CN112505909B - A Confocal Microscope with Easy Scanning Head Replacement - Google Patents

Abstract

The invention relates to the technical field of microscopic equipment, in particular to a confocal microscope convenient for replacing a scanning head, which comprises a base and the scanning head, wherein the upper end of the base is fixedly connected with an observation table, an electric platform and a supporting rod, the upper end of the supporting rod is fixedly connected with Z-axis focusing equipment, the side wall of the base is fixedly connected with a mounting block, the inner wall of the mounting block is provided with a sliding cavity, one end of the scanning head is provided with a connector, a connecting component fixedly connected with the connector is arranged in the sliding cavity, and the connecting component can be detachably clamped with the mounting block through an unlocking component. The problems that the scanning head and the connecting seat of the existing confocal microscope are inconvenient to install and detach, the scanning head is troublesome to replace or maintain, and the working efficiency is affected when the scanning head is used for a long time are solved.

Description

A confocal microscope with easy replacement of scanning head

technical field

The invention relates to the technical field of microscopic equipment, in particular to a confocal microscope which is convenient for replacing a scanning head.

Background technique

Confocal laser scanning microscope is a new instrument with high light sensitivity and high resolution developed in the past ten years. It uses laser light as the light source and consists of confocal imaging scanning system, electron optical system and microcomputer image analysis system.

After the beam is focused, it lands on a tiny point at different depths of the sample (thick tissue or cell), and moves and scans, and through the electrical signal color imaging, the image formed by the reflected light at any point in the sample can be accurately received down and generate a signal, which is transmitted to a color display, and then connected to a microcomputer image analysis system for analysis and processing.

In the prior art, it is inconvenient to install and disassemble between the scanning head and the connecting seat of the confocal microscope. It is troublesome to replace or maintain the scanning head, and the operator needs to spend a certain amount of time and energy to disassemble the scanning head from the connecting seat. Lowering and accurately fixing the scanning head on the connecting seat will affect the work efficiency during long-term use and may cause damage to the equipment.

Contents of the invention

In view of this, it is necessary to provide a confocal microscope that is easy to replace the scanning head, in order to solve the inconvenient installation and disassembly between the scanning head and the connecting seat of the existing confocal microscope, and it is more troublesome when replacing or maintaining the scanning head , A problem that affects work efficiency during long-term use.

The invention provides a confocal microscope for easy replacement of the scanning head, including a base and a scanning head, the upper end of the base is fixedly connected with an observation platform, an electric platform and a support rod, and the upper end of the support rod is fixedly connected with a Z-axis focusing device , the side wall of the base is fixedly connected with a mounting block, the inner wall of the mounting block is provided with a sliding cavity, one end of the scanning head is provided with a connecting head, the connecting head is provided with a connecting hole, and also includes

A connection assembly, the connection assembly includes a slider, a return spring, a limit block and a connecting piece arranged in the sliding cavity, the slider 31 is ring-shaped, and the sliding cavity 151 includes a larger diameter Inner wall and an inner wall with a smaller diameter, the inner wall of the slider 31 is in contact with the inner wall of the side with a smaller diameter in the sliding cavity 151, and the outer wall of the slider 31 is in contact with the inner wall of the sliding cavity 151 with a smaller diameter. There is a gap between the inner walls of the large side, the outer wall of the slider is provided with at least one installation groove, the side wall at one end of the connecting piece is provided with a protrusion matching the connection hole, and one end of the return spring is connected to the installation groove. The inner bottom wall of the connecting piece is fixedly connected, the other end is fixedly connected with the limit block, the limit block is in contact with the inner wall of the sliding cavity, the other end of the connecting piece is fixedly connected with one side of the slider, and

An unlocking assembly, the unlocking assembly includes a push block, a push rod arranged on one side of the push block, the inner wall of the sliding cavity is provided with a ring cut groove, the push block is arranged in the ring cut groove, and one end of the push rod extend beyond the mounting block;

The connecting piece is clamped in the connecting hole and fixed to the connecting head through the protrusion, and when the limiting block is slid and locked in the ring cut groove, the scanning head is detachably connected to the mounting block.

As a preference, the outer wall of the slider is also provided with a limiting groove, and the inner wall with a larger diameter in the sliding cavity is provided with a limiting rod 153 that matches the limiting groove 312, and the limiting rod 153 is parallel to the The central axis of the slider 31 is engaged with the limiting groove 312 . Specifically, the contact surfaces of the push block and the limit block have the same taper.

Preferably, the limiting block is provided with a ball, and the ball is in point contact with the inner wall of the sliding cavity.

Preferably, a compression spring is provided between the inner bottom wall of the sliding cavity and the slider.

Preferably, a pressure block is provided at one end of the push rod, and a limit spring is sheathed on the push rod between the pressure block and the installation block.

Preferably, the inner wall of the sliding cavity is provided with a limiting ring block, and the inner diameter of the limiting ring block is the same as that of the sliding block.

