratchet 23. In addition to being a shaft structure for transmitting torque, the manual drive member 22 can also be used to input torque by rotating a handle or handwheel. The first transmission shaft 21 is splined to a first active disk 41, which transmits the rotational motion of the manual drive member 22 to the first active disk 41 via the splines. The first active disk 41 slides axially on the first transmission shaft 21 but is locked circumferentially, ensuring torque transmission.

[0040] The first self-locking ratchet 23 comprises a ratchet disc and a pawl. The ratchet disc is clamped between the first transmission shaft 21 and the first driving disc 41. The ratchet teeth on the ratchet disc and the pawl can only be locked in one direction. A torsion spring is provided on the pawl to ensure that the pawl is promptly reset and locked between adjacent teeth each time it is lifted by the ratchet teeth. The first self-locking ratchet 23 only allows the first transmission shaft 21 to rotate in one direction. During reverse rotation, the pawl engages the first transmission shaft 21, achieving gravity self-locking when the hand is released.

[0041] The hand-driven part 22 and the first transmission shaft 21 are matched with each other through a threaded pair, and the first self-locking ratchet 23 contacts the end surfaces of the hand-driven part 22 and the first transmission shaft 21 respectively.

[0042] In a specific embodiment, when the hand-driven part 22 and the first transmission shaft 21 are in a tightened threaded state, the hand-driven part 22 and the first transmission shaft 21 move relative to each other to squeeze the first self-locking ratchet 23. The first self-locking ratchet 23 is compressed to generate a pre-locking force. The rotational freedom of the first transmission shaft 21 is restricted. Under continued rotation, the torque is transmitted to the first active disk 41 through the first transmission shaft 21, and drives the winding reel 1 to lift the lower limbs.

[0043] In one embodiment, when the hand-driven member 22 and the first transmission shaft 21 are in a threaded state, the hand-driven member 22 slightly moves outward due to the thread, and the first self-locking ratchet 23 is in a relaxed state, thereby allowing the first transmission shaft 21 to rotate freely. The gravity of the lower limb or the counterweight at the front end of the counterweight 10 drags the cable reel 1 in a reverse direction, forcing the first transmission shaft 21 to rotate with it, forcing the first transmission shaft 21 to re-thread and lock with the hand-driven member 22. As the hand-driven member 22 continues to rotate, the cable reel 1 continues to release the traction rope 8.

[0044] This structure solves the problem of traditional self-locking structures that require manual unlocking of the pawl to complete the descent operation, and realizes the intuitive operation of reverse and descent. The designed thread lead can control the descent speed and avoid gravity-accelerated fall.

[0045] In one embodiment, the second clutch 5 includes a second active disk 51 and a second driven disk 52. The second active disk 51 receives the motor input torque from the electric drive mechanism 3. The second driven disk 52 is fixed to the other end of the cable reel 1 to form a clutch pair with the second active disk 51, and is linked to the second active disk 51 through end face tooth engagement or friction plate compression. The second active disk 51 is connected or separated with the second driven disk 52 through axial sliding to realize the on-off control of the electric power chain. In the separated state, the load of the cable reel 1 is not transferred to the motor rotor, which extends the service life of the motor and avoids interference with the motor back electromotive force during manual operation.

[0046] The electric drive mechanism 3 includes a second transmission shaft 31, an electric drive component 32, and a second self-locking ratchet 33. The electric drive component 32 can be driven by a drive motor. The second transmission shaft 31 connects the motor output to the second active disk 51. A spline connection exists between the second transmission shaft 31 and the second active disk 51. The second transmission shaft 31 transmits the rotational motion of the electric drive component 32 to the second active disk 51 via the spline. The second active disk 51 slides axially on the second transmission shaft 31 but is locked circumferentially, ensuring torque transmission.

[0047] Similarly, the second self-locking ratchet 33 comprises a ratchet disc and a pawl. The ratchet disc is clamped between the second transmission shaft 31 and the second driving disc 51. The ratchet teeth on the ratchet disc and the pawl can only be locked in one direction. A torsion spring is provided on the pawl to ensure that the pawl is promptly reset and locked between adjacent teeth each time it is lifted by the ratchet teeth. The second self-locking ratchet 33 only allows the second transmission shaft 31 to rotate in one direction. During reverse rotation, the pawl engages the second transmission shaft 31, achieving gravity self-locking when the motor power stops.

[0048] The output shaft of the electric drive component 32 is matched with the second transmission shaft 31 through a threaded pair, and the second self-locking ratchet 33 is in contact with the end faces of the electric drive component 32 and the second transmission shaft 31 respectively.

