Light attenuation device for water quality spectrum detection

Abstract

The utility model discloses a light attenuation device for water quality spectrum detection, and belongs to the field of spectrum water quality detection. Comprising a pressing plate, a base, an adjusting seat, an adjusting pressing plate, a collimating device and an unthreaded hole adjusting body, the light-operated adjuster is fixedly installed on the base through the pressing plate and the adjusting plate, so that unthreaded hole adjustment is achieved, light intensity can be adjusted in a stepless mode, and optimal light intensity selection is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of spectral method water quality detection, especially water quality spectral detection light attenuation device. BACKGROUND

[0002] With the application of spectral method water quality monitoring technology in the field of water quality detection, the current water quality detection light source mainly includes deuterium lamp, halogen lamp, LED lamp and pulse xenon lamp, and the deuterium-halogen two-in-one light source and pulse xenon lamp are mainly used for full-spectrum water quality detection light source, but the deuterium-halogen two-in-one light source is influenced by preheating time, service life and other factors, and is only relatively more applied in laboratory environment, and the pulse xenon lamp is a cold light source, does not need preheating, and has wide spectral coverage, so that it is the preferred light source of most water quality detection equipment. UTILITY MODEL CONTENT

[0003] The utility model discloses a water quality spectral detection light attenuation device to solve the technical problems in the above background art.

[0004] The utility model discloses the following technical scheme: a water quality spectral detection light attenuation device, which comprises a base, a pressing plate and an adjusting seat connected in sequence; the base, the pressing plate and the adjusting seat have a concentric cavity therebetween; and further comprising:

[0005] A light hole adjusting main body is installed in the base; the light hole adjusting main body is connected with the adjusting seat;

[0006] A collimating device comprises a left collimating mirror and a right collimating mirror, which are respectively installed on the base and the pressing plate; the left collimating mirror, the light hole adjusting main body and the right collimating mirror form an inner diameter adjustable light path.

[0007] In a further embodiment, a base inner circular end is formed in the interior of the base; a base outer circular end is arranged on one side surface of the base, and the base outer circular end is communicated with the base inner circular end; and the base outer circular end is arranged to install the right collimating mirror.

[0008] In a further embodiment, a pressing plate outer circular end is arranged on one end surface of the pressing plate and is connected with the pressing plate; the pressing plate outer circular end is threadedly adapted to the base; a pressing plate inner circular end is arranged in the interior of the pressing plate, and the pressing plate inner circular end is arranged to fix the left collimating mirror.

[0009] In a further embodiment, an adjusting seat inner circular end is formed in the interior of the adjusting seat; and the adjusting seat inner circular end is threadedly connected to the base.

[0010] In a further embodiment, the adjusting main body comprises:

[0011] A fixed seat is tightly installed in the base; a light passing hole is formed at the center of the fixed seat, and a hollow structure with a predetermined length is arranged on one side of the light passing hole;

[0012] A plurality of convex columns are installed at equal distances on the fixed seat; an adjusting blade is rotatably installed on each convex column, and a guide column is fixed on the adjusting blade;

[0013] A rotating seat is concentrically installed inside the fixed seat; a plurality of unequal diameter grooves are formed on the rotating seat, and the guide columns are correspondingly located in the unequal diameter grooves; a connecting piece is arranged at a specified position of the rotating seat, the connecting piece passes through the hollow structure and is connected with the adjusting seat through an adjusting pressing plate.

[0014] In a further embodiment, the adjusting body further comprises a stop piece for tightly pressing the rotating seat in the fixed seat to limit the axial freedom degree.

[0015] In a further embodiment, the light passing hole adjusting body is adjusted to the maximum position and the minimum position by the adjusting seat, and the diameter of the light passing path is 10mm to 0mm.

[0016] The base, the pressing plate and the adjusting seat of the utility model are detachably connected with each other, which is convenient for maintenance. Meanwhile, the light passing hole adjusting body is controlled through the adjusting seat, the inner diameter of the light passing path is adjustable, the stepless attenuation of light intensity can be effectively realized, and the light intensity required by the light spectrum equipment can be quickly adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure provided by the utility model.

