CN113758913B - Laser-induced breakdown spectrometer for multi-sample detection - Google Patents
Laser-induced breakdown spectrometer for multi-sample detection Download PDFInfo
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- CN113758913B CN113758913B CN202111317771.XA CN202111317771A CN113758913B CN 113758913 B CN113758913 B CN 113758913B CN 202111317771 A CN202111317771 A CN 202111317771A CN 113758913 B CN113758913 B CN 113758913B
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- 238000001514 detection method Methods 0.000 title claims abstract description 53
- 230000015556 catabolic process Effects 0.000 title claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 140
- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 238000004140 cleaning Methods 0.000 claims description 98
- 238000009434 installation Methods 0.000 claims description 55
- 239000000428 dust Substances 0.000 claims description 23
- 230000007306 turnover Effects 0.000 claims description 17
- 238000003780 insertion Methods 0.000 claims description 15
- 230000037431 insertion Effects 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
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- 238000000034 method Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 238000002536 laser-induced breakdown spectroscopy Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
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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
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/71—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
- G01N21/718—Laser microanalysis, i.e. with formation of sample plasma
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- G—PHYSICS
- G01—MEASURING; TESTING
- 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
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Abstract
The invention relates to the technical field of laser-induced breakdown spectrometers, and provides a laser-induced breakdown spectrometer for multi-sample detection, which comprises a spectrometer system, a bearing mechanism, a rotary detection disc assembly and a first driving mechanism, wherein the first driving mechanism comprises a rotary adjusting component, a rotating pipe and a movable rod, the rotary detection disc assembly comprises a movable plate, a carrying disc and a fixed disc, a first transmission gear is arranged on the outer wall of the carrying disc, the carrying disc is arranged in the movable plate, a first driving motor is arranged in the movable plate, the first driving motor is connected with the first transmission gear through the first driving gear, a screw rod is arranged on the fixed disc, a second transmission gear is arranged at one end of the screw rod, a third transmission gear and a second driving motor are further arranged on the fixed disc, the second driving motor is connected with a second driving gear, the second driving gear is meshed with the third transmission gear, the third transmission gear is meshed with the second transmission gear, the moving plate is also provided with a nut block, and the nut block is in threaded connection with the screw rod.
Description
Technical Field
The invention relates to the technical field of laser-induced breakdown spectrometers, in particular to a laser-induced breakdown spectrometer for multi-sample detection.
Background
Laser-induced breakdown spectroscopy (LIBS) is a new technique for generating a plasma emission spectrum by using the interaction of high-energy pulse Laser and a material and performing elemental analysis, and compared with the conventional spectral measurement technique, the LIBS technique has many advantages: (1) the analysis of various elements can be carried out simultaneously; (2) the method can really realize on-site rapid analysis under the non-destructive or non-contact condition, does not need sample pretreatment, is convenient to analyze, and has small probability of recontamination of a research object; (3) the measuring object is almost not limited, and can be solid, liquid or gas, or can be a substance with high hardness and difficult dissolution; (4) continuous monitoring and real and rapid analysis of time can be realized.
The LIBS spectrometer mainly comprises a laser, a sample stage, a spectrometer and a computer, wherein the basic working process comprises the steps that laser output by a laser source is focused on the surface of a sample through a focusing lens, the sample is excited to a plasma state, an emitted plasma spectrum is sent into the spectrometer through an optical fiber, data collected by the spectrometer are transmitted into the computer, and data storage, analysis and display are achieved through software.
At present, when an LIBS spectrometer is used for detection, a sample is generally placed on a sample table, laser is directly focused on the surface of the sample for induced breakdown, and then a sample spectrum signal is obtained for measurement.
However, the existing laser-induced breakdown spectrometer still has the problems that the position of an internal sample is not convenient to adjust and internal residues cannot be effectively cleaned.
Disclosure of Invention
The invention aims to provide a laser-induced breakdown spectrometer for multi-sample detection, and aims to solve the problems of inconvenience in use and poor practicability when the existing laser-induced breakdown spectrometer for multi-sample detection is used.
In order to achieve the above object, the present invention provides a laser induced breakdown spectrometer for multi-sample detection, comprising a spectrometer system and a carrying mechanism, and further comprising a rotary detection disc assembly and a first driving mechanism, wherein the spectrometer system and the first driving mechanism are both mounted on the carrying mechanism, the first driving mechanism comprises a rotary adjusting component, a rotating tube and a movable rod, the movable rod is connected in the rotating tube, the rotary adjusting component comprises a worm gear and a worm, the worm gear is mounted on the rotating tube, the worm is engaged with the worm gear, the rotary detection disc assembly comprises a movable plate, a carrying disc and a fixed disc, the fixed disc is mounted at one end of the movable rod far away from the rotating tube, a carrying disc mounting groove and a first driving motor mounting groove are formed on the movable plate, a first transmission gear is mounted on the outer wall of the carrying disc, the object carrying disc is arranged in an object carrying disc mounting groove, a first driving motor is mounted in the first driving motor mounting groove, a sealing cover is mounted on the first driving motor mounting groove, a turned-over edge is mounted at the end of the object carrying disc, a dovetail block is mounted on one side, close to a movable plate, of the turned-over edge, a dovetail groove is mounted on the movable plate and is connected in the dovetail groove in a sliding mode, a first driving gear is mounted on the first driving motor and is meshed with the first driving gear, a fixed cover is further mounted on the fixed disc, a lead screw is connected between the fixed cover and the edge of the fixed disc, a second driving gear is mounted at one end, located in the fixed cover, of the lead screw, a third driving gear and a second driving motor are further mounted in the fixed cover, and a second driving gear is connected on the second driving motor, the second driving gear is meshed with the third transmission gear, the third transmission gear is meshed with the second transmission gear, the moving plate is further provided with a nut block, and the nut block is in threaded connection with the screw rod.
As a further scheme of the present invention, the bearing mechanism includes a sample adding chamber, a residue cleaning chamber and a driving device installation chamber, the sample adding chamber, the residue cleaning chamber and the driving device installation chamber are communicated with each other, the rotation adjusting assembly and the rotation tube are installed in the driving device installation chamber, the spectrometer system is installed on the sample adding chamber, a sample adding chamber sealing door, a residue cleaning chamber sealing door and a driving device installation chamber sealing door are respectively installed on the sample adding chamber, the residue cleaning chamber and the driving device installation chamber, an observation window is installed on the sample adding chamber at a position corresponding to the spectrometer system, the spectrometer system includes a computer device, a spectrometer body, a focusing lens and a receiving coupling lens, the focusing lens and the receiving coupling lens are installed on the spectrometer body, and the spectrometer body is electrically connected with the computer device, the first driving motor and the second driving motor are electrically connected with a computer device, the computer device can be used for controlling the opening and closing of the second driving motor and the first driving motor, can also be used for controlling the spectrometer body, and a focusing lens and a receiving coupling lens are used for detecting and analyzing samples.
