Lens anti-fogging device for Raman detection

Abstract

The utility model provides a lens anti-fogging device for Raman detection. The lens anti-fogging device comprises an anti-fogging assembly and a supporting assembly, the anti-fog assembly comprises an air pump, a heating ring, a rotating ring, a plurality of spring telescopic pipes and a plurality of sealing caps, the air pump is connected with the heating ring through an air conveying pipe, a heating block is arranged in the heating ring, the rotating ring and the heating ring are rotationally connected and communicate with each other, and the rotating ring communicates with each sealing cap through the corresponding spring telescopic pipe. During use, the air pump is turned on, the air pump extracts external air to enter the heating ring through the air delivery pipe, the heating block is started to heat the air in the heating ring, hot air enters the sealing cap through the rotating ring and the spring telescopic pipe, and the objective lens of an external microscope is blown and preheated, so that the temperature of the objective lens of the microscope is consistent with that of the objective lens after an air conditioner is turned on; the lens of the microscope objective lens is prevented from fogging, and the use convenience of a microscope system in Raman detection is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to raman detection technical field especially, it is a kind of lens anti-fog device for raman detection. BACKGROUND

[0002] Laser microscopic confocal raman spectrometer is a kind of non-destructive microanalysis means, it can be used for studying mineral composition, qualitative determination and confirmation of solid fluid inclusion, realizes the observation and in-situ raman spectrum analysis of sample microstructure by studying the raman spectrum variation characteristics of different substances under laser irradiation.

[0003] In prior art, laser microscopic confocal raman spectrometer is mainly composed of laser light source, sample device, optical filter, monochromator, microscopic system and detector five parts, wherein, microscope system is greatly influenced by external environment.In the case of cold weather, operating personnel will open air conditioning heating after reaching laboratory, and microscope is fogged by cold and hot stimulus, so that sample imaging is not clear, thereby affecting raman detection.

[0004] Therefore, we propose a kind of lens anti-fog device for raman detection to solve the problem that microscope lens for raman detection is prone to fogging in prior art, which affects raman detection. UTILITY MODEL CONTENT

[0005] In view of the above-mentioned shortcomings of prior art, the purpose of the utility model is to provide a kind of lens anti-fog device for raman detection, comprising: anti-fog component and support component;

[0006] The anti-fog component includes air pump, heating ring, rotating ring, several spring telescopic pipes and several sealing caps, the air pump is connected with heating ring by gas pipe, the inside of heating ring is equipped with heating block, the rotating ring is rotatably connected with heating ring and is interconnected, the rotating ring is communicated with each sealing cap by spring telescopic pipe, each sealing cap is matched with one objective lens on external microscope;The heating ring can be connected with the adapter base of external microscope;The rotating ring can be connected with the adapter of external microscope, for rotating with adapter;

[0007] The support component is used to support sealing cap.

[0008] Preferably, the air pump can be connected with external microscope, and the air inlet end of the air pump is connected with a filter screen.

[0009] Preferably, the heating block is annular heating wire, for uniformly heating the gas in the inside of heating ring.

[0010] Preferably, the inner bottom of the sealing cap is provided with a shunt cavity for connecting the inside of the sealing cap with the spring telescopic pipe and shunting gas; and the bottom of the sealing cap is provided with a circular array of one-way gas outlet holes.

[0011] Preferably, an annular clamping block is mounted on the inner sidewall of the sealing cap, and a sealing ring is mounted on the inner bottom of the sealing cap.

[0012] Preferably, the support assembly comprises a slide rail connected with an adapter of an external microscope, and a protrusion formed by outward extension of the sealing cap, a support is connected between the slide rail and the protrusion, the upper ends of the two sides of the support extend inward to form slide blocks, the two ends of the slide rail are provided with slide grooves matched with the slide blocks, and a second spring is connected between the bottom of each slide block and the inner bottom of the corresponding slide groove of the slide rail.

[0013] Preferably, the outer sidewall bottom of the support is connected with a fixing block, and the spring telescopic pipe penetrates through the fixing block.

[0014] As described above, the lens anti-fog device for Raman detection has the following beneficial effects: the gas pump, the heating ring, the rotating ring, the spring telescopic pipes and the sealing caps are arranged, the external gas is drawn into the heating ring through the gas conveying pipe by opening the gas pump, the heating block is started to heat the gas in the heating ring, the hot gas enters the sealing caps through the rotating ring and the spring telescopic pipes to preheat the objective lens of the external microscope, the temperature of the objective lens of the microscope is consistent with the room temperature after the air conditioner is turned on, the objective lens of the microscope is prevented from fogging, and the use convenience of the microscope system in Raman detection is improved.

[0015] Meanwhile, the slide rail, the protrusion, the support, the slide block and the second spring are arranged, after the preheating is completed, the sealing cap is pulled downward to separate the sealing cap from the objective lens, the sealing cap drives the protrusion, the support and the slide block to move downward, the second spring is compressed, the sealing cap is rotated to drive the protrusion to rotate around the support, the protrusion is parallel to the support, the slide block is pushed to move upward under the action of the second spring, the slide block drives the sealing cap to rise through the support and the protrusion, the sealing cap is supported, and the sealing cap is conveniently moved to avoid blocking the objective lens.

