Lens cleaning device for Raman detection

Abstract

The utility model provides a lens cleaning device for Raman detection. The lens cleaning device comprises a cleaning assembly and a connecting assembly, the cleaning assembly comprises a support, an air pump, a brush and a wiper are installed at the upper end of the support, a rotating disc is connected to the lower end of the support, a base is arranged at the lower end of the rotating disc, and a driving module is arranged between the rotating disc and the base and used for driving the rotating disc and the support to rotate spirally. Cleaning an objective lens of the external microscope; the connecting assembly is located on the side edge of the cleaning assembly. During use, an operator selects the air pump, the brush or the wiper with the corresponding pollution degree according to the observed pollution degree of the lens, starts the driving module, moves the driving module to the position below the lens and spirally moves the driving module, automatic cleaning of the lens is achieved, and the situation that the lens is polluted, so that sample imaging is not clear, and the accuracy of Raman detection data is affected is avoided.

Description

Technical Field

[0001] This utility model relates to the field of Raman detection technology, and in particular to a lens cleaning device for Raman detection. Background Technology

[0002] Laser confocal Raman spectroscopy is an analytical instrument used in chemical engineering, materials science, mechanical engineering, and biology. It utilizes the Raman effect when light is irradiated onto a substance to obtain information about molecular vibrations or rotations. Currently, Raman spectroscopy is widely used in the identification of substances and the study of molecular structures, serving as a basis for qualitative analysis of molecular structures.

[0003] In existing technologies, operators perform Raman spectroscopy by selecting a suitable laser source. However, improper operation, such as using a laser source with excessively high heat, can cause sample dissolution. If the sample is too close to the lens, the dissolved sample can adhere to the microscope lens, causing contamination. Currently, cleaning microscope lenses mostly requires manual handling, which can easily scratch the lens if not done properly, affecting subsequent Raman spectroscopy. Routine use also necessitates cleaning and maintenance of the microscope lens to prevent dust from affecting sample imaging.

[0004] To address this issue, we propose a lens cleaning device for Raman detection, which solves the problems of microscope lenses being difficult to clean, easily damaged, and affecting Raman detection data in existing technologies. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a lens cleaning device for Raman detection, which solves the problem that microscope lenses are difficult to clean, easily damaged, and affect Raman detection data in the prior art.

[0006] To achieve the above and other related objectives, this utility model provides a lens cleaning device for Raman detection, comprising: a cleaning component and a connecting component;

[0007] The cleaning assembly includes a support frame, an air pump, a brush, and a wiper mounted on the upper end of the support frame, a turntable connected to the lower end of the support frame, a base at the lower end of the turntable, and a drive module between the turntable and the base. The drive module is used to drive the turntable and the support frame to rotate spirally to perform cleaning operations on the objective lens of the external microscope.

[0008] The connecting component is located on the side of the cleaning component and is used to rotate and lift the cleaning component so that it contacts the objective lens of the external microscope.

[0009] Preferably, the upper end of the air pump is connected to an air jet pipe; the wiper includes a mounting base, and a circular cotton ball is detachably connected to the upper end of the mounting base.

[0010] Preferably, the air pump, brush, and wiper are arranged in a ring around the center of the support, and the distance between each pair of the air pump, brush, and wiper is greater than the distance of the maximum outer diameter of the objective lens in the external microscope.

[0011] Preferably, the drive module includes a first motor installed in the middle of the lower end of the base, the output end of the first motor is connected to a rotating frame located inside the base, the inner side wall of the rotating frame is connected to a second motor, the output end of the second motor is connected to a screw, the inside of the rotating frame is connected to a slider, the middle of the slider is penetrated by the screw, the upper end of the slider is connected to a moving block, and the moving block passes through two guide rails and is connected to the turntable.

[0012] Preferably, the upper annular side of the base is provided with a number of ball bearings to reduce the friction between the base and the turntable.

[0013] Preferably, the upper outer part of the bracket is connected to three distance sensors, which are respectively matched with the air pump, the brush and the wiper.

[0014] Preferably, a third motor is provided in the middle of the turntable, and the output end of the third motor is connected to the bottom of the bracket.

