Enriched water body heavy metal detection device based on laser spectrum

Abstract

The utility model belongs to the technical field of laser spectrum detection, and particularly relates to an enriched water body heavy metal detection device based on laser spectrum, which comprises a detection chamber, a light source, a light source and a light source, the loading assembly is arranged in the detection chamber and comprises an adjusting platform, a sample platform is arranged on the side, away from the ground, of the adjusting platform, a sample bin is arranged on the sample platform, and a spectrum assembly is arranged on the side, away from the inlet end of the sample platform, of the sample bin; an adjusting assembly is also arranged between the adjusting platform and the sample platform and is used for adjusting the height of the sample platform; the enrichment assembly is arranged on one side, close to the inlet end of the sample platform, in the detection chamber; a lifting assembly is arranged in the enrichment assembly, a support table is arranged on the lifting assembly, a plurality of manipulator assemblies are arranged on the support table, and enrichment plates are arranged on the manipulator assemblies; a sample pool is arranged on one side of the bracket table close to the ground.

Description

Technical Field

[0001] The utility model relates to the technical field of laser spectrum detection, in particular to a heavy metal detection device for enriched water bodies based on laser spectrum. Background Art

[0002] The discharge of industrial wastewater and agricultural sewage is increasing day by day, and the heavy metal pollution in water bodies is becoming more and more serious. These heavy metals seriously endanger the survival and health of humans and aquatic organisms. Therefore, the detection of heavy metal content in water bodies is of great significance for evaluating water pollution and protecting life and health. By detecting the content of heavy metal elements in water bodies, the level of marine heavy metal pollution can be delineated, providing necessary information for controlling marine heavy metal pollution and removing heavy metals from marine aquatic products.

[0003] However, the existing detection of heavy metals in water bodies requires frequent manual operations, making the detection of heavy metals in water bodies relatively complicated. In addition, the rapid detection method of heavy metals in water bodies has always faced problems such as low stability and low sensitivity, and it is difficult to quickly obtain accurate heavy metal content information directly through laser spectroscopy. Therefore, this application designs a heavy metal detection device for enriched water bodies based on laser spectroscopy to solve the above technical problems. Utility Model Content

[0004] The utility model aims to provide a device for detecting heavy metals in enriched water based on laser spectroscopy to solve the problems existing in the above-mentioned prior art.

[0005] To achieve the above object, the utility model provides the following solution: The utility model provides a heavy metal detection device for enriched water based on laser spectroscopy, comprising:

[0006] A detection chamber, one side of which is provided with a movable window, and both sides of the detection chamber are provided with gas ports, and the two gas ports are provided with gas port components, and the gas port components control the gas flow in the detection chamber;

[0007] A carrier assembly is arranged in the detection chamber, a laser is arranged on the side of the carrier assembly away from the ground, the laser is fixed in the detection chamber, an adjustment platform is included in the carrier assembly, a sample platform is arranged on the side of the adjustment platform away from the ground, a sample bin is arranged on the sample platform, and a spectral assembly is arranged on the side of the sample bin away from the feeding end of the sample platform; an adjustment assembly is also arranged between the adjustment platform and the sample platform, and the adjustment assembly adjusts the height of the sample platform;

[0008] An enrichment component is arranged in the detection chamber on one side close to the feeding end of the sample platform; a lifting component is arranged in the enrichment component, a support table is arranged on the lifting component, a plurality of manipulator components are arranged on the support table, an enrichment plate is arranged on the manipulator component, and the manipulator component controls the movement of the enrichment plate; a sample pool is arranged on the side of the support table close to the ground.

[0009] Preferably, the spectral component comprises:

[0010] A light collector is fixed on a side of the sample chamber away from a feeding end of the sample platform;

[0011] The spectrometer is fixed in the detection chamber and connected to the light receiver through an optical fiber.