[0016] Therefore, the lens anti-fog device for Raman detection has high industrial utilization value and effectively overcomes the shortcomings in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A perspective view of the lens anti-fog device for Raman detection is shown.

[0018] Figure 2 A perspective view of the lens anti-fog device for Raman detection is shown.Figure 1 Enlarged view of section A in the middle.

[0019] Figure 3 The image shown is a cross-sectional view of the heating ring of a lens anti-fogging device for Raman detection according to this utility model.

[0020] Figure 4 The image shown is a cross-sectional view of a sealing cap of a lens anti-fogging device for Raman detection according to this utility model.

[0021] Figure 5 The image shown is a cross-sectional view of a support for a lens anti-fogging device used in Raman spectroscopy according to this invention.

[0022] Component designation explanation

[0023] 2. Anti-fog component; 20. Air pump; 21. Heating ring; 22. Rotating ring; 23. Spring telescopic tube; 24. Sealing cap; 240. Diverter chamber; 241. One-way air outlet; 242. Annular retaining block; 243. Sealing ring;

[0024] 3. Support component; 30. Slide rail; 31. Protrusion; 32. Bracket; 33. Slider; 34. Second spring; 35. Fixing block. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1 to 5 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.

[0027] like Figures 1-5 As shown, this utility model provides a lens anti-fogging device for Raman detection, including: an anti-fogging component 2 and a support component 3; a rectangular bracket is provided between the eyepiece and the objective lens of an external microscope for connecting to an external Raman spectrometer.

[0028] The anti-fog assembly 2 comprises an air pump 20, a heating ring 21, a rotating ring 22, a plurality of spring telescopic tubes 23 and a plurality of sealing caps 24, the air pump 20 is connected with the heating ring 21 through a gas conveying pipe, the inside of the heating ring 21 is provided with a heating block, the rotating ring 22 is rotationally connected with the heating ring 21 and is in communication with each other, the spring telescopic tube 23 is arranged between the rotating ring 22 and each sealing cap 24, and each sealing cap 24 is matched with an objective lens on an external microscope. In use, each sealing cap 24 is sleeved on the corresponding objective lens, the air pump 20 is started, the air pump 20 draws external gas into the heating ring 21 through the gas conveying pipe, the heating block is started to heat, the gas in the heating ring 21 is heated, the hot gas enters the rotating ring 22 from the heating ring 21, and then is distributed into each sealing cap 24 through the spring telescopic tube 23, so that the objective lens is preheated by blowing. The heating ring 21 can be connected with an adapter base of the external microscope; the rotating ring 22 can be connected with an adapter of the external microscope and is used for rotating with the adapter, so that each sealing cap 24 rotates with the corresponding objective lens, the flexibility is improved, and movement interference caused by the fixed heating ring 21 and the rotating ring 22 is avoided. The anti-fog assembly 2 is used for preheating and defogging the microscope in cold weather, preventing the lens from being blurred and affecting the effect of Raman detection. The support assembly 3 is used for supporting the sealing cap 24.

[0029] In an embodiment, as shown in Figures 1-3 , the air pump 20 can be connected with the external microscope, and a filter screen is connected to the air inlet end of the air pump 20. The filter screen is arranged to filter and remove dust from the gas entering the air pump 20, so that the objective lens is not dusty when the gas is blown, and the imaging of the sample is not affected.

[0030] In an embodiment, as shown in Figures 1-3 , the heating block is a ring-shaped heating wire, which is used for uniformly heating the gas in the heating ring 21, so that the heat received by each objective lens during preheating is basically the same.

[0031] In an embodiment, as shown in Figures 1-2 and Figure 4 , the inner bottom of the sealing cap 24 is provided with a distribution cavity 240, which is used for connecting the inside of the sealing cap 24 with the spring telescopic tube 23 and distributing the gas, so that the gas is uniformly blown to the surface of the objective lens for preheating operation; the bottom of the sealing cap 24 is provided with a circular array of one-way air outlet holes 241, when the hot gas enters the inside of the sealing cap 24, the pressure rises, and the excess air is discharged from the one-way air outlet holes 241, so that the gas in the sealing cap 24 is circulated.

[0032] In an embodiment, as shown in Figures 1-2 and Figure 4The inner side wall of the sealing cap 24 is provided with an annular clamping block 242, the annular clamping block 242 is elastic, and the sealing cap 24 can be clamped with the objective lens through the annular clamping block 242. The inner bottom of the sealing cap 24 is provided with a sealing ring 243, and the upper surface of the sealing ring 243 is attached to the annular lower surface of the objective lens when the sealing cap 24 is clamped with the objective lens.

