Medical instrument production and storage device with cleaning and disinfecting functions

Abstract

The invention relates to the technical field of medical instrument storage, and discloses a medical instrument production and storage device with cleaning and disinfection functions, which comprises a mounting assembly, the mounting assembly comprises a mounting box, the outer surface of the mounting box is provided with a placement groove, and the top of the mounting box is fixedly provided with a liquid storage box. A first driving gear drives a related gear to rotate, so that a spraying frame revolves, a rotation rod rotates, a revolution spraying opening and a rotation spraying opening are driven to comprehensively spray a disinfectant to the medical apparatus on the conveying assembly, and in the storage assembly, by means of cooperative operation of a damper, a buffer spring, a limiting rod, a moving seat, a supporting plate and other structures, the disinfection effect is improved. And in the aspect of quality guarantee of the medical apparatus and instruments, germs can be effectively killed through comprehensive disinfection, sanitation and safety of the medical apparatus and instruments are guaranteed, the apparatus and instruments are prevented from being damaged, the service life of the medical apparatus and instruments is prolonged, loss cost is reduced, and therefore the medical apparatus and instruments storage and management device plays a positive role in storage and management of the medical apparatus and instruments.

Description

Technical Field

[0001] The present invention relates to the technical field of medical device storage, and in particular to a medical device production and storage device with cleaning and disinfection functions. Background Art

[0002] With the development of the medical and health industry, such a device is used for the storage, cleaning and disinfection of medical devices after production. For example, in a medical device manufacturing factory, the produced medical devices need to be cleaned and disinfected before storage, and this device can efficiently complete these operations. In the medical device management department of a hospital, when receiving new medical devices or processing used medical devices, this device can also be used to improve management efficiency and ensure the quality and safety of medical devices; However, in actual use, storage devices with similar structures still have many defects. For example, existing storage devices may require more manpower for the handling and transfer of instruments. At the same time, the existing storage devices have incomplete disinfection, which is not convenient for comprehensively spraying and disinfecting medical devices. At the same time, there may be no good buffer structure during the storage of instruments, which is easy to cause damage to the instruments. Therefore, it is necessary to design a medical device production and storage device with cleaning and disinfection functions. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides a medical device production and storage device with cleaning and disinfection functions.

[0004] The present invention is implemented by the following technical solutions: A medical device production and storage device with cleaning and disinfection functions, including an installation component, the installation component includes an installation box, a placement groove is provided on the outer surface of the installation box, a liquid storage box is fixedly installed on the top of the installation box, and an output end of the liquid storage box is fixedly connected to a water delivery pipe. The device further includes: A storage component, the storage component includes a storage box, and a support plate is fixedly installed inside the storage box through a damper; A spraying component, the spraying component includes a first force-bearing gear rotatably installed on the inner wall of the installation box, a spraying frame is fixedly installed on the outer surface of the first force-bearing gear, and a revolution spraying port is fixedly installed on the inner wall of the spraying frame; A support component, the support component includes a bearing frame fixedly installed on the inner wall of the installation box, and an installation frame is fixedly installed on the top of the bearing frame; A conveying component, the conveying component includes a first conveyor belt sleeved on the outer surface of a first roller; A driving component, the driving component includes a servo motor fixedly installed on the top inner wall of the installation box, and an output end of the servo motor is fixedly connected to a first driving gear; The positioning component comprises an electric push rod fixedly mounted on the top of the mounting frame, and a push plate is slidably mounted inside the electric push rod.

[0005] As a further improvement of the above scheme, a support frame is fixedly installed on the top of the inner wall of the installation box, a storage box is fixedly installed on the top of the support frame, a protective cabinet door is rotatably installed on the outer surface of the storage box, a damper is fixedly installed inside the storage box, a support plate is fixedly installed on the top of the damper, and a limiting rod is fixedly installed on the inner wall of the storage box.

[0006] Through the above technical solution, the protective cabinet door rotatably installed on the outer surface of the storage box facilitates the taking and placing of medical devices, and at the same time plays a role in protecting the internal devices. The damper, support plate, limit rod and other structures inside the storage box work together to play a role in buffering and supporting when the devices are stacked, thereby preventing the devices from being damaged due to collision or squeezing.

