A heavy metal detection device with quantifiable dosing

Abstract

The utility model belongs to heavy metal detection technical field especially relates to a heavy metal detection device of quantitatively feeding, including feeding frame, the outer wall fixedly connected with pneumatic push rod of feeding frame, the output fixedly connected with lifting frame of pneumatic push rod, both ends of lifting frame are fixedly connected with positioning block, the inner wall of feeding frame is provided with the positioning screw rod, through adjusting the distance of positioning block and its upper adjusting block, the quantitative adjustment of quantitative cylinder suction volume is carried out, the work of pneumatic push rod drives lifting frame to go up, and lifting frame goes up drives piston to slide upwards along quantitative cylinder through connecting rod, and then, the heavy metal material in quantitative material pipe is sucked into quantitative cylinder, then, through adjusting the distance of positioning block and its lower adjusting block, the quantitative adjustment of quantitative cylinder feeding amount is carried out, and the work of pneumatic push rod drives lifting frame to descend, so that heavy metal material in quantitative cylinder is injected into feeding pipe through switch valve, realizes the quantitative feeding operation to heavy metal.

Description

Technical Field

[0001] This utility model belongs to the field of heavy metal detection technology, and in particular relates to a heavy metal detection device that can quantitatively add materials. Background Technology

[0002] Heavy metals such as lead, cadmium, mercury, and arsenic accumulate in the environment around humans due to industrial development. They enter the human body through the atmosphere, water, and food, accumulating in certain organs and causing chronic poisoning, which harms human health. Therefore, heavy metal testing is necessary. Heavy metal testing methods include ultraviolet spectrophotometry, atomic absorption spectrometry, and atomic fluorescence spectrometry.

[0003] For example, patent CN208109701U discloses a heavy metal detection device, which further includes a placement tube (2) and a dark chamber (3). The placement tube (2) is used to place a sampling swab (1), and the bottom of the placement tube (2) is provided with a transparent observation window (2.1). The dark chamber (3) includes a shell (3.1) and a carrier (3.2) provided on the upper part of the shell (3.1). The carrier (3.2) is provided with a rotating ring (4) that can rotate along the carrier (3.2) and is provided with a corresponding spacer (1.6). A breaking structure is provided between the rotating ring (4) and the elastic tube cap (1.3) for breaking the spacer (1.6) so that the reaction reagent (1.4) flows into the reaction tube (1.1) through the through hole (1.5). This utility model provides a heavy metal detection device that allows the reaction reagent to rinse the sample on the cotton swab and enter the reaction tube in a dark environment to ensure accurate test results.

[0004] Existing heavy metal detection devices often result in inconsistent sample loading amounts for each test, leading to significant errors in the detection results. Therefore, we propose a heavy metal detection device with quantitative sample loading capability. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned technical problems by providing a heavy metal detection device that allows for quantitative feeding, thereby avoiding inconsistencies in the amount of heavy metal sample fed each time.

[0006] In view of this, the present invention provides a heavy metal detection device capable of quantitative feeding, comprising a feeding frame, a pneumatic push rod fixedly connected to the outer wall of the feeding frame, a lifting frame fixedly connected to the output end of the pneumatic push rod, positioning blocks fixedly connected to both ends of the lifting frame, a positioning screw provided on the inner wall of the feeding frame, a threaded slider threadedly connected to the outer wall of the positioning screw, an adjusting block fixedly connected to the outer wall of the threaded slider, a connecting rod fixedly connected to the bottom end of the lifting frame, a piston fixedly connected to the bottom end of the connecting rod, a quantitative cylinder fixedly connected to the outer wall of the piston and sealed to the outer wall of the feeding frame, a switching valve provided at the output end of the quantitative cylinder, a quantitative material tube provided on the outer wall of the switching valve, a feeding pipe installed at the output end of the quantitative material tube, a fluorescence detection component fixedly connected to the side wall of the feeding frame, a fluorescence acquisition component provided at the output end of the fluorescence detection component, and a reaction chamber provided at the bottom end of the fluorescence detection component.