[0018] Figure 2 is a schematic diagram of part of the assembly structure.

[0019] Figure 3 is a schematic diagram of the light passing hole adjusting body structure.

[0020] Figure 4 is a schematic diagram of the light passing hole size structure.

[0021] Figures 1 to 4 In the drawings, the various annotations are as follows: the pressing plate 1, the base 2, the adjusting seat 4, the adjusting pressing plate 3, the collimating device 6, the light passing hole adjusting body 5, the outer circular end of the pressing plate 1-1, the inner circular end of the base 2-1, the outer circular end of the base 2-2, the inner circular end of the adjusting seat 4-1, the fixed seat 5-1, the rotating seat 5-2, the stop piece 5-3, the adjusting blade 5-4, the light passing hole 5-5, the convex column 5-1-1, the unequal diameter groove 5-2-1, the rotating hole 5-4-1, the guide column 5-4-2. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] This invention provides a light attenuation device for water quality spectral detection, such as... Figure 1 As shown, the device includes a pressure plate 1, a base 2, an adjusting seat 4, an adjusting pressure plate 3, a collimation device 6, and a light aperture adjusting body 5. The pressure plate 1, the light aperture adjusting body 5, and the adjusting seat 4 are all mounted on the base 2, forming a light path. The specific structure is as follows: it includes: a base 2, a pressure plate 1, and an adjusting seat 4 connected end-to-end, with concentric cavities between them; it also includes: a light aperture adjusting body, installed inside the base 2; the light aperture adjusting body is connected to the adjusting seat 4.

[0024] The collimation device 6 includes a left collimating lens and a right collimating lens, which are respectively installed on the base 2 and the pressure plate 1; an adjustable light path is formed between the left collimating lens, the aperture adjustment body and the right collimating lens.

[0025] In a further embodiment, the base 2 has an inner circular end 2-1 inside; one side of the base 2 has an outer circular end 2-2, which communicates with the inner circular end 2-1; the outer circular end 2-2 is configured to mount the right collimator. One end face of the pressure plate 1 has an outer circular end 1-1 connected thereto, which is threadedly fitted to the base 2; the pressure plate 1 has an inner circular end inside, which is configured to fix the left collimator. The adjusting seat 4 has an inner circular end 4-1 inside; the inner circular end 4-1 is threadedly connected to the base 2.

[0026] In other words, the left collimator and the right collimator are threaded onto the pressure plate 1 and the base 2, respectively. The pressure plate 1 presses the fixing seat 5-1 of the aperture adjustment body into the inner end 2-1 of the base through its outer circular end 1-1, and is tightly connected to the base 2 by threads; the adjustment seat 4 is concentrically installed on the outer circular end 2-2 of the base through the inner circular end 4-1 of the adjustment seat, and is loosely pressed by threads.

[0027] In this embodiment, the concentricity of the installation of the outer circular end 1-1 of the pressure plate, the fixed seat 5-1 and the inner circular end 2-1 of the base is less than 0.1; the concentricity of the installation of the inner circular end 4-1 of the adjusting seat and the outer circular end 2-2 of the base is less than 0.1.

[0028] The regulatory bodies include:

[0029] The fixing seat 5-1 is pressed and installed inside the base 2; a light-transmitting hole 5-5 is opened at the center of the fixing seat 5-1, and a hollow structure of a predetermined length is provided on one side of it;

[0030] A plurality of convex columns 5-1-1 are equidistantly mounted on the fixed seat 5-1; an adjusting vane 5-4 is rotatably mounted on each convex column 5-1-1, and a guide column 5-4-2 is fixed on the adjusting vane 5-4;

[0031] A rotating seat 5-2 is concentrically mounted inside the fixed seat 5-1; a plurality of unequal-diameter grooves 5-2-1 are formed in the rotating seat 5-2, and the guide columns 5-4-2 are correspondingly located in the unequal-diameter grooves 5-2-1; a connecting piece is arranged at a specified position of the rotating seat 5-2, penetrates the hollow structure, and is connected with the adjusting seat 4 through the adjusting pressure plate 1.

