Microscope

Abstract

A microscope (100), comprising a base (10), an optical module (20), and a locking mechanism (30). The base (10) is provided with a stage (11) for placing an object under test. The optical module (20) comprises a body (21) and an optical lens (22) mounted on the body (21), and the body (21) is rotatably mounted on the base (10) by means of a rotating shaft (23). The body (21) is pushed and pulled to swing between a first observation position and a second observation position around the rotating shaft (23) relative to the base (10), so as to drive the optical lens (22) to swing from facing one tested surface of the object under test to another tested surface relative to the object under test. The locking mechanism (30) is mounted on the base (10) and is used for unlocking the rotating shaft (23) from the base (10) or locking the rotating shaft (23) on the base (10) when the body (21) is in the first observation position and the second observation position, and is used for enabling the rotating shaft (23) to remain unlocked from the base (10) when the body (21) is on a swing path between the first observation position and the second observation position.

Description

Microscope TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of optical instruments, in particular to a microscope. BACKGROUND

[0002] The microscope is an important instrument for object observation, and the structural design of the microscope is crucial to the observation accuracy. The microscope in the related art is easily displaced by external vibration during observation due to structural limitations, and cannot guarantee observation accuracy. SUMMARY

[0003] The main purpose of the present disclosure is to provide a microscope, which aims to solve the technical problems that the microscope in the related art cannot guarantee observation accuracy and cannot automatically hold tightly during tilting.

[0004] To achieve the above-mentioned purpose, the present disclosure provides a microscope, which comprises a rack, a loading platform for placing a measured object arranged on the rack, an optical module, the optical module comprising a machine body and an optical lens mounted on the machine body, the machine body being rotatably mounted on the rack through a rotating shaft, and the optical lens facing the loading platform; the machine body is swung around the rotating shaft relative to the rack between a first observation position and a second observation position to drive the optical lens to swing relative to the measured object from one measured surface of the measured object to another measured surface; the first observation position is any position on a swing path of the machine body swinging around the rotating shaft relative to the rack, and the second observation position is any position on the swing path different from the first observation position; a locking mechanism is mounted on the rack, the locking mechanism is used to unlock the rotating shaft from the rack or lock the rotating shaft on the rack when the machine body is in the first observation position and the second observation position, and is used to keep the rotating shaft unlocked from the rack when the machine body is on the swing path between the first observation position and the second observation position.

[0005] Optionally, the locking mechanism comprises a driving member, a transmission member and a locking assembly, the locking assembly is used to lock the rotating shaft on the rack, and the driving member is used to drive the locking assembly to loosen the rotating shaft through the transmission member to unlock the rotating shaft from the rack.

[0006] Optionally, the optical module is located on one side of the rack, the locking mechanism further comprises a protective cover mounted on the rack away from the optical module, an installation section is formed on the rotating shaft, the installation section passes through the rack and extends to the protective cover, and the driving member, the transmission member and the locking assembly are all accommodated in the protective cover.

[0007] Optionally, the driving member is an electromagnetic coil sleeved outside the mounting segment, the transmission member is an electromagnetic induction block arranged between the electromagnetic coil and the rack, the locking assembly comprises a friction plate and a first elastic member, the friction plate is located between the electromagnetic induction block and the rack, the friction plate is connected with the rotating shaft, and the first elastic member is connected between a side of the electromagnetic induction block away from the friction plate and the protective cover; the first elastic member is used for abutting against the electromagnetic induction block when the electromagnetic coil is powered off, so that the electromagnetic induction block cooperates with the rack to clamp and brake the friction plate, the rotating shaft is locked on the rack through the friction plate; the electromagnetic coil is used for moving the electromagnetic induction block away from the friction plate when powered on, so as to release the friction plate and unlock the rotating shaft from the rack.

[0008] Optionally, the electromagnetic induction block is an armature annularly arranged outside the mounting segment, the friction plate is an annular friction plate annularly arranged outside the mounting segment, and the rotating shaft is connected with the friction plate in a key connection mode; the rack is further provided with a gasket on a side facing the friction plate, and the electromagnetic induction block is used for clamping and braking the friction plate in cooperation with the gasket.

[0009] Optionally, a guide shaft is arranged between the electromagnetic induction block and the protective cover, the extension direction of the guide shaft is consistent with the movement direction of the electromagnetic induction block, and the first elastic member is a compression spring sleeved outside the guide shaft.

[0010] Optionally, a push-pull handle is arranged outside the machine body, and a button for controlling the electromagnetic coil to be powered on or powered off is arranged on the push-pull handle.

[0011] Optionally, the microscope further comprises an anti-twist mechanism, the anti-twist mechanism comprises a connecting seat, a second elastic member and a mounting seat, the mounting seat is arranged on the rack and located below the locking mechanism, the connecting seat is located between the mounting seat and the locking mechanism and is hinged with an adapter seat, the adapter seat is connected with the outer circumferential wall of the rotating shaft, and the second elastic member is connected between the connecting seat and the mounting seat and is used for pulling down the rotating shaft when the machine body swings relative to the rack between the first observation position and the second observation position around the rotating shaft.

[0012] Optionally, the microscope further comprises a positioning mechanism, the positioning mechanism comprising a positioning housing, a handle, a linkage assembly and a positioning pin, the positioning housing being mounted on the frame, the linkage assembly being movably mounted on the positioning housing, the handle being hinged outside the positioning housing and connected with the linkage assembly, the linkage assembly being arranged in linkage with the positioning pin, the positioning pin being telescopically arranged in the positioning housing, and one end of the positioning pin extending out of the positioning housing and forming a positioning end, the body corresponding to the position of the positioning end being provided with a positioning block, the positioning block being provided with a positioning recess; the handle is driven to rotate, so as to drive the positioning pin to telescopically move relative to the positioning housing through the linkage assembly, so as to correspondingly fix the body by inserting the positioning end into the positioning recess when the body is in an initial position on the swing path relative to the frame, or loosen the body by disengaging the positioning end from the positioning recess.

