Rotating shaft structure of medical lamp

Abstract

The utility model relates to a medical lamp rotating shaft structure which comprises a rotating assembly, a fixing cylinder, an elastic damping screw, a gear point screw and a limiting piece, a rotating cavity is formed in the fixing cylinder, and the rotating assembly is rotatably arranged in the rotating cavity; the rotating assembly is provided with an annular groove, the stop point screw is arranged in the annular groove, and the limiting piece penetrates through the side wall face of the fixing cylinder to enter the annular groove. The elastic damping screw penetrates through the side wall face of the fixing cylinder and is connected to the rotating assembly in a pushing mode.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and more particularly to a rotating shaft structure for a medical lamp. Background Technology

[0002] Medical lighting fixtures are indispensable equipment in the medical field, such as surgical shadowless lamps, dental lamps, and medical examination lamps. Medical lighting fixtures are typically designed to rotate 360 ​​degrees, allowing doctors to adjust the angle and position of the light as needed during surgery. However, frequent 360-degree rotation can lead to wear and tear on mechanical parts, causing malfunctions and reducing the lifespan of the lighting fixture. When the lamp rotates, the weight of the lamp head can easily cause over-adjustment, deviating from the optimal position, or the lamp head may become unstable, thus affecting the normal use by medical staff and interfering with the surgical procedure. Utility Model Content

[0003] To solve the above problems, this utility model provides a rotating shaft structure for medical lamps.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The present invention relates to a rotating shaft structure for a medical lamp, comprising a rotating component, a fixed cylinder, a tightening damping screw, a stop screw, and a limiting member. The fixed cylinder has a rotating cavity, and the rotating component is rotatably disposed within the rotating cavity. The rotating component has an annular groove, the stop screw is disposed within the annular groove, and the limiting member penetrates the side wall of the fixed cylinder and enters the annular groove. The tightening damping screw penetrates the side wall of the fixed cylinder and is slidably connected to the rotating component.

[0005] Preferably, the side wall of the fixed cylinder is provided with a limiting hole communicating with the rotating cavity, and the limiting member passes through the limiting hole and enters the annular groove.

[0006] Preferably, the rotating assembly includes an aluminum alloy rotating shaft, a retaining ring, and an oil-impregnated bearing. The aluminum alloy rotating shaft, in conjunction with the oil-impregnated bearing, is rotatably disposed within the rotating cavity. The retaining ring, in conjunction with the aluminum alloy rotating shaft, is disposed at the opening of the rotating cavity, and the retaining ring limits the axial movement of the aluminum alloy rotating shaft.

[0007] Preferably, the side wall of the fixed cylinder is provided with a tightening hole communicating with the rotating cavity, and the tightening damping screw passes through the tightening hole and contacts the oil-impregnated bearing.

[0008] Preferably, the annular groove is disposed on the aluminum alloy rotating shaft, and the annular groove is distributed in a ring around the side wall of the aluminum alloy rotating shaft.

[0009] Preferably, the bottom of the aluminum alloy rotating shaft is provided with a stop point mounting hole, the stop point mounting hole passes through the aluminum alloy rotating shaft and connects to the annular groove, and the stop point screw passes through the stop point mounting hole and enters the annular groove.

[0010] Preferably, it also includes a lamp holder, and the aluminum alloy rotating shaft has a lamp holder placement cavity, which is connected to the rotating cavity, and the lamp holder is disposed in the lamp holder placement cavity.

[0011] The beneficial effects of this utility model are as follows: This utility model relates to a rotating shaft structure for medical lamps. This utility model uses an aluminum alloy rotating shaft with an oil-impregnated bearing, which is rotatably mounted on a fixed cylinder, resulting in a compact structure. The aluminum alloy rotating shaft, being made of aluminum alloy, possesses excellent wear resistance and stability, effectively improving its service life.

[0012] In this invention, medical personnel can rotate the aluminum alloy rotating shaft to adjust the lamp head, and the limiting component blocks the rotation. The lamp head can rotate smoothly under load for less than 360 degrees, which limits the rotation range of the light to a certain extent. This reduces the risk of changing the optimal position of the light due to improper operation, improves the stability of the lamp head, reduces operational errors, and meets different surgical needs.

[0013] Meanwhile, this utility model can also adjust the rotational resistance of the rotating component by tightening and loosening the damping screw through the fixed cylinder and pressing it against the oil-impregnated bearing. This ensures that the lamp head can move easily and remain stable when needed, while also reducing wear caused by frequent rotation and improving service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the medical lamp of this utility model.

