Operating microscope multi-degree-of-freedom objective lens adjusting device

Abstract

The invention relates to a multi-degree-of-freedom objective lens adjusting device for an operating microscope, and belongs to the technical field of operating microscopes, the multi-degree-of-freedom objective lens adjusting device comprises a moving frame, a lifting rod is slidably connected to the outer wall of the moving frame, a connecting rod is fixedly connected to the top of the lifting rod, and a telescopic rod is slidably connected to the inner wall of the connecting rod; one end of the telescopic rod is rotationally connected with a rotating frame, and the outer wall of the rotating frame is slidably connected with a threaded sliding block. The effect of conveniently adjusting the use height of the observation seat is achieved through the arranged lifting rod, the effect of telescopic movement of the vertical use position of the observation seat is achieved through the arranged telescopic rod, and the effect of adjusting the horizontal use angle of the observation seat is achieved through the arranged rotating frame; and meanwhile, by arranging the rotating shaft, the effect of vertically adjusting the use angle of the observation seat is achieved, so that the microscope objective lens can be adjusted and used in a multi-degree-of-freedom manner.

Description

Technical Field

[0001] This invention relates to the field of surgical microscope technology, and more specifically, to a multi-degree-of-freedom objective lens adjustment device for a surgical microscope. Background Technology

[0002] A surgical microscope is a type of microscope primarily used in teaching experiments for anatomy, suturing of fine blood vessels and nerves, and other delicate surgeries or examinations requiring the aid of a microscope. Surgical microscope video recording systems, also known as camera systems, high-definition image display systems, or digital surgical image management systems, are functions specifically designed by medical institutions to preserve video recordings of surgical procedures, facilitating the retrieval and archiving of past medical records.

[0003] However, while existing surgical microscopes offer relatively good vertical adjustment of the objective lens, their multi-degree-of-freedom adjustment capabilities, including vertical and horizontal fine-tuning and nodding-style fine-tuning, are limited. This reduces the flexibility of objective lens observation during patient treatment and monitoring. Furthermore, when rotating the objective lens, the self-lubricating effect of the rotating axis is poor under prolonged continuous rotation, easily leading to increased friction on the axis surface, reducing the smoothness of objective lens angle adjustment and causing vibration during adjustment, thus affecting the accuracy of objective lens angle adjustment. Additionally, when the microscope is not in use, the protection for the observation eyepiece is inadequate, and the synchronous locking and fixing effect on the observation base reduces its position retention when not in use, failing to meet user needs. Therefore, we propose a multi-degree-of-freedom objective lens adjustment device for surgical microscopes. Summary of the Invention

[0004] To address the problems mentioned in the background, this invention provides a multi-degree-of-freedom objective lens adjustment device for surgical microscopes. This device solves the problems raised in the background art, such as low multi-degree-of-freedom adjustability for vertical and horizontal fine-tuning and nodding-type fine-tuning of the objective lens, poor self-lubrication effect under prolonged continuous rotation of the rotation axis, poor protection of the observation eyepiece when the microscope is not in use, and reduced effectiveness of synchronous locking and fixing of the observation seat, thus reducing the position retention effect of the observation seat when not in use.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0006] A multi-degree-of-freedom objective lens adjustment device for a surgical microscope includes a movable frame, a lifting rod slidably connected to the outer wall of the movable frame, a connecting rod fixedly connected to the top of the lifting rod, a telescopic rod slidably connected to the inner wall of the connecting rod, a rotating frame rotatably connected to one end of the telescopic rod, a threaded slider slidably connected to the outer wall of the rotating frame, a connecting frame fixedly connected to the outer wall of the threaded slider, an observation seat rotatably connected to the inner side wall of the connecting frame, and an observation eyepiece disposed on the outer wall of the observation seat.

[0007] The outer wall of the connecting frame is provided with a connecting bearing, and the inner side wall of the connecting bearing is rotatably connected to a rotating shaft that is fixedly connected to the outer wall of the observation seat. One end of the rotating shaft is fixedly connected to a swing rod, and one end of the swing rod is fixedly connected to a sliding column that is slidably connected to the outer wall of the connecting frame. The outer wall of the swing rod is rotatably connected to a damper body that is rotatably connected to the outer wall of the connecting frame.

