Conversion device for a microscope

Abstract

The utility model discloses conversion equipment for a microscope, which comprises a connecting cylinder, the bottom end of the connecting cylinder is obliquely provided with a fixed disc, the peripheral side of the fixed disc is rotatably matched with a rotating cylinder, the bottom of the rotating cylinder is provided with a plurality of mounting holes, and objective lens assemblies are arranged in the mounting holes; a fixing column is mounted at the bottom of the inner wall of the rotating cylinder, a plurality of sliding frames corresponding to the mounting holes are slidably matched in the rotating cylinder, a pressing rod is mounted on one side of each sliding frame, one end of each pressing rod penetrates through one side of the outer wall of the rotating cylinder, and an extrusion rod is mounted on the other side of each sliding frame. According to the utility model, through the arrangement of the pressing rod, the pressing rod corresponding to the objective lens assembly needing to be used can be pushed, so that the pressing rod drives the sliding frame and the fixed seat to move, the clamping block in the fixed seat can correspond to the clamping groove, and the clamping block corresponding to the objective lens assembly needing to be used can rotate and enter the clamping groove to be clamped; and the corresponding objective lens assembly can be conveniently rotated and fixed according to needs for use.

Description

Technical Field

[0001] This utility model relates to the field of microscope technology, and more specifically to a conversion device for microscopes. Background Technology

[0002] The revolving nosepiece is a key component connecting the eyepiece and objective lens. Its main function is to install and change objective lenses of different magnifications. During microscope use, different magnification objective lenses can be switched using the revolving nosepiece according to the required level of detail in the sample being observed.

[0003] Currently, the converter switches between different objectives by rotating them. Different objectives are rotated to be below the eyepiece as needed. However, it is difficult for the objectives to be completely aligned with the eyepiece during the rotation process. There is a lack of a limiting mechanism to limit and fix the selected objectives. There is an urgent need to design a converter for microscopes to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a conversion device for microscopes to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A conversion device for a microscope includes a connecting tube, a fixed plate obliquely mounted at the bottom end of the connecting tube, a rotating tube rotatably fitted around the fixed plate, a plurality of mounting holes at the bottom of the rotating tube for housing objective lens assemblies, a fixed post mounted on the bottom inner wall of the rotating tube, a plurality of sliding frames corresponding to the mounting holes slidably fitted inside the rotating tube, a pressing rod mounted on one side of each sliding frame with one end penetrating one side of the outer wall of the rotating tube, a squeezing rod mounted on the other side of each sliding frame and slidably fitted within the fixed post with one end of each squeezing rod abutting against each other, a fixed seat mounted on the top of each sliding frame with a retaining block elastically fitted on the top of the fixed seat, and a slot corresponding to the connecting tube at the bottom of the fixed plate.

[0007] Furthermore, a mounting ring is sleeved around the periphery of the connecting cylinder, and mounting grooves are provided on both outer sides of the mounting ring.

[0008] Furthermore, a sliding groove is provided on the inner wall of the rotating cylinder, and multiple balls are rotatably fitted on the periphery of the fixed disk, with the sliding groove and the multiple balls slidingly fitted together.

[0009] Furthermore, the plurality of mounting holes are circumferentially distributed, and the inner walls of the plurality of mounting holes are provided with internal threads. One end of the objective lens assembly is provided with an external thread, and the internal thread and the external thread are threadedly engaged.

[0010] Furthermore, a circular groove is provided at the bottom of the fixing plate, and the slot is located in the circular groove.

[0011] Furthermore, the fixed column is provided with multiple limiting grooves corresponding to the multiple extrusion rods. The multiple limiting grooves are equidistantly distributed in a circle. The multiple extrusion rods are slidably engaged in the multiple limiting grooves. One end of each of the multiple extrusion rods is provided with a round head, and the multiple round heads abut against each other. A pressing block is installed at one end of the pressing rod that penetrates the outer wall of the rotating cylinder.

[0012] In the above technical solution, the conversion device for microscopes provided by this utility model has the following beneficial effects:

[0013] The push rods can be pushed to move the sliding frame and the mounting base, allowing the locking blocks in the mounting base to align with the slots. This enables the locking blocks corresponding to the desired objective lens assembly to rotate into the slots and engage, facilitating the rotation and fixing of the corresponding objective lens assembly as needed. The squeezing rods, when the sliding frame moves, will also move, pushing other squeezing rods to move. This prevents the mounting bases on other sliding frames from aligning with the slots, ensuring that the mounting bases on the moving sliding frame align with the slots, thus facilitating the fixing of the selected objective lens assembly and the connecting tube. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a schematic diagram of the conversion device structure provided in an embodiment of the conversion device for a microscope according to the present invention.

