CN112729545A - Miniature spectrometer based on variable-pitch grating - Google Patents
Miniature spectrometer based on variable-pitch grating Download PDFInfo
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- CN112729545A CN112729545A CN202011563697.5A CN202011563697A CN112729545A CN 112729545 A CN112729545 A CN 112729545A CN 202011563697 A CN202011563697 A CN 202011563697A CN 112729545 A CN112729545 A CN 112729545A
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- 238000001514 detection method Methods 0.000 abstract description 12
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- G—PHYSICS
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
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- G—PHYSICS
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
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Abstract
The invention belongs to the technical field of micro spectrometer production, and particularly relates to a micro spectrometer based on a variable-pitch grating, which comprises a spectrometer body; a protective shell sleeve is sleeved outside the spectrometer body; the rear end of the protective shell sleeve is provided with an opening; the rear end of the spectrometer body is provided with a laser lamp; a circular through groove is formed in the bottom of the protective shell; a control button is arranged on the spectrometer body opposite to the round through groove; according to the invention, the clamping rod and the L-shaped rod piece are arranged, so that the spectrometer body can be detachably mounted on the mobile phone, the detection can be conveniently carried out through the spectrometer body, the detection result can be checked through the mobile phone, the conclusion whether a sample is qualified can be timely obtained, and the operation is more smooth; simultaneously because install the spectrum appearance body on the cell-phone, do not need to hold the cell-phone on one hand, hold the spectrum appearance body on one hand, it is more convenient to carry, and can prevent that the spectrum appearance body from following the landing in hand.
Description
Technical Field
The invention belongs to the technical field of micro spectrometers, and particularly relates to a micro spectrometer based on a variable-pitch grating.
Background
The spectrometer is a scientific instrument which decomposes light with complex components into spectral lines and can measure light rays reflected by the surface of an object; it consists of an entrance slit, a dispersion system, an imaging system and one or more exit slits. The electromagnetic radiation from the radiation source is separated by a dispersive element into the desired wavelength or wavelength region and intensity measurements are taken at selected wavelengths (or scanned over a band of wavelengths).
The micro spectrometer is one of spectrometers, adopts a linear array CCD detector, and has high quantum efficiency; programmable gain amplification and high-speed 16-bit AD conversion, and has a large dynamic range; the coated slit and the sealing ring are pressed and packaged, the sealing performance is good, the stray light is small, a zone bit technology and a high-speed control technology are adopted, and the coating can be widely applied to environment detection, industrial production, food, medicine, agriculture, land and mine, various analysis instrument OEM accessories and the like; the CCD array detector technology collects the light split by the grating on the detector at the same time and instantly without moving the grating, so that the sample spectrum is fast to be collected and output in real time through a computer, and the micro spectrometer has many advantages, such as: the method has the advantages of high speed, low price, small volume, light weight and full spectrum acquisition, can be separated from a sample chamber for measurement through optical fiber conduction, and is suitable for online real-time detection.
Most of micro spectrometers on the market at present are simple rectangular-like block structures, a protective shell is arranged outside the spectrometers, the micro spectrometers and a mobile phone are mutually associated, results are sent to the mobile phone in real time, when the micro spectrometers are used, only a laser lamp of the spectrometers is required to be aligned with a sample to be detected, then a control button is started, and obtained data, a map and the like are stored on the mobile phone; because miniature spectrum appearance is the quick detection that is used for a large amount of samples on scene mostly, and need in time look over the result after having detected, this just needs the tester to hold the spectrum appearance with one hand and detects, looks over the cell-phone with one hand and look over the result so that in time handle unqualified sample, obviously so very inconvenient, not only cause the spectrum appearance to follow the slippage in the hand easily, and cause the spectrum appearance to lose easily, it is very inconvenient to operate simultaneously.