[0008] The outer wall of the connecting frame is equipped with a lubricating oil box, and the outer wall of the lubricating oil box is fixedly connected to an oil injection pipe via a connecting pump. One end of the oil injection pipe is fixedly connected to an annular tube located inside the connecting bearing. The inner side wall of the connecting bearing has an oil injection port that fits against the surface of the rotating shaft. The lifting rod allows for convenient adjustment of the observation seat's height. The telescopic rod allows for telescopic movement of the observation seat in its vertical position. The rotating frame allows for adjustment of the observation seat's horizontal angle. The threaded slider allows for fine-tuning of the observation seat's horizontal position. Simultaneously, the rotating shaft allows for vertical adjustment of the observation seat's angle, enabling multi-degree-of-freedom adjustment of the microscope objective.

[0009] Preferably, the outer wall of the rotating frame is provided with a second servo motor, and the output end of the second servo motor is fixedly connected to a threaded rod that is threadedly connected to the outer wall of the threaded slider. The connection part between the outer wall of the rotating frame and the threaded slider is provided with a reciprocating groove.

[0010] Preferably, the outer wall of the connecting rod is provided with an observation display screen, the rotating frame moves in a horizontal rotation trajectory, and the observation seat moves in a nodding rotation trajectory via a rotating shaft.

[0011] Preferably, the oil inlets are arranged in a ring about the central axis of the annular tube, and the oil inlets are interconnected with the annular tube. The arrangement of the swing rod, damper body, and oil inlets allows the second gear to provide auxiliary buffering and self-lubrication to the rotating shaft when it is used for nodding adjustment via the rotating shaft. This prevents excessive friction from causing the observation seat to jam or vibrate during prolonged adjustment. The rotation of the rotating shaft drives the swing rod to rotate synchronously, and causes the sliding column to slide along the inner wall of the arc groove, thus buffering the rotation of the damper body and achieving the effect of buffering the rotation of the observation seat. The connection of the oil inlet allows lubricating oil to be delivered into the annular tube, and with the opening of the oil inlet, the lubricating oil comes into contact with the surface of the rotating shaft, achieving the effect of lubricating the rotation of the rotating shaft.

[0012] Preferably, the outer wall of the connecting frame is provided with a first servo motor, the output end of the first servo motor is fixedly connected to a first gear, the outer wall of the first gear meshes with a second gear fixedly connected to the outer wall of the rotating shaft, and the outer wall of the connecting rod is fixedly connected to a first electric push rod fixedly connected to the outer wall of the telescopic rod.

[0013] Preferably, a second electric push rod is provided at the top of the connecting frame. One end of the second electric push rod is fixedly connected to a sliding rod that is slidably connected to the top of the connecting frame. A rotating rod that is rotatably connected to the top of the connecting frame is slidably connected to the outer wall of the sliding rod. The rotation center of the rotating rod is fixedly connected to a protective plate through a rotating shaft. The protective plate and the locking rod are configured to, when the microscope is not in use, improve the effect of simultaneously locking and fixing the observation seat while shielding and protecting the observation eyepiece, so that the observation seat remains in the state of last use. The second electric push rod is opened, which drives the sliding rod to slide along the inner wall of the sliding groove and simultaneously drives the sliding rod to slide along the inner wall of the limiting groove. At the same time, the rotation of the rotating rod causes the protective plate to flip. The movement of the sliding rod causes the connecting rod to slide along the inner wall of the first adjusting groove, so that the pulling rod rotates along the outer wall of the connecting frame. The rotation of the pulling rod causes the locking rod to slide synchronously along the inner walls of the telescopic groove and the second adjusting groove, so that the locking rod is inserted into the inner wall of the positioning groove, achieving the effect of locking and fixing the observation seat after use.

[0014] Preferably, the top of the connecting frame is provided with a sliding groove at the connection point with the sliding rod, the outer wall of the rotating rod is provided with a limiting groove at the connection point with the sliding rod, and the observation eyepiece is set on the flipping trajectory of the protective plate.

