Self-locking device for lens swinging and rotating and microscope

Abstract

The utility model discloses a self-locking device for lens swinging and rotating, which belongs to the technical field of microscopes; a rotation limit locking mechanism is sleeved on a central linkage rotating shaft, and based on the activity of a locking rotary rod in the rotation limit locking mechanism, the locking and releasing of the central linkage rotating shaft are realized; the activity stroke of the locking rotary rod is blocked by a locking gear assembly, and the activity stroke of the locking rotary rod in locking or releasing the central linkage rotating shaft is limited, thereby avoiding the cumbersomeness of the locking rotary rod rotating multiple circles in the locking and releasing process, improving the use efficiency of the self-locking device, and avoiding the influence of excessive locking or releasing on the use of the self-locking device; in addition, by sleeve-arranging a connecting sleeve on the locking rotary rod, the locking rotary rod is not directly connected to the annular opening locking plate, thereby avoiding the wear of the annular opening locking plate caused by long-term use, thereby affecting the use of the self-locking device, increasing the stability of the lens swinging and rotating locking under long-term use, and improving the service life of the device.

Description

Technical Field

[0001] The utility model belongs to the technical field of microscopes, and in particular relates to a self-locking device for lens swinging and rotating and a microscope. Background Art

[0002] In the process of observing the object to be measured by the existing microscope, based on the shape characteristics of the object to be measured and the observation requirements, there is a need to rotate and swing the microscope lens to achieve observation of the object at different side observation angles. However, during the swinging and rotating process of the microscope lens, it is necessary to lock the microscope lens at a fixed rotation angle to facilitate the stability of image observation. Patent CN219202045U proposes a microscope lens synchronous swing arm rotation locking device, which directly threads the locking rod and the annular opening lock plate in the rotation limit locking mechanism to achieve the locking and fixing of the angle of the central linkage shaft rotated to a preset angle; the threaded locking and releasing process requires the locking rod to rotate multiple times, making the locking and releasing process relatively cumbersome, affecting the efficiency of the microscope; and, in the process of locking to releasing the annular opening lock plate, there is a transition release that causes the locking rod to disengage from the annular opening lock plate; or from the release to the locking process, the transition locking causes the annular opening lock plate to be deformed due to excessive force, thereby affecting the use of the microscope lens swing rotation. Utility Model Content

[0003] In order to solve the problems existing in the above-mentioned prior art, the utility model proposes a microscope rotation early warning system based on side observation.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A self-locking device for lens swinging and rotating, comprising a central linkage shaft and a rotation limit locking mechanism sleeved on the central linkage shaft, wherein the rotation limit locking mechanism comprises:

[0006] An annular opening lock plate is sleeved on the central linkage shaft;

[0007] A locking rotary rod is movably arranged in holes provided at both ends of the opening of the annular opening lock plate, and both ends of the opening of the annular opening lock plate are close to each other based on the movable end of the locking rotary rod; and

[0008] A locking shift assembly that blocks the movable travel of the locking rotary rod.

[0009] Preferably, the locking shift assembly includes a shift member and a shift matching member arranged on the locking rotary rod and moving with the locking rotary rod.

[0010] Preferably, the shifting member is a shifting protrusion.

[0011] Preferably, the shifting member is a shifting groove.

[0012] Preferably, it comprises a connecting sleeve, which is sleeved on the locking rotary rod and movably connected to the locking rotary rod.

[0013] Preferably, the connecting sleeve is movably connected to the locking rotary rod by threaded cooperation.

[0014] Preferably, the locking rotary rod and the annular opening locking plate are connected via the connecting sleeve.

[0015] Preferably, one of the two ends of the annular opening locking plate opening is fixedly arranged.

[0016] Preferably, a plurality of grooves are provided at the connection between the central linkage rotating shaft and the annular opening locking plate.

[0017] A microscope is equipped with a self-locking device for lens swing.

[0018] The utility model is connected with the central linkage rotating shaft through a rotation limit stop ring, and is respectively connected with the rotation limit stop ring and the swing arm fixing seat through a reset spring. When the central linkage rotating shaft drives the rotation limit stop ring to rotate to a certain angle, the reset spring can provide the rotation limit stop ring with a force to restore the rotation angle, thereby realizing the rotation angle reset of the focus rotating base plate fixedly connected to the central linkage rotating shaft, and completing the synchronous rotation of the microscope lens.

