Soil sample detection device with screening function

Abstract

The soil sample detection device with the screening function comprises a machine body, a screen is arranged in the machine body, first connecting plates are symmetrically arranged on the two sides of the screen, and a plurality of first springs are fixedly connected between the first connecting plates and the screen; a first connecting frame is arranged in the machine body, one end of the screen is slidably arranged in the first connecting frame, a first push plate is fixedly arranged on the screen, a first sliding groove is formed in the first connecting frame, and the first push plate extends out of the first sliding groove; a mounting plate is arranged in the machine body, a first motor is fixedly arranged on the mounting plate, the output end of the first motor is fixedly connected with a cam, and the cam generates thrust on the first push plate and the first connecting frame when rotating; a tension spring is fixedly arranged at the top of the first connecting frame, and the other end of the tension spring is fixedly connected with the second connecting plate. According to the utility model, the cam pushes the first push plate and the first connecting frame to drive the screen to vibrate back and forth and up and down, so that the screening speed of samples is increased, and the screening effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to soil detection technical field, especially a kind of soil sample detection device with screening function. BACKGROUND

[0002] Soil environmental monitoring is an important measure to understand the quality of the soil environment. It is a dynamic analysis and determination of the degree of soil pollution and its development trend for the purpose of preventing and controlling soil pollution. It includes the investigation of the current situation of soil environmental quality, the investigation of regional soil environmental background values, the investigation of soil pollution accidents and the dynamic observation of contaminated soil. Soil environmental monitoring generally includes preparation, site selection, sampling, sample preparation, analysis and testing, evaluation and other steps.

[0003] After obtaining the soil sample, the soil needs to be screened to remove grass, leaves, branches or garbage in the soil, so as to make the soil sample testing more accurate. For a small amount of sample, manual picking can be used, but it consumes a lot of manpower. For a large amount of soil sample, manual removal of impurities wastes time, has high cost and low efficiency. UTILITY MODEL CONTENT

[0004] Based on the above background, the purpose of the utility model is to provide a soil sample detection device with screening function.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A soil sample detection device with screening function, comprising a machine body, a feed hopper is provided on the top of the machine body;

[0007] A screen is provided in the machine body, first connecting plates are symmetrically provided on both sides of the screen, and a plurality of first springs are fixedly connected between the first connecting plates and the screen; a first rotating shaft is provided at one end of the screen, the first rotating shaft is rotatably connected to the first connecting plates and the machine body at both ends, and the first connecting plates, the screen and the first rotating shaft are slidably connected;

[0008] A first connecting frame is provided in the machine body, one end of the first connecting plate is fixedly connected to the first connecting frame, and one end of the screen is slidably arranged in the first connecting frame; a first push plate is fixedly arranged on the screen, a first sliding groove is formed in the first connecting frame, the first push plate extends out of the first sliding groove, and the first push plate and the first sliding groove are slidably connected;

[0009] An installation plate is provided in the machine body, a first motor is fixedly arranged on the installation plate, a cam is fixedly connected to the output end of the first motor, and the cam generates a pushing force on the first push plate and the first connecting frame when rotating;

[0010] The first connecting frame is in sliding connection with the mounting plate, a pull spring is fixedly arranged at the top of the first connecting frame, a second connecting plate is arranged on the mounting plate, and the other end of the pull spring is fixedly connected with the second connecting plate;

[0011] A collecting hopper is arranged below the screen, the bottom of the collecting hopper is a discharging port, and a sampling pipe is arranged below the discharging port;

[0012] A detector is arranged in the machine body, an electric telescopic rod is arranged on the detector, one end of the electric telescopic rod is connected with a detection probe, and the detection probe is electrically connected with the detector through a wire;

[0013] A moving assembly is arranged at the bottom of the machine body, and the moving assembly is connected with the sampling pipe.

[0014] Preferably, a first telescopic rod is arranged in the pull spring, and the two ends of the first telescopic rod are fixedly connected with the first connecting frame and the second connecting plate respectively.

[0015] Preferably, a discharging valve is arranged on each discharging port, and the amount of sample in the sampling pipe can be controlled by opening and closing the discharging valve.

[0016] Preferably, the moving assembly comprises a first threaded rod, the first threaded rod is rotatably arranged on the inner bottom of the machine body, a second motor is arranged in the machine body, the second motor is fixedly connected with the first threaded rod, a moving block is arranged on the first threaded rod, the moving block is in threaded connection with the first threaded rod, the moving block is in sliding connection with the inner bottom wall of the machine body, and the sampling pipe is arranged on the top of the moving block.

[0017] Preferably, a first groove is arranged on the top of the moving block, and the sampling pipe is clamped with the first groove, so that the stability of the sampling pipe during movement of the moving block can be improved, and the sampling pipe can be prevented from shaking.