[0015] Preferably, the outer wall of the sliding rod is fixedly connected to a connecting rod that is slidably connected to the outer wall of the connecting frame, the outer wall of the connecting rod is slidably connected to a pulling rod that is rotatably connected to the outer wall of the connecting frame, and the outer wall of the pulling rod is slidably connected to a locking rod that is slidably connected to the outer wall of the connecting frame.

[0016] Preferably, the observation seat and the locking rod are slidably connected, and a positioning groove is provided at the connection between the outer wall of the observation seat and the locking rod. Two sets of locking rods are provided, and the positions of the two sets of locking rods are symmetrical about the central axis of the observation seat.

[0017] Preferably, the outer wall of the pull rod and the connection part of the connecting rod are provided with a first adjustment groove, the outer wall of the pull rod and the connection part of the locking rod are provided with a second adjustment groove, and the outer wall of the connecting frame and the connection part of the locking rod are provided with a telescopic groove.

[0018] The positions of the first adjustment groove and the second adjustment groove are equidistant from the rotation center of the pull rod.

[0019] Compared with the prior art, the beneficial effects of this invention are as follows:

[0020] 1. The lifting rod of this invention enables convenient adjustment of the height of the observation stand, the telescopic rod enables telescopic movement of the observation stand in the vertical position, the rotating frame enables adjustment of the horizontal angle of the observation stand, and the threaded slider enables fine-tuning of the horizontal position of the observation stand. At the same time, the rotating shaft enables vertical adjustment of the angle of the observation stand, allowing for multi-degree-of-freedom adjustment of the microscope objective lens.

[0021] 2. The swing rod, damper body, and oil inlet of this invention provide auxiliary buffering and self-lubrication for the rotating shaft when the second gear drives the observation seat for nodding adjustment via the rotating shaft. This prevents excessive friction during prolonged adjustment, which could cause the observation seat to jam or vibrate. The rotation of the rotating shaft drives the swing rod to rotate synchronously and causes the sliding column to slide along the inner wall of the arc groove, buffering the rotation of the damper body and achieving a buffering effect on the rotation of the observation seat. The connection of the oil inlet allows lubricating oil to be delivered into the annular pipe, and the opening of the oil inlet allows the lubricating oil to contact the surface of the rotating shaft, achieving a lubricating effect on the rotation of the rotating shaft.

[0022] 3. The protective plate and locking rod of this invention, when the microscope is not in use, in order to improve the effect of simultaneously locking and fixing the observation seat while shielding and protecting the observation eyepiece, so that the observation seat remains in the state of last use, the second electric push rod is opened, which drives the sliding rod to slide along the inner wall of the sliding groove, and simultaneously drives the sliding rod to slide along the inner wall of the limiting groove. At the same time, the rotation of the rotating rod causes the protective plate to flip, and the movement of the sliding rod causes the connecting rod to slide along the inner wall of the first adjusting groove, so that the pulling rod rotates along the outer wall of the connecting frame. The rotation of the pulling rod causes the locking rod to slide along the inner wall of the telescopic groove and the second adjusting groove, so that the locking rod is inserted into the inner wall of the positioning groove, achieving the effect of locking and fixing the observation seat after use. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the overall side view structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the rotating frame position distribution structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the connection structure between the threaded rod and the threaded slider of the present invention;

[0027] Figure 5 This is a schematic diagram of the connection structure between the first gear and the second gear of the present invention;

[0028] Figure 6 This is a schematic diagram of the connection structure between the swing rod and the damper body of the present invention;

[0029] Figure 7 This is a schematic diagram of the distribution structure of the annular pipe and the oil inlet of the present invention;

[0030] Figure 8 This is a schematic diagram of the sliding rod position distribution structure of the present invention;

[0031] Figure 9 This is a schematic diagram of the pull rod position distribution structure of the present invention;

[0032] Figure 10 For the present invention Figure 8 Enlarged structural diagram at point A in the diagram;

[0033] Figure 11 For the present invention Figure 9 A magnified structural diagram at point B in the diagram.

