CN218956910U

CN218956910U - Auxiliary focusing device of microscope

Info

Publication number: CN218956910U
Application number: CN202222062977.9U
Authority: CN
Inventors: 孙雪骐; 黄麒睿
Original assignee: Ganzhou Peoples Hospital
Current assignee: Ganzhou Peoples Hospital
Priority date: 2022-08-05
Filing date: 2022-08-05
Publication date: 2023-05-02
Anticipated expiration: 2032-08-05

Abstract

The utility model relates to the field of microscopes, and discloses an auxiliary focusing device of a microscope, wherein the auxiliary focusing device is provided with a supporting main body, and the supporting main body is provided with: the first synchronous belt pulley is connected with a coarse focusing knob of the microscope; the second synchronous pulley is connected with a fine focusing knob of the microscope; the third synchronous pulley is fixedly provided with a fine focusing auxiliary knob; a fourth synchronous pulley is fixedly provided with a coarse focusing auxiliary knob; the first synchronous belt pulley is connected with the fourth synchronous belt pulley through the first synchronous belt, and the coarse focusing auxiliary knob of the fourth synchronous belt pulley is rotated to drive the first synchronous belt pulley so as to adjust the coarse focusing knob of the microscope; the second synchronous belt pulley is connected with the third synchronous belt pulley through the second synchronous belt, and the fine focusing auxiliary knob of the third synchronous belt pulley is rotated to drive the second synchronous belt pulley so as to adjust the fine focusing knob of the microscope. The utility model discloses can avoid the discomfort that the user warp the wrist and bring for a long time, can also be suitable for the use of the user of different sizes.

Description

Auxiliary focusing device of microscope

Technical Field

The utility model relates to the field of microscopes, in particular to an auxiliary focusing device of a microscope.

Background

The microscope is used as a tool for people to see smaller, and is widely applied to life production. Depending on the application, microscopes can be broadly classified into biological microscopes, stereoscopic microscopes, metallographic microscopes, polarized microscopes, fluorescence microscopes and tool microscopes; in order to clearly observe objects, a focusing structure is arranged in the microscope, and the lifting of a microscope joint is regulated by rotating a focusing knob, so that the aim of accurately focusing is fulfilled. The position of the focusing knob on the microscope in the prior art is fixed, which means that the distance between the focusing knob and the desktop is fixed, but in actual use, the elbow joint of a user props up the forearm on the desktop, the wrist joint is tilted and rotated to adjust the focusing knob, and the posture is easy to cause ache at the wrist on one hand and cause discomfort to people with different body types on the other hand for workers needing to use the microscope for a long time, and the fixed distance between the focusing knob and the desktop is different in length.

Disclosure of Invention

The utility model aims to solve the problem of discomfort of a user caused by the fixed distance between a focusing knob and a tabletop in the prior art, and provides an auxiliary focusing device for a microscope, which can avoid the discomfort caused by long-term upward tilting of a wrist of the user and is also suitable for users with different height body types.

In order to achieve the above object, the present utility model provides an auxiliary focusing apparatus for a microscope, which is provided with a support body provided with, from top to bottom:

the first synchronous belt pulley is connected with a coarse focusing knob of the microscope;

the second synchronous pulley is connected with a fine focusing knob of the microscope;

the third synchronous pulley is fixedly provided with a fine focusing auxiliary knob;

a fourth synchronous pulley is fixedly provided with a coarse focusing auxiliary knob;

the first synchronous belt pulley is connected with the fourth synchronous belt pulley through a first synchronous belt, and the coarse focusing auxiliary knob of the fourth synchronous belt pulley is rotated to drive the first synchronous belt pulley so as to adjust the coarse focusing knob of the microscope;

the second synchronous pulley is connected with the third synchronous pulley through a second synchronous belt, and the fine focusing auxiliary knob of the third synchronous pulley is rotated to drive the second synchronous pulley so as to adjust the fine focusing knob of the microscope.

Further, a first connecting piece used for connecting the coarse focusing knob is fixedly arranged on a spoke of the first synchronous pulley, and the first connecting piece is an annular cylinder.

Further, one end of the first connecting piece is connected with a combining part sleeved outside the coarse focusing knob, and the combining part is provided with a concave space matched with the coarse focusing knob.

Further, the joint is detachably provided on the first connecting member.

Further, a second connecting piece used for connecting the fine focusing knob is fixedly arranged on a spoke of the second synchronous pulley, and the second connecting piece is an annular cylinder.

