CN212009137U

CN212009137U - Microscope convenient to change lens

Info

Publication number: CN212009137U
Application number: CN202021004373.3U
Authority: CN
Inventors: 潮兴兵; 孙光厚; 杨锋涛
Original assignee: Jiujiang University
Current assignee: Jiujiang University
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2020-11-24
Anticipated expiration: 2030-06-04

Abstract

The utility model provides a microscope convenient to change lens, including the mirror arm, the objective table, the eyepiece, the lens cone, the reflector, still including fixing the protecting crust at the lens cone lower extreme, be equipped with the commentaries on classics board in the protecting crust, commentaries on classics board center department is equipped with the perforation, be equipped with pivot one in the perforation, pivot one is fixed through connecting rod and commentaries on classics board, the protecting crust is passed through the bearing with the mirror arm to the upper end of pivot one and is connected, evenly distributed has four above mounting holes on the commentaries on classics board, the mounting hole is used for installing objective, the interval is the same between two adjacent mounting holes, be equipped with the action wheel in the perforation, action wheel center department is fixed with pivot two, pivot two passes through the bearing with the protecting crust and is connected, it is fixed with the rotation button to stretch out the protecting crust in two upper ends of pivot. The utility model discloses can conveniently change the objective of different multiples.

Description

Microscope convenient to change lens

Technical Field

The utility model relates to a microscopical technical field, concretely relates to microscope convenient to change lens.

Background

The biological microscope is a detection device for observing and researching biological slices, biological cells, bacteria, living tissue culture, fluid sediments and the like, and observing other transparent or semitransparent objects, powder, fine particles and the like. Generally, only three objective lenses can be clamped on the objective lens converter, so that the magnification factor is limited, and when the objective lenses are replaced, the objective lenses are difficult to disassemble and easy to damage.

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides a microscope convenient to change lens for solve the technical problem who proposes among the above-mentioned background art.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

a microscope convenient for replacing lenses comprises a lens arm, an objective table, an eyepiece, a lens barrel, a reflector and a protective shell fixed at the lower end of the lens barrel, wherein a rotating plate is arranged in the protective shell, a through hole is formed in the center of the rotating plate, a first rotating shaft is arranged in the through hole and fixed with the rotating plate through a connecting rod, the upper end of the first rotating shaft penetrates through the protective shell to be connected with the lens arm through a bearing, more than four mounting holes are uniformly distributed in the rotating plate and used for mounting an objective lens, the distance between every two adjacent mounting holes is the same, a driving wheel is arranged in the through hole, the center of the driving wheel is fixed with a second rotating shaft, the second rotating shaft is connected with the protective shell through a bearing, the upper end of the second rotating shaft extends out of the protective shell to be fixed with a rotating button, a wheel tooth section and a smooth section are, the gear tooth section is meshed with the gear teeth on the inner wall of the through hole.

Furthermore, an annular slide rail is fixed at the inner bottom end of the protective shell, and the rotating plate is installed on the annular slide rail.

Furthermore, a limiting sleeve is fixed at the upper end of the rotating plate and above the through hole, and an annular baffle is fixed at the upper end of the limiting sleeve.

Furthermore, the stop collar is a corrugated pipe.

Further, the lower end of the rotating plate is provided with a protective sleeve at the position of the through hole, the protective sleeve is sleeved outside the objective lens, the lower end of the rotating plate is provided with a clamping hole at the position of the through hole, and the protective sleeve is clamped with the clamping hole.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model can arrange a plurality of objective lenses in the mounting holes, and the objective lenses with different multiples can be conveniently replaced; secondly, when the objective lens is damaged, the objective lens can be replaced quickly.

The present invention will be explained in detail with reference to the drawings and specific embodiments.

Drawings

FIG. 1 is a front view of a microscope with lenses that are easily replaced according to the present invention;

FIG. 2 is a schematic structural view of the protection shell of the present invention;

fig. 3 is a top view of the transfer board of the present invention.

In the figure: 1. a scope arm; 2. an object stage; 3. an eyepiece; 4. a lens barrel; 5. a reflective mirror; 6. a protective shell; 7. rotating the plate; 8. perforating; 9. a first rotating shaft; 10. mounting holes; 11. an objective lens; 12. a driving wheel; 13. a second rotating shaft; 14. a knob is rotated; 15. a gear segment; 16. a smooth section; 17. gear teeth; 18. an annular slide rail; 19. a limiting sleeve; 20. an annular baffle; 21. a protective sleeve; 22. a clamping hole; 23. a connecting rod.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1-3, a microscope with easy lens replacement includes a microscope arm 1, an object stage 2, an eyepiece 3, a lens barrel 4, a reflector 5, and a protective shell 6 fixed at the lower end of the lens barrel 4, wherein a rotating plate 7 is arranged in the protective shell 6, an annular slide rail 18 is fixed at the inner bottom end of the protective shell 6, and the rotating plate 7 is mounted on the annular slide rail 18. The center of the rotating plate 7 is provided with a through hole 8, a first rotating shaft 9 is arranged in the through hole 8, the first rotating shaft 9 is fixed with the rotating plate 7 through a connecting rod 23, and the upper end of the first rotating shaft 9 penetrates through the protective shell 6 to be connected with the mirror arm 1 through a bearing. The rotating plate 7 is evenly provided with more than four mounting holes 10, the mounting holes 10 are used for mounting the objective lens 11, the shell of the objective lens 11 can be in threaded connection with the mounting holes 10, and the distance between every two adjacent mounting holes 10 is the same. A driving wheel 12 is arranged in the through hole 8, the center of the driving wheel 12 is fixed with a second rotating shaft 13, the second rotating shaft 13 is connected with the protective shell 6 through a bearing, and the upper end of the second rotating shaft 13 extends out of the protective shell 6 and is fixed with a rotating button 14. The periphery of the driving wheel 12 is provided with a gear tooth section 15 and a smooth section 16, the inner wall of the through hole 8 is uniformly provided with gear teeth 17, and the gear tooth section 15 is meshed with the gear teeth 17 on the inner wall of the through hole 8.

