A soil automatic detection device and detection method for land engineering

Abstract

The present invention discloses an automatic soil detection device and a detection method for land engineering, which belongs to the field of land engineering technology; it includes a shell and a plurality of detection bodies fixedly installed in the shell, a hydraulic rod is fixedly installed in the shell, a sampling tube is fixedly installed at the output end of the hydraulic rod, a plurality of through grooves are opened on the side wall of the sampling tube, a second connecting rod is fixedly connected in each of the through grooves, a baffle is rotatably connected to the outer side of the second connecting rod, and a plurality of slots are opened in the circumferential direction of the outer side of the second connecting rod. When the present invention performs a soil detection operation, the device is moved as a whole to a suitable working position, and the hydraulic rod is started to complete the sampling operation, and after the sampling is completed, the sampling tube is moved into the shell, and the hydraulic rod is started again, so that the soil in the sampling tube can be evenly dropped on different detection bodies, and multiple detection operations can be performed simultaneously, with high work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of land engineering, and in particular to an automatic soil detection device and a detection method for land engineering. Background Art

[0002] In land engineering, it is necessary to first test the soil in the target area, analyze the data obtained from the test, and then adopt a suitable working method. In the process of soil testing, sampling is first performed, and then the sampled soil is poured into the testing equipment for the corresponding testing operation. The overall operation is simple;

[0003] However, in the actual working process, each sampling can only correspond to one detection method. Therefore, in the actual detection process, multiple repeated operations are required, and after the sampling is completed, the sampled soil needs to be processed, mainly by manual methods to remove the larger diameter materials, which is time-consuming, labor-intensive and very troublesome. In addition, in this process, it is also necessary to use manual methods to roll the soil to make it finer and more convenient for subsequent detection operations. The overall workload is large. Therefore, an automatic soil detection device and a detection method for land engineering are provided. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an automatic soil detection device and a detection method for land engineering.

[0005] The present invention adopts the following technical solutions:

[0006] A soil automatic detection device for land engineering comprises a shell and a plurality of detection bodies fixedly installed in the shell, a hydraulic rod fixedly installed in the shell, a sampling tube fixedly installed at the output end of the hydraulic rod, a plurality of through grooves are opened on the side wall of the sampling tube, a second connecting rod is fixedly connected in each of the through grooves, a baffle is rotatably connected to the outer side of the second connecting rod, a clamping groove is opened on the outer side of the second connecting rod, a clamping block is slidably installed in the through groove, a clamping rod is fixedly connected to the side wall of the clamping block, the clamping rod and the clamping groove match, a second spring is fixedly installed between the clamping block and the sampling tube, a protective cover is threadedly connected to the outer side of the sampling tube, a protective assembly is installed in the sampling tube, the protective assembly comprises a first connecting plate slidably installed in the sampling tube, a first spring is fixedly connected between the first connecting plate and the sampling tube, a plurality of arc rods are rotatably installed in the sampling tube, and the first connecting plate controls the rotation of the plurality of arc rods through a transmission assembly.

[0007] Preferably, the transmission assembly includes a plurality of threaded rods fixedly mounted on the upper side of the first connecting plate, the outer sides of the plurality of threaded rods are threadedly connected with a threaded barrel, the threaded barrel and the sampling tube are rotatably connected, the inner wall of the sampling tube is provided with a plurality of connecting grooves, the positions and numbers of the plurality of connecting grooves and the threaded barrel are relative, the side wall of the sampling tube is provided with a plurality of rotation grooves, the positions and numbers of the plurality of connecting grooves and the rotation grooves are relative, a plurality of first connecting rods are rotatably mounted in the sampling tube, one end of the plurality of first connecting rods extending into the connecting groove is fixedly connected with an incomplete gear, a transmission gear is fixedly connected to the outer side of the threaded barrel, the transmission gear and the incomplete gear are meshed, a torsion spring is fixedly connected between the incomplete gear and the connecting groove, and one end of the plurality of first connecting rods extending into the rotation groove is fixedly connected to an arc rod.

[0008] Preferably, a control component for controlling the opening size of the through slot is installed in the through slot, and the control component includes multiple third connecting rods, one of the third connecting rods is fixedly connected to the through slot, and the other third connecting rods are slidably connected to the through slot, and multiple fourth connecting rods are installed above the sampling tube, and each of the fourth connecting rods and the third connecting rods are rotatably connected to a second connecting plate, and the second connecting plates are staggered. An arc plate is rotatably connected to the outer side of one of the third connecting rods, and the arc plate is slidably connected to the sampling tube. A first annular groove is opened on the side wall of the arc plate, and a slide plate is slidably connected in the first annular groove. A cam is fixedly connected to the outer side of the threaded barrel, and a second annular groove is opened on the outer side of the cam, and the slide plate is slidably connected to the second annular groove.