[0007] Based on the above structure, the amount of material sucked into the metering cylinder is quantitatively adjusted by adjusting the distance between the positioning block and its upper adjusting block. The pneumatic pusher drives the lifting frame to rise, and the rising lifting frame drives the piston to slide upward along the metering cylinder through the connecting rod, thereby sucking the heavy metal material in the metering tube into the metering cylinder. Then, the amount of material fed into the metering cylinder is quantitatively adjusted by adjusting the distance between the positioning block and its lower adjusting block. The pneumatic pusher drives the lifting frame to fall, so that the heavy metal material in the metering cylinder is injected into the feeding pipe through the switching valve, realizing the quantitative feeding operation of heavy metals.

[0008] Preferably, both the positioning block and the adjusting block are provided in two sets, with the two sets of adjusting blocks located on the upper and lower sides of the positioning block. In this embodiment, by providing two sets of adjusting blocks, it is convenient for the positioning screw to rotate and drive the adjusting block to slide through the threaded slider. By adjusting the distance between the positioning block and its upper adjusting block, the amount of feed into the metering cylinder can be quantitatively adjusted. Similarly, by adjusting the distance between the positioning block and its lower adjusting block, the amount of feed into the metering cylinder can be quantitatively adjusted.

[0009] Preferably, the positioning screw is parallel to the connecting rod. In this embodiment, this helps to improve the stability of the adjustment block's movement and prevents the positioning block and the adjustment block from becoming misaligned.

[0010] Preferably, the lifting frame forms a limiting structure with the feeding frame through the positioning block and the adjusting block. In this embodiment, the amount of feed into the metering cylinder is quantitatively adjusted by adjusting the distance between the positioning block and the upper adjusting block. Similarly, the amount of feed into the metering cylinder is quantitatively adjusted by adjusting the distance between the positioning block and the lower adjusting block.

[0011] Preferably, the outer wall of the feeding tube is provided with an anti-splash screw, and the outer wall of the anti-splash screw is threadedly connected to an adjusting slider. The bottom end of the adjusting slider is screwed to a support rod, and the bottom end of the support rod is screwed to a connecting frame. The outer wall of the connecting frame is fixedly connected to a telescopic tube that passes through the inside of the feeding tube. The bottom end of the telescopic tube is provided with a feeding nozzle. In this embodiment, the rotation of the anti-splash screw drives the adjusting slider to slide. The sliding of the adjusting slider drives the telescopic tube on the outer wall of the connecting frame to slide along the inner wall of the feeding tube through the support rod, bringing the feeding nozzle at the bottom end of the telescopic tube closer to the reaction vessel in the reaction chamber, avoiding a large distance between the reaction vessel and the feeding nozzle, which could cause heavy metal materials to splash.

[0012] Preferably, the connecting frame forms a lifting structure with the feeding tube through the adjusting slider and the support rod. In this embodiment, the adjusting slider slides through the support rod to drive the telescopic tube on the outer wall of the connecting frame to slide along the inner wall of the feeding tube, thereby realizing the sliding operation of the telescopic tube.

[0013] Preferably, the central axis of the telescopic tube coincides with the central axis of the feeding tube. In this embodiment, the telescopic tube slides along the inner wall of the feeding tube, bringing the feeding nozzle at the bottom of the telescopic tube close to the reaction vessel in the reaction chamber, thus preventing heavy metal materials from splashing during feeding.

[0014] The beneficial effects of this utility model are:

[0015] 1. This quantitative feeding heavy metal detection device quantitatively adjusts the intake volume of the metering cylinder by adjusting the distance between the positioning block and its upper adjustment block. The pneumatic pusher drives the lifting frame to rise, and the rising lifting frame drives the piston to slide upward along the metering cylinder through the connecting rod, thereby drawing the heavy metal material in the metering tube into the metering cylinder. Then, by adjusting the distance between the positioning block and its lower adjustment block, the feeding volume of the metering cylinder is quantitatively adjusted. The pneumatic pusher drives the lifting frame to fall, so that the heavy metal material in the metering cylinder is injected into the feeding pipe through the switching valve, realizing the quantitative feeding operation of heavy metals.