[0012] Preferably, the adjustment component comprises:

[0013] A pair of first folding members, a first connecting shaft is disposed between the two first folding members, and the folding ends of the two first folding members are rotatably connected to two ends of the first connecting shaft respectively;

[0014] A pair of second folding members, arranged alternately with the first folding members, a second connecting shaft is arranged between the two second folding members, and the folding ends of the first folding members are rotatably connected to the two ends of the second connecting shaft;

[0015] The rotating screw is arranged on the first connecting shaft and the second connecting shaft and is fixed to the first connecting shaft. The second connecting shaft is provided with a threaded hole, and the rotating screw is threadedly connected to the threaded hole of the second connecting shaft.

[0016] Preferably, the first folding member comprises a first lower connecting rod, one end of the first lower connecting rod is hinged to the adjustment platform, and the other end is hinged to a first upper connecting rod, and the other end of the first upper connecting rod is hinged to the sample platform;

[0017] The second folding member comprises a second lower connecting rod, one end of the second lower connecting rod is hinged to the adjustment platform, the other end of the second lower connecting rod is hinged to a second upper connecting rod, and the other end of the second upper connecting rod is hinged to the sample platform;

[0018] The first folding member also includes an upper connecting rod, one end of which is hinged to the hinged ends of the first lower connecting rod and the first upper connecting rod, and the other end is rotatably connected to the second upper connecting rod; the second folding member also includes a lower connecting rod, one end of which is hinged to the hinged ends of the second lower connecting rod and the second upper connecting rod, and the other end is rotatably connected to the first lower connecting rod.

[0019] Preferably, the lifting assembly comprises:

[0020] A support rod is fixed in the detection chamber, and a fixing plate is fixed at a section away from the ground;

[0021] A lead screw is arranged on the side of the support rod close to the sample platform, one end of which is rotatably connected to the fixed plate, and the other end of which is rotatably connected to the detection chamber; the support platform is slidably connected to the support rod, and the support platform is threadedly connected to the lead screw, and the support platform is slidably connected to the support rod;

[0022] The lifting motor is fixed on the fixing plate, and the output end of the lifting motor is fixed to the lead screw.

[0023] Preferably, the manipulator assembly comprises:

[0024] Move the lead screw to be rotatably connected to the support platform;

[0025] A moving motor is fixed on the support platform, and an output end is fixed to the moving lead screw;

[0026] A moving block, wherein a slide rail is arranged on the support platform, and the moving block is slidably connected to the slide rail; one end of the moving block is also threadedly connected to the moving lead screw;

[0027] A rotating motor is fixed on the side of the moving block away from the moving lead screw. A telescopic cylinder is fixed to the output end of the rotating motor. The movable end of the telescopic cylinder is clamped to the enrichment plate through a clamping piece.

[0028] Preferably, the clamping member comprises:

[0029] A card box is fixed at the movable end of the telescopic cylinder and is provided with a receiving cavity, and the enrichment plate is inserted into the receiving cavity;

[0030] An electromagnet is arranged in the accommodating cavity, and a movable buckle is arranged on one side of the electromagnet. The electromagnet controls the movable buckle to clamp the enrichment plate.

[0031] The utility model discloses the following technical effects:

[0032] The utility model discloses a heavy metal detection device for enriched water bodies based on laser spectroscopy, which is mainly used for semi-automatic analysis of the heavy metal composition and content of water bodies; wherein, only the manual fine-tuning component needs to be used to adjust the sample platform height and add the detected water body to the sample pool, and then the enrichment operation of the water body can be automatically completed through the enrichment component, reducing manual operation; the sample chamber wall is used to prevent the diffusion of impurity particles generated by laser ablation, while improving the plasma signal of the enriched sample to ensure green environmental protection; the spectrum component is used to perform spectral analysis on the products generated by laser ablation, and then analyze the composition and content of heavy metals; the gas port component controls the flow of inlet and outlet gases, accelerates the drying speed of the pole piece on the enrichment plate after enrichment, and ensures that the temperature and humidity environment in the detection room is relatively stable, thereby reducing measurement errors. The utility model has a simple structure and is easy to use, and can realize semi-automatic stable and accurate detection of the heavy metal composition and content of water bodies, realize real-time monitoring of heavy metal pollution in the sea area, and reduce the harm of marine heavy metals to the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 This is a schematic diagram of the indoor structure of the utility model detection room;