Further, one end of the second connecting piece is connected with a matching part sleeved outside the coarse focusing knob, and the matching part is provided with a groove matched with the coarse focusing knob.

Further, the mating portion is detachably provided on the second connecting member.

Further, the device comprises a base rotatably connected with the support body, and the base is arranged in a truncated cone shape.

Further, the top end of the base is provided with an installation ear seat which is used for installing the supporting main body in an upward extending mode.

Further, the bottom of the supporting main body is arranged in a semicircular shape, and a groove matched with the semicircular bottom of the supporting main body is formed in the middle of the mounting ear seat.

Through the technical scheme, the first synchronous belt pulley is connected with the fourth synchronous belt pulley through the first synchronous belt, and the coarse focusing auxiliary knob of the fourth synchronous belt pulley is rotated to drive the first synchronous belt pulley so as to adjust the coarse focusing knob of the microscope; the second synchronous pulley is connected with the third synchronous pulley through the second synchronous belt, the fine focusing auxiliary knob of the third synchronous pulley is rotated to drive the second synchronous pulley so as to adjust the fine focusing knob of the microscope, so that the coarse focusing knob and the fine focusing knob which are positioned above the microscope arm are transferred to the lower part, wrist ache caused by the fact that the elbow joint of a user props up on a tabletop to lift the forearm, the wrist joint is lifted up and rotated to adjust the focusing knob is avoided, and on the other hand, the auxiliary focusing device provided by the utility model enables the microscope to adapt to people with different sizes, discomfort caused by different lengths of the forearms of users with different sizes can be avoided, and accordingly, the working comfort and the working efficiency are improved.

Drawings

FIG. 1 is an auxiliary focusing apparatus for a microscope in accordance with a preferred embodiment of the present utility model;

fig. 2 is an auxiliary focusing device of a microscope of another mounting form of the present utility model.

Description of the reference numerals

10 a support body; 20 a first synchronous pulley; 21 a first connector; 22 joint portions; 25 a first synchronization belt; a second synchronous pulley 30; 31 a second connector; 32 mating parts; 34 a second timing belt; 40 a third synchronous pulley; a fine focus assist knob 41; a fourth synchronous pulley 50; 51 coarse focus assist knob; a 60 base; 61 mount the ear mount.

Detailed Description

The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.

In the present utility model, unless otherwise indicated, terms of orientation such as "upper and lower" are used to generally refer to orientations in the assembled state of use. "inner and outer" means inner and outer relative to the contour of the respective parts themselves.

As shown in fig. 1, the utility model discloses an auxiliary focusing device of a microscope, the auxiliary focusing device is provided with a supporting main body 10, and the supporting main body 10 is provided with: a first synchronous pulley 20 connected with a coarse focusing knob of the microscope, a second synchronous pulley 30 connected with a fine focusing knob of the microscope, a third synchronous pulley 40 fixedly provided with a fine focusing auxiliary knob 41, and a fourth synchronous pulley 50 fixedly provided with a coarse focusing auxiliary knob 51; thus, the first synchronous pulley 20 is connected with the fourth synchronous pulley 50 through the first synchronous belt 25, and the coarse focusing auxiliary knob 51 of the fourth synchronous pulley 50 is rotated to drive the first synchronous pulley 20 so as to adjust the coarse focusing knob of the microscope; the second synchronous pulley 30 is connected with the third synchronous pulley 40 through the second synchronous belt 34, and the fine focusing auxiliary knob 41 of the third synchronous pulley 40 is rotated to drive the second synchronous pulley 30 so as to adjust the fine focusing knob of the microscope.

Specifically, as shown in fig. 1, the supporting body 10 is a metal plate, 4 through holes are formed in the metal plate, four synchronous pulleys are sequentially arranged from top to bottom through bearings installed in the through holes, and the first synchronous pulley 20 and the fourth synchronous pulley 50 are connected through a first synchronous belt 25 to form a first synchronous pulley pair for adjusting a coarse focusing knob; the second timing pulley 30 and the third timing pulley 40 form a second timing pulley set for adjusting the fine focus knob by the second timing belt 34; the sizes of all parts in the second synchronous pulley pair are smaller than those of the second synchronous pulley pair, and the second synchronous pulley pair is positioned in the middle of the first synchronous pulley pair to form an inner sleeved mode; by means of the arrangement, the coarse focusing knob and the fine focusing knob which are located above the microscope arm are transferred to the lower side through the first synchronous pulley pair and the second synchronous pulley pair, the supporting main body 10 can be fixed (for example, welded) on the base of the microscope when the microscope is used, the coarse focusing knob of the microscope is adjusted through adjusting the coarse focusing auxiliary knob 51, the fine focusing knob of the microscope is adjusted through adjusting the fine focusing auxiliary knob 41, therefore, wrist ache caused by the fact that a user leans against a tabletop to prop up the forearm, the wrist joint is tilted and rotated to adjust the focusing knob can be avoided, on the other hand, the auxiliary focusing device can enable the microscope to adapt to people of different sizes, discomfort caused by different lengths of the forearms of users of different sizes can be avoided, and accordingly work comfort and work efficiency can be improved.