[0009] Preferably, a detection assembly is installed in the protective cover, and the detection assembly includes a fifth connecting rod fixedly installed in the protective cover, a fixing ring is fixedly connected to the outer side of the fifth connecting rod, a mounting tube is threadedly connected to the upper side of the fifth connecting rod, a limiting ring is fixedly connected to the outer side of the mounting tube, a filter plate is slidably connected to the upper side of the fixing ring, a telescopic sleeve is also fixedly installed between the filter plate and the fixing ring, a third spring is fixedly installed in the telescopic sleeve, and a pressure sensor is also fixedly installed in the telescopic sleeve.

[0010] Preferably, the outer surface of the block is smooth.

[0011] Preferably, the lower end surface of the sampling tube is a smooth conical shape.

[0012] Preferably, a plurality of wheels are rotatably mounted on the outer side of the housing.

[0013] A detection method for automatic soil detection equipment for land engineering, characterized in that it includes the following steps:

[0014] S1. First, push the device as a whole to the sampling point, and then fix the device on the ground;

[0015] S2, then, start the hydraulic rod and start the sampling operation;

[0016] S3. After the sampling operation is completed, the hydraulic rod is started again to move the sampled soil into the housing;

[0017] S4, start testing;

[0018] S5. After the test is completed, the soil is discharged.

[0019] The beneficial effects of the present invention are:

[0020] 1. First, when testing the soil, move the device as a whole to a suitable working position and start the hydraulic rod to complete the sampling operation. After the sampling is completed, move the sampling tube into the shell and start the hydraulic rod again to make the soil in the sampling tube fall evenly on different testing bodies, so that multiple testing operations can be carried out at the same time, with high work efficiency.

[0021] 2. Secondly, when the soil enters the detection body, under the action of the third connecting rod, not only can the larger particles be screened out, but also the smaller particles can be crushed to make them smaller, which is more convenient for subsequent detection operations;

[0022] 3. Finally, after the first connecting plate passes through the through slot, the larger substances in the remaining soil can be tested. If there are many larger substances, it means that the quality of the soil sampled this time is average, and there is a large error in the quantity obtained in the experiment, which plays a positive feedback effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of an automatic soil detection device for land engineering proposed by the present invention;

[0024] Figure 2 This is a cross-sectional connection diagram of an automatic soil detection device for land engineering proposed by the present invention;

[0025] Figure 3 This is a schematic diagram of the connection between a hydraulic rod and a sampling tube in an automatic soil detection device for land engineering proposed by the present invention;

[0026] Figure 4 This is a schematic diagram of the deployment and connection of a sampling tube and a protective cover in an automatic soil detection device for land engineering proposed by the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of a baffle used in an automatic soil detection device for land engineering proposed by the present invention;

[0028] Figure 6 This is a cross-sectional connection diagram of a sampling tube used in an automatic soil detection device for land engineering proposed by the present invention;

[0029] Figure 7 This is a top view of a connection slot in a soil automatic detection device for land engineering proposed by the present invention;

[0030] Figure 8 This is a schematic structural diagram of a first connecting rod in an automatic soil detection device for land engineering proposed by the present invention;

[0031] Fig. 9 This is a schematic diagram of the connection between a transmission gear and an incomplete gear in an automatic soil detection device for land engineering proposed by the present invention;

[0032] Fig.10 This is a schematic diagram of the connection between the through slot and the third connecting rod in an automatic soil detection device for land engineering proposed by the present invention;

[0033] Fig.11 A schematic diagram of the connection between the third connecting rod and the fourth connecting rod in an automatic soil detection device for land engineering proposed by the present invention;

[0034] Fig.12 This is a cross-sectional connection diagram of a protective cover used in an automatic soil detection device for land engineering proposed by the present invention;

[0035] Fig.13 The present invention provides a schematic diagram of the cross-sectional connection of an outer shell of an automatic soil detection device for land engineering.

