CN210666185U

CN210666185U - Microscope objective switching mechanism

Info

Publication number: CN210666185U
Application number: CN201922153988.6U
Authority: CN
Inventors: 徐正平
Original assignee: Sichuan Orienter Biotechnology Co Ltd
Current assignee: Sichuan Orienter Biotechnology Co Ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-06-02
Anticipated expiration: 2029-12-04

Abstract

The utility model discloses a microscope objective switching mechanism, including the pivot that is used for installing objective, be used for driving pivot pivoted power device, fixed axle, first lifter plate, rack-mounted second lifter plate, be used for driving the lift drive arrangement that first lifter plate goes up and down, first lifter plate and second lifter plate sliding connection, the fixed axle sets up on first lifter plate, and the pivot cover is on the fixed axle, and the pivot can center on the fixed axle rotation. The power device drives the rotating shaft to rotate, so that the objective lens is switched, the first lifting plate is connected with the second lifting plate in a sliding mode, the first lifting plate moves up and down along the second lifting plate under the action of the lifting driving device, the objective lens can be switched, the objective lens can also move up and down, and focusing can be achieved.

Description

Microscope objective switching mechanism

Technical Field

The utility model relates to a microscope field, concretely relates to microscope objective switching mechanism.

Background

In the field of medical examination, microscopes are common equipment, and with the rapid development of automation, instrumental automated microscopy has almost replaced manual microscopy. The general microscope objective lens mounting base can not carry the objective lens to move up and down to realize the focusing of the microscope except that the objective lens can be switched, but can move up and down to realize the focusing of the microscope through the objective table, and the condition can lead to the overlarge structural size of the objective table, thereby leading to the overlarge integral size of the microscope. In particular, in an automatic microscopic examination apparatus for medical use, since the integration of the apparatus is high and the space left for the microscope is not sufficient, the microscope cannot be directly applied to an apparatus having a space requirement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a microscope objective switching mechanism, the technical problem of solution is that general microscope objective base is except realizing that objective switches, can not take objective to reciprocate and realize the microscope and focus, causes the microscope overall structure bigger than normal, occupies great space, realizes the automatic switch-over of objective, can also realize microscope auto focus, shifts the function that the objective table reciprocated to this device on, has realized the rational distribution in space, helps reducing microscope overall structure size.

The utility model discloses a following technical scheme realizes:

the utility model provides a microscope objective switching mechanism, is including the pivot that is used for installing objective, be used for driving pivot pivoted power device, fixed axle, first lifter plate, rack-mounted second lifter plate, be used for driving the lift drive device that first lifter plate goes up and down, first lifter plate and second lifter plate sliding connection, the fixed axle sets up on first lifter plate, and the pivot cover is on the fixed axle, and the pivot can center on the fixed axle rotation.

The objective lens conversion and focusing functions in a common microscope are realized separately, the objective lens cannot move up and down, the overall structure of the microscope is larger for realizing the focusing and objective lens conversion, and the instrument volume is larger for instruments with installation space requirements due to the application of the common microscope. The utility model provides a microscope objective switching mechanism, including the pivot that is used for installing objective, be used for driving pivot pivoted power device, fixed axle, first lifter plate, rack-mounted second lifter plate, be used for driving the lift drive device that first lifter plate goes up and down, first lifter plate and second lifter plate sliding connection, the fixed axle sets up on first lifter plate, and the pivot cover is on the fixed axle, and the pivot can rotate around the fixed axle, and the pivot is used for installing the objective of different specifications, and the fixed axle is used for supporting the pivot, and elevating system, simple structure have been constituteed with the second lifter plate to first lifter plate.

