Detection device for simulating and researching pH value of soil pollution

Abstract

The utility model discloses a soil pollution simulation research pH value detection device which comprises a detection box, a detection cavity is formed in the detection box, clamping grooves are formed in the bottom of the detection cavity in a bilateral symmetry mode, sample cylinders are assembled in the clamping grooves, a driving mechanism is fixedly assembled on the top of the detection box, a pH value detection probe is fixedly assembled in an installation frame, and the pH value detection probe is fixedly assembled in the installation frame. Numerical value displays are fixedly assembled on the top of the detection box in a bilateral symmetry manner. The cover plate can effectively seal the sample cylinders in the testing process, the whole operation process is simpler and more convenient, so that the efficiency of position transfer between sample soil and the testing device in the experiment process is improved, pH value testing is performed on the sample cylinders on the two sides at a time, the pH value detection efficiency of the soil can be effectively improved, and the detection time is shortened. And data can be better provided for research on the relationship between the pH value of the soil and the pollution degree of pollutants in the soil.

Description

Technical Field

[0001] The utility model relates to the technical field of pH value detection, in particular to a pH value detection device for soil pollution simulation research. Background Art

[0002] Soil pollutants can be roughly divided into two categories: inorganic pollutants and organic pollutants. Inorganic pollutants mainly include acids, alkalis, heavy metals, salts, compounds of radioactive elements cesium and strontium, compounds containing arsenic, selenium, and fluorine. Organic pollutants mainly include organic pesticides, phenols, cyanides, petroleum, synthetic detergents, 3,4-benzopyrene, and harmful microorganisms brought by urban sewage, sludge, and manure. Cadmium is a common pollutant in polluted soil. In the relevant research on cadmium and soil pollution, it was found that the degree of cadmium pollution in the soil has a certain relationship with the pH value of the soil. If further research is needed to demonstrate and explore the threshold of the influence of soil pH on its internal pollutants, a large number of experiments are required. When the existing experimental equipment tests the pH value of the soil, most of them can only test a single sample soil at a time. Not only is the efficiency of the soil pH test relatively low, but it is also inconvenient to transfer the sample soil between the test machine during the test. To this end, we propose a detection device for soil pollution simulation research pH value. Utility Model Content

[0003] The purpose of the utility model is to provide a detection device for pH value of soil pollution simulation research to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a detection device for soil pollution simulation research pH value, comprising a detection box, a detection cavity is provided in the detection box, a card slot is provided at the bottom of the detection cavity in a left-right symmetrical manner, a sample tube is installed in the card slot, a driving mechanism is fixedly installed on the top of the detection box, detection holes are provided on the top of the detection box in a left-right symmetrical distribution, the detection box is equipped with a mounting frame in a left-right symmetrical distribution through the driving mechanism, a pH value detection probe is fixedly installed in the mounting frame, a numerical display is fixedly installed on the top of the detection box in a left-right symmetrical manner, and the pH value detection probe is electrically connected to the numerical display.

[0005] Preferably, the driving mechanism includes a fixed frame, which is fixedly mounted on the top of the detection box, a driving motor is embedded in the top of the fixed frame, a screw rod is rotatably connected inside the fixed frame, the output end of the driving motor is fixedly connected to the top of the screw rod, a lifting block threadedly connected to the screw rod is slidably connected inside the fixed frame, and the mounting frame is fixedly mounted on the left and right side walls of the lifting block, respectively.

[0006] Preferably, auxiliary fixing blocks are fixedly mounted on the bottom of the inner cavity of the detection cavity, and the auxiliary fixing blocks are evenly distributed in a circle around the center of the card slot.

[0007] Preferably, the sample cylinder comprises a cylinder body, a side wall of the cylinder body is provided with a slot, a cover plate is inserted into the slot, and a rubber sealing insert ring is embedded and installed at the center of the cover plate.

[0008] Preferably, a handle block is integrally formed on the side wall of the cover plate, and a handle frame is fixedly connected to the side wall of the cylinder.

