Multi-degree-of-freedom quick-release adjusting bracket for ophthalmic examination lens

Abstract

The invention belongs to the technical field of ophthalmic examination supports, and particularly relates to a multi-degree-of-freedom quick-release adjusting support for an ophthalmic examination lens, and the multi-degree-of-freedom quick-release adjusting support comprises a tightening mechanism and a first spherical universal joint mounted at one end of the tightening mechanism, and one end of the first spherical universal joint is connected with a first joint cylinder; the other end of the first joint cylinder is connected with a mechanical main arm, the other end of the mechanical main arm is connected with a rotating cylinder, the spherical universal joint structural design is adopted, 360-degree multi-direction accurate adjustment of the lens support can be achieved, a doctor can flexibly control the position of a lens only through simple hand operation, rapid and accurate positioning is achieved, the operation is simple, and the working efficiency is improved. The support is convenient to operate and compact in structure, has a reliable locking function, can effectively guarantee the stability of the lens after being adjusted, can be rapidly matched with ophthalmic examination lenses of different specifications, and effectively improves the operation convenience and examination accuracy in the eye examination process.

Description

Technical Field

[0001] The present invention belongs to the technical field of ophthalmic examination brackets, and particularly relates to a multi-degree-of-freedom quick-release adjustment bracket for an ophthalmic examination lens. Background Art

[0002] An ophthalmic examination bracket is a medical device used to assist in ophthalmic examinations. It is mainly used to fix the patient's head and eyes, so that the patient can maintain the correct position and a stable state during the examination, so that doctors can accurately perform various ophthalmic examinations, such as fundus examinations, intraocular pressure measurements, optometry, etc. By using an ophthalmic examination bracket, the accuracy and efficiency of the examination can be improved, and the examination errors caused by patient movement or improper position can be reduced; Traditional ophthalmic examination brackets are fixed by doctors' hands, which can only provide basic support for the examination lens and lack effective convenient adjustment. During operations such as fundus examinations, doctors need to hold the funduscope by hand or support it throughout the process. Manual operation has the defect of insufficient stability. Subtle tremors of the doctor's hand (amplitude > 0.3 mm) will cause the field of view of the funduscope to shift, reducing the observation clarity of key areas such as retinal blood vessels and macula, increasing the risk of misdiagnosis and missed diagnosis, and burdening the doctor's arm, affecting the health of the doctor's arm and wrist. It also poses a threat to the occupational health of medical staff, not only prolonging the patient's consultation time but also reducing the overall diagnosis and treatment efficiency. Summary of the Invention

[0003] The purpose of the present invention is to provide a multi-degree-of-freedom quick-release adjustment bracket for an ophthalmic examination lens, aiming to solve the problem that in the prior art, during operations such as fundus examinations, doctors need to hold the funduscope by hand or support it throughout the process, and manual operation has the defect of insufficient stability. Subtle tremors of the doctor's hand (amplitude > 0.3 mm) will cause the field of view of the funduscope to shift, reducing the observation clarity of key areas such as retinal blood vessels and macula, increasing the risk of misdiagnosis and missed diagnosis, and posing a threat to the occupational health of medical staff, not only prolonging the patient's consultation time but also reducing the overall diagnosis and treatment efficiency.

[0004] To achieve the above object, the present invention provides the following technical solution: A multi-degree-of-freedom quick-release adjustment bracket for an ophthalmic examination lens, comprising a tightening mechanism and a first spherical universal joint installed at one end of the tightening mechanism. One end of the first spherical universal joint is connected to a first joint cylinder, the other end of the first joint cylinder is connected to a mechanical main arm, the other end of the mechanical main arm is connected to a rotating cylinder, the bottom surface of the rotating cylinder is connected through a locking screw rod, the other end of the locking screw rod is connected to a locking knob, a connecting cylinder is connected to the side of the rotating cylinder, a mechanical sub-arm is connected to the surface of the connecting cylinder, the other end of the mechanical sub-arm is connected to a second joint cylinder, a second spherical universal joint is connected to the opening of the second joint cylinder, and a connecting rod is connected to the surface of the second spherical universal joint; A docking sleeve is connected to the surface of the connecting rod, a lens fixing bracket is connected to the docking sleeve, a lens is installed inside the lens fixing bracket, a docking rod is connected to one end of the connecting rod close to the docking sleeve, and a quick-release mechanism is arranged inside the docking sleeve.

