Medical surgical instrument cleaning and disinfecting equipment

By introducing bubble stirring and vacuum technology into the cleaning and disinfection equipment of medical surgical instruments, the problems of microflow of cleaning liquid and uneven penetration of high-pressure steam in existing equipment have been solved, and the efficiency of cleaning, decontamination and disinfection and sterilization have been significantly improved.

CN119588677AInactive Publication Date: 2025-03-11SHENZHEN KANGJIER BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202411721678.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-03-11
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During the ultrasonic cleaning and high-pressure steam sterilization process of existing medical surgical instruments, the microflow of the cleaning liquid leads to low cleaning and decontamination efficiency, and the uniform penetration of high-pressure steam is affected by the air, resulting in poor disinfection and sterilization effect.

Method used

A medical surgical instrument cleaning and disinfection equipment was designed, and the cleaning liquid was assisted by bubble stirring mechanism for macro movement. The air inside the disinfection chamber was reduced through the vacuum mechanism, thereby improving the cleaning and decontamination efficiency and disinfection and sterilization effect.

Benefits of technology

Through bubble stirring and vacuuming technology, the cleaning and decontamination efficiency and disinfection and sterilization effect of medical surgical instruments are significantly improved, and the cleaning and disinfection ability of surgical instruments is enhanced.

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Abstract

The invention relates to the technical field of medical instrument cleaning and disinfection, and discloses medical surgical instrument cleaning and disinfection equipment which comprises an equipment seat body, a placement basket, an ultrasonic cleaning mechanism, a clean water flushing mechanism, a high-pressure steam disinfection mechanism and a control display, the ultrasonic cleaning mechanism, the clean water flushing mechanism and the high-pressure steam disinfection mechanism respectively comprise a cleaning bin body, a flushing bin body and a disinfection bin body, a bubble stirring mechanism is arranged in the cleaning bin body, the bubble stirring mechanism comprises an air hole disc which is axially symmetrically and fixedly connected to the inner bottom of the cleaning bin body, and a vacuumizing mechanism is arranged in the disinfection bin body. Intermittent bubble stirring of cleaning liquid in the cleaning bin body can be achieved, the cleaning liquid can be assisted in macroscopic movement so as to improve the cleaning and decontamination efficiency of surgical instruments, meanwhile, air in the disinfection bin body is reduced, the working time of a vacuumizing pump is shortened, and the working efficiency is improved. Therefore, high-temperature steam can be assisted to uniformly permeate so as to improve the disinfection and sterilization effect.
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Description

Technical Field

[0001] The present invention relates to the technical field of cleaning and disinfecting medical instruments, and in particular to a cleaning and disinfecting device for medical surgical instruments. Background Art

[0002] The cleaning and disinfection process of medical surgical instruments is a strict and systematic process, which aims to ensure the sterility of medical surgical instruments before use, thereby ensuring the safety of patients and the quality of medical care. The complete cleaning and disinfection process of medical surgical instruments mainly includes pretreatment, classification, cleaning, rinsing, disinfection, drying, packaging, labeling, storage and other steps. Among them, the cleaning step mostly adopts ultrasonic cleaning method, which can penetrate into the inside of medical surgical instruments and hard-to-reach parts and effectively clean dirt. The disinfection step mostly adopts high-pressure steam disinfection method, which can kill all microorganisms on medical surgical instruments through high-pressure and high-temperature steam, and it is suitable for most metal medical surgical instruments.

[0003] After searching, the Chinese invention patent with publication number CN108404145A discloses a disinfection and sterilization device suitable for general surgical instruments, including a shell, the interior of which is sequentially equipped with a preliminary cleaning device, an ultrasonic cleaning device, a high-pressure steam sterilization device and a light sterilization device from top to bottom, a number of lighting lamps are installed on the inner wall of the shell, and a flushing device is also provided between the ultrasonic cleaning device and the high-pressure steam sterilization device. Compared with the prior art, the Chinese invention patent with publication number CN108404145A is safer for cleaning and sterilizing surgical instruments, and has a lower damage rate for surgical instruments.

[0004] However, in the process of cleaning and decontaminating medical surgical instruments by using an ultrasonic cleaning device, the cavitation effect generated by the microscopic flow of the cleaning liquid inside the ultrasonic cleaning chamber is limited, resulting in a low cleaning and decontamination efficiency. In addition, in the process of disinfecting and sterilizing medical surgical instruments by using a high-pressure steam sterilization device, the presence of air inside the high-pressure steam sterilization chamber will affect the uniform penetration of the high-temperature steam inside, resulting in a poor disinfection and sterilization effect. Therefore, there is a need for a medical surgical instrument cleaning and disinfection device that can assist the cleaning liquid in macroscopic movement to improve the cleaning and decontamination efficiency, and can assist the high-temperature steam in uniform penetration to improve the disinfection and sterilization effect. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art that the cavitation effect produced by the microscopic flow of cleaning liquid inside the ultrasonic cleaning chamber is limited and the presence of air inside the high-pressure steam sterilization chamber affects the uniform penetration of high-temperature steam, and to propose a medical surgical instrument cleaning and disinfection equipment.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A medical surgical instrument cleaning and disinfection device comprises an equipment base, a placement basket, an ultrasonic cleaning mechanism, a clean water flushing mechanism, a high-pressure steam disinfection mechanism and a control display, wherein the upper inner portion of the equipment base is provided with a moving mechanism for moving the placement basket left and right, the moving mechanism comprises a moving block slidably connected to the upper inner portion of the equipment base, an electro-hydraulic push rod group is installed on the outer portion of the moving block, an output end of the electro-hydraulic push rod group is fixedly connected to a sealing chamber cover connected to the placement basket, the ultrasonic cleaning mechanism, the clean water flushing mechanism and the high-pressure steam disinfection mechanism respectively comprise a cleaning chamber body, a flushing chamber body and a disinfection chamber body fixedly connected to the lower inner portion of the equipment base; a bubble stirring mechanism for stirring is provided inside the cleaning chamber body, the bubble stirring mechanism comprises an air hole disk axially symmetrically fixedly connected to the bottom of the cleaning chamber body; a vacuuming mechanism for vacuuming is provided inside the disinfection chamber body, the vacuuming mechanism comprises an exhaust branch pipe fixedly connected to the bottom of the cleaning chamber body and axially symmetrically distributed, a vacuum pump and a pressure discharge pipe installed outside the cleaning chamber body.

