Spectrometer for detecting low-concentration gas

Abstract

The utility model relates to the technical field of spectrometers, in particular to a spectrograph for detecting low-concentration gas, which comprises a spectrograph shell and a support frame, the support frame is fixedly mounted at the bottom end of the spectrograph shell, a laser detection head is mounted at one end of the spectrograph shell, a heat dissipation frame is mounted at the top end of the spectrograph shell, and the heat dissipation frame is fixedly mounted on the support frame. The outer wall of the heat dissipation frame is sleeved with a sealing cover, a filter screen body is installed in the sealing cover, a display screen body is installed at the end, away from the laser detection head, of the spectrograph shell, and the positioning and fixing mechanism comprises a fixing sleeve which is fixedly installed at the top end of the spectrograph shell. And a fixed rod is arranged in the fixed sleeve. According to the filter screen, firstly, the limiting blocks are not clamped with the limiting grooves, so that the sealing cover can be positioned and fixed more firmly, and an operator can conveniently detach the sealing cover to clean the filter screen main body.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of spectrometer, especially a spectrometer for detecting low concentration gas. BACKGROUND

[0002] The laser gas spectrometer is a kind of high-precision, high-sensitivity gas detection instrument, which can analyze gas by laser technology and optical detection technology, and it can monitor the concentration of various gas components in real time, including harmful gas, fuel gas and oxygen in air, and is widely used in environmental protection, safety, medical treatment, industry and other fields.

[0003] At present, most of the spectrometers for detecting low concentration gas on the market are prone to overheating inside the spectrometer when detecting low concentration gas for a long time, thereby affecting the service life of electrical components inside the spectrometer, and when the spectrometer is cooled, it is inconvenient for the operator to disassemble and clean the filter screen, thereby affecting the cooling effect of the spectrometer. UTILITY MODEL CONTENT

[0004] The purpose of this section is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above or existing problems in the prior art, most of the spectrometers for detecting low concentration gas on the market are prone to overheating inside the spectrometer when detecting low concentration gas for a long time, thereby affecting the service life of electrical components inside the spectrometer, and when the spectrometer is cooled, it is inconvenient for the operator to disassemble and clean the filter screen, thereby affecting the cooling effect of the spectrometer, so the utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a spectrometer for detecting low concentration gas.

[0007] To solve the above technical problems, the utility model provides the following technical scheme: a spectrometer for detecting low concentration gas, including spectrometer shell, it includes support frame, the support frame is fixedly installed at the bottom end of spectrometer shell, one end of the spectrometer shell is provided with laser detection head, the top end of the spectrometer shell is provided with heat dissipation frame, and the outer wall of heat dissipation frame is provided with sealing cover, the inside of sealing cover is installed with filter screen main body, and the end of spectrometer shell away from laser detection head is provided with display screen main body;

[0008] The positioning and fixing mechanism comprises a fixing sleeve fixedly installed at the top end of the spectrometer shell, a fixed rod is arranged in the fixing sleeve, a connecting rod is rotatably installed at the top end of the fixed rod through a bearing, a connecting plate is installed at the top end of the connecting rod, and a limiting block is installed at the bottom end of the connecting plate.

[0009] As a preferred scheme of the spectrometer for detecting low-concentration gas, the side wall of the inner end of the laser detection head is provided with an air inlet fan, the side wall of the inner end of the laser detection head is provided with a laser detection convex mirror, and the side wall of the inner end of the laser detection head is provided with an air inlet hole.

[0010] By adopting the above technical scheme, the air outside the spectrometer is brought into the interior through the air inlet hole by starting the air inlet fan, and the entering air is detected.

[0011] As a preferred scheme of the spectrometer for detecting low-concentration gas, the inner wall of the spectrometer shell is provided with a fixing plate, one end of the fixing plate is provided with a detection plate, the inner wall of the spectrometer shell is provided with a concave mirror, and the inner wall of the spectrometer shell is provided with a first infrared laser main body and a second infrared laser main body.