[0018] Preferably, a first positioning frame is fixedly arranged on the inner wall of the machine body, the first positioning frame is arranged below the detection probe, when the sampling pipe moves to below the detection probe, the outer side of the sampling pipe is clamped with the first positioning frame, the first positioning frame stably clamps the outer side of the sampling pipe, and the sampling pipe can be prevented from deviating due to the extension and retraction of the detection probe during detection.

[0019] Preferably, a second positioning block is fixedly arranged on the inner bottom of the machine body, and the second positioning block is arranged below the collecting hopper and is used for positioning the sampling pipe below the discharging port.

[0020] Preferably, a pneumatic cylinder is fixedly arranged in the machine body, the output end of the pneumatic cylinder is fixedly connected with the mounting plate, and the mounting plate is in sliding connection with the inner wall of the machine body.

[0021] A waste hopper is arranged on the side of the machine body, and the waste hopper is arranged below the screen and is used for collecting samples that do not pass through the screen.

[0022] The utility model has the advantages of the following:

[0023] 1. The utility model discloses a cam is to the first push plate and the first connecting frame's thrust, drives the screen mesh before and after vibration and up and down vibration, accelerates the screening speed of sample, improves the screening effect, thereby improves the detection accuracy of sample.

[0024] 2. The utility model discloses a cylinder is started and drives the installation board to go up, and the installation board drives the first connecting frame to go up, and the screen mesh connected with the first connecting frame one end goes up, and the other end rotates around the first rotation axis, makes the screen mesh into the inclined state, and the impurity that has not passed through the screen mesh falls into the waste hopper along the inclined direction of screen mesh, completes the cleaning of sundries, does not need manual intervention, improves work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced to the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art comes, under the premise of not paying the creative labor, can also obtain other drawings according to the structure shown in these drawings.

[0026] Figure 1 It is the internal section view schematic diagram of the utility model;

[0027] Figure 2 It is the three-dimensional structure schematic diagram of the utility model;

[0028] Figure 3 It is the internal three-dimensional structure schematic diagram of the utility model;

[0029] Figure 4 It is the internal three-dimensional structure schematic diagram of the utility model of another view.

[0030] Wherein: 1. machine body;11. feeding hopper;12. waste hopper;

[0031] 2. screen mesh;21. first rotation axis;22. first push plate;

[0032] 3. first connecting plate;31. first spring;

[0033] 4. first connecting frame;41. first sliding slot;42. tension spring;43. first telescopic rod;

[0034] 5. installation board;51. first motor;52. cam;53. second connecting plate;54. cylinder;

[0035] 6. material collecting hopper;61. discharge port;62. discharge valve;

[0036] 7. Sampling tube; 71. First positioning frame; 72. Second positioning block;

[0037] 8. Detector; 81. Electric telescopic pole; 82. Detection probe;

[0038] 9. Moving component; 91. First threaded rod; 92. Second motor; 93. Moving block; 94. First groove. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0041] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0042] like Figures 1-4 As shown, a soil sample testing device with screening function includes a body 1, and a feed hopper 11 is provided on the top of the body 1;

[0043] The machine body 1 is equipped with a screen 2. The screen 2 is symmetrically equipped with first connecting plates 3 on both sides. A number of first springs 31 are fixedly connected between the first connecting plates 3 and the screen 2. One end of the screen 2 is equipped with a first rotating shaft 21. The two ends of the first rotating shaft 21 pass through the first connecting plates 3 and are rotatably connected to the machine body 1. The first connecting plates 3 and the screen 2 are slidably connected to the first rotating shaft 21.

[0044] The machine body 1 is provided with a first connecting frame 4. One end of the first connecting plate 3 is fixedly connected to the first connecting frame 4. One end of the screen 2 is slidably disposed in the first connecting frame 4. A first push plate 22 is fixedly disposed on the screen 2. A first sliding groove 41 is opened on the first connecting frame 4. The first push plate 22 extends out of the first sliding groove 41 and is slidably connected to the first sliding groove 41.

[0045] The machine body 1 is provided with an installation plate 5. A first motor 51 is fixedly installed on the installation plate 5. A cam 52 is fixedly connected to the output end of the first motor 51. When the cam 52 rotates, it generates a thrust on the first push plate 22 and the first connecting frame 4.

[0046] The first connecting frame 4 is slidably connected to the mounting plate 5. A tension spring 42 is fixedly provided on the top of the first connecting frame 4. A second connecting plate 53 is provided on the mounting plate 5. The other end of the tension spring 42 is fixedly connected to the second connecting plate 53.

[0047] Below the screen 2 is a material collection hopper 6, the bottom of the material collection hopper 6 is a material discharge port 61, and below the material discharge port 61 is a sampling tube 7;

[0048] The body 1 is equipped with a detector 8, and the detector 8 is equipped with an electric telescopic rod 81. One end of the electric telescopic rod 81 is connected to the detection probe 82, and the detection probe 82 is electrically connected to the detector 8 through a wire.