As a further aspect of the present invention, the first driving mechanism further includes a lifting adjustment assembly, the lifting adjustment assembly includes a first electric telescopic rod, a movable rod mounting seat, a second guide rod and a third spring, a fixed end of the first electric telescopic rod is hinged to an inner wall of the driving device mounting chamber, a movable end of the first electric telescopic rod is hinged to the movable rod mounting seat, a bearing connected to the movable rod is pre-installed in the movable rod mounting seat, a limiting rib is arranged on a surface of the movable rod along an axial direction, a limiting groove is formed in an inner wall of the rotating tube, the limiting rib is slidably connected in the limiting groove, the number of the first electric telescopic rods is several, the several first electric telescopic rods are symmetrical with respect to the movable rod, a second guide rod is installed at a bottom of the driving device mounting chamber, and the movable rod mounting seat is movably sleeved on the second guide rod, the movable rod installation seat is connected with a driving device installation chamber, a plurality of second guide rods are symmetrically arranged on the movable rod installation seat, the first electric telescopic rod is started and can drive the movable rods to do lifting motion along the axis of the rotating pipe, so that the rotary detection disc assembly can be driven to move back and forth between the sample adding chamber and the residue cleaning chamber, the second guide rods and the third spring can improve the stability of the rotary detection disc assembly in the movement process, and the third spring plays a buffering role and prevents the rotary detection disc assembly from being damaged due to the fact that the movement speed is too high.
As a further scheme of the invention, a rotating rod is installed at the center position of the third transmission gear, the rotating rod is installed on a fixed cover, an adjusting block is installed at one end of the rotating rod far away from the third transmission gear, a pull ring is installed at one side of the adjusting block, a second magnet ring is installed at one side of the adjusting block far away from the pull ring, a first magnet ring is installed at a position on the fixed cover corresponding to the second magnet ring, a second spring is further arranged between the third transmission gear and the inner wall of the fixed cover, the second spring is sleeved on the rotating rod, the first magnet ring, the second magnet ring, the third transmission gear and the rotating rod are combined, the position of the third transmission gear can be adjusted according to actual needs, when the object carrying disc does not need to be rotated, the pull ring is manually pulled to separate the first magnet ring from the second magnet ring, and at the moment, the second drive gear cannot drive the second transmission gear to rotate through the third transmission gear, when the object carrying disc needs to be rotated, the pull ring is manually pressed to attach the first magnet ring and the second magnet ring, the second drive gear can drive the second drive gear to rotate through the third drive gear, and the elastic force of the second spring is greater than the adsorption force between the second magnet ring and the first magnet ring.
As a further scheme of the invention, the number of the moving plates, the screw rods, the third transmission gears and the object carrying discs is a plurality, the third transmission gears, the moving plates, the screw rods and the object carrying discs are axially symmetrical relative to the fixed discs, the third transmission gears are meshed and connected with a second driving gear, and the moving plates and the fixed covers are combined into a circular whole.
As a further scheme of the invention, a cleaning mechanism installation chamber is further installed on one side of the residue cleaning chamber, the cleaning mechanism installation chamber is communicated with the residue cleaning chamber, a residue cleaning mechanism is arranged in the cleaning mechanism installation chamber, the residue cleaning mechanism comprises a cleaning assembly, a first framework and a plurality of tooth-shaped guide rails, the tooth-shaped guide rails are arranged on the inner wall of the cleaning mechanism installation chamber in parallel, the cleaning assembly is installed on the first framework, the first framework is installed in the cleaning mechanism installation chamber through the tooth-shaped guide rails, a first transmission shaft, a first driving motor, a transmission assembly and a second transmission shaft are installed on the outer side of the first framework, a fifth transmission gear and a sixth transmission gear are respectively installed on the first transmission shaft and the second transmission shaft, one end of the first transmission shaft is connected with the first driving motor, one end, far away from the first driving motor, of the first transmission shaft is connected with a second transmission shaft through a transmission assembly, the five transmission gears and the sixth transmission gear are both meshed with the tooth-shaped guide rail, and a second electric telescopic rod is installed on the inner side of the first framework.
As a further scheme of the invention, the residue cleaning mechanism further comprises a second framework and a toothed transmission belt, the second framework is connected with the movable end of a second electric telescopic rod, the second framework is connected in the first framework in a sliding manner, a second driving motor and a cleaning assembly mounting plate are mounted on the second framework, the cleaning assembly is mounted on the cleaning assembly mounting plate, a third driving gear is mounted on the second driving motor, the toothed transmission belt is connected between the third driving gear and the cleaning assembly, the cleaning assembly comprises a rotating main body, a fourth transmission gear and a needle cluster mounting rod, the needle cluster mounting rod is mounted on the rotating main body, a fourth transmission gear is mounted on the rotating main body, a plurality of needle clusters are mounted on the surface of the needle cluster mounting rod, the fourth transmission gear is meshed with the toothed transmission belt and is provided with a rotating groove, the rotating main body is installed in the rotating groove, the number of the fourth transmission gears, the number of the rotating main body and the number of the needle cluster installation rods are all a plurality of, the fourth transmission gears, the number of the rotating main body and the number of the needle cluster installation rods are axially symmetrical relative to the cleaning assembly installation plate, and the fourth transmission gears are all meshed with one tooth-shaped transmission belt.
As a further scheme of the invention, a shielding assembly is arranged between the sample adding chamber and the residue cleaning chamber, the shielding assembly comprises a turnover plate, a connecting rod, a rotating shaft and a sliding block, one end of the turnover plate is connected with the inner wall of the sample adding chamber through the rotating shaft, the inner wall of the sample adding chamber is also provided with a sliding chute, a first guide rod is installed in the sliding chute, the sliding block is movably sleeved on the first guide rod, two ends of the connecting rod are respectively hinged with the turnover plate and the sliding block, a first spring is further arranged between the sliding block and the bottom of the sliding chute, the first spring is sleeved on the first guide rod, the number of the turnover plates is two, and the two turnover plates are symmetrically arranged not above the residue cleaning chamber.