[0013] Optionally, the linkage assembly comprises a connecting shaft and a sliding block, the positioning housing is formed with a sliding cavity, the sliding block is located in the sliding cavity and is in sliding connection with the inner wall of the sliding cavity, the extension direction of the sliding cavity is consistent with the telescopic direction of the positioning pin, the positioning housing is formed with an arc-shaped groove, the sliding block is formed with a strip-shaped groove corresponding to the position of the arc-shaped groove, the extension direction of the strip-shaped groove is arranged at an angle with the telescopic direction of the positioning pin, and one end of the connecting shaft passes through the arc-shaped groove and extends into the strip-shaped groove; the sliding block is elastically connected with the positioning pin, and the other end of the connecting shaft extends out of the positioning housing and is connected with the handle; the handle is driven to rotate, so as to drive the connecting shaft to slide along the arc-shaped groove relative to the positioning housing, and drive the sliding block to slide in the sliding cavity through the sliding fit with the strip-shaped groove, so as to drive the positioning pin to telescopically move relative to the positioning housing.

[0014] Optionally, the linkage assembly further comprises a linkage rod, the extension direction of the linkage rod is consistent with the telescopic direction of the positioning pin, the side of the sliding block facing the positioning pin is provided with a floating groove facing the positioning pin, and the groove of the floating groove is covered with a stop plate; the two ends of the linkage rod are respectively a limiting end and a free end, the limiting end extends into the floating groove, and the limiting end is formed with a limiting block for abutting against the stop plate, and the free end is connected with the positioning pin; a third elastic member is connected between the positioning pin and the stop plate, so that the sliding block slides in the sliding cavity, and the third elastic member drives the positioning pin to telescopically move relative to the positioning housing.

[0015] Optionally, the third elastic member is a compression spring sleeved on the linkage rod, the positioning pin is internally formed with a first guide groove having a first opening facing the slider, and the compression spring extends into the first guide groove through the first opening; and / or, the slider is provided on a side facing away from the positioning pin with a limiting plate, the positioning shell is further internally formed with a second guide groove having a second opening facing away from the positioning pin, the limiting plate is located at the second opening, and a fourth elastic member, which is a compression spring, is connected between the limiting plate and a groove bottom wall of the second guide groove opposite to the second opening.

[0016] Optionally, the microscope further comprises an angle sensing member for sensing and feeding back the rotation angle information of the rotation shaft.

[0017] Optionally, the machine frame is provided with a support seat, and the rotation shaft is mounted on the support seat through a bearing assembly, the bearing assembly comprising first and second bearings spaced along the axial direction of the rotation shaft, and the first and second bearings are both used for axially fixing the rotation shaft.

[0018] Optionally, the machine frame comprises a base and a support mounted on one side of the base, the other side of the base is provided with the object table, and the object table can move relative to the base along the X, Y and Z directions, the machine body comprises a movable frame and a lifting seat, the optical lens is mounted on the lifting seat, and the lifting seat is mounted on the movable frame in a lifting manner along the Z direction, the movable frame is rotatably mounted on the support through the rotation shaft, the rotation shaft extends along the Y direction, and the movable frame can swing on a plane formed by the X and Z directions relative to the support.

[0019] The microscope of the present disclosure can adjust the observation angle of the optical lens by swinging the machine body rotation shaft on the swing path relative to the machine frame, realize the observation of different observation surfaces of the measured object, is simple and convenient, easy to operate, and improves the use experience. Moreover, the locking mechanism of the present disclosure can be used to lock or unlock the rotation shaft as needed, automatically hold at any inclined position, so that the optical lens remains stable in the observation position, and improves the observation accuracy. Moreover, the microscope of the present disclosure can realize the observation process of the measured object by simple structure design, has simple structure, and reduces the production and maintenance difficulty and cost. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the related art, the following will briefly introduce the drawings needed to be used in the embodiments or the related art description. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can also be obtained from the technical solutions shown in these drawings without creative effort.

[0021] Fig. 1 is a structural schematic diagram of a microscope in one embodiment of the present disclosure at one view angle and with the body in a first observation position;

[0022] Fig. 2 is a structural schematic diagram of the microscope in one embodiment of the present disclosure at another view angle and with the body in the first observation position;

[0023] Fig. 3 is a structural schematic diagram of the microscope in one embodiment of the present disclosure at still another view angle and with the body in the first observation position;

[0024] Fig. 4 is a structural schematic diagram of the microscope in one embodiment of the present disclosure with the body in a second observation position;

[0025] Fig. 5 is a partial structural schematic diagram of the microscope in one embodiment of the present disclosure;

[0026] Fig. 6 is a structural schematic diagram of a locking mechanism in the microscope in one embodiment of the present disclosure;

[0027] Fig. 7 is another partial structural schematic diagram of the microscope in one embodiment of the present disclosure;

[0028] Fig. 8 is still another partial structural schematic diagram of the microscope in one embodiment of the present disclosure;

[0029] Fig. 9 is a structural schematic diagram of a positioning mechanism in the microscope in one embodiment of the present disclosure;

[0030] Fig. 10 is a sectional schematic diagram of the positioning mechanism in the microscope in one embodiment of the present disclosure;

[0031] Fig. 11 is still another partial structural schematic diagram of the microscope in one embodiment of the present disclosure.

[0032] Explanation of reference signs:

[0033] The purposes, functional features and advantages of the present disclosure will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0034] With reference to the drawings, the technical solutions in the embodiments will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present disclosure.

[0035] It should be noted that all directional indications, such as upper, lower, left, right, front, back, etc., in the embodiments are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in FIG. 1), and if the certain posture changes, the directional indications also change accordingly.

[0036] In addition, the descriptions such as "first", "second" and the like in the present disclosure are only for descriptive purposes, and cannot be understood as indicating or implying the relative importance of the technical features indicated or implying the number of the technical features indicated. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the present disclosure, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified.

[0037] In the present disclosure, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For a person of ordinary skill in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0038] In addition, the technical solutions of various embodiments of the present disclosure can be combined with each other, but it must be based on the fact that a person of ordinary skill in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the protection scope required by the present disclosure. It should be understood that the specific embodiments described herein are only used to explain the present disclosure, and not to limit the present disclosure.

[0039] In the present disclosure, the description of "up", "down", "front", "back", "left", "right" and the like is based on the orientation shown in FIG. 1, and is only used to explain the relative positional relationship between components in the posture shown in FIG. 1, and if the certain posture changes, the directional indications also change accordingly.

[0040] The present disclosure provides a microscope 100.