[0007] As a further improvement of the above scheme, a movable seat is slidably installed on the outer surface of the limit rod, a buffer spring is fixedly connected to the outer surface of the movable seat, the side of the buffer spring away from the movable seat is fixedly connected to the inner wall of the storage box, and a connecting rod is rotatably installed inside the movable seat, and the side of the connecting rod away from the movable seat is rotatably installed inside the support plate.

[0008] Through the above technical solution, the movable seat can move along the direction of the limit rod, the buffer spring is compressed to absorb energy and play a buffering role, and the connecting rod connects the movable seat and the support plate, so that the support plate can adjust the height as the movable seat moves, thereby ensuring the stability of the equipment during stacking and further preventing damage to the equipment.

[0009] As a further improvement of the above scheme, a water inlet is fixedly installed on the outer surface of the spray rack, a water storage tank is opened inside the spray rack, the water storage tank is communicated with the water inlet, and a mounting seat is fixedly installed on the outer surface of the spray rack, and a rotating rod is rotatably installed inside the mounting seat.

[0010] Through the above technical solution, the mounting seat provides a rotational mounting position for the rotating rod, ensuring that the rotating rod can rotate stably, thereby achieving effective spraying and disinfection of medical devices by the rotating spray port.

[0011] As a further improvement of the above scheme, a second force gear is fixedly installed on the side of the outer surface of the rotating rod away from the first force gear, and the second force gear is rotatably installed on the inner wall of the mounting box. A rotating spray outlet matching the revolving spray outlet is fixedly installed on the outer surface of the rotating rod, and the rotating rod is connected to the water pipe.

[0012] Through the above technical solution, when the rotating rod is provided with a disinfectant by the water delivery pipe, the medical devices are comprehensively disinfected through the rotating spraying port and the revolving spraying port, ensuring the comprehensiveness and effectiveness of the disinfection.

[0013] As a further improvement of the above solution, a fixed rod is rotatably installed inside the mounting frame. A first roller is fixedly installed on the outer surface of the fixed rod. A second roller is sleeved on the outer surface of the fixed rod. A limiting seat is fixedly installed on the side of the second roller away from the first roller.

[0014] Through the above technical solution, the first roller and the second roller can rotate stably, providing a power basis for the operation of the conveyor belt, so as to realize the stable transportation of medical devices on the conveyor belt.

[0015] As a further improvement of the above solution, a first conveyor belt, a second conveyor belt and a third conveyor belt are sleeved on the outer surface of the first roller. A fourth conveyor belt and a fifth conveyor belt are sleeved on the outer surface of the second roller. A limiting frame is fixedly installed on the outer surface of the mounting frame.

[0016] As a further improvement of the above solution, a second driving gear and a connecting gear are rotatably installed on the inner wall of the installation box. The second driving gear meshes with the connecting gear. The connecting gear meshes with the first stress gear and the second stress gear. A rotating rod is fixedly installed on the outer surface of the second driving gear. A third stress gear is fixedly installed on the side of the rotating rod away from the second driving gear. The third stress gear meshes with the first driving gear.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, the first driving gear is driven by a servo motor. Through the meshing transmission of a series of gears such as the first driving gear, the third stress gear, the second driving gear, the connecting gear, the first stress gear and the second stress gear, the first roller and the second roller in the conveying assembly are driven to rotate, so that the first conveyor belt, the second conveyor belt, the third conveyor belt, the fourth conveyor belt and the fifth conveyor belt convey in opposite directions. At the same time, the electric push rod pushes the push plate to assist the transfer of the instrument between the conveyor belts. During the storage process of medical devices, manpower can be saved, the work efficiency can be improved, and it is ensured that the medical devices are quickly and orderly transferred from one position to another position, such as from the outside to the storage box, which helps to improve the operation efficiency of the entire medical device production and storage device.