[0034] The labels in the attached diagram are:

[0035] 1. Moving frame; 2. Lifting rod; 3. Connecting rod; 4. First electric push rod; 5. Telescopic rod; 6. Observation display screen; 7. Rotating frame; 8. Connecting frame; 9. Observation seat; 10. Observation eyepiece; 11. First servo motor; 12. First gear; 13. Second gear; 14. Rotating shaft; 15. Connecting bearing; 16. Swing rod; 17. Sliding column; 18. Arc groove; 19. Damper body; 20. Lubricating oil box; 21. 1. Oil injection pipe; 22. Ring pipe; 23. Oil injection port; 24. Second servo motor; 25. Threaded rod; 26. Reciprocating groove; 27. Threaded slider; 28. Second electric push rod; 29. ​​Sliding rod; 30. Slide groove; 31. Rotating rod; 32. Limiting groove; 33. Protective plate; 34. Connecting rod; 35. Pulling rod; 36. First adjusting groove; 37. Locking rod; 38. Telescopic groove; 39. Second adjusting groove; 40. Positioning groove. Detailed Implementation

[0036] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0037] Example 1:

[0038] Please see Figures 1 to 11 This embodiment provides a multi-degree-of-freedom objective lens adjustment device for a surgical microscope, including a movable frame 1. A lifting rod 2 is slidably connected to the outer wall of the movable frame 1. A connecting rod 3 is fixedly connected to the top of the lifting rod 2. A telescopic rod 5 is slidably connected to the inner wall of the connecting rod 3. A rotating frame 7 is rotatably connected to one end of the telescopic rod 5. A threaded slider 27 is slidably connected to the outer wall of the rotating frame 7. A connecting frame 8 is fixedly connected to the outer wall of the threaded slider 27. An observation seat 9 is rotatably connected to the inner side wall of the connecting frame 8. An observation eyepiece 10 is provided on the outer wall of the observation seat 9.

[0039] The outer wall of the connecting frame 8 is provided with a connecting bearing 15. The inner side wall of the connecting bearing 15 is rotatably connected to a rotating shaft 14 that is fixedly connected to the outer wall of the observation seat 9. One end of the rotating shaft 14 is fixedly connected to a swing rod 16. One end of the swing rod 16 is fixedly connected to a sliding column 17 that is slidably connected to the outer wall of the connecting frame 8. The outer wall of the swing rod 16 is rotatably connected to a damper body 19 that is rotatably connected to the outer wall of the connecting frame 8.

[0040] The outer wall of the connecting frame 8 is provided with a lubricating oil box 20. The outer wall of the lubricating oil box 20 is fixedly connected to an oil injection pipe 21 via a connecting pump. One end of the oil injection pipe 21 is fixedly connected to an annular pipe 22 located inside the connecting bearing 15. The inner side wall of the connecting bearing 15 is provided with an oil injection port 23 that fits against the surface of the rotating shaft 14. The lifting rod 2 is provided to facilitate the adjustment of the height of the observation seat 9. The telescopic rod 5 is provided to allow the observation seat 9 to extend and retract in the vertical position. The rotating frame 7 is provided to adjust the horizontal angle of the observation seat 9. The threaded slider 27 is provided to allow for fine adjustment of the horizontal position of the observation seat 9. At the same time, the rotating shaft 14 is provided to allow for vertical adjustment of the angle of the observation seat 9, enabling the microscope objective to be used with multiple degrees of freedom.

[0041] like Figure 4 and Figure 8 As shown, a second servo motor 24 is provided on the outer wall of the rotating frame 7. The output end of the second servo motor 24 is fixedly connected to a threaded rod 25 that is threaded to the outer wall of the threaded slider 27. A reciprocating groove 26 is provided at the connection between the outer wall of the rotating frame 7 and the threaded slider 27, which is beneficial to achieve the effect of fine adjustment of the horizontal position of the observation seat 9 through the setting of the threaded rod 25.