[0041] As shown in FIGS. 1-4, in an embodiment, the microscope 100 comprises a frame 10, an optical module 20, and a locking mechanism 30, wherein the frame 10 is provided with a stage 11 for placing a measured object; the optical module 20 comprises a body 21 and an optical lens 22 mounted on the body 21, the body 21 is rotatably mounted on the frame 10 through a rotating shaft 23, and the optical lens 22 faces the stage 11; the body 21 is swung around the rotating shaft 23 relative to the frame 10 between a first observation position and a second observation position to drive the optical lens 22 to swing relative to the measured object from one measured surface to another measured surface; the first observation position is any position on a swing path of the body 21 swinging around the rotating shaft 23 relative to the frame 10, and the second observation position is any position on the swing path different from the first observation position; the locking mechanism 30 is mounted on the frame 10, and the locking mechanism 30 is used to unlock or lock the rotating shaft 23 from or on the frame 10 when the body 21 is at the first observation position and the second observation position, and is used to keep the rotating shaft 23 unlocked from the frame 10 when the body 21 is on the swing path between the first observation position and the second observation position.

[0042] It should be noted that the microscope 100 of the present disclosure can be a digital microscope 100, or an optical microscope 100, an electron microscope 100, or a polarizing microscope 100, etc. In addition, the microscope 100 can be locked at any position within the allowable range of motion, i.e., the first and second observation positions are any positions within the allowable range of motion.

[0043] As shown in FIGS. 1-4, the optical module 20 is located above the stage 11, and the optical lens 22 is mounted at the bottom of the body 21. The body 21 is swung relative to the frame 10 through rotation of the rotating shaft 23. In an embodiment, the rotating shaft 23 extends along the Y direction, and the body 21 is swung around the rotating shaft 23 in a plane formed by the X direction and the Z direction. It can be understood that the swinging of the body 21 around the rotating shaft 23 means that the body 21 rotates around the axis of the rotating shaft 23. The X direction can be the left-right direction shown in FIG. 1, the Y direction can be the front-back direction shown in FIG. 1, and the Z direction can be the up-down direction shown in FIG. 1. The body 21 is rotated clockwise or counterclockwise around the rotating shaft 23. The first observation position and the second observation position can be any two different positions on a swing path of the body 21 swinging around the rotating shaft 23 relative to the frame 10, i.e., the swing angles of the body 21 at the first observation position and the second observation position are different. For example, the first observation position is the position shown in FIGS. 1-3, and the second observation position is the position shown in FIG. 4. In addition, the swing angle range of the body 21 swinging around the rotating shaft 23 relative to the frame 10 can be flexibly set according to actual use requirements.

[0044] In use, the microscope 100 places the measured object on the object table 11, and the optical lens 22 faces the measured object on the object table 11 to observe the measured surface of the measured object within the test range of the optical lens 22. When the machine body 21 is in the first observation position, the optical lens 22 observes a measured surface of the measured object, for example, the front surface of the measured object. When it is necessary to change to another measured surface and change the test angle, for example, it is necessary to change to the side surface feature of the measured object, the machine body 21 is swung around the rotating shaft 23 relative to the machine frame 10 from the first observation position to the second observation position, and at this time, the optical lens 22 can face the side surface of the measured object to realize observation of different measured surfaces of the measured object by swinging the machine body 21, thereby improving the observation range of the microscope 100. The first observation position and the second observation position are both observation positions for observing the measured object.

[0045] In addition, the locking mechanism 30 can lock the rotating shaft 23 on the machine frame 10 when the machine body 21 is in the first observation position and the second observation position, so that the rotating shaft 23 is locked and cannot continue to swing, thereby stably stopping the optical lens 22 at the first observation position or the second observation position, and improving the observation accuracy of the measured surface. At the same time, when it is necessary to adjust the test angle, the locking mechanism 30 unlocks the rotating shaft 23 from the machine frame 10 to realize the swing of the machine body 21 by the rotation of the rotating shaft 23. In order to avoid the machine body 21 being hindered when swinging on the swing path between the first observation position and the second observation position, the locking mechanism 30 remains in the unlocked state when the machine body 21 is on the swing path between the first observation position and the second observation position, so that the rotating shaft 23 and the machine frame 10 remain unlocked, thereby facilitating smooth swinging of the machine body 21.

[0046] The microscope 100 of the present disclosure adjusts the observation angle of the optical lens 22 by swinging the machine body 21 around the rotating shaft 23 relative to the machine frame 10 on the swing path, realizes observation of different measured surfaces of the measured object, is simple and convenient, easy to operate, and improves the use experience. Moreover, the present disclosure can lock or unlock the rotating shaft 23 as needed by setting the locking mechanism 30 to keep the optical lens 22 in a stable state in the observation position, thereby improving the observation accuracy. In addition, the microscope 100 of the present disclosure can realize the observation process of the microscope 100 on the measured object by simple structure design, has simple structure, and reduces the production and maintenance difficulty and cost.

[0047] It should be noted that the optical lens 22 of the microscope 100 can be one or more, and the installation position of the one or more optical lenses 22 on the machine body 21 can be flexibly set according to actual needs. The present embodiment takes one of the optical lenses 22 as an example for description.

[0048] As shown in FIGS. 5-7, in an embodiment, the locking mechanism 30 includes a driving member 31, a transmission member 32, and a locking assembly 33, the locking assembly 33 is used to lock the rotating shaft 23 on the frame 10, thereby achieving the locking of the machine body 21, the driving member 31 is used to drive the locking assembly 33 to loosen the rotating shaft 23 through the transmission member 32, so as to unlock the rotating shaft 23 from the frame 10, thereby achieving the unlocking of the machine body 21. The locking mechanism 30 of the present embodiment locks the rotating shaft 23 through the locking assembly 33, and the unlocking process of the rotating shaft 23 can be achieved through the cooperation between the driving member 31, the transmission member 32 and the locking assembly 33, which is a clever design.

[0049] Further, the optical module 20 is located on one side of the frame 10, and the locking mechanism 30 further includes a protective cover 34 mounted on the side of the frame 10 away from the optical module 20, the rotating shaft 23 is formed with a mounting section 231, the mounting section 231 passes through the frame 10 and extends to the protective cover 34, and the driving member 31, the transmission member 32 and the locking assembly 33 are all accommodated in the protective cover 34.

[0050] The optical module 20 is located on the front side of the frame 10, and the protective cover 34 of the locking mechanism 30 is mounted on the rear side of the frame 10, the rotating shaft 23 is formed with a mounting section 231, the mounting section 231 is located at the rear section of the rotating shaft 23, the mounting section 231 passes through the frame 10 and extends to the protective cover 34, and the rear end of the mounting section 231 is rotatably arranged in the protective cover 34. The driving member 31, the transmission member 32 and the locking assembly 33 of the locking mechanism 30 are all accommodated in the protective cover 34, which is compact in structure.