To this end, the present invention proposes a micro spectrometer based on a variable pitch grating to solve the above problems.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problems that a tester holds a spectrometer with one hand to detect, looks over a mobile phone with the other hand to check the result inconveniently, and the spectrometer easily slips from the hand and is easy to lose, the invention provides a micro spectrometer based on a variable-pitch grating.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a micro spectrometer based on a variable-pitch grating, which comprises a spectrometer body; a protective shell sleeve is sleeved outside the spectrometer body; the rear end of the protective shell sleeve is provided with an opening; the rear end of the spectrometer body is provided with a laser lamp; a circular through groove is formed in the bottom of the protective shell; a control button is arranged on the spectrometer body opposite to the round through groove; the front end of the protective shell sleeve is provided with mounting grooves at positions close to the two ends; a movable cavity communicated with the mounting groove is arranged in the front end of the protective shell sleeve; a clamping rod is movably hinged inside the mounting groove through a pin shaft; the inner side end of the clamping rod is inserted into the movable chamber; a cylindrical cavity is formed in the inner part of the outer side end of the clamping rod; an L-shaped rod piece is movably inserted in the columnar cavity; the inner side end of the L-shaped rod piece is fixedly connected with a piston plate in the columnar cavity; the piston plate is mutually connected with the inner wall of the columnar cavity in a sliding manner; the piston plate is fixedly connected with the bottom of the columnar cavity through a spring; the outer side end of the L-shaped rod piece extends out of the edge of the outer side end of the clamping rod; the end part of the L-shaped rod piece is designed into a smooth curved surface structure; the outer side wall of the protective shell is provided with a rectangular slot; the rectangular slot is communicated with the interior of the movable chamber; a rotating disc is movably arranged in the rectangular slot through a fixing column; the edge of the rotating disc is provided with anti-skid grains; the fixing column is positioned at the eccentric position of the rotating disc and is arranged close to the bottom end of the clamping rod; the rotating disc is positioned on the outer side of the clamping rod; the inner side surface of the inner side end of the clamping rod is fixedly connected with one end of the arc-shaped air bag, and the other end of the arc-shaped air bag is fixedly connected with the inner wall of the movable cavity; the interior of the arc-shaped air bag is communicated with the interior of the columnar cavity through an air flow channel in the clamping rod; the bottom of the movable cavity is designed into a smooth curved surface which is adaptive to the motion trail of the inner side end of the clamping rod; the rotation of the rotating disc drives the clamping rod to rotate and extrude the arc-shaped air bag; the front end of the protective shell is fixedly provided with a plurality of groups of rubber suckers;
when the mobile phone spectrometer is in work, the spectrometer body can be detachably mounted on the mobile phone, so that the detection can be conveniently carried out through the spectrometer body while the detection result is checked through the mobile phone, the conclusion whether a sample is qualified can be timely obtained, and the operation is more smooth; meanwhile, the spectrometer body is arranged on the mobile phone, so that the mobile phone does not need to be held by one hand, and the spectrometer body is held by the other hand, so that the spectrometer is more convenient to carry and can be prevented from sliding off the spectrometer body;
in actual operation, when a protective shell sleeve positioned outside the spectrometer body needs to be installed on a mobile phone, the rotating disc can be rotated firstly, because the fixing column for installing the rotating disc is positioned at the eccentric position of the rotating disc, and then when the rotating disc is rotated towards the inner side of the rectangular groove, the rotating disc can gradually extrude the inner side ends of the clamping rods, so that the inner side ends of the clamping rods approach towards the inner side direction of the protective shell sleeve, and the outer side ends of the clamping rods deflect towards the outer side direction of the protective shell sleeve, namely the outer side ends of the two groups of clamping rods are separated from each other, and when the inner side ends of the clamping rods rotate towards the inner side direction of the protective shell sleeve, the inner side ends of the clamping rods can extrude an arc-shaped air bag positioned inside the movable cavity, air in the arc-shaped air bag can enter the cylindrical cavity through an air flow channel in the clamping rods, so as to push the piston plate towards the outer end opening direction of the cylindrical cavity, make L shape member stretch out the distance grow of clamping lever, thereby be convenient for put into the cell-phone between two sets of clamping lever more, after putting into the cell-phone between two sets of clamping lever, adsorb the cell-phone on the rubber suction cup of protective housing cover front end, then rotate the rolling disc once more and make its reply original position, clamping lever also reconversion this moment, clamping lever's bottom no longer extrudes the arc gasbag, the arc gasbag will extract the inside gas of column cavity through airflow channel, make the inside piston plate area of column cavity L shape member to the direction removal that is close to the protective housing cover, and then the tip of L shape member can compress tightly the front end at the protective housing cover with the cell-phone, realize the installation of protective housing cover, and is convenient to install and simple in structure.
