Ecological sludge heavy metal detection equipment

Abstract

The utility model discloses an ecological sludge heavy metal detection equipment, including spectrophotometer main part, the front end surface of spectrophotometer main part is provided with detection room, and the top of detection room is provided with first machine cover, second machine cover and third machine cover, be provided with sampling mechanism on second machine cover, be provided with sample changing mechanism on third machine cover, and be provided with sample suction pipe in detection room, and sampling mechanism includes mounting seat, first sliding block, screw rod, first motor and second sliding block, and mounting seat fixed mounting is in the back of second machine cover, and screw rod is installed on mounting seat and is rotatably connected with it, and first motor fixed mounting is on mounting seat and drives screw rod, and first sliding block is installed on screw rod and is threadedly connected with it. The utility model has the advantages of automatic operation, accurate positioning and convenient maintenance, solves the problem that manual switching sample in traditional detection process is easy to cause confusion pollution, and the operation risk is high and the efficiency is low.

Description

Technical Field

[0001] This utility model relates to the field of atomic absorption spectrophotometer technology, specifically to a heavy metal detection device for ecological silt. Background Technology

[0002] As an important component of bottom sediments in natural water bodies, the heavy metal content of ecological silt directly affects water quality and the safety of the surrounding ecological environment. Traditional heavy metal detection in silt is usually performed using atomic absorption spectrophotometry.

[0003] In the past, technicians had to manually switch between different types of liquid samples (such as standard solutions and test solutions). This process was prone to sample confusion or contamination and also posed a high operational risk, such as spilling samples or misoperation leading to inaccurate data. In addition, the process of manually switching samples was cumbersome and time-consuming, which greatly limited the efficiency of the testing work. Therefore, an ecological sludge heavy metal testing device is needed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an ecological sludge heavy metal detection device, which has the advantages of automated operation, precise positioning and easy maintenance, and solves the problems of easy confusion and contamination, high operational risks and low efficiency caused by manual sample switching in traditional detection processes.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an ecological sludge heavy metal detection device, comprising a spectrophotometer body, a detection chamber provided on the front end face of the spectrophotometer body, a first cover, a second cover and a third cover provided on the top of the detection chamber, a sampling mechanism provided on the second cover, a sample changing mechanism provided on the third cover, and a sampling tube provided in the detection chamber;

[0006] The sampling mechanism includes a mounting base, a first slider, a lead screw, a first motor, and a second slider. The mounting base is fixedly installed on the back of the second cover. The lead screw is mounted on the mounting base and rotatably connected to it. The first motor is fixedly installed on the mounting base to drive the lead screw. The first slider is mounted on the lead screw and threadedly connected to it. The second slider is movably installed on the first slider. The sampling tube is detachably installed on the second slider.

[0007] As a preferred embodiment of the ecological sludge heavy metal detection device of this utility model, the upper end face of the first slider is provided with a sliding rod, the second slider is provided with a sliding sleeve that cooperates with the sliding rod, the second cover is provided with a wire groove and an arc groove, the second slider passes through the arc groove and slides in connection with the second cover, and a limit strip is provided on the outer side of the sliding rod to prevent the sliding sleeve from rotating.

[0008] As a preferred embodiment of the ecological sludge heavy metal detection device of this utility model, the second slider is provided with a slot for engaging with the fixed sampling tube.

[0009] As a preferred embodiment of the ecological sludge heavy metal detection device of this utility model, the sample changing mechanism includes a turntable and a second motor. The turntable is mounted on the upper surface of the third cover and rotatably connected thereto. The second motor is fixedly mounted on the third cover to drive the turntable.

[0010] As a preferred embodiment of the ecological sludge heavy metal detection device of this utility model, the third cover is provided with a first positioning groove, and the turntable is uniformly provided with second positioning grooves.

[0011] In a preferred embodiment of the ecological sludge heavy metal detection device of this utility model, the second slider is provided with a rotatably connected roller.

[0012] As a preferred embodiment of the ecological sludge heavy metal detection device of this utility model, the side end faces of the first cover, the second cover, and the second cover are all provided with damping shafts that are rotatably connected to the main body of the spectrophotometer.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model achieves fully automated operation of the detection process through the synergistic effect of the lead screw drive mechanism and the turntable sample changing structure. The first motor drives the lead screw to precisely control the horizontal movement of the sample tube, enabling it to automatically switch between the standard solution and the test solution, avoiding the problem of sample bottles being easily tipped over in traditional manual operation. At the same time, the turntable driven by the second motor rotates precisely through the preset positioning groove, realizing the rapid rotation of multiple sets of test samples. This design minimizes manual intervention. After a single test, the equipment automatically completes calibration reset and new sample recall, significantly improving the efficiency of continuous testing, and is especially suitable for heavy metal screening of large batches of sludge samples.