[0016] 2. This quantitative feeding heavy metal detection device, by setting up a telescopic tube, the anti-splash screw rotates and drives the adjusting slider to slide. The sliding of the adjusting slider drives the telescopic tube on the outer wall of the connecting frame to slide along the inner wall of the feeding tube through the support rod, so that the feeding nozzle at the bottom of the telescopic tube is close to the reaction vessel in the reaction chamber, avoiding a large distance between the reaction vessel and the feeding nozzle, which would cause heavy metal materials to splash. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the feeding frame structure of this utility model;

[0019] Figure 3This is a schematic diagram of the internal structure of the metering cylinder of this utility model;

[0020] Figure 4 This is a cross-sectional view of the feeding pipe connection of this utility model.

[0021] The markings in the diagram are as follows:

[0022] 1. Feeding frame; 2. Pneumatic push rod; 3. Lifting frame; 4. Positioning block; 5. Positioning screw; 6. Threaded slider; 7. Adjusting block; 8. Connecting rod; 9. Piston; 10. Metering cylinder; 11. Switching valve; 12. Metering tube; 13. Feeding tube; 14. Fluorescence detection component; 15. Fluorescence acquisition component; 16. Reaction chamber; 17. Anti-splash screw; 18. Adjusting slider; 19. Support rod; 20. Connecting frame; 21. Telescopic tube; 22. Feeding nozzle. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.

[0024] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0025] This application discloses a heavy metal detection device capable of quantitative feeding, comprising a feeding frame 1, a pneumatic push rod 2 fixedly connected to the outer wall of the feeding frame 1, a lifting frame 3 fixedly connected to the output end of the pneumatic push rod 2, positioning blocks 4 fixedly connected to both ends of the lifting frame 3, a positioning screw 5 provided on the inner wall of the feeding frame 1, a threaded slider 6 threadedly connected to the outer wall of the positioning screw 5, an adjusting block 7 fixedly connected to the outer wall of the threaded slider 6, a connecting rod 8 fixedly connected to the bottom end of the lifting frame 3, a piston 9 fixedly connected to the bottom end of the connecting rod 8, a quantitative cylinder 10 sealed to the outer wall of the piston 9 and fixedly connected to the outer wall of the feeding frame 1, a switching valve 11 provided at the output end of the quantitative cylinder 10, a quantitative material tube 12 provided on the outer wall of the switching valve 11, a feeding tube 13 installed at the output end of the quantitative material tube 12, a fluorescence detection component 14 fixedly connected to the side wall of the feeding frame 1, a fluorescence acquisition component 15 provided at the output end of the fluorescence detection component 14, and a reaction chamber 16 provided at the bottom end of the fluorescence detection component 14.

[0026] Based on the above structure, the suction volume of the metering cylinder 10 is quantitatively adjusted by adjusting the distance between the positioning block 4 and its upper adjusting block 7. The pneumatic push rod 2 drives the lifting frame 3 to rise. The rise of the lifting frame 3 drives the piston 9 to slide upward along the metering cylinder 10 through the connecting rod 8, thereby sucking the heavy metal material in the metering tube 12 into the metering cylinder 10. Then, the feeding amount of the metering cylinder 10 is quantitatively adjusted by adjusting the distance between the positioning block 4 and its lower adjusting block 7. The pneumatic push rod 2 drives the lifting frame 3 to fall, so that the heavy metal material in the metering cylinder 10 is injected into the feeding tube 13 through the switching valve 11, realizing the quantitative feeding operation of heavy metals.

[0027] In one embodiment, both the positioning block 4 and the adjusting block 7 are provided in two sets, with the two sets of adjusting blocks 7 located on the upper and lower sides of the positioning block 4.

