A microscope lens zoom adjustment mechanism

Abstract

This utility model discloses a microscope lens zoom adjustment mechanism, relating to the field of dental limiting devices. It includes a support base, an upper lens, a lower lens, and a zoom lens. The upper and lower lenses are respectively fixed to both ends of the support base. An adjustment component is provided between the top and bottom ends of the support base. The zoom lens is moved between the upper and lower lenses by the adjustment component. The upper, zoom, and lower lenses are coaxial. This application has the advantage of achieving adjustment at any magnification within a certain range, thus having a wider range of applications.

Description

Technical Field

[0001] This utility model relates to the field of dental limiting devices, and in particular to a microscope lens zoom adjustment mechanism. Background Technology

[0002] Current microscopes typically use fixed magnification adjustment, meaning they can only switch between fixed magnifications, such as x1, x2, x4, etc. This is essentially a type of adjustable magnification with limits. In the increasingly sophisticated environment of dental surgery, as magnification requirements grow, the limitations of adjustable variable magnification microscopes become more pronounced. One limitation is the inability to achieve arbitrary magnification adjustments, thus narrowing their application scenarios. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a microscope lens zoom adjustment mechanism.

[0004] This utility model is achieved by the following technical solution: a microscope lens zoom body adjustment mechanism, including a support base, an upper lens, a lower lens and a zoom lens, wherein the upper lens and the lower lens are respectively fixed at both ends of the support base, and an adjustment component is provided between the first end and the bottom end of the support base, and the zoom lens is driven by the adjustment component to move between the upper lens and the lower lens, wherein the upper lens, the zoom lens and the lower lens are coaxial.

[0005] The adjustment assembly includes an adjustment knob fixed to the end of the support base. A lifting part is provided between the top and bottom ends of the support base. Rotating the adjustment knob drives the lifting part to move up and down between the top and bottom ends of the support base. The zoom lens is fixed on the lifting part.

[0006] The support base includes a platform and a bottom surface, which are connected by a support plate. Mounting holes are opened on the platform and the bottom surface respectively. The upper lens is fixed in the mounting hole on the platform and the lower lens is fixed in the mounting hole on the bottom surface. The adjustment knob is located at the edge of the platform and the lifting part is located between the platform and the bottom surface.

[0007] The adjustment knob includes a rotating column, and a transmission assembly is sleeved on the rotating column. When the rotating column rotates, it drives the lifting part to rise and fall through the transmission assembly.

[0008] The transmission assembly includes a main guide wheel sleeved and fixed on the rotating column, and an auxiliary guide wheel rotatably connected at the edge of the platform. One end of the auxiliary guide wheel meshes with the main guide wheel, and the other end of the auxiliary guide wheel meshes with the lifting part for transmission.

[0009] The lifting unit includes a main lifting column and an auxiliary lifting column rotatably connected between the platform and the bottom surface. A lifting platform is sleeved on the main lifting column and the auxiliary lifting column. The zoom lens is mounted on the lifting platform. A guide pin extends from one side of the lifting platform toward the main lifting column. A spiral groove is opened on the main lifting column corresponding to the position of the guide column. The guide pin is inserted into the spiral groove. A transmission wheel is sleeved and fixed at the end of the main lifting column and meshes with the transmission assembly.

[0010] Compared to existing technologies, the variable magnification body of this invention can drive the main lifting column to rotate when adjusting the magnification by rotating the rotating column. When the main lifting column rotates, the spiral groove on it rotates accordingly, thereby driving the guide pin to rise and fall. During the lifting process, the auxiliary lifting column of the entire lifting platform is limited, so that the entire lifting platform can only be raised and lowered vertically, thus realizing the stepless adjustment of the entire variable magnification body, and thus realizing the adjustment of any magnification within a certain range, making it more widely used. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the variable magnification adjustment mechanism in this utility model. Figure 1 ;

[0012] Figure 2 This is a schematic diagram of the variable magnification adjustment mechanism in this utility model. Figure 2 ;

[0013] In the diagram: 1. Support base; 11. Platform; 12. Bottom surface; 13. Support plate; 2. Upper lens; 3. Lower lens; 4. Zoom lens; 5. Adjustment assembly; 51. Rotating column; 52. Transmission assembly; 521. Main guide wheel; 522. Auxiliary guide wheel; 53. Lifting unit; 531. Main lifting column; 532. Auxiliary lifting column; 533. Lifting platform; 534. Guide pin; 535. Spiral groove. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0015] Reference Figure 1-2A microscope lens zoom adjustment mechanism includes a support base, an upper lens, a lower lens, and a zoom lens. The upper and lower lenses are fixed to both ends of the support base. In this embodiment, the support base includes a platform and a bottom surface, connected by a support plate. Mounting holes are formed on both the platform and the bottom surface. The upper lens is fixed in the mounting hole on the platform, and the lower lens is fixed in the mounting hole on the bottom surface. An adjustment knob is located at the edge of the platform, and an adjustment assembly is located between the platform and the bottom surface. Specifically, an adjustment assembly is provided between the top and bottom ends of the support base. The zoom lens is moved between the upper and lower lenses by the adjustment assembly, i.e., the zoom lens reciprocates between the top and bottom ends of the support base. During the movement, the upper lens, zoom lens, and lower lens are coaxial. By adjusting the distance between the zoom lens and the upper and lower lenses through the movement of the zoom lens, the magnification can be flexibly adjusted within a certain range according to the actual usage scenario, thereby expanding the application range.