As a further scheme of the invention, a support plate is further mounted on the movable rod, a plurality of insertion grooves are formed in the surface of the support plate, a plurality of insertion rods are formed in the surface of the fixed disk, the insertion rods are inserted and connected in the insertion grooves, a limiting component is further arranged in a cavity formed in the support plate, the limiting component comprises a bolt, a slide rod, a baffle, a fourth spring and a fixed block, the fixed block is connected with the bolt through the slide rod, the bolt is inserted and connected with a limiting hole in the insertion rod, the slide rod is connected with the support plate in a sliding manner, the baffle is mounted on the slide rod, the fourth spring is arranged between the baffle and the inner wall of the cavity, and the fourth spring is sleeved on the slide rod.
As a further aspect of the present invention, a residue collection chamber is further installed in the driving device installation chamber, a residue collection assembly is installed in the residue collection chamber, the residue collection assembly includes a dust suction pump, a dust suction valve and a residue collection bag, the residue collection bag is installed in the residue collection chamber, the residue collection bag is connected to the dust suction pump through a communication pipeline, the dust suction pump is installed with the dust suction valve, and the dust suction valve is distributed in the residue cleaning chamber.
In conclusion, the beneficial effects of the invention are as follows:
1. the second driving motor is started to drive the second driving gear to rotate, the adjusting block is pressed to adsorb the second magnet ring and the first magnet ring, the third transmission gear can be connected between the second driving gear and the second transmission gear, the screw rod can be driven to rotate, the moving plate and the object carrying disc on the moving plate are driven to translate for a certain distance through the nut block, the first driving motor drives the object carrying disc to rotate in the object carrying disc mounting groove, the position of a sample on the object carrying disc can be further adjusted, a spectrometer system can conveniently detect and analyze the sample, compared with a traditional object carrying platform, the rotary detection disc assembly not only can rapidly and accurately move the sample to the position of the spectrometer system, but also is convenient for the spectrometer system to detect and analyze different positions on the surface of the sample, and can improve the accuracy of detection and analysis while being convenient to use;
2. the first electric telescopic rod is started to drive the movable rod to do lifting motion along the axis of the rotating pipe, so that the rotary detection disc assembly can be driven to move back and forth between the sample adding chamber and the residue cleaning chamber, and the rotating pipe and the movable rod are matched with the limiting groove through the limiting rib, so that two functions of lifting and rotating the movable rod can be realized simultaneously, and the automatic detection device has the characteristics of ingenious structural matching and simple structure;
3. the design that the first magnet ring, the second magnet ring, the third transmission gear and the rotating rod are combined can adjust the position of the third transmission gear according to actual needs, when the object carrying disc does not need to be rotated, the pull ring is manually pulled to separate the first magnet ring from the second magnet ring, the second transmission gear cannot drive the second transmission gear to rotate through the third transmission gear, when the object carrying disc needs to be rotated, the pull ring is manually pressed to attach the first magnet ring to the second magnet ring, and the second transmission gear can drive the second transmission gear to rotate through the third transmission gear, so that the magnetic disc has the characteristics of compact structural fit, good flexibility, convenience in use and strong practicability;
4. the second electric telescopic rod can drive the second framework and the cleaning component to move horizontally, so that the cleaning component is quickly moved to the position of the rotary detection disc assembly until the needle cluster mounting rods with a plurality of needle clusters are inserted into the object carrying disc, at the moment, the second driving motor is started, and under the transmission action of the third driving gear and the tooth-shaped transmission belt, the needle cluster mounting rods can be driven to rotate around the axes of the needle cluster mounting rods simultaneously, so that sample residues scattered or adhered in the object carrying disc are cleaned;
5. the flip plate positive and negative both sides all design to the slope structure, so just so, rotatory detection dish assembly is when the roof pressure flip plate, not only can move along the flip plate surface, can also drive the flip plate rotation, the elasticity of first spring can drive the flip plate again and reset, possess the ingenious characteristics of structure cooperation, no matter rotatory detection dish assembly is located sample application of sample room or when the residue clearance is indoor, the flip plate all keeps apart sample application room and residue clearance room all the time, prevent that dust or residue in the residue clearance room from getting into in the sample application of sample room, be favorable to guaranteeing the cleanliness factor in the sample application of sample room.
Drawings
FIG. 1 is a front view of a laser induced breakdown spectrometer for multi-sample detection according to an embodiment of the present invention.
Fig. 2 is a schematic plane structure diagram of a laser induced breakdown spectrometer for multi-sample detection according to an embodiment of the present invention.
FIG. 3 is a cross-sectional view A-A of FIG. 2 according to the present invention.
FIG. 4 is a perspective view of a rotary test disk assembly in accordance with an embodiment of the present invention.
FIG. 5 is a top view of a rotating test plate assembly in accordance with an embodiment of the present invention.
FIG. 6 is an assembled view of a rotary test disk assembly according to an embodiment of the present invention.
Fig. 7 is a perspective view of a fixing plate in an embodiment of the present invention.
FIG. 8 is a first perspective view of the moving plate in an embodiment of the present invention.
FIG. 9 is a second perspective view of the moving plate in an embodiment of the present invention.
Fig. 10 is a perspective view of a carrier tray in an embodiment of the present invention.
FIG. 11 is a perspective view of the residue cleaning mechanism in an embodiment of the present invention.
Fig. 12 is a perspective view of a first frame in an embodiment of the invention.
FIG. 13 is a schematic view of the assembly of the cleaning assembly, the second frame and the toothed belt in an embodiment of the present invention.
Fig. 14 is a perspective view of a second bobbin in an embodiment of the present invention.
FIG. 15 is a perspective view of a cleaning assembly in an embodiment of the present invention.
Fig. 16 is a partial enlarged view of a in fig. 1 according to the present invention.
Fig. 17 is a partial enlarged view of b of fig. 1 according to the present invention.
Fig. 18 is a partial enlarged view of c of fig. 1 according to the present invention.
Fig. 19 is a partial enlarged view of d in fig. 1 according to the present invention.
Fig. 20 is an enlarged view of a portion of the lift adjustment assembly of fig. 1 in accordance with the present invention.