[0012] By adopting the above technical scheme, the air entering the interior is detected through the first infrared laser main body and the second infrared laser main body.

[0013] As a preferred scheme of the spectrometer for detecting low-concentration gas, the inner wall of the heat dissipation frame is provided with a heat dissipation fan, and the outer wall of the heat dissipation frame is provided with an external thread.

[0014] By adopting the above technical scheme, the heat dissipation fan is started to facilitate heat dissipation of the hot air in the interior.

[0015] As a preferred scheme of the spectrometer for detecting low-concentration gas, the top end of the sealing cover is provided with a limiting groove, the inner wall of the sealing cover is provided with an internal thread, the internal thread is threadedly connected with the external thread, and the limiting groove and the limiting block are clamped with each other.

[0016] By adopting the above technical scheme, the internal thread is threadedly connected with the external thread, so that the sealing cover is rotated to disassemble the heat dissipation frame.

[0017] As a kind of preferred scheme for the spectrum analyzer for detecting low concentration gas of the utility model, wherein;The inner wall of the fixed sleeve is equipped with slide rail, and the inside of slide rail is provided with sliding block, the one end of sliding block away from slide rail is fixedly connected with the side wall of fixed rod, the bottom end in the fixed sleeve is equipped with spring main body, and the top end of spring main body is fixedly connected with the bottom end of fixed rod.

[0018] By adopting the above technical scheme, the fixed rod drives the sliding block to slide in the inside of the slide rail through the cooperation of the slide rail and the sliding block.

[0019] As a kind of preferred scheme for the spectrum analyzer for detecting low concentration gas of the utility model, wherein;The outer wall of the support frame is equipped with antiskid pad.

[0020] By adopting the above technical scheme, the antiskid pad is designed to avoid the hand slip phenomenon of the operator when holding the support frame.

[0021] The spectrum analyzer for detecting low concentration gas of the utility model has the following beneficial effects:

[0022] The utility model discloses a spectrum analyzer for detecting low concentration gas has the following beneficial effects:

[0023] The utility model discloses a spectrum analyzer for detecting low concentration gas has the following beneficial effects: ATTACHED DRAWINGS

[0024] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the attached drawings needed in the embodiment description will be simply introduced as follows, obviously, the attached drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other attached drawings can be obtained according to these attached drawings without paying the creative labor intensity, wherein:

[0025] Fig. 1 It is a kind of main view structural schematic diagram for the spectrum analyzer for detecting low concentration gas;

[0026] Fig. 2 It is a kind of rear view structural schematic diagram for the spectrum analyzer for detecting low concentration gas;

[0027] Fig. 3 It is a schematic view of internal structure of a spectrometer for detecting low concentration gas;

[0028] Fig. 4 It is a schematic view of heat dissipation frame and sealing cover assembly structure of a spectrometer for detecting low concentration gas;

[0029] Fig. 5 It is a schematic view of fixed sleeve structure of a spectrometer for detecting low concentration gas;

[0030] Fig. 6 It is a schematic view of internal structure of a fixed sleeve of a spectrometer for detecting low concentration gas.

[0031] In the drawings, the components represented by each reference numeral are listed as follows:

[0032] 1, spectrometer shell; 101, support frame; 102, laser detection head; 1021, laser detection convex mirror; 1022, air inlet hole; 1023, air inlet fan; 103, heat dissipation frame; 1031, heat dissipation fan; 1032, external thread; 104, sealing cover; 1041, limiting groove; 1042, internal thread; 105, filter screen main body; 106, display screen main body; 111, fixed plate; 112, detection plate; 113, concave mirror; 114, first infrared laser main body; 115, second infrared laser main body; 116, non-slip pad;

[0033] 2, positioning and fixing mechanism; 201, fixed sleeve; 202, sliding rail; 203, sliding block; 204, fixed rod; 205, connecting rod; 206, connecting plate; 207, limiting block; 208, spring main body. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0035] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0036] Secondly, "one embodiment" or "embodiment" referred to herein means that specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in this specification does not mean the same embodiment, nor is it an embodiment that is independent of or mutually exclusive of other embodiments.

