Spectrophotometer for chromatographic detector

Abstract

The spectrophotometer comprises a photometer main body, a light source cavity is arranged in the photometer main body, a light splitting cavity is arranged on one side of the light source cavity, a detection cavity is arranged on one side of the light splitting cavity, a deuterium lamp, a heat dissipation fan, a light source partition plate, a first light outlet, a heat dissipation hole and a dustproof net are arranged in the light source cavity, and the deuterium lamp is fixedly connected to a shell. A heat dissipation fan is arranged on one side of the deuterium lamp, a lamp source partition plate is arranged on one side of the heat dissipation fan and fixedly connected to the shell, a heat dissipation hole is formed in one side of the heat dissipation fan and integrally formed in the shell, a dustproof net is fixedly connected in the heat dissipation hole, and a first light outlet is formed in the lamp source partition plate. The first light outlet is integrally formed in the lamp source partition plate, it can be guaranteed that the temperature in the light source cavity is not too high through the cooling fan, and the lamp source is not damaged, and external dust can be prevented from entering equipment through the dustproof net.

Description

Technical Field

[0001] The utility model relates to a spectrophotometer, in particular to a spectrophotometer for a chromatographic detector. Background Art

[0002] A spectrophotometer, also known as a spectrometer, is a scientific instrument that decomposes complex light into its spectral lines. The measurement range generally includes the visible light region (380-780 nm) and the ultraviolet light region (200-380 nm). Different light sources have unique emission spectra, so different illuminants can be used as the instrument's light source.

[0003] A spectrophotometer requires a lamp source to emit light, but the enclosed space of the instrument usually causes a large amount of heat to accumulate in the lamp source cavity. Long-term operation may cause the lamp source to overheat, resulting in a short working life. Utility Model Content

[0004] The purpose of the present invention is to provide a spectrophotometer for a chromatographic detector to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A spectrophotometer for a chromatographic detector has a light source cavity provided in a photometer body, a spectroscopic cavity provided on one side of the light source cavity, and a detection cavity provided on one side of the spectroscopic cavity. The light source cavity includes a deuterium lamp, a cooling fan, a light source partition, a first light outlet, a heat dissipation hole, and a dust screen. The deuterium lamp is fixedly connected to a housing, a cooling fan is provided on one side of the deuterium lamp, a light source partition is provided on one side of the heat dissipation fan, the light source partition is fixedly connected to the housing, the cooling fan is fixedly connected to the light source partition, a heat dissipation hole is provided on one side of the heat dissipation fan, the heat dissipation hole is integrally formed on the housing, a dust screen is fixedly connected to the heat dissipation hole, a first light outlet is provided on the light source partition, and the first light outlet is integrally formed on the light source partition.

[0007] As a further solution of the present utility model: the photometer body includes a shell, a detection cavity plate, a light source cavity plate, a control panel, and a circuit board. The shell is provided with a detection cavity plate, which is rotatably clamped on the shell. A control panel is provided on one side of the detection cavity plate, which is fixedly connected to the shell. A light source cavity plate is provided on one side of the control panel, which is rotatably clamped on the shell. A circuit board is provided in the shell, and the circuit board is fixedly connected to the shell.

[0008] As a further scheme of the utility model: the first light reflection support, the first reflector, the second light reflection support, the rotating support, the light splitting grid, the third light reflection support, the second reflector, the light splitting partition, the second light outlet, the rotating groove, the rotating tooth, the control gear, the control rod, the control knob are included in the light splitting cavity, the light splitting partition is equipped in the shell, the light splitting partition is fixedly connected on the shell, the first light reflection support is equipped in the light splitting cavity, the first light reflection support is fixedly connected on the shell, the first reflector is equipped on the first light reflection support, the first reflector is fixedly connected on the first light reflection support, the second light reflection support is fixedly connected on the light source partition and the light splitting partition, the rotating support is equipped in the second light reflection support, the rotating groove is equipped on the rotating support, the rotating groove is integrally formed on the rotating support, the rotating support is clamped on the second light reflection support through the rotating groove, the light splitting grid is equipped on the rotating support, the light splitting grid is fixedly connected on the rotating support, the third light reflection support is equipped on the side of the first light reflection support, the third light reflection support is fixedly connected on the shell, the second reflector is equipped on the third light reflection support, the second reflector is fixedly connected on the third light reflection support, the second light outlet is equipped on the light splitting partition, and the second light outlet is fixedly connected on the light splitting partition.

[0009] As a further scheme of the utility model: the rotating tooth is equipped below the rotating support, the rotating tooth is fixedly connected on the rotating support, the control gear is meshingly connected with the rotating tooth, the control rod is fixedly connected on the control gear, the control knob is fixedly connected on one end of the control rod, and the control knob is rotatably connected on the outside of the shell.

[0010] As a further scheme of the utility model: the sample groove and the light absorption plate are included in the detection cavity, the sample groove is fixedly connected on the shell, and the light absorption plate is fixedly connected on the shell on the side of the sample groove.