[0005] Preferably, as a multi-degree-of-freedom quick-release adjustment bracket for an ophthalmic examination lens of the present invention, the quick-release mechanism includes a pressing block, a linkage plate, an upper limit spring, a limit post, a lower limit spring and a locking block, and a pressing block is connected to the opening at the surface of the docking sleeve.

[0006] Preferably, as a multi-degree-of-freedom quick-release adjustment bracket for an ophthalmic examination lens of the present invention, the bottom surface of the pressing block is connected to a linkage plate, an upper limit spring is connected to the inner wall of the linkage plate, a limit post is connected to the bottom surface of the linkage plate, a lower limit spring is sleeved on the surface of the limit post, and a locking block is connected to the bottom end of the inner wall of the linkage plate.

[0007] Preferably, as a multi-degree-of-freedom quick-release adjustment bracket for an ophthalmic examination lens of the present invention, the locking screw rod sequentially passes through the connecting cylinder and the rotating cylinder and is threadedly connected to the locking knob, and the first joint cylinder and the second joint cylinder are respectively threadedly tightened and connected to the mechanical main arm and the mechanical sub-arm.

[0008] Preferably, as a multi-degree-of-freedom quick-release adjustment bracket for an ophthalmic examination lens of the present invention, one ends of the upper limit spring and the lower limit spring relative to the linkage plate are both connected to the opening at the inner wall of the docking sleeve, the linkage plate forms an elastic linkage structure with the upper limit spring and the lower limit spring, and the locking block and the opening at the bottom surface of the docking rod form an engaging structure.

[0009] Preferably, as a multi-degree-of-freedom quick-release adjustment bracket for an ophthalmic examination lens of the present invention, the tightening mechanism includes a clamping plate, a rotating shaft, a locking plate and a locking screw, and the clamping plate is connected to the non-spherical end of the first spherical universal joint.

[0010] Preferably, for a multi-degree-of-freedom quick-release adjustment bracket for an ophthalmic examination lens according to the present invention, one end of the clamp plate is movably connected through a rotating shaft, a locking plate is connected to the surface of the rotating shaft, and the other end of the locking plate is connected through a locking screw.

[0011] Preferably, for a multi-degree-of-freedom quick-release adjustment bracket for an ophthalmic examination lens according to the present invention, a disassembly knob is threadedly connected to the surface of the docking end of the tightening mechanism near the first spherical universal joint. A fixed frame is provided on one side of the disassembly knob. The two ends of the fixed frame are slidably connected with telescopic plates. A linkage frame is connected to the side of the telescopic plate. An adjustment plate is movably connected to the inside of the linkage frame. One end of the adjustment plate is connected to an adjustment frame.

[0012] Preferably, for a multi-degree-of-freedom quick-release adjustment bracket for an ophthalmic examination lens according to the present invention, a guide block is connected to the inner wall of the fixed frame. A guide groove is provided on the surface of the telescopic plate near the guide block. The telescopic plate and the guide block form a sliding connection structure through the guide groove.

[0013] Preferably, for a multi-degree-of-freedom quick-release adjustment bracket for an ophthalmic examination lens according to the present invention, a fixed side plate is connected to the docking side of the telescopic plate, an adjustment side plate is connected to the docking side of the adjustment plate, a fixed screw is connected through the surface of the adjustment side plate, and a fixed nut is threadedly connected to the surface of the other end of the fixed screw.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: By adopting the spherical universal joint structure design, the present invention can realize 360-degree multi-directional precise adjustment of the lens bracket. Doctors can flexibly control the position of the lens only through simple hand operations, realizing rapid and accurate positioning. After the adjustment is in place, it can be conveniently released and fixed. The bracket is easy to operate, has a compact structure, and has a reliable locking function, which can effectively ensure the stability of the lens after adjustment and can quickly adapt to different specifications of ophthalmic examination lenses, effectively improving the operation convenience and examination accuracy during the eye examination process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 is a schematic bottom view structure diagram of the ophthalmic examination bracket of the present invention; Figure 2 is a schematic overall structure diagram of the ophthalmic examination bracket of the present invention; Figure 3 is a schematic connection structure diagram of the locking knob of the present invention; Figure 4Schematic diagram of the docking structure of the docking sleeve of the present invention; Figure 5 Schematic cross-sectional structure diagram of the docking sleeve of the present invention; Figure 6 Schematic diagram of the connection structure of the linkage plate of the present invention; Figure 7 Schematic diagram of the connection structure of the locking block of the present invention; Figure 8 Schematic diagram of the connection structure of the telescopic plate of the present invention; Figure 9 Schematic cross-sectional structure diagram of the fixed frame of the present invention.