[0008] The above technical solution further includes:

[0009] A power generator is installed at the outer bottom of the cleaning bin, an ultrasonic transducer connected to the power generator is installed at the inner bottom of the cleaning bin, a heating coil is also installed at the inner bottom of the cleaning bin, a cleaning liquid temperature sensor is installed on the inner side wall of the cleaning bin, the control display is connected to the power generator and the heating coil and a cleaning timing module is arranged inside; when the placement basket drives the surgical instruments inside the basket to enter the cleaning bin, the power generator and the ultrasonic transducer are started so that the cleaning liquid inside the cleaning bin can perform ultrasonic cleaning on the immersed surgical instruments;

[0010] The outer side of the flushing bin body is provided with through holes symmetrically, the inner wall of the flushing bin body is connected with a self-resetting water storage pipe symmetrically in rotation, the outer side of the self-resetting water storage pipe is evenly provided with cleaning nozzles, the outer side of the self-resetting water storage pipe is installed with a magnet block, the inner wall of the flushing bin body is installed with an electromagnet symmetrically, the electromagnet can adsorb the magnet block when energized, the outer side of the flushing bin body is installed with a water storage ring bin, the top of the water storage ring bin is installed with a water pump symmetrically, the water outlet of the water pump is installed with a connecting hose passing through the through hole and connected with the self-resetting water storage pipe, the control display is connected with the magnet block and the water pump and is provided with a flushing timing module inside; the placement basket drives the surgical instruments inside it to enter the interior of the disinfection bin body, and when the axially symmetrical self-resetting water storage pipe rotates to a horizontal state, the water pump is started to realize the flushing of the surgical instruments to remove the cleaning fluid and residual dirt on the surgical instruments;

[0011] A steam generator is installed at the bottom of the disinfection bin, and a steam temperature sensor and a pressure sensor are installed on the inner wall of the disinfection bin. The control display is connected to the steam generator and is internally provided with a disinfection timing module; when the placement basket drives the surgical instruments inside it into the disinfection bin, the steam generator starts to introduce high-temperature steam into the disinfection bin to achieve disinfection and sterilization of the surgical instruments inside the disinfection bin.

[0012] The moving mechanism also includes a driving motor A installed on the outside of the equipment base, the output end of the driving motor A extends to the inside of the equipment base and is fixedly connected to a rotating screw, the moving block is threadedly connected to the outside of the rotating screw, the control display is connected to the driving motor A and is internally provided with a precise positioning module; the driving motor A can drive the rotating screw to rotate through the precise positioning module, so that the moving block drives the sealing bin cover and the placement basket to move precisely to the top of the corresponding bin body.

[0013] The outside of the moving block is fixedly connected to the fixed end of the electro-hydraulic push rod group through a mounting frame, the middle part of the sealing chamber cover is rotatably connected to a middle rotating rod fixedly connected to the middle part of the placing basket, the inner top wall of the sealing chamber cover is fixedly connected to an arc-shaped slide rail, and the inner axis of the arc-shaped slide rail is symmetrically slidably connected to an edge rotating rod fixedly connected to the edge of the placing basket; the placing basket is rotatably connected to the bottom of the sealing chamber cover through the middle rotating rod and the edge rotating rod to facilitate loading and unloading of surgical instruments.

[0014] The bubble stirring mechanism also includes an air-increasing main pipe fixedly connected to the bottom of the cleaning bin body, a moving piston rod is arranged inside the air-increasing main pipe, an air-increasing branch pipe fixedly connected to the bottom of the air hole disk is symmetrically fixedly connected to the outside of the air-increasing main pipe, a self-resetting one-way valve plate capable of deflecting upward is arranged on the top of the air hole disk, a one-way exhaust pipe is fixedly connected between the air-increasing main pipe and the cleaning bin body, one-way valve bodies are arranged at both ends of the one-way exhaust pipe, and a moving part A capable of driving it to reciprocate left and right is arranged on the outside of the moving piston rod; when the moving piston rod moves to the left, the gas inside the air-increasing main pipe can be squeezed into the inside of the air hole disk through the air-increasing branch pipe, thereby forming bubble stirring in the cleaning liquid.

[0015] The moving part A comprises a horizontal return spring and a horizontal sawtooth group fixedly connected to the moving piston rod, and one end of the horizontal return spring away from the moving piston rod is fixedly connected to the inside of the air-increasing main pipe; the moving part A also comprises a driving motor B installed under the cleaning bin body and connected to the control display, and the output end of the driving motor B is fixedly connected to a semi-driving gear that can drive the moving piston rod to move through the horizontal sawtooth group;

[0016] When the driving motor B starts to drive the semi-driving gear to rotate continuously clockwise, it can drive the moving piston rod to reciprocate left and right through the horizontal sawtooth group and the horizontal return spring, thereby achieving intermittent stirring of the cleaning liquid inside the cleaning bin.

[0017] The vacuum pumping mechanism also includes an exhaust pipe fixedly connected to the bottom of the disinfection chamber body, a moving piston block is arranged inside the exhaust pipe, the exhaust pipe is connected to the exhaust branch pipe, and the ends of the exhaust branch pipe and the pressure relief pipe are both equipped with solenoid valves connected to the control display, and the outside of the moving piston block is provided with a moving part B that can drive it to perform a single left and right movement; when the solenoid valve at the end of the exhaust branch pipe is opened and the moving piston block moves to the left, the air inside the disinfection chamber body can be sucked into the exhaust pipe through the exhaust branch pipe, thereby reducing the air inside the disinfection chamber body.

[0018] The moving part B includes a connecting rope fixedly connected to the moving piston block, a guide wheel installed at the end of the exhaust main pipe, and a winding wheel installed below the flushing bin body, and an end of the connecting rope away from the moving piston block passes around the guide wheel and is wound around the outside of the winding wheel;

[0019] The moving part B also includes a horizontal fixed pipe fixedly connected to the pressure relief pipe, the outside of the horizontal fixed pipe is slidably connected to a horizontal sliding pipe close to the moving piston block, and the end of the horizontal sliding pipe is fixedly connected to a steam impact ring;

[0020] The moving part B also includes a one-way air release pipe fixedly connected to the air extraction main pipe, and a one-way valve body is provided at the end of the one-way air release pipe;

[0021] When the solenoid valve at the end of the pressure relief pipe is opened to discharge pressure and exhaust, high-pressure and high-temperature gas enters the interior of the horizontal fixed pipe and the horizontal sliding pipe to push the moving piston block to reset to the right.