Preferably, the first lifting plate is of a U-shaped structure, the U-shaped structure comprises a first connecting end, a second connecting end and a lifting end, the two sides parallel to each other in the U-shaped structure are respectively the first connecting end and the second connecting end, the two sides parallel to each other in the U-shaped structure are connected with the lifting end, a gap formed by the first connecting end, the second connecting end and the lifting end is a connecting area, the second lifting plate is arranged on one side of the lifting end, which is far away from the connecting area, the lifting driving device is arranged on one side of the first lifting plate, and the two ends of the fixed shaft are respectively connected with one sides of the first connecting end and the second connecting end. The rotating shaft, the fixed shaft, the objective lens and other components are positioned in the connecting area, and the components are highly integrated, so that the overall structure of the objective lens switching mechanism is compact. The power device and the fixed shaft are arranged on the first lifting plate, the first lifting plate can move up and down along the second lifting plate under the action of the lifting driving device, and the rotating shaft rotates around the fixed shaft through the power device so as to switch the objective lenses with different specifications.

Preferably, power device includes driving motor, driving pulley, hold-in range, driven pulleys, motor support, driving motor is connected with driving pulley, and driven pulleys is connected with the one end of pivot, and driving pulley passes through the hold-in range with driven pulleys and is connected, motor support installs on first lifter plate, and driving motor installs on motor support.

Preferably, the first lifting plate and the second lifting plate are slidably connected through a cross guide rail.

Preferably, still include the elastic positioning subassembly, the elastic positioning subassembly includes briquetting, spring, steel ball, spring one end is connected with the steel ball, and the spring other end is connected with the briquetting, spring and steel ball all are located the briquetting inside, and the steel ball can stretch out the briquetting, the elastic positioning subassembly sets up in the pivot. The elastic positioning assembly is used for increasing the rotation damping between the rotating shaft and the fixing shaft, so that the objective lens cannot shake when the photographing is carried out, and the microscope can be accurately positioned under the long-time operation.

Preferably, the lifting driving device comprises a lifting connecting block, a lifting motor, a worm and gear assembly, a focusing rotating shaft, a focusing assembly fixing seat, a focusing nut and a focusing screw rod, the lifting connecting block is arranged on a first lifting plate, the lifting motor is connected with the worm and gear assembly, the worm and gear assembly is connected with one end of the focusing rotating shaft, the other end of the focusing rotating shaft is connected with the focusing nut, one end of the focusing screw rod is connected with the focusing nut, the other end of the focusing screw rod is connected with the lifting connecting block, the lifting motor is arranged on the focusing assembly fixing seat, and the worm and gear assembly and the focusing rotating shaft are both located in the focusing assembly fixing seat. The lifting motor is used as a power source of the lifting driving device, pushes the lifting connecting block to move up and down, and drives the first lifting plate to slide up and down along the second lifting plate.

Preferably, the pivot is cavity tubular structure, it has a plurality of rectangle recesses that are used for installing objective to open on the circumference outer wall of pivot, open the through-hole that has the intercommunication pivot in the middle of the centre of rectangle recess. Further, it has a breach to open on the pivot circumference, the breach is used for holding photographic means, and the pivot expandes the plane after, the breach is the rectangle breach, the rectangle recess is located the breach below, and the purpose is guaranteed the light path intercommunication between camera and the objective, can carry out the mirror examination and shoot.

Preferably, the number of the rectangular grooves is 2, the included angle between the axes of the 2 rectangular grooves is 60 degrees, the objective lenses installed in the rectangular grooves are 10X objective lenses and 40X objective lenses, and the included angle between the two objective lenses is 60 degrees.

Preferably, the included angle between the axes of the two adjacent rectangular grooves is 10-90 degrees, the objective lenses with different multiples can be installed on the rotating shaft through the plurality of rectangular grooves formed in the rotating shaft, and the smaller the included angle between the two adjacent rectangular grooves is, the more the number of the installed objective lenses is.

Preferably, the rotating shaft is connected with the fixed shaft through bearings, and the two bearings are respectively assembled at two ends of the fixed shaft, and the rotating shaft is rotated around the fixed shaft through the bearings.

