Portable spectrum observation instrument

Abstract

The utility model discloses a portable spectrum observation instrument, which relates to the technical field of spectrum observation instruments and comprises a base, a lifting mechanism, a mounting table and an observation instrument body, one end of the lifting mechanism is connected with the base, the other end of the lifting mechanism is connected with the mounting table, and the observation instrument body is connected onto the mounting table through a rotary table; the driving part is connected with a rotating rod of the lifting mechanism so as to drive the lifting mechanism to drive the mounting table to do lifting motion on the base; the height of the observation instrument body is adjusted by arranging the lifting mechanism between the base and the observation instrument body, so that lifting adjustment can be conveniently carried out according to the condition of an experimenter, and the observation instrument body can be descended and stored through the lifting mechanism, so that the observation instrument is convenient to carry; meanwhile, the rotary table with a pre-tightening function is arranged on the mounting table, so that horizontal multi-angle rotation of the observation instrument body is controlled, the horizontal angle of the observation instrument body is adjusted, and the applicability of the observation instrument body is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of spectroscopic observation technology, specifically a portable spectroscopic observation instrument. Background Technology

[0002] Detecting the spectral components of a light source is a common task in production or scientific research activities. Currently, in physics laboratories, the usual method for measuring the wavelength of light is to first use a grating to diffract the different wavelength components of the light to be measured into spectral lines in different directions, then use an angle measuring instrument such as a spectrometer to measure the angle, and finally substitute the measured angle value into the grating equation and calculate the wavelength value using trigonometric functions. Although the principle is simple, the spectrometer is relatively bulky, not easy to carry, and not convenient to adjust the height. Therefore, this application proposes a portable spectrometer. Utility Model Content

[0003] The purpose of this invention is to propose a portable spectrometer to solve the problems of traditional spectrometers being difficult to carry and have limited height adjustment.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a portable spectrometer, including a base, a lifting mechanism, a mounting platform, and an instrument body. One end of the lifting mechanism is connected to the base, and the other end is connected to the mounting platform. The instrument body is connected to the mounting platform via a turntable. It also includes a driving component connected to the rotating rod of the lifting mechanism to drive the lifting mechanism to move the mounting platform up and down on the base. A pad is provided on the lower surface of the base.

[0005] Preferably, the lifting mechanism further includes a cross lifting rod, a sliding plate, and a limiting plate. A base frame is provided inside the base, the limiting plate is fixed to one end of the base frame, the sliding plate is slidably disposed at the other end of the base frame, one end of the rotating rod is rotatably connected to the limiting plate, and the rotating rod is provided with external threads, which are threadedly connected to the sliding plate. One side of the lower end of the cross lifting rod is hinged to one end of the base frame, and the other side of the lower end of the cross lifting rod is hinged to the sliding plate. One side of the upper end of the cross lifting rod is hinged to one end of the mounting frame on the mounting platform, and the other side of the upper end of the cross lifting rod is slidably disposed within the mounting frame. The driving component is a handle or a drive handwheel.

[0006] Preferably, the turntable includes a rotating sleeve and a rotating shaft. The upper end of the rotating shaft is connected to the lower end of the observation instrument body. The rotating sleeve is mounted on a mounting platform, and the lower end of the rotating shaft is rotatably connected to the turntable. A pre-tightening component is provided on the turntable for limiting the rotation of the rotating shaft. The pre-tightening component is an elastic ball bearing, which is evenly distributed circumferentially on the rotating sleeve. The rotating shaft has grooves that engage with the elastic ball bearings.

[0007] Preferably, the turntable further includes a sliding sleeve, which is slidably connected to the mounting frame; one end of the sliding sleeve is provided with a locking bolt, which is threadedly connected to the side of the mounting frame.

[0008] Preferably, the observation instrument body includes a housing, with a front window at the front end for mounting a grating plate and a rear window at the rear end for mounting a single slit. A convex lens is disposed inside the housing, and a wavelength reading scale is disposed inside the housing at one end of the rear window.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. By setting a lifting mechanism between the base and the main body of the observation instrument, the height of the main body of the observation instrument can be adjusted to suit the experimenter's own situation. The lifting mechanism can also be used to lower and store the main body of the observation instrument for easy carrying. At the same time, by setting a mounting platform and a turntable with a pre-tightening function on the mounting platform, the horizontal rotation of the main body of the observation instrument can be controlled at multiple angles to adjust the horizontal angle of the main body of the observation instrument, effectively improving its applicability to various light sources.

