A soil testing device

Abstract

The utility model discloses a kind of soil detection equipment, it is related to soil detection technical field.The utility model includes shell, the top of shell is provided with screening assembly, screening assembly includes the multiple mounting posts of fixed connection on the outer wall of the both sides of shell, two screening frames are movably connected between mounting post, the inside of screening frame is all fixedly connected with screen, the top of mounting post is fixedly connected with mounting frame, the both sides of mounting frame are all fixedly connected with side plate.The utility model drives linear reciprocating motion in left and right directions to feeding hopper by threaded rod and second sliding block, soil sample is evenly added to the inside of screening frame in each place by feeding hopper, solve the problem that current soil sample is prone to accumulation, simultaneously, soil sample in quantitative tank is quantitatively aliquoted by baffle, and soil sample is added to the detection instrument below by baffle driven by rotating shaft, solve the problem that current soil sample is not convenient to be quantitatively added to the detection instrument.

Description

Technical Field

[0001] This utility model belongs to the field of soil testing technology, and in particular relates to a soil testing device. Background Technology

[0002] Soil testing refers to the process of determining the characteristics, composition, fertility status, and presence of pollutants in soil through a series of physical, chemical, and biological analytical methods. It is commonly used in fields such as agricultural production, greening, and environmental monitoring. A large number of devices are used in the soil testing process, which can be mainly divided into three types: on-site rapid testing instruments, laboratory precision analytical instruments, and other auxiliary equipment. A soil testing device is disclosed in document CN221832771U, comprising an equipment box, a first screening hopper, and a second screening hopper. Beneficial effects: The second screening hopper is located above the first screening hopper. When the vibration motor is activated, the first and second screening hoppers vibrate at high frequency, performing secondary screening of the soil. Qualified soil falls into the testing box for testing, avoiding the influence of gravel and impurities on the test results and improving the accuracy of the results. Unqualified soil and gravel and other debris remain in the first and second screening hoppers. The operator can easily remove the debris from the second screening hopper by flipping it over, and then flip the first screening hopper to remove the debris. After cleaning, the first and second screening hoppers can be flipped back to repeat the process. This method of cleaning is very convenient and quick, significantly improving the ease of use. However, it still has the following drawbacks in practical use: 1. The soil testing equipment described above has a first screening hopper and a second screening hopper on the top of the equipment box. The soil sample is screened through the first screening hopper and the second screening hopper to remove debris such as gravel and roots from the soil sample. However, during use, it is not convenient to add the soil sample evenly to the inside of the first screening hopper and the second screening hopper. The soil sample tends to accumulate in a localized area inside the first screening hopper and the second screening hopper, and the accumulation of the soil sample will affect the screening efficiency. 2. The soil testing equipment mentioned above has a testing box clamped inside the equipment box. Soil samples are taken and tested through the testing box. However, during use, it is not convenient to add soil samples quantitatively into the testing box, which makes it inconvenient to perform quantitative testing of soil samples. Consequently, the test results are affected by the number of soil samples.

[0003] To address these issues, we provide a soil testing device. Utility Model Content

[0004] The purpose of this invention is to provide a soil testing device that uses a threaded rod and a second slider to drive the feed hopper in a linear reciprocating motion in the left and right direction, thereby uniformly adding soil samples to various parts of the sieve frame through the feed hopper, solving the problem of soil samples easily accumulating in existing devices. At the same time, the device uses a partition to quantitatively divide the soil samples in the quantitative box into equal portions, and uses a rotating shaft to drive the partition to add the soil samples to the testing instrument below, solving the problem of the inconvenience of quantitatively adding soil samples to the testing instrument in existing devices.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a soil testing device, comprising a housing, a screening assembly at the top of the housing, the screening assembly including multiple mounting columns fixedly connected to the outer walls of both sides of the housing, two screening frames movably connected between the mounting columns, each screening frame having a screen fixedly connected inside, a mounting frame fixedly connected above the mounting columns, side plates fixedly connected to both sides of the mounting frames, a threaded rod rotatably connected inside the mounting frame, a second slider threadedly connected to the outer wall of the threaded rod, a feed hopper fixedly connected between two adjacent second sliders, pressure sensors fixedly connected to the outer walls of both sides of the feed hopper, and a metering assembly at the bottom of the housing, the metering assembly including a collection hopper fixedly connected to the bottom of the housing, a discharge pipe fixedly connected to the bottom of the collection hopper, a metering box fixedly connected to the bottom end of the discharge pipe, a rotating shaft rotatably connected inside the metering box, the rear end of the rotating shaft extending to the rear of the metering box and fixedly connected to a grooved wheel, a partition fixedly connected to the outer wall of the rotating shaft, the end of the partition away from the rotating shaft abutting against the inner wall of the metering box.