[0037] Embodiment one: refer to Figs. 1-6 , for the first embodiment of the utility model, this embodiment provides a kind of spectrometer for detecting low concentration gas, can realize the spectrometer of most detection low concentration gas in current market, when long time is detected to low concentration gas, it is easy to cause the overheating of temperature inside spectrometer, to thereby influence the service life of electrical element inside spectrometer, simultaneously when spectrometer is heat dissipated, it is inconvenient for operator to disassemble and clean filter screen, to thereby influence the heat dissipation effect of spectrometer, including spectrometer shell 1, it includes support frame 101, support frame 101 is fixedly installed at the bottom end of spectrometer shell 1, one end of spectrometer shell 1 is equipped with laser detection head 102, the top end of spectrometer shell 1 is equipped with heat dissipation frame 103, and the outer wall of heat dissipation frame 103 is equipped with sealing cover 104, filter screen main body 105 is installed in sealing cover 104, anti-slip pad 116 is installed on the outer wall of support frame 101, display screen main body 106 is installed at the end of spectrometer shell 1 away from laser detection head 102, heat dissipation fan 1031 is installed on the inner wall of heat dissipation frame 103, outer thread 1032 is installed on the outer wall of heat dissipation frame 103;

[0038] laser detection head 102 inside one end of side wall is equipped with air inlet fan 1023, laser detection head 102 inside one end of side wall is equipped with laser detection convex mirror 1021, laser detection head 102 inside one end of side wall is equipped with air inlet hole 1022, by starting air inlet fan 1023 to drive external air to enter the inside 102 through air inlet hole 1022, and by 114 and 115 to detect the air entering;

[0039] The inner wall of spectrometer shell 1 is equipped with fixed plate 111, and one end of fixed plate 111 is equipped with detection plate 112, the inner wall of spectrometer shell 1 is equipped with concave mirror 113, the inner wall of spectrometer shell 1 is equipped with first infrared laser main body 114 and second infrared laser main body 115 respectively, by the design of first infrared laser main body 114 and second infrared laser main body 115, to thereby by first infrared laser main body 114 and second infrared laser main body 115 to detect the air entering 102 inside;

[0040] The top end of sealing cover 104 is equipped with limit groove 1041, the inner wall of sealing cover 104 is equipped with internal thread 1042, and internal thread 1042 is threadedly connected with outer thread 1032, limit groove 1041 and limit block 207 are mutually engaged, by internal thread 1042 and outer thread 1032 threadedly connected, to thereby facilitate rotating sealing cover 104 to disassemble heat dissipation frame 103.

[0041] Specific working principle is, first through the start of the cooling fan 1031, and through the cooling fan 1031 start to drive the hot air inside the spectrometer shell 1 through the heat dissipation frame 103 and sealing cover 104 discharge, so as to facilitate the rapid heat dissipation of the spectrometer shell 1, at the same time through the external thread 1032 and the internal thread 1042 thread connection, convenient through the rotation of sealing cover 104, so as to facilitate the disassembly of sealing cover 104.

[0042] Embodiment two: refer to Figs. 1-6 , the first embodiment of the utility model, this embodiment provides a kind of for detecting low concentration gas spectrometer, can realize the spectrometer of most detection low concentration gas in current market, when detecting low concentration gas for a long time, it is easy to cause the overheating of spectrometer internal temperature, to affect the service life of electrical components inside spectrometer, simultaneously when spectrometer is cooled, it is inconvenient for operator to disassemble and clean filter screen, to affect the heat dissipation effect of spectrometer, positioning and fixing mechanism 2, it includes fixed sleeve 201, fixed sleeve 201 is fixedly installed at the top of spectrometer shell 1, the inside of fixed sleeve 201 is provided with fixed rod 204, and the top of fixed rod 204 is rotatably installed with connecting rod 205 by bearing, the top of connecting rod 205 is installed with connecting plate 206, and the bottom of connecting plate 206 is installed with limit block 207;