Reference numerals: 1-bearing mechanism, 11-sample adding chamber, 111-sample adding chamber sealing door, 112-observation window, 12-residue cleaning chamber, 121-chute, 122-first guide rod, 123-slide block, 124-first spring, 125-cleaning mechanism installation chamber, 126-residue cleaning chamber sealing door, 13-residue collection chamber, 14-driving device installation chamber, 141-driving device installation chamber sealing door, 2-rotary detection disc assembly, 21-moving plate, 211-carrying disc installation groove, 212-first driving gear, 213-dovetail groove, 214-first driving motor, 215-first driving motor installation groove, 2151-sealing cover, 216-nut block, 22-carrying disc, 221-first driving gear, 222-flanging, 223-dovetail block, 23-fixed disc, 231-plug rod, 24-screw rod, 241-second transmission gear, 25-fixed cover, 251-first magnet ring, 26-adjusting block, 261-pull ring, 262-second magnet ring, 263-rotating rod, 264-second spring, 265-third transmission gear, 27-second driving motor, 271-second driving gear, 3-first driving mechanism, 31-lifting adjusting component, 311-first electric telescopic rod, 312-movable rod mounting seat, 313-second guide rod, 314-third spring, 32-rotating adjusting component, 33-rotating tube, 34-movable rod, 341-limiting rib, 35-supporting plate, 351-plug groove, 352-limiting component, 3521-bolt, 3522-slide bar, 3523-baffle, 3524-fourth spring, 3525-fixed block, 4-shielding component, 41-turnover plate, 42-connecting rod, 43-rotating shaft, 5-residue cleaning mechanism, 51-cleaning component, 511-rotating main body, 512-fourth transmission gear, 513-needle cluster mounting rod, 514-needle cluster, 52-first framework, 521-first transmission shaft, 522-fifth transmission gear, 523-first driving motor, 524-second electric telescopic rod, 525-transmission component, 526-sixth transmission gear, 527-second transmission shaft, 53-tooth-shaped guide rail, 54-second framework, 541-third driving gear, 542-second driving motor and 543-cleaning component mounting plate, 544-rotating trough, 55-toothed belt, 6-residue collection assembly, 61-dust suction pump, 62-dust suction valve, 63-residue collection bag, 7-spectrometer system, 71-computer equipment, 72-spectrometer body, 73-focusing lens, 74-receiving coupling lens.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
Referring to fig. 1, 3, 4, 5, 6, 7, 8, 9 and 10, the laser induced breakdown spectrometer for multi-sample detection according to an embodiment of the present invention includes a spectrometer system 7, a carrying mechanism 1, a rotary detection plate assembly 2 and a first driving mechanism 3, where the spectrometer system 7 and the first driving mechanism 3 are both mounted on the carrying mechanism 1, the first driving mechanism 3 includes a rotation adjusting component 32, a rotating tube 33 and a movable rod 34, the movable rod 34 is connected in the rotating tube 33, the rotation adjusting component 32 includes a worm gear and a worm, the worm gear is mounted on the rotating tube 33, the worm is engaged with the worm gear, the rotary detection plate assembly 2 includes a moving plate 21, a carrying plate 22 and a fixed plate 23, the fixed plate 23 is mounted on the movable rod 34 at an end far from the rotating tube 33, the moving plate 21 is provided with a carrying plate mounting groove 211 and a first driving motor mounting groove 215, carry thing dish 22 outer wall to install first drive gear 221, carry thing dish 22 to install in carrying thing dish mounting groove 211, install first driving motor 214 in the first driving motor mounting groove 215, install sealed lid 2151 on the first driving motor mounting groove 215, carry thing dish 22 tip to install turn-ups 222, turn-ups 222 is gone up one side that is close to movable plate 21 and is installed dovetail block 223, install dovetail 213 on the movable plate 21, dovetail block 223 sliding connection is in dovetail 213, install first drive gear 212 on the first driving motor 214, first drive gear 221 is connected with first drive gear 212 meshing, still install fixed cover 25 on the fixed disk 23, be connected with lead screw 24 between fixed cover 25 and the fixed disk 23 edge, second drive gear 241 is installed to the one end that lies in fixed cover 25 on the lead screw 24, the fixed cover 25 is also internally provided with a third transmission gear 265 and a second driving motor 27, the second driving motor 27 is connected with a second driving gear 271, the second driving gear 271 is meshed with the third transmission gear 265, the third transmission gear 265 is meshed with a second transmission gear 241, the moving plate 21 is also provided with a nut block 216, and the nut block 216 is in threaded connection with the screw rod 24.
In the embodiment of the present invention, the worm is further provided with a handle, the handle is manually operated to drive the worm to rotate, so as to drive the worm wheel, the rotating tube 33 and the movable rod 34 to rotate, and further drive the rotation detection disc assembly 2 to rotate, and the object carrying disc 22 on the rotation detection disc assembly 2 can be rapidly moved to the position of the spectrometer system 7, when the position of the object carrying disc 22 needs to be finely adjusted, first, the second driving motor 27 is started to drive the second driving gear 271 to rotate, then the adjusting block 26 is pressed to adsorb the second magnet ring 262 and the first magnet ring 251, at this time, the third transmission gear 265 can be connected between the second driving gear 271 and the second transmission gear 241, and further can drive the screw rod 24 to rotate, and further drive the moving plate 21 and the object carrying disc 22 on the moving plate 21 to move for a certain distance through the nut block 216 and then stop. Then, the first driving motor 214 is started to drive the first driving gear 212 to rotate, the object carrying tray 22 is driven to rotate in the object carrying tray mounting groove 211 by utilizing the meshing principle between the first driving gear 212 and the first transmission gear 221, the position of a sample on the object carrying tray 22 can be further adjusted, and the spectrometer system 7 can conveniently detect and analyze the sample.
Referring to fig. 1 and 2, in an embodiment of the present invention, the bearing mechanism 1 includes a sample adding chamber 11, a residue cleaning chamber 12, and a driving device installation chamber 14, the sample adding chamber 11, the residue cleaning chamber 12, and the driving device installation chamber 14 are communicated with each other, the rotation adjusting assembly 32 and the rotation tube 33 are installed in the driving device installation chamber 14, the spectrometer system 7 is installed on the sample adding chamber 11, the residue cleaning chamber 12, and the driving device installation chamber 14 are respectively installed with a sample adding chamber sealing door 111, a residue cleaning chamber sealing door 126, and a driving device installation chamber sealing door 141, the sample adding chamber 11 is installed with an observation window 112 at a position corresponding to the spectrometer system 7, the spectrometer system 7 includes a computer device 71, a spectrometer body 72, a focusing lens 73, and a receiving coupling lens 74, the focusing lens 73 and the receiving coupling lens 74 are both installed on the spectrometer body 72, the spectrometer body 72 is electrically connected to the computer device 71, and the first driving motor 214 and the second driving motor 27 are both electrically connected to the computer device 71.
In an embodiment of the invention, the computer device 71 can be used not only to control the second drive motor 27 and the first drive motor 214 to turn on and off, but also to control the spectrometer body 72 and to detect the analysed sample using the focusing lens 73 and the receiving coupling lens 74.