[0051] In an embodiment, the microscope 100 of the present disclosure further includes an angle sensing member 40, which is used to sense and feedback the rotation angle information of the rotating shaft 23. It can be understood that the angle sensing member 40 can be used to sense the rotation angle information of the rotating shaft 23 and feedback the rotation angle information in real time, so that the rotation angle of the machine body 21 and the optical lens 22, i.e. the swing angle relative to the frame 10, can be obtained through the rotation angle information, and the real-time feedback function of the rotation angle of the optical lens 22 can be achieved.

[0052] The installation position of the angle sensing member 40 can be flexibly set according to needs, in an embodiment, the angle sensing member 40 is mounted on the rotating shaft 23 and / or the protective cover 34, which is beneficial to sensing the rotation angle information of the rotating shaft 23. In an embodiment, the angle sensing member 40 can be an angle sensor capable of sensing and feeding back the rotation angle information of the rotating shaft 23, and the angle sensor can be an optical sensor and a capacitive sensor, etc.

[0053] Further, the driving member 31 is an electromagnetic coil 31a sleeved outside the mounting segment 231, the transmission member 32 is an electromagnetic induction block 32a arranged between the electromagnetic coil 31a and the rack 10, the locking assembly 33 comprises a friction plate 331 and a first elastic member 332, the friction plate 331 is located between the electromagnetic induction block 32a and the rack 10, and the friction plate 331 is connected with the rotating shaft 23, the first elastic member 332 is connected between a side of the electromagnetic induction block 32a away from the friction plate 331 and the protective cover 34; the first elastic member 332 is used for abutting against the electromagnetic induction block 32a when the electromagnetic coil 31a is powered off, so that the electromagnetic induction block 32a cooperates with the rack 10 to clamp and brake the friction plate 331, so as to lock the rotating shaft 23 on the rack 10 through the friction plate 331; the electromagnetic coil 31a is used for moving the electromagnetic induction block 32a in a direction away from the friction plate 331 to release the friction plate 331 when powered on, so as to release and unlock the rotating shaft 23 from the rack 10.

[0054] The electromagnetic coil 31a is sleeved outside the mounting segment 231, the electromagnetic induction block 32a as the transmission member 32 is located between the electromagnetic coil 31a and the rack 10, that is, the electromagnetic induction block 32a is located at the front side of the electromagnetic coil 31a, the friction plate 331 of the locking assembly 33 is located between the electromagnetic induction block 32a and the rack 10, that is, the friction plate 331 is located at the front side of the electromagnetic induction block 32a, and the friction plate 331 is connected with the rotating shaft 23. The front end of the first elastic member 332 is connected to the rear side of the electromagnetic induction block 32a, and the rear end of the first elastic member 332 is connected to the inner wall of the protective cover 34.

[0055] When the electromagnetic coil 31a is powered off, that is, when the electromagnetic coil 31a is not powered on, the electromagnetic induction block 32a and the electromagnetic coil 31a do not have induction conditions, at this time, the first elastic member 332 abuts against the electromagnetic induction block 32a forward by using the elastic force of the first elastic member 332, so that the electromagnetic induction block 32a cooperates with the rack 10 to clamp and brake the friction plate 331, that is, the friction plate 331 is fixed, so that the rotating shaft 23 connected with the friction plate 331 is braked, and the rotating shaft 23 is locked.

[0056] When the electromagnetic coil 31a is powered on, the electromagnetic induction block 32a moves backward under the action of magnetic attraction, at this time, the magnetic attraction received by the electromagnetic induction block 32a is greater than the elastic force of the first elastic member 332, so that the electromagnetic induction block 32a moves backward to release the friction plate 331, and the friction plate 331 is in a free state and is no longer clamped and braked, and then the braking effect on the rotating shaft 23 is eliminated, so that the rotating shaft 23 is released and unlocked. Understandably, when the electromagnetic coil 31a is powered off again, the electromagnetic induction block 32a can move forward under the action of the elastic force of the first elastic member 332 to cooperate with the rack 10 to clamp and brake the friction plate 331.

[0057] The locking mechanism 30 of the microscope 100 of the present disclosure utilizes the cooperation between the electromagnetic coil 31a, the electromagnetic induction block 32a and the first elastic member 332 to realize the braking or loosening of the friction plate 331, and further realize the locking or unlocking of the rotating shaft 23, which is ingenious and flexible in structure design, and is beneficial to guarantee the locking effect and the unlocking effect.

[0058] In an embodiment, the electromagnetic induction block 32a is an armature annularly arranged outside the mounting section 231, the friction plate 331 is an annular friction plate 331 annularly arranged outside the mounting section 231, and the rotating shaft 23 is keyed connected with the friction plate 331; the rack 10 is further provided with a gasket 12 on the side facing the friction plate 331, and the electromagnetic induction block 32a is used to cooperate with the gasket 12 to clamp and brake the friction plate 331.

[0059] The armature can be attracted and moved by the energized electromagnetic coil 31a, and the cooperation degree between the electromagnetic coil 31a is high. In order to avoid interference with the mounting section 231, the friction plate 331 and the electromagnetic induction block 32a are annularly arranged outside the mounting section 231, and the rotating shaft 23 is keyed connected with the friction plate 331, for example, the spline 36 can be used for connection, which is stable and reliable. The gasket 12 can be arranged on the side of the rack 10 facing the friction plate 331, i.e. the rear side of the rack 10, when the electromagnetic coil 31a is de-energized, the first elastic member 332 abuts against the electromagnetic induction block 32a in front, and the electromagnetic induction block 32a and the gasket 12 on the rack 10 can cooperate to clamp and brake the friction plate 331. The gasket 12 is easy to cooperate with the electromagnetic induction block 32a, and the braking effectiveness is guaranteed.

[0060] In an embodiment, the electromagnetic induction block 32a and the protective cover 34 are provided with a guide shaft 35, the extension direction of the guide shaft 35 is consistent with the movement direction of the electromagnetic induction block 32a, and the first elastic member 332 is a compression spring sleeved outside the guide shaft 35. It can be understood that the electromagnetic induction block 32a moves in the front-rear direction, the guide shaft 35 extends in the front-rear direction, and the first elastic member 332 is sleeved outside the guide shaft 35, so that the guide shaft 35 can guide the first elastic member 332, which is beneficial to the stable extension and contraction of the first elastic member 332, and further improves the effectiveness of the electromagnetic induction block 32a on the friction plate 331.