[0006] A further feature of this invention is as follows: a groove is provided on the outer wall of the mounting column, a sliding rod is fixedly connected inside the groove, a first slider is slidably sleeved on the upper and lower sides of the outer wall of the sliding rod, a connecting rod is fixedly connected to one side of the outer wall of the first slider, the end of the connecting rod away from the first slider extends to the outside of the groove and is fixedly connected to a U-shaped frame, the U-shaped frame is located between two adjacent mounting columns, and a return spring is sleeved on the outer side of the sliding rod, the return springs being located above and below the first slider respectively.

[0007] A further feature of this invention is that a first drive motor is fixedly connected to one side of the mounting column via a first motor frame, and an eccentric wheel is fixedly connected to the output shaft of the first drive motor, with the top of the eccentric wheel abutting against the bottom of the U-shaped frame.

[0008] A further feature of this invention is that L-shaped frames are fixedly connected to both sides of the bottom of the mounting frame, and the vertical support arms of the L-shaped frames are fixedly connected to the mounting columns.

[0009] A further feature of this invention is that one end of the threaded rod extends to the outside of the mounting frame and is fixedly connected to a first bevel gear. The first bevel gear is located on one side of the side plate. A dual-axis motor is fixedly connected to one of the side plates via a second motor frame. A drive rod is fixedly connected to the output shaft of the dual-axis motor. A second bevel gear is fixedly connected to the end of the drive rod away from the dual-axis motor. The second bevel gear meshes with one side of the first bevel gear.

[0010] A further feature of this invention is that: a mounting frame is fixedly connected to the upper part of the inside of the hopper via a mounting rod; a second drive motor is fixedly connected to the top of the mounting frame via a protective shell; the output shaft of the second drive motor extends to the lower part of the mounting frame and is fixedly connected to a connecting shaft; the bottom end of the connecting shaft extends to the inside of the discharge pipe and is fixedly connected to an auger rod.

[0011] A further feature of this invention is that a fixing rod is fixedly connected to the bottom of the hopper around its perimeter, and the top of the fixing rod is fixedly connected to the top of the metering box around its perimeter.

[0012] A further feature of this invention is that an electromagnetic brake is fixedly connected to the front end face of the metering box, the output shaft of the electromagnetic brake is fixedly connected to the front end of the rotating shaft, and a third drive motor is fixedly connected to one side of the rear end of the metering box via a third motor frame. A drive disc is fixedly connected to the output shaft of the third drive motor, and the drive disc meshes with one side of the grooved wheel.

[0013] This utility model has the following beneficial effects: 1. This utility model, by setting up a screening component, adds soil samples into the feeding hopper and starts a dual-shaft motor. The output shaft of the dual-shaft motor drives the drive rod to rotate. The drive rod drives the threaded rod to rotate through the first bevel gear and the second bevel gear. The threaded rod drives the feeding hopper to move through the second slider. During the movement of the feeding hopper, the soil samples in the feeding hopper are evenly added to various parts of the screening frame, which facilitates the uniform feeding of soil samples, avoids soil sample accumulation, and facilitates the screening of soil samples, thereby facilitating the screening and testing of soil samples.

[0014] 2. This utility model, by setting up a quantitative component, first adds a quantitative amount of soil sample from the collection hopper to the quantitative box via an auger rod, and distributes it evenly between the partitions. Then, the third drive motor is started, and the output shaft of the third drive motor drives the drive disc to rotate. The drive disc drives the rotating shaft to rotate via a grooved wheel, and the rotating shaft drives the partitions to rotate. The soil sample in the quantitative box is transported to the outlet of the quantitative box through the partitions. Finally, it is added to the detection instrument below the quantitative box for detection, realizing the quantitative addition of soil sample to the detection instrument, which facilitates the detection of soil sample. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

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

[0017] Figure 2 This is a schematic diagram of the structure of the screening component of this utility model.