[0018] The present invention drives relevant gears to rotate through a first driving gear, causing the spraying frame to revolve and the self-rotating rod to rotate, driving the revolving spraying ports and the self-rotating spraying ports to comprehensively spray disinfectant on the medical devices on the conveying assembly. Moreover, in the storage assembly, through the coordinated operation of structures such as dampers, buffer springs, limit rods, movable seats, and support plates, buffering is carried out when the devices are stacked. In terms of the quality assurance of medical devices, comprehensive disinfection can effectively kill germs, ensuring the hygienic safety of medical devices. Avoiding damage to the devices extends the service life of medical devices and reduces the loss cost, thus playing a positive role in the storage management of medical devices. Brief Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the interior of the overall structure of the present invention; Figure 3 It is a schematic diagram of the structure of the storage assembly of the present invention; Figure 4 It is a schematic diagram of the structure of the spraying assembly of the present invention; Figure 5 It is a schematic diagram of the interior of the structure of the spraying frame of the present invention; Figure 6 It is a schematic diagram of the structure of the conveying assembly of the present invention; Figure 7 It is a schematic diagram of the structure of the driving assembly of the present invention; Figure 8 It is a schematic diagram of the structure of the positioning assembly of the present invention.

[0020] Main Symbol Description: 101. Installation box; 102. Placement groove; 103. Liquid storage tank; 104. Water delivery pipe; 2. Storage component; 201. Support frame; 202. Storage box; 203. Protective cabinet door; 204. Damper; 205. Support plate; 206. Limit rod; 207. Moving seat; 208. Buffer spring; 209. Connecting rod; 3. Spraying component; 301. Spraying rack; 302. Water injection port; 303. Water storage tank; 304. Revolution spraying port; 305. Mounting seat; 306. First stress gear; 307. Rotating rod; 308. Second stress gear; 309. Rotation spraying port; 4. Support component; 401. Mounting frame; 402. Fixed rod; 403. First roller; 404. Second roller; 405. Limit seat; 406. Carrying frame; 5. Conveying component; 501. First conveyor belt; 502. Second conveyor belt; 503. Limit frame; 504. Third conveyor belt; 505. Fourth conveyor belt; 506. Fifth conveyor belt; 6. Driving component; 601. Servo motor; 602. First driving gear; 603. Third stress gear; 604. Rotating rod; 605. Second driving gear; 606. Transmission chain; 607. Connecting gear; 7. Positioning component; 701. Electric push rod; 702. Push plate. Detailed implementation manners

[0021] Next, in combination with the accompanying drawings and specific implementation manners, the present invention will be further described. It should be noted that, on the premise of no conflict, the following described embodiments or technical features can be arbitrarily combined to form new embodiments.

[0022] Please refer to Figures 1-8 A medical device production and storage device with cleaning and disinfection functions in this embodiment includes an installation component. The installation component includes an installation box 101. A placement groove 102 is formed on the outer surface of the installation box 101. A liquid storage tank 103 is fixedly installed on the top of the installation box 101. The output end of the liquid storage tank 103 is fixedly connected to a water delivery pipe 104. It further includes: A storage component 2, which includes a storage box 202. A support plate 205 is fixedly installed inside the storage box 202 through a damper 204; A spraying component 3, which includes a first stress gear 306 rotatably installed on the inner wall of the installation box 101. A spraying rack 301 is fixedly installed on the outer surface of the first stress gear 306. A revolution spraying port 304 is fixedly installed on the inner wall of the spraying rack 301; A support component 4, which includes a carrying frame 406 fixedly installed on the inner wall of the installation box 101. An installation frame 401 is fixedly installed on the top of the carrying frame 406; A conveying component 5, which includes a first conveyor belt 501 sleeved on the outer surface of the first roller 403; The driving assembly 6 includes a servo motor 601 fixedly mounted on the top of the inner wall of the installation box 101, and the output end of the servo motor 601 is fixedly connected to a first driving gear 602; The positioning component 7 includes an electric push rod 701 fixedly mounted on the top of the mounting frame 401, and a push plate 702 is slidably mounted inside the electric push rod 701.

[0023] A support frame 201 is fixedly installed on the top of the inner wall of the installation box 101, a storage box 202 is fixedly installed on the top of the support frame 201, a protective cabinet door 203 is rotatably installed on the outer surface of the storage box 202, a damper 204 is fixedly installed inside the storage box 202, a support plate 205 is fixedly installed on the top of the damper 204, and a limit rod 206 is fixedly installed on the inner wall of the storage box 202.

[0024] A movable seat 207 is slidably installed on the outer surface of the limiting rod 206, and a buffer spring 208 is fixedly connected to the outer surface of the movable seat 207. The side of the buffer spring 208 away from the movable seat 207 is fixedly connected to the inner wall of the storage box 202, and a connecting rod 209 is rotatably installed inside the movable seat 207. The side of the connecting rod 209 away from the movable seat 207 is rotatably installed inside the support plate 205.