[0019] The utility model can fix the angle of the central linkage rotating shaft rotated to a certain angle through the rotation limit locking mechanism, thereby preventing the focus rotating base plate from rotating, thereby ensuring that the rotation angle of the microscope lens is fixed, facilitating the lens to capture images of the side of the sample to be detected, and improving the position stability during the image capture process.

[0020] The utility model can limit the rotation of the lens through the connection and matching mode between the supporting plate, the focus positioning pin shaft and the camera supporting seat, so as to achieve high-precision positioning in the process of lens installation.

[0021] The beneficial effects of the utility model are as follows: the utility model provides a self-locking device for the swinging and rotating of the lens, wherein the rotation limit locking mechanism is sleeved on the central linkage rotating shaft, and the locking and releasing of the central linkage rotating shaft are realized based on the activity of the locking rotary rod in the rotation limit locking mechanism; wherein the activity stroke of the locking rotary rod is blocked by the locking gear assembly, and the activity stroke of the locking rotary rod in locking or releasing the central linkage rotating shaft is limited, so that the central linkage rotating shaft can be locked or released by rotating the locking rotary rod less than one circle, thereby avoiding the cumbersomeness of rotating the locking rotary rod for multiple circles in the locking and releasing process, and improving the use efficiency of the self-locking device; and avoiding the influence of excessive locking or releasing on the use of the self-locking device;

[0022] The utility model discloses a locking device for locking axle by connecting sleeve, and locking axle is not directly connected with the annular opening locking plate, thereby avoiding the wear of the annular opening locking plate caused by long-term use, thereby preventing the use of the self-locking device from being affected, and increasing the stability of the lens swinging and rotating locking under long-term use, thereby improving the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a microscope equipped with a lens swinging and rotating self-locking device in an embodiment;

[0024] Figure 2 It is a structural schematic diagram of the self-locking device for lens swinging and rotating in the embodiment applied in a microscope;

[0025] Figure 3 It is a structural schematic diagram of the self-locking device for the lens swinging and rotating in the embodiment;

[0026] Figure 4 It is a schematic diagram of the structure of the groove on the central linkage shaft in the embodiment;

[0027] In the figure: 1-rotation limit locking mechanism, 11-locking rotary rod, 12-annular opening lock plate, 13-gear member, 14-gear matching member, 15-connecting sleeve, 16-shaft sleeve, 2-center linkage shaft, 21-groove, A-base assembly, B-fixed base. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] During the observation of an object under test with a microscope, when the microscope lens is rotated for side observation, it is necessary to lock the microscope lens at a fixed rotation angle. Based on this scheme, a self-locking device for lens swinging and rotating is proposed, which can lock the microscope lens at any fixed rotation angle. Example

[0030] A self-locking device for lens swinging and rotating, comprising a central linkage shaft 2, and a rotation limit locking mechanism 1 sleeved on the central linkage shaft 2, wherein the rotation limit locking mechanism 1 comprises: an annular opening locking plate 12 sleeved on the central linkage shaft 2; a locking rotary rod 11 movably arranged in holes provided at both ends of the opening of the annular opening locking plate 12, wherein both ends of the opening of the annular opening locking plate 12 approach each other based on the movable end of the locking rotary rod 11; and a locking gear assembly for blocking the movable travel of the locking rotary rod 11.

[0031] The microscope in this embodiment is equipped with a lens swing rotation self-locking device. Figure 1As shown, the microscope observation lens is connected to the central linkage shaft 2, and rotates and swings based on the rotation of the central linkage shaft 2, and the central linkage shaft 2 is locked in rotation by the rotation limit locking mechanism 1, thereby locking the observation lens at a fixed rotation angle. Specifically, the rotation limit locking mechanism 1 is connected to the base assembly A of the microscope, so that the components in the rotation limit locking mechanism 1 are fixedly arranged relative to the base assembly A, which facilitates the rotation limit locking mechanism 1 to lock or release the central linkage shaft 2.