Preferably, the bottom of the protective shell is positioned below the circular through groove, and a first hinge rod is arranged below the circular through groove; the middle part of the first hinge rod is movably hinged on a second vertical mounting rod through a pin shaft, and the second vertical mounting rod is fixedly mounted at the bottom of the protective shell sleeve; a pressing block is fixedly arranged at the position, corresponding to the circular through groove, of the upper surface of the first hinge rod; one end of the first hinge rod, which is far away from the circular through groove, is fixedly connected with one end of the pull rope, and the other end of the pull rope bypasses the bottom edge of the roller and is fixedly connected with the rear side end of the second hinge rod; the second hinge rod is movably hinged on the outer side wall of the first vertical mounting rod through a torsion spring; the first vertical mounting rod is fixedly mounted at the bottom of the protective shell sleeve; the roller is movably mounted on the rear side wall of the first vertical mounting rod; the rear side end of the roller is fixedly connected with the circular baffle; when the torsion spring movably connected with the second hinge rod is in a natural state, the rear side end of the second hinge rod inclines downwards; the first hinge rod and the second hinge rod are arranged vertically; when the spectrometer body is operated, in order to conveniently operate a control button at the bottom of the spectrometer body, the second hinge rod and the first hinge rod are arranged, when the control button is required to be pressed to open the spectrometer body, the front end of the second hinge rod can be pressed downwards, the rear end of the second hinge rod can be lifted upwards to pull a pull rope fixedly connected with the second hinge rod, the other end of the pull rope can pull the end, far away from the circular through groove, of the first hinge rod downwards, so that the end, close to the circular through groove, of the first hinge rod is lifted upwards, the pressing block at the end part of the first hinge rod can extrude the control button positioned in the circular through groove to open the spectrometer body, and when the spectrometer body is required to be closed, the operation is repeated; according to the invention, when the spectrometer body is opened or closed, a hand does not need to extend to a position far away from a mobile phone for operation, the operation is more convenient, and the opening of the spectrometer body by shifting the second hinge rod is more labor-saving than the pressing of a control button.
Preferably, the second hinged rod is a telescopic rod, the front end of the second hinged rod can be stretched, and the front end of the second hinged rod is fixedly connected with one end of the bending rod; the bending rod is an arc-shaped rod with two upward bent ends; the during operation, because the second hinge bar is the telescopic link, and the front end of second hinge bar can stretch, and then make the arm of force of second hinge bar increase, it is more laborsaving when pressing down the second hinge bar, simultaneously because crooked pole is the crooked arc pole up in both ends, more be convenient for the finger stir down crooked pole with being convenient for to the operation convenience more of second hinge bar.
Preferably, the bottom of the front end of the protective shell sleeve is provided with an elastic push plate through a spring; the top of the rear side end of the protective shell sleeve is provided with a slot; an inserting plate used for blocking the spectrometer body is movably inserted into the slot; the upper end and the lower end of the inserting plate are both fixedly provided with a barrier strip; during operation, inlay the inside of establishing at the protective housing with the spectrum appearance body, and the bottom of protective housing front end is equipped with the elasticity push pedal through the spring, the rear end of spectrum appearance body blocks through the picture peg simultaneously, picture peg and elasticity push pedal compress tightly the spectrum appearance body in the inside of protective housing, make the installation of spectrum appearance body in protective housing inside more firm, simultaneously when needs take out the spectrum appearance body and maintain or when adjusting, can directly upwards mention the picture peg, make the bottom of picture peg break away from the trailing flank of spectrum appearance body, the elasticity push pedal that links firmly with the spring this moment will promote the spectrum appearance body to the rear end opening part of protective housing, thereby make the tip of spectrum appearance body stretch out the port of protective housing, be convenient for take out the spectrum appearance body from the inside of protective housing.
Preferably, the inner wall of the protective shell sleeve is fixedly provided with a rubber sleeve; air cavities are uniformly formed in the inner wall of the rubber sleeve; the air cavities are arranged in the rubber sleeve in a staggered manner; when the spectrometer shell is in work, the elasticity of the rubber sleeve enables the spectrometer body to be firmly embedded in the protective shell sleeve, and meanwhile, the elastic compression of the rubber sleeve on the spectrometer body cannot cause rigid damage to the spectrometer body; because the inside of the rubber sleeve is even and provided with the air cavities in a staggered manner, a series of small spaces capable of being elastically extruded and expanded exist in the air cavities, the elasticity of the rubber sleeve is better, meanwhile, because the heat transfer efficiency of the air positioned in the air cavities is low, the paths for transferring external heat to the spectrometer body through the rubber sleeve are increased by the staggered air cavities, the heat transfer efficiency is reduced, a better heat preservation and insulation effect can be achieved, the spectrometer body is prevented from being heated up too fast when the external temperature is too high, and the spectrometer body can be prevented from being attacked by cold and reduced in working performance when the external temperature is lower; meanwhile, the rubber sleeve with the air cavity can play a good role in damping, and even if the protective shell sleeve and the spectrometer body fall on the ground, the spectrometer body cannot be damaged too much.
Preferably, the inner wall of the rubber sleeve is provided with balls which are uniformly arranged on the inner wall of the protective shell sleeve; during operation, the ball converts the face contact between rubber sleeve and the spectrum appearance body into the point contact between ball and the spectrum appearance body, and then has reduced the frictional resistance between rubber sleeve and the spectrum appearance body greatly for more smoothness, laborsaving during the inside of spectrum appearance body embedding protective housing cover.