[0035] Figure 2 It is a schematic diagram of the position relationship between the movable window and the detection chamber;

[0036] Figure 3 Schematic diagram of the position relationship between the sample platform and the sample pool;

[0037] Figure 4 It is a schematic diagram of the position relationship between the sample platform and the placement block;

[0038] Figure 5 It is a schematic diagram of the position relationship between the support platform and the sample pool;

[0039] Figure 6 for Figure 5 Part A is a partial enlarged view;

[0040] Figure 7 This is a schematic diagram of the position relationship between the power line and the enrichment plate after the metal pole piece is removed;

[0041] Figure 8 This is a full cross-sectional view of the interior of the card box from above;

[0042] Fig. 9 It is a top view of the interior of the enrichment plate;

[0043] Among them, 1. detection chamber; 2. spectrometer; 3. optical fiber; 4. air port; 5. light collector; 6. sample chamber; 7. sample platform; 8. closed door; 9. moving block; 10. slide rail; 11. rotating motor; 12. telescopic cylinder; 13. lead screw; 14. support table; 15. support rod; 16. enrichment plate; 17. locking screw; 18. sample pool; 19. fixing piece; 20. adjustment platform; 21. first lower connecting rod; 22. second upper connecting rod; 23. first upper connecting rod; 24. Two lower connecting rods; 25. Upper connecting rod; 26. Lower connecting rod; 27. First connecting shaft; 28. Second connecting shaft; 29. ​​Rotating screw; 30. Knob; 31. Moving motor; 32. Moving screw; 33. Lifting motor; 34. Limiting groove; 35. Movable window; 36. Handle; 37. Enrichment plate placement block; 38. Card box; 39. Electromagnet; 40. Movable buckle; 41. Closing door motor; 42. Laser; 43. Metal pole piece; 44. Electric wire; 45. Torsion motor. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0046] Reference Figure 1-Figure 9The utility model discloses a heavy metal detection device for enriched water bodies based on laser spectroscopy, comprising: a detection chamber 1, a movable window 35 is arranged on one side, a handle 36 is arranged on the movable window 35, gas ports 4 are also opened on both sides of the detection chamber 1, gas ports 4 are arranged on the two gas ports, and the gas ports assemblies control the gas flow in the detection chamber 1; a carrier assembly is arranged in the detection chamber 1, a laser 42 is arranged on the side of the carrier assembly away from the ground, the laser 42 is fixed in the detection chamber 1, an adjustment platform 20 is included in the carrier assembly, a sample platform 7 is arranged on the side of the adjustment platform 20 away from the ground, and the sample A sample bin 6 is arranged on the platform 7, and a spectral component is arranged on the side of the sample bin 6 away from the feeding end of the sample platform 7; an adjustment component is also arranged between the adjustment platform 20 and the sample platform 7, and the adjustment component adjusts the height of the sample platform 7; an enrichment component is arranged in the detection chamber 1 on the side close to the feeding end of the sample platform 7; a lifting component is arranged in the enrichment component, and a support platform 14 is arranged on the lifting component, and a plurality of manipulator components are arranged on the support platform 14, and an enrichment plate 16 is arranged on the manipulator component, and the manipulator component controls the movement of the enrichment plate 16; a sample pool 18 is arranged on the side of the support platform 14 close to the ground.