[0032] In the rotation limiting locking mechanism 1, Figure 2 As shown, the annular opening lock plate 12 is sleeved on the central linkage shaft 2 and contacts the central linkage shaft 2. Extended locking baffles are provided at both ends of the opening of the annular opening lock plate 12, which facilitates the control of the tightening and loosening of the annular opening lock plate 12 through the extension piece, avoiding the influence of the inconvenience of the device structure position. Preferably, the two locking baffles corresponding to the two ends of the opening of the annular opening lock plate 12 are parallel to each other. The holes provided at both ends of the opening of the annular opening lock plate 12 are arranged at corresponding positions on the annular opening lock plate 12 that cooperate with the locking rotary rod 11. The locking rotary rod 11 movably arranged in the holes provided at both ends of the opening of the annular opening lock plate 12, the locking rotary rod 11 is movable and moves through but not limited to threaded cooperation and the like. Among them, a number of grooves 21 are provided at the connection between the central linkage shaft 2 and the annular opening lock plate 12, such as Figure 4 As shown, the connection between the central linkage shaft 2 and the annular opening locking plate 12 is a contact connection, and the direct metal-to-metal contact makes the friction fastening effect better; a plurality of grooves 21 are provided on the central linkage shaft 2 to increase the friction force of the contact between the annular opening locking plate 12 and the central linkage shaft 2, so that the locking process of the central linkage shaft 2 is better; further, the plurality of grooves 21 are distributed around the central linkage, and each groove 21 is a chamfered sharp angle, which is a V-shaped groove; further, the grooves 21 extend along the axial direction of the central linkage shaft 2.

[0033] Furthermore, since the locking and releasing of the central linkage shaft 2 is based on the movement of the locking rod 11, the two ends of the opening of the annular opening lock plate 12 are moved closer to or farther away from the other end based on the movement of the locking rod 11; further, one of the two ends of the opening of the annular opening lock plate 12 is fixedly arranged, and one of the two ends of the opening of the annular opening lock plate 12 can be connected to the base assembly A to achieve a fixed arrangement. In this embodiment, based on the threaded fit, the locking rod 11 is movably arranged in the holes provided at the two ends of the opening of the annular opening lock plate 12; and the threaded fit requires the locking rod 11 to rotate multiple times during the locking or releasing process of the central linkage shaft 2, making the locking and releasing process relatively cumbersome, affecting the efficiency of the use of the microscope; and, in the process of locking to releasing the annular opening lock plate 12, there is a transition release, which causes the locking rod 11 to be separated from the annular opening lock plate 12; or in the process of releasing to locking, the transition locking causes the annular opening lock plate 12 to be deformed by excessive force, thereby affecting the use of the microscope lens swing rotation lock. Therefore, a locking shift assembly is required to limit the active stroke of the locking or releasing process, thereby improving the use efficiency of the self-locking device and avoiding the impact of excessive locking or releasing on the use of the self-locking device.

[0034] Furthermore, in this embodiment, the locking rotary rod 11 adopts a trapezoidal screw rod to make the locking more stable. Among them, the locking shift assembly includes a shift member 13, and a shift matching member 14 arranged on the locking rotary rod 11 and moving with the locking rotary rod 11. In this embodiment, the shift member 13 in the locking shift assembly includes a locking shift member 13 and a releasing shift member 13, that is, a corresponding shift member 13 is provided for the locking rotary rod 11 in the active stroke of locking and releasing the central linkage shaft 2 of the rotation limit locking mechanism 1. Among them, the shift member is fixedly arranged, and the shift matching member 14 moves with the locking rotary rod 11. The positions of the locking stopper 13 and the releasing stopper 13 are set based on the distance between the two ends of the opening of the annular opening lock plate 12 and the thread pitch of the locking rotary rod 11, so that when the locking rotary rod 11 is rotated to the locking stopper 13, the central linkage shaft 2 is locked, and when the locking rotary rod 11 is rotated to the position of the releasing stopper 13, the central linkage shaft 2 is released.