[0032] As shown in Figure 3 , the rotating seat 2 is concentrically mounted inside the fixed seat 5-1, and a baffle 5-3 limits the axial freedom degree thereof; the rotating seat 5-2 can rotate concentrically relative to the fixed seat 5-1; the adjusting vane 5-4 is concentrically mounted on the convex column 5-1-1 of the fixed seat 5-1 through a rotating hole 5-4-1 thereof, and can rotate with the convex column 5-1-1; the adjusting vane 5-4 is tangentially mounted in the unequal-diameter groove 5-2-1 of the rotating seat 5-2 through the guide column 5-4-2, and can slide along the arc line thereof; the eight adjusting vanes 5-4 are correspondingly mounted with the guide columns 5-4-2 and the unequal-diameter grooves 5-2-1. Figure 4 As shown in , the light hole adjusting body 5 is put into the light hole 5-5 with a diameter of 10 mm to 0 mm by rotating the rotating seat 5-2 to the maximum position and the minimum position.

[0033] The specific working mode is as follows:

[0034] 1. After the attenuation device is assembled;

[0035] 2. The collimating mirror 6-1 is connected with an optical fiber, and then connected with a light source

[0036] 3. The collimating mirror 6-2 is connected with an optical fiber, and then connected with a light intensity detection device after a measuring cell

[0037] 4. The adjusting seat 4 is adjusted from the minimum position to the maximum position, and the light intensity is measured at the same time;

[0038] 5. The maximum position under the unexposed state of the light intensity is selected as the attenuation position;

[0039] 6. The compression stud of the adjusting seat 4 is tightened;

[0040] 7. The adjustment is completed.

Claims

1. A light attenuation device for water quality spectroscopic detection, characterized by, include: A base, a pressure plate, and an adjusting seat are connected end-to-end, with a concentric cavity between them; it also includes: A light aperture adjustment body is installed inside the base; the light aperture adjustment body is connected to the adjustment seat. The collimation device includes a left collimating lens and a right collimating lens, which are respectively mounted on the base and the pressure plate; an adjustable light path is formed between the left collimating lens, the aperture adjustment body and the right collimating lens.

2. The light attenuation device for water quality spectral detection according to claim 1, characterized in that, The base has an inner circular end; one side of the base has an outer circular end, which communicates with the inner circular end; the outer circular end is configured to mount the right collimator.

3. The light attenuation device for water quality spectral detection according to claim 1, characterized in that, One end face of the pressure plate is provided with an outer circular end connected thereto, and the outer circular end of the pressure plate is threaded to the base; the inside of the pressure plate is provided with an inner circular end of the pressure plate, and the inner circular end of the pressure plate is configured to fix the left collimating lens.

4. The light attenuation device for water quality spectral detection according to claim 1, wherein, The adjusting seat has an inner circular end; the inner circular end of the adjusting seat is connected to the base by a thread.

5. The light attenuation device for water quality spectroscopic detection according to claim 1, characterized in that, The regulating body includes: A fixing seat is pressed and installed inside the base; a light-transmitting hole is opened at the center of the fixing seat, and a hollow structure of a predetermined length is provided on one side of it; Several protruding pillars are installed at equal intervals on the fixed base; each protruding pillar is rotatably mounted with an adjusting blade, and a guide pillar is fixed on the adjusting blade; A rotating seat is concentrically installed inside the fixed seat; the rotating seat has several grooves of unequal diameter, and the guide posts are located in the grooves of unequal diameter in a corresponding manner; a connector is provided at a designated position on the rotating seat, and the connector passes through the hollow structure and is connected to the adjusting seat through the adjusting pressure plate.

6. The light attenuation device for water quality spectroscopic detection according to claim 5, wherein, The adjustment body further includes a baffle plate, which is used to press the rotating seat into the fixed seat to restrict its axial degree of freedom.

7. The light attenuation device for water quality spectroscopic detection according to claim 1, wherein, The main body for adjusting the light aperture can be adjusted to the maximum and minimum positions by moving the adjustment seat, and the diameter of the light path can be from 10mm to 0mm.

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