[0047] It should be noted that the side material of the sample chamber 6 is composed of an organic glass cover, and the top material of the sample chamber 6 is optical quartz glass; a metal pole piece 43 is fixed on the enrichment plate 16, and the device emits laser light through a laser 42 to the surface of the metal pole piece 43, and ablation pits are generated on the surface and plasma is generated. The plasma light is imaged by the light receiver 5 and then transmitted to the spectrometer 2 by the optical fiber 3 to obtain the spectrum of the plasma. At the same time, the terminal connected to the spectrometer 2 obtains the spot shape of the LED light source, and the elemental composition and content of the sample are calculated by the algorithm model.

[0048] Among them, the air port assembly includes an air pump and an air pump, one of the air ports 4 is installed with an air pump, and the other air port 4 is installed with an air pump. After enrichment, the air pump and the air pump are started to speed up the air circulation in the detection chamber 1, thereby speeding up the drying speed of the enrichment plate 16; a groove corresponding to the sample bin 6 is provided on the sample platform 7, and the sample bin 6 is fixed on the sample platform 7 through the groove, and the sample platform 7 is made of a square plate of stainless steel.

[0049] In addition, the spectral component, lifting component and manipulator component are all connected to an external control panel, and the movement of each component is driven by the control panel. Specifically, the movement state of the corresponding part is set by the control panel, and a suitable movement trajectory of the enrichment plate 16 is designed, so that the device can complete the movement operation of the enrichment plate 16 by itself with less manual operation.

[0050] According to a further optimized solution, the spectral component includes: a light receiver 5 fixed on a side of the sample chamber 6 away from a feeding end of the sample platform 7; a spectrometer 2 fixed in the detection chamber 1 and connected to the light receiver 5 via an optical fiber 3.

[0051] Specifically, the laser is incident on the surface of the metal pole piece, and ablation pits are produced on the surface and plasma is generated, wherein the metal pole piece and the heavy metals enriched on its surface are jointly irradiated by the high temperature of the laser to generate plasma, which is imaged by the light receiver 5 and then transmitted to the spectrometer 2 by the optical fiber 3 to obtain the spectrum of the plasma, and finally the heavy metal elements present in the sample as well as the element composition and content are obtained through the terminal computer.

[0052] A further optimized solution is that the adjustment component includes: a pair of first folding members, a first connecting shaft 27 is arranged between the two first folding members, and the folding ends of the two first folding members are rotatably connected to the two ends of the first connecting shaft 27 respectively; a pair of second folding members, which are staggered with the first folding members, a second connecting shaft 28 is arranged between the two second folding members, and the folding ends of the first folding members are rotatably connected to the two ends of the second connecting shaft 28; a rotating screw 29, which is arranged on the first connecting shaft 27 and the second connecting shaft 28 and is fixed to the first connecting shaft 27, and the second connecting shaft 28 is provided with a threaded hole, and the rotating screw 29 is threadedly connected to the threaded hole of the second connecting shaft 28.

[0053] A further optimized solution is as follows: the first folding member includes a first lower connecting rod 21, one end of the first lower connecting rod 21 is hinged to the adjustment platform 20, and the other end is hinged to the first upper connecting rod 23, and the other end of the first upper connecting rod 23 is hinged to the sample platform 7; the second folding member includes a second lower connecting rod 24, one end of the second lower connecting rod 24 is hinged to the adjustment platform 20, and the other end is hinged to the second upper connecting rod 22, and the other end of the second upper connecting rod 22 is hinged to the sample platform 7; the first folding member also includes an upper connecting rod 25, one end of the upper connecting rod 25 is hinged to the hinged ends of the first lower connecting rod 21 and the first upper connecting rod 23, and the other end is rotatably connected to the second upper connecting rod 22; the second folding member also includes a lower connecting rod 26, one end of the lower connecting rod 26 is hinged to the hinged ends of the second lower connecting rod 24 and the second upper connecting rod 22, and the other end is rotatably connected to the first lower connecting rod 21.