[0015] Preferably, the connecting assembly includes a slide rail connected to an external microscope and an extension rod connected to a base. A lifting block is connected to the lower end of the slide rail, and an electric push rod is connected between the slide rail groove wall and the lifting block. The lower end of the lifting block is connected to the other end of the extension rod.

[0016] Preferably, the lower ends of the lifting block extend outward to form baffles on both sides, and suction cups are installed on the inner sidewalls of both baffles.

[0017] As described above, the lens cleaning device for Raman detection disclosed in this utility model has the following beneficial effects: This utility model, by setting up a bracket, air pump, brush, wiper, turntable, base and drive module, allows the operator to select the air pump, brush or wiper corresponding to the degree of contamination observed in the lens, start the drive module, move it under the lens and perform spiral movement, thereby realizing automated cleaning of the lens and avoiding lens contamination leading to unclear sample imaging and affecting the accuracy of Raman detection data.

[0018] Meanwhile, a slide rail, extension rod, lifting block, electric push rod, baffle, suction cup, and distance sensor are also provided. The electric push rod and distance sensor work together to make the brush or wiper contact the lens but not squeeze each other. The air pump can be located below the lens but not in contact with the lens, which can lift the cleaning component. The two baffles and suction cup make it easy to position the cleaning component and remove it from the observation range of the microscope lens when not in use to avoid interfering with the experiment.

[0019] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value. Attached Figure Description

[0020] Figure 1 The image shown is a perspective view of the lens cleaning device for Raman spectroscopy according to this invention.

[0021] Figure 2 The diagram shows the connection of the cleaning components and connecting components of the lens cleaning device for Raman detection according to this invention.

[0022] Figure 3 This invention presents a lens cleaning device for Raman spectroscopy. Figure 1 Enlarged view of section A in the middle.

[0023] Figure 4 The diagram shows the internal structure of the base of the lens cleaning device for Raman detection according to this invention.

[0024] Figure 5 This invention presents a lens cleaning device for Raman spectroscopy. Figure 4 Enlarged view of section B.

[0025] Figure 6 The image shown is a cross-sectional view of the base of the lens cleaning device for Raman spectroscopy according to this invention.

[0026] Component designation explanation

[0027] 2. Cleaning components; 20. Stand; 21. Air pump; 22. Brush; 23. Wiper; 24. Turntable; 25. Base; 26. Drive module; 27. Distance sensor; 28. Third motor; 29. ​​Guide rail;

[0028] 230. Mounting base; 231. Cotton ball; 250. Ball bearing; 260. First motor; 261. Rotating frame; 262. Second motor; 263. Screw; 264. Slider; 2640. Moving block;

[0029] 3. Connecting components; 30. Slide rail; 31. Extension rod; 32. Lifting block; 33. Electric push rod; 34. Baffle; 35. Suction cup. Detailed Implementation

[0030] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0031] Please see Figures 1 to 6 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0032] like Figure 1-6 As shown, this utility model provides a lens cleaning device for Raman detection, including: a cleaning component 2 and a connecting component 3;

[0033] The cleaning component 2 includes a support 20, on the upper end of which is mounted an air pump 21, a brush 22, and a wiper 23. The air pump 21 is used to blow air onto the microscope lens to remove dust. If the dust cannot be blown off, the brush 22 is used to wipe the lens to remove stubborn dust. The brush 22 has a soft brush head, such as a camera lens brush or a makeup brush. For light contamination caused by fingerprints or stains, the wiper 23 is soaked in acetone or isopropyl alcohol to wipe the lens and remove the contamination. For moderate contamination such as saliva or oil, the wiper 23 is soaked in distilled white vinegar to wipe the lens and remove the contamination. The lower end of the support 20 is connected to a turntable 24, and the lower end of the turntable 24 is provided with a base 25. A drive module 26 is provided between the turntable 24 and the base 25. The drive module 26 is used to drive the turntable 24 and the support 20 to rotate spirally and perform cleaning operation on the objective lens of the external microscope. The connecting component 3 is located on the side of the cleaning component 2 and is used to rotate and lift the cleaning component 2 so that the cleaning component 2 contacts the objective lens of the external microscope.

[0034] In one embodiment, please refer to Figure 1-3The air pump 21 is connected to an air jet pipe at its upper end; the nozzle of the air jet pipe faces upward, and the air pump 21 draws in external air and sprays it out through the air jet pipe to blow away the dust on the lens. The wiper 23 includes a mounting base 230, and a circular cotton ball 231 is detachably connected to the upper end of the mounting base 230. The cotton ball 231 is made of the same material as cotton balls to avoid scratching the lens.