A limiting sleeve 19 is fixed at the upper end of the rotating plate 7 and above the through hole 8, an annular baffle 20 is fixed at the upper end of the limiting sleeve 19, the limiting sleeve 19 is a corrugated pipe, and the limiting sleeve 19 is sleeved outside the objective lens 11. The lower end of the rotating plate 7 is provided with a protective sleeve 21 at the position of the through hole 8, the protective sleeve 21 is sleeved outside the objective lens 11, a clamping hole 22 is formed at the lower end of the rotating plate 7 at the position of the through hole 8, and the protective sleeve 21 is clamped with the clamping hole 22.

The working principle of the utility model is as follows: when a new objective lens 11 needs to be replaced, the protective sleeve 21 and the old objective lens 11 are taken down, then the new objective lens 11 is placed into the mounting hole 10, the upper end of the shell of the objective lens 11 is in contact with the annular baffle 20, until the limiting sleeve 19 is not elongated any more, the protective sleeve 21 is sleeved outside the objective lens 11, and the protective sleeve 21 is clamped with the clamping hole 22. When the objective lens 11 with different multiples needs to be replaced in the using process, the rotating button 14 is rotated, the rotating button 14 drives the second rotating shaft 13 and the driving wheel 12 to rotate, and the driving wheel 12 drives the rotating plate 7 to rotate through the gear section 15, so that the required objective lens 11 rotates below the lens barrel 4. When the gear segment 15 finishes rotating, just one objective lens 11 is switched, and when the operator finds that the rotation is free of resistance, the operator can know that the objective lens 11 is switched in place.

The above description of the present invention is made in conjunction with the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and the method and the technical solution of the present invention are not substantially improved or directly applied to other occasions without improvement, and are all within the protection scope of the present invention.

Claims

1. The utility model provides a microscope convenient to change lens, includes mirror arm (1), objective table (2), eyepiece (3), lens cone (4), reflector (5), its characterized in that: the lens barrel further comprises a protective shell (6) fixed at the lower end of the lens barrel (4), a rotating plate (7) is arranged in the protective shell (6), a through hole (8) is formed in the center of the rotating plate (7), a first rotating shaft (9) is arranged in the through hole (8), the first rotating shaft (9) is fixed with the rotating plate (7) through a connecting rod (23), the upper end of the first rotating shaft (9) penetrates through the protective shell (6) to be connected with the lens arm (1) through a bearing, more than four mounting holes (10) are uniformly distributed in the rotating plate (7), the mounting holes (10) are used for mounting an objective lens (11), the distance between every two adjacent mounting holes (10) is the same, a driving wheel (12) is arranged in the through hole (8), the center of the driving wheel (12) is fixed with a second rotating shaft (13), the second rotating shaft (13) is connected with the protective shell (6) through a bearing, the upper end of the second rotating shaft (13) extends out of the, be equipped with teeth of a cogwheel section (15) and smooth section (16) on action wheel (12) periphery, evenly be equipped with teeth of a cogwheel (17) on perforation (8) inner wall, wheel teeth section (15) are connected with the teeth of a cogwheel (17) meshing of perforation (8) inner wall.

2. A microscope for facilitating lens replacement according to claim 1, wherein: an annular sliding rail (18) is fixed at the inner bottom end of the protective shell (6), and the rotating plate (7) is installed on the annular sliding rail (18).

3. A microscope for facilitating lens replacement according to claim 1, wherein: the upper end of the rotating plate (7) is positioned above the through hole (8) and is fixed with a limiting sleeve (19), and the upper end of the limiting sleeve (19) is fixed with an annular baffle (20).

4. A microscope for facilitating lens replacement according to claim 3, wherein: the limiting sleeve (19) is a corrugated pipe.

5. A microscope for facilitating lens replacement according to claim 1, wherein: it is equipped with protective sheath (21) just to be located perforation (8) department to change board (7) lower extreme, protective sheath (21) cover is established outside objective (11), it is equipped with card hole (22) just to be located perforation (8) department to change board (7) lower extreme, protective sheath (21) and card hole (22) block.