[0054] Among them, the folding angle of the first folding part and the second folding part can be controlled by twisting the knob 30, so as to change the height of the sample platform 7. When it is necessary to cooperate with the irradiation of different laser intensities, the height of the sample platform 7 can be directly changed by twisting the knob 30 to cooperate with the laser 42, so as to improve the monitoring effect; in addition, the twisting knob 30 can also be directly set as a motor, so that the motor output shaft is fixed to the rotating screw 29, and the motor is connected to the control panel, so that the control panel can directly control the lifting and lowering of the adjustment platform 20 through the motor.

[0055] Specifically, the lead screw 29 is rotated to set a half thread, and the threaded part is threadedly connected to the second connecting shaft 28. When the knob 30 is twisted, the first connecting shaft 27 and the second connecting shaft 28 gradually approach each other, so that the first folding part and the second folding part expand, and the sample platform 7 rises accordingly; when twisted in the opposite direction, the sample platform 7 is gradually lowered.

[0056] To further optimize the solution, the lifting assembly includes: a support rod 15, fixed in the detection chamber 1, with a fixed plate fixed at a section away from the ground; a lead screw 13, arranged on the side of the support rod 15 close to the sample platform 7, one end of which is rotatably connected to the fixed plate, and the other end of which is rotatably connected to the detection chamber 1; a bracket table 14 is slidably connected to the support rod 15, and the bracket table 14 is threadedly connected to the lead screw 13, and the bracket table 14 is slidably connected to the support rod 15.

[0057] The lifting motor 33 drives the lead screw 13 to rotate, so that the support platform 14 moves up and down along the support rod 15 .

[0058] A further optimized solution is that the manipulator assembly includes: a moving screw 32, which is rotatably connected to the support table 14; a moving motor 31, which is fixed on the support table 14, and the output end is fixed to the moving screw 32; a moving block 9, on which a slide rail 10 is provided, and the moving block 9 is slidably connected to the slide rail 10; one end of the moving block 9 is also threadedly connected to the moving screw 32; a rotating motor 11, which is fixed on the side of the moving block 9 away from the moving screw 32, and the output end of the rotating motor 11 is fixed with a telescopic cylinder 12, and the movable end of the telescopic cylinder 12 is clamped to the enrichment plate 16 through a clamping piece.

[0059] Specifically, the movable motor 31 controls the movable screw 32 to rotate, so that the movable screw 32 drives the movable block 9 to move horizontally on the slide rail 10, and the rotating motor 11 controls the telescopic cylinder 12 to rotate in the vertical downward direction and the horizontal direction. When the enrichment plate 16 is placed in the sample platform 7, the telescopic cylinder 12 rotates to a horizontal state. At this time, the movable end of the telescopic cylinder 12 extends out, and the enrichment plate 16 can be inserted into the sample platform 7. After the enrichment plate 16 is placed in, the movable end of the telescopic cylinder 12 retracts.

[0060] To further optimize the solution, the card connector includes: a card box 38, which is fixed to the movable end of the telescopic cylinder 12 and has a accommodating cavity, and the enrichment plate 16 is inserted into the accommodating cavity; an electromagnet 39, which is arranged in the accommodating cavity, and a movable buckle 40 is arranged on one side of the electromagnet 39, and the electromagnet 39 controls the movable buckle 40 to clamp the enrichment plate 16.