[0049] The bottom of the body 1 is provided with a moving component 9, which is connected to the sampling tube 7.

[0050] Soil samples to be screened are fed into the machine body 1 from the feed hopper 11. The first motor 51 drives the cam 52 to rotate. The cam 52 rotates until it contacts the first push plate 22, generating a pushing force on the first push plate 22. The first push plate 22 moves in the first slide 41, driving the screen 2 to move. One side of the first spring 31 on both sides of the screen 2 is compressed, and the other side is stretched. When the cam 52 disengages from the first push plate 22, the screen 2 vibrates back and forth under the action of the first spring 31. When the cam 52 rotates to contact the first connecting frame 4, it generates a downward pushing force on the first connecting frame 4. The side of the mounting plate 5 slides, causing the screen 2 to move downwards. The tension spring 42 is stretched. When the cam 52 disengages from the first connecting frame 4, the first connecting frame 4 causes the screen 2 to vibrate up and down under the action of the tension spring 42. The screen 2 vibrates back and forth and up and down during the rotation of the cam 52, sieving the soil sample. Large impurities in the soil remain on the screen 2. The sieved soil sample falls from the discharge port 61 of the collection hopper 6 into the sampling tube 7 and is sent to the bottom of the detector 8 under the action of the moving component 9. The detection probe 82 extends into the sampling tube 7 under the action of the electric telescopic rod 81 to detect the sample.

[0051] Preferably, the tension spring 42 is fitted with a first telescopic rod 43, and the two ends of the first telescopic rod 43 are fixedly connected to the first connecting frame 4 and the second connecting plate 53, respectively.

[0052] Preferably, all discharge ports 61 are equipped with discharge valves 62, and the amount of sample in the sampling tube 7 can be controlled by switching the discharge valves 62 on and off.

[0053] Preferably, the moving component 9 includes a first threaded rod 91, which is rotatably mounted on the bottom of the machine body 1. A second motor 92 is provided inside the machine body 1 and is fixedly connected to the first threaded rod 91. A moving block 93 is provided on the first threaded rod 91 and is threadedly connected to the first threaded rod 91. The moving block 93 is slidably connected to the bottom wall of the inner side of the machine body 1. The sampling tube 7 is located on the top of the moving block 93. The second motor 92 drives the first threaded rod 91 to rotate, and the moving block 93 moves along the axial direction of the first threaded rod 91 due to the threaded connection, thereby moving the sampling tube 7 to below the detection probe 82.

[0054] Preferably, the top of the moving block 93 is provided with a first groove 94, and the sampling tube 7 is engaged with the first groove 94, which can improve the stability of the sampling tube 7 during the movement of the moving block 93 and prevent the sampling tube 7 from shaking.

[0055] Preferably, a first positioning frame 71 is fixedly provided on the inner side wall of the body 1. The first positioning frame 71 is located below the detection probe 82. When the sampling tube 7 moves to below the detection probe 82, the outer side of the sampling tube 7 is engaged with the first positioning frame 71. The first positioning frame 71 stably engages with the outer side of the sampling tube 71, preventing the sampling tube 7 from shifting due to the detection probe 82 extending in and out during detection.

[0056] Preferably, a second positioning block 72 is fixed at the bottom of the machine body 1. The second positioning block 72 is located below the collecting hopper 6 and is used to position the sampling tube 7 below the discharge port 61.

[0057] Preferably, a cylinder 54 is fixedly installed inside the machine body 1, the output end of the cylinder 54 is fixedly connected to the mounting plate 5, and the mounting plate 5 is slidably connected to the inner wall of the machine body 1.

[0058] The machine body 1 has a waste hopper 12 on its side, which is located below the screen 2. It is used to collect samples that do not pass through the screen 2. After screening, the cylinder 54 is started to drive the mounting plate 5 to move upward. The mounting plate 5 drives the first connecting frame 4 to move upward. One end of the screen 2 connected to the first connecting frame 4 moves upward, and the other end rotates around the first rotating shaft 21, so that the screen 2 is tilted. Impurities that do not pass through the screen 2 fall into the waste hopper 12 along the tilt direction of the screen 2, thus completing the cleaning of the impurities.