[0018] Figure 3 This is a structural disassembly diagram of the mounting column of this utility model.

[0019] Figure 4 This is a structural disassembly diagram of the mounting frame and feed hopper of this utility model.

[0020] Figure 5 This is a schematic diagram of the quantitative component of this utility model.

[0021] Figure 6 This is a structural disassembly diagram of the auger rod of this utility model.

[0022] Figure 7 This is a structural disassembly diagram of the rotating shaft of this utility model.

[0023] The attached diagram lists the components represented by each number as follows: 1-Housing, 2-Screening assembly, 201-Mounting column, 201a-Slide groove, 201b-Slide rod, 201c-Reset spring, 202-Screening frame, 202a-Screen, 203-U-shaped frame, 203a-First slider, 203b-Connecting rod, 204-Eccentric wheel, 204a-First motor frame, 204b-First drive motor, 205-Mounting frame, 205a-L-shaped frame, 206-Side plate, 207-Threaded rod, 207a-First bevel gear, 207b-Second slider, 208-Feed hopper, 208a-Pressure sensor, 209-Drive... 209a-Second motor frame, 209b-Dual-shaft motor, 209c-Second bevel gear, 3-Quantitative assembly, 301-Collection hopper, 301a-Discharge pipe, 302-Quantitative box, 302a-Fixing rod, 303-Auger rod, 303a-Mounting frame, 303b-Mounting rod, 303c-Protective shell, 303d-Second drive motor, 303e-Connecting shaft, 304-Rotating shaft, 304a-Gate wheel, 304b-Electromagnetic brake, 305-Partition plate, 306-Third drive motor, 306a-Third motor frame, 306b-Drive disc. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Example 1 Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this is the first embodiment of the present invention. This embodiment provides a soil testing device, including a housing 1. The top of the housing 1 is provided with a screening component 2 for screening soil samples. The screening component 2 includes a mounting column 201, a screening frame 202, a mounting frame 205, a side plate 206, a threaded rod 207, and a feed hopper 208. The threaded rod 207 and the second slider 207b drive the feed hopper 208 to perform linear reciprocating motion in the left and right direction, thereby uniformly adding soil samples to various parts of the interior of the screening frame 202 through the feed hopper 208, solving the problem of easy accumulation of existing soil samples.

[0026] Specifically, four mounting columns 201 are provided and fixedly connected to the front and rear ends of the outer walls on both sides of the housing 1. The bottom ends of the mounting columns 201 are fixed to the housing 1 with bolts. The mounting columns 201 are used to install structures such as the screening frames 202. Two screening frames 202 are movably connected between the mounting columns 201. Each screening frame 202 has a screen 202a fixedly connected inside. The screening frames 202 are used to install the screen 202a. The screen 202a is preferably nylon mesh. The screen 202a is used to screen soil samples. A mounting frame 205 is fixedly connected to the top of the mounting column 201. The mounting frame 205 is used to install structures such as the threaded rod 207 and to support the second slider 207b. Side plates 206 are fixedly connected to both sides of the mounting frame 205. The side plates 206 are used to limit the movement of the feed hopper 208. The threaded rod 207 is rotatably connected inside the mounting frame 205. The second slider 207b is threadedly connected to the outer wall of the threaded rod 207. The threaded rod 207 and the second slider 207b are used to drive the feed. The feed hopper 208 moves. When the threaded rod 207 rotates clockwise, the second slider 207b drives the feed hopper 208 to move to the left. When the threaded rod 207 rotates counterclockwise, the second slider 207b drives the feed hopper 208 to move to the right. The feed hopper 208 is fixedly connected between two adjacent second sliders 207b. The feed hopper 208 is used to add soil samples into the sieve frame 202 for sieving. Pressure sensors 208a are fixedly connected to the outer walls on both sides of the feed hopper 208. The pressure sensors 208a are electrically connected to the dual-axis motor 209b. Next, the pressure sensor 208a controls the switching and rotation direction of the dual-axis motor 209b. When the pressure sensor 208a on the left side of the feed hopper 208 contacts the side plate 206, the pressure sensor 208a controls the dual-axis motor 209b to reverse. At this time, the dual-axis motor 209b drives the threaded rod 207 to reverse. When the pressure sensor 208a on the right side of the feed hopper 208 contacts the side plate 206, the pressure sensor 208a controls the dual-axis motor 209b to rotate forward. At this time, the dual-axis motor 209b drives the threaded rod 207 to rotate forward.