[0061] Specifically, refer to Figure 6-Figure 7The electromagnet 39 is also connected to the control panel, and the control panel can be used to control whether the electromagnet 39 is powered on to control the movable buckle 40, wherein a spring is also connected between the movable buckle 40 and the electromagnet 39. When the electromagnet 39 is powered on, the electromagnet 39 attracts the movable buckle 40 to clamp the enrichment plate 16. When the electromagnet 39 is powered off, the movable buckle 40 releases the enrichment plate 16 under the action of the spring elastic force, thereby controlling the electromagnet 39 to clamp or loosen the enrichment plate 16. In addition, a groove is provided on one side of the enrichment plate 16, and the groove is adapted to the movable buckle 40 to ensure that when the enrichment plate 16 is clamped, the electromagnet 39 and the movable buckle 40 will not loosen the enrichment plate 16; refer to Figure 7-Figure 9 , the enrichment plate 16 is provided with a conducting wire 44, such as Figure 7 One end of the conducting wire 44 is exposed on the side of the enrichment plate 16 attached to the metal electrode 43. After the enrichment plate 16 is cut, the conducting wire 44 is shaped as follows: Figure 8 As shown, the other end of the power line 44 is connected to the movable buckle 40; when the electromagnet 39 is energized, the enrichment plate 16 is connected to the movable buckle 40, and the movable buckle 40 is directly connected to the control panel through the electromagnet 39 and the overall manipulator assembly, and the locking screw 17 enables the fixing part 19 to press the metal pole piece 43 and the power line 44 tightly. The voltage of the power line 44 is controlled by the control panel and transmitted to the power line 44 through the overall manipulator assembly and the electromagnet 39. During enrichment, the metal pole piece 43 and the power line 44 are energized, and when energized, the metal pole piece 43 can apply voltage and be placed in water at the same time without affecting the voltage applied to the metal pole piece 43; during detection, the metal pole piece 43 and the enrichment plate 16 are separated from the electromagnet 39, and at this time the power line 44 is also disconnected from the movable buckle 40 and the power is cut off.

[0062] In addition, refer to Figure 6-Figure 9The enrichment plate 16 is also provided with a locking screw 17, and a fixing piece 19 is fixed between the locking screw 17 and the enrichment plate 16. The fixing piece 19 is in the form of a thin sheet, and the metal pole piece 43 is fixed in the enrichment plate 16 by the fixing piece 19 and the locking screw 17. The fixing piece 19 presses the pole piece 43 and the enrichment plate 16 by the locking screw 17, and makes the metal pole piece 43 contact with the electric wire 44. It should be noted that the control panel needs to apply different voltages to the two metal pole pieces 43 to ensure that there is a potential difference between the two metal pole pieces 43 during the enrichment process. It should also be noted that when the two enrichment plates 16 are extended into the water, the metal pole pieces 43 on the two enrichment plates 16 enter the water relatively, and a torsion motor is also provided at the end of the telescopic cylinder 12. 45. After the two enrichment plates 16 are extended into the water and the enrichment is completed, the two enrichment plates 16 are lifted up and suspended from the water. At this time, the two torsion motors 45 respectively rotate the two enrichment plates 16 to make the metal pole piece 43 face the sample chamber 6; wherein, the torsion motor 45 is also connected to the operation panel and controlled by the operation panel; in addition, the sample platform 7 is fixed with a closed door motor 41, and the output end of the closed door motor 41 is fixed with the closed door 8. When testing, the closed door 8 needs to be closed; in addition, the sample platform 7 is also provided with an enrichment plate placement block 37, and the enrichment plate placement block 37 is provided with a receiving groove with the same number and size as the enrichment plate 16. After the enrichment plate 16 is placed in the receiving groove, the clamping part releases the enrichment plate 16.

[0063] Working process:

[0064] Before enrichment, debug the equipment, turn on the laser 42 above the detection chamber, adjust the laser energy to be able to penetrate the air and the metal electrode 43 on the enrichment plate 16, connect the computer to observe the spectrometer 2 signal, and turn off the laser 42; open the movable window 35, take out the sample pool 18, fill the sample water to be tested into the sample pool and install it back into the limit groove 34 in the detection chamber 1, take out the enrichment plate 16, and place the required metal electrode 43 tightly on the enrichment plate 16, and then fix it with the fixing piece 19 and the locking screw 17, and install the enrichment plate 16 in the clamping piece at the end of the movable end of the telescopic cylinder 12.