Specifically, the connecting piece is made of elastic metal or rubber material.

The beneficial effects of the present invention are:

(1) The present invention provides a confocal microscope that is easy to replace the scanning head. The protrusion on the connecting piece is clamped in the connecting hole, the connecting head is fixedly connected to the connecting assembly, and then slides through the limit block on the connecting assembly. When the position of the ring groove is reached, the return spring will lift the limit block and set it in the ring groove, and fix the connecting component in the installation block. When the scanning head needs to be replaced, only need to press the push rod, and the push block and the limit block will interact with each other. Squeeze to make the limit block free from the shackles of the ring groove, and then the connecting component can be unlocked. The structure is simple, the installation or disassembly is convenient, and the working efficiency can be effectively improved.

(2) The present invention provides a kind of confocal microscope that is convenient for replacing the scanning head. In order to prevent the slider from rotating in the sliding cavity, a limit groove is set on the outer wall of the slider, and the inner wall of the slide cavity is set to match the limit groove The matching limit rod avoids the situation that the limit block cannot be accurately snapped into the ring cut groove to fix the connecting head and the installation block.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the structural representation of a kind of confocal microscope that is convenient to replace scanning head of the present invention;

Fig. 2 is the enlarged schematic view of A in Fig. 1;

Fig. 3 is a schematic diagram of the mechanism of the slider of the present invention.

Detailed ways

Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and together with the embodiments of the present invention are used to explain the principle of the present invention and are not intended to limit the scope of the present invention.

A kind of confocal microscope that is convenient to replace scanning head, comprises base 1 and scanning head 2, and the upper end of described base 1 is fixedly connected with observation platform 11, electric platform 12 and support bar 13, and the upper end of described support bar 13 is fixedly connected with Z-axis focusing device 14, a mounting block 15 is fixedly connected to the side wall of the base 1, a sliding cavity 151 is provided inside the mounting block 15, and a connecting head 21 is provided at one end of the scanning head 2, and the connection The head 21 is provided with a connecting hole 211, which also includes

A connection assembly, the connection assembly includes a slider 31 located in the sliding cavity 151, a return spring 32, a limit block 33 and a connecting piece 34, the slider 31 is annular, and the sliding cavity 151 includes An inner wall with a larger diameter and an inner wall with a smaller diameter, the inner wall of the slider 31 is in contact with the inner wall of the side with a smaller diameter in the sliding cavity 151, and the outer wall of the slider 31 is in contact with the sliding cavity. There is a gap between the inner walls of the larger diameter side of the cavity 151, the outer wall of the slider 31 is provided with at least one installation groove 311, and the side wall at one end of the connecting piece 34 is provided with a protrusion that matches the connecting hole 211 341, one end of the return spring 32 is fixedly connected to the inner bottom wall of the installation groove 311, and the other end is fixedly connected to the limit block 33, the limit block 33 is in contact with the inner wall of the sliding cavity 151, and the connecting piece 34 The other end of is fixedly connected with one side of slider 31, and

The unlocking assembly, the unlocking assembly includes a push block 41, a push rod 42 arranged on one side of the push block 41, the inner wall of the sliding cavity 151 is provided with a ring cut groove 152, and the push block 41 is arranged in the ring cut groove 152 , one end of the push rod 42 extends outside the mounting block 15;

The connecting piece 34 is clamped in the connecting hole 211 via the protrusion 341 and fixed to the connecting head 21. When the limiting block 33 is slid and fixed in the ring cut groove 152, the scanning head 2 and the installation Block 15 detachable connection.

In a specific embodiment, the outer wall of the slider 31 is also provided with a limiting groove 312, and the inner wall of the sliding cavity 151 with a larger diameter is provided with a limiting rod 153 matching the limiting groove 312, The limiting rod 153 is parallel to the central axis of the sliding block 31 and engages with the limiting groove 312 . By arranging the stop rod 153 to cooperate with the stop slot 312, the slide block 31 is guided to slide linearly along the length direction of the stop rod 153, preventing the slide block 31 from rotating in the sliding cavity 151, causing the stop block 33 to fail Accurately clamped into the ring cut groove 152, the connector 21 and the mounting block 15 cannot be fixed.

In a specific embodiment, the contact surfaces of the pushing block 41 and the limiting block 33 have the same taper 5 . When unlocking, you only need to press the push rod 42 to make the push block 41 and the limit block 33 squeeze each other, so that the limit block 33 is free from the constraints of the ring groove 152. Setting the taper 5 can not only reduce the force when pressing, but also can Effectively push the limiting block 33 from the ring cut groove 152 into the sliding cavity 151 to realize unlocking.

In a specific embodiment, the limiting block 33 is provided with a ball 6 , and the ball 6 is in point contact with the inner wall of the sliding cavity 151 . By arranging the balls 6, the friction force between the limiting block 33 and the inner wall of the sliding cavity 151 can be reduced when the sliding block 31 slides in the sliding cavity 151 .