[0036] In the figure: 1 shell, 2 detection body, 3 hydraulic rod, 4 sampling tube, 5 through groove, 6 baffle, 7 protective cover, 8 first connecting plate, 9 first spring, 10 threaded rod, 11 threaded cylinder, 12 connecting groove, 13 rotating groove, 14 first connecting rod, 15 incomplete gear, 16 transmission gear, 17 torsion spring, 18 arc rod, 19 clamping rod, 20 clamping block, 21 second spring, 22 second connecting rod, 23 third connecting rod, 24 second connecting plate, 25 fourth connecting rod, 26 arc plate, 27 cam, 28 slide plate, 29 fifth connecting rod, 30 fixing ring, 31 filter plate, 32 mounting cylinder, 33 limiting ring, 34 third spring, 35 telescopic sleeve. DETAILED DESCRIPTION

[0037] See also Figure 1-Figure 13, an automatic soil detection device for land engineering, comprising a shell 1 and a plurality of detection bodies 2 fixedly installed in the shell 1, a hydraulic rod 3 fixedly installed in the shell 1, a sampling tube 4 fixedly installed at the output end of the hydraulic rod 3, a plurality of through grooves 5 opened on the side wall of the sampling tube 4, a second connecting rod 22 fixedly connected in each through groove 5, a baffle 6 rotatably connected to the outer side of the second connecting rod 22, a card slot opened on the outer side of the second connecting rod 22, a card block 20 slidably installed in the through groove 5, a card rod 19 fixedly connected to the side wall of the card block 20, the card rod 19 and the card slot match, a second spring 21 fixedly installed between the card block 20 and the sampling tube 4, a protective cover 7 threadedly connected to the outer side of the sampling tube 4, the outer surface of the card block 20 is smooth, and the lower end surface of the sampling tube 4 is a smooth conical shape, which is convenient for sampling operation;

[0038] First, multiple detection bodies 2 represent equipment that can detect soil, and each detection body 2 has different detection directions for soil. For example, one of the detection bodies 2 can detect the moisture content of the soil, and one of the detection bodies 2 can detect the pH value of the soil, etc. When performing the detection, the sampled soil is poured into the detection body 2. After the detection is completed, the detection body 2 can automatically discharge the internal soil from the shell 1 along the detection body 2. Secondly, wheels are installed on the outside of the shell 1. When the detection operation is required, the device is pushed to a suitable detection location, and then the protective cover 7 is removed from the sampling tube 4, and the hydraulic rod 3 is started. The hydraulic rod 3 drives the sampling tube 4 to move downward, so that the sampling tube 4 extends into the ground. , the soil on the ground enters the sampling tube 4 until the sampling tube 4 penetrates into the soil and is in a suitable working position relative to the soil. At this time, the soil to be sampled is already in the sampling tube 4, and then the hydraulic rod 3 is started again to make the sampling tube 4 enter the housing 1 from the ground, and then the protective cover 7 is screwed outside the sampling tube 4, and the hydraulic rod 3 is started again to make the sampling tube 4 continue to move upward, so that the sample inside the sampling tube 4 is moved out of the sampling tube 4 (the structure and principle of this phenomenon are described below), and the soil enters the detection body 2, and the detection operation is started. After the detection is completed, the data obtained by the detection is transmitted to the display screen on the upper side of the housing 1, and finally the automatic detection operation of the soil is completed. The above are all existing technologies and no unnecessary elaboration is made;

[0039] A protection assembly is installed in the sampling tube 4, and the protection assembly includes a first connecting plate 8 slidably installed in the sampling tube 4, a first spring 9 is fixedly connected between the first connecting plate 8 and the sampling tube 4, a plurality of arc rods 18 are rotatably installed in the sampling tube 4, the first connecting plate 8 controls the rotation of the plurality of arc rods 18 through a transmission assembly, the transmission assembly includes a plurality of threaded rods 10 fixedly installed on the upper side of the first connecting plate 8, a threaded barrel 11 is threadedly connected to the outer side of the plurality of threaded rods 10, the threaded barrel 11 is rotatably connected to the sampling tube 4, a plurality of connecting grooves 12 are opened on the inner wall of the sampling tube 4, and the plurality of connecting grooves 12 and the threaded barrel 11 are connected to each other. The positions and numbers are relative, a plurality of rotating grooves 13 are opened on the side wall of the sampling tube 4, and the positions and numbers of the plurality of connecting grooves 12 and the rotating grooves 13 are corresponding, a plurality of first connecting rods 14 are rotatably installed in the sampling tube 4, and one end of the plurality of first connecting rods 14 extending into the connecting groove 12 is fixedly connected with an incomplete gear 15, a transmission gear 16 is fixedly connected to the outer side of the threaded tube 11, the transmission gear 16 is meshed with the incomplete gear 15, a torsion spring 17 is fixedly connected between the incomplete gear 15 and the connecting groove 12, and one end of the plurality of first connecting rods 14 extending into the rotating groove 13 is fixedly connected with an arc rod 18;