Preferably, a through hole is formed in the middle of the fixing shaft, the axis of the through hole is perpendicular to the axis of the fixing shaft, and the through hole is formed to facilitate a camera above the fixing shaft to photograph a sample below the objective lens.

The utility model discloses a theory of operation does: when the lens needs to be switched, the rotating shaft is driven to rotate through the power device, and switching between the 10X objective lens and the 40X objective lens is achieved. When focusing is needed, the lifting driving device drives the first lifting plate to move up and down, and focusing is achieved.

The utility model discloses following beneficial effect has:

1. the fixed shaft is wrapped by the rotating shaft, the rotating shaft can rotate around the fixed shaft, one end of the rotating shaft is connected with the power device, the objective lenses of different specifications are installed on the rotating shaft, and the power device drives the rotating shaft to rotate so as to realize objective lens switching. The rotating shaft, the fixed shaft and the power device are installed on the first lifting plate, the first lifting plate is connected with the second lifting plate in a sliding mode, the first lifting plate moves up and down along the second lifting plate under the action of the lifting driving device, switching of the objective lens can be achieved, the objective lens can also move up and down, and focusing is achieved.

2. Through the U type structure of first lifter plate, with fixed axle, pivot, objective etc. integrated in the joining region, reduce the space between the fixed axle pivot for the overall structure of objective switching mechanism is compact, and then makes microscopical overall structure slightly littleer, is favorable to the interior space overall arrangement of microscopic examination instrument.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a schematic view of an objective switching mechanism according to an embodiment of the present invention.

Fig. 2 is a schematic side view of an objective switching mechanism according to an embodiment of the present invention.

Fig. 3 is a whole sectional view of the objective switching mechanism according to the embodiment of the present invention.

Fig. 4 is a schematic view of an elastic positioning assembly according to an embodiment of the present invention.

Fig. 5 is a cross-sectional view of a lift driving device according to an embodiment of the present invention.

Reference numbers and corresponding part names: 1-a rotating shaft, 101-a rectangular groove, 2-a power device, 201-a driving motor, 202-a driving pulley, 203-a synchronous belt, 204-a driven pulley, 205-a motor bracket, 3-a fixed shaft, 4-a first lifting plate, 401-a first connecting end, 402-a second connecting end, 403-a lifting end, 404-a connecting area, 5-a second lifting plate, 6-a lifting driving device, 601-a lifting connecting block, 602-a lifting motor, 603-a worm gear assembly, 604-a focusing rotating shaft, 605-a focusing assembly fixing base, 606-a focusing nut, 607-a focusing screw rod, 7-an elastic positioning assembly, 701-a pressing block, 702-a spring, 703-a steel ball, 8-a photographic device, 801-a digital camera, 802-camera connecting sleeve, 803-adapter sleeve and 804-sensor.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Example 1:

as shown in fig. 1 to 5, a microscope objective switching mechanism includes a rotating shaft 1 for mounting an objective, a power device 2 for driving the rotating shaft 1 to rotate, a fixed shaft 3, a first lifting plate 4, a second lifting plate 5 mounted on a frame, and a lifting driving device 6 for driving the first lifting plate 4 to lift, wherein the first lifting plate 4 is connected with the second lifting plate 5 in a sliding manner, the fixed shaft 3 is arranged on the first lifting plate 4, a base of the rotating shaft 1 is sleeved on the fixed shaft 3, and the rotating shaft 1 can rotate around the fixed shaft 3.

In this embodiment, the first lifting plate 4 is a U-shaped structure, the U-shaped structure includes a first connection end 401, a second connection end 402, and a lifting end 403, two sides of the U-shaped structure that are parallel to each other are the first connection end 401 and the second connection end 402, respectively, two sides of the U-shaped structure that are parallel to each other are the lifting end 403, a gap formed by the first connection end 401, the second connection end 402, and the lifting end 403 is a connection area 404, the second lifting plate 5 is disposed on a side of the lifting end 403 that is away from the connection area 404, the lifting driving device 6 is disposed on a side of the first lifting plate 4, and two ends of the fixing shaft 3 are connected to one sides of the first connection end 401 and the second connection end 402, respectively.