[0035] In one embodiment, please refer to Figure 1-3 The air pump 21, brush 22, and wiper 23 are arranged in a ring around the center of the support 20. The distance between each pair of the air pump 21, brush 22, and wiper 23 is greater than the distance of the maximum outer diameter of the objective lens in the external microscope. This avoids other cleaning devices from entering the lens area and causing interference during cleaning operations at different stages.

[0036] In one embodiment, please refer to Figure 4-5 The drive module 26 includes a first motor 260 installed in the middle of the lower end of the base 25. The output end of the first motor 260 is connected to a rotating frame 261 located inside the base 25. A second motor 262 is connected to the inner side wall of the rotating frame 261. The output end of the second motor 262 is connected to a screw 263. A slider 264 is connected inside the rotating frame 261. The middle of the slider 264 is penetrated by the screw 263. A moving block 2640 is connected to the upper end of the slider 264. The moving block 2640 passes through two guide rails 29 and is connected to the turntable 24. The two guide rails 29 are used to prevent the moving block 2640 from deflecting and affecting the stability of the three cleaning devices on the upper end of the bracket 20 during cleaning. In use, by activating the first motor 260, the rotating frame 261 rotates. Simultaneously, the second motor 262 is activated, driving the screw 263 to rotate. The screw 263 drives the slider 264 to translate along the rotating frame 261, thereby causing the slider 264 to drive the moving block 2640 in a helical motion. The moving block 2640 drives the two guide rails 29 to slide on the inner wall of the base 25. At the same time, the turntable 24 and the bracket 20 drive the cleaning device to perform a helical motion on the microscope lens. The drive module 26 can be used to drive three different cleaning devices to clean the microscope lens.

[0037] In one embodiment, please refer to Figure 1 and Figure 4 The upper annular side of the base 25 is provided with several ball bearings 250 to reduce the friction between the base 25 and the turntable 24, so that the turntable 24 can slide horizontally on the upper part of the base 25.

[0038] In one embodiment, please refer to Figure 3Three distance sensors 27 are connected to the upper outer part of the bracket 20. The three distance sensors 27 are respectively matched with the air pump 21, the brush 22 and the wiper 23. The distance sensors 27 measure the distance between the cleaning device below the microscope lens and the microscope lens. The height of the distance sensors 27 is lower than the height of the three cleaning devices to avoid the cleaning devices from sticking to the microscope lens and scratching the lens.

[0039] In one embodiment, please refer to Figure 4-5 A third motor 28 is located in the middle of the turntable 24, and the output end of the third motor 28 is connected to the bottom of the bracket 20. The third motor 28 drives the bracket 20 to rotate, adjusting the position of the three cleaning devices, so as to select the appropriate cleaning device according to the actual cleaning difficulty.

[0040] In one embodiment, please refer to Figure 1-2 The connecting assembly 3 includes a slide rail 30 connected to an external microscope and an extension rod 31 connected to a base 25. A lifting block 32 is connected to the lower end of the slide rail 30, and an electric push rod 33 connects the slide rail 30's groove wall and the lifting block 32. The lower end of the lifting block 32 is connected to the other end of the extension rod 31. In use, the electric push rod 33 drives the lifting block 32 to rise and fall, and the lifting block 32, via the extension rod 31, drives the cleaning assembly 2 to rise and fall. The extension rod 31 and the lifting block 32 are connected by a rotating connection. When cleaning is not required, the extension rod 31 can be rotated to rotate the cleaning assembly 2, moving it out of the observation range of the microscope objective, facilitating Raman experiments.

[0041] In one embodiment, please refer to Figure 1-2 The lower ends of the lifting block 32 extend outward to form baffles 34, and suction cups 35 are installed on the inner walls of both baffles 34. The two baffles 34 restrict the rotation range of the extension rod 31, and the suction cups 35 are used to adsorb and fix the adjacent extension rod 31, thereby achieving the positioning of the cleaning component 2 and avoiding inaccurate cleaning position during cleaning.