[0040] First, a connecting groove 12, a rotating groove 13, and a first connecting rod 14 form a group. Then, when the sampling operation is performed, the arc rod 18 is located in the rotating groove 13. Then, when the soil inside the sampling tube 4 gradually increases, the soil inside the sampling tube 4 and the first connecting plate 8 are abutted against each other, causing the first connecting plate 8 to move upward. The first connecting plate 8 compresses the first spring 9 and drives the threaded rod 10 to move upward. Since the threaded rod 10 and the threaded barrel 11 are threadedly connected, and the threaded barrel 11 and the sampling tube 4 are rotationally connected, the upward moving threaded rod 10 causes the threaded barrel 11 to rotate relative to the sampling tube 4, and the threaded barrel 11 drives the transmission gear 16 to rotate, and the transmission gear 16 drives the meshing incomplete gear 15 to rotate until the transmission gear 16 and the incomplete gear 15 are disconnected. However, during this process, the torsion spring 17 will be deformed, which will cause the transmission gear 16 to always abut against the incomplete gear 15, that is, the incomplete gear 15 will be disconnected from the transmission gear 16 after rotating a certain angle. After the connection is opened, it is in an approximately fixed state (that is, in this process, since the transmission gear 16 and the incomplete gear 15 are at the critical point of disconnection, the teeth on the outer side of the transmission gear 16 will always be against the teeth at the end of the incomplete gear 15, which will cause the incomplete gear 15 to be in a shaking state, but the shaking amplitude of the incomplete gear 15 is small, so it can be approximately regarded as a fixed state). When the incomplete gear 15 starts to rotate, the incomplete gear 15 will drive the arc rod 18 to rotate through the first connecting rod 14, thereby causing the arc rod 18 to rotate out of the rotating groove 13, and against the soil inside the sampling tube 4, and penetrate into the soil, thereby forming an obstruction effect on the soil, reducing the possibility of soil falling from the sampling tube 4, thereby maintaining a normal sampling effect, and then after the sampling is completed, the protective cover 7 is screwed on the sampling tube 4 again, and the hydraulic rod 3 is started again, the hydraulic rod 3 drives the sampling tube 4 to move upward, and the sampling tube 4 drives the threaded rod 10 to move upward. When the threaded rod 10 and the inner wall of the shell 1 are against each other, the protective cover 7 is screwed on the sampling tube 4 again, and the hydraulic rod 3 is started again. The hydraulic rod 3 drives the sampling tube 4 to move upward. The sampling tube 4 drives the threaded rod 10 to move upward. When the threaded rod 10 and the inner wall of the shell 1 are against each other, the Fig.13It can be seen that a trapezoidal ring is fixedly installed in the shell 1. At this time, the block 20 is also against the trapezoidal ring on the inner wall of the shell 1. At this time, under the obstruction of the trapezoidal ring, the block 20 will be driven to move. While the block 20 stretches the second spring 21, the block 20 drives the clamping rod 19 to move, and the clamping rod 19 moves out of the clamping groove, thereby causing the baffle 6 to lose its restriction. At the same time, under the obstruction of the shell 1, the threaded rod 10 will move downward relative to the sampling tube 4, and the threaded rod 10 will drive the first connecting plate 8 to move downward. The first connecting plate 8 and the soil will form a squeezing effect on the soil, thereby allowing the soil to be discharged from the through groove 5 and then fall on the detection body 2 for corresponding detection. In the process of the threaded rod 10 and the first connecting plate 8 moving downward, the threaded rod 10 and the first connecting plate 8 will also move downward due to the threaded rod 10. The rod 10 and the threaded barrel 11 are threadedly connected, and the threaded barrel 11 and the sampling tube 4 are rotationally connected, so the threaded rod 10 moving downward causes the threaded barrel 11 to rotate again, and the threaded barrel 11 drives the transmission gear 16 to rotate, and the transmission gear 16 and the incomplete gear 15 resist each other and then drive the incomplete gear 15 to rotate, and the incomplete gear 15 drives the arc rod 18 to rotate again through the first connecting rod 14, thereby causing the arc rod 18 to enter the rotating groove 13 until the transmission gear 16 is disconnected from the incomplete gear 15 again, and then, the threaded rod 10 and the first connecting plate 8 continue to move downward, the first connecting plate 8 squeezes the soil inside the sampling tube 4, and the soil falls from the through groove 5 onto the detection body 2, and the detection body 2 is started to perform the corresponding detection operation.