[0016] In the figure: 1, tightening mechanism; 101, fixed frame; 102, telescopic plate; 103, linkage frame; 104, adjusting plate; 105, adjusting frame; 106, guiding block; 107, fixed side plate; 108, adjusting side plate; 109, fixed screw; 1010, fixed nut; 2, first spherical universal joint; 201, disassembly knob; 3, first joint cylinder; 4, mechanical main arm; 5, rotating cylinder; 6, locking screw rod; 7, locking knob; 8, connecting cylinder; 9, mechanical sub-arm; 10, second joint cylinder; 11, second spherical universal joint; 12, connecting rod; 13, docking sleeve; 14, lens fixing bracket; 15, lens; 16, docking rod; 17, pressing block; 18, linkage plate; 19, upper limit spring; 20, limit post; 21, lower limit spring; 22, locking block; 23, clamping plate; 24, rotating shaft; 25, locking plate; 26, locking screw. Detailed implementation manners

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0018] Please refer to Figures 1-7, the present invention provides the following technical solution: A multi-degree-of-freedom quick-release adjustment bracket for an ophthalmic examination lens, including a tightening mechanism 1 and a first spherical universal joint 2 installed at one end of the tightening mechanism 1. One end of the first spherical universal joint 2 is connected to a first joint cylinder 3, the other end of the first joint cylinder 3 is connected to a mechanical main arm 4, the other end of the mechanical main arm 4 is connected to a rotating cylinder 5, the bottom surface of the rotating cylinder 5 is connected through a locking screw rod 6, the other end of the locking screw rod 6 is connected to a locking knob 7, the side of the rotating cylinder 5 is connected to a connecting cylinder 8, the surface of the connecting cylinder 8 is connected to a mechanical sub-arm 9, the other end of the mechanical sub-arm 9 is connected to a second joint cylinder 10, and the opening of the second joint cylinder 10 is connected to a second spherical universal joint 11, and the surface of the second spherical universal joint 11 is connected to a connecting rod 12; The surface of the connecting rod 12 is connected to a docking sleeve 13, the docking sleeve 13 is connected to a lens fixing bracket 14, a lens 15 is installed inside the lens fixing bracket 14, and one end of the connecting rod 12 close to the docking sleeve 13 is connected to a docking rod 16, and a quick-release mechanism is provided inside the docking sleeve 13.

[0019] Preferably: The quick-release mechanism includes a pressing block 17, a linkage plate 18, an upper limit spring 19, a limit post 20, a lower limit spring 21 and a locking block 22, and a pressing block 17 is connected to the opening on the surface of the docking sleeve 13.

[0020] Preferably: The bottom surface of the pressing block 17 is connected to a linkage plate 18, the inner wall of the linkage plate 18 is connected to an upper limit spring 19, the bottom surface of the linkage plate 18 is connected to a limit post 20, a lower limit spring 21 is sleeved on the surface of the limit post 20, and the bottom end of the inner wall of the linkage plate 18 is connected to a locking block 22.

[0021] Preferably: The locking screw rod 6 passes through the connecting cylinder 8 and the rotating cylinder 5 in sequence and is threadedly connected to the locking knob 7, and the first joint cylinder 3 and the second joint cylinder 10 are respectively threadedly tightened and connected to the mechanical main arm 4 and the mechanical sub-arm 9.

[0022] Preferably: One ends of the upper limit spring 19 and the lower limit spring 21 relative to the linkage plate 18 are both connected to the opening on the inner wall of the docking sleeve 13, the linkage plate 18 forms an elastic linkage structure with the upper limit spring 19 and the lower limit spring 21, and the locking block 22 and the opening on the bottom surface of the docking rod 16 form a fitting structure.