The invention has the following beneficial effects:
1. according to the micro spectrometer based on the variable-pitch grating, the clamping rod and the L-shaped rod piece are arranged, so that the spectrometer body can be detachably mounted on the mobile phone, detection can be conveniently carried out through the spectrometer body, the detection result can be checked through the mobile phone, the conclusion whether a sample is qualified can be timely obtained, and the operation is more smooth; simultaneously because install the spectrum appearance body on the cell-phone, do not need to hold the cell-phone on one hand, hold the spectrum appearance body on one hand, it is more convenient to carry, and can prevent that the spectrum appearance body from following the landing in hand.
2. According to the micro spectrometer based on the variable-pitch grating, the first hinge rod and the second hinge rod are arranged, so that a user does not need to stretch a hand to a position far away from a mobile phone to operate when opening or closing the spectrometer body, the operation is more convenient, and the labor is saved when the spectrometer body is opened by shifting the second hinge rod compared with when a control button is pressed.
3. According to the micro spectrometer based on the variable-pitch grating, the rubber sleeve and the air cavity are arranged, so that the rubber sleeve can elastically compress the spectrometer body and cannot cause rigid damage to the spectrometer body; because the inside of rubber sleeve is even, the dislocation is equipped with the air cavity, and then makes the elasticity of rubber sleeve better, simultaneously because the heat transfer efficiency who is located the inside air of air cavity is low, the air cavity of dislocation arrangement has then increased the route that external heat transmitted to the spectrum appearance body through the rubber sleeve, has reduced heat transfer efficiency, and then can play better thermal-insulated effect of heat preservation.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic view of a first perspective structure of the present invention;
FIG. 2 is a schematic diagram of a second perspective structure of the present invention;
FIG. 3 is a schematic view of the internal structure of the protective sheath;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
in the figure: spectrometer body 1, protective housing 2, rectangle fluting 3, rolling disc 4, first articulated rod 5, circular baffle 6, second articulated rod 7, cylinder 8, crooked pole 9, first vertical installation pole 10, slot 11, picture peg 12, rubber suction cup 13, mounting groove 14, pinch bar 15, L shape member 16, second vertical installation pole 17, press block 18, circular logical groove 19, blend stop 20, laser lamp 21, rubber sleeve 22, air cavity 23, fixed column 24, activity cavity 25, arc gasbag 26, column cavity 27, piston plate 28, air flow channel 29, ball 30, elasticity push pedal 31.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 4, the micro spectrometer based on the variable-pitch grating according to the present invention includes a spectrometer body 1; a protective shell sleeve 2 is sleeved outside the spectrometer body 1; the rear end of the protective shell 2 is provided with an opening; the rear end of the spectrometer body 1 is provided with a laser lamp 21; the bottom of the protective shell 2 is provided with a circular through groove 19; a control button is arranged on the spectrometer body 1 opposite to the round through groove 19; the front end of the protective shell 2 is provided with a mounting groove 14 near the two ends; a movable cavity 25 communicated with the mounting groove 14 is arranged in the front end of the protective shell 2; a clamping rod 15 is movably hinged inside the mounting groove 14 through a pin shaft; the inner end of the clamping rod 15 is inserted in the movable chamber 25; a cylindrical cavity 27 is formed in the outer side end of the clamping rod 15; an L-shaped rod piece 16 is movably inserted into the columnar cavity 27; the inner end of the L-shaped rod piece 16 is fixedly connected with a piston plate 28 in the cylindrical cavity 27; the piston plate 28 is connected with the inner wall of the columnar cavity 27 in a sliding mode; the piston plate 28 is fixedly connected with the bottom of the cylindrical cavity 27 through a spring; the outer side end of the L-shaped rod piece 16 extends out of the outer side end edge of the clamping rod 15; the end of the L-shaped rod piece 16 is designed into a smooth curved surface structure; the outer side wall of the protective shell 2 is provided with a rectangular slot 3; the rectangular open slot 3 and the movable chamber 25 are communicated with each other; a rotating disc 4 is movably arranged in the rectangular open groove 3 through a fixing column 24; the edge of the rotating disc 4 is provided with anti-skid lines; the fixed column 24 is positioned at the eccentric position of the rotating disc 4 and is arranged close to the bottom end of the clamping rod 15; the rotating disc 4 is positioned outside the clamping rod 15; the inner side surface of the inner side end of the clamping rod 15 is fixedly connected with one end of an arc-shaped air bag 26, and the other end of the arc-shaped air bag 26 is fixedly connected with the inner wall of the movable chamber 25; the interior of the arc-shaped air bag 26 is communicated with the interior of the columnar cavity 27 through an air flow channel 29 in the clamping rod 15; the bottom of the movable cavity 25 is designed into a smooth curved surface which is adaptive to the motion trail of the inner side end of the clamping rod 15; the rotation of the rotating disc 4 drives the clamping rod 15 to rotate and extrude the arc-shaped air bag 26; the front end of the protective shell 2 is fixedly provided with a plurality of groups of rubber suckers 13;