[0041] A control assembly for controlling the opening size of the through slot 5 is installed in the through slot 5, and the control assembly includes a plurality of third connecting rods 23, one of which is fixedly connected to the through slot 5, and the other third connecting rods 23 are slidably connected to the through slot 5. A plurality of fourth connecting rods 25 are installed above the sampling tube 4, and a second connecting plate 24 is rotatably connected between each fourth connecting rod 25 and the third connecting rod 23, and the second connecting plates 24 are staggered. An arc plate 26 is rotatably connected to the outer side of one of the third connecting rods 23, and the arc plate 26 is slidably connected to the sampling tube 4. A first annular groove is opened on the side wall of the arc plate 26, and a slide plate 28 is slidably connected in the first annular groove. A cam 27 is fixedly connected to the outer side of the threaded barrel 11, and a second annular groove is opened on the outer side of the cam 27, and the slide plate 28 is slidably connected to the second annular groove;

[0042] First, the connection diagram of the plurality of second connecting plates 24, the third connecting rods 23, and the fourth connecting rods 25 is shown in FIG. Fig.10As shown, the structure composed of multiple second connecting plates 24, third connecting rods 23, and fourth connecting rods 25 is similar to the telescopic scissor structure in real life, that is, the spacing between multiple third connecting rods 23 is equal. Secondly, in the process of the first connecting plate 8 moving downward to compress the soil, the soil is discharged through the through groove 5. During this process, the threaded cylinder 11 is in a rotating state, and the threaded cylinder 11 drives the cam 27 to rotate. The cam 27 drives the arc plate 26 to move through the slide plate 28. Since the arc plate 26 and the sampling tube 4 are slidably connected, the spacing between the multiple third connecting rods 23 is always in a changing state, and The spacing between the third connecting rods 23 will be within a range. During the soil discharge process, there are still larger particles in the soil. The materials larger than the maximum spacing of the third connecting rods 23 cannot enter the upper side of the detection body 2 due to the obstruction of the third connecting rods 23. Only the materials smaller than the maximum spacing of the third connecting rods 23 can pass through the third connecting rods 23. When these materials pass through the third connecting rods 23, since the third connecting rods 23 are always in motion, the moving third connecting rods 23 will also form a crushing effect on the materials therein, making them smaller and more convenient for subsequent detection operations.

[0043] A detection assembly is installed in the protective cover 7, and the detection assembly includes a fifth connecting rod 29 fixedly installed in the protective cover 7, a fixing ring 30 is fixedly connected to the outer side of the fifth connecting rod 29, a mounting cylinder 32 is threadedly connected to the upper side of the fifth connecting rod 29, a limiting ring 33 is fixedly connected to the outer side of the mounting cylinder 32, a filter plate 31 is slidably connected to the upper side of the fixing ring 30, a telescopic sleeve 35 is also fixedly installed between the filter plate 31 and the fixing ring 30, a third spring 34 is fixedly installed in the telescopic sleeve 35, and a pressure sensor is also fixedly installed in the telescopic sleeve 35;

[0044] First, the pressure sensor is a device or apparatus that can sense pressure signals and convert pressure signals into usable output electrical signals according to certain rules. Secondly, the telescopic sleeve 35 is composed of two parts, namely a connecting rod and a sleeve, wherein the connecting rod is fixedly connected to the fixing ring 30, the sleeve is fixedly connected to the filter plate 31, and the third spring 34 and the pressure sensor are fixedly installed in the sleeve. In the initial state, the filter plate 31 is located on the upper side of the limit ring 33 and is against the limit ring 33, and the third spring 34 is not compressed, and the pressure sensor does not send out an electrical signal. When the soil is detected, after the first connecting plate 8 passes over the through groove 5, when the first connecting plate 8 and the mounting tube 32 are against each other, the mounting tube 32 will cause the mounting tube 32 to move downward relative to the protective cover 7, and the mounting tube 32 drives the limit ring 33 to move downward. The filter plate 31 will first follow the limit ring 33 to move downward a distance, and when the connecting rod and the third spring 34 are against each other, the third spring 34 will be compressed, and the pressure sensor sends out an electrical signal. At this time, the mounting tube 32 The limit ring 33 continues to move downward under the action of the first connecting plate 8 until the elastic force of the third spring 34 is equal to the sum of the gravity of the filter plate 33, the sleeve and the larger material located on the upper side of the filter plate 33, and then the pressure sensor sends a constant electrical signal. At this time, the limit ring 33 continues to move downward under the action of the first connecting plate 8, resulting in the disconnection between the limit ring 33 and the filter plate 31, wherein the finer soil passes through the filter plate 31 and moves downward with the limit ring 33, and the larger material is blocked by the filter plate 31 (this larger material is also the material with a diameter greater than the maximum spacing of the third connecting rod 23 as mentioned above), and remains on the filter plate 31 until the limit ring 33 and the fixing ring 30 are against each other. At this time, all the finer soil passes through the filter plate 31, and the size of the electrical signal sent by the pressure sensor is compared. If the electrical signal sent by the pressure sensor is too large, it means that there are more larger materials, the soil quality sampled this time is average, and the quantity obtained in the experiment has a large error.