[0042] The specific usage process of this utility model is as follows: Based on the actual contamination of the microscope lens, the third motor 28 is started. The third motor 28 drives the turntable 24 and the support 20 to rotate, moving the appropriate cleaning device among the air pump 21, brush 22 and wiper 23 to below the objective lens. The electric push rod 33 is started, and the electric push rod 33 drives the cleaning component 2 to rise through the lifting block 32 and the extension rod 31. With the help of the distance sensor 27, the cleaning device is made to fit against the lens surface (the air pump 21 only needs to be close to the lens). The first motor 260 is started, and the first motor 260 drives the rotating frame 261 to rotate. At the same time, the second motor 262 is started, and the second motor 262 drives the screw 263 to rotate. The screw 263 drives the slider 264 to move along the rotating frame 261, thereby causing the slider 264 to drive the moving block 2640 to make a spiral motion. The moving block 2640 drives the two guide rails 29 to slide on the inner wall of the base 25. At the same time, the turntable 24 and the support 20 drive the cleaning device to make a spiral motion on the microscope lens, thereby completing the cleaning operation.

[0043] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A lens cleaning device for Raman spectroscopy, characterized in that, include: Cleaning component (2) and connecting component (3); The cleaning assembly (2) includes a bracket (20), an air pump (21), a brush (22) and a wiper (23) are installed on the upper end of the bracket (20), a turntable (24) is connected to the lower end of the bracket (20), a base (25) is provided at the lower end of the turntable (24), and a drive module (26) is provided between the turntable (24) and the base (25). The drive module (26) is used to drive the turntable (24) and the bracket (20) to rotate spirally to clean the objective lens of the external microscope. The connecting component (3) is located on the side of the cleaning component (2) and is used to rotate and lift the cleaning component (2) so that the cleaning component (2) contacts the objective lens of the external microscope.

2. The lens cleaning device for Raman detection according to claim 1, characterized in that: The upper end of the air pump (21) is connected to an air jet pipe; the wiper (23) includes a mounting base (230), the upper end of which is detachably connected to a circular cotton ball (231).

3. The lens cleaning device for Raman detection according to claim 1, characterized in that: The air pump (21), brush (22) and wiper (23) are arranged in a ring around the center of the support (20), and the distance between each pair of the air pump (21), brush (22) and wiper (23) is greater than the distance of the maximum outer diameter of the objective lens in the external microscope.

4. The lens cleaning device for Raman detection according to claim 1, characterized in that: The drive module (26) includes a first motor (260) installed in the middle of the lower end of the base (25). The output end of the first motor (260) is connected to a rotating frame (261) located inside the base (25). The inner side wall of the rotating frame (261) is connected to a second motor (262). The output end of the second motor (262) is connected to a screw (263). The inside of the rotating frame (261) is connected to a slider (264). The middle of the slider (264) is penetrated by the screw (263). The inside of the base (25) is connected to two guide rails (29) that are vertically distributed on the horizontal plane. The upper end of the slider (264) is connected to a moving block (2640). The moving block (2640) passes through the two guide rails (29) and is connected to the turntable (24).

5. A lens cleaning device for Raman detection according to claim 1, characterized in that: The upper annular side of the base (25) is provided with a number of ball bearings (250) to reduce the friction between the base (25) and the turntable (24).

6. A lens cleaning device for Raman detection according to claim 1, characterized in that: Three distance sensors (27) are connected to the upper outer part of the bracket (20), and the three distance sensors (27) are respectively matched with the air pump (21), the brush (22) and the wiper (23).

7. A lens cleaning device for Raman detection according to claim 1, characterized in that: A third motor (28) is provided in the middle of the turntable (24), and the output end of the third motor (28) is connected to the bottom of the bracket (20).

8. A lens cleaning device for Raman detection according to claim 1, characterized in that: The connecting assembly (3) includes a slide rail (30) connected to an external microscope and an extension rod (31) connected to a base (25). The lower end of the slide rail (30) is connected to a lifting block (32). An electric push rod (33) is connected between the slide rail (30) and the lifting block (32). The lower end of the lifting block (32) is connected to the other end of the extension rod (31).

9. A lens cleaning device for Raman detection according to claim 8, characterized in that: The lower ends of the lifting block (32) extend outward to form baffles (34), and suction cups (35) are installed on the inner sidewalls of the two baffles (34).

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