[0011] 2. By setting a wavelength reading scale, the purpose of directly reading the spectral values ​​can be achieved, eliminating the application process of angle measuring instruments and the angle calculation process. This not only reduces the weight of the whole machine but also improves the speed of wavelength acquisition, making the spectral observation process a WYSIWYG process. This makes the device of this application more adaptable to the efficient and fast pace of modern experiments, saving manpower, time, and material consumption. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of a portable spectrometer according to the present invention;

[0014] Figure 2 for Figure 1 Enlarged diagram of section A in the middle;

[0015] Figure 3 This is a schematic diagram of the internal structure of the base of this utility model;

[0016] Figure 4 This is a bottom schematic diagram of a portable spectrometer according to the present invention;

[0017] Figure 5This is a schematic diagram of the mounting platform and the cross lifting rod of this utility model;

[0018] Figure 6 This is a schematic diagram of the mounting frame and drive components of this utility model;

[0019] Figure 7 This is a schematic diagram of the internal structure of the observation instrument body of this utility model.

[0020] In the diagram: 1-Base; 11-Base frame; 12-Box body; 121-Strip-shaped limiting hole; 2-Lifting mechanism; 21-Rotating rod; 22-Cross lifting rod; 23-Slide plate; 24-Limiting plate; 3-Mounting platform; 31-Mounting frame; 32-Sliding sleeve; 4-Observation instrument body; 41-Outer shell; 42-Front window; 43-Rear window; 44-Raster plate; 45-Single slit; 46-Convex lens; 47-Wavelength reading scale; 5-Turntable; 51-Rotating sleeve; 52-Rotating shaft; 6-Drive component; 7-Padded block; 8-Locking bolt. Detailed Implementation

[0021] To better understand the structure, functional features, and advantages of this utility model, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings:

[0022] Example:

[0023] like Figures 1 to 6 As shown, this utility model provides a portable spectrometer, including a base 1, a lifting mechanism 2, a mounting platform 3, and an instrument body 4. One end of the lifting mechanism 2 is connected to the base 1, and the other end of the lifting mechanism 2 is connected to the mounting platform 3. The instrument body 4 is connected to the mounting platform 3 via a turntable 5. It also includes a driving component 6, which is connected to the rotating rod 21 of the lifting mechanism 2 to drive the lifting mechanism 2 to move the mounting platform 3 up and down on the base 1, thereby controlling the up and down movement of the instrument body 4 on the base 1 to adjust its height and to fold it up for easy carrying.

[0024] See Figure 3 and Figure 4The lifting mechanism 2 of this application also includes a cross lifting rod 22, a sliding plate 23, and a limiting plate 24. A base frame 11 is provided inside the base 1. The limiting plate 24 is fixed to one end of the base frame 11. The sliding plate 23 is slidably disposed at the other end of the base frame 11. One end of the rotating rod 21 is rotatably connected to the limiting plate 24. The rotating rod 21 is provided with an external thread and is threadedly connected to the sliding plate 23 through the external thread. One side of the lower end of the cross lifting rod 22 is hinged to one end of the base frame 11, and the other side of the lower end of the cross lifting rod 22 is hinged to the sliding plate 23 so that the rotating rod 21 can rotate and move within the base 1. One side of the upper end of the cross lifting rod 22 is hinged to one end of the mounting frame 31 on the mounting platform 3, and the other side of the upper end of the cross lifting rod 22 is slidably disposed in the sliding grooves on both sides of the mounting frame 31 so that the upper side of the cross lifting rod 22 can slide on both sides of the mounting frame 31. The drive component 6 drives the rotating rod 21 to rotate, thereby causing the slide plate 23 to slide within the box 12 of the base 1. The slide plate 23 is limited by the strip-shaped limiting hole 121 on the box 12, so that the slide plate 23 drives one end of the cross lifting rod 22 to move during the sliding process, so that the other end of the cross lifting rod 22 slides on both sides within the mounting frame 31, thereby realizing the height adjustment of the observation instrument body 4.