[0045] A detection method for automatic soil detection equipment for land engineering, comprising the following steps:

[0046] S1. First, push the device as a whole to the sampling point, and then fix the device on the ground;

[0047] S2, then, start the hydraulic rod 3 and start the sampling operation;

[0048] S3, after the sampling operation is completed, the hydraulic rod 3 is started again to move the sampled soil into the housing 1;

[0049] S4, start testing;

[0050] S5. After the test is completed, the soil is discharged

[0051] In the present invention, when it is necessary to perform a detection operation, the device is pushed as a whole to a suitable detection location, and then the protective cover 7 is removed from the sampling tube 4, and the hydraulic rod 3 is started. The hydraulic rod 3 drives the sampling tube 4 to move downward, so that the sampling tube 4 extends into the ground, and the soil on the ground enters the sampling tube 4 until the sampling tube 4 penetrates into the soil and the sampling tube 4 is in a suitable working position relative to the soil. At this time, the soil to be sampled is already located in the sampling tube 4, and then the hydraulic rod 3 is started again to make the sampling tube 4 enter the shell 1 from the ground, and then the protective cover 7 is screwed outside the sampling tube 4, and the hydraulic rod 3 is started again to make the sampling tube 4 continue to move upward, so that the sample inside the sampling tube 4 is removed from the sampling tube 4 (the structure and principle of forming this phenomenon are described below), and the soil enters the detection body 2, and the detection operation is started. After the detection is completed, the detected data is transmitted to the display screen on the upper side of the shell 1, and finally the automatic detection operation of the soil is completed. The above are all prior arts and no unnecessary elaboration is made;