[0023] During specific use, first, the tightening mechanism 1 is assembled on the cylindrical pipe fitting to prevent the bracket from loosening or shifting. The first joint cylinder 3 is rotated and adjusted at the first spherical universal joint 2 to drive the mechanical main arm 4 to adjust the angle. Then, the connection between the rotating cylinder 5 and the connecting cylinder 8 is rotated and adjusted, and tightened by the locking knob 7 to ensure that the mechanical sub-arm 9 is locked and fixed after the angle adjustment. Thus, it is convenient to adjust the angle of the lens 15 inside the head fixing bracket 14 by 360 degrees and accurately place it on the patient's eye for subsequent precise examination. At the same time, it liberates the doctor's hands and avoids the need for long-term hand-holding during the examination. Additionally, by pressing the pressing block 17 on the surface of the docking sleeve 13, the linkage plate 18 at the bottom of the pressing block 17 is driven to move downward inside the docking sleeve 13, and at the same time, the upper limit spring 19 and the lower limit spring 21 are compressed. At this time, the locking block 22 on the inner wall of the linkage plate 18 disengages from the opening on the bottom surface of the docking rod 16, thereby facilitating the quick removal of the docking sleeve 13 at one end of the connecting rod 12, and further facilitating the disassembly and replacement of the lens 15 and the docking sleeve 13 as a whole. Embodiment

[0024] Please refer to Figure 2 , preferably: The tightening mechanism 1 includes a clamping plate 23, a rotating shaft 24, a locking plate 25, and a locking screw 26. The clamping plate 23 is connected to the non-spherical end of the first spherical universal joint 2.

[0025] Preferably: One end of the clamping plate 23 is movably connected through a rotating shaft 24. A locking plate 25 is connected to the surface of the rotating shaft 24, and a locking screw 26 is connected through the other end of the locking plate 25.

[0026] During specific use, by clamping and surrounding the clamping plate 23 and the locking plate 25 on the cylindrical pipe, and then passing the locking screw 26 through the clamping plate 23 and the locking plate 25, the device can be quickly and firmly installed on the cylindrical pipe to prevent the device from loosening or shifting.

[0027] Embodiment Three: The replacement structure and specific replacement method for the tightening mechanism 1.

[0028] Please refer to Figures 8-9 , preferably: A disassembly knob 201 is threadedly connected to the surface of the docking end of the tightening mechanism 1 close to the first spherical universal joint 2. A fixed frame 101 is provided on one side of the disassembly knob 201. Telescopic plates 102 are slidably connected to the openings at both ends of the fixed frame 101. A linkage frame 103 is connected to the side of the telescopic plate 102. An adjusting plate 104 is movably connected to the inside of the linkage frame 103, and an adjusting frame 105 is connected to one end of the adjusting plate 104.

[0029] Preferably, a guide block 106 is connected to the inner wall of the fixed frame 101, and a guide groove is formed on the surface of the telescopic plate 102 close to the guide block 106. The telescopic plate 102 and the guide block 106 form a sliding connection structure through the guide groove.

[0030] Preferably, a fixed side plate 107 is connected to the docking side of the telescopic plate 102, an adjusting side plate 108 is connected to the docking side of the adjusting plate 104, a fixing screw 109 penetrates through the surface of the adjusting side plate 108, and a fixing nut 1010 is threadedly connected to the surface of the other end of the fixing screw 109.

[0031] During specific use, when the bracket needs to be clamped on a rectangular pipe column, at this time, by reversing the disassembly knob 201, the original clamp-type tightening mechanism 1 is removed and replaced. Then, the fixed frame 101 and the adjusting frame 105 are docked on the rectangular pipe column. It should be noted that before the adjustment frame 105 is assembled, only the adjusting side plates 108 at both ends of the adjustment frame 105 need to be placed obliquely inside the linkage frame 103. Then, the telescopic plate 102 and the adjusting plate 104 are extended horizontally to adjust the adaptation size between them and the rectangular pipe column. Then, the fixing screw 109 is passed through the fixed side plate 107 and the adjusting side plate 108 and then threadedly tightened with the fixing nut 1010, thereby facilitating the rapid assembly and stability of the tightening mechanism 1 that can be docked with the rectangular pipe column, and improving the practicability of the bracket for ophthalmic examination.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A multi-degree-of-freedom quick-release adjustment bracket for an ophthalmic examination lens, comprising a clamping mechanism (1) and a first ball-type universal joint (2) mounted at one end of the clamping mechanism (1), characterized in that: One end of the first ball-type universal joint (2) is connected to a first joint cylinder (3), the other end of the first joint cylinder (3) is connected to a mechanical main arm (4), the other end of the mechanical main arm (4) is connected to a rotating cylinder (5), the bottom surface of the rotating cylinder (5) is penetrated by a locking screw (6), the other end of the locking screw (6) is connected to a locking knob (7), the side of the rotating cylinder (5) is connected to a connecting cylinder (8), the surface of the connecting cylinder (8) is connected to a mechanical auxiliary arm (9), the other end of the mechanical auxiliary arm (9) is connected to a second joint cylinder (10), the opening of the second joint cylinder (10) is connected to a second ball-type universal joint (11), and the surface of the second ball-type universal joint (11) is connected to a connecting rod (12); The surface of the connecting rod (12) is connected to a docking sleeve (13), the docking sleeve (13) is connected to a lens fixing bracket (14), a lens (15) is installed inside the lens fixing bracket (14), one end of the connecting rod (12) close to the docking sleeve (13) is connected to a docking rod (16), and a quick release mechanism is arranged inside the docking sleeve (13).