[0028] In this embodiment, by setting two sets of adjusting blocks 7, the positioning screw 5 can rotate and drive the adjusting block 7 to slide through the threaded slider 6. By adjusting the distance between the positioning block 4 and its upper adjusting block 7, the intake amount of the metering cylinder 10 can be quantitatively adjusted. Similarly, by adjusting the distance between the positioning block 4 and its lower adjusting block 7, the feeding amount of the metering cylinder 10 can be quantitatively adjusted.

[0029] In one embodiment, the positioning screw 5 is parallel to the connecting rod 8.

[0030] In this embodiment, it is beneficial to improve the stability of the movement of the adjusting block 7 and avoid misalignment between the positioning block 4 and the adjusting block 7.

[0031] In one embodiment, the lifting frame 3 forms a limiting structure with the feeding frame 1 through the positioning block 4 and the adjusting block 7.

[0032] In this embodiment, the intake amount of the metering cylinder 10 is quantitatively adjusted by adjusting the distance between the positioning block 4 and its upper adjusting block 7. Similarly, the feeding amount of the metering cylinder 10 is quantitatively adjusted by adjusting the distance between the positioning block 4 and its lower adjusting block 7.

[0033] In one embodiment, the outer wall of the feeding pipe 13 is provided with a splash-proof screw 17, the outer wall of the splash-proof screw 17 is threaded with an adjusting slider 18, the bottom end of the adjusting slider 18 is screwed with a support rod 19, the bottom end of the support rod 19 is screwed with a connecting frame 20, the outer wall of the connecting frame 20 is fixedly connected with a telescopic tube 21 that passes through the inside of the feeding pipe 13, and the bottom end of the telescopic tube 21 is provided with a feeding nozzle 22.

[0034] In this embodiment, the anti-splash screw 17 rotates to drive the adjusting slider 18 to slide. The adjusting slider 18 slides through the support rod 19 to drive the telescopic tube 21 on the outer wall of the connecting frame 20 to slide along the inner wall of the feeding tube 13, so that the feeding nozzle 22 at the bottom of the telescopic tube 21 is close to the reaction vessel in the reaction chamber 16, so as to avoid the reaction vessel and the feeding nozzle 22 being too far apart, which would cause heavy metal materials to splash.

[0035] In one embodiment, the connecting frame 20 forms a lifting structure with the feeding tube 13 by adjusting the slider 18 and the support rod 19.

[0036] In this embodiment, the adjusting slider 18 slides through the support rod 19 to drive the telescopic tube 21 on the outer wall of the connecting frame 20 to slide along the inner wall of the feeding tube 13, thereby realizing the sliding operation of the telescopic tube 21.

[0037] In one embodiment, the central axis of the telescopic tube 21 coincides with the central axis of the feeding tube 13.

[0038] In this embodiment, the telescopic tube 21 slides along the inner wall of the feeding tube 13, bringing the feeding nozzle 22 at the bottom of the telescopic tube 21 close to the reaction vessel in the reaction chamber 16, thus preventing heavy metal materials from splashing during feeding.

[0039] In this embodiment of the heavy metal detection device with quantitative feeding capability, the first step is to quantitatively adjust the intake volume of the quantitative cylinder 10. The operator rotates the positioning screw 5, which drives the adjusting block 7 to slide through the threaded slider 6. By adjusting the distance between the positioning block 4 and the upper adjusting block 7, the intake volume of the quantitative cylinder 10 is quantitatively adjusted. Similarly, by adjusting the distance between the positioning block 4 and the lower adjusting block 7, the feeding volume of the quantitative cylinder 10 is quantitatively adjusted.

[0040] Next, the pneumatic push rod 2 drives the lifting frame 3 to rise. The rise of the lifting frame 3 drives the piston 9 to slide upward along the metering cylinder 10 through the connecting rod 8, thereby drawing the heavy metal material in the metering tube 12 into the metering cylinder 10. Then, the pneumatic push rod 2 drives the lifting frame 3 to fall, so that the heavy metal material in the metering cylinder 10 is injected into the feeding tube 13 through the switching valve 11, realizing the quantitative feeding operation of heavy metals.