Referring to fig. 1 and 20, in an embodiment of the present invention, the first driving mechanism 3 further includes a lifting adjusting assembly 31, the lifting adjusting assembly 31 includes a first electric telescopic rod 311, a movable rod mounting seat 312, a second guide rod 313 and a third spring 314, a fixed end of the first electric telescopic rod 311 is hinged to an inner wall of the driving device mounting chamber 14, a movable end of the first electric telescopic rod 311 is hinged to the movable rod mounting seat 312, a bearing connected to the movable rod 34 is pre-installed in the movable rod mounting seat 312, a limiting rib 341 is disposed on a surface of the movable rod 34 along an axial direction, a limiting groove is disposed on an inner wall of the rotating tube 33, the limiting rib 341 is slidably connected to the limiting groove, the number of the first electric telescopic rods 311 is several, the number of the first electric telescopic rods 311 is axially symmetric with respect to the movable rod 34, the second guide rod 313 is installed at the bottom of the driving device mounting chamber 14, the movable rod mounting seat 312 is movably sleeved on the second guide rod 313, a third spring 314 is connected between the movable rod mounting seat 312 and the driving device mounting chamber 14, the third spring 314 is sleeved on the second guide rod 313, the number of the second guide rods 313 is a plurality, and the plurality of second guide rods 313 are axially symmetrical with respect to the movable rod 34.
In the embodiment of the invention, the first electric telescopic rod 311 is started to drive the movable rod 34 to do lifting motion along the axis of the rotating pipe 33, so that the rotary detection disc assembly 2 can be driven to move back and forth between the sample adding chamber 11 and the residue cleaning chamber 12, the rotating pipe 33 and the movable rod 34 are matched with the limiting groove through the limiting rib 341, two functions of lifting and rotating the movable rod 34 can be realized simultaneously, and the rotary detection disc assembly has the characteristics of ingenious structural matching and simple structure, the second guide rod 313 and the third spring 314 can improve the stability of the rotary detection disc assembly 2 in the motion process, and the third spring 314 plays a role in buffering, so that the rotary detection disc assembly 2 is prevented from being damaged due to overhigh motion speed.
Referring to fig. 1 and 16, in an embodiment of the present invention, a rotating rod 263 is installed at a center position of the third transmission gear 265, the rotating rod 263 is installed on the fixed cover 25, an adjusting block 26 is installed at one end of the rotating rod 263, which is far away from the third transmission gear 265, a pull ring 261 is installed at one side of the adjusting block 26, a second magnet ring 262 is installed at one side of the adjusting block 26, which is far away from the pull ring 261, a first magnet ring 251 is installed at a position on the fixed cover 25, which corresponds to the second magnet ring 262, a second spring 264 is further disposed between the third transmission gear 265 and an inner wall of the fixed cover 25, the second spring 264 is sleeved on the rotating rod 263, and an elastic force of the second spring 264 is greater than an absorption force between the second magnet ring 262 and the first magnet ring 251.
In the embodiment of the present invention, the first magnet ring 251, the second magnet ring 262, the third transmission gear 265 and the rotating rod 263 are combined, so that the position of the third transmission gear 265 can be adjusted according to actual needs, when the object carrying tray 22 does not need to be rotated, the pull ring 261 is manually pulled to separate the first magnet ring 251 from the second magnet ring 262, at this time, the second drive gear 271 cannot drive the second transmission gear 241 to rotate through the third transmission gear 265, when the object carrying tray 22 needs to be rotated, the pull ring 261 is manually pressed to attach the first magnet ring 251 to the second magnet ring 262, at this time, the second drive gear 271 can drive the second transmission gear 241 to rotate through the third transmission gear 265, and the present invention has the characteristics of compact structure, good flexibility, convenient use and strong practicability.
Referring to fig. 4 to 10, in an embodiment of the present invention, the number of the moving plate 21, the screw 24, the third transmission gear 265 and the object tray 22 is several, and the number of the third transmission gear 265, the moving plate 21, the screw 24 and the object tray 22 are axisymmetric with respect to the fixed tray 23, the number of the third transmission gears 265 are all engaged with a second driving gear 271, and the number of the moving plate 21 and the fixed cover 25 are combined into a circular whole.
In the embodiment of the present invention, the larger the number of the carrier trays 22, the more kinds of samples can be placed, the more samples can be simultaneously measured and analyzed, and the greater the practicability.
Referring to fig. 3, 11 and 12, in an embodiment of the present invention, a cleaning mechanism installation chamber 125 is further installed on one side of the residue cleaning chamber 12, the cleaning mechanism installation chamber 125 is communicated with the residue cleaning chamber 12, a residue cleaning mechanism 5 is installed in the cleaning mechanism installation chamber 125, the residue cleaning mechanism 5 includes a cleaning assembly 51, a first framework 52 and a plurality of tooth-shaped guide rails 53, the number of the tooth-shaped guide rails 53 is several, the plurality of tooth-shaped guide rails 53 are arranged in parallel on the inner wall of the cleaning mechanism installation chamber 125, the cleaning assembly 51 is installed on the first framework 52, the first framework 52 is installed in the cleaning mechanism installation chamber 125 through the tooth-shaped guide rails 53, a first transmission shaft 521, a first driving motor 523, a transmission assembly 525 and a second transmission shaft 527 are installed on the outer side of the first framework 52, a fifth transmission gear 522 and a sixth transmission gear 526 are installed on the first transmission shaft 521 and the second transmission shaft 527 respectively, one end of the first transmission shaft 521 is connected with the first driving motor 523, one end of the first transmission shaft 521, which is far away from the first driving motor 523, is connected with the second transmission shaft 527 through the transmission assembly 525, the five transmission gears 522 and the sixth transmission gear 526 are both meshed with the tooth-shaped guide rail 53, and the inner side of the first framework 52 is provided with the second electric telescopic rod 524.
In the embodiment of the present invention, after the lifting adjustment component 31 moves the rotation detection disc assembly 2 into the residue cleaning chamber 12, the first driving motor 523 is started to drive the first transmission shaft 521 and the fifth transmission gear 522 to rotate, and under the transmission action of the transmission component 525, the second transmission shaft 527 and the sixth transmission gear 526 can be synchronously driven to rotate, and the function of lifting the residue cleaning mechanism 5 can be realized by utilizing the meshing relationship between the fifth transmission gear 522 and the sixth transmission gear 526 and the tooth-shaped guide rail 53.