[0052] When the sampling operation is performed, the arc rod 18 is located in the rotating groove 13. Then, when the soil inside the sampling tube 4 gradually increases, the soil inside the sampling tube 4 and the first connecting plate 8 abut against each other, causing the first connecting plate 8 to move upward. The first connecting plate 8 compresses the first spring 9 and drives the threaded rod 10 to move upward. Since the threaded rod 10 and the threaded barrel 11 are threadedly connected, and the threaded barrel 11 and the sampling tube 4 are rotationally connected, the upwardly moving threaded rod 10 causes the threaded barrel 11 to rotate relative to the sampling tube 4, and the threaded barrel 11 drives the transmission gear 16 to rotate, and the transmission gear 16 drives the meshing incomplete gear 15 to rotate until the transmission gear 16 and the incomplete gear 15 are disconnected. However, during this process, the torsion spring 17 will be deformed, which will cause the transmission gear 16 to always abut against the incomplete gear 15, that is, the incomplete gear 15 will be in an approximately fixed state after being rotated a certain angle and disconnected from the transmission gear 16 (that is, at this During the process, since the transmission gear 16 and the incomplete gear 15 are at the critical point of disconnection, the teeth on the outer side of the transmission gear 16 will always collide with the teeth at the end of the incomplete gear 15, which will cause the incomplete gear 15 to be in a shaking state, but the shaking amplitude of the incomplete gear 15 is small, so it can be approximately regarded as a fixed state). When the incomplete gear 15 starts to rotate, the incomplete gear 15 will drive the arc rod 18 to rotate through the first connecting rod 14, thereby causing the arc rod 18 to rotate out of the rotating groove 13, and collide with the soil inside the sampling tube 4, and penetrate into the soil, thereby forming an obstruction effect on the soil, reducing the possibility of soil falling from the sampling tube 4, thereby maintaining a normal sampling effect, and then after the sampling is completed, the protective cover 7 is screwed on the sampling tube 4 again, and the hydraulic rod 3 is started again, the hydraulic rod 3 drives the sampling tube 4 to move upward, and the sampling tube 4 drives the threaded rod 10 to move upward. When the threaded rod 10 and the inner wall of the shell 1 collide, the protective cover 7 is screwed on the sampling tube 4 again. Fig.13 It can be seen that a trapezoidal ring is fixedly installed in the shell 1. At this time, the block 20 is also against the trapezoidal ring on the inner wall of the shell 1. At this time, under the obstruction of the trapezoidal ring, the block 20 will be driven to move. While the block 20 stretches the second spring 21, the block 20 drives the clamping rod 19 to move, and the clamping rod 19 moves out of the clamping groove, thereby causing the baffle 6 to lose its restriction. At the same time, under the obstruction of the shell 1, the threaded rod 10 will move downward relative to the sampling tube 4, and the threaded rod 10 will drive the first connecting plate 8 to move downward. The first connecting plate 8 and the soil will form a squeezing effect on the soil, thereby allowing the soil to be discharged from the through groove 5 and then fall on the detection body 2 for corresponding detection. In the process of the threaded rod 10 and the first connecting plate 8 moving downward, the threaded rod 10 and the first connecting plate 8 will also move downward due to the threaded rod 10. The rod 10 and the threaded barrel 11 are threadedly connected, and the threaded barrel 11 and the sampling tube 4 are rotationally connected, so the threaded rod 10 moving downward causes the threaded barrel 11 to rotate again, and the threaded barrel 11 drives the transmission gear 16 to rotate, and the transmission gear 16 and the incomplete gear 15 abut against each other and drive the incomplete gear 15 to rotate, and the incomplete gear 15 drives the arc rod 18 to rotate again through the first connecting rod 14, thereby causing the arc rod 18 to enter the rotating groove 13, until the transmission gear 16 is disconnected from the incomplete gear 15 again, and then, the threaded rod 10 and the first connecting plate 8 continue to move downward, the first connecting plate 8 squeezes the soil inside the sampling tube 4, and the soil falls from the through groove 5 onto the detection body 2, and the detection body 2 is started to perform the corresponding detection operation;

[0053] In the process of the first connecting plate 8 moving downward to compress the soil, the soil is discharged through the through groove 5. In this process, the threaded cylinder 11 is in a rotating state, and the threaded cylinder 11 drives the cam 27 to rotate. The cam 27 drives the arc plate 26 to move through the slide plate 28. Since the arc plate 26 and the sampling tube 4 are slidably connected, the spacing between the plurality of third connecting rods 23 is always in a changing state, and the spacing between the third connecting rods 23 is within a range. In the process of soil discharge, there are still substances with larger particles in the soil. The substances with a larger spacing than the maximum spacing of the third connecting rods 23 cannot enter the upper side of the detection body 2 due to the obstruction of the third connecting rods 23. Only substances with a smaller spacing than the maximum spacing of the third connecting rods 23 can pass through the third connecting rods 23. When these substances pass through the third connecting rods 23, since the third connecting rods 23 are always in a moving state, the moving third connecting rods 23 will also form a crushing effect on the substances therein, making them smaller, which is more convenient for subsequent detection operations.

[0054] When the soil is tested, after the first connecting plate 8 passes over the through slot 5, when the first connecting plate 8 and the mounting tube 32 abut against each other, the mounting tube 32 will move downward relative to the protective cover 7, and the mounting tube 32 drives the limiting ring 33 to move downward. The filter plate 31 will first follow the limiting ring 33 to move downward a distance, and when the connecting rod and the third spring 34 abut against each other, the third spring 34 will be compressed, and the pressure sensor will send out an electrical signal. At this time, the mounting tube 32 and the limiting ring 33 continue to move downward under the action of the first connecting plate 8 until the elastic force of the third spring is equal to the sum of the gravity of the filter plate 33, the sleeve and the larger material on the upper side of the filter plate 33. Then the pressure sensor sends out a constant electrical signal. 33 continues to move downward under the action of the first connecting plate 8, resulting in the disconnection between the limit ring 33 and the filter plate 31, wherein the finer soil passes through the filter plate 31 and moves downward with the limit ring 33, and the larger substances remain on the filter plate 31 under the obstruction of the filter plate 31 (this larger substance is also the substance with a diameter greater than the maximum spacing of the third connecting rod 23 as mentioned above), until the limit ring 33 and the fixing ring 30 are against each other, at this time all the finer soil passes through the filter plate 31, and the size of the electrical signal emitted by the pressure sensor is compared. If the electrical signal emitted by the pressure sensor is too large, it means that there are more larger substances, the quality of the soil sampled this time is average, and the quantity obtained in the experiment has a large error.