Further, the power device 2 includes a driving motor 201, a driving pulley 202, a synchronous belt 203, a driven pulley 204, and a motor support 205, the driving motor 201 is connected to the driving pulley 202, the driven pulley 204 is connected to one end of the rotating shaft 1, the driving pulley 202 is connected to the driven pulley 204 through the synchronous belt 203, the motor support 205 is installed on the first lifting plate 4, and the driving motor 201 is installed on the motor support 205.

Furthermore, the first lifting plate 4 is connected with the second lifting plate 5 through a cross guide rail, the rotating shaft 1 is connected with the fixed shaft 3 through two pairs of bearings, and the two pairs of bearings are respectively arranged at two ends of the fixed shaft 3.

Example 2:

as shown in fig. 1 to 5, in this embodiment, a further limitation is made on the basis of embodiment 1, the lifting driving device 6 includes a lifting connection block 601, a lifting motor 602, a worm gear assembly 603, a focusing rotation shaft 604, a focusing assembly fixing base 605, a focusing nut 606, and a focusing screw 607, the lifting connection block 601 is disposed on the first lifting plate 4, the lifting motor 602 is connected to the worm gear assembly 603, the worm gear assembly 603 is connected to one end of the focusing rotation shaft 604, the other end of the focusing rotation shaft 604 is connected to the focusing nut 606, one end of the focusing screw 607 is connected to the focusing nut 606, the other end of the focusing screw 607 is connected to the lifting connection block 601, the lifting motor 602 is disposed on the focusing assembly fixing base 605, and the worm gear assembly 603 and the focusing rotation shaft 604 are both located in the focusing assembly fixing base 605.

In this embodiment pivot 1 is cavity tubular structure, it has 2 rectangle recesses 101 that are used for installing objective to open on the circumference outer wall of pivot 1, and the contained angle between the axis of 2 rectangle recesses 101 is 60, open the through-hole that has intercommunication pivot 1 in the middle of rectangle recess 101. A rectangular notch is further formed in the circumference of the rotating shaft 1, the rectangular notch is used for being penetrated by the adapter sleeve 803 mounted on the fixed shaft 3, and the rectangular groove 101 is located below the rectangular notch.

Example 3:

as shown in fig. 1 to 5, the present embodiment is further limited to embodiment 1, in which a through hole is formed in the middle of the fixing shaft 3, an axis of the through hole is perpendicular to an axis of the fixing shaft 3, a rectangular notch is further formed on the circumference of the fixing shaft 3, the rectangular notch is rectangular in a top view of the fixing shaft 3, and the axis of the through hole is perpendicular to the rectangular notch.

Still include camera device 8, camera device 8 includes digital camera 801, camera adapter sleeve 802, adapter sleeve 803, sensor 804, camera adapter sleeve 802, adapter sleeve 803 are the cavity tubular structure, adapter sleeve 803 one end is connected with fixed axle 3, and the terminal surface and the laminating of rectangle breach of adapter sleeve 803, the other end and the one end of camera adapter sleeve 802 of adapter sleeve 803 are connected, the other end and the digital camera 801 of camera adapter sleeve 802 are connected, the axis coincidence between camera adapter sleeve 802, adapter sleeve 803 both, sensor 804 sets up on first link 401, confirm the objective position through sensor 804 and the response piece that matches with sensor 804, when shooing, guarantee that objective is in the position of can shooing.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a microscope objective switching mechanism, its characterized in that, includes pivot (1) that is used for installing objective, is used for driving pivot (1) pivoted power device (2), is used for driving lift drive (6) that first lifter plate (4) go up and down, still includes fixed axle (3), first lifter plate (4), rack-mounted second lifter plate (5), first lifter plate (4) and second lifter plate (5) sliding connection, fixed axle (3) set up on first lifter plate (4), and pivot (1) cover is on fixed axle (3), and pivot (1) can rotate around fixed axle (3).