[0011] Compared with the prior art, the utility model has the advantages of:

[0012] The heat dissipation fan can ensure that the temperature in the light source cavity is not too high, so that the light source is not damaged, the dust screen can prevent external dust from entering the equipment and affecting the light path of the light source, and the rotating support can adjust the light splitting grid to adjust the light splitting area reflected into the detection cavity. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a kind of structure schematic diagram of spectrophotometer for chromatographic detector.

[0014] Figure 2 It is a kind of structure schematic diagram of inside in spectrophotometer for chromatographic detector.

[0015] Figure 3 It is a kind of structure schematic diagram of side view in spectrophotometer for chromatographic detector.

[0016] Figure 4It is a structural schematic view of a rotating support of a spectrophotometer for a chromatographic detector. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0018] Please refer to Figures 1 to 4 In the embodiments of the present application, a spectrophotometer for a chromatographic detector comprises a photometer main body 100, a lamp source cavity 200, a light splitting cavity 300 and a detection cavity 400.

[0019] The lamp source cavity 200 is arranged in the photometer main body 100, the light splitting cavity 300 is arranged on one side of the lamp source cavity 200, and the detection cavity 400 is arranged on one side of the light splitting cavity 300.

[0020] The photometer main body 100 comprises a shell 101, a detection cavity plate 102, a light source cavity plate 103, a control panel 104 and a circuit board 105. The detection cavity plate 102 is arranged on the shell 101 and rotationally connected to the shell 101. The control panel 104 is arranged on one side of the detection cavity plate 102 and fixedly connected to the shell 101. The light source cavity plate 103 is arranged on one side of the control panel 104 and rotationally connected to the shell 101. The circuit board 105 is arranged in the shell 101 and fixedly connected to the shell 101.

[0021] The lamp source cavity 200 comprises a deuterium lamp 201, a heat dissipation fan 202, a lamp source partition plate 203, a first light outlet 204, a heat dissipation hole 205 and a dust screen 206. The deuterium lamp 201 is fixedly connected to the shell 101. The heat dissipation fan 202 is arranged on one side of the deuterium lamp 201. The lamp source partition plate 203 is arranged on one side of the heat dissipation fan 202 and fixedly connected to the shell 101. The heat dissipation fan 202 is fixedly connected to the lamp source partition plate 203. The heat dissipation hole 205 is arranged on one side of the heat dissipation fan 202 and integrally formed on the shell 101. The dust screen 206 is fixedly connected in the heat dissipation hole 205. The first light outlet 204 is arranged on the lamp source partition plate 203 and integrally formed on the lamp source partition plate 203.

[0022] The spectroscopic cavity 300 includes a first reflective bracket 301, a first reflective mirror 302, a second reflective bracket 303, a rotating bracket 304, a spectroscopic grid 305, a third reflective bracket 306, a second reflective mirror 307, a spectroscopic baffle 308, a second light outlet 309, a rotating slot 310, a rotating tooth 311, a control gear 312, a control rod 313, and a control knob 314. The spectroscopic baffle 308 is provided in the housing 101 and is fixedly connected to the housing 101. The spectroscopic cavity 300 is provided with a first reflective bracket 301 and is fixedly connected to the housing 101. The first reflective bracket 301 is provided with a first reflective mirror 302 and the first reflective mirror 302 is fixedly connected to the first reflective bracket 301. The second reflective bracket 303 is fixedly connected to the light source baffle 20 3 and the light-splitting baffle 308, the second reflective bracket 303 is provided with a rotating bracket 304, the rotating bracket 304 is provided with a rotating slot 310, the rotating slot 310 is integrally formed on the rotating bracket 304, the rotating bracket 304 is clamped to the second reflective bracket 303 through the rotating slot 310, the rotating bracket 304 is provided with a light-splitting grid 305, and the light-splitting grid 305 is fixedly connected to the rotating bracket 304, a third reflective bracket 306 is provided on one side of the first reflective bracket 301, the third reflective bracket 306 is fixedly connected to the housing 101, the third reflective bracket 306 is provided with a second reflective mirror 307, and the second reflective mirror 307 is fixedly connected to the third reflective bracket 306, the light-splitting baffle 308 is provided with a second light outlet 309, and the second light outlet 309 is fixedly connected to the light-splitting baffle 308.

[0023] A rotating tooth 311 is provided below the rotating bracket 304, and the rotating tooth 311 is fixedly connected to the rotating bracket 304. The rotating tooth 311 is meshed with a control gear 312, and a control rod 313 is fixedly connected to the control gear 312. One end of the control rod 313 is fixedly connected to a control knob 314, and the control knob 314 is rotatably connected to the outside of the shell 101.

[0024] The detection cavity 400 includes a sample slot 401 and a light absorbing plate 402 . The sample slot 401 is fixedly connected to the housing 101 . A light absorbing plate 402 is provided on one side of the sample slot 401 . The light absorbing plate 402 is fixedly connected to the housing 101 .