[0025] See Figure 6 The driving component 6 in this application is a handle or a drive handwheel. The height of the observation instrument body 4 can be manually adjusted by setting a handle; it can also be set to a handwheel drive, with the handwheel connected to the rotating rod 21 via a coupling to achieve automatic adjustment of the height of the observation instrument body 4. Furthermore, a handle is provided on the upper side surface of the observation instrument body 4.

[0026] As another embodiment of this application, such as Figure 5 As shown, the turntable 5 of this application includes a rotating sleeve 51 and a rotating shaft 52. The upper end of the rotating shaft 52 is connected to the lower end of the observation instrument body 4. The rotating sleeve 51 is mounted on the mounting platform 3. The lower end of the rotating shaft 52 is rotatably connected to the turntable 5 so that the observation instrument body 4 can rotate horizontally at multiple angles on the mounting platform 3.

[0027] Specifically, the turntable 5 of this application is provided with a pre-tightening component (not shown) for limiting the rotation of the rotating shaft 52.

[0028] Specifically, the pre-tightening component of this application is an elastic ball bearing. The elastic ball bearings are evenly distributed on the rotating sleeve 51 in the circumferential direction. The rotating shaft 52 is provided with a groove that fits into the elastic ball bearings to achieve elastic limiting of the rotating shaft 52, so as to manually rotate the measuring instrument body to adjust its horizontal angle.

[0029] See Figure 4The base 1 of this application has a pad 7 on its lower surface; the pad 7 is a rubber pad. Furthermore, the pad 7 can also be threadedly connected to the base 1 by a screw to adjust the stability of the base 1 when it is placed on an uneven surface.

[0030] As another embodiment of this application, such as Figure 5 and Figure 6 As shown, the turntable 5 of this application also includes a sliding sleeve 32, which is slidably connected to the mounting frame 31; the rotating sleeve 51 is fixedly mounted on the sliding sleeve 32. A locking bolt 8 is provided at one end of the sliding sleeve 32, and the locking bolt 8 is threadedly connected to the side of the mounting frame 31. The sliding sleeve 32 facilitates the removal of the observation instrument body 4 from the mounting frame 31. Furthermore, the mounting frame 31 of this application has multiple threaded holes on both sides. After adjusting the position of the sliding sleeve 32 on the mounting frame 31 by sliding it, the sliding sleeve 32 is then fixed by connecting the locking bolt 8 to one of its threaded holes, thereby achieving the adjustment of the front and rear position of the observation instrument body 4.

[0031] As another embodiment of this application, such as Figure 7 As shown, the observation instrument body of this application includes a housing 41. A front window 42 for mounting a grating plate 44 is provided at the front end of the housing 41, and a rear window 43 for mounting a single slit 45 is provided at the rear end of the housing 41. A convex lens 46 is disposed inside the housing 41, and a wavelength reading scale 47 is disposed inside the housing 41 at one end of the rear window 43. The housing 41 of this application is made of plastic, and the front window 42 and rear window 43 are used to mount the grating plate 44 and the single slit 45.

[0032] In this embodiment:

[0033] Installation of single slit 45: Select two precision blades with parallel and opposite blade edges, 0.2 mm apart, and attach them to the end face window of the housing 41 on the side closest to the light source. If a frosted glass screen is selected, it can be attached to the blade plane.

[0034] Processing and installation of convex lens 46: Cut off two arc-shaped edges of the circular convex lens 46 in parallel, and paste one straight edge to the central area of ​​the outer shell 41. Before pasting, test to determine the pasting position that can produce a clear image.

[0035] Installation of lenticular sheet 44: Inside the front window 42 of the housing 41, lenticular sheet 44 is pasted with the hard, glossy glass facing outwards and the surface of the lenticular sheet 44 with holographic dark patterns facing inwards to prevent wear.