[0061] As shown in FIGS. 1-4, in an embodiment, a push-pull handle 50 is mounted on the body 21, and a button 60 for controlling the energization or de-energization of the electromagnetic coil 31a is mounted on the push-pull handle 50. The user can drive the body 21 by pushing or pulling the push-pull handle 50, which is simple and convenient. The shape of the push-pull handle 50 can be flexibly set according to actual needs. In an embodiment, the push-pull handle 50 surrounds the outer periphery of the body 21, which is easy to operate. In other embodiments, the push-pull handle 50 can be a circular handle or a handle of other shapes, as long as it is convenient for the user to operate. The button 60 is mounted on the push-pull handle 50, and the energization or de-energization of the electromagnetic coil 31a can be controlled by pressing the button 60, which is convenient to operate. It should be noted that when the body 21 needs to be unlocked, the button 60 is pressed, and the electromagnetic coil 31a is energized at this time. When the body 21 needs to be locked, the button 60 is released, and the electromagnetic coil 31a is de-energized. The process of the button 60 controlling the energization and de-energization of the electromagnetic coil 31a can adopt related technologies, which will not be described here.

[0062] As shown in FIGS. 1 and 11, the microscope 100 of the present disclosure further comprises an anti-twist mechanism 70, which comprises a connecting seat 71, a second elastic member 72, and a mounting seat 73. The mounting seat 73 is mounted on the rack 10 and located below the locking mechanism 30. The connecting seat 71 is located between the mounting seat 73 and the locking mechanism 30 and is hinged to an adapter seat 74, which is connected to the outer peripheral wall of the rotating shaft 23. The second elastic member 72 is connected between the connecting seat 71 and the mounting seat 73 and is used to pull down the rotating shaft 23 when the body 21 swings around the rotating shaft 23 relative to the rack 10 between the first observation position and the second observation position.

[0063] The mounting seat 73 is arranged close to the bottom of the frame 10, the mounting seat 73 is below the locking mechanism 30, the connecting seat 71 is between the mounting seat 73 and the locking structure, the connecting seat 71 is hingedly connected with an adapter seat 74, the adapter seat 74 is connected with the outer circumferential wall of the rotating shaft 23, and the connecting seat 71 and the mounting seat 73 are connected by the second elastic member 72. When the machine body 21 swings around the rotating shaft 23 relative to the frame 10 between the first observation position and the second observation position, if the first observation position and the second observation position are positions of the swing path relative to the frame 10, that is, the machine body 21 is tilted relative to the Z axis, the gravity of the machine body 21 will generate a component force to generate a torque Mg on the rotating shaft 23, and the user pushes or pulls the push-pull handle 50 to apply a power Mr, the Mr can offset part or all of the Mg. Due to the downward pulling effect of the second elastic member 72, a torque Mt opposite to the torque Mg is applied to the rotating shaft 23, and the Mt can also offset part or all of the Mg, as long as Mr+Mt≥Mg, so that the user applies less power Mr through the setting of the anti-torque mechanism 70, which not only saves labor, but also makes the operation more humanized, and can avoid the instantaneous downward swing of the machine body 21 due to the action of gravity when the machine body 21 is unlocked and rotated, which is safe and reliable.

[0064] The second elastic member 72 can be a tensile spring, and the number of the second elastic members 72 can be multiple, and the multiple second elastic members 72 can be arranged side by side in the left-right direction. The setting of the multiple second elastic members 72 can provide greater Mt, which is more labor-saving, and the torque Mt can be flexibly set according to actual conditions, which does not hinder the normal rotation of the rotating shaft 23.

[0065] As shown in FIGS. 1, 2, 5, 7-10, the microscope 100 further comprises a positioning mechanism 80, the positioning mechanism 80 comprises a positioning shell 81, a rotating handle 82, a linkage assembly 83 and a positioning pin 84, the positioning shell 81 is mounted on the frame 10, the linkage assembly 83 is movably mounted on the positioning shell 81, the rotating handle 82 is hingedly connected outside the positioning shell 81 and connected with the linkage assembly 83, the linkage assembly 83 is connected with the positioning pin 84 in linkage, the positioning pin 84 is telescopically arranged in the positioning shell 81, one end of the positioning pin 84 extends out of the positioning shell 81 and forms a positioning end, the machine body 21 is provided with a positioning block 211 at a position corresponding to the positioning end, and the positioning block 211 is provided with a positioning groove 212; the rotating handle 82 is driven to rotate, so as to drive the positioning pin 84 to extend or retract relative to the positioning shell 81 through the linkage assembly 83, so as to correspondingly insert the positioning end into the positioning groove 212 to fix the machine body 21 or make the positioning end disengage from the positioning groove 212 to release the machine body 21 when the machine body 21 is in an initial position; wherein the initial position is a position of the machine body 21 relative to the frame 10 without deflection on the swing path.

[0066] It can be understood that, as shown in FIGS. 1-3, the initial position is the position of the machine body 21 on the swing path relative to the frame 10 without deflection, which means that the machine body 21 is in a vertical position, coincides with the Z-axis, and is a zero position. The first observation position or the second observation position can coincide with the initial position, or the first observation position and the second observation position do not coincide with the initial position. In an embodiment, as shown in FIGS. 1-3, the first observation position coincides with the initial position.

[0067] When the machine body 21 needs to be kept in the initial position, the positioning end of the positioning pin 84 is always inserted into the positioning groove 212, thereby fixing the machine body 21, achieving positioning of the machine body 21, and ensuring the structural stability of the microscope 100.

[0068] When the machine body 21 needs to be swung from the initial position to other positions, such as the second observation position, the user can drive the handle 82 to rotate, and then drive the positioning pin 84 to retract inward relative to the positioning shell 81 through the linkage assembly 83, so that the positioning end is separated from the positioning groove 212, thereby loosening the machine body 21 and providing conditions for the swing of the machine body 21.

[0069] When the machine body 21 returns to the initial position from other positions, the user drives the handle 82 to rotate in the opposite direction, and then drives the positioning pin 84 to extend outward relative to the positioning shell 81 through the linkage assembly 83, so that the positioning end is reinserted into the positioning groove 212, thereby fixing the machine body 21 again.

[0070] The microscope 100 of the present disclosure can position the machine body 21 at the initial position through the positioning mechanism 80, ensure the structural stability of the microscope 100, and not interfere with the machine body 21 when the machine body 21 needs to be swung, thereby ensuring the normal swing of the machine body 21. In order to facilitate the cooperation between the positioning end of the positioning pin 84 and the positioning groove 212, the positioning end can be provided as a circular arc end, and the two side groove walls 213 of the positioning groove 212 can be provided as inclined groove walls, and the two side groove walls 213 are tapered along the direction of insertion of the positioning end, that is, the two side groove walls 213 are inclined inward along the direction of insertion of the positioning end, which facilitates the insertion and separation of the positioning end, and also plays a guiding role in the process of inserting or separating the positioning end from the positioning groove 212.