[0043] The inner wall of fixed sleeve 201 is installed with sliding rail 202, and the inside of sliding rail 202 is provided with sliding block 203, one end of sliding block 203 away from sliding rail 202 is fixedly connected with the side wall of fixed rod 204, the bottom of the inside of fixed sleeve 201 is installed with spring body 208, and the top of spring body 208 is fixedly connected with the bottom of fixed rod 204, by the mutual cooperation of sliding rail 202 and sliding block 203, make fixed rod 204 drive sliding block 203 slide in the inside of sliding rail 202.

[0044] Specific working principle is, when needing to position and fix sealing cover 104, first by the mutual cooperation of sliding rail 202 and sliding block 203, and by pulling connecting plate 206 upwards to drive connecting rod 205 to slide in the inside of sliding rail 202 through sliding block 203 and pull spring body 208 to deform, convenient for the lifting of connecting plate 206 to drive limit block 207 not to be engaged with limit slot 1041, so as to be not engaged with limit block 207 and limit slot 1041, so as to facilitate the positioning and fixing of sealing cover 104 more firm, convenient for operator to disassemble sealing cover 104 to clean filter screen body 105.

[0045] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A spectrometer for detecting low concentrations of a gas, characterized by: The utility model relates to a laser spectrum analyzer, which comprises a spectrum analyzer shell (1), a positioning and fixing mechanism (2) and a display screen main body (106). An air inlet fan (1023) is mounted on the side wall of the inner end of the laser detection head (102). An air inlet hole (1022) is formed in the side wall of the inner end of the laser detection head (102).

2. A spectrometer for detecting low concentrations of gases as claimed in claim 1, wherein: A fixed plate (111) is mounted on the inner wall of the spectrum analyzer shell (1), and one end of the fixed plate (111) is provided with a detection plate (112).

3. A spectrometer for detecting low concentrations of gases as claimed in claim 2, wherein: A concave mirror (113) is mounted on the inner wall of the spectrum analyzer shell (1), and the inner wall of the spectrum analyzer shell (1) is respectively provided with a first infrared laser main body (114) and a second infrared laser main body (115).

4. The optical spectrometer for detecting low concentrations of gases of claim 1, wherein: A heat dissipation fan (1031) is mounted on the inner wall of the heat dissipation frame (103), and an outer thread (1032) is mounted on the outer wall of the heat dissipation frame (103).

5. A spectrometer for detecting low concentrations of gases as claimed in claim 4, characterised in that: An inner thread (1042) is mounted on the inner wall of the sealing cover (104), and the inner thread (1042) is in threaded connection with the outer thread (1032).

6. A spectrometer for detecting low concentrations of gases as defined in claim 1, wherein: Limiting grooves (1041) are formed in the top end of the sealing cover (104), and the limiting grooves (1041) are in clamping connection with the limiting blocks (207).

7. The optical spectrometer for detecting low concentrations of gases of claim 1, wherein: Sliding rails (202) are mounted on the inner wall of the fixed sleeve (201), and the sliding rails (202) are provided with sliding blocks (203) inside.

8. The optical spectrometer for detecting low concentrations of gases of claim 1, wherein: The end, away from the sliding rail (202), of the sliding block (203) is fixedly connected with the side wall of the fixed rod (204), a spring main body (208) is mounted at the bottom end inside the fixed sleeve (201), and the top end of the spring main body (208) is fixedly connected with the bottom end of the fixed rod (204).

9. A spectrometer for detecting low concentrations of gases as claimed in claim 8, characterised in that: An antiskid pad (116) is mounted on the outer wall of the support frame (101).

10. The optical spectrometer for detecting low concentrations of gases of claim 1, wherein: ​

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