[0033] In an embodiment, referring to Figures 1-2 and Figure 5 The support assembly 3 comprises a sliding rail 30 connected with an adapter of an external microscope, and a protrusion 31 formed by outward extension of the sealing cap 24, the sliding rail 30 and the protrusion 31 are connected with a support 32, the upper ends of the support 32 are inwardly extended to form sliding blocks 33 on both sides, the two ends of the sliding rail 30 are provided with sliding grooves matched with the sliding blocks 33, and the bottom of each sliding block 33 is connected with the inner bottom of the corresponding sliding groove of the sliding rail 30 through a second spring 34. The sliding rail 30, the protrusion 31 and the support 32 cooperate to support the sealing cap 24, after the sealing cap 24 is opened, the elastic force of the second spring 34 on the sliding block 33 drives the sliding block 33 to move upwards along the sliding rail 30, thereby driving the support 32 and the protrusion 31 to move upwards, and further driving the sealing cap 24 to rotate upwards and move out of the observation range of the objective lens, so as to avoid affecting the observation of the sample.

[0034] In an embodiment, referring to Figures 1-2 and Figure 5 The bottom of the outer side wall of the support 32 is connected with a fixing block 35, and the spring telescopic pipe 23 penetrates through the fixing block 35. The fixing block 35 is used for fixing the spring telescopic pipe 23, so as to avoid that the spring telescopic pipe 23 is bent with the protrusion 31 and blocks the gas conveying channel.

[0035] The specific use process of the utility model is as follows: after the experimental personnel enters the laboratory, the air pump 20 is opened, the air pump 20 draws external gas into the heating ring 21 through the gas conveying pipe, the heating block is started to heat the gas in the heating ring 21, and the hot gas enters the sealing cap 24 through the rotating ring 22 and the spring telescopic pipe 23 to preheat the objective lens of the external microscope by blowing gas;

[0036] After the preheating is completed, the sealing cap 24 is pulled downwards to make the sealing cap 24 separate from the objective lens, the sealing cap 24 drives the protrusion 31, the support 32 and the sliding block 33 to move downwards, and the second spring 34 is compressed, the sealing cap 24 is rotated, the protrusion 31 is driven to rotate around the support 32, the protrusion 31 is parallel to the support 32, the sliding block 33 is driven to move upwards under the action of the second spring 34, the sliding block 33 drives the sealing cap 24 to rise through the support 32 and the protrusion 31, and the objective lens is avoided from being shielded.

[0037] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. A lens anti-fogging device for Raman spectroscopy, characterized in that, include: Anti-fog component (2) and support component (3); The anti-fog assembly (2) includes an air pump (20), a heating ring (21), a rotating ring (22), several spring telescopic tubes (23), and several sealing caps (24). The air pump (20) is connected to the heating ring (21) through an air supply pipe. The heating ring (21) has a heating block inside. The rotating ring (22) is rotatably connected to the heating ring (21) and communicates with each other. The rotating ring (22) is connected to each sealing cap (24) through a spring telescopic tube (23). Each sealing cap (24) is matched with an objective lens on an external microscope. The heating ring (21) can be connected to the adapter base of the external microscope. The rotating ring (22) can be connected to the adapter of the external microscope and is used to rotate with the adapter. The support component (3) is used to support the sealing cap (24).

2. The lens anti-fogging device for Raman detection according to claim 1, characterized in that: The air pump (20) can be connected to an external microscope, and the air inlet of the air pump (20) is connected to a filter screen.

3. The lens anti-fogging device for Raman detection according to claim 1, characterized in that: The heating block is a ring-shaped heating wire used to uniformly heat the gas inside the heating ring (21).

4. The lens anti-fogging device for Raman detection according to claim 1, characterized in that: The sealing cap (24) has a flow-diverting cavity (240) at its inner bottom, which is used to connect the inside of the sealing cap (24) with the spring telescopic tube (23) and to divert the gas; the bottom of the sealing cap (24) has a circular array of unidirectional air outlet holes (241).

5. The lens anti-fogging device for Raman detection according to claim 1, characterized in that: An annular locking block (242) is installed on the inner wall of the sealing cap (24), and a sealing ring (243) is installed on the inner bottom of the sealing cap (24).

6. The lens anti-fogging device for Raman detection according to claim 1, characterized in that: The support assembly (3) includes a slide rail (30) connected to an adapter for an external microscope, and a protrusion (31) formed by the outward extension of a sealing cap (24). A bracket (32) is connected between the slide rail (30) and the protrusion (31). Slider blocks (33) are formed on both sides of the upper end of the bracket (32). Both ends of the slide rail (30) are provided with grooves that match the sliders (33). A second spring (34) is connected between the bottom of each slider (33) and the inner bottom of the corresponding groove on the slide rail (30).

7. A lens anti-fogging device for Raman detection according to claim 6, characterized in that: A fixing block (35) is connected to the bottom of the outer side wall of the bracket (32), and the spring telescopic tube (23) passes through the fixing block (35).

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