To facilitate the user to adjust the fine focus assist knob 41 and the coarse focus assist knob 51, further, the outer surfaces of the fine focus assist knob 41 and the coarse focus assist knob 51 in contact with the hand are provided as rough surfaces for increasing friction; alternatively, the fine focus auxiliary knob 41 and the coarse focus auxiliary knob 51 are provided as quincuncial knobs.

Further, a first connecting piece 21 for connecting the coarse focusing knob is fixedly arranged on a spoke of the first synchronous pulley 20, and the first connecting piece 21 is an annular cylinder. Specifically, the first connecting piece 21 may be directly connected with the coarse focusing knob on the microscope (for example, the first connecting piece 21 is directly glued and fixed with the coarse focusing knob), and of course, for convenient installation and disassembly, one end of the first connecting piece 21 is connected with a combining part 22 sleeved outside the coarse focusing knob, the combining part 22 is provided with a concave space adapted to the coarse focusing knob, it should be noted that, in the prior art, microscopes of different types have coarse focusing knobs of different shapes, the concave space of the combining part 22 can be sleeved outside the coarse focusing knob, for example, the coarse focusing knob is quincuncial, and the combining part 22 has a quincuncial concave space slightly larger than the outline of the coarse focusing knob, therefore, when in use, the combining part 22 can be directly sleeved outside the coarse focusing knob, and the depth of the concave space of the combining part 22 can be 3-4 times the thickness of the coarse focusing knob; in order to accommodate different shaped coarse focus knobs, the coupling parts 22 are detachably provided on the first coupling member 21, whereby the coupling parts 22 having corresponding concave spaces can be replaced according to the different shaped coarse focus knobs.

And the same as the coarse focusing knob of the microscope, a second connecting piece 31 for connecting the fine focusing knob is fixedly arranged on a spoke of the second synchronous pulley 30, and the second connecting piece 31 is an annular cylinder. The second connecting piece 31 can be directly glued with a fine focusing knob on a microscope, and for convenient installation and disassembly, one end of the second connecting piece 31 is connected with a matching part 32 sleeved outside the coarse focusing knob, the matching part 32 is provided with a groove matched with the coarse focusing knob, when in use, the matching part 32 can be directly sleeved outside the fine focusing knob, and the depth of the groove of the matching part 32 can be 3-4 times of the thickness of the fine focusing knob; in order to accommodate different shapes of fine focus knobs, further, the mating part 32 is detachably provided on the second connection member 31.

When the microscope is used, sometimes the connecting line of the coarse focusing knob and the fine focusing knob is not necessarily vertical to the horizontal plane, for this purpose, the device comprises a base 60 rotatably connected with the supporting body 10, so when the microscope is used, the supporting body 10 can rotate, the supporting body 10 is parallel to the connecting line of the coarse focusing knob and the fine focusing knob, in addition, the auxiliary focusing device is not integrally arranged with the microscope, the microscope is convenient to move, the microscope is not fixed in the microscope, the base 60 is in a round table shape, the top end of the base 60 extends upwards to be provided with a mounting lug seat 61 for mounting the supporting body 10, specifically, the bottom end of the supporting body 10 is in a semicircular shape, a semicircular groove matched with the semicircular bottom end of the supporting body 10 is formed in the middle of the mounting lug seat 61, the supporting body 10 and the mounting lug seat 61 can be connected through bolts, gaskets can be arranged between the supporting body 10 and two side walls of the semicircular groove, and when the rotating angle is needed, the bolts are loosened to rotate the supporting body along the arc outline of the semicircular groove, so that the bolts are parallel to the connecting line of the coarse focusing knob and the fine focusing knob.

Of course, the first and

second connection members

21 and 32 may also be provided in a telescopic form, so that the distance of the auxiliary focusing device from the microscope can be adjusted.