[0022] A force storage member for storing force on the winding wheel is arranged below the flushing bin body, and the force storage member includes a self-resetting single-biased sawtooth group fixedly connected to the outside of the moving piston rod, and the self-resetting single-biased sawtooth group can be deflected in a direction away from the horizontal sawtooth group;

[0023] The force storage member also includes a meshing gear rotatably connected to the bottom of the flushing bin body, the moving piston rod can drive the meshing gear to rotate counterclockwise through the self-resetting single-biased sawtooth group, and the outer side of the meshing gear is fixedly connected to a force storage torsion spring through a connecting shaft;

[0024] When the moving piston rod moves to the right, the self-resetting single-biased sawtooth group drives the meshing gear to rotate counterclockwise to store force, and the solenoid valve at the end of the air extraction branch pipe is closed to maintain the stored force state of the stored force torsion spring;

[0025] The force storage member also includes a rotating disk rotatably connected to the bottom of the flushing bin body, the outer side of the meshing gear is fixedly connected to a rotating cylinder through a connecting shaft, the rotating disk is rotatably connected to the inside of the rotating cylinder, the outer side of the rotating disk is axially symmetrically provided with a groove, the inner side of the groove is rotatably connected with a self-resetting one-way driving pawl, the inner side of the rotating cylinder is axially symmetrically provided with a one-way driving ratchet groove, the rotating cylinder can drive the rotating disk to rotate clockwise through the one-way driving ratchet groove and the self-resetting one-way driving ratchet pawl, and a synchronous pulley is provided between the rotating disk and the winding wheel;

[0026] When the solenoid valve at the end of the exhaust branch pipe is opened, the force storage torsion spring in the force storage state immediately drives the meshing gear to rotate clockwise to reset, so that the winding wheel rotates clockwise to tighten the connecting rope, thereby realizing the extraction of air inside the disinfection chamber.

[0027] The present invention has the following beneficial effects:

[0028] 1. When the driving motor B drives the semi-driving gear to rotate continuously clockwise, the horizontal sawtooth group and the horizontal return spring can drive the moving piston rod to reciprocate left and right to achieve intermittent bubble stirring of the cleaning liquid inside the cleaning bin body, that is, the present invention can assist the cleaning liquid to move macroscopically to improve the cleaning and decontamination efficiency of surgical instruments.

[0029] 2. In the process of realizing intermittent bubble stirring of the cleaning liquid inside the cleaning bin, the present invention can continuously store power on the winding wheel, so that after the surgical instruments placed in the basket enter the interior of the disinfection bin, the exhaust branch pipe can suck the air inside the disinfection bin into the exhaust main pipe to reduce the air inside the disinfection bin, thereby shortening the working time of the vacuum pump, that is, the present invention can assist the high-temperature steam to penetrate evenly to improve the disinfection and sterilization effect.

[0030] 3. When the surgical instruments placed in the present invention are exhausted after the disinfection and sterilization operation is completed, the exhausted high-pressure and high-temperature steam can assist the moving piston block to reset to the right to wait for the next vacuum operation. At the same time, the gas exhausted through the one-way exhaust pipe can reduce the pressure and temperature to improve the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall structure of a medical surgical instrument cleaning and disinfection device proposed by the present invention;

[0032] Figure 2 A schematic diagram of the upper structure of a medical surgical instrument cleaning and disinfection device proposed by the present invention;

[0033] Figure 3It is a schematic diagram of the structure of the sealing cover in the present invention;

[0034] Figure 4 A schematic diagram of the lower structure of a medical surgical instrument cleaning and disinfection device proposed by the present invention;

[0035] Figure 5 for Figure 4 A first cross-sectional structural schematic diagram of;

[0036] Figure 6 for Figure 5 A schematic diagram of the structure enlargement in the middle;

[0037] Figure 7 for Figure 5 A magnified schematic diagram of the structure at B in the middle;

[0038] Figure 8 for Figure 4 A second cross-sectional structural schematic diagram of ;

[0039] Fig. 9 for Figure 4 A third cross-sectional structural schematic diagram of ;

[0040] Fig.10 for Fig. 9 A magnified schematic diagram of the structure at C in the middle;

[0041] Fig.11 It is a schematic diagram of the external structure of the rotating drum in the present invention;

[0042] Fig.12 It is a schematic diagram of the internal structure of the rotating drum in the present invention.

