CN-224216942-U - Microscope objective switching mechanism

CN224216942UCN 224216942 UCN224216942 UCN 224216942UCN-224216942-U

Abstract

The utility model provides a microscope objective lens switching mechanism which comprises an objective lens holder, a turret, a transmission mechanism, a driving device and a positioning device, wherein the objective lens holder is arranged on a rack of a microscope, the turret is rotatably arranged on the objective lens holder, n objective lenses are uniformly distributed on the turret along the circumferential direction, the transmission mechanism comprises a driving gear and a driven gear, the driving gear is connected with the driving device, the number of teeth of the driving gear is a, the driven gear is fixedly connected with the turret and meshed with the driving gear, a positioning part is arranged on the driven gear, the number of teeth of the driven gear is a multiplied by n, the driving device is arranged on the objective lens holder, and the positioning device is arranged on the objective lens holder and is used for being matched with the positioning part. The driving device drives the driving gear to rotate, the driving gear drives the driven gear to rotate, so that the turret is driven to rotate around the object lens holder, the driven gear rotates 360/n degrees when the driving gear rotates for one circle, namely, the included angle between the adjacent object lenses is rotated by the turret, the object lenses in the next specification are automatically switched, and the accuracy and the efficiency are improved.

Inventors

LIU HAOBING
WANG MAN
LIN WEICHANG
JIN JINGFANG
TANG GUOYANG
HUANG JIN

Assignees

武汉大江锐视生态科技有限公司

Dates

Publication Date: 20260508
Application Date: 20250702

Claims (7)

1. The utility model provides a microscope objective switching mechanism which characterized in that includes objective holder, capstan head, drive mechanism, drive arrangement and positioner, wherein: The object lens frame is arranged on the frame of the microscope; The turret is rotatably arranged on the objective lens holder, and n objective lenses are uniformly distributed on the turret along the circumferential direction; the transmission mechanism comprises a driving gear and a driven gear, the driving gear is connected with the driving device, the number of teeth of the driving gear is a, the driven gear is fixedly connected to the turret and meshed with the driving gear, a positioning part is arranged on the driven gear, and the number of teeth of the driven gear is a multiplied by n; The driving device is arranged on the object lens frame; The positioning device is arranged on the object lens frame, when the positioning device is matched with the positioning part, the turret is in an initial position, and the axis of one objective lens is perpendicular to the object stage of the microscope.
2. The microscope objective switching mechanism according to claim 1, wherein the objective holder is provided with a rotation shaft, the turret is provided with a rotation hole at its center, and the rotation shaft is rotatably mounted in the rotation hole.
3. The microscope objective switching mechanism according to claim 2, wherein the outer wall of the turret is coaxially provided with a connection ring fixedly connected with the end face of the driven gear.
4. The microscope objective switching mechanism according to claim 3, wherein balls are mounted on the inner wall of the driven gear, arc-shaped anti-slip grooves are uniformly distributed on the outer wall of the turret, and the balls are mounted in the arc-shaped anti-slip grooves.
5. The microscope objective switching mechanism according to claim 1, further comprising a magnet, wherein the positioning portion is a mounting hole provided in an end face of the driven gear, and wherein the magnet is mounted in the mounting hole; The positioning device is a magnetic induction sensor, the magnetic induction sensor is mounted on the object lens holder and is arranged corresponding to the position of the magnet, and when the magnetic induction sensor senses with the magnet, the turret is in an initial position.
6. The microscope objective switching mechanism according to claim 1, wherein six connecting portions for installing the objective are arranged on the turret, the gear ratio of the driven gear to the driving gear is 6:1, the driving gear rotates once, and the driven gear rotates by 60 degrees to drive the turret to rotate to the position of the next objective.
7. The microscope objective switching mechanism according to any one of claims 1 to 6, wherein the drive means employs a motor.

Description

Microscope objective switching mechanism Technical Field The utility model relates to the technical field of microscopes, in particular to a microscope objective switching mechanism. Background When observing micro plankton, it is difficult to observe with naked eyes, and it is necessary to observe with a microscope, and in general, we place a slide with a microorganism specimen on a stage for observation, and the microscope stage is a stage on which an object is placed and which is perpendicular to the optical axis of the microscope, and it is usually equipped with a mechanical movement device to facilitate the movement and rotation of the object along and around the axis and to position it in the axial range. In the prior art, the objective lens of the microscope is manually rotated to switch the objective lens frame, the switching speed is low, the observation efficiency is reduced, and the risk of damage to the objective lens is increased due to human contact. Disclosure of utility model In view of this, the present utility model provides a microscope objective lens switching mechanism to solve the technical problems that the manual rotating objective lens holder proposed in the above background art performs switching, the switching speed is low, the observation efficiency is reduced, and the risk of damaging the objective lens is increased due to human contact. The technical scheme of the utility model is realized as follows: The utility model provides a microscope objective lens switching mechanism, which comprises an objective lens holder, a turret, a transmission mechanism, a driving device and a positioning device, wherein: The object lens frame is arranged on the frame of the microscope; The turret is rotatably arranged on the objective lens holder, and n objective lenses are uniformly distributed on the turret along the circumferential direction; the transmission mechanism comprises a driving gear and a driven gear, the driving gear is connected with the driving device, the number of teeth of the driving gear is a, the driven gear is fixedly connected to the turret and meshed with the driving gear, a positioning part is arranged on the driven gear, and the number of teeth of the driven gear is a multiplied by n; The driving device is arranged on the object lens frame; The positioning device is arranged on the object lens frame, when the positioning device is matched with the positioning part, the turret is in an initial position, and the axis of one objective lens is perpendicular to the object stage of the microscope. On the basis of the technical scheme, preferably, the object lens holder is provided with a rotating shaft, the center of the turret is provided with a rotating hole, and the rotating shaft is rotatably arranged in the rotating hole. On the basis of the technical scheme, preferably, a connecting ring is coaxially arranged on the outer wall of the turret, and the connecting ring is fixedly connected with the end face of the driven gear. On the basis of the technical scheme, preferably, the inner wall of the driven gear is provided with balls, the outer wall of the turret is uniformly provided with arc-shaped anti-slip grooves, and the balls are arranged in the arc-shaped anti-slip grooves. On the basis of the technical scheme, preferably, the microscope objective switching mechanism further comprises a magnet, the positioning part is a mounting hole arranged on the end face of the driven gear, and the magnet is mounted in the mounting hole; The positioning device is a magnetic induction sensor, the magnetic induction sensor is mounted on the object lens holder and is arranged corresponding to the position of the magnet, and when the magnetic induction sensor senses with the magnet, the turret is in an initial position. On the basis of the technical scheme, preferably, six connecting parts for installing the objective lens are arranged on the turret, the gear ratio of the driven gear to the driving gear is 6:1, the driving gear rotates for one circle, and the driven gear rotates for 60 degrees to drive the turret to rotate to the position of the next objective lens. On the basis of the technical scheme, preferably, the driving device adopts a motor. Compared with the prior art, the microscope objective switching mechanism has the following beneficial effects: (1) When the positioning device is matched with the positioning part, the turret is in an initial position, one axis of the objective lens is vertical to an objective table of the microscope, the turret is rotatably mounted on the objective lens holder, the driving device drives the driving gear to rotate, the driving gear drives the driven gear to rotate, so that the turret is driven to rotate around the objective lens holder, the number of teeth of the driving gear is a, the number of teeth of the driven gear is a multiplied by n, and each time the driving gear rotates for 360/n degrees, namely, the turret rotates an included