[0059] The working principle of this utility model is as follows: The soil sample to be screened is fed into the machine body 1 from the feed hopper 11. The first motor 51 drives the cam 52 to rotate. The cam 52 rotates until it contacts the first push plate 22, generating a pushing force on the first push plate 22. The first push plate 22 moves in the first slide groove 41, driving the screen 2 to move. One side of the first spring 31 on both sides of the screen 2 is compressed, and the other side is stretched. When the cam 52 disengages from the first push plate 22, the screen 2 vibrates back and forth under the action of the first spring 31. When the cam 52 rotates to contact the first connecting frame 4, it generates a downward pushing force on the first connecting frame 4. The first connecting frame 4 slides on the side of the mounting plate 5, driving the screen 2 to move downward. The tension spring 42 is stretched. When the cam 52 disengages from the first connecting frame 4, the first connecting frame 4 drives the screen 2 to vibrate up and down under the action of the tension spring 42. As the cam 52 rotates, the screen 2 vibrates back and forth and up and down to sieve the soil sample. Large impurities in the soil remain on the screen 2. The sieved soil sample falls from the discharge port 61 of the collection hopper 6 into the sampling tube 7. The second motor 92 drives the first threaded rod 91 to rotate. The moving block 93 moves along the axial direction of the first threaded rod 91 due to the threaded connection, which moves the sampling tube 7 to below the detection probe 82. The detection probe 82 extends into the sampling tube 7 under the action of the electric telescopic rod 81 to detect the sample. After screening, the cylinder 54 starts and drives the mounting plate 5 to move upward. The mounting plate 5 drives the first connecting frame 4 to move upward. One end of the screen 2 connected to the first connecting frame 4 moves upward, and the other end rotates around the first rotating shaft 21, so that the screen 2 is in an inclined state. Impurities that do not pass through the screen 2 fall into the waste hopper 12 along the inclined direction of the screen 2, completing the cleaning of the debris.

[0060] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A soil sample testing device with sieving function, characterized in that, Includes a machine body, the top of which is provided with a feed hopper; The machine body is provided with a screen, and first connecting plates are symmetrically arranged on both sides of the screen. Several first springs are fixedly connected between the first connecting plates and the screen. One end of the screen is provided with a first rotating shaft. The two ends of the first rotating shaft pass through the first connecting plates and are rotatably connected to the machine body. The first connecting plates and the screen are slidably connected to the first rotating shaft. The machine body is provided with a first connecting frame, one end of the first connecting plate is fixedly connected to the first connecting frame, one end of the screen is slidably disposed in the first connecting frame, a first push plate is fixedly disposed on the screen, a first sliding groove is opened on the first connecting frame, the first push plate extends out of the first sliding groove, and the first push plate is slidably connected to the first sliding groove. The machine body is provided with a mounting plate, and a first motor is fixedly mounted on the mounting plate. A cam is fixedly connected to the output end of the first motor. When the cam rotates, it generates a thrust on the first push plate and the first connecting frame. The first connecting frame is slidably connected to the mounting plate. A tension spring is fixedly provided on the top of the first connecting frame. A second connecting plate is provided on the mounting plate. The other end of the tension spring is fixedly connected to the second connecting plate. A material collection hopper is provided below the screen, the bottom of the material collection hopper is a material discharge port, and a sampling tube is provided below the material discharge port; The machine body is equipped with a detector, the detector is equipped with an electric telescopic rod, one end of the electric telescopic rod is connected to a detection probe, and the detection probe and the detector are electrically connected through a wire; The bottom of the machine body is equipped with a moving component, which is connected to the sampling tube.

2. The soil sample testing device with sieving function according to claim 1, characterized in that, The tension spring is fitted with a first telescopic rod, and the two ends of the first telescopic rod are fixedly connected to the first connecting frame and the second connecting plate, respectively.

3. The soil sample testing device with sieving function according to claim 2, characterized in that, All discharge ports are equipped with discharge valves.

4. The soil sample testing device with sieving function according to claim 1, characterized in that, The moving component includes a first threaded rod, which is rotatably mounted on the bottom of the machine body. A second motor is provided inside the machine body and is fixedly connected to the first threaded rod. A moving block is provided on the first threaded rod and is threadedly connected to the first threaded rod. The moving block is slidably connected to the bottom wall of the machine body. The sampling tube is located on the top of the moving block.

5. The soil sample testing device with sieving function according to claim 4, characterized in that, The top of the moving block has a first groove, and the sampling tube is engaged with the first groove.

6. The soil sample testing device with sieving function according to claim 5, characterized in that, A first positioning frame is fixedly provided on the inner side wall of the machine body. The first positioning frame is located below the detection probe. When the sampling tube moves to below the detection probe, the outer side of the sampling tube is engaged with the first positioning frame.

7. The soil sample testing device with sieving function according to claim 6, characterized in that, A second positioning block is fixed at the bottom of the machine body. The second positioning block is located below the collecting hopper and is used to position the sampling tube below the discharge port.

8. The soil sample testing device with sieving function according to any one of claims 1-7, characterized in that, A cylinder is fixedly installed inside the machine body, and the output end of the cylinder is fixedly connected to the mounting plate. The mounting plate is slidably connected to the inner wall of the machine body. The machine body is provided with a waste hopper on its side, which is located below the sieve and is used to collect samples that do not pass through the sieve.

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