Referring to fig. 2 and 13 to 18, in an embodiment of the present invention, the residue cleaning mechanism 5 further includes a second frame 54 and a toothed belt 55, the second frame 54 is connected to the movable end of the second electric telescopic rod 524, the second frame 54 is slidably connected to the first frame 52, the second frame 54 is provided with a second driving motor 542 and a cleaning assembly mounting plate 543, the cleaning assembly 51 is mounted on the cleaning assembly mounting plate 543, the second driving motor 542 is provided with a third driving gear 541, the toothed belt 55 is connected between the third 541 driving gear and the cleaning assembly 51, the cleaning assembly 51 includes a rotating body 511, a fourth transmission gear 512 and a needle cluster mounting rod 513, the needle cluster mounting rod 513 is mounted on the rotating body 511, the rotating body 511 is provided with the fourth transmission gear 512, a plurality of needle clusters 514 are mounted on the surface of the needle cluster mounting rod 513, fourth drive gear 512 is connected with profile of tooth drive belt 55 meshing, seted up on the clearance subassembly mounting panel 543 and rotated groove 544, it installs in rotating groove 544 to rotate main part 511, the quantity of rotating main part 511, fourth drive gear 512 and needle cluster installation pole 513 is a plurality of, and a plurality of fourth drive gear 512, rotate main part 511 and needle cluster installation pole 513 is about clearance subassembly mounting panel 543 axisymmetric, a plurality of fourth drive gear 512 all is connected with a profile of tooth drive belt 55 meshing.
In the embodiment of the present invention, the second electric telescopic rod 524 can drive the second framework 54 and the cleaning component 51 to move horizontally, so as to quickly move the cleaning component 51 to the position of the rotary detection disc assembly 2 until the needle cluster mounting rod 513 with the plurality of needle clusters 514 is inserted into the object carrying disc 22, at this time, the second driving motor 542 is started, and under the transmission action of the third driving gear 541 and the toothed transmission belt 55, the plurality of needle cluster mounting rods 513 can be driven to rotate around their own axes at the same time, so as to clean the sample residues scattered or adhered in the object carrying disc 22.
Referring to fig. 1 and 19, in an embodiment of the present invention, a shielding assembly 4 is disposed between the sample adding chamber 11 and the residue cleaning chamber 12, the shielding assembly 4 includes a turning plate 41, a connecting rod 42, a rotating shaft 43 and a sliding block 123, one end of the turning plate 41 is connected to an inner wall of the sample adding chamber 11 through the rotating shaft 43, the inner wall of the sample adding chamber 11 is further provided with a sliding groove 121, a first guiding rod 122 is installed in the sliding groove 121, the sliding block 123 is movably sleeved on the first guiding rod 122, two ends of the connecting rod 42 are respectively hinged to the turning plate 41 and the sliding block 123, a first spring 124 is further disposed between the sliding block 123 and the bottom of the sliding groove 121, the first spring 124 is sleeved on the first guiding rod 122, the number of the turning plates 41 is two, and the two turning plates 41 are symmetrically not located above the residue cleaning chamber 12.
In the embodiment of the invention, the two turnover plates 41 are respectively provided with an avoiding groove for avoiding the movable rod 34 to prevent interference, and the front and back surfaces of the turnover plate 41 are designed to be inclined structures, so that the rotary detection disc assembly 2 not only can move along the surface of the turnover plate 41 when being pressed against the turnover plate 41, but also can drive the turnover plate 41 to rotate, the elastic force of the first spring 124 can drive the turnover plate 41 to reset, and the rotary detection disc assembly has the characteristic of ingenious structural matching, and when the rotary detection disc assembly 2 is positioned in the sample adding chamber 11 or the residue cleaning chamber 12, the turnover plate 41 always separates the sample adding chamber 11 from the residue cleaning chamber 12, so that dust or residues in the residue cleaning chamber 12 are prevented from entering the sample adding chamber 11, and the cleanliness in the sample adding chamber 11 is ensured.
Referring to fig. 1 and 18, in an embodiment of the present invention, a support plate 35 is further installed on the movable rod 34, a plurality of insertion grooves 351 are formed on a surface of the support plate 35, a plurality of insertion rods 231 are formed on a surface of the fixed disk 23, the insertion rods 231 are inserted into the insertion grooves 351, a limit component 352 is further disposed in a cavity formed in the support plate 35, the limit component 352 includes a bolt 3521, a slide rod 3522, a baffle 3523, a fourth spring 3524 and a fixed block 3525, the fixed block 3525 is connected with the bolt 3521 through the slide rod 3522, the bolt 3521 is inserted into a limit hole formed in the insertion rod 231, the slide rod 3522 is slidably connected with the support plate 35, the baffle 3523 is installed on the slide rod 3522, the fourth spring 3524 is disposed between the baffle 3523 and an inner wall of the cavity, and the fourth spring 3524 is sleeved on the slide rod 3522.
In an embodiment of the present invention, the stop element 352 is designed to facilitate mounting and dismounting of the rotary test disc assembly 2.
Referring to fig. 1, in an embodiment of the present invention, a residue collection chamber 13 is further installed in the driving device installation chamber 14, a residue collection assembly 6 is installed in the residue collection chamber 13, the residue collection assembly 6 includes a dust suction pump 61, a dust suction valve 62 and a residue collection bag 63, the residue collection bag 63 is installed in the residue collection chamber 13, the residue collection bag 63 is connected to the dust suction pump 61 through a communication pipe, the dust suction pump 61 is installed with the dust suction valve 62, and the dust suction valve 62 is distributed in the residue cleaning chamber 12.
In the embodiment of the invention, the residue collection assembly 6 can absorb the residue and dust in the residue cleaning chamber 12 into the residue collection bag 63, so as to be convenient for centralized processing.