[0071] The linkage assembly 83 comprises a connecting shaft 831 and a sliding block 832, the positioning shell 81 is formed with a sliding cavity 811, the sliding block 832 is located in the sliding cavity 811 and is in sliding connection with the inner wall of the sliding cavity 811, the extending direction of the sliding cavity 811 is consistent with the extending direction of the positioning pin 84, the positioning shell 81 is formed with an arc-shaped groove 812, the sliding block 832 is formed with a strip-shaped groove 8321 at the position corresponding to the arc-shaped groove 812, the extending direction of the strip-shaped groove 8321 is arranged at an angle with the extending direction of the positioning pin 84, one end of the connecting shaft 831 penetrates through the arc-shaped groove 812 and extends into the strip-shaped groove 8321; the sliding block 832 is in elastic connection with the positioning pin 84, the other end of the connecting shaft 831 penetrates out of the positioning shell 81 and is connected with the rotating handle 82; by driving the rotating handle 82 to rotate, the connecting shaft 831 is driven to slide along the arc-shaped groove 812 relative to the positioning shell 81, and the sliding block 832 is driven to slide in the sliding cavity 811 through the sliding cooperation with the strip-shaped groove 8321, so as to drive the positioning pin 84 to extend and retract relative to the positioning shell 81.

[0072] In an embodiment, the positioning mechanism 80 is located at the rear side of the rack 10 and above the locking mechanism 30. The positioning pin 84 extends and retracts in the front-rear direction, the sliding cavity 811 extends in the front-rear direction, and the extending direction of the strip-shaped groove 8321 can be the vertical direction, i.e., the up-down direction.

[0073] The user drives the rotating handle 82 to rotate downward, so that the connecting shaft 831 slides downward along the arc-shaped groove 812, and the sliding block 832 is driven to slide forward in the sliding cavity 811 through the sliding cooperation with the strip-shaped groove 8321, so as to drive the positioning pin 84 to extend outward relative to the positioning shell 81 and make the positioning end be inserted into the positioning groove 212, thereby realizing the fixation of the fuselage 21.

[0074] The user drives the rotating handle 82 to rotate upward, so that the connecting shaft 831 slides upward along the arc-shaped groove 812, and the sliding block 832 is driven to slide backward in the sliding cavity 811 through the sliding cooperation with the strip-shaped groove 8321, so as to drive the positioning pin 84 to retract inward relative to the positioning shell 81 and make the positioning end be separated from the positioning groove 212, thereby releasing the fuselage 21.

[0075] The present disclosure can transform the rotating process of the rotating handle 82 into the extending and retracting process of the positioning pin 84 through the cooperation between the components in the positioning mechanism 80, and the structure design is ingenious. Moreover, the sliding block 832 is in elastic connection with the positioning pin 84, the flexible linkage between the sliding block 832 and the positioning pin 84 is realized, the positioning pin 84 can float to a certain extent when the sliding block 832 drives the positioning pin 84 to extend and retract, and the situation that the positioning pin 84 cannot be effectively matched with the positioning groove 212 due to the machining and assembly errors is avoided.

[0076] In order to facilitate operation, in an embodiment, the rotating handle 82 comprises a handle ring 821, a connecting arm 822 and an operating handle 823, the handle ring 821 is annularly positioned on the positioning shell 81 and is hinged outside the positioning shell 81, one end of the connecting shaft 831 passing out of the positioning shell 81 is connected with the handle ring 821, and the handle ring 821 is connected with the operating handle 823 through the connecting arm 822. The user can realize the rotation of the connecting arm 822 and the handle ring 821 by driving the operating handle 823 to rotate, and then realize the sliding of the connecting shaft 831 along the arc-shaped groove 812, which is simple and convenient. The rotating handle 82 is arranged as the handle ring 821, the connecting arm 822 and the operating handle 823, which strengthens the overall strength of the rotating handle 82 and is not easy to deform, thereby improving the operation effectiveness and reliability.

[0077] Further, the linkage assembly 83 further comprises a linkage rod 833 and a third elastic member 834, wherein the extension direction of the linkage rod 833 is consistent with the extension direction of the positioning pin 84, the floating groove 8322 facing the positioning pin 84 is formed on the side of the sliding block 832 facing the positioning pin 84, and the floating groove 8322 is covered by the stop plate 835; the two ends of the linkage rod 833 are respectively a limiting end and a free end, the limiting end extends into the floating groove 8322, and the limiting end is formed with a limiting block 8331 for abutting against the stop plate 835, and the free end is connected with the positioning pin 84; the third elastic member 834 is connected between the positioning pin 84 and the stop plate 835, so that the sliding block 832 slides in the sliding cavity 811 to drive the positioning pin 84 to extend and retract relative to the positioning shell 81 through the third elastic member 834.

[0078] The linkage rod 833 extends in the front-rear direction, the floating groove 8322 facing forward is formed on the front side of the sliding block 832, the floating groove 8322 is covered by the stop plate 835, the rear end of the linkage rod 833 is the limiting end, and the front end is the free end.

[0079] When the sliding block 832 slides forward in the sliding cavity 811, the third elastic member 834 is forwardly extruded, and the third elastic member 834 drives the positioning pin 84 and the linkage rod 833 to move forward, so that the positioning pin 84 extends outward relative to the positioning shell 81 to realize the action that the limiting end is inserted into the positioning groove 212 to fix the fuselage 21, and due to the action of the limiting end of the linkage rod 833, when the positioning pin 84 extends outward to a certain degree, the limiting end abuts against the stop plate 835, the stop plate 835 plays a role of stopping and limiting, and the excessive extension of the positioning pin 84 is avoided.

[0080] When the sliding block 832 slides backward in the sliding cavity 811, the third elastic member 834 is backwardly pulled, and the stop plate 835 pulls the positioning pin 84 and the linkage rod 833 to move backward through the abutting cooperation with the limiting end, so that the positioning pin 84 retracts inward and outward relative to the positioning shell 81 to realize the disengagement of the limiting end from the positioning groove 212 and the loosening of the fuselage 21.