[0065] During enrichment, close the movable window 35, control the moving block 9 to move on the slide rail 10, adjust the position between the enrichment plates 16, control the lifting motor 33 through the control panel to determine the height of the support platform 14 and ensure that the support platform 14 is flush with the sample platform 7, apply voltage to the metal pole piece 43 on the enrichment plate 16 through the control panel, and make the metal pole pieces in the enrichment plate horizontally relative to each other through the twisting motor 45, and then extend the active end of the telescopic cylinder 12 to make the enrichment plate 16 extend into the sample water body for enrichment. After the enrichment is completed, the active end of the telescopic cylinder 12 retracts the enrichment plate 16 to suspend it from the water body, and then starts the air pump and the vacuum pump installed on the two air ports 4, close to one end of the enrichment component to intake air, and the other end to exhaust air to accelerate the drying speed of the metal pole piece 43 on the enrichment plate 16.

[0066] After the electrode is dried, the torsion motor 45 rotates the two enrichment plates 16 respectively so that the metal electrode 43 faces the sample chamber 6, and the closed door 8 next to the sample platform is opened through the control panel. At the same time, the rotating motor 11 drives the telescopic cylinder 12 to rotate so that the telescopic cylinder 12 is horizontal, and then the moving block 9 is controlled to move on the slide rail 10 to make the enrichment plate 16 extend into the sample chamber 6 until it is inserted into the placement groove of the enrichment plate placement block 37, wherein the side of the enrichment plate 16 on which the metal electrode 43 is installed is always facing upwards, and after the enrichment plate 16 is placed in place, the clamping part is released, and the movable end of the telescopic cylinder 12 is retracted. After the movable end of the telescopic cylinder 12 is retracted into place, the closed door is closed.

[0067] During the test, the laser 42 is turned on through the control panel, and the laser is focused and incident on the surface of the metal pole piece 43, and an ablation pit is generated on the surface of the metal pole piece and plasma is generated. The plasma light is imaged by the light receiver 5 and transmitted to the spectrometer 2 through the optical fiber 3, and the spectrometer 2 obtains the spectrum of the plasma. At the same time, the external terminal calculates the elemental composition and content of the sample through the algorithm model.

[0068] During the detection process, the movement trajectory of the enrichment plate 16 is preset through the control panel, and multi-point measurement is performed to realize the automatic movement of the enrichment plate 16 and reduce manual operations.

[0069] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0070] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A device for detecting heavy metals in enriched water based on laser spectroscopy, characterized in that: include: A detection chamber (1) is provided with a movable window (35) on one side, and gas ports (4) are provided on both sides of the detection chamber (1). Gas port components are provided on the two gas ports (4), and the gas port components control the gas flow in the detection chamber (1); A carrier assembly is arranged in the detection chamber (1); a laser (42) is arranged on the side of the carrier assembly away from the ground, and the laser (42) is fixed in the detection chamber (1); the carrier assembly includes an adjustment platform (20); a sample platform (7) is arranged on the side of the adjustment platform (20) away from the ground; a sample chamber (6) is arranged on the sample platform (7); a spectral assembly is arranged on the side of the sample chamber (6) away from the feeding end of the sample platform (7); an adjustment assembly is also arranged between the adjustment platform (20) and the sample platform (7), and the adjustment assembly adjusts the height of the sample platform (7); An enrichment component is arranged in the detection chamber (1) on the side close to the feeding end of the sample platform (7); a lifting component is arranged in the enrichment component, a support platform (14) is arranged on the lifting component, a plurality of manipulator components are arranged on the support platform (14), an enrichment plate (16) is arranged on the manipulator component, and the manipulator component controls the movement of the enrichment plate (16); a sample pool (18) is arranged on the side of the support platform (14) close to the ground.

2. The device for detecting heavy metals in enriched water based on laser spectroscopy according to claim 1, characterized in that: The spectral component includes: A light collector (5) is fixed on a side of the sample chamber (6) away from a feeding end of the sample platform (7); The spectrometer (2) is fixed in the detection chamber (1) and connected to the light receiver (5) via an optical fiber (3).