[0043] In the figure: 1. Equipment base; 2. Placement basket; 3. Control display; 4. Electro-hydraulic push rod group; 5. Sealing chamber cover; 6. Mounting frame; 7. Middle rotating rod; 8. Arc slide rail; 9. Side rotating rod; 10. Ultrasonic cleaning mechanism; 11. Cleaning chamber body; 12. Power generator; 13. Ultrasonic transducer; 14. Heating ring; 15. Cleaning liquid temperature sensor; 20. Clean water flushing mechanism; 21. Flushing chamber body; 22. Through hole; 23. Self-resetting water storage pipe; 24. Cleaning nozzle; 25. Magnet block; 26. Electromagnet; 27. Water storage ring chamber; 28. Water pump; 29. ​​Connecting hose; 30. High-pressure steam disinfection mechanism; 31. Disinfection chamber body; 32. Steam generator; 33. Steam temperature sensor; 34. Pressure sensor; 40. Moving mechanism; 41. Moving block; 42. Driving motor A; 43. Rotating screw; 50. Bubble stirring mechanism; 51. Air hole disc; 52, air supply main pipe; 53, moving piston rod; 54, air supply branch pipe; 55, self-resetting one-way valve plate; 56, one-way exhaust pipe; 57, moving part A; 570, horizontal return spring; 571, horizontal sawtooth group; 572, drive motor B; 60, vacuum mechanism; 61, air extraction branch pipe; 62, vacuum pump; 63, pressure discharge pipe; 64, air extraction main pipe; 65, moving piston block; 66, solenoid valve; 67, moving part B ; 670, connecting rope; 671, guide wheel; 672, winding wheel; 673, horizontal fixed tube; 674, horizontal sliding tube; 675, one-way air release tube; 77, force storage member; 770, self-resetting single-bias sawtooth group; 771, meshing gear; 772, force storage torsion spring; 773, rotating disk; 774, rotating cylinder; 775, groove; 776, self-resetting one-way driving pawl; 777, one-way driving ratchet groove; 778, synchronous pulley. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] like Figure 1-Figure 12As shown, a medical surgical instrument cleaning and disinfection device proposed by the present invention includes an equipment base 1, a placement basket 2, an ultrasonic cleaning mechanism 10, a clean water flushing mechanism 20, a high-pressure steam disinfection mechanism 30 and a control display 3. The upper inner part of the equipment base 1 is provided with a moving mechanism 40 for moving the placement basket 2 left and right. The moving mechanism 40 includes a moving block 41 slidably connected to the upper inner part of the equipment base 1. The moving mechanism 40 also includes a driving motor A42 installed on the outside of the equipment base 1. The output end of the driving motor A42 extends to the inside of the equipment base 1 and is fixedly connected with a rotating screw 43. The moving block 41 is threadedly connected to the outside of the rotating screw 43. The control display 3 is connected to the driving motor A41 and is provided with a precise positioning module inside. The precise positioning module can make the driving motor A42 drive the rotating screw 43 to rotate, so that the moving block 41 drives the sealing chamber cover 5 and the placement basket 2 to move precisely to the top of the corresponding chamber body;

[0046] An electro-hydraulic push rod group 4 is installed on the outside of the moving block 41. The outside of the moving block 41 is fixedly connected to the fixed end of the electro-hydraulic push rod group 4 through the mounting frame 6. The output end of the electro-hydraulic push rod group 4 is fixedly connected to a sealing chamber cover 5 connected to the placement basket 2. By controlling the display 3 to start the electro-hydraulic push rod group 4, the sealing chamber cover 5 and the placement basket 2 can be driven to move up and down. The middle part of the sealing chamber cover 5 is rotatably connected to a middle rotating rod 7 fixedly connected to the middle part of the placement basket 2. The inner top wall of the sealing chamber cover 5 is fixedly connected to an arc-shaped slide rail 8. The inner axis of the arc-shaped slide rail 8 is symmetrically slidably connected to an edge rotating rod 9 fixedly connected to the edge of the placement basket 2. That is, the placement basket 2 is rotatably connected to the bottom of the sealing chamber cover 5 through the middle rotating rod 7 and the edge rotating rod 9, so as to facilitate loading and unloading of surgical instruments.

[0047] The ultrasonic cleaning mechanism 10, the clean water flushing mechanism 20 and the high-pressure steam sterilizing mechanism 30 respectively include a cleaning chamber 11, a flushing chamber 21 and a sterilizing chamber 31 fixedly connected to the lower part of the equipment base 1. A power generator 12 is installed at the outer bottom of the cleaning chamber 11, and an ultrasonic transducer 13 connected to the power generator 12 is installed at the inner bottom of the cleaning chamber 11. When the placement basket 2 drives the surgical instruments inside it into the cleaning chamber 11, the power generator 12 and the ultrasonic transducer 13 are started so that the cleaning liquid inside the cleaning chamber 11 can perform ultrasonic cleaning on the immersed surgical instruments. A heating coil 14 is also installed at the inner bottom of the cleaning chamber 11, and a cleaning liquid temperature sensor 15 is installed on the inner side wall of the cleaning chamber 11. The control display 3 is connected to the power generator 12 and the heating coil 14 and is provided with a cleaning timing module inside. The working power of the power generator 12 and the working temperature of the heating coil 14 can be controlled by the control display 3 to control the power and temperature of ultrasonic cleaning inside the cleaning chamber 11.

[0048] The flushing bin body 21 is provided with a through hole 22 symmetrically on the outside, and the inner wall of the flushing bin body 21 is connected with a self-resetting water storage pipe 23 symmetrically on the inside, and a cleaning nozzle 24 is evenly arranged on the outside of the self-resetting water storage pipe 23. A magnet block 25 is installed on the outside of the self-resetting water storage pipe 23, and an electromagnet 26 is installed symmetrically on the inner wall of the flushing bin body 21. The electromagnet 26 can absorb the magnet block 25 when it is energized. When the electromagnet 26 is energized to absorb the magnet block 25, the self-resetting water storage pipe 23 can be rotated inward by 90° to a horizontal state. A water storage ring bin 27, a water pump 28 is axially symmetrically installed on the top of the water storage ring bin 27, a connecting hose 29 passing through the through hole 22 and connected to the self-resetting water storage pipe 23 is installed at the water outlet of the water pump 28, the control display 3 is connected to the magnet block 25 and the water pump 28 and a flushing timing module is arranged inside, the placement basket 2 drives the surgical instruments inside it to enter the interior of the disinfection bin body 31, and when the axially symmetrical self-resetting water storage pipe 23 rotates to a horizontal state, the water pump 28 is started to flush the surgical instruments to remove the cleaning fluid and residual dirt on the surgical instruments;

[0049] A steam generator 32 is installed at the bottom of the disinfection bin 31, and a steam temperature sensor 33 and a pressure sensor 34 are installed on the inner wall of the disinfection bin 31. The control display 3 is connected to the steam generator 32 and a disinfection timing module is arranged inside. When the placement basket 2 drives the surgical instruments inside it into the disinfection bin 31, the steam generator 32 starts to pass high-pressure and high-temperature steam into the disinfection bin 31 to achieve disinfection and sterilization of the surgical instruments inside the disinfection bin 31.