[0016] Figure 2 This is a schematic diagram of the fixed disk structure provided in an embodiment of a microscope conversion device according to the present invention.

[0017] Figure 3 This is a schematic diagram of a sliding frame structure provided in an embodiment of a microscope conversion device according to the present invention.

[0018] Figure 4 This is a schematic diagram of the extrusion rod structure provided in an embodiment of a microscope conversion device according to the present invention.

[0019] 1. Connecting cylinder; 2. Fixing plate; 3. Rotating cylinder; 4. Mounting hole; 5. Objective lens assembly; 6. Fixing post; 7. Sliding frame; 8. Pressing rod; 9. Extrusion rod; 10. Fixing base; 11. Locking block; 12. Locking groove; 13. Mounting ring; 14. Mounting groove; 15. Sliding groove; 16. Ball bearing; 17. Circular groove; 18. Limiting groove; 19. Round head; 20. Pressing block. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0021] like Figure 1-4 As shown, this utility model provides a conversion device for a microscope.

[0022] The system includes a connecting cylinder 1, a fixed plate 2 obliquely mounted at the bottom of the connecting cylinder 1, a rotating cylinder 3 rotatably fitted around the fixed plate 2, multiple mounting holes 4 at the bottom of the rotating cylinder 3, and an objective lens assembly 5 installed in each mounting hole 4; a fixed post 6 is installed at the bottom of the inner wall of the rotating cylinder 3, multiple sliding frames 7 corresponding to the mounting holes 4 are slidably fitted inside the rotating cylinder 3, a pressing rod 8 is installed on one side of the sliding frame 7, one end of the pressing rod 8 penetrates one side of the outer wall of the rotating cylinder 3, and a squeezing rod 9 is installed on the other side of the sliding frame 7, the squeezing rod 9 is slidably fitted in the fixed post 6, and one end of the multiple squeezing rods 9 abuts against each other; a fixed seat 10 is installed on the top of the sliding frame 7, and a locking block 11 is elastically fitted on the top of the fixed seat 10; and a slot 12 corresponding to the connecting cylinder 1 is opened at the bottom of the fixed plate 2.

[0023] Reference Figure 1 In this embodiment, the connecting cylinder 1 is fitted with a mounting ring 13 around its periphery, and mounting grooves 14 are provided on both outer sides of the mounting ring 13. The mounting ring 13 is positioned so that it corresponds to the eyepiece of the microscope. The mounting ring 13 is pushed into the bottom of the microscope, so that the mounting grooves 14 engage and limit its position. Then, external bolts are used for installation and fixation.

[0024] Reference Figure 2 In this embodiment, a groove 15 is provided on the inner circumference of the rotating cylinder 3, and a plurality of balls 16 are rotatably fitted on the circumference of the fixed disk 2. The groove 15 and the plurality of balls 16 are slidably fitted together. With the provided balls 16, when the rotating cylinder 3 is rotated, the plurality of balls 16 will rotate in the groove 15, making the rotation of the rotating cylinder 3 smoother.

[0025] Reference Figure 3In this embodiment, multiple mounting holes 4 are circumferentially distributed, and each mounting hole 4 has an internal thread on its inner wall. One end of the objective lens assembly 5 has an external thread, and the internal and external threads are threadedly engaged. The internal and external threads allow the objective lens assembly 5 to correspond to the mounting holes 4, enabling it to rotate into the mounting holes 4 for threaded installation. This also allows for the disassembly and replacement of the objective lens assembly 5.

[0026] Reference Figure 3 In this embodiment, the bottom of the fixed plate 2 is provided with a circular groove 17, and the slot 12 is located in the circular groove 17. Through the circular groove 17, pushing the pressing rod 8 can drive the sliding frame 7 and the fixed seat 10, so that the fixed seat 10 corresponds to the circular groove 17. The locking block 11 on the top of the fixed seat 10 will enter the circular groove 17. When the rotating cylinder 3 is rotated, the locking block 11 will move along the circular groove 17 until the locking block 11 enters the slot 12 and engages.