[0042] like Figure 1 and Figure 4 As shown, the outer wall of the connecting rod 3 is equipped with an observation display screen 6, the rotating frame 7 moves in a horizontal rotation trajectory, and the observation seat 9 moves in a nodding rotation trajectory through the rotating shaft 14. This arrangement of the rotating frame 7 moving in a horizontal rotation trajectory and the observation seat 9 moving in a nodding rotation trajectory through the rotating shaft 14 facilitates the multi-degree-of-freedom adjustment of the observation seat 9.

[0043] like Figure 7 As shown, the oil inlets 23 are arranged in a ring about the central axis of the annular tube 22. The oil inlets 23 and the annular tube 22 are interconnected, which facilitates the self-lubricating effect of the rotating shaft 14 under continuous rotation by means of the annular arrangement of the oil inlets 23 about the central axis of the annular tube 22.

[0044] like Figure 5 As shown, a first servo motor 11 is provided on the outer wall of the connecting frame 8. A first gear 12 is fixedly connected to the output end of the first servo motor 11. A second gear 13, which is fixedly connected to the outer wall of the rotating shaft 14, meshes with the outer wall of the first gear 12. A first electric push rod 4, which is fixedly connected to the outer wall of the telescopic rod 5, is fixedly connected to the outer wall of the connecting rod 3. This facilitates the adjustment of the observation seat 9 by nodding angle through the setting of the first gear 12 and the second gear 13.

[0045] like Figures 8-10As shown, a second electric push rod 28 is provided on the top of the connecting frame 8. One end of the second electric push rod 28 is fixedly connected to a sliding rod 29 that is slidably connected to the top of the connecting frame 8. A rotating rod 31 that is rotatably connected to the top of the connecting frame 8 is slidably connected to the outer wall of the sliding rod 29. A protective plate 33 is fixedly connected to the rotation center of the rotating rod 31 through a rotating shaft. This is beneficial for the protective plate 33 to effectively prevent dust from entering the observation eyepiece 10 when it is not in use.

[0046] like Figure 10 As shown, a groove 30 is provided at the connection between the top of the connecting frame 8 and the sliding rod 29, and a limiting groove 32 is provided at the connection between the outer wall of the rotating rod 31 and the sliding rod 29. The observation eyepiece 10 is set on the flipping trajectory of the protective plate 33, which is conducive to achieving the effect of sliding and limiting the sliding rod 29 through the setting of the groove 30 and the limiting groove 32.

[0047] like Figure 9 and Figure 11 As shown, the outer wall of the sliding rod 29 is fixedly connected to the connecting rod 34, which is slidably connected to the outer wall of the connecting frame 8. The outer wall of the connecting rod 34 is slidably connected to the pulling rod 35, which is rotatably connected to the outer wall of the connecting frame 8. The outer wall of the pulling rod 35 is slidably connected to the locking rod 37, which is slidably connected to the outer wall of the connecting frame 8. This helps to achieve the effect of keeping the observation seat 9 in a fixed state when not in use by setting the locking rod 37.

[0048] like Figure 11 As shown, the observation seat 9 and the locking rod 37 are slidably connected, and the connection between the outer wall of the observation seat 9 and the locking rod 37 is provided with a positioning groove 40. There are two sets of locking rods 37, and the positions of the two sets of locking rods 37 are symmetrical about the central axis of the observation seat 9. This helps to improve the stability of the observation seat 9 when it is not in use by setting two sets of locking rods 37 with symmetrical positions about the central axis of the observation seat 9.

[0049] like Figure 11 As shown, a first adjustment groove 36 is provided at the connection between the outer wall of the pull rod 35 and the connecting rod 34, a second adjustment groove 39 is provided at the connection between the outer wall of the pull rod 35 and the locking rod 37, and a telescopic groove 38 is provided at the connection between the outer wall of the connecting frame 8 and the locking rod 37.

[0050] The positions of the first adjustment groove 36 and the second adjustment groove 39 are equidistant from the rotation center of the pull rod 35, which is beneficial to achieve the effect of driving the connecting rod 34 and the locking rod 37 to be used alternately by setting the positions of the first adjustment groove 36 and the second adjustment groove 39 equidistant from the rotation center of the pull rod 35.