when the spectrometer is in work, the spectrometer body 1 can be detachably mounted on the mobile phone, so that the detection can be conveniently carried out through the spectrometer body 1, the detection result can be checked through the mobile phone, the conclusion whether a sample is qualified can be timely obtained, and the operation is more smooth; meanwhile, the spectrometer body 1 is arranged on the mobile phone, so that the mobile phone does not need to be held by one hand, and the spectrometer body 1 is held by the other hand, so that the spectrometer is more convenient to carry and can be prevented from sliding off the spectrometer body 1;
in actual operation, when the protective casing 2 located outside the spectrometer body 1 needs to be installed on a mobile phone, the rotating disc 4 may be rotated first, because the fixing column 24 for installing the rotating disc 4 is located at the eccentric position of the rotating disc 4, and further when the rotating disc 4 is rotated towards the inner side of the rectangular slot 3, the rotating disc 4 will gradually press the inner ends of the clamping rods 15, so that the inner ends of the clamping rods 15 approach towards the inner side of the protective casing 2, and the outer ends of the clamping rods 15 will deflect towards the outer side of the protective casing 2, that is, the outer ends of the two groups of clamping rods 15 are separated from each other, and when the inner ends of the clamping rods 15 rotate towards the inner side of the protective casing 2, the inner ends of the clamping rods 15 will press the arc-shaped air bags 26 located inside the movable chamber 25, and air inside the arc-shaped air bags 26 will enter the cylindrical cavity 27 through the air flow passage 29 inside the clamping rods 15, thereby pushing the piston plate 28 towards the outer port of the cylindrical cavity 27, so that the distance that the L-shaped rod piece 16 extends out of the clamping rod 15 becomes larger, thereby being more convenient for placing the mobile phone between the two groups of clamping rods 15, absorbing the mobile phone on the rubber suction cup 13 at the front end of the protective shell 2 after placing the mobile phone between the two groups of clamping rods 15, then the rotating disc 4 is rotated again to return to the original position, at this time, the clamping rod 15 is restored, the bottom end of the clamping rod 15 does not press the arc-shaped air bag 26 any more, the arc-shaped air bag 26 will extract the air inside the cylindrical cavity 27 through the air flow passage 29, so that the piston plate 28 inside the cylindrical cavity 27 carries the L-shaped rod 16 towards the protective casing 2, and then the tip of L-shaped member 16 can compress tightly the cell-phone in the front end of protective housing 2, realizes the installation of protective housing 2, simple to operate, simple structure.
As an embodiment of the present invention, the bottom of the protective shell 2 is located below the circular through groove 19, and the first hinge rod 5 is located below the circular through groove 19; the middle part of the first hinge rod 5 is movably hinged on a second vertical mounting rod 17 through a pin shaft, and the second vertical mounting rod 17 is fixedly mounted at the bottom of the protective shell 2; a pressing block 18 is fixedly arranged at the position, corresponding to the circular through groove 19, of the upper surface of the first hinged rod 5; one end of the first hinge rod 5, which is far away from the circular through groove 19, is fixedly connected with one end of a pull rope, and the other end of the pull rope bypasses the bottom edge of the roller 8 and is fixedly connected with the rear side end of the second hinge rod 7; the second hinge rod 7 is movably hinged on the outer side wall of the first vertical mounting rod 10 through a torsion spring; the first vertical mounting rod 10 is fixedly mounted at the bottom of the protective shell 2; the roller 8 is movably arranged on the rear side wall of the first vertical mounting rod 10; the rear side end of the roller 8 is fixedly connected with the circular baffle 6; when the torsion spring movably connected with the second hinge rod 7 is in a natural state, the rear side end of the second hinge rod 7 inclines downwards; the first hinge rod 5 and the second hinge rod 7 are arranged perpendicular to each other; when the spectrometer body 1 is operated, in order to conveniently operate a control button at the bottom of the spectrometer body 1, the second hinge rod 7 and the first hinge rod 5 are arranged, when the control button is required to be pressed to open the spectrometer body 1, the front end of the second hinge rod 7 can be pressed downwards, the rear end of the second hinge rod 7 can be lifted upwards to pull a pull rope fixedly connected with the second hinge rod, the other end of the pull rope can pull the end, far away from the circular through groove 19, of the first hinge rod 5 downwards, so that the end, close to the circular through groove 19, of the first hinge rod 5 is lifted upwards, the pressing block 18 at the end of the first hinge rod 5 can press the control button positioned in the circular through groove 19 to open the spectrometer body 1, and when the spectrometer body 1 is required to be closed, the operation can be repeated; according to the invention, when the spectrometer body 1 is opened or closed, a hand does not need to be extended to a position far away from a mobile phone for operation, the operation is more convenient, and the opening of the spectrometer body 1 by shifting the second hinge rod 7 is more labor-saving than the pressing of a control button.