[0050] The remaining specific structures and connection methods of the ultrasonic cleaning mechanism 10, the water washing mechanism 20, the high-pressure steam sterilization mechanism 30 and the control display 3 all adopt the existing technology, so they are not described in detail in this embodiment;

[0051] The cleaning bin body 11 is provided with a bubble stirring mechanism 50 for stirring, and the bubble stirring mechanism 50 includes an air hole disk 51 which is fixedly connected to the bottom of the cleaning bin body 11 axially symmetrically, and the air holes on the air hole disk 51 have a small diameter, and a self-resetting one-way valve plate 55 which can be deflected upward is provided on the top of the air hole disk 51. The bubble stirring mechanism 50 also includes an air increase main pipe 52 which is fixedly connected to the bottom of the cleaning bin body 11, and a moving piston rod 53 is provided inside the air increase main pipe 52, and the outside of the air increase main pipe 52 is fixedly connected to the bottom of the air hole disk 51 axially symmetrically. The connected air-increasing branch pipe 54, the air-increasing main pipe 52 and the cleaning chamber body 11 are fixedly connected with a one-way exhaust pipe 56, and both ends of the one-way exhaust pipe 56 are provided with a one-way valve body. When the moving piston rod 53 moves to the left, the gas inside the air-increasing main pipe 52 can be squeezed into the inside of the air hole plate 51 through the air-increasing branch pipe 54, so as to form bubble stirring in the cleaning liquid to assist the cleaning liquid to move macroscopically and improve the cleaning and decontamination efficiency. When the moving piston rod 53 moves to the right, the gas in the upper part of the cleaning chamber body 11 can be sucked into the inside of the air-increasing main pipe 52 through the one-way exhaust pipe 56;

[0052] The outside of the moving piston rod 53 is provided with a moving part A57 which can drive it to reciprocate left and right. The moving part A57 includes a horizontal return spring 570 and a horizontal sawtooth group 571 which are fixedly connected to the moving piston rod 53. One end of the horizontal return spring 570 away from the moving piston rod 53 is fixedly connected to the inside of the air-increasing main pipe 52. The moving part A57 also includes a driving motor B572 which is installed below the cleaning bin body 11 and connected to the control display 3. The output end of the driving motor B572 is fixedly connected with a semi-driving gear 573 which can drive the moving piston rod 53 to move through the horizontal sawtooth group 571. When the driving motor B572 is started and drives the semi-driving gear 573 to rotate continuously clockwise, the moving piston rod 53 can be driven to reciprocate left and right through the horizontal sawtooth group 571 and the horizontal return spring 570, thereby realizing intermittent stirring of the cleaning liquid inside the cleaning bin body 11.

[0053] The interior of the disinfection chamber 31 is provided with a vacuum mechanism 60 for vacuuming. The vacuum mechanism 60 includes an air extraction branch pipe 61 fixedly connected to the bottom of the cleaning chamber 11 and axially symmetrically distributed, a vacuum pump 62 and a pressure relief pipe 63 installed outside the cleaning chamber 11. The ends of the air extraction branch pipe 61 and the pressure relief pipe 63 are both installed with an electromagnetic valve 66 connected to the control display 3. When the placement basket 2 drives the surgical instruments inside it into the interior of the disinfection chamber 31, the control display 3 controls the electromagnetic valve 66 at the end of the air extraction branch pipe 61 to open for vacuuming. The interior of the disinfection chamber 31 After the surgical instrument is sterilized, the control display 3 controls the electromagnetic valve 66 at the end of the pressure relief pipe 63 to open to relieve pressure and exhaust gas. The vacuum pumping mechanism 60 also includes an exhaust pipe 64 fixedly connected to the bottom of the sterilization chamber 31. A moving piston block 65 is arranged inside the exhaust pipe 64. The exhaust pipe 64 is connected to the exhaust branch pipe 61. When the electromagnetic valve 66 at the end of the exhaust branch pipe 61 is opened and the moving piston block 65 moves to the left, the air inside the sterilization chamber 31 can be sucked into the exhaust pipe 64 through the exhaust branch pipe 61, thereby reducing the air inside the sterilization chamber 31.

[0054] The outside of the moving piston block 65 is provided with a moving part B67 which can drive it to perform a single left and right movement. The moving part B67 includes a connecting rope 670 fixedly connected to the moving piston block 65, a guide wheel 671 installed at the end of the exhaust pipe 64, and a winding wheel 672 installed under the flushing bin body 21. The end of the connecting rope 670 away from the moving piston block 65 passes around the guide wheel 671 and is wound around the outside of the winding wheel 672. The winding wheel 672 rotates clockwise to tighten the connecting rope 670 and drive the moving piston block 65 to move leftward. The moving part B67 also includes a connecting rope 670 fixedly connected to the pressure relief pipe 63 A horizontal fixed pipe 673 is fixedly connected, and a horizontal sliding pipe 674 close to the moving piston block 65 is slidably connected to the outside of the horizontal fixed pipe 673. A steam impact ring is fixedly connected to the end of the horizontal sliding pipe 674. When the solenoid valve 66 at the end of the pressure relief pipe 63 is opened to discharge pressure and exhaust gas, high-pressure and high-temperature gas enters the interior of the horizontal fixed pipe 673 and the horizontal sliding pipe 674 to push the moving piston block 65 to reset to the right. The moving part B67 also includes a one-way air release pipe 675 fixedly connected to the exhaust main pipe 64, and a one-way valve body is provided at the end of the one-way air release pipe 675.

[0055] A force storage member 77 for storing force on the winding wheel 672 is provided below the flushing bin body 21. The force storage member 77 includes a self-resetting single-biased sawtooth group 770 fixedly connected to the outside of the moving piston rod 53. The self-resetting single-biased sawtooth group 770 can deflect in a direction away from the horizontal sawtooth group 571. The force storage member 77 also includes a meshing gear 771 rotatably connected to the bottom of the flushing bin body 21. The moving piston rod 53 can drive the meshing gear 771 to rotate counterclockwise through the self-resetting single-biased sawtooth group 770. The outer side of the meshing gear 771 is fixedly connected with a force storage torsion spring 772 via a connecting shaft, that is, when the moving piston rod 53 moves to the left, the self-resetting single-biased sawtooth group 770 deflects in a direction away from the horizontal sawtooth group 571, and the meshing gear 771 is not affected in this process. When the moving piston rod 53 moves to the right, the self-resetting single-biased sawtooth group 770 drives the meshing gear 771 to rotate counterclockwise to store force, and the electromagnetic valve 66 at the end of the exhaust branch pipe 61 is closed to maintain the stored state of the force storage torsion spring 772.