2. The multi-degree-of-freedom quick-release adjustment bracket for an ophthalmic examination lens according to claim 1, characterized in that: The quick-release mechanism comprises a pressing block (17), a linkage plate (18), an upper limit spring (19), a limit column (20), a lower limit spring (21) and a locking block (22); the pressing block (17) is connected to an opening on the surface of the connecting sleeve (13).

3. The multi-degree-of-freedom quick-release adjustment bracket for an ophthalmic examination lens according to claim 2, characterized in that: The bottom surface of the pressing block (17) is connected to a linkage plate (18), the inner wall of the linkage plate (18) is connected to an upper limit spring (19), the bottom surface of the linkage plate (18) is connected to a limit column (20), the surface of the limit column (20) is sleeved with a lower limit spring (21), and the bottom end of the inner wall of the linkage plate (18) is connected to a locking block (22).

4. The multi-degree-of-freedom quick-release adjustment bracket for an ophthalmic examination lens according to claim 3, characterized in that: The locking screw (6) passes through the connecting tube (8) and the rotating tube (5) in sequence and is threadedly connected to the locking knob (7); the first joint tube (3) and the second joint tube (10) are respectively threadedly connected to the mechanical main arm (4) and the mechanical auxiliary arm (9).

5. The multi-degree-of-freedom quick-release adjustment bracket for an ophthalmic examination lens according to claim 2, characterized in that: One end of the upper limit spring (19) and the lower limit spring (21) relative to the linkage plate (18) is connected to the opening of the inner wall of the connecting sleeve (13); the linkage plate (18) forms an elastic linkage structure with the upper limit spring (19) and the lower limit spring (21); and the locking block (22) forms a chimeric structure with the opening on the bottom surface of the docking rod (16).

6. The multi-degree-of-freedom quick-release adjustment bracket for an ophthalmic examination lens according to claim 1, characterized in that: The clamping mechanism (1) comprises a clamping plate (23), a rotating shaft (24), a locking plate (25) and a locking screw (26); the clamping plate (23) is connected to the non-spherical end of the first spherical universal joint (2).

7. The multi-degree-of-freedom quick-release adjustment bracket for an ophthalmic examination lens according to claim 6, characterized in that: One end of the clamp plate (23) is penetrated and movably connected to a rotating shaft (24), a surface of the rotating shaft (24) is connected to a locking plate (25), and the other end of the locking plate (25) is penetrated and connected to a locking screw (26).

8. The multi-degree-of-freedom quick-release adjustment bracket for an ophthalmic examination lens according to claim 1, characterized in that: The surface of the butt end of the tightening mechanism (1) close to the first ball-type universal joint (2) is threadedly connected to a disassembly knob (201); a fixed frame (101) is provided on one side of the disassembly knob (201); openings at both ends of the fixed frame (101) are slidably connected to telescopic plates (102); the side of the telescopic plate (102) is connected to a linkage frame (103); the inner side of the linkage frame (103) is movably connected to an adjustment plate (104); and one end of the adjustment plate (104) is connected to an adjustment frame (105).

9. The multi-degree-of-freedom quick-release adjustment bracket for an ophthalmic examination lens according to claim 8, characterized in that: The inner wall of the fixed frame (101) is connected to a guide block (106), a guide groove is provided on the surface of the telescopic plate (102) close to the guide block (106), and the telescopic plate (102) forms a sliding connection structure with the guide block (106) via the guide groove.

10. The multi-degree-of-freedom quick-release adjustment bracket for an ophthalmic examination lens according to claim 8, characterized in that: The butt joint side of the telescopic plate (102) is connected to a fixed side plate (107), the butt joint side of the adjustment plate (104) is connected to an adjustment side plate (108), a fixing screw (109) is connected through the surface of the adjustment side plate (108), and a fixing nut (1010) is threadedly connected to the other end surface of the fixing screw (109).

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