2. The microscope objective switching mechanism according to claim 1, wherein the first lifter plate (4) is of a U-shaped configuration, the U-shaped structure comprises a first connecting end (401), a second connecting end (402) and a lifting end (403), the two parallel sides in the U-shaped structure are respectively the first connecting end (401) and the second connecting end (402), the lifting end (403) is connected with the two parallel sides in the U-shaped structure, a gap formed by the first connecting end (401), the second connecting end (402) and the lifting end (403) is a connecting area (404), the second lifting plate (5) is arranged on the side of the lifting end (403) facing away from the connecting region (404), the lifting driving device (6) is arranged on one side of the first lifting plate (4), two ends of the fixed shaft (3) are respectively connected with one sides of the first connecting end (401) and the second connecting end (402).

3. The microscope objective switching mechanism according to claim 1, wherein the power device (2) comprises a driving motor (201), a driving pulley (202), a synchronous belt (203), a driven pulley (204), and a motor bracket (205), the driving motor (201) is connected to the driving pulley (202), the driven pulley (204) is connected to one end of the rotating shaft (1), the driving pulley (202) is connected to the driven pulley (204) through the synchronous belt (203), the motor bracket (205) is installed on the first lifting plate (4), and the driving motor (201) is installed on the motor bracket (205).

4. A microscope objective switching mechanism according to claim 1, wherein the first lifter plate (4) and the second lifter plate (5) are connected by a cross-guide.

5. The microscope objective switching mechanism according to claim 1, further comprising a resilient positioning assembly (7), wherein the resilient positioning assembly (7) comprises a pressing block (701), a spring (702) and a steel ball (703), one end of the spring (702) is connected with the steel ball (703), the other end of the spring (702) is connected with the pressing block (701), the spring (702) and the steel ball (703) are both located inside the pressing block (701), the steel ball (703) can extend out of the pressing block (701), and the resilient positioning assembly (7) is disposed on the rotating shaft (1).

6. The microscope objective switching mechanism according to claim 1, wherein the elevation driving device (6) comprises an elevation connecting block (601), an elevation motor (602), a worm gear assembly (603), a focusing rotating shaft (604), a focusing assembly fixing seat (605), a focusing nut (606), and a focusing screw (607), the elevation connecting block (601) is disposed on the first elevation plate (4), the elevation motor (602) is connected with the worm gear assembly (603), the worm gear assembly (603) is connected with one end of the focusing rotating shaft (604), the other end of the focusing rotating shaft (604) is connected with the focusing nut (606), one end of the focusing screw (607) is connected with the focusing nut (606), the other end of the focusing screw (607) is connected with the elevation connecting block (601), the elevation motor (602) is disposed on the focusing assembly fixing seat (605), the worm and gear assembly (603) and the focusing rotating shaft (604) are both positioned in the focusing assembly fixing seat (605).

7. The microscope objective switching mechanism according to claim 1, wherein the rotating shaft (1) is a hollow cylindrical structure, a plurality of rectangular grooves (101) for mounting the objective lens are formed on the outer circumferential wall of the rotating shaft (1), and a through hole communicating with the rotating shaft (1) is formed in the middle of the rectangular grooves (101).

8. A microscope objective switching mechanism according to claim 7, wherein the number of rectangular grooves (101) is 2 and the included angle between the axes of 2 rectangular grooves (101) is 60 °.

9. A microscope objective switching mechanism according to claim 1, wherein the rotating shaft (1) and the fixed shaft (3) are connected by a bearing.

10. The switching mechanism of microscope objective lens according to claim 1, wherein the fixed shaft (3) has a through hole formed in the middle thereof, and the axis of the through hole is perpendicular to the axis of the fixed shaft (3).