3. The device for detecting heavy metals in enriched water based on laser spectroscopy according to claim 1, characterized in that: The adjustment component comprises: A pair of first folding members, a first connecting shaft (27) is arranged between the two first folding members, and the folding ends of the two first folding members are respectively rotatably connected to the two ends of the first connecting shaft (27); A pair of second folding members, arranged alternately with the first folding members, a second connecting shaft (28) is arranged between the two second folding members, and the folding ends of the first folding members are rotatably connected to both ends of the second connecting shaft (28); A rotating screw (29) is arranged on the first connecting shaft (27) and the second connecting shaft (28) and is fixed to the first connecting shaft (27). The second connecting shaft (28) is provided with a threaded hole, and the rotating screw (29) is threadedly connected to the threaded hole of the second connecting shaft (28).

4. The device for detecting heavy metals in enriched water based on laser spectroscopy according to claim 3 is characterized in that: The first folding member comprises a first lower connecting rod (21), one end of the first lower connecting rod (21) is hinged to the adjustment platform (20), and the other end is hinged to a first upper connecting rod (23), and the other end of the first upper connecting rod (23) is hinged to the sample platform (7); The second folding member comprises a second lower connecting rod (24), one end of the second lower connecting rod (24) is hinged to the adjustment platform (20), and the other end is hinged to a second upper connecting rod (22), and the other end of the second upper connecting rod (22) is hinged to the sample platform (7); The first folding member also includes an upper connecting rod (25), one end of which is hinged to the hinged ends of the first lower connecting rod (21) and the first upper connecting rod (23), and the other end is rotatably connected to the second upper connecting rod (22); the second folding member also includes a lower connecting rod (26), one end of which is hinged to the hinged ends of the second lower connecting rod (24) and the second upper connecting rod (22), and the other end is rotatably connected to the first lower connecting rod (21).

5. The device for detecting heavy metals in enriched water based on laser spectroscopy according to claim 1, characterized in that: The lifting assembly comprises: A support rod (15) is fixed in the detection chamber (1), and a fixing plate is fixed at a section away from the ground; A lead screw (13) is arranged on a side of the support rod (15) close to the sample platform (7), one end of which is rotatably connected to the fixed plate, and the other end of which is rotatably connected to the detection chamber (1); the support platform (14) is slidably connected to the support rod (15), and the support platform (14) is threadedly connected to the lead screw (13), and the support platform (14) is slidably connected to the support rod (15); A lifting motor (33) is fixed on the fixing plate, and an output end of the lifting motor (33) is fixed to the lead screw (13).

6. The device for detecting heavy metals in enriched water based on laser spectroscopy according to claim 1, characterized in that: The manipulator assembly comprises: A movable lead screw (32) is rotatably connected to the support platform (14); A moving motor (31) is fixed on the support platform (14), and an output end is fixed to the moving lead screw (32); A moving block (9), wherein a slide rail (10) is arranged on the support platform (14), and the moving block (9) is slidably connected to the slide rail (10); one end of the moving block (9) is also threadedly connected to the moving lead screw (32); A rotating motor (11) is fixed on a side of the moving block (9) away from the moving lead screw (32); a telescopic cylinder (12) is fixed to the output end of the rotating motor (11); and a movable end of the telescopic cylinder (12) is clamped to the enrichment plate (16) via a clamping piece.

7. The device for detecting heavy metals in enriched water based on laser spectroscopy according to claim 6, characterized in that: The card connector comprises: A card box (38) is fixed to the movable end of the telescopic cylinder (12) and is provided with a receiving cavity, and the enrichment plate (16) is inserted into the receiving cavity; An electromagnet (39) is arranged in the accommodating cavity, and a movable buckle (40) is arranged on one side of the electromagnet (39). The electromagnet (39) controls the movable buckle (40) to clamp the enrichment plate (16).

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