Claims

1. An automatic soil detection device for land engineering, comprising a housing and a plurality of detection bodies fixedly installed in the housing, characterized in that: A hydraulic rod is fixedly installed in the shell, and a sampling tube is fixedly installed at the output end of the hydraulic rod. A plurality of through grooves are opened on the side wall of the sampling tube, and a second connecting rod is fixedly connected in each through groove. A baffle is rotatably connected to the outer side of the second connecting rod, and a slot is opened on the outer side of the second connecting rod. A card block is slidably installed in the through groove, and a card rod is fixedly connected to the side wall of the card block, and the card rod and the slot match. A second spring is fixedly installed between the card block and the sampling tube, and a protective cover is threadedly connected to the outer side of the sampling tube. A protective assembly is installed in the sampling tube, and the protective assembly includes a first connecting plate slidably installed in the sampling tube, and a first spring is fixedly connected between the first connecting plate and the sampling tube. A plurality of arc rods are rotatably installed in the sampling tube, and the first connecting plate controls the rotation of the plurality of arc rods through a transmission assembly. A control assembly for controlling the size of the through groove opening is installed in the through groove, and the control assembly includes a plurality of third connecting rods, wherein one of the third connecting rods and The through groove is fixedly connected, and other third connecting rods are slidably connected to the through groove. A plurality of fourth connecting rods are installed above the sampling tube, and each fourth connecting rod and the third connecting rod are rotatably connected to a second connecting plate, and the second connecting plates are staggered. An arc plate is rotatably connected to the outer side of one of the third connecting rods, and a first annular groove is opened on the side wall of the arc plate. The arc plate and the sampling tube are slidably connected, and a slide plate is slidably connected in the first annular groove. A detection assembly is installed in the protective cover, and the detection assembly includes a fifth connecting rod fixedly installed in the protective cover, a fixing ring is fixedly connected to the outer side of the fifth connecting rod, and a mounting cylinder is threadedly connected to the upper side of the fifth connecting rod, a limiting ring is fixedly connected to the outer side of the mounting cylinder, and a filter plate is slidably connected to the upper side of the fixing ring, and a telescopic sleeve is also fixedly installed between the filter plate and the fixing ring, a third spring is fixedly installed in the telescopic sleeve, and a pressure sensor is also fixedly installed in the telescopic sleeve.

2. An automatic soil detection device for land engineering according to claim 1, characterized in that: The transmission assembly includes a plurality of threaded rods fixedly mounted on the upper side of the first connecting plate, the outer sides of the plurality of threaded rods are threadedly connected with a threaded barrel, the threaded barrel and the sampling tube are rotatably connected, a plurality of connecting grooves are opened on the inner wall of the sampling tube, the positions and numbers of the plurality of connecting grooves and the threaded barrel are relative, a plurality of rotating grooves are opened on the side wall of the sampling tube, the positions and numbers of the plurality of connecting grooves and the rotating grooves are relative, a plurality of first connecting rods are rotatably mounted in the sampling tube, one end of the plurality of first connecting rods extending into the connecting groove is fixedly connected with an incomplete gear, a transmission gear is fixedly connected to the outer side of the threaded barrel, the transmission gear and the incomplete gear are meshed, a torsion spring is fixedly connected between the incomplete gear and the connecting groove, and one end of the plurality of first connecting rods extending into the rotating groove is fixedly connected with an arc rod.

3. An automatic soil detection device for land engineering according to claim 2, characterized in that: The outer side of the threaded cylinder is fixedly connected with a cam, the outer side of the cam is provided with a second annular groove, and the slide plate is slidably connected with the second annular groove.

4. An automatic soil detection device for land engineering according to claim 3, characterized in that: The outer surface of the block is smooth.

5. An automatic soil detection device for land engineering according to claim 4, characterized in that: The lower end surface of the sampling tube is a smooth cone.

6. An automatic soil detection device for land engineering according to claim 5, characterized in that: A plurality of wheels are rotatably mounted on the outer side of the housing.

7. A detection method for automatic soil detection equipment for land engineering according to claim 6, characterized in that: The following steps are involved: S1. First, push the device as a whole to the sampling point, and then fix the device on the ground; S2, then, start the hydraulic rod and start the sampling operation; S3. After the sampling operation is completed, the hydraulic rod is started again to move the sampled soil into the housing; S4, start testing; S5. After the test is completed, the soil is discharged.

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