[0016] In this embodiment, the zoom lens is mounted on the lifting unit. The lifting unit includes a main lifting column and an auxiliary lifting column rotatably connected between the platform and the bottom surface. Only the main lifting column can rotate; the auxiliary lifting column simply has a lifting platform fitted onto both the main and auxiliary lifting columns. The zoom lens is mounted on the lifting platform. A guide pin extends from the side of the lifting platform facing the main lifting column. A spiral groove is formed on the main lifting column corresponding to the guide pin's position, and the guide pin is inserted into the spiral groove. A transmission wheel is fitted and fixed to the end of the main lifting column for engagement with the adjustment component. That is, when the adjustment component rotates, it drives the main lifting column to rotate, which in turn pushes the guide pin along the spiral groove. The lifting of the guide pin can be achieved by rotating the adjustment component forward or backward. The guide pin is fixed to the lifting platform, thus driving the lifting platform to rise and fall. During the lifting process, the auxiliary lifting column only serves as a limit, preventing the lifting platform from rotating along with it. This allows the entire lifting platform to only move vertically, thus achieving stepless adjustment of the entire zoom lens and enabling adjustment to any magnification within a certain range, broadening its application range.

[0017] In this embodiment, the adjustment assembly includes an adjustment knob fixed to the end of the support base. The adjustment knob includes a rotating column, which is inserted perpendicularly to the main lifting column at the edge of the platform. A transmission assembly is sleeved on the rotating column. The transmission assembly includes a main guide wheel sleeved and fixed on the rotating column. A guide wheel is rotatably connected to the edge of the platform. One end of the guide wheel meshes with the main guide wheel, and the other end of the guide wheel meshes with the lifting unit for transmission. In this application, the main guide wheel is a sector gear, and one end of the guide wheel is an independent sector gear meshing with the sector gear. The guide wheel can be rotated by the meshing transmission of the two sector gears. The other end of the guide wheel is a regular gear used to transmit power to the transmission wheel on the main lifting column. Corresponding to this implementation, the transmission wheel can be the same regular gear for meshing. That is, only the rotating column needs to be rotated to realize the movement of the zoom lens, thereby realizing stepless adjustment of the entire zoom body, and thus realizing adjustment of any magnification within a certain range, thus expanding the application range.

[0018] Compared to existing technologies, the variable magnification body of this invention can drive the main lifting column to rotate when adjusting the magnification by rotating the rotating column. When the main lifting column rotates, the spiral groove on it rotates accordingly, thereby driving the guide pin to rise and fall. During the lifting process, the auxiliary lifting column of the entire lifting platform is limited, so that the entire lifting platform can only be raised and lowered vertically, thus realizing the stepless adjustment of the entire variable magnification body, and thus realizing the adjustment of any magnification within a certain range, making it more widely used.

[0019] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A microscope lens zoom body adjustment mechanism comprising a support seat, an upper lens, a lower lens and a zoom lens, characterized in that: The upper lens and lower lens are respectively fixed at both ends of the support base. An adjustment component is provided between the first and second ends of the support base. The zoom lens is driven by the adjustment component to move between the upper lens and the lower lens. The upper lens, zoom lens and lower lens are coaxial.

2. A mechanism for adjusting the magnification of a microscope lens according to claim 1, characterized in that: The adjustment assembly includes an adjustment knob fixed to the end of the support base. A lifting part is provided between the top and bottom ends of the support base. Rotating the adjustment knob drives the lifting part to move up and down between the top and bottom ends of the support base. The zoom lens is fixed on the lifting part.

3. A microscope lens magnification adjustment mechanism according to claim 2, wherein: The support base includes a platform and a bottom surface, which are connected by a support plate. Mounting holes are opened on the platform and the bottom surface respectively. The upper lens is fixed in the mounting hole on the platform and the lower lens is fixed in the mounting hole on the bottom surface. The adjustment knob is located at the edge of the platform and the lifting part is located between the platform and the bottom surface.

4. A microscope lens magnification adjustment mechanism according to claim 3, wherein: The adjustment knob includes a rotating column, and a transmission assembly is sleeved on the rotating column. When the rotating column rotates, it drives the lifting part to rise and fall through the transmission assembly.

5. A microscope lens magnification adjustment mechanism according to claim 4, wherein: The transmission assembly includes a main guide wheel sleeved and fixed on the rotating column, and an auxiliary guide wheel rotatably connected at the edge of the platform. One end of the auxiliary guide wheel meshes with the main guide wheel, and the other end of the auxiliary guide wheel meshes with the lifting part for transmission.

6. A microscope lens magnification adjustment mechanism according to claim 4, characterized in that: The lifting unit includes a main lifting column and an auxiliary lifting column rotatably connected between the platform and the bottom surface. A lifting platform is sleeved on the main lifting column and the auxiliary lifting column. The zoom lens is mounted on the lifting platform. A guide pin extends from one side of the lifting platform toward the main lifting column. A spiral groove is opened on the main lifting column corresponding to the position of the guide column. The guide pin is inserted into the spiral groove. A transmission wheel is sleeved and fixed at the end of the main lifting column and meshes with the transmission assembly.

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