[0025] The buffering effect of the damper 204 and the buffer spring 208 is utilized to ensure that the equipment is not damaged. The support plate 205 in the storage box 202 moves up and down with the stacking of the equipment under the support of the damper 204 to provide a support plane for the equipment, and is connected to the movable seat 207 through the connecting rod 209. When the movable seat 207 moves, the support plate 205 can also adjust its height accordingly through the transmission of the connecting rod 209 to adapt to the stacking of different numbers of equipment.

[0026] A water inlet 302 is fixedly installed on the outer surface of the spray rack 301, a water storage tank 303 is opened inside the spray rack 301, and the water storage tank 303 is communicated with the water inlet 302. A mounting seat 305 is fixedly installed on the outer surface of the spray rack 301, and a rotating rod 307 is rotatably installed inside the mounting seat 305.

[0027] A second force gear 308 is fixedly installed on the side of the outer surface of the rotating rod 307 away from the first force gear 306. The second force gear 308 is rotatably installed on the inner wall of the installation box 101. A rotating spray port 309 matching the revolving spray port 304 is fixedly installed on the outer surface of the rotating rod 307. The rotating rod 307 is connected to the water pipe 104.

[0028] Since all the conveyor belts within the conveying assembly 5 are selected as mesh conveyor belts, the rotating spray nozzles 309 on the outer surface of the rotating rod 307 can spray the bottom of the instruments, thus ensuring more comprehensive disinfection of the instruments. In the structure of the spraying frame 301, the mounting seat 305 plays a role in fixing the rotating rod 307, enabling the rotating rod 307 to rotate stably within the mounting seat 305, and ensuring that the rotating spray nozzles 309 and the revolving spray nozzles 304 can accurately spray and disinfect the instruments.

[0029] A fixing rod 402 is rotatably installed inside the mounting frame 401. A first roller 403 is fixedly installed on the outer surface of the fixing rod 402. A second roller 404 is sleeved on the outer surface of the fixing rod 402. A limiting seat 405 is fixedly installed on the side of the second roller 404 away from the first roller 403.

[0030] A first conveyor belt 501, a second conveyor belt 502, and a third conveyor belt 504 are sleeved on the outer surface of the first roller 403. A fourth conveyor belt 505 and a fifth conveyor belt 506 are sleeved on the outer surface of the second roller 404. A limiting frame 503 is fixedly installed on the outer surface of the mounting frame 401.

[0031] A second driving gear 605 and a connecting gear 607 are rotatably installed on the inner wall of the mounting box 101. The second driving gear 605 meshes with the connecting gear 607. The connecting gear 607 meshes with a first stress gear 306 and a second stress gear 308. A rotating rod 604 is fixedly installed on the outer surface of the second driving gear 605. A third stress gear 603 is fixedly installed on the side of the rotating rod 604 away from the second driving gear 605. The third stress gear 603 meshes with a first driving gear 602.

[0032] Since the rotating rods 604 on both sides rotate in different directions, the limiting seat 405 can be driven to rotate in opposite directions on the surface of the fixing rod 402, thus ensuring that the first conveyor belt 501, the second conveyor belt 502, and the third conveyor belt 504 on the outer surface of the first roller 403 and the fourth conveyor belt 505 and the fifth conveyor belt 506 on the outer surface of the second roller 404 are conveyed in opposite directions.

[0033] The implementation principle of a medical device production and storage device with cleaning and disinfection functions in the embodiment of the present application is as follows: First, pour the disinfectant into the liquid storage tank 103. The water pump inside the liquid storage tank 103 works to convey the disinfectant through the water delivery pipe 104 into the rotating rod 307. Then, the disinfectant enters the space of the water storage tank 303 inside the spraying frame 301 through the water injection port 302, preparing the disinfectant for subsequent disinfection work.