As an embodiment of the present invention, the second hinge rod 7 is a telescopic rod, the front end of the second hinge rod 7 is stretchable, and the front end of the second hinge rod 7 is fixedly connected to one end of the bending rod 9; the bending rod 9 is an arc-shaped rod with two upward bent ends; during operation, because second articulated arm 7 is the telescopic link, and the front end of second articulated arm 7 can stretch, and then makes the arm of force of second articulated arm 7 increase, it is more laborsaving when pressing down second articulated arm 7, simultaneously because crooked pole 9 is the crooked arc pole up in both ends, be convenient for more the finger stir crooked pole 9 downwards for more convenient to the operation of second articulated arm 7.
As an embodiment of the present invention, the bottom of the front end of the protective casing 2 is provided with an elastic push plate 31 through a spring; the top of the rear side end of the protective shell 2 is provided with a slot 11; an inserting plate 12 for blocking the spectrometer body 1 is movably inserted into the slot 11; the upper end and the lower end of the inserting plate 12 are both fixedly provided with a barrier strip 20; when in work, the spectrometer body 1 is embedded in the protective shell 2, the bottom of the front end of the protective shell 2 is provided with an elastic push plate 31 through a spring, meanwhile, the rear end of the spectrometer body 1 is blocked by the inserting plate 12, the inserting plate 12 and the elastic push plate 31 tightly press the spectrometer body 1 inside the protective shell 2, so that the spectrometer body 1 is more firmly mounted inside the protective shell 2, meanwhile, when the spectrometer body 1 needs to be taken out for maintenance or adjustment, the inserting plate 12 can be directly lifted upwards, so that the bottom end of the inserting plate 12 is separated from the rear side surface of the spectrometer body 1, the elastic push plate 31 fixedly connected with the spring pushes the spectrometer body 1 to the opening at the rear end of the protective shell 2, so that the end of the spectrometer body 1 extends out of the port of the protective casing 2, facilitating the extraction of the spectrometer body 1 from the interior of the protective casing 2.
As an embodiment of the present invention, a rubber sleeve 22 is fixedly disposed on the inner wall of the protective casing 2; air cavities 23 are uniformly arranged on the inner wall of the rubber sleeve 22; the air cavities 23 are arranged in a staggered manner in the rubber sleeve 22; when the spectrometer shell 2 works, the elasticity of the rubber sleeve 22 enables the spectrometer body 1 to be firmly embedded in the protective shell 2, and meanwhile, the rubber sleeve 22 elastically compresses the spectrometer body 1 so as not to cause rigid damage to the spectrometer body 1; because the inside of the rubber sleeve 22 is even and the air cavity 23 is arranged in a staggered manner, a series of small spaces capable of being elastically extruded and expanded exist inside the air cavity 23, the elasticity of the rubber sleeve 22 is better, meanwhile, because the heat transfer efficiency of the air positioned inside the air cavity 23 is low, the path for transferring the external heat to the spectrometer body 1 through the rubber sleeve 22 is increased by the staggered air cavity 23, the heat transfer efficiency is reduced, a better heat preservation and insulation effect can be achieved, the spectrometer body 1 is prevented from being heated up too fast when the external temperature is too high, and the spectrometer body 1 is prevented from being attacked by cold and the working performance is reduced when the external temperature is lower; meanwhile, the rubber sleeve 22 with the air cavity 23 can play a good role in shock absorption, and even if the protective shell 2 and the spectrometer body 1 fall on the ground, the spectrometer body 1 cannot be damaged too much.
In one embodiment of the present invention, the inner wall of the rubber sleeve 22 is provided with balls 30, and the balls 30 are uniformly arranged on the inner wall of the protective shell 2; during operation, ball 30 converts the face contact between rubber sleeve 22 and the spectrum appearance body 1 into the point contact between ball 30 and the spectrum appearance body 1, and then has reduced the frictional resistance between rubber sleeve 22 and the spectrum appearance body 1 greatly for more smoothness, laborsaving during the inside of spectrum appearance body 1 embedding protective housing 2.