[0041] Next, the inspector rotates the anti-splash screw 17. The rotation of the anti-splash screw 17 causes the adjusting slider 18 to slide. The sliding of the adjusting slider 18, through the support rod 19, causes the telescopic tube 21 on the outer wall of the connecting frame 20 to slide along the inner wall of the feeding tube 13, bringing the feeding nozzle 22 at the bottom of the telescopic tube 21 closer to the reaction vessel in the reaction chamber 16, so as to avoid the reaction vessel and the feeding nozzle 22 being too far apart, which would cause heavy metal materials to splash.

[0042] Finally, the fluorescence detection component 14 excites the heavy metal material. After the heavy metal atoms are excited, they emit fluorescence of a specific wavelength. The fluorescence acquisition component 15 collects the fluorescence intensity, and the content of heavy metals can be determined by measuring the fluorescence intensity.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heavy metal detection device capable of quantitative feeding, characterized in that, The system includes a feeding frame (1), a pneumatic push rod (2) fixedly connected to the outer wall of the feeding frame (1), a lifting frame (3) fixedly connected to the output end of the pneumatic push rod (2), positioning blocks (4) fixedly connected to both ends of the lifting frame (3), a positioning screw (5) provided on the inner wall of the feeding frame (1), a threaded slider (6) threadedly connected to the outer wall of the positioning screw (5), an adjusting block (7) fixedly connected to the outer wall of the threaded slider (6), a connecting rod (8) fixedly connected to the bottom end of the lifting frame (3), and a piston (9) fixedly connected to the bottom end of the connecting rod (8). The outer wall of the piston (9) is sealed with a metering cylinder (10) which is fixedly connected to the outer wall of the feeding frame (1). The output end of the metering cylinder (10) is provided with a switching valve (11). The outer wall of the switching valve (11) is provided with a metering tube (12). The output end of the metering tube (12) is provided with a feeding tube (13). The side wall of the feeding frame (1) is fixedly connected with a fluorescence detection component (14). The output end of the fluorescence detection component (14) is provided with a fluorescence acquisition component (15). The bottom end of the fluorescence detection component (14) is provided with a reaction chamber (16).

2. The heavy metal detection device with quantitative feeding capability according to claim 1, characterized in that: The positioning block (4) and the adjusting block (7) are each provided in two sets, and the two sets of adjusting blocks (7) are located on the upper and lower sides of the positioning block (4).

3. The heavy metal detection device with quantitative feeding capability according to claim 1, characterized in that: The positioning screw (5) is parallel to the connecting rod (8).

4. The heavy metal detection device with quantitative feeding capability according to claim 1, characterized in that: The lifting frame (3) forms a limiting structure with the feeding frame (1) through the positioning block (4) and the adjusting block (7).

5. The heavy metal detection device with quantitative feeding capability according to claim 1, characterized in that: The outer wall of the feeding tube (13) is provided with a splash-proof screw (17), and the outer wall of the splash-proof screw (17) is threaded with an adjusting slider (18). The bottom end of the adjusting slider (18) is screwed with a support rod (19), and the bottom end of the support rod (19) is screwed with a connecting frame (20). The outer wall of the connecting frame (20) is fixedly connected with a telescopic tube (21) that penetrates the inside of the feeding tube (13), and the bottom end of the telescopic tube (21) is provided with a feeding nozzle (22).

6. The heavy metal detection device with quantitative feeding capability according to claim 5, characterized in that: The connecting frame (20) forms a lifting structure with the feeding pipe (13) through the adjusting slider (18) and the support rod (19).

7. The heavy metal detection device with quantitative feeding capability according to claim 5, characterized in that: The central axis of the telescopic tube (21) coincides with the central axis of the feeding tube (13).

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