[0034] After the medical device to be stored is placed on the outer surface of the first conveyor belt 501, the servo motor 601 starts to work. The output end of the servo motor 601 drives the first driving gear 602 to rotate. Since the third force-bearing gears 603 on both sides of the first driving gear 602 are meshed with it, according to the gear transmission principle, the rotation of the first driving gear 602 will drive the third force-bearing gears 603 on both sides to rotate, and then drive the second driving gears 605 on both sides to rotate in opposite directions. Because the transmission chain 606 connects the rotating rod 604 and the fixed rod 402, and the transmission chain 606 on the other side connects the rotating rod 604 on the other side and the limit seat 405, the rotation of the second driving gear 605 will drive the first roller 403 on the outer surface of the fixed rod 402 to rotate. At the same time, since the rotating rods 604 on both sides rotate in different directions, the limit seat 405 can be driven to rotate in the opposite direction on the surface of the fixed rod 402, so as to ensure that the first conveyor belt 501, the second conveyor belt 502 and the third conveyor belt 504 on the outer surface of the first roller 403 and the fourth conveyor belt 505 and the fifth conveyor belt 506 on the outer surface of the second roller 404 are conveyed in opposite directions.

[0035] In this process, the mounting frame 401 plays a role in fixedly supporting components such as the fixed rod 402, the first roller 403, the second roller 404 and the limit seat 405, ensuring that they rotate and transmit power in relatively stable positions. As the medical device is driven by the first conveyor belt 501 and conveyed to the third conveyor belt 504, the electric push rod 701 starts to work, pushing the push plate 702 to push the medical device to the fourth conveyor belt 505. In this process, the mounting frame 401 provides an installation position for the electric push rod 701 to ensure that it can normally push the push plate 702 to work. Subsequently, the fifth conveyor belt 506 conveys the medical device into the storage component 2. As medical devices are continuously placed, the medical devices will be continuously stacked in the storage component 2 by means of the conveyance of the conveying component 5.

[0036] When the medical devices are stacked in the storage component 2, as the number of medical devices increases, the downward pressure increases, driving the moving seat 207 to move towards the inner wall of the storage box 202. Since the damper 204 is installed inside the storage box 202, the damper 204 descends during the downward pressure of the medical devices, and at the same time, the buffer spring 208 is also compressed. The limit rod 206 here plays a role in restricting the moving direction of the moving seat 207, enabling it to move only along the direction of the limit rod 206 to ensure the stability of the buffering process. By using the buffering effects of the damper 204 and the buffer spring 208, it is ensured that the medical devices are not damaged. The support plate 205 in the storage box 202 moves up and down with the stacking of the medical devices under the support of the damper 204, providing a support plane for the medical devices, and is connected to the moving seat 207 through the connecting rod 209. When the moving seat 207 moves, through the transmission of the connecting rod 209, the support plate 205 can also adjust its height accordingly to adapt to the stacking of different numbers of medical devices.

[0037] When the first driving gear 602 drives the third stress-bearing gears 603 on both sides to rotate in opposite directions, since the second driving gear 605 is engaged with the connecting gear 607, and the connecting gear 607 is engaged with the first stress-bearing gear 306 and the second stress-bearing gear 308 on the other side, this gear transmission relationship enables the spraying frame 301 to revolve within the installation box 101 and at the same time drive the self-rotating rod 307 to rotate within the spraying frame 301. The self-rotation of the spraying frame 301 can be used to spray disinfectant on the instruments on the outer surface of the conveying assembly 5. At the same time, since all the conveyor belts within the conveying assembly 5 are selected as mesh conveyor belts, the self-rotating spraying ports 309 on the outer surface of the self-rotating rod 307 can spray the bottoms of the instruments, thereby ensuring more comprehensive disinfection of the instruments. In the structure of the spraying frame 301, the mounting seat 305 plays a role in fixing the self-rotating rod 307, enabling the self-rotating rod 307 to rotate stably within the mounting seat 305 and ensuring that the self-rotating spraying ports 309 and the revolving spraying ports 304 can accurately spray and disinfect the instruments.