[0056] The force storage member 77 also includes a rotating disk 773 rotatably connected to the bottom of the flushing bin body 21, the outer side of the meshing gear 771 is fixedly connected to a rotating cylinder 774 through a connecting shaft, the rotating disk 773 is rotatably connected to the inside of the rotating cylinder 774, the outer axis of the rotating disk 773 is symmetrically provided with a groove 775, the inner side of the groove 775 is rotatably connected with a self-resetting one-way driving pawl 776, the inner side of the rotating cylinder 774 is symmetrically provided with a one-way driving ratchet groove 777, and the rotating cylinder 774 can be driven by the one-way driving ratchet groove 777 and the self-resetting one-way driving ratchet pawl. 776 drives the rotating disk 773 to rotate clockwise. A synchronous pulley 778 is arranged between the rotating disk 773 and the winding wheel 672. When the meshing gear 771 drives the rotating cylinder 774 to rotate counterclockwise, the rotating disk 773 is not affected in this process. When the solenoid valve 66 at the end of the exhaust branch pipe 61 is opened, the force storage torsion spring 772 in the force storage state immediately drives the meshing gear 771 to rotate clockwise and reset, so that the winding wheel 672 rotates clockwise to tighten the connecting rope 670, thereby realizing the extraction of air inside the disinfection chamber 31.

[0057] The working principle of this embodiment is as follows: Figure 1 As shown, at this time, the sealing chamber cover 5 and the placement basket 2 are located directly above the cleaning chamber body 11. After the classified medical surgical instruments of the same type are evenly placed on the placement basket 2, the working power of the power generator 12 and the working temperature of the heating coil 14 are controlled by the control display 3, and then the electro-hydraulic push rod group 4 is started to extend by the control display 3, so that the sealing chamber cover 5 covers the top of the cleaning chamber body 11 and the placement basket 2 is immersed in the cleaning liquid inside the cleaning chamber body 11, so that the cleaning liquid inside the cleaning chamber body 11 cleans and removes dirt from the surgical instruments evenly placed in the placement basket 2 at a preset power, temperature, and duration;

[0058] During the ultrasonic cleaning of the surgical instruments evenly placed in the basket 2, the driving motor B572 can be started by controlling the display 3 to drive the semi-driving gear 573 to rotate continuously clockwise. When the semi-driving gear 573 rotates to mesh with the horizontal sawtooth group 571, the horizontal sawtooth group 571 can drive the moving piston rod 53 to move leftward and squeeze the horizontal return spring 570. The moving piston rod 53 moves leftward to squeeze the gas inside the gas-increasing main pipe 52 into the inside of the air hole disk 51 through the gas-increasing branch pipe 54 and open the self-resetting one-way valve plate 55 upward, thereby forming bubble stirring in the cleaning liquid to assist the cleaning liquid in macroscopic movement. When the semi-driving gear 573 rotates to disengage from the horizontal sawtooth group 571, the compressed horizontal return spring 570 drives the moving piston rod 53 to move rightward. When the moving piston rod 53 moves rightward, the self-resetting one-way valve plate 55 is closed, and the gas in the upper part of the cleaning bin body 11 can be sucked into the inside of the gas-increasing main pipe 52 through the one-way exhaust pipe 56.

[0059] That is, when the driving motor B572 drives the semi-driving gear 573 to rotate continuously clockwise, the horizontal sawtooth group 571 and the horizontal return spring 570 can drive the moving piston rod 53 to reciprocate left and right, so as to achieve intermittent bubble stirring of the cleaning liquid inside the cleaning chamber 11, thereby assisting the cleaning liquid to move macroscopically to improve the cleaning and decontamination efficiency of the surgical instrument;

[0060] In the process of the moving piston rod 53 moving to the left, the self-resetting single-biased sawtooth set 770 is blocked by the meshing gear 771 and deflected in the direction away from the horizontal sawtooth set 571, and the meshing gear 771 is not affected by it during this process;

[0061] In the above-mentioned process that the moving piston rod 53 moves to the right, the self-resetting single-biased sawtooth group 770 drives the meshing gear 771 to rotate counterclockwise and twist the force-storing torsion spring 772 to store force. Since the solenoid valve 66 at the end of the air extraction branch pipe 61 is in a closed state, the air pressure between the moving piston block 65 and the air extraction main pipe 64 is constant, so the force-storing torsion spring 772 can continuously maintain the force-storing state.

[0062] In the process of the meshing gear 771 rotating counterclockwise, the rotating cylinder 774 rotates counterclockwise following the meshing gear 771, and the rotating disk 773 is not affected by it during this process;

[0063] After the cleaning and decontamination operation of the surgical instrument is completed, the electro-hydraulic push rod group 4 is shortened by controlling the display 3, so that the sealing chamber cover 5 and the placement basket 2 are reset to the top of the cleaning chamber body 11, and then the driving motor A42 is started by the precise positioning module in the control display 3, so that the rotating screw 43 rotates to drive the moving block 41 to move to the right, so that the moving block 41 drives the sealing chamber cover 5 and the placement basket 2 to move precisely to the top of the flushing chamber body 21, and then the electro-hydraulic push rod group 4 is extended by controlling the display 3 and the electromagnet 26 is energized, so that the sealing chamber cover 5 covers the top of the flushing chamber body 21 and the axisymmetric self-resetting water storage pipe 23 is rotated inward by 90° to a horizontal state, and then the water pump 28 is started to enable the horizontal cleaning nozzle 24 to flush the surgical instruments evenly placed in the placement basket 2 for a fixed period of time to remove the cleaning fluid and residual dirt on the surgical instruments;