The specific working process of the invention is as follows:
when the spectrometer is in work, the spectrometer body 1 can be detachably mounted on the mobile phone, so that the detection can be conveniently carried out through the spectrometer body 1, the detection result can be checked through the mobile phone, the conclusion whether a sample is qualified can be timely obtained, and the operation is more smooth; meanwhile, the spectrometer body 1 is arranged on the mobile phone, so that the mobile phone does not need to be held by one hand, and the spectrometer body 1 is held by the other hand, so that the spectrometer is more convenient to carry and can be prevented from sliding off the spectrometer body 1;
in actual operation, when the protective casing 2 located outside the spectrometer body 1 needs to be installed on a mobile phone, the rotating disc 4 may be rotated first, because the fixing column 24 for installing the rotating disc 4 is located at the eccentric position of the rotating disc 4, and further when the rotating disc 4 is rotated towards the inner side of the rectangular slot 3, the rotating disc 4 will gradually press the inner ends of the clamping rods 15, so that the inner ends of the clamping rods 15 approach towards the inner side of the protective casing 2, and the outer ends of the clamping rods 15 will deflect towards the outer side of the protective casing 2, that is, the outer ends of the two groups of clamping rods 15 are separated from each other, and when the inner ends of the clamping rods 15 rotate towards the inner side of the protective casing 2, the inner ends of the clamping rods 15 will press the arc-shaped air bags 26 located inside the movable chamber 25, and air inside the arc-shaped air bags 26 will enter the cylindrical cavity 27 through the air flow passage 29 inside the clamping rods 15, thereby pushing the piston plate 28 towards the outer port of the cylindrical cavity 27, so that the distance that the L-shaped rod piece 16 extends out of the clamping rod 15 becomes larger, thereby being more convenient for placing the mobile phone between the two groups of clamping rods 15, absorbing the mobile phone on the rubber suction cup 13 at the front end of the protective shell 2 after placing the mobile phone between the two groups of clamping rods 15, then the rotating disc 4 is rotated again to return to the original position, at this time, the clamping rod 15 is restored, the bottom end of the clamping rod 15 does not press the arc-shaped air bag 26 any more, the arc-shaped air bag 26 will extract the air inside the cylindrical cavity 27 through the air flow passage 29, so that the piston plate 28 inside the cylindrical cavity 27 carries the L-shaped rod 16 towards the protective casing 2, and then the tip of L-shaped member 16 can compress tightly the cell-phone in the front end of protective housing 2, realizes the installation of protective housing 2, simple to operate, simple structure.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A miniature spectrometer based on variable-pitch grating is characterized in that: comprises a spectrometer body (1); a protective shell sleeve (2) is sleeved outside the spectrometer body (1); the rear end of the protective shell sleeve (2) is provided with an opening; the rear end of the spectrometer body (1) is provided with a laser lamp (21); a circular through groove (19) is formed in the bottom of the protective shell (2); a control button is arranged at the position, opposite to the circular through groove (19), on the spectrometer body (1); the front end of the protective shell sleeve (2) is provided with mounting grooves (14) at positions close to the two ends; a movable cavity (25) communicated with the mounting groove (14) is arranged in the front end of the protective shell sleeve (2); a clamping rod (15) is movably hinged inside the mounting groove (14) through a pin shaft; the inner side end of the clamping rod (15) is inserted into the movable chamber (25); a cylindrical cavity (27) is formed in the outer side end of the clamping rod (15); an L-shaped rod piece (16) is movably inserted into the columnar cavity (27); the inner side end of the L-shaped rod piece (16) is fixedly connected with a piston plate (28) in the cylindrical cavity (27); the piston plate (28) is mutually connected with the inner wall of the columnar cavity (27) in a sliding way; the piston plate (28) is fixedly connected with the bottom of the columnar cavity (27) through a spring; the outer side end of the L-shaped rod piece (16) extends out of the edge of the outer side end of the clamping rod (15); the end part of the L-shaped rod piece (16) is designed into a smooth curved surface structure; the outer side wall of the protective shell sleeve (2) is provided with a rectangular slot (3); the rectangular open slot (3) is communicated with the interior of the movable chamber (25); a rotating disc (4) is movably arranged in the rectangular open groove (3) through a fixed column (24); the edge of the rotating disc (4) is provided with anti-skid lines; the fixing column (24) is positioned at the eccentric position of the rotating disc (4) and is arranged close to the bottom end of the clamping rod (15); the rotating disc (4) is positioned on the outer side of the clamping rod (15); the inner side surface of the inner side end of the clamping rod (15) is fixedly connected with one end of the arc-shaped air bag (26), and the other end of the arc-shaped air bag (26) is fixedly connected with the inner wall of the movable chamber (25); the interior of the arc-shaped air bag (26) is communicated with the interior of the columnar cavity (27) through an air flow channel (29) in the clamping rod (15); the bottom of the movable cavity (25) is designed into a smooth curved surface which is adaptive to the motion track of the inner side end of the clamping rod (15); the rotating disc (4) rotates to drive the clamping rod (15) to rotate and extrude the arc-shaped air bag (26); the front end of the protective shell (2) is fixedly provided with a plurality of groups of rubber suckers (13).