[0081] Further, the third elastic member 834 is a compression spring sleeved outside the linkage rod 833, the positioning pin 84 is formed with a first guide groove 841, the first guide groove 841 has a first opening 842 facing the slider 832, and the compression spring extends into the first guide groove 841 through the first opening 842.

[0082] The linkage rod 833 guides the third elastic member 834, so that the positioning pin 84 is stably extended and retracted. In addition, the first opening 842 of the first guide groove 841 formed in the positioning pin 84 is arranged towards the back, so that the compression spring extends into the first guide groove 841 through the first opening 842, the first guide groove 841 can also guide the third elastic member 834, and the extension stability of the positioning pin 84 is further improved.

[0083] In an embodiment, the side of the slider 832 away from the positioning pin 84 is provided with a limiting plate 85, the positioning shell 81 is further formed with a second guide groove 813, the second guide groove 813 has a second opening 814 facing away from the positioning pin 84, the limiting plate 85 is located at the second opening 814, and the fourth elastic member 86 is connected between the limiting plate 85 and the groove bottom wall of the second guide groove 813 opposite to the second opening 814, and the fourth elastic member 86 is a compression spring.

[0084] The back side of the slider 832 is provided with the limiting plate 85, the second opening 814 of the second guide groove 813 is arranged towards the back, the limiting plate 85 is located at the second opening 814, and the fourth elastic member 86 is connected between the limiting plate 85 and the groove bottom wall of the second guide groove 813, and the fourth elastic member 86 is a compression spring. The second guide groove 813 guides the fourth elastic member 86, so that the extension stability of the slider 832 in the sliding cavity 811 is improved. In addition, the third elastic member 834 is a compression spring, so that when the slider 832 slides backwards, the third elastic member 834 can also assist the slider 832 to slide backwards quickly under the action of its own restoring force, so that the force applied by the user when driving the rotating handle 82 to rotate upwards is saved, and the humanized operation is facilitated.

[0085] As shown in FIG. 5, in the microscope 100 of the present disclosure, the support seat 13 is arranged on the frame 10, the rotating shaft 23 is installed on the support seat 13 through a bearing assembly, the bearing assembly includes the first bearing 14 and the second bearing 15 which are spaced apart along the axial direction of the rotating shaft 23, and the first bearing 14 and the second bearing 15 are both used for axially fixing the rotating shaft 23. The axial direction of the rotating shaft 23 is the front-back direction, and the first bearing 14 and the second bearing 15 are spaced apart along the front-back direction, so that the rotating shaft 23 can be axially fixed, the axial movement of the rotating shaft 23 is avoided, the fuselage 21 is not affected, and the observation accuracy is ensured. In an embodiment, the first bearing 14 and the second bearing 15 can adopt an angular contact bearing or a double-row roller bearing in the related art.

[0086] As shown in FIGS. 1-4, in the microscope 100 of the present disclosure, the frame 10 includes a base 16 and a support 17 mounted on one side of the base 16, the other side of the base 16 is provided with a stage 11, and the stage 11 can move relative to the base 16 along the X, Y and Z directions, the body 21 includes a movable frame 24 and a lifting seat 25, the optical lens 22 is mounted on the lifting seat 25, and the lifting seat 25 is movably mounted on the movable frame 24 along the Z direction, the movable frame 24 is rotatably mounted on the support 17 through a rotating shaft 23, the rotating shaft 23 extends along the Y direction, and the movable frame 24 can swing on the plane formed by the X and Z directions relative to the support 17.

[0087] The stage 11 can move relative to the base 16 along the X, Y and Z directions, realizing the spatial movement of the stage 11 to adjust the position of the measured object on the stage 11 and adaptively adjust the matching position of the stage 11 and the optical lens 22. The lifting seat 25 is movably mounted on the movable frame 24 along the Z direction, realizing the lifting of the optical lens 22 along the Z direction to meet the distance adjustment requirement between the optical lens 22 and the measured object. In addition, the rotating shaft 23 extends along the Y direction, which can realize the swinging of the movable frame 24 on the plane formed by the X and Z directions relative to the frame 10, realizing the adjustment of the observation angle of the optical lens 22 to meet the observation requirement of different measured surfaces of the measured object. It should be noted that the movement of the stage 11 relative to the base 16 along the X, Y and Z directions and the lifting of the lifting seat 25 along the Z direction can be realized by related technologies, such as using X-axis sliding module, Y-axis sliding module, using motor with screw or using gear and rack structure, etc., which will not be described here.

[0088] The above is only the preferred embodiment of the present disclosure, and does not limit the patent scope of the present disclosure, and any equivalent structural transformation made by using the disclosure specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present disclosure.

Claims

1. A microscope (100), comprising: A frame (10), wherein a loading platform (11) for placing an object to be measured is provided on the frame; An optical module (20), comprising a body (21) and an optical lens (22) mounted on the body, wherein the body is rotatably mounted on the frame via a rotating shaft (23), and the optical lens faces the stage; the body is swung about the rotating shaft relative to the frame between a first observation position and a second observation position, so as to drive the optical lens to swing from one measured surface facing the measured object to another measured surface relative to the object to be measured; the first observation position is any position on a swinging path of the body about the rotating shaft relative to the frame, and the second observation position is any position on the swinging path different from the first observation position; A locking mechanism (30) is mounted on the frame, the locking mechanism being used to unlock the rotating shaft from the frame or lock it to the frame when the body is in the first observation position and the second observation position, and to keep the rotating shaft unlocked from the frame when the body is in the swing path between the first observation position and the second observation position.

2. The microscope according to claim 1, characterized in that The locking mechanism comprises a driving member (31), a transmission member (32) and a locking assembly (33), wherein the locking assembly is used to lock the rotating shaft on the frame, and the driving member is used to drive the locking assembly to loosen the rotating shaft through the transmission member to unlock the rotating shaft from the frame.

3. The microscope according to claim 2, characterized in that The optical module is located on one side of the frame, and the locking mechanism further comprises a protective cover (34) mounted on a side of the frame away from the optical module. A mounting section (231) is formed on the rotating shaft, the mounting section passes through the frame and extends toward the protective cover, and the driving member, the transmission member and the locking assembly are all accommodated in the protective cover.