[0035] The process of locking and releasing the center linkage shaft 2 by the self-locking device of the lens swinging rotation is as follows: The process of locking and releasing the center linkage shaft 2 by the self-locking device of the lens swinging rotation is as follows: The locking rotary rod 11 rotates toward the locking stopper 13, and the annular opening locking plate 12 moves based on the threaded cooperation of the locking rotary rod 11. When one end of the annular opening locking plate 12 is fixed, the other end moves toward the fixed end as the locking rotary rod 11 moves, so that the two ends of the opening of the annular opening locking plate 12 are close to each other, that is, the grip on the center linkage shaft 2 is tightened. Tighten, when the locking rotary rod 11 moves to the position corresponding to the locking stopper 13, the center linkage shaft 2 is locked, and the center linkage shaft 2 cannot move relative to the locking rotary rod 11; in addition, the locking rotary rod 11 rotates in the direction of the release stopper 13, and the other end of the annular opening locking plate 12 moves away from the fixed end as the locking rotary rod 11 moves, so that the annular opening locking plate 12 releases the embrace of the center linkage shaft 2, and when the locking rotary rod 11 moves to the position corresponding to the release stopper 13, the center linkage shaft 2 is released. Example

[0036] Based on a self-locking device for lens swing described in Example 1, the shifting member 13 in the locking shifting assembly adopts a shifting protrusion. Or the shifting member 13 can also adopt a shifting groove. The shifting member is fixedly arranged to block the movement of the locking rotary rod 11. If the shifting member adopts a shifting groove, the length range of the shifting groove is the length of the movable stroke of the locking rotary rod 11, and the two ends of the shifting groove respectively correspond to the locking position and the release position of the movement of the locking rotary rod 11, and then the shifting fitting member 14 can achieve the blocking of the movable stroke of the locking rotary rod 11 through the engagement of the limit column and the shifting groove. If the shifting member adopts a shifting protrusion, such as Figure 2 As shown in the figure, the shift member 13 is fixedly arranged on the fixed base B in the base assembly A by a shift protrusion, and the shift matching member 14 is fixedly arranged on the locking rotary rod 11. The shift matching member is provided with an extension member that cooperates with the shift protrusion to block the movable stroke of the locking rotary rod 11; the shift protrusion can be realized by but not limited to screws, etc.; it should be noted that the shift member is fixed and stationary, and can be set at the corresponding position of the fixed member that is adapted to block the matching with the shift matching member 14. Example

[0037] A self-locking device for lens swinging based on the first embodiment includes a connecting sleeve 15, which is sleeved on the locking rotary rod 11 and movably connected to the locking rotary rod 11. Furthermore, the connecting sleeve 15 is movably connected to the locking rotary rod 11 by threaded cooperation. If the locking rotary rod 11 is directly threadedly connected to the hole provided on the annular opening locking plate 12, the annular opening locking plate 12 is likely to be seriously worn out after long-term use, thereby affecting the locking or releasing effect of the locking rotary rod 11 and the annular opening locking plate 12, and reducing the service life of the rotation limit locking mechanism 1. Therefore, in this scheme, the locking rotary rod 11 does not contact the hole on the annular opening locking plate 12. Figure 3 As shown, the locking rotary rod 11 and the annular opening locking plate 12 are connected via the connecting sleeve 15, the connecting sleeve 15 is fixedly disposed in the hole of the annular opening locking plate 12, and is fixedly connected to the fixed base B via the shaft sleeve 16 to radially position the locking shaft, thereby driving the unfixed end of the opening of the annular opening locking plate 12 away from or closer to the fixed end based on the movement of the locking shaft; in this embodiment, the connecting sleeve 15 adopts but is not limited to a nut, and further, in order to increase wear resistance and prolong service life, the nut is made of copper to be more wear-resistant. It should be noted that the connecting sleeve 15 is not limited to being fixed in the hole of the annular opening locking plate 12, but can also be set on the fixed base B at a corresponding position based on the extension of the locking shaft 11, so that the locking shaft 11 passes through the hole on the annular opening locking plate 12 and moves in cooperation with the thread of the connecting sleeve 15. When one end of the opening of the annular opening locking plate 12 is fixed, the rotation of the locking shaft drives the unfixed end of the opening of the annular opening locking plate 12 to move away from or approach the fixed end, thereby realizing the release or locking of the annular opening locking plate 12 on the central linkage shaft 2. Among them, the rotation movement of the locking shaft 11 drives the unfixed end of the opening of the annular opening locking plate 12 to approach the fixed end in principle or approach, which can be achieved by the protruding extension fixed on the locking shaft 11 and the annular opening locking plate 12. Then, during the locking process of the central linkage rotating shaft 2 by the self-locking device of the lens swinging and rotating, the annular opening locking plate 12 moves based on the threaded cooperation of the locking rotary rod 11. When one end of the annular opening locking plate 12 is fixed, the other end approaches the fixed end with the movement of the locking rotary rod 11 under the resistance of the protruding extension fixed on the locking shaft 11, so that the two ends of the opening of the annular opening locking plate 12 are close to each other; during the release process, with the movement of the locking rotary rod 11, the protruding extension fixed on the locking shaft 11 moves away from the contacting part of the annular opening locking plate 12, and the annular opening locking plate 12 rebounds based on its own elasticity, so that the other end of the annular opening locking plate 12 moves away from the fixed end with the movement of the locking rotary rod 11.