[0064] After the flushing operation of the surgical instrument is completed, the sealing chamber cover 5 and the placement basket 2 are reset to the top of the flushing chamber body 21 and moved to the top of the disinfection chamber body 31 by controlling the display 3. After the sealing chamber cover 5 is covered on the top of the disinfection chamber body 31 and the placement basket 2 is located inside the disinfection chamber body 31, the solenoid valve 66 at the end of the exhaust branch pipe 61 is opened by controlling the display 3. After the solenoid valve 66 at the end of the exhaust branch pipe 61 is opened, the force storage torsion spring 772 in the force storage state immediately drives the meshing gear 771 and the rotating cylinder 774 to rotate clockwise and reset, and the clockwise rotating rotating cylinder 774 can drive the rotating disk 773 to rotate clockwise through the one-way driving ratchet groove 777 and the self-resetting one-way driving ratchet pawl 776, and the rotating disk 773 drives the winding through the synchronous pulley 778. The wire wheel 672 rotates clockwise to tighten the connecting rope 670 and pull the piston block 65 to move to the left. When the piston block 65 moves to the left, it can drive the horizontal sliding tube 674 to slide to the outside of the horizontal fixed tube 673. At the same time, the air inside the disinfection chamber 31 can be sucked into the inside of the exhaust main tube 64 through the exhaust branch pipe 61, thereby reducing the air inside the disinfection chamber 31 to shorten the working time of the vacuum pump 62. Then, the solenoid valve 66 at the end of the exhaust branch pipe 61 is closed by controlling the display 3 and the vacuum pump 62 is started. When the vacuum degree inside the disinfection chamber 31 meets the requirements, the vacuum pump 62 can be closed and the steam generator 32 can be started, so that the inside of the disinfection chamber 31 is filled with high-pressure and high-temperature gas that meets the requirements, thereby achieving disinfection and sterilization of surgical instruments inside the disinfection chamber 31.

[0065] That is, in the process of implementing intermittent bubble stirring of the cleaning liquid in the cleaning chamber 11, the winding wheel 672 can be continuously charged, so that after the surgical instruments placed in the basket 2 enter the interior of the disinfection chamber 31, the exhaust branch pipe 61 can suck the air inside the disinfection chamber 31 into the exhaust main pipe 64, so as to reduce the air inside the disinfection chamber 31, thereby shortening the working time of the vacuum pump 62, that is, it can assist the high-temperature steam to penetrate evenly to improve the disinfection and sterilization effect;

[0066] After completing the disinfection and sterilization operation of the surgical instrument, the electromagnetic valve 66 at the end of the pressure relief pipe 63 is opened by controlling the display 3, and the high-pressure and high-temperature gas inside the disinfection chamber 31 immediately enters the horizontal fixed pipe 673 through the pressure relief pipe 63 and impacts the steam impact ring inside the horizontal sliding pipe 674, so that the steam pushes the horizontal sliding pipe 674 to slide and the moving piston block 65 to reset to the right and finally discharged through the one-way vent pipe 675;

[0067] In the above-mentioned process of the moving piston block 65 resetting to the right, the winding wheel 672 rotates counterclockwise to release the connecting rope 670, and the counterclockwise rotating winding wheel 672 can drive the rotating disk 773 to rotate counterclockwise through the synchronous pulley 778, and the counterclockwise rotating rotating disk 773 drives the rotating cylinder 774 and the meshing gear 771 to rotate counterclockwise through the self-resetting one-way driving pawl 776 and the one-way driving ratchet groove 777, and the counterclockwise rotating meshing gear 771 makes the self-resetting single-biased sawtooth group 770 deflect in the direction away from the horizontal sawtooth group 571, and the moving piston rod 53 is not affected by it in this process;

[0068] That is, when the surgical instruments in the basket 2 are exhausted after the disinfection and sterilization operation is completed, the exhausted high-pressure and high-temperature steam can assist the piston block 65 to reset to the right to wait for the next vacuum operation, and at the same time, the gas exhausted through the one-way exhaust pipe 675 can be depressurized and cooled, so as to improve the safety of the device;

[0069] Finally, the sealed bin cover 5 and the placement basket 2 are reset to just above the disinfection bin body 31 by controlling the display 3, the surgical instruments in the placement basket 2 are unloaded, and then the sealed bin cover 5 and the placement basket 2 are reset to just above the cleaning bin body 11.

[0070] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A medical surgical instrument cleaning and disinfecting device, comprising an equipment base (1), a placement basket (2), an ultrasonic cleaning mechanism (10), a clean water flushing mechanism (20), a high-pressure steam disinfection mechanism (30) and a control display (3), characterized in that: The upper inner part of the device base (1) is provided with a moving mechanism (40) for moving the placement basket (2) leftward and rightward, the moving mechanism (40) comprising a moving block (41) slidably connected to the upper inner part of the device base (1), an electro-hydraulic push rod group (4) is installed outside the moving block (41), the output end of the electro-hydraulic push rod group (4) is fixedly connected to a sealing chamber cover (5) connected to the placement basket (2), the ultrasonic cleaning mechanism (10), the clean water flushing mechanism (20) and the high-pressure steam sterilizing mechanism (30) respectively comprise a cleaning chamber body (11), a flushing chamber body (21) and a sterilizing chamber body (31) fixedly connected to the lower inner part of the device base (1); A bubble stirring mechanism (50) for stirring is arranged inside the cleaning bin body (11), and the bubble stirring mechanism (50) comprises an air hole plate (51) axially symmetrically fixedly connected to the bottom of the cleaning bin body (11); The interior of the disinfection chamber (31) is provided with a vacuum pumping mechanism (60) for performing vacuum pumping. The vacuum pumping mechanism (60) comprises a vacuum branch pipe (61) fixedly connected to the bottom of the cleaning chamber (11) and axially symmetrically distributed, a vacuum pump (62) installed outside the cleaning chamber (11), and a pressure relief pipe (63).

2. A medical surgical instrument cleaning and disinfection device according to claim 1, characterized in that: The outer bottom of the cleaning chamber (11) is provided with a power generator (12); the inner bottom of the cleaning chamber (11) is provided with an ultrasonic transducer (13) connected to the power generator (12); the inner bottom of the cleaning chamber (11) is also provided with a heating coil (14); the inner side wall of the cleaning chamber (11) is provided with a cleaning liquid temperature sensor (15); the control display (3) is connected to the power generator (12) and the heating coil (14) and is provided with a cleaning timing module therein; The flushing chamber (21) is provided with a through hole (22) symmetrically on the outside thereof, and the inner wall of the flushing chamber (21) is connected to a self-resetting water storage pipe (23) in a symmetrical rotation manner. The outside of the self-resetting water storage pipe (23) is evenly provided with cleaning nozzles (24). A magnet block (25) is installed on the outside of the self-resetting water storage pipe (23). The inner wall of the flushing chamber (21) is provided with an electromagnet (26) symmetrically on the inside thereof, and the electromagnet (26) can absorb the magnet block (25) when it is energized. The magnet block (25) is provided on the outside of the flushing chamber body (21), a water storage ring chamber (27) is provided on the top of the water storage ring chamber (27) in an axisymmetric manner, a connecting hose (29) passing through the through hole (22) and connected to the self-resetting water storage pipe (23) is provided at the water outlet of the water pump (28), the control display (3) is connected to the magnet block (25) and the water pump (28) and a flushing timing module is provided inside the control display (3); A steam generator (32) is installed at the bottom of the disinfection chamber (31), a steam temperature sensor (33) and a pressure sensor (34) are installed on the inner wall of the disinfection chamber (31), and the control display (3) is connected to the steam generator (32) and is internally provided with a disinfection timing module; The moving mechanism (40) further comprises a driving motor A (42) mounted on the outside of the device base (1); the output end of the driving motor A (42) extends to the inside of the device base (1) and is fixedly connected to a rotating screw (43); the moving block (41) is threadedly connected to the outside of the rotating screw (43); the control display (3) is connected to the driving motor A (41) and is provided with a precise positioning module inside.