4. The microscope according to claim 3, characterized in that The driving member is an electromagnetic coil (31a) sleeved outside the mounting section, the transmission member is an electromagnetic induction block (32a) arranged between the electromagnetic coil and the frame, the locking assembly comprises a friction plate (331) and a first elastic member (332), the friction plate is located between the electromagnetic induction block and the frame, and the friction plate is connected to the rotating shaft, and the first elastic member is connected between a side of the electromagnetic induction block facing away from the friction plate and the protective cover; The first elastic member is used to press against the electromagnetic induction block when the electromagnetic coil is powered off, so that the electromagnetic induction block cooperates with the frame to clamp and brake the friction plate, thereby locking the rotating shaft to the frame through the friction plate; The electromagnetic coil is used to move the electromagnetic induction block in a direction away from the friction plate when energized to release the friction plate, so as to release the rotating shaft and unlock it from the frame.

5. The microscope according to claim 4, characterized in that The electromagnetic induction block is an armature arranged outside the mounting section, the friction plate is an annular friction plate arranged outside the mounting section, and the rotating shaft is key-connected to the friction plate; A gasket is further provided on the side of the frame facing the friction plate, and the electromagnetic induction block is used to cooperate with the gasket to clamp and brake the friction plate.

6. The microscope according to claim 4 or 5, characterized in that A guide shaft (35) is installed between the electromagnetic induction block and the protective cover. The extension direction of the guide shaft is consistent with the movement direction of the electromagnetic induction block. The first elastic member is a compression spring sleeved outside the guide shaft.

7. The microscope according to any one of claims 4 to 6, characterized in that A push-pull handle (50) is installed outside the body, and a button (60) for controlling the power on or off of the electromagnetic coil is installed on the push-pull handle.

8. The microscope according to any one of claims 1 to 7, characterized in that The microscope further comprises an anti-torsion mechanism (70), the anti-torsion mechanism comprising a connecting seat (71), a second elastic member (72) and a mounting seat (73), the mounting seat being mounted on the frame and located below the locking mechanism, the connecting seat being located between the mounting seat and the locking mechanism and being hinged to an adapter seat (74), the adapter seat being connected to an outer peripheral wall of the rotating shaft, the second elastic member being connected between the connecting seat and the mounting seat and being used for pulling down the rotating shaft when the body swings around the rotating shaft relative to the frame between the first observation position and the second observation position.

9. The microscope according to any one of claims 1 to 8, characterized in that The microscope further comprises a positioning mechanism (80), the positioning mechanism comprising a positioning shell (81), a rotating handle (82), a linkage assembly (83) and a positioning pin (84), the positioning shell being mounted on the frame, the linkage assembly being movably mounted on the positioning shell, the rotating handle being hinged to the outside of the positioning shell and connected to the linkage assembly, the linkage assembly being linked to the positioning pin, the positioning pin being telescopically arranged in the positioning shell, and one end of the positioning pin extending out of the positioning shell to form a positioning end, a positioning block (211) being provided at a position of the body corresponding to the positioning end, the positioning block being provided with a positioning groove (212); By driving the handle to rotate, the positioning pin is driven to extend and retract relative to the positioning shell through the linkage assembly, so that the positioning end is inserted into the positioning groove to fix the fuselage when the fuselage is in the initial position, or the positioning end is disengaged from the positioning groove to loosen the fuselage; wherein, the initial position is the position of the fuselage on the swing path when it is not deflected relative to the frame.

10. The microscope according to claim 9, characterized in that The linkage assembly includes a connecting shaft (831) and a slider (832), a sliding cavity (811) is formed in the positioning shell, the slider is located in the sliding cavity and is slidably connected to the inner wall of the sliding cavity, the extension direction of the sliding cavity is consistent with the telescopic direction of the positioning pin, the positioning shell is formed with an arc groove (812), the slider is formed with a strip groove (8321) at a position corresponding to the arc groove, the extension direction of the strip groove is set at an angle to the telescopic direction of the positioning pin, one end of the connecting shaft passes through the arc groove and extends into the strip groove; the slider is elastically connected to the positioning pin, and the other end of the connecting shaft passes through the outside of the positioning shell and is connected to the turning handle; By driving the handle to rotate, the connecting shaft is driven to slide along the arc groove relative to the positioning shell, and the slider is driven to slide in the sliding cavity through sliding cooperation with the strip groove, so as to drive the positioning pin to expand and contract relative to the positioning shell.

11. The microscope according to claim 10, characterized in that The linkage component also includes: A linkage rod (833), the extension direction of the linkage rod is consistent with the extension and contraction direction of the positioning pin, the slider is provided with a floating groove (8322) with a notch facing the positioning pin on one side thereof, and the notch of the floating groove is covered with a stop plate (835); the two ends of the linkage rod are respectively a limit end and a free end, the limit end extends into the floating groove, and the limit end is formed with a limit block (8331) for abutting against the stop plate, and the free end is connected to the positioning pin; A third elastic member (834) is connected between the positioning pin and the stop plate, so that when the slider slides in the sliding cavity, the positioning pin is driven by the third elastic member to expand and contract relative to the positioning shell.

12. The microscope according to claim 11, characterized in that The third elastic member is a compression spring sleeved outside the linkage rod, a first guide groove (841) is formed in the positioning pin, the first guide groove has a first opening (842) facing the slider, and the compression spring extends into the first guide groove through the first opening; And / or, a limiting plate (85) is provided on the side of the slider away from the positioning pin, a second guide groove (813) is further formed in the positioning shell, the second guide groove has a second opening (814) away from the positioning pin, the limiting plate is located at the second opening, and a fourth elastic member (86) is connected between the limiting plate and the bottom wall of the second guide groove arranged opposite to the second opening, and the fourth elastic member is a compression spring.

13. The microscope according to any one of claims 1 to 12, characterized in that The microscope further comprises an angle sensing component (40) for sensing and feeding back the rotation angle information of the rotating shaft.

14. The microscope according to any one of claims 1 to 13, characterized in that A support seat (13) is provided on the frame, and the rotating shaft is installed on the support seat through a bearing assembly. The bearing assembly includes a first bearing (14) and a second bearing (15) distributed along the axial direction of the rotating shaft at intervals. The first bearing and the second bearing are both used to axially fix the rotating shaft.

15. The microscope according to any one of claims 1 to 14, characterized in that The frame includes a base (16) and a bracket (17) installed on one side of the base, the other side of the base is provided with the loading platform, and the loading platform can move relative to the base along the X direction, the Y direction and the Z direction, the fuselage includes a movable frame (24) and a lifting seat (25), the optical lens is installed on the lifting seat, and the lifting seat can be installed on the movable frame in a lifting manner along the Z direction, the movable frame is rotatably installed on the bracket via the rotating shaft, the rotating shaft extends along the Y direction, and the movable frame can swing relative to the bracket on the plane formed by the X direction and the Z direction.

Images