[0036] Installation of wavelength reading scale 47: The calibrated wavelength range is 0-800 nm, while the common visible light range is 400-700 nm. Considering the possibility of flipping the instrument for measurement, a reflection of the scale values ​​is designed on the upper row. At this time, the scale spacing is equal. The spacing of each area needs to be fine-tuned according to the actual measurement during the specific calibration.

[0037] The scale of the reading scale is calibrated and tested: the wavelength reading scale 47 is installed inside the housing 41 for observation. The reference light sources are a mercury lamp and a laser light source with known wavelengths. Based on the observed spectral line positions and the known wavelength values ​​to be read, the correction range for the local density of the scale is determined. The density of each area of ​​the scale in the computer is recalibrated. The scale is then reprinted to obtain a reading scale that can accurately read wavelength values. The scale is then attached and fixed to the cross section of the housing 41 where the single slit 45 is located.

[0038] Final test: The main body of the observation instrument 4 was pointed at various light sources for actual measurement, including mercury lamps, sodium lamps, LED lamps, fluorescent lamps, lasers and other light sources. The results were compared with known wavelength measurement results to confirm the authenticity, effectiveness and speed of the product's measurement function.

[0039] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A portable optical spectrum viewer, characterized by: The utility model provides a kind of observation instrument, including base (1), lifting mechanism (2), mounting table (3) and observer body (4), one end of the lifting mechanism (2) is connected with the base (1), the other end of the lifting mechanism (2) is connected with the mounting table (3), the observer body (4) is connected on the mounting table (3) by rotating platform (5);It further includes driving component (6), the driving component (6) is connected with the rotating lever (21) of the lifting mechanism (2), to drive the lifting mechanism (2) drive the mounting table (3) on the base (1) is carried out lifting movement; The lifting mechanism (2) further includes cross lifting lever (22), sliding plate (23) and limiting plate (24), the base (1) is provided with base frame (11) in, the limiting plate (24) is fixed to one end of the base frame (11), the sliding plate (23) is slidably arranged at the other end of the base frame (11), one end of the rotating lever (21) is rotatably connected with the limiting plate (24), the rotating lever (21) is provided with external thread, the rotating lever (21) is threadedly connected with the sliding plate (23) by the external thread;The lower end one side of the cross lifting lever (22) is hinged to one end of the base frame (11), and the lower end other side of the cross lifting lever (22) is hinged to the sliding plate (23);The upper end one side of the cross lifting lever (22) is hinged to one end of the mounting frame (31) on the mounting table (3), and the upper end other side of the cross lifting lever (22) is slidably arranged in the mounting frame (31); The observer body (4) includes shell (41), the front end of the shell (41) is provided with front window (42) for installing grating piece (44), and the rear end of the shell (41) is provided with rear window (43) for installing single slit (45); The shell (41) is provided with convex lens (46) in, and wavelength reading scale (47) is arranged at one end of the rear window (43) in the shell (41).

2. A portable optical spectrum viewer as claimed in claim 1, characterized in that: The driving component (6) is a handle or a driving hand wheel.

3. The portable optical spectrum viewer of claim 1, wherein: The rotating platform (5) includes rotating sleeve (51) and rotating shaft (52), the upper end of the rotating shaft (52) is connected with the lower end of the observer body (4), the rotating sleeve (51) is arranged on the mounting table (3), and the lower end of the rotating shaft (52) is rotatably connected with the rotating platform (5).

4. A portable optical spectrum viewer as claimed in claim 3, characterized in that The rotating platform (5) is provided with pre-tightening component for rotating limiting of the rotating shaft (52).

5. A portable optical spectrum viewer as claimed in claim 4, characterized in that The pre-tightening component is elastic ball, the elastic ball is evenly distributed on the rotating sleeve (51) in circumferential direction, and the rotating shaft (52) is provided with recess for embedding the elastic ball.

6. The portable optical spectrum viewer of claim 1, wherein, The lower bottom surface of the base (1) is provided with cushion block (7).

7. A portable optical spectrum viewer as in claim 2, wherein, The rotating platform (5) further includes sliding sleeve (32), and the sliding sleeve (32) is slidably connected with the mounting frame (31);One end of the sliding sleeve (32) is provided with locking bolt (8), and the locking bolt (8) is threadedly connected with the side surface of the mounting frame (31).

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