3. A medical surgical instrument cleaning and disinfection device according to claim 1, characterized in that: The outside of the moving block (41) is fixedly connected to the fixed end of the electro-hydraulic push rod group (4) through a mounting frame (6); the middle part of the sealed bin cover (5) is rotatably connected to a middle rotating rod (7) fixedly connected to the middle part of the placement basket (2); the inner top wall of the sealed bin cover (5) is fixedly connected to an arc-shaped slide rail (8); the inner part of the arc-shaped slide rail (8) is axially symmetrically slidably connected to an edge rotating rod (9) fixedly connected to the edge of the placement basket (2).

4. A medical surgical instrument cleaning and disinfection device according to claim 1, characterized in that: The bubble stirring mechanism (50) also includes an air-increasing main pipe (52) fixedly connected to the bottom of the cleaning bin body (11), a moving piston rod (53) is arranged inside the air-increasing main pipe (52), an air-increasing branch pipe (54) fixedly connected to the bottom of the air hole disk (51) is axially symmetrically fixedly connected to the outside of the air-increasing main pipe (52), a self-resetting one-way valve plate (55) capable of deflecting upward is arranged on the top of the air hole disk (51), a one-way exhaust pipe (56) is fixedly connected between the air-increasing main pipe (52) and the cleaning bin body (11), both ends of the one-way exhaust pipe (56) are provided with one-way valve bodies, and a moving part A (57) capable of driving it to reciprocate left and right is arranged outside the moving piston rod (53).

5. A medical surgical instrument cleaning and disinfection device according to claim 4, characterized in that: The moving part A (57) comprises a horizontal return spring (570) and a horizontal sawtooth group (571) fixedly connected to the moving piston rod (53); one end of the horizontal return spring (570) away from the moving piston rod (53) is fixedly connected to the inside of the air-increasing main pipe (52); The moving part A (57) also includes a driving motor B (572) installed below the cleaning bin body (11) and connected to the control display (3), and the output end of the driving motor B (572) is fixedly connected to a semi-driving gear (573) that can drive the moving piston rod (53) to move through the horizontal sawtooth group (571).

6. A medical surgical instrument cleaning and disinfection device according to claim 5, characterized in that: The vacuum pumping mechanism (60) further comprises an exhaust pipe (64) fixedly connected to the bottom of the disinfection chamber (31), a moving piston block (65) being arranged inside the exhaust pipe (64), the exhaust pipe (64) being connected to the exhaust branch pipe (61), the ends of the exhaust branch pipe (61) and the pressure relief pipe (63) being both provided with solenoid valves (66) connected to the control display (3), and a moving part B (67) capable of driving the moving piston block (65) to perform a single left-right movement being arranged outside the moving piston block (65).

7. A medical surgical instrument cleaning and disinfection device according to claim 6, characterized in that: The moving part B (67) comprises a connecting rope (670) fixedly connected to the moving piston block (65), a guide wheel (671) installed at the end of the exhaust main pipe (64), and a winding wheel (672) installed below the flushing chamber body (21), wherein one end of the connecting rope (670) away from the moving piston block (65) passes around the guide wheel (671) and is wound around the outside of the winding wheel (672); The moving part B (67) further comprises a horizontal fixed pipe (673) fixedly connected to the pressure relief pipe (63); the outside of the horizontal fixed pipe (673) is slidably connected to a horizontal sliding pipe (674) close to the moving piston block (65); the end of the horizontal sliding pipe (674) is internally fixedly connected to a steam impact ring; The moving part B (67) further comprises a one-way air release pipe (675) fixedly connected to the air extraction main pipe (64), and a one-way valve body is arranged at the end of the one-way air release pipe (675).

8. A medical surgical instrument cleaning and disinfection device according to claim 7, characterized in that: A force storage member (77) for storing force on the winding wheel (672) is provided below the flushing chamber (21), and the force storage member (77) includes a self-resetting single-biased sawtooth group (770) fixedly connected to the outside of the moving piston rod (53), and the self-resetting single-biased sawtooth group (770) can be deflected in a direction away from the horizontal sawtooth group (571); The force storage member (77) further comprises a meshing gear (771) rotatably connected to the bottom of the flushing chamber body (21); the moving piston rod (53) can drive the meshing gear (771) to rotate counterclockwise through the self-resetting single-biased sawtooth group (770); and the outer side of the meshing gear (771) is fixedly connected to a force storage torsion spring (772) via a connecting shaft; The force storage member (77) also includes a rotating disk (773) rotatably connected to the bottom of the flushing bin body (21); the outer side of the meshing gear (771) is fixedly connected to a rotating cylinder (774) via a connecting shaft; the rotating disk (773) is rotatably connected to the inside of the rotating cylinder (774); a groove (775) is symmetrically provided on the outer side of the rotating disk (773); a self-resetting one-way driving pawl (776) is rotatably connected inside the groove (775); a one-way driving ratchet groove (777) is symmetrically provided on the inner side of the rotating cylinder (774); the rotating cylinder (774) can drive the rotating disk (773) to rotate clockwise via the one-way driving ratchet groove (777) and the self-resetting one-way driving ratchet pawl (776); a synchronous pulley (778) is provided between the rotating disk (773) and the winding wheel (672).

Citation Information

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