In order to provide the auxiliary focus adjustment device with a stable center of gravity, the support body 10 and the base 61 may be made of a relatively heavy material, such as a ferrous material, and the first pulley 20, the second pulley 30, the third pulley 40, the fourth pulley 50, the first link 21 and the second link 32 may be made of a light material, such as an aluminum alloy; in order to ensure the focusing accuracy of the auxiliary focusing device, the matching accuracy between the first synchronous pulley 20, the fourth synchronous pulley 50 and the first synchronous belt 25 may be improved; the accuracy of the engagement of the second timing pulley 30, the third timing pulley 40, and the second timing belt.

It should be noted that, the above technical solution is suitable for application occasions where the focusing button is located at the upper part of the microscope, and the heights of the fine focusing auxiliary knob 41 and the coarse focusing auxiliary knob 51 can be adjusted by rotating the supporting body 10 to adjust the included angle with the horizontal plane; of course, in the prior art, there is a case where the focusing knob is located at the lower portion of the microscope, and the present utility model can be simply modified according to the actual use requirement, for example, the base 61 is mounted on the top end of the supporting body 10, so that the whole auxiliary focusing device is turned over (as shown in fig. 2), and the first connector 21 and the second connector 32 are located below to connect the focusing knob located at the lower portion of the microscope, thereby focusing by adjusting the fine focusing auxiliary knob 41 and the coarse focusing auxiliary knob 51.

The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited thereto. Within the scope of the technical idea of the utility model, a plurality of simple variants of the technical proposal of the utility model can be carried out, comprising that each specific technical feature is combined in any suitable way, and in order to avoid unnecessary repetition, the utility model does not need to be additionally described for various possible combinations. Such simple variations and combinations are likewise to be regarded as being within the scope of the present disclosure.

Claims

1. An auxiliary focusing device of a microscope, characterized in that the auxiliary focusing device is provided with a supporting body (10), the supporting body (10) is provided with from top to bottom:

a first synchronous pulley (20) connected with a coarse focusing knob of the microscope;

a second synchronous pulley (30) connected with a fine focus knob of the microscope;

a third synchronous pulley (40) fixedly provided with a fine focusing auxiliary knob (41);

a fourth synchronous pulley (50) fixedly provided with a coarse focusing auxiliary knob (51);

the first synchronous belt pulley (20) is connected with the fourth synchronous belt pulley (50) through a first synchronous belt (25), and the coarse focusing auxiliary knob (51) of the fourth synchronous belt pulley (50) is rotated to drive the first synchronous belt pulley (20) so as to adjust the coarse focusing knob of the microscope;

the second synchronous pulley (30) is connected with the third synchronous pulley (40) through a second synchronous belt (34), and the fine focusing auxiliary knob (41) of the third synchronous pulley (40) is rotated to drive the second synchronous pulley (30) so as to adjust the fine focusing knob of the microscope.

2. An auxiliary focusing device according to claim 1, characterized in that a first connecting piece (21) for connecting the coarse focusing knob is fixedly arranged on a spoke of the first synchronous pulley (20), and the first connecting piece (21) is an annular cylinder.

3. An auxiliary focusing device according to claim 2, wherein one end of the first connecting piece (21) is connected with a combining part (22) sleeved outside the coarse focusing knob, and the combining part (22) is provided with a concave space matched with the coarse focusing knob.

4. An auxiliary focusing apparatus according to claim 3, wherein said engaging portion (22) is detachably provided on said first connecting member (21).

5. An auxiliary focusing device according to claim 1, characterized in that a second connecting piece (31) for connecting the fine focus knob is fixedly arranged on a spoke of the second synchronous pulley (30), and the second connecting piece (31) is an annular cylinder.

6. An auxiliary focusing device according to claim 2, characterized in that one end of the second connecting piece (31) is connected with a matching part (32) sleeved outside the coarse focusing knob, and the matching part (32) is provided with a groove matched with the coarse focusing knob.

7. An auxiliary focusing apparatus according to claim 6, wherein said fitting portion (32) is detachably provided on said second connecting member (31).

8. An auxiliary focusing apparatus according to claim 1, characterized in that the apparatus comprises a base (60) rotatably connected to said support body (10), said base (60) being provided in the shape of a truncated cone.

9. An auxiliary focusing apparatus according to claim 8, wherein a top end of said base (60) is provided with a mounting ear mount (61) for mounting said support body (10) protruding upward.

10. The auxiliary focusing device according to claim 9, wherein the bottom end of the supporting body (10) is provided with a semicircle, and a groove adapted to the semicircle bottom end of the supporting body (10) is provided in the middle of the mounting ear seat (61).