The working process of the embodiment of the invention is as follows: the manual operation handle drives the worm to rotate, and can drive the worm wheel, the rotating tube 33 and the movable rod 34 to rotate, and further drive the rotation detection disc assembly 2 to rotate, and can rapidly move the object carrying disc 22 on the rotation detection disc assembly 2 to the position of the spectrometer system 7, when the position of the object carrying disc 22 needs to be finely adjusted, firstly, the second driving motor 27 is started to drive the second driving gear 271 to rotate, then the adjusting block 26 is pressed, the second magnet ring 262 and the first magnet ring 251 are adsorbed, at this time, the third transmission gear 265 can be connected between the second driving gear 271 and the second transmission gear 241, and further the lead screw 24 can be driven to rotate, and further the moving plate 21 and the object carrying disc 22 on the moving plate 21 are driven by the nut block 216 to move for a certain distance and then stop. Then, the first driving motor 214 is started to drive the first driving gear 212 to rotate, the object carrying tray 22 is driven to rotate in the object carrying tray installation groove 211 by using the meshing principle between the first driving gear 212 and the first transmission gear 221, the position of a sample on the object carrying tray 22 can be further adjusted, and the spectrometer system 7 can conveniently detect and analyze the sample;
the first electric telescopic rod 311 is started to drive the movable rod 34 to do lifting motion along the axis of the rotating pipe 33, so as to drive the rotary detection disc assembly 2 to move back and forth between the sample adding chamber 11 and the residue cleaning chamber 12, when the lifting adjusting component 31 moves the rotary detection disc assembly 2 into the residue cleaning chamber 12, the first driving motor 523 is started to drive the first transmission shaft 521 and the fifth transmission gear 522 to rotate, under the transmission action of the transmission component 525, the second transmission shaft 527 and the sixth transmission gear 526 can be synchronously driven to rotate, the meshing relationship between the fifth transmission gear 522 and the sixth transmission gear 526 and the tooth-shaped guide rail 53 is utilized, the lifting function of the residue cleaning mechanism 5 can be realized, the second electric telescopic rod 524 can drive the second framework 54 and the cleaning component 51 to horizontally move, so as to quickly move the cleaning component 51 to the position of the rotary detection disc assembly 2, until the needle cluster mounting rod 513 with the needle clusters 514 is inserted into the object carrying tray 22, the second driving motor 542 is started, and under the transmission action of the third driving gear 541 and the toothed transmission belt 55, the needle cluster mounting rods 513 can be driven to rotate around the axes thereof at the same time, so that sample residues scattered or adhered in the object carrying tray 22 are cleaned.
Although several embodiments and examples of the present invention have been described for those skilled in the art, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in other various ways, and various omissions, substitutions, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A laser-induced breakdown spectrometer for multi-sample detection comprises a spectrometer system (7) and a bearing mechanism (1), and is characterized by further comprising a rotary detection disc assembly (2) and a first driving mechanism (3), wherein the spectrometer system (7) and the first driving mechanism (3) are both installed on the bearing mechanism (1), the first driving mechanism (3) comprises a rotary adjusting component (32), a rotating tube (33) and a movable rod (34), the movable rod (34) is connected in the rotating tube (33), the rotary adjusting component (32) comprises a worm wheel and a worm, the worm wheel is installed on the rotating tube (33), the worm wheel is meshed with the worm wheel and connected, the rotary detection disc assembly (2) comprises a movable plate (21), a carrier disc (22) and a fixed disc (23), the fixed disc (23) is installed on the movable rod (34) and is far away from one end of the rotating tube (33), offer on movable plate (21) and carry thing dish mounting groove (211) and first driving motor mounting groove (215), carry thing dish (22) outer wall and install first drive gear (221), carry thing dish (22) and install in carrying thing dish mounting groove (211), install first driving motor (214) in first driving motor mounting groove (215), install sealed lid (2151) on first driving motor mounting groove (215), turn-ups (222) are installed to thing dish (22) tip, dovetail block (223) are installed to one side that is close to movable plate (21) on turn-ups (222), install dovetail (213) on movable plate (21), dovetail block (223) sliding connection is in dovetail (213), install first drive gear (212) on first driving motor (214), first drive gear (221) and first drive gear (212) meshing are connected, the fixed disc (23) is further provided with a fixed cover (25), a screw rod (24) is connected between the fixed cover (25) and the edge of the fixed disc (23), one end, positioned in the fixed cover (25), of the screw rod (24) is provided with a second transmission gear (241), a third transmission gear (265) and a second driving motor (27) are further arranged in the fixed cover (25), the second driving motor (27) is connected with a second driving gear (271), the second driving gear (271) is meshed with the third transmission gear (265), the third transmission gear (265) is meshed with the second transmission gear (241), the moving plate (21) is further provided with a nut block (216), and the nut block (216) is in threaded connection with the screw rod (24);
the first driving mechanism (3) further comprises a lifting adjusting component (31), the lifting adjusting component (31) comprises a first electric telescopic rod (311), a movable rod mounting seat (312), a second guide rod (313) and a third spring (314), the fixed end of the first electric telescopic rod (311) is hinged to the inner wall of the driving equipment mounting chamber (14), the movable end of the first electric telescopic rod (311) is hinged to the movable rod mounting seat (312), a bearing connected with the movable rod (34) is pre-installed in the movable rod mounting seat (312), a limiting rib (341) is arranged on the surface of the movable rod (34) along the axis direction, a limiting groove is formed in the inner wall of the rotating tube (33), the limiting rib (341) is connected in the limiting groove in a sliding manner, the number of the first electric telescopic rods (311) is a plurality of, and the plurality of first electric telescopic rods (311) are axially symmetrical with respect to the movable rod (34), a second guide rod (313) is installed at the bottom of the driving equipment installation chamber (14), the movable rod installation seat (312) is movably sleeved on the second guide rod (313), a third spring (314) is connected between the movable rod installation seat (312) and the driving equipment installation chamber (14), the third spring (314) is sleeved on the second guide rod (313), the number of the second guide rods (313) is a plurality, and the plurality of second guide rods (313) are axially symmetrical about the movable rod (34);
bearing mechanism (1) includes sample application room (11), residue clearance room (12) and drive device installation room (14), sample application room (11), residue clearance room (12) and drive device installation room (14) communicate each other, install in drive device installation room (14) rotation regulation subassembly (32) and rotating tube (33), spectrum appearance system (7) are installed on sample application room (11), install sample application room (11), residue clearance room (12) and drive device installation room (14) respectively on sample application room (11), residue clearance room sealing door (126) and drive device installation room sealing door (141), sample application room (11) are gone up and are installed observation window (112) with the position that spectrum appearance system (7) corresponds, spectrum appearance system (7) include computer equipment (71), The spectrometer comprises a spectrometer body (72), a focusing lens (73) and a receiving coupling lens (74), wherein the focusing lens (73) and the receiving coupling lens (74) are both installed on the spectrometer body (72), the spectrometer body (72) is electrically connected with a computer device (71), a first driving motor (214) and a second driving motor (27) are both electrically connected with the computer device (71), a residue collecting chamber (13) is further installed in a driving device installation chamber (14), a residue collecting component (6) is installed in the residue collecting chamber (13), the residue collecting component (6) comprises a dust suction pump (61), a dust suction valve (62) and a residue collecting bag (63), the residue collecting bag (63) is installed in the residue collecting chamber (13), the residue collecting bag (63) is connected with the dust suction pump (61) through a communication pipeline, and the dust suction valve (62) is installed on the dust suction pump (61), the dust suction valves (62) are distributed in the residue cleaning chamber (12);
the spectrometer system (7) comprises a computer device (71), a spectrometer body (72), a focusing lens (73) and a receiving coupling lens (74), wherein the focusing lens (73) and the receiving coupling lens (74) are both installed on the spectrometer body (72), the spectrometer body (72) is electrically connected with the computer device (71), and the first driving motor (214) and the second driving motor (27) are both electrically connected with the computer device (71).