[0027] Reference Figure 4 In this embodiment, the fixed column 6 has multiple limiting grooves 18 corresponding to multiple extrusion rods 9. The multiple limiting grooves 18 are equidistantly distributed circumferentially. The multiple extrusion rods 9 are slidably engaged in the multiple limiting grooves 18. One end of each of the multiple extrusion rods 9 is provided with a round head 19, and the multiple round heads 19 abut against each other. One end of the pressing rod 8 that penetrates the outer wall of the rotating cylinder 3 is equipped with a pressing block 20. Through the provided round head 19, the pressing block 20 can be pushed to drive the pressing rod 8 to move, so that the pressing rod 8 pushes the sliding frame 7 and the extrusion rods 9 to move, so that the round head 19 at one end of the extrusion rod 9 presses the round head 19 at one end of other extrusion rods 9, so that the extrusion rod 9 enters the fixed column 6, and the other extrusion rods 9 move out of the fixed column 6.

[0028] Working principle: In use, first connect the connecting tube 1 to the microscope eyepiece and install the connecting tube 1 below the eyepiece. Then the eyepiece can be used through the connecting tube 1 to the objective lens assembly 5. During use, the rotating tube 3 can be rotated to adjust the corresponding objective lens assembly 5. After selecting the objective lens assembly 5 to be used, press the pressing rod 8 corresponding to the objective lens assembly 5. The movement of the pressing rod 8 will push the sliding frame 7 to move, causing the sliding frame 7 to drive the squeezing rod 9 to move. The squeezing rod 9 will squeeze the other squeezing rods 9. At this time, the locking block 11 in the fixing seat 10 on the sliding frame 7 can rotate and engage with the corresponding slot 12. The locking blocks 11 in the fixing seats 10 on the other sliding frames 7 cannot engage with the corresponding slots 12. Rotate the rotating tube 3 to make the locking block 11 enter the slot 12 for limiting and fixing. At this time, the rotating tube 3 can no longer rotate, and the selected objective lens assembly 5 is also located directly below the connecting tube 1.

[0029] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A conversion device for a microscope comprising a connecting tube (1), characterized in that, A fixed plate (2) is installed at the bottom of the connecting cylinder (1) at an incline. A rotating cylinder (3) is rotatably fitted around the fixed plate (2). A plurality of mounting holes (4) are opened at the bottom of the rotating cylinder (3). An objective lens assembly (5) is installed in the mounting holes (4). A fixed post (6) is installed at the bottom of the inner wall of the rotating cylinder (3). A plurality of sliding frames (7) corresponding to the plurality of mounting holes (4) are slidably fitted inside the rotating cylinder (3). A pressing rod (8) is installed on one side of the sliding frame (7). One end of the pressing rod (8) passes through one side of the outer wall of the rotating cylinder (3). A squeezing rod (9) is installed on the other side of the sliding frame (7). The squeezing rod (9) is slidably fitted inside the fixed post (6). One end of the plurality of squeezing rods (9) abuts against each other. A fixed seat (10) is installed on the top of the sliding frame (7). A locking block (11) is elastically fitted on the top of the fixed seat (10). A slot (12) corresponding to the connecting cylinder (1) is opened at the bottom of the fixed plate (2).

2. A conversion device for a microscope according to claim 1, characterized in that The connecting cylinder (1) is fitted with a mounting ring (13) on its periphery, and mounting grooves (14) are provided on both outer sides of the mounting ring (13).

3. A conversion device for a microscope according to claim 1, characterized in that The inner wall of the rotating cylinder (3) is provided with a sliding groove (15), and the circumference of the fixed disk (2) is fitted with a plurality of balls (16), and the sliding groove (15) and the plurality of balls (16) slide together.

4. A conversion device for a microscope according to claim 1, characterized in that The mounting holes (4) are distributed equidistantly in a circle, and the inner walls of the mounting holes (4) are provided with internal threads. One end of the objective lens assembly (5) is provided with an external thread, and the internal thread and the external thread are threadedly engaged.

5. A conversion device for a microscope according to claim 1, characterized in that The bottom of the fixed plate (2) is provided with a circular groove (17), and the slot (12) is located in the circular groove (17).

6. A conversion device for a microscope according to claim 1, characterized in that The fixed column (6) has multiple limiting grooves (18) corresponding to the multiple extrusion rods (9). The multiple limiting grooves (18) are equidistantly distributed in a circle. The multiple extrusion rods (9) are slidably fitted in the multiple limiting grooves (18). One end of each of the multiple extrusion rods (9) is provided with a round head (19). The multiple round heads (19) abut against each other. The pressing rod (8) has a pressing block (20) installed at one end that penetrates the outer wall of the rotating cylinder (3).

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