[0051] Working principle:

[0052] like Figure 1-10As shown, when using this surgical microscope objective adjustment device, firstly, the lifting rod 2 allows for convenient adjustment of the height of the observation seat 9; the telescopic rod 5 allows for the telescopic movement of the observation seat 9 in its vertical position; the rotating frame 7 allows for adjustment of the horizontal angle of the observation seat 9; and the threaded slider 27 allows for fine-tuning of the horizontal position of the observation seat 9. Simultaneously, the rotating shaft 14 allows for vertical adjustment of the angle of the observation seat 9, enabling the microscope objective to be adjusted with multiple degrees of freedom.

[0053] Next, the arrangement of the swing rod 16, damper body 19, and oil inlet 23 allows the second gear 13 to provide auxiliary buffering and self-lubrication for the rotating shaft 14 when it drives the observation seat 9 to make a nodding adjustment via the rotating shaft 14. This prevents excessive friction from causing the observation seat 9 to jam or vibrate during long-term adjustment of the rotating shaft 14. The rotation of the rotating shaft 14 drives the swing rod 16 to rotate synchronously and causes the sliding column 17 to slide along the inner wall of the arc groove 18, thus buffering the rotation of the damper body 19 and achieving the effect of buffering the rotation of the observation seat 9. The connection of the oil inlet pipe 21 allows lubricating oil to be delivered into the annular pipe 22, and the opening of the oil inlet 23 allows the lubricating oil to contact the surface of the rotating shaft 14, achieving the effect of lubricating the rotation of the rotating shaft 14.

[0054] Finally, when the microscope is not in use, in order to improve the effect of simultaneously locking and fixing the observation base 9 while shielding and protecting the observation eyepiece 10, so that the observation base 9 remains in the state of last use, the second electric push rod 28 is opened, which drives the sliding rod 29 to slide along the inner wall of the sliding groove 30 and simultaneously drive the sliding rod 29 to slide along the inner wall of the limiting groove 32. At the same time, the rotation of the rotating rod 31 causes the protective plate 33 to flip. The movement of the sliding rod 29 causes the connecting rod 34 to slide along the inner wall of the first adjusting groove 36, so that the pulling rod 35 rotates along the outer wall of the connecting frame 8. The rotation of the pulling rod 35 causes the locking rod 37 to slide synchronously along the inner wall of the telescopic groove 38 and the second adjusting groove 39, so that the locking rod 37 is inserted into the inner wall of the positioning groove 40, achieving the effect of locking and fixing the observation base 9 after use.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A multi-degree-of-freedom objective lens adjustment device for a surgical microscope, comprising a movable frame (1), characterized in that: The outer wall of the movable frame (1) is slidably connected to a lifting rod (2), the top of the lifting rod (2) is fixedly connected to a connecting rod (3), the inner wall of the connecting rod (3) is slidably connected to a telescopic rod (5), one end of the telescopic rod (5) is rotatably connected to a rotating frame (7), the outer wall of the rotating frame (7) is slidably connected to a threaded slider (27), the outer wall of the threaded slider (27) is fixedly connected to a connecting frame (8), the inner side wall of the connecting frame (8) is rotatably connected to an observation seat (9), and the outer wall of the observation seat (9) is provided with an observation eyepiece (10). The outer wall of the connecting frame (8) is provided with a connecting bearing (15). The inner side wall of the connecting bearing (15) is rotatably connected to a rotating shaft (14) which is fixedly connected to the outer wall of the observation seat (9). One end of the rotating shaft (14) is fixedly connected to a swing rod (16). One end of the swing rod (16) is fixedly connected to a sliding column (17) which is slidably connected to the outer wall of the connecting frame (8). The outer wall of the swing rod (16) is rotatably connected to a damper body (19) which is rotatably connected to the outer wall of the connecting frame (8). The outer wall of the connecting frame (8) is provided with a lubricating oil box (20). The outer wall of the lubricating oil box (20) is fixedly connected to an oil injection pipe (21) via a connecting pump. One end of the oil injection pipe (21) is fixedly connected to an annular pipe (22) located inside the connecting bearing (15). The inner side wall of the connecting bearing (15) is provided with an oil injection port (23) that fits against the surface of the rotating shaft (14).