[0049] In a specific embodiment, when the electric drive component 32 and the second transmission shaft 31 are in a tightened threaded state, the electric drive component 32 and the second transmission shaft 31 move relative to each other to squeeze the second self-locking ratchet 33, and the second self-locking ratchet 33 is pressed to generate a pre-locking force. The rotational freedom of the second transmission shaft 31 is restricted, and the rotation continues. The torque is transmitted to the second active disk 51 through the second transmission shaft 31, and drives the winding reel 1 to lift the lower limbs.

[0050] In one embodiment, when the electric drive unit 32 and the second transmission shaft 31 are in a threaded state, the output shaft of the electric drive unit 32 moves slightly outward due to the thread, the second self-locking ratchet 33 is in a relaxed state, and the second transmission shaft 31 is in a free rotation state. The gravity of the lower limb or the counterweight block of the counterweight front end 10 drags the cable reel 1 to rotate reversely, forcing the second transmission shaft 31 to rotate with it, forcing the second transmission shaft 31 to re-thread and lock with the electric drive unit 32. As the electric drive unit 32 continues to rotate, the cable reel 1 continues to release the traction rope 8.

[0051] In a specific embodiment, an elastic coupling is provided on the output shaft of the electric drive component 32 to provide a basis for slight axial movement of the output shaft of the electric drive component 32 .

[0052] Similarly, this structure solves the problem of traditional self-locking structures that require manual unlocking of the pawl to complete the descent operation, achieving automatic descent upon reversal. The designed thread lead can control the descent speed and avoid gravity-accelerated falls.

[0053] The lifting frame also includes a control assembly 6, which synchronously controls the clutching action of the first clutch 4 and the second clutch 5, and the clutching action of the first clutch 4 is opposite to that of the second clutch 5. The two clutches are physically forced to not be engaged at the same time, eliminating the mechanism interference caused by dual power conflict.

[0054] Specifically, the control assembly 6 includes two shift groups 61 and a shift lever 62. The shift groups 61 have hinge points that mate with the lift frame housing. The shift lever 62 is used to control the two shift groups 61 to rotate in the same direction about the hinge points. When the shift lever 62 is moved toward one end, the two shift groups 61 rotate in the same direction about the hinge points. A single operation of the shift lever 62 can achieve a one-time engagement and one-time disengagement of the first clutch 4 and the second clutch 5.

[0055] In one embodiment, the pushing action of the shift assembly 61 acts on the first driving disk 41 and the second driving disk 51 respectively, forcing the first driving disk 41 to slide on the first transmission shaft 21 and forcing the second driving disk 51 to slide on the second transmission shaft 31 .

[0056] Furthermore, the paddle group 61 includes two paddles 611 and a connecting rod 612. The two paddles 611 are respectively arranged at both ends of the connecting rod 612, and the paddles 611 are hinged to the connecting rod 612. Two relatively arranged limit blocks 613 are provided on the paddle 611, and the opposite surfaces of the two limit blocks 613 are arc-shaped structures.

[0057] The first and second active disks 41 and 51 are positioned between two corresponding paddles 611, with their edges clamped between two corresponding stoppers 613. When the lever 62 is moved toward one end, each paddle 611 rotates in the same direction about its hinge point. The stoppers 613 of each paddle 611 push the first and second active disks 41 and 51 into axial sliding motion. The symmetrical arrangement of the two paddles 611 applies balanced thrust to each active disk, preventing them from deflecting or getting stuck. The curved surface of the stoppers 613 guides the active disks along the curved surface, ensuring a smooth and impact-free engagement process.

[0058] Furthermore, the lever 62 is provided with a locking mechanism to lock the lever 62 in place, preventing the lever assembly 61 from moving during actuation. This locking mechanism can be a magnetic component that attaches the end of the lever 62 to a corresponding magnetic component to limit its movement, or a mechanical snap-fit mechanism that locks the lever 62 to prevent its movement. The locking mechanism can be implemented using existing mechanisms, and the detailed structure will not be detailed here.

[0059] Furthermore, a spring is disposed between the first driving disk 41 and the first transmission shaft 21. This spring tends to constantly press the first driving disk 41 toward the first driven disk 42, preventing axial movement of the first driving disk 41 during the rotation of the first driving disk 41 by the first transmission shaft 21 after the first driving disk 41 and the first driven disk 42 are engaged, thereby affecting torque transmission efficiency. Similarly, a spring is disposed between the second driving disk 51 and the second transmission shaft 31. This spring tends to constantly press the second driving disk 51 toward the second driven disk 52, preventing axial movement of the second driving disk 41 on the second transmission shaft 31 during rotation.