[0009] Compared with the prior art, the utility model has the following beneficial effects: a detection device for pH value of soil pollution simulation research, firstly, the device improves the sample cylinder for storing soil, adopts the method of mutual cooperation between the cover plate and the cylinder body, so as to facilitate the addition or removal of the soil to be tested into or out of the sample cylinder, and the sample cylinder can be effectively sealed during the test by the cover plate, and the overall operation process is simpler and more convenient, so as to improve the efficiency of position transfer between the sample soil and the test device during the experiment;

[0010] The device adopts a driving mechanism to synchronously drive the pH detection probes on both sides to move synchronously, so that the pH detection probes on both sides can be synchronously inserted into the sample tube below, and the pH value of the soil in the sample tube is detected, and the measured data is displayed through a numerical display. The pH value test of the sample tubes on both sides at one time can effectively improve the efficiency of soil pH detection, and better provide data for the study of the relationship between the pH value of the soil and the degree of pollution of pollutants in the soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional diagram of the utility model.

[0012] Figure 2 It is a structural schematic diagram of the utility model.

[0013] Figure 3 The utility model is a schematic diagram of the assembly structure of the sample tube and the card slot.

[0014] Figure 4 It is a structural schematic diagram of the sample tube of the utility model.

[0015] In the figure: 1. detection box; 2. detection chamber; 3. card slot; 4. sample tube; 41. cylinder; 42. slot; 43. cover plate; 44. handle block; 45. rubber sealing insert; 46. handle frame; 5. driving mechanism; 51. fixing frame; 52. driving motor; 53. screw rod; 54. lifting block; 55. controller; 6. detection hole; 7. mounting frame; 8. pH detection probe; 9. numerical display; 10. auxiliary fixing block. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0017] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The utility model provides a technical solution: a detection device for soil pollution simulation research pH value, including a detection box 1, the inner cavity of the detection box 1 is provided with a detection cavity 2, the detection cavity 2 is symmetrically provided with card slots 3 on the left and right, and a sample tube 4 is fixed in the card slot 3, and the soil that needs to be tested for pH value is contained through the sample tube 4.

[0018] A driving mechanism 5 is fixedly mounted on the top of the detection box 1, and a detection hole 6 connected to the detection chamber 2 is opened on the surface of the detection box 1. The driving mechanism 5 includes a fixing frame 51, a driving motor 52 is embedded and installed on the top of the fixing frame 51, and a screw rod 53 is rotatably connected to the inner cavity of the fixing frame 51. The output end of the driving motor 52 is fixedly connected to the top of the screw rod 53, and the screw rod 53 can be driven to rotate inside the fixing frame 51 by the driving motor 52. The outer wall of the screw rod 53 is sleeved with a lifting block 54 screwed thereto by a thread. The screw rod 53 is driven by the driving motor 52 to rotate forward or reverse, and the height position of the lifting block 54 in the fixing frame 51 is controlled. The left and right side walls of the lifting block 54 are respectively fixedly connected with mounting frames 7, and the mounting frame 7 is used for installing and fixing a pH value detection probe 8. The position of the pH value detection probe 8 corresponds to the position of the detection hole 6 and the sample tube 4. When the lifting block 54 moves downward, the pH value detection probe 8 is inserted into the sample tube 4, and the pH value of the soil in the sample tube 4 can be detected;

[0019] The driving motor 52 is a pulse stepping motor, which is electrically connected to an external power source and a controller 55. The controller 55 is fixedly mounted on the side wall of the detection box 1. The controller 55 can send a pulse signal to the driving motor 52 to control the output end of the driving motor 52 to rotate forward or reverse.

[0020] The top of the detection box 1 is symmetrically fixed with a numerical display 9 on the left and right sides. The pH value detection probe 8 is electrically connected to the external power supply and the numerical display 9. The numerical display 9 is electrically connected to the external power supply. Each numerical display 9 matches the pH value detection probe 8 at its corresponding position and displays the pH value detected by the pH value detection probe 8 at its corresponding position.

[0021] like Figure 3As shown in the figure, an auxiliary fixing block 10 is welded and fixed at the bottom of the inner cavity of the detection box 1. The auxiliary fixing blocks 10 are evenly distributed in a circle around the center of the card slot 3. By providing the auxiliary fixing blocks 10, the stability of the sample tube 4 being fixed in the card slot 3 is increased when the pH value detection probe 8 is inserted into the sample tube 4.