2. The laser-induced breakdown spectrometer for multi-sample detection according to claim 1, wherein a rotating rod (263) is installed at the center position of the third transmission gear (265), the rotating rod (263) is installed on the fixed cover (25), an adjusting block (26) is installed at one end of the rotating rod (263) far away from the third transmission gear (265), a pull ring (261) is installed at one side of the adjusting block (26), a second magnet ring (262) is installed at one side of the adjusting block (26) far away from the pull ring (261), a first magnet ring (251) is installed at a position on the fixed cover (25) corresponding to the second magnet ring (262), a second spring (264) is further arranged between the third transmission gear (265) and the inner wall of the fixed cover (25), the second spring (264) is sleeved on the rotating rod (263), and the elastic force of the second spring (264) is larger than the magnetic force between the second magnet ring (262) and the first magnet ring (251) And (4) attaching force.
3. The laser induced breakdown spectrometer for multi-sample detection according to claim 2, wherein the number of the moving plate (21), the screw rod (24), the third transmission gear (265) and the object carrying disk (22) is several, and the number of the third transmission gear (265), the moving plate (21), the screw rod (24) and the object carrying disk (22) are axisymmetric with respect to the fixed disk (23), the number of the third transmission gear (265) is engaged with one second driving gear (271), and the number of the moving plate (21) and the fixed cover (25) are combined into a circular whole.
4. The laser-induced breakdown spectrometer for multi-sample detection according to claim 3, wherein a cleaning mechanism installation chamber (125) is further installed on one side of the residue cleaning chamber (12), the cleaning mechanism installation chamber (125) is communicated with the residue cleaning chamber (12), a residue cleaning mechanism (5) is arranged in the cleaning mechanism installation chamber (125), the residue cleaning mechanism (5) comprises a cleaning component (51), a first framework (52) and tooth-shaped guide rails (53), the number of the tooth-shaped guide rails (53) is several, the tooth-shaped guide rails (53) are arranged on the inner wall of the cleaning mechanism installation chamber (125) in parallel, the cleaning component (51) is installed on the first framework (52), the first framework (52) is installed in the cleaning mechanism installation chamber (125) through the tooth-shaped guide rails (53), and a first transmission shaft (521) is installed outside the first framework (52), First driving motor (523), transmission assembly (525) and second transmission shaft (527), install fifth drive gear (522) and sixth drive gear (526) on first transmission shaft (521) and second transmission shaft (527) respectively, first transmission shaft (521) one end is connected with first driving motor (523), the one end of keeping away from first driving motor (523) on first transmission shaft (521) is passed through transmission assembly (525) and is connected second transmission shaft (527), fifth drive gear (522) and sixth drive gear (526) all are connected with tooth form guide rail (53) meshing, second electric telescopic handle (524) then are installed to first skeleton (52) inboard.
5. The laser induced breakdown spectrometer for multi-sample detection according to claim 4, wherein the residue cleaning mechanism (5) further comprises a second frame (54) and a toothed belt (55), the second frame (54) is connected with the movable end of the second electric telescopic rod (524), the second frame (54) is slidably connected in the first frame (52), a second driving motor (542) and a cleaning component mounting plate (543) are mounted on the second frame (54), the cleaning component (51) is mounted on the cleaning component mounting plate (543), a third driving gear (541) is mounted on the second driving motor (542), the toothed belt (55) is connected between the third driving gear (541) and the cleaning component (51), the cleaning component (51) comprises a rotating body (511), a fourth driving gear (512) and a needle cluster mounting rod (513), needle cluster installation pole (513) is installed on rotating main part (511), rotate and install fourth drive gear (512) on main part (511), needle cluster installation pole (513) surface mounting has a plurality of needle clusters (514), fourth drive gear (512) is connected with profile of tooth drive belt (55) meshing, cleaning assembly mounting panel (543) is gone up and has been seted up rotation groove (544), rotating main part (511) is installed in rotation groove (544), the quantity of rotating main part (511), fourth drive gear (512) and needle cluster installation pole (513) is a plurality of, and a plurality of fourth drive gear (512), rotates main part (511) and needle cluster installation pole (513) about cleaning assembly mounting panel (543) axial symmetry, a plurality of fourth drive gear (512) all is connected with a profile of tooth drive belt (55) meshing.
6. The laser-induced breakdown spectrometer for multi-sample detection according to claim 5, wherein a shielding component (4) is arranged between the sample adding chamber (11) and the residue cleaning chamber (12), the shielding component (4) comprises a turnover plate (41), a connecting rod (42), a rotating shaft (43) and a sliding block (123), one end of the turnover plate (41) is connected with the inner wall of the sample adding chamber (11) through the rotating shaft (43), a sliding groove (121) is further formed in the inner wall of the sample adding chamber (11), a first guide rod (122) is installed in the sliding groove (121), the sliding block (123) is movably sleeved on the first guide rod (122), two ends of the connecting rod (42) are respectively hinged with the turnover plate (41) and the sliding block (123), a first spring (124) is further arranged between the sliding block (123) and the bottom of the sliding groove (121), the first spring (124) is sleeved on the first guide rod (122), the number of the turnover plates (41) is two, and the two turnover plates (41) are symmetrically distributed above the residue cleaning chamber (12).
7. The laser-induced breakdown spectrometer for multi-sample detection according to claim 6, wherein the movable rod (34) is further provided with a supporting plate (35), the surface of the supporting plate (35) is provided with a plurality of insertion grooves (351), the surface of the fixed disk (23) is provided with a plurality of insertion rods (231), the insertion rods (231) are inserted into the insertion grooves (351), a limiting component (352) is further disposed in a cavity formed in the supporting plate (35), the limiting component (352) comprises a plug pin (3521), a sliding rod (3522), a baffle (3523), a fourth spring (3524) and a fixing block (3525), the fixing block (3525) is connected with the plug pin (3521) through the sliding rod (3522), the plug pin (3521) is inserted into and connected with a limiting hole formed in the insertion rod (231), and the sliding rod (3522) is slidably connected with the supporting plate (35), the sliding rod (3522) is provided with a baffle (3523), a fourth spring (3524) is arranged between the baffle (3523) and the inner wall of the cavity, and the sliding rod (3522) is sleeved with the fourth spring (3524).
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