[0038] The utility model designs a self-locking device for lens swinging and rotating, wherein a rotation limit locking mechanism 1 is sleeved on a central linkage rotating shaft 2, and based on the activity of a locking rotary rod 11 in the rotation limit locking mechanism 1, the locking and releasing of the central linkage rotating shaft 2 is realized; wherein, the activity stroke of the locking rotary rod 11 is blocked by a locking gear assembly, and the activity stroke of the locking rotary rod 11 in locking or releasing the central linkage rotating shaft 2 is limited, so that the locking rotary rod 11 can lock or release the central linkage rotating shaft 2 with a stroke of less than one circle, thereby avoiding the locking rotary rod 11 from rotating. The rod 11 needs to rotate the locking rotary rod 11 for multiple circles during the locking and releasing process, which improves the efficiency of the self-locking device; and avoids the influence of excessive locking or releasing on the use of the self-locking device; in addition, the utility model is sleeved on the locking shaft by the connecting sleeve 15, so that the locking shaft is not directly connected to the annular opening locking plate 12, thereby avoiding the wear of the annular opening locking plate 12 caused by long-term use, thereby affecting the use of the self-locking device, increasing the stability of the lens swing rotation locking under long-term use, and improving the service life of the device.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The above are only preferred embodiments of the utility model, but do not limit the patent scope of the utility model. Although the utility model is described in detail with reference to the above embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the above specific implementations, or replace some of the technical features with equivalents. Any equivalent structure made by using the contents of the utility model specification and drawings, directly or indirectly used in other related technical fields, is also within the scope of protection of the utility model patent.

Claims

1. A self-locking device for lens swinging and rotating, comprising a central linkage shaft (2), and a rotation limit locking mechanism (1) sleeved on the central linkage shaft (2), characterized in that: The rotation limiting locking mechanism (1) comprises: An annular opening lock plate (12) is sleeved on the central linkage shaft (2); The locking rotary rod (11) moves axially in holes provided on both sides of the opening of the annular opening locking plate (12), and based on the axial movement of the locking rotary rod (11), one side of the opening of the annular opening locking plate (12) approaches the other side; and A locking shifting assembly for blocking the axial movement of the locking rotating rod (11).

2. A self-locking device for lens swinging and rotating according to claim 1, characterized in that: The locking shift assembly comprises a shift piece (13) and a shift matching piece (14) arranged on the locking rotary rod (11) and moving with the locking rotary rod (11).

3. A self-locking device for lens swinging and rotating according to claim 2, characterized in that: The stopper (13) is a stopper protrusion.

4. A self-locking device for lens swinging and rotating according to claim 2, characterized in that: The shifting member (13) adopts a shifting groove.

5. The self-locking device for lens swinging and rotating according to claim 1, characterized in that: It comprises a connecting sleeve (15) which is sleeved on the locking rotary rod (11) and movably connected to the locking rotary rod (11).

6. A self-locking device for lens swinging and rotating according to claim 5, characterized in that: The connecting sleeve (15) is movably connected to the locking rotary rod (11) by threaded cooperation.

7. A self-locking device for lens swinging and rotating according to claim 5, characterized in that: The locking rotary rod (11) and the annular opening locking plate (12) are connected via the connecting sleeve (15).

8. The self-locking device for lens swinging and rotating according to claim 1, characterized in that: One of the two sides of the opening of the annular opening locking plate (12) is fixedly arranged.

9. The self-locking device for lens swinging and rotating according to claim 1, characterized in that: A plurality of grooves (21) are provided at the connection between the central linkage rotating shaft (2) and the annular opening locking plate (12).

10. A microscope equipped with a self-locking device for lens swing as claimed in claim 1.

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