[0015] Figure 2 This is a cross-sectional view of the internal structure of the medical lamp of this utility model.

[0016] Figure 3 This is a structural schematic diagram of the fixed cylinder of this utility model.

[0017] Figure 4 This is a cross-sectional structural diagram of the fixed cylinder of this utility model.

[0018] Figure 5 This is a schematic diagram of the disassembled structure of the rotating component of this utility model.

[0019] Figure 6 This is a schematic diagram of the overall structure of the rotating component of this utility model.

[0020] Figure 7 This is a schematic diagram of the internal structure of this utility model.

[0021] Figure 8 This is a schematic diagram of the internal structure of the rotating component of this utility model after it has rotated.

[0022] Figure Labels

[0023] 1. Support rod;

[0024] 2. Rotating assembly; 21. Aluminum alloy rotating shaft; 22. Snap ring; 23. Oil-impregnated bearing; 24. Annular groove; 25. Stop mounting hole; 26. Lamp holder placement cavity; 27. Snap ring groove;

[0025] 3. Fixing cylinder; 31. Rotating cavity; 32. Tightening hole; 33. Limiting hole; 34. Lens mounting port; 35. Protective lens;

[0026] 4. Tightening damping screw; 5. Stop screw; 6. Limiting component. Detailed Implementation

[0027] Please see Figure 1-8 As shown, this utility model relates to a rotating shaft structure for a medical lamp, including a support rod 1, a rotating component 2, a fixed cylinder 3, a tightening / loosening damping screw 4, a stop screw 5, and a limiting member 6. The support rod 1 is connected to the fixed cylinder 3, and the fixed cylinder 3 has a rotating cavity 31 for the rotating component 2, which is rotatably installed within the rotating cavity 31. The fixed cylinder 3 has a tightening hole 32 and a limiting hole 33 communicating with the rotating cavity 31.

[0028] The rotating component 2 is provided with an annular groove 24, the stop screw 5 is disposed in the annular groove 24, and the limiting member 6 passes through the limiting hole 33 and enters the annular groove 24. When the rotating component 2 rotates, the rotating component 2 drives the stop screw 5 to rotate. The limiting member 6 blocks the stop screw 5 and limits the rotation range of the rotating component 2.

[0029] The damping screw 4 passes through the loosening hole 32 and contacts the rotating component 2. The damping screw 4 pushes the rotating component 2 closer to the wall of the rotating cavity 31, thereby preventing the rotating component 2 from rotating and adjusting the tightness of the rotating component 2.

[0030] In this embodiment, the rotating assembly 2 includes an aluminum alloy rotating shaft 21, a retaining ring 22, and an oil-impregnated bearing 23. The oil-impregnated bearing 23 and the retaining ring 22 are respectively sleeved on the aluminum alloy rotating shaft 21, with the retaining ring 22 positioned above the oil-impregnated bearing 23. The aluminum alloy rotating shaft 21, in conjunction with the oil-impregnated bearing 23, is rotatably disposed within the rotating cavity 31. The retaining ring 22, in conjunction with the aluminum alloy rotating shaft 21, is disposed at the opening of the rotating cavity 31, limiting the axial movement of the aluminum alloy rotating shaft 21 and preventing it from moving axially, thus preventing the aluminum alloy rotating shaft 21 from falling off into the fixed cylinder 3.

[0031] Furthermore, the aluminum alloy rotating shaft 21 is provided with a snap ring groove 27, which is distributed in a ring on the aluminum alloy rotating shaft 21, and the snap ring 22 is sleeved in the snap ring groove 27.

[0032] Furthermore, the annular groove 24 is disposed on the aluminum alloy rotating shaft 21, and the annular groove 24 is distributed in a ring on the aluminum alloy rotating shaft 21, located below the oil-impregnated bearing 23. The bottom of the aluminum alloy rotating shaft 21 is provided with a stop mounting hole 25, which penetrates the bottom of the aluminum alloy rotating shaft 21 and connects to the annular groove 24. The stop screw 5 passes through the stop mounting hole 25 and enters the annular groove 24. In use, medical personnel can rotate the aluminum alloy rotating shaft 21 to drive the stop screw 5 to rotate synchronously. During rotation, the aluminum alloy rotating shaft 21 drives the stop screw 5 to rotate towards the limiting member 6. When the stop screw 5 contacts the limiting member 6, the aluminum alloy rotating shaft 21 cannot continue to rotate, thereby limiting the rotation range of the aluminum alloy rotating shaft 21.