In a specific embodiment, a compression spring 7 is provided between the inner bottom wall of the sliding cavity 151 and the slider 31 . Compression spring 7 is set, and when limit block 33 is stuck in ring cut groove 152, compression spring 7 squeezes slide block 31, makes stop block 33 and the inner wall of ring cut groove 152 fit closely, can prevent scanning head 2 In case of loose connection with base 1.

In a specific embodiment, one end of the push rod 42 is provided with a pressure block 43 , and a limit spring 44 is sleeved on the push rod 42 between the pressure block 43 and the outer surface of the mounting block 15 . By setting the limit spring 44 , under the action of no external force, the push block 41 can be limited to be kept in the circumscribed groove 152 , so that the bottom of the push block 41 will not fall into the sliding cavity 151 and block the sliding path of the slide block 31 .

In a specific embodiment, a limit ring block 154 is provided on the inner wall with a larger diameter in the sliding cavity 151, and the limit ring block 154 is located at an end away from the compression spring 7, and the limit ring block 154 The inner diameter is the same as the outer wall diameter of the slider 31 . By setting the limit ring block 154 , the connecting assembly can be prevented from slipping out of the sliding cavity 151 .

In a specific embodiment, the connecting piece 34 is made of elastic metal or rubber material.

Working principle: The connecting head 21 and the connecting component are fixed by the protrusion 341 on the connecting piece 34 being clamped in the connecting hole 211, and the scanning head 2 is pushed horizontally to make the connecting component slide in the sliding cavity 151, acting as a limit block 33 slides to the position of the ring cut groove 152, the return spring 32 pushes up the limit block 33 and locks it in the ring cut groove 152, preventing the connecting component from continuing to slide in the sliding cavity 151, and fixing the scanning head 2 and the base 1 When the scanning head 2 needs to be replaced, press the push block 41 through the push rod 42, so that the push block 41 squeezes the limit block 33 and compresses the return spring 32, so that the limit block 33 is separated from the ring cut groove 152.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any changes that can be easily conceived by those skilled in the art and technical field within the technical scope disclosed in the present invention Or replacement, all should be covered within the protection scope of the present invention.

Claims (6)

1. The utility model provides a confocal microscope convenient to change scanning head, includes base and scanning head, the upper end fixedly connected with observation platform, electric platform and the bracing piece of base, the upper end fixedly connected with Z axle focusing facilities of bracing piece, fixedly connected with installation piece on the lateral wall of base, its characterized in that, the inner wall of installation piece is equipped with a slip cavity, scanning head one end is equipped with the connector, the connecting hole has been seted up on the connector, still includes

The connecting assembly comprises a sliding block, a restoring spring, a limiting block and a connecting sheet, wherein the sliding block is arranged in a sliding cavity, the sliding block is annular, the sliding cavity comprises an inner wall with a larger diameter and an inner wall with a smaller diameter, the inner wall of the sliding block is in contact with the inner wall of one side with a smaller diameter in the sliding cavity, a gap is reserved between the outer wall of the sliding block and the inner wall of one side with a larger diameter in the sliding cavity, at least one mounting groove is formed in the outer wall of the sliding block, a protrusion matched with the connecting hole is formed in the side wall of one end of the connecting sheet, one end of the restoring spring is fixedly connected with the inner bottom wall of the mounting groove, the other end of the restoring spring is fixedly connected with the limiting block, the limiting block is in contact with the inner wall of the sliding cavity, and the other end of the connecting sheet is fixedly connected with one side of the sliding block

The unlocking assembly comprises a push block, a push rod arranged on one side of the push block, an annular groove is formed in the inner wall of the sliding cavity, the push block is arranged in the annular groove, and one end of the push rod extends out of the mounting block;

the connecting piece is clamped in the connecting hole through the bulge and is fixed with the connector, and when the limiting block is clamped in the annular groove in a sliding manner, the scanning head is detachably connected with the mounting block;

the compression spring is arranged between the inner bottom wall of the sliding cavity and the sliding block, the outer wall of the sliding block is also provided with a limiting groove, the inner wall with the larger diameter in the sliding cavity is provided with a limiting rod matched with the limiting groove, and the limiting rod is parallel to the central axis of the sliding block and is in clamping fit with the limiting groove.

2. The confocal microscope of claim 1, wherein the contact surfaces of the push block and the stopper have the same taper.

3. The confocal microscope of claim 1, wherein the stopper is provided with balls, and the balls are in point contact with the inner wall of the sliding cavity.

4. The confocal microscope of claim 1, wherein a pressing block is arranged at one end of the pushing rod, and a limiting spring is sleeved on the pushing rod between the pressing block and the mounting block.

5. The confocal microscope of claim 1, wherein the inner wall of the sliding cavity is provided with a limiting ring block, and the inner diameter of the limiting ring block is the same as the diameter of the sliding block.

6. A confocal microscope according to claim 1 wherein said connecting tabs are made of a resilient metal or rubber material.

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