[0027] Furthermore, a groove 201a is formed on the outer wall of the mounting column 201. A sliding rod 201b is fixedly connected inside the groove 201a. The length direction of the groove 201a is along the length direction of the mounting column 201. The groove 201a is designed to install the sliding rod 201b. A first slider 203a is slidably fitted on both the upper and lower sides of the outer wall of the sliding rod 201b. The sliding rod 201b is designed to install the first slider 203a. A connecting rod 203b is fixedly connected to one side of the outer wall of the first slider 203a. The end of the connecting rod 203b away from the first slider 203a extends to the outside of the groove 201a and is fixedly connected to a U-shaped frame 203. The U-shaped frame 203 is located at... Between two adjacent mounting columns 201, the other side outer wall of the first slider 203a is fixedly connected to the front and rear ends of the outer walls on both sides of the screening frame 202. The first slider 203a is used to movably mount the screening frame 202 on the mounting column 201. The connecting rod 203b is used to connect the first slider 203a and the U-shaped frame 203. The U-shaped frame 203 is used to drive the first slider 203a to move. A return spring 201c is sleeved on the outside of the slider 201b. The return spring 201c is located above and below the first slider 203a. The return spring 201c is used to drive the first slider 203a to move spontaneously to the initial position. A first drive motor 204b is fixedly connected to one side of the mounting column 201 via a first motor frame 204a. An eccentric wheel 204 is fixedly connected to the output shaft of the first drive motor 204b. The top of the eccentric wheel 204 abuts against the bottom of the U-shaped frame 203. The eccentric wheel 204 is designed to periodically apply external force to the U-shaped frame, thereby cooperating with the return spring 201c and the gravity of the screening frame 202 itself, causing the screening frame 202 to perform linear reciprocating motion in the up and down direction. The first motor frame 204a is designed to mount the first drive motor 204b, and the first drive motor 204b is designed to drive the eccentric wheel 204 to rotate. L-shaped frames 205a are fixedly connected to both sides of the bottom of the mounting frame 205. The vertical support arms of the L-shaped frames 205a are fixedly connected to the mounting column 201, and the L-shaped frames 205a are designed to mount the mounting frame 205. One end of the threaded rod 207 extends to the outside of the mounting frame 205 and is fixedly connected to a first bevel gear 207a. The first bevel gear 207a is located on one side of the side plate 206. The first bevel gear 207a is used to drive the threaded rod 207 to rotate. A dual-axis motor 209b is fixedly connected to one side plate 206 via a second motor frame 209a. The output shaft of the dual-axis motor 209b is fixedly connected to a drive rod 209. The end of the drive rod 209 away from the dual-axis motor 209b is fixedly connected to a second bevel gear 209c. The second bevel gear 209c meshes with one side of the first bevel gear 207a. The drive rod 209 is used to drive the threaded rod 207 to rotate. The first bevel gear 207a and the second bevel gear 209c are used to realize the transmission between the drive rod 209 and the threaded rod 207. The second motor frame 209a is used to mount the dual-axis motor 209b. The dual-axis motor 209b is used to drive the drive rod 209 to rotate.

[0028] The operation process of this embodiment is as follows: Soil samples are added to the feed hopper 208, and the dual-axis motor 209b is started. The output shaft of the dual-axis motor 209b drives the drive rod 209 to rotate. The drive rod 209 drives the threaded rod 207 to rotate through the first bevel gear 207a and the second bevel gear 209c. The threaded rod 207 drives the feed hopper 208 to move through the second slider 207b. During the movement of the feed hopper 208, the soil samples in the feed hopper 208 are evenly added to various parts of the sieve frame 202. Then... The second drive motor 303d is started, and the output shaft of the second drive motor 303d drives the eccentric wheel 204 to rotate. The eccentric wheel 204 applies an external force to the U-shaped frame, which causes the U-shaped frame to drive the first slider 203a and the sieve frame 202 to reciprocate in the up and down direction. The soil sample is sieved through the sieve frame 202 and the sieve 202a. The sieved soil sample falls into the shell 1. Finally, the soil sample is quantitatively divided equally through the shell 1, and the equalized soil sample is added to the detection instrument for soil testing.