2. The surgical microscope multi-degree-of-freedom objective lens adjustment device according to claim 1, characterized in that: The outer wall of the rotating frame (7) is provided with a second servo motor (24), and the output end of the second servo motor (24) is fixedly connected to a threaded rod (25) that is threaded to the outer wall of the threaded slider (27). A reciprocating groove (26) is provided at the connection between the outer wall of the rotating frame (7) and the threaded slider (27).

3. The multi-degree-of-freedom objective lens adjustment device for a surgical microscope according to claim 1, characterized in that: The outer wall of the connecting rod (3) is provided with an observation display screen (6), the rotating frame (7) moves in a horizontal rotation trajectory, and the observation seat (9) moves in a nodding rotation trajectory through the rotating shaft (14).

4. The multi-degree-of-freedom objective lens adjustment device for a surgical microscope according to claim 1, characterized in that: The oil inlet (23) is arranged in a ring about the central axis of the annular pipe (22), and the oil inlet (23) and the annular pipe (22) are interconnected.

5. The surgical microscope multi-degree-of-freedom objective lens adjustment device according to claim 1, characterized in that: The outer wall of the connecting frame (8) is provided with a first servo motor (11), the output end of the first servo motor (11) is fixedly connected to a first gear (12), the outer wall of the first gear (12) meshes with a second gear (13) fixedly connected to the outer wall of the rotating shaft (14), and the outer wall of the connecting rod (3) is fixedly connected to a first electric push rod (4) fixedly connected to the outer wall of the telescopic rod (5).

6. The multi-degree-of-freedom objective lens adjustment device for a surgical microscope according to claim 1, characterized in that: The top of the connecting frame (8) is provided with a second electric push rod (28), one end of which is fixedly connected to a sliding rod (29) that is slidably connected to the top of the connecting frame (8). The outer wall of the sliding rod (29) is slidably connected to a rotating rod (31) that is rotatably connected to the top of the connecting frame (8). The rotation center of the rotating rod (31) is fixedly connected to a protective plate (33) through a rotating shaft.

7. The multi-degree-of-freedom objective lens adjustment device for a surgical microscope according to claim 6, characterized in that: The top of the connecting frame (8) is provided with a sliding groove (30) at the connection point with the sliding rod (29), and the outer wall of the rotating rod (31) is provided with a limiting groove (32) at the connection point with the sliding rod (29). The observation eyepiece (10) is set on the flipping trajectory of the protective plate (33).

8. The multi-degree-of-freedom objective lens adjustment device for a surgical microscope according to claim 6, characterized in that: The outer wall of the sliding rod (29) is fixedly connected to a connecting rod (34) that is slidably connected to the outer wall of the connecting frame (8). The outer wall of the connecting rod (34) is slidably connected to a pulling rod (35) that is rotatably connected to the outer wall of the connecting frame (8). The outer wall of the pulling rod (35) is slidably connected to a locking rod (37) that is slidably connected to the outer wall of the connecting frame (8).

9. The multi-degree-of-freedom objective lens adjustment device for a surgical microscope according to claim 8, characterized in that: The observation seat (9) and the locking rod (37) are slidably connected, and a positioning groove (40) is provided at the connection between the outer wall of the observation seat (9) and the locking rod (37). There are two sets of locking rods (37), and the positions of the two sets of locking rods (37) are symmetrical about the central axis of the observation seat (9).

10. A multi-degree-of-freedom objective lens adjustment device for a surgical microscope according to claim 8, characterized in that: The outer wall of the pull rod (35) and the connection part of the connecting rod (34) are provided with a first adjustment groove (36), the outer wall of the pull rod (35) and the connection part of the locking rod (37) are provided with a second adjustment groove (39), and the outer wall of the connecting frame (8) and the connection part of the locking rod (37) are provided with a telescopic groove (38). The positions of the first adjustment groove (36) and the second adjustment groove (39) are equidistant from the rotation center of the pull rod (35).

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