2. The micro spectrometer based on the variable-pitch grating as claimed in claim 1, wherein: the bottom of the protective shell sleeve (2) is positioned below the circular through groove (19) and is provided with a first hinge rod (5); the middle part of the first hinge rod (5) is movably hinged on a second vertical mounting rod (17) through a pin shaft, and the second vertical mounting rod (17) is fixedly mounted at the bottom of the protective shell sleeve (2); a pressing block (18) is fixedly arranged at the position, corresponding to the circular through groove (19), of the upper surface of the first hinged rod (5); one end of the first hinge rod (5) far away from the circular through groove (19) is fixedly connected with one end of a pull rope, and the other end of the pull rope bypasses the bottom edge of the roller (8) and is fixedly connected with the rear side end of the second hinge rod (7); the second hinge rod (7) is movably hinged on the outer side wall of the first vertical mounting rod (10) through a torsion spring; the first vertical mounting rod (10) is fixedly mounted at the bottom of the protective shell sleeve (2); the roller (8) is movably arranged on the rear side wall of the first vertical mounting rod (10); the rear side end of the roller (8) is fixedly connected with the circular baffle (6); when the torsion spring movably connected with the second hinged rod (7) is in a natural state, the rear side end of the second hinged rod (7) inclines downwards; the first hinged rod (5) and the second hinged rod (7) are perpendicular to each other.
3. The micro spectrometer based on the variable-pitch grating as claimed in claim 2, wherein: the second hinged rod (7) is a telescopic rod, the front end of the second hinged rod (7) can be stretched, and the front end of the second hinged rod (7) is fixedly connected with one end of the bending rod (9); the bending rod (9) is an arc-shaped rod with two ends bent upwards.
4. The micro spectrometer based on the variable-pitch grating as claimed in claim 1, wherein: the bottom of the front end of the protective shell (2) is provided with an elastic push plate (31) through a spring; the top of the rear side end of the protective shell sleeve (2) is provided with a slot (11); an inserting plate (12) used for blocking the spectrometer body (1) is movably inserted into the slot (11); and the upper end and the lower end of the inserting plate (12) are both fixedly provided with a barrier strip (20).
5. The micro spectrometer based on the variable-pitch grating as claimed in claim 1, wherein: a rubber sleeve (22) is fixedly arranged on the inner wall of the protective shell sleeve (2); air cavities (23) are uniformly arranged on the inner wall of the rubber sleeve (22); the air cavities (23) are arranged in a staggered manner in the rubber sleeve (22).
6. The micro spectrometer based on the variable-pitch grating as claimed in claim 5, wherein: the inner wall of the rubber sleeve (22) is provided with balls (30), and the balls (30) are uniformly arranged on the inner wall of the protective shell sleeve (2).
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| CN202011563697.5A CN112729545B (en) | 2020-12-25 | 2020-12-25 | Miniature spectrometer based on variable-pitch grating |
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| CN202011563697.5A CN112729545B (en) | 2020-12-25 | 2020-12-25 | Miniature spectrometer based on variable-pitch grating |
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| CN112729545B CN112729545B (en) | 2021-07-16 |
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| EP1236981A1 (en) * | 2000-10-11 | 2002-09-04 | Acterna Eningen GmbH | Optical spectrometer with variable bandwidth |
| CN108843909A (en) * | 2018-08-21 | 2018-11-20 | 桂林智神信息技术有限公司 | A kind of stabilizer gravity center adjusting mechanism |
| CN109573823A (en) * | 2018-12-29 | 2019-04-05 | 象山权友机械有限公司 | Lift clamp structure |
| CN110352903A (en) * | 2019-08-09 | 2019-10-22 | 顾青青 | A kind of fish jar inner-wall cleaning device |
| CN210863641U (en) * | 2019-08-22 | 2020-06-26 | 北京天朗汇丰环境检测有限公司 | Protection device for gas chromatograph |
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2020
- 2020-12-25 CN CN202011563697.5A patent/CN112729545B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1236981A1 (en) * | 2000-10-11 | 2002-09-04 | Acterna Eningen GmbH | Optical spectrometer with variable bandwidth |
| CN108843909A (en) * | 2018-08-21 | 2018-11-20 | 桂林智神信息技术有限公司 | A kind of stabilizer gravity center adjusting mechanism |
| CN109573823A (en) * | 2018-12-29 | 2019-04-05 | 象山权友机械有限公司 | Lift clamp structure |
| CN110352903A (en) * | 2019-08-09 | 2019-10-22 | 顾青青 | A kind of fish jar inner-wall cleaning device |
| CN210863641U (en) * | 2019-08-22 | 2020-06-26 | 北京天朗汇丰环境检测有限公司 | Protection device for gas chromatograph |
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| CN112729545B (en) | 2021-07-16 |
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