[0015] 2. This utility model adopts a composite positioning system of sliding rod limiting, arc groove guiding and slot fixing, which effectively solves the problem of sample tube positioning deviation. The second slider slides along the trajectory of the arc groove, so that the sample tube hangs naturally in the vertical direction. With the help of the limiting strip on the outside of the sliding rod to suppress rotational offset, it ensures that the sample tube is accurately inserted into reagent bottles of different heights. The adjustable slot design further adapts to the length of the sample tube and avoids collision or suspended sampling caused by differences in bottle mouth position. The introduction of the roller assembly greatly reduces mechanical friction and makes the movement process smoother and more stable. This series of designs achieves three-dimensional precise positioning in the spatial dimension, which significantly improves the sampling success rate and the consistency of test data. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a top view of the present invention;

[0018] Figure 3 For the present utility model Figure 2 Sectional view of AA in the middle;

[0019] Figure 4 For the present utility model Figure 3 Enlarged view at point B in the middle;

[0020] Figure 5 This is a schematic diagram showing the cooperative state of the sampling mechanism and the sample changing mechanism of this utility model.

[0021] In the diagram: 1. Spectrophotometer body; 101. Detection chamber; 102. First cover; 103. Second cover; 1031. Threading groove; 1032. Arc groove; 104. Third cover; 1041. First positioning groove; 105. Sampling tube; 106. Damping shaft; 2. Sampling mechanism; 201. Mounting base; 202. First slider; 2021. Sliding rod; 203. Lead screw; 204. Second slider; 2041. Sliding sleeve; 2042. Slot; 2043. Roller; 205. First motor; 3. Sample changing mechanism; 301. Turntable; 3011. Second positioning groove; 302. Second motor. Detailed Implementation

[0022] Please see Figures 1-5 An ecological sludge heavy metal detection device includes a spectrophotometer body 1, a detection chamber 101 is provided on the front end of the spectrophotometer body 1, a first cover 102, a second cover 103 and a third cover 104 are provided on the top of the detection chamber 101, a sampling mechanism 2 is provided on the second cover 103, a sample changing mechanism 3 is provided on the third cover 104, and a sampling tube 105 is provided inside the detection chamber 101.

[0023] The sampling mechanism 2 includes a mounting base 201, a first slider 202, a lead screw 203, a first motor 205, and a second slider 204. The mounting base 201 is fixedly mounted on the back of the second cover 103. The lead screw 203 is mounted on the mounting base 201 and rotatably connected to it. The first motor 205 is fixedly mounted on the mounting base 201 to drive the lead screw 203. The first slider 202 is mounted on the lead screw 203 and threadedly connected to it. The second slider 204 is movably mounted on the first slider 202. The sampling tube 105 is detachably mounted on the second slider 204.

[0024] The first motor 205 drives the lead screw 203 to rotate, thereby causing the first slider 202 to slide along the lead screw 203, which in turn drives the sample tube 105 to move left and right, switching back and forth between the standard solution and the test solution, thus avoiding the risk of spilling the sample bottle due to manual switching.

[0025] Furthermore, the upper end face of the first slider 202 is provided with a sliding rod 2021, the second slider 204 is provided with a sliding sleeve 2041 that cooperates with the sliding rod 2021, the second cover 103 is provided with a wire groove 1031 and an arc groove 1032, the second slider 204 passes through the arc groove 1032 and is slidably connected to the second cover 103, and a limit strip is provided on the outer side of the sliding rod 2021 to prevent the sliding sleeve 2041 from rotating.

[0026] When the first slider 202 drives the second slider 204 to move horizontally, the second slider 204 slides along the arc groove 1032, making it easier for the pipette 105 to enter the reagent bottle and preventing the pipette 105 from getting stuck on the outside of the reagent bottle.

[0027] Furthermore, the second slider 204 is provided with a slot 2042 that engages with the fixed sample tube 105.

[0028] The sampling tube 105 is fixed by the slot 2042, which makes it easy to adjust the downward length of the sampling tube 105 so that the sampling tube 105 can be accurately inserted into the sampling bottle.

[0029] Furthermore, the sample changing mechanism 3 includes a turntable 301 and a second motor 302. The turntable 301 is mounted on the upper surface of the third cover 104 and rotatably connected thereto. The second motor 302 is fixedly mounted on the third cover 104 to drive the turntable 301.

[0030] The reagent bottle to be tested is placed on the turntable 301, and the turntable 301 is rotated by the motor to replace the reagent bottle, and then each sample is quickly tested.

[0031] Furthermore, the third cover 104 is provided with a first positioning groove 1041, and the turntable 301 is provided with a second positioning groove 3011 evenly.

[0032] The standard solution sample is placed in the first positioning groove 1041, and the test solution sample is placed in the second positioning groove 3011 in sequence, so that the sampling mechanism 2 can drive the pipette 105 to precisely match the standard solution reagent bottle and the test solution reagent bottle. After each test solution is tested, the sampling mechanism 2 drives the pipette 105 to move back to the standard solution sample bottle. Then the sample changing mechanism 3 rotates 90 degrees to change a set of sample reagent bottles, and then the sampling mechanism 2 drives the pipette 105 to move back into the sample bottle for sampling and testing.