[0060] In general, the hinge point on the paddle 611 forms a lever fulcrum, the thrust of the paddle rod 62 is converted into the rotational force of the paddle 611, the connecting rod 612 ensures the synchronous movement of the two paddles 611, and the arc surface of the limit block 613 accurately pushes the first active disk 41 and the second active disk 51 to slide axially.

[0061] It should be noted that the present invention is not limited to the above-mentioned embodiments. The above-mentioned embodiments are merely examples, and any embodiments having substantially the same structure and effect as the technical concept within the scope of the technical solution of the present invention are all included in the technical scope of the present invention. In addition, without departing from the scope of the present invention, other embodiments that can be conceived by those skilled in the art and that combine some of the constituent elements in the embodiments are also included in the scope of the present invention.

Claims

1. A lifting stand for assisting surgical sterilization operations, characterized in that: include: Cable reel (1); A hand-driven mechanism (2) having a first clutch (4) disposed between the hand-driven mechanism and the cable reel (1); The electric drive mechanism (3) is provided with a second clutch (5) between the electric drive mechanism and the cable reel (1).

2. A lifting stand for assisting surgical sterilization operations according to claim 1, characterized in that: The first clutch (4) comprises a first active disk (41) and a first driven disk (42), the hand-driven mechanism (2) is used to transmit torque to the first active disk (41), and the first driven disk (42) is arranged at one end of the winding reel (1).

3. A lifting stand for assisting surgical sterilization operations according to claim 2, characterized in that: The hand-driven mechanism (2) comprises a first transmission shaft (21), a hand-driven component (22), and a first self-locking ratchet (23); the first active disk (41) has a sliding degree of freedom on the first transmission shaft (21); the hand-driven component (22) transmits torque to the first active disk (41) via the first transmission shaft (21); and the first self-locking ratchet (23) is clamped between the hand-driven component (22) and the first transmission shaft (21).

4. A lifting stand for assisting surgical sterilization operations according to claim 3, characterized in that: The hand-driven component (22) is threadedly connected to the first transmission shaft (21), and the first self-locking ratchet (23) is in contact with the end faces of the hand-driven component (22) and the first transmission shaft (21), respectively.

5. The lifting stand for assisting surgical sterilization according to claim 1, characterized in that: The second clutch (5) comprises a second active disc (51) and a second driven disc (52), the electric drive mechanism (3) is used to transmit torque to the second active disc (51), and the second driven disc (52) is arranged at one end of the winding disc (1).

6. A lifting stand for assisting surgical sterilization operations according to claim 5, characterized in that: The electric drive mechanism (3) comprises a second transmission shaft (31), an electric drive component (32), and a second self-locking ratchet (33); the second active disk (51) has a sliding degree of freedom on the second transmission shaft (31); the electric drive component (32) transmits torque to the second active disk (51) via the second transmission shaft (31); and the second self-locking ratchet (33) is clamped between the electric drive component (32) and the second transmission shaft (31).

7. A lifting stand for assisting surgical sterilization operations according to claim 6, characterized in that: The electric drive component (32) is threadedly connected to the second transmission shaft (31), and the second self-locking ratchet (33) is in contact with the end faces of the electric drive component (32) and the second transmission shaft (31), respectively.

8. The lifting stand for assisting surgical sterilization according to claim 1, characterized in that: The invention also includes a control component (6), wherein the control component (6) synchronously controls the clutching actions of the first clutch (4) and the second clutch (5), and the clutching actions of the first clutch (4) and the second clutch (5) are opposite.

9. A lifting stand for assisting surgical sterilization operations according to claim 8, characterized in that: The operating assembly (6) comprises two shifting groups (61) and a shifting rod (62), wherein the shifting group (61) has a hinge point that cooperates with the lifting frame shell, and the shifting rod (62) is used to respectively control the two shifting groups (61) to rotate in the same direction around the hinge point.

10. A lifting stand for assisting surgical sterilization operations according to claim 9, characterized in that: The paddle group (61) comprises two paddles (611) and a connecting rod (612). The two paddles (611) are respectively arranged at two ends of the connecting rod (612). Two oppositely arranged limiting blocks (613) are provided on the paddles (611). The opposite surfaces of the two limiting blocks (613) are in an arc-shaped structure.

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