[0022] like Figure 4 As shown in the figure, the sample cylinder 4 includes a cylinder body 41, a slot 42 is provided on the side wall of the cylinder body 41, a cover plate 43 for closing the cylinder body 41 is inserted into the slot 42, and a handle block 44 is integrally formed on the side wall of the cover plate 43. The handle block 44 is provided to facilitate the insertion or removal of the cover plate 43 from the slot 42. The cylinder body 41 and the cover plate 43 are fixed in a plug-in manner, which is convenient for adding or removing the sample soil for testing into the cylinder body 41. The cover plate 43 is used to close the cylinder body 41, and the center of the cover plate 43 is embedded with a A rubber sealing insert 45 is installed, and a plurality of groups of tightly fitting triangular rubber baffles are arranged around the inner circumferential wall inside the rubber sealing insert 45. The rubber sealing insert 45 can be arranged to scrape off the soil stuck to the pH value detection probe 8 when the pH value detection probe 8 is moved out of the cylinder 41, so as to prevent the pH value detection probe 8 from carrying the soil and falling into the detection cavity 2 during the upward movement of the pH value detection probe 8. A handle frame 46 is welded and fixed to the side wall of the cylinder 41, and the handle frame 46 is arranged to facilitate the holding and movement of the cylinder 41.

[0023] Working principle: This device is suitable for studying the relationship between the pH value of soil in the laboratory and the degree of contamination of pollutants in the soil. When in use, the soil samples to be tested are respectively loaded into two sample tubes 4. The sample soil needs to be filled to a certain height in the sample tube 4, and the specific height is not more than the height position of the slot 42. After the sample tube 4 is closed by the cover plate 43, the sample tube 4 is clamped into the card slot 3 of the detection chamber 2. The controller 55 controls the rotation of the driving motor 52, so that the lifting block 54 drives the mounting frame 7 and the pH value detection probe 8 to move downward synchronously. After the pH value detection probe 8 is inserted into the sample tube 4 below, the pH value of the soil in the sample tube 4 is tested. The value of the detected pH value is displayed by the numerical display 9. After the detection is completed, the data are recorded respectively, and then the lifting block 54 and the pH value detection probe 8 are controlled to rise, and the sample tube 4 is taken out and replaced, and the pH value test of the next group of soil is continued. Through this device, the pH value of two sample soils can be tested at one time, which improves the test efficiency of the soil pH value and provides data for the relationship between the soil pH value and the degree of contamination of pollutants in the soil.

Claims

1. A pH value detection device for soil pollution simulation research, comprising a detection box (1), characterized in that: The detection box (1) is provided with a detection chamber (2), the bottom of the detection chamber (2) is provided with a card slot (3) symmetrically on the left and right, a sample tube (4) is installed in the card slot (3), a driving mechanism (5) is fixedly installed on the top of the detection box (1), detection holes (6) symmetrically distributed on the left and right are opened on the top of the detection box (1), the detection box (1) is equipped with a mounting frame (7) symmetrically distributed on the left and right through the driving mechanism (5), a pH value detection probe (8) is fixedly installed in the mounting frame (7), a numerical display (9) is fixedly installed on the top of the detection box (1) symmetrically on the left and right, and the pH value detection probe (8) is electrically connected to the numerical display (9).

2. The pH value detection device for soil pollution simulation research according to claim 1 is characterized by: The driving mechanism (5) comprises a fixing frame (51), the fixing frame (51) is fixedly mounted on the top of the detection box (1), a driving motor (52) is embedded and mounted on the top of the fixing frame (51), a screw rod (53) is rotatably connected inside the fixing frame (51), an output end of the driving motor (52) is fixedly connected to the top of the screw rod (53), a lifting block (54) threadedly connected to the screw rod (53) is slidably connected inside the fixing frame (51), and the mounting frame (7) is fixedly mounted on the left and right side walls of the lifting block (54), respectively.

3. The pH value detection device for soil pollution simulation research according to claim 1 is characterized by: An auxiliary fixing block (10) is fixedly mounted on the bottom of the inner cavity of the detection cavity (2), and the auxiliary fixing blocks (10) are evenly distributed in a circle around the center of the card slot (3).

4. The pH value detection device for soil pollution simulation research according to claim 1 is characterized by: The sample cylinder (4) comprises a cylinder body (41), a slot (42) is provided on the side wall of the cylinder body (41), a cover plate (43) is inserted into the slot (42), and a rubber sealing insert ring (45) is embedded and installed at the center of the cover plate (43).

5. The device for detecting pH value of soil pollution simulation research according to claim 4, characterized in that: A handle block (44) is integrally formed on the side wall of the cover plate (43), and a handle frame (46) is fixedly connected to the side wall of the cylinder (41).

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