[0033] Furthermore, it also includes a lamp head (not shown in the figure). The aluminum alloy rotating shaft 21 has a lamp head placement cavity 26 for placing the lamp head, and the lamp head placement cavity 26 is connected to the rotating cavity 31. The lamp head is set in the lamp head placement cavity 26. The bottom of the fixing cylinder 3 has a lens mounting port 34, which is connected to the rotating cavity 31. A protective lens 35 for light to pass through is provided at the lens mounting port 34. This utility model achieves smooth rotation of less than 360 degrees under load by rotating the aluminum alloy rotating shaft 21 with the lamp head, flexibly adjusting the angle and range of light to meet different surgical needs.

[0034] Furthermore, the tightening damping screw 4 passes through the tightening hole 32 and abuts against the oil-impregnated bearing 23. The tightening damping screw 4 pushes the oil-impregnated bearing 23, causing it to come closer to the wall of the rotating cavity 31, creating a damping sensation on the oil-impregnated bearing 23. This controls the tightness of the rotating component 2. Medical staff can turn the tightening damping screw 4 according to the needs of the operation to control the tightening damping screw 4 to push the oil-impregnated bearing 23, thus making it easier to adjust the lamp head to maintain a stable stop.

[0035] This utility model relates to a rotating shaft structure for a medical lamp. The structure features an aluminum alloy rotating shaft 21 rotatably mounted on a fixed cylinder 3 using an oil-impregnated bearing 23, resulting in a compact design. The aluminum alloy rotating shaft 21, made of aluminum alloy, possesses excellent wear resistance and stability, effectively improving its service life.

[0036] In this invention, medical personnel can rotate the aluminum alloy rotating shaft 21 to adjust the lamp head, and the lamp head can be smoothly rotated under load by the limiting member 6. This limits the rotation range of the light to a certain extent, thereby reducing the risk of changing the optimal position of the light due to improper operation, improving the stability of the lamp head, reducing operational errors, and meeting different surgical needs.

[0037] Meanwhile, this utility model can also adjust the rotational resistance of the rotating component 2 by tightening and loosening the damping screw 4 through the fixed cylinder 3 and abutting against the oil-impregnated bearing 23, so as to ensure that the lamp head can move easily and remain stable when needed, while also reducing wear caused by frequent rotation and improving service life.

[0038] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A rotating shaft structure for a medical lamp, characterized in that: The device includes a rotating assembly, a fixed cylinder, a tension / damping screw, a stop screw, and a limiting component. The fixed cylinder has a rotating cavity, and the rotating assembly is rotatably disposed within the rotating cavity. The rotating assembly has an annular groove, the stop screw is disposed within the annular groove, and the limiting component penetrates the side wall of the fixed cylinder and enters the annular groove. The tension / damping screw penetrates the side wall of the fixed cylinder and is slidably connected to the rotating assembly.

2. The rotating shaft structure for a medical lamp according to claim 1, characterized in that: The side wall of the fixed cylinder is provided with a limiting hole that communicates with the rotating cavity, and the limiting member passes through the limiting hole and enters the annular groove.

3. The rotating shaft structure for a medical lamp according to claim 1, characterized in that: The rotating assembly includes an aluminum alloy rotating shaft, a retaining ring, and an oil-impregnated bearing. The aluminum alloy rotating shaft, in conjunction with the oil-impregnated bearing, is rotatably disposed within the rotating cavity. The retaining ring, in conjunction with the aluminum alloy rotating shaft, is disposed at the opening of the rotating cavity, and the retaining ring limits the axial movement of the aluminum alloy rotating shaft.

4. The rotating shaft structure for a medical lamp according to claim 3, characterized in that: The side wall of the fixed cylinder is provided with a tightening hole that communicates with the rotating cavity, and the tightening damping screw passes through the tightening hole and contacts the oil-impregnated bearing.

5. The rotating shaft structure for a medical lamp according to claim 3, characterized in that: The annular groove is disposed on the aluminum alloy rotating shaft, and the annular groove is distributed in a ring around the side wall of the aluminum alloy rotating shaft.

6. The rotating shaft structure for a medical lamp according to claim 5, characterized in that: The bottom of the aluminum alloy rotating shaft is provided with a stop point mounting hole, which passes through the aluminum alloy rotating shaft and connects to the annular groove. The stop point screw passes through the stop point mounting hole and enters the annular groove.

7. The rotating shaft structure for a medical lamp according to claim 3, characterized in that: It also includes a lamp head, and the aluminum alloy rotating shaft has a lamp head placement cavity, which is connected to the rotating cavity, and the lamp head is placed in the lamp head placement cavity.

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