[0025] The working principle of this utility model is:

[0026] During operation, the cooling fan 202 can ensure that the temperature in the light source cavity 200 will not be too high, causing damage to the lamp source. The dustproof net 206 can prevent external dust from entering the device and affecting the light path of the lamp source. The rotating bracket 304 can adjust the spectroscopic grid 305 to adjust the spectroscopic area reflected into the detection cavity.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A spectrophotometer for a chromatographic detector, comprising a photometer body (100), a lamp source cavity (200), a spectroscopic cavity (300), and a detection cavity (400), characterized in that: A light source cavity (200) is provided in a photometer body (100), a spectroscopic cavity (300) is provided on one side of the light source cavity (200), a detection cavity (400) is provided on one side of the spectroscopic cavity (300), the light source cavity (200) includes a deuterium lamp (201), a heat dissipation fan (202), a light source partition (203), a first light outlet (204), a heat dissipation hole (205), and a dustproof net (206), the deuterium lamp (201) is fixedly connected to the housing (101), a heat dissipation fan (202) is provided on one side of the deuterium lamp (201), and the heat dissipation fan (203) is provided on one side of the deuterium lamp (201). 02) is provided with a light source partition (203) on one side, the light source partition (203) is fixedly connected to the housing (101), the heat dissipation fan (202) is fixedly connected to the light source partition (203), a heat dissipation hole (205) is provided on one side of the heat dissipation fan (202), the heat dissipation hole (205) is integrally formed on the housing (101), a dustproof net (206) is fixedly connected in the heat dissipation hole (205), a first light outlet (204) is provided on the light source partition (203), and the first light outlet (204) is integrally formed on the light source partition (203).

2. A spectrophotometer for a chromatographic detector according to claim 1, characterized in that: The photometer body (100) includes a housing (101), a detection cavity plate (102), a light source cavity plate (103), a control panel (104), and a circuit board (105). The housing (101) is provided with a detection cavity plate (102), the detection cavity plate (102) is rotatably connected to the housing (101), a control panel (104) is provided on one side of the detection cavity plate (102), the control panel (104) is fixedly connected to the housing (101), a light source cavity plate (103) is provided on one side of the control panel (104), the light source cavity plate (103) is rotatably connected to the housing (101), a circuit board (105) is provided in the housing (101), and the circuit board (105) is fixedly connected to the housing (101).

3. The spectrophotometer for a chromatographic detector according to claim 1, wherein: The spectroscopic cavity (300) includes a first reflective support (301), a first reflective mirror (302), a second reflective support (303), a rotating support (304), a spectroscopic grid (305), a third reflective support (306), a second reflective mirror (307), a spectroscopic partition (308), a second light outlet (309), a rotating slot (310), a rotating tooth (311), a control gear (312), a control rod (313), a control knob (314), and a housing (1 01) is provided with a light splitting partition (308), the light splitting partition (308) is fixedly connected to the housing (101), a first light reflecting bracket (301) is provided in the light splitting cavity (300), the first light reflecting bracket (301) is fixedly connected to the housing (101), a first light reflecting mirror (302) is provided on the first light reflecting bracket (301), the first light reflecting mirror (302) is fixedly connected to the first light reflecting bracket (301), and a second light reflecting bracket (303) is fixedly connected to the light source partition ( 203) and the light splitting partition (308), a rotating bracket (304) is provided in the second light reflecting bracket (303), a rotating groove (310) is provided on the rotating bracket (304), the rotating groove (310) is integrally formed on the rotating bracket (304), the rotating bracket (304) is clamped on the second light reflecting bracket (303) through the rotating groove (310), a light splitting grid (305) is provided on the rotating bracket (304), and the light splitting grid (305) is fixedly connected to the rotating bracket ( 304), a third reflective bracket (306) is provided on one side of the first reflective bracket (301), the third reflective bracket (306) is fixedly connected to the housing (101), a second reflective mirror (307) is provided on the third reflective bracket (306), the second reflective mirror (307) is fixedly connected to the third reflective bracket (306), a second light outlet (309) is provided on the light splitting baffle (308), and the second light outlet (309) is fixedly connected to the light splitting baffle (308).

4. The spectrophotometer for a chromatographic detector according to claim 1, wherein: A rotating tooth (311) is provided below the rotating bracket (304), the rotating tooth (311) is fixedly connected to the rotating bracket (304), the rotating tooth (311) is meshedly connected to a control gear (312), a control rod (313) is fixedly connected to the control gear (312), one end of the control rod (313) is fixedly connected to a control knob (314), and the control knob (314) is rotatably connected to the outside of the housing (101).

5. The spectrophotometer for a chromatographic detector according to claim 1, wherein: The detection cavity (400) includes a sample tank (401) and a light absorption plate (402). The sample tank (401) is fixedly connected to the housing (101). A light absorption plate (402) is provided on one side of the sample tank (401). The light absorption plate (402) is fixedly connected to the housing (101).

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