[0038] The above-mentioned embodiments are only the preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantive changes and substitutions made by those skilled in the art on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A medical device production and storage device with cleaning and disinfection functions, including an installation component, the installation component includes an installation box (101), a placement groove (102) is provided on the outer surface of the installation box (101), a liquid storage tank (103) is fixedly installed on the top of the installation box (101), and an output end of the liquid storage tank (103) is fixedly connected to a water delivery pipe (104), characterized in that, It further includes: a storage component (2), the storage component (2) includes a storage box (202), and a support plate (205) is fixedly installed inside the storage box (202) through a damper (204); a spraying component (3), the spraying component (3) includes a spraying frame (301) rotatably installed on the inner wall of the installation box (101), and a revolution spraying port (304) is fixedly installed on the inner wall of the spraying frame (301); a support component (4), the support component (4) includes a bearing frame (406) fixedly installed on the inner wall of the installation box (101), and a mounting frame (401) is fixedly installed on the top of the bearing frame (406); a conveying component (5), the conveying component (5) includes a first conveyor belt (501) sleeved on the outer surface of the first roller (403); a driving component (6), the driving component (6) includes a servo motor (601) fixedly installed on the top of the inner wall of the installation box (101), and a first driving gear (602) is fixedly connected to the output end of the servo motor (601); a positioning component (7), the positioning component (7) includes an electric push rod (701) fixedly installed on the top of the mounting frame (401), and a push plate (702) is slidably installed inside the electric push rod (701).

2. The medical device production and storage device with cleaning and disinfection functions according to claim 1, characterized in that, A support frame (201) is fixedly installed on the top of the inner wall of the installation box (101), a storage box (202) is fixedly installed on the top of the support frame (201), a protective cabinet door (203) is rotatably installed on the outer surface of the storage box (202), a damper (204) is fixedly installed inside the storage box (202), a support plate (205) is fixedly installed on the top of the damper (204), and a limiting rod (206) is fixedly installed on the inner wall of the storage box (202).

3. A medical device production and storage device with cleaning and disinfection functions as described in claim 2, characterized in that, A moving seat (207) is slidably installed on the outer surface of the limiting rod (206), a buffer spring (208) is fixedly connected to the outer surface of the moving seat (207), one side of the buffer spring (208) away from the moving seat (207) is fixedly connected to the inner wall of the storage box (202), a connecting rod (209) is rotatably installed inside the moving seat (207), and one side of the connecting rod (209) away from the moving seat (207) is rotatably installed inside the support plate (205).

4. A medical device production and storage device with cleaning and disinfection functions according to claim 1, characterized in that, A water injection port (302) is fixedly installed on the outer surface of the spraying frame (301), a water storage tank (303) is formed inside the spraying frame (301), the water storage tank (303) communicates with the water injection port (302), a mounting seat (305) is fixedly installed on the outer surface of the spraying frame (301), and a self-rotating rod (307) is rotatably installed inside the mounting seat (305).

5. The medical device production and storage device with cleaning and disinfection functions according to claim 4, wherein, On the side of the outer surface of the rotating rod (307) away from the first force-bearing gear (306), a second force-bearing gear (308) is fixedly installed. The second force-bearing gear (308) is rotatably installed on the inner wall of the installation box (101). On the outer surface of the rotating rod (307), a rotating spray port (309) matching the revolution spray port (304) is fixedly installed. The rotating rod (307) is connected to the water delivery pipe (104).

6. The medical device production and storage device with cleaning and disinfection functions according to claim 1, wherein, Inside the mounting frame (401), a fixed rod (402) is rotatably installed. On the outer surface of the fixed rod (402), a first roller (403) is fixedly installed. A second roller (404) is sleeved on the outer surface of the fixed rod (402). On the side of the second roller (404) away from the first roller (403), a limit seat (405) is fixedly installed.

7. The medical device production and storage device with cleaning and disinfection functions according to claim 6, characterized in that, A first conveyor belt (501), a second conveyor belt (502) and a third conveyor belt (504) are sleeved on the outer surface of the first roller (403). A fourth conveyor belt (505) and a fifth conveyor belt (506) are sleeved on the outer surface of the second roller (404). A limit frame (503) is fixedly installed on the outer surface of the mounting frame (401).

8. The medical device production and storage device with cleaning and disinfection functions according to claim 1, characterized in that, On the inner wall of the installation box (101), a second driving gear (605) and a connecting gear (607) are rotatably installed. The second driving gear (605) meshes with the connecting gear (607). The connecting gear (607) meshes with the first force-bearing gear (306) and the second force-bearing gear (308). On the outer surface of the second driving gear (605), a rotating rod (604) is fixedly installed. On the side of the rotating rod (604) away from the second driving gear (605), a third force-bearing gear (603) is fixedly installed. The third force-bearing gear (603) meshes with the first driving gear (602).

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