[0033] Furthermore, the second slider 204 is provided with a rotatably connected roller 2043.

[0034] The roller 2043 reduces the friction between the second slider 204 and the arc groove 1032, thereby improving the smoothness of the sliding of the second slider 204 and reducing the wear of the second slider 204, thus extending the service life of the equipment.

[0035] Furthermore, the side end faces of the first cover 102, the second cover 103, and the second cover 103 are all provided with damping shafts 106 that are rotatably connected to the spectrophotometer body 1.

[0036] The rotating connection of the first cover 102, the second cover 103, and the third cover 104 allows them to be flipped open outwards, facilitating the maintenance of the equipment inside the testing chamber 101. At the same time, when not in use, they can be closed onto the testing chamber 101 to prevent dust from settling inside.

[0037] When using this device, firstly, open the third cover 104 and place the standard solution sample in the first positioning groove 1041 on the third cover 104. Then, place the test solution sample in the second positioning groove 3011 of the turntable 301. Start the device. At this time, the second motor 302 drives the turntable 301 to rotate, rotating the reagent bottle containing the test solution to the appropriate position. Next, the first motor 205 drives the lead screw 203 to rotate. The rotation of the lead screw 203 causes the first slider 202 to slide along the lead screw 203. The first slider 202 drives the second slider 204 to move horizontally through the slide rod 2021 and the sliding sleeve 2041. The second slider 204 slides through the arc groove 1032, adjusting the droop length of the pipette 105 so that the pipette 105 can be accurately... To draw standard solution into the standard solution bottle, the first motor 205 rotates forward, moving the pipette 105 above the first positioning groove 1041. Standard solution is drawn to rinse and calibrate the tubing. After rinsing, the first motor 205 rotates, and the pipette 105 moves to the top of the test solution bottle on the turntable 301. Because the second slider 204 slides along the arc groove 1032, the pipette 105 can more easily enter the test solution bottle to draw the test solution. After each test, the pipette 105 moves back to the standard solution sample bottle for tubing rinsing. Then, the second motor 302 rotates the turntable 301 90 degrees to replace a set of sample reagent bottles, and the above sampling and testing process is repeated. This cycle allows for rapid testing of various samples.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heavy metal detection device for ecological sludge, comprising a spectrophotometer body (1), characterized in that: The front end of the spectrophotometer body (1) is provided with a detection chamber (101). The top of the detection chamber (101) is provided with a first cover (102), a second cover (103) and a third cover (104). The second cover (103) is provided with a sampling mechanism (2), the third cover (104) is provided with a sample changing mechanism (3), and the detection chamber (101) is provided with a sample suction tube (105). The sampling mechanism (2) includes a mounting base (201), a first slider (202), a lead screw (203), a first motor (205), and a second slider (204). The mounting base (201) is fixedly mounted on the back of the second cover (103). The lead screw (203) is mounted on the mounting base (201) and rotatably connected thereto. The first motor (205) is fixedly mounted on the mounting base (201) to drive the lead screw (203). The first slider (202) is mounted on the lead screw (203) and threadedly connected thereto. The second slider (204) is movably mounted on the first slider (202). The sampling tube (105) is detachably mounted on the second slider (204).

2. The heavy metal detection equipment for ecological sludge as described in claim 1, characterized in that: The upper end face of the first slider (202) is provided with a sliding rod (2021), the second slider (204) is provided with a sliding sleeve (2041) that cooperates with the sliding rod (2021), the second cover (103) is provided with a wire groove (1031) and an arc groove (1032), and the second slider (204) passes through the arc groove (1032) and is slidably connected to the second cover (103).

3. The heavy metal detection equipment for ecological sludge as described in claim 1, characterized in that: The second slider (204) is provided with a slot (2042) for engaging with the fixed sample tube (105).

4. The heavy metal detection equipment for ecological sludge as described in claim 1, characterized in that: The sample changing mechanism (3) includes a turntable (301) and a second motor (302). The turntable (301) is mounted on the upper surface of the third cover (104) and rotatably connected thereto. The second motor (302) is fixedly mounted on the third cover (104) to drive the turntable (301).

5. The heavy metal detection equipment for ecological sludge as described in claim 4, characterized in that: The third cover (104) is provided with a first positioning groove (1041), and the turntable (301) is provided with a second positioning groove (3011) evenly.

6. The heavy metal detection equipment for ecological sludge as described in claim 1, characterized in that: The second slider (204) is provided with a rotatably connected roller (2043).

7. The heavy metal detection equipment for ecological sludge as described in claim 1, characterized in that: The first cover (102), the second cover (103), and the side end face of the second cover (103) are all provided with a damping shaft (106) that is rotatably connected to the spectrophotometer body (1).

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