[0029] Example 2 Please see Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, this is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but differs from the previous embodiment in that: a quantitative component 3 for equally dividing soil samples is provided at the bottom of the shell 1. The quantitative component 3 includes a collection hopper 301, a quantitative box 302, a rotating shaft 304, and a partition 305. The soil sample in the quantitative box 302 is quantitatively divided equally by the partition 305, and the soil sample is added to the detection instrument below by the rotating shaft 304 driving the partition 305. This solves the problem that it is inconvenient to quantitatively add soil samples to the detection instrument.

[0030] Specifically, the collection hopper 301 is fixedly connected to the bottom of the shell 1. The collection hopper 301 has an inverted conical structure and is used to collect the sieved soil samples. A discharge pipe 301a is fixedly connected to the bottom of the collection hopper 301. The discharge pipe 301a is used to introduce the collected soil samples into the quantitative container 302. The bottom end of the discharge pipe 301a is fixedly connected to the quantitative container 302. The quantitative container 302 has a cylindrical structure and a discharge port at its bottom. Soil measuring instruments such as a soil pH meter, a soil nutrient rapid tester, and an organic matter analyzer are also installed below the quantitative container 302. The quantitative container 302 is used to quantitatively and evenly distribute the sieved soil samples. A rotating mechanism is rotatably connected inside the quantitative container 302. The rear end of the rotating shaft 304 extends to the rear of the quantitative container 302 and is fixedly connected to a grooved wheel 304a. The rotating shaft 304 is used to install the partition 305 and drive the partition 305 to rotate. The grooved wheel 304a is used to drive the rotating shaft 304 to rotate. The partition 305 is fixedly connected to the outer wall of the rotating shaft 304. The end of the partition 305 away from the rotating shaft 304 is attached to the inner side wall of the quantitative container 302. Four partitions 305 are arranged in a circular array and fixedly connected to the rotating shaft 304 at equal intervals. The partitions 305 are used to evenly divide the internal space of the quantitative container 302. During the rotation of the partitions 305, the partitions 305 will drive the soil sample to move towards the outlet of the quantitative container 302.

[0031] Furthermore, a mounting bracket 303a is fixedly connected to the upper interior of the collection hopper 301 via a mounting rod 303b. A second drive motor 303d is fixedly connected to the top of the mounting bracket 303a via a protective shell 303c. The mounting bracket 303a is designed to protect the second drive motor 303d, and the protective shell 303c is designed to protect the second drive motor 303d. The top of the protective shell 303c is conical to prevent soil residue from remaining on it. The output shaft of the second drive motor 303d extends... A connecting shaft 303e extends to the bottom of the mounting frame 303a and is fixedly connected thereto. The bottom end of the connecting shaft 303e extends into the interior of the discharge pipe 301a and is fixedly connected to the auger rod 303. The second drive motor 303d is configured to drive the connecting shaft 303e to rotate. The connecting shaft 303e is configured to install the auger rod 303 and drive the auger rod 303 to rotate. The auger rod 303 is configured to transport the soil sample in the collection hopper 301 to the quantitative box 302 through the discharge pipe 301a. The bottom of the collecting hopper 301 is fixedly connected to the four sides of the bottom with fixing rods 302a. The top of the fixing rods 302a is fixedly connected to the top of the metering box 302. The fixing rods 302a are used to install and fix the metering box 302. An electromagnetic brake 304b is fixedly connected to the front end face of the metering box 302. The output shaft of the electromagnetic brake 304b is fixedly connected to the front end of the rotating shaft 304. The electromagnetic brake 304b is used to limit the rotation of the rotating shaft 304. A third drive motor 306 is fixedly connected to one side of the rear end of the metering box 302 via a third motor frame 306a. A drive disk 306b is fixedly connected to the output shaft of the third drive motor 306. The drive disk 306b meshes with one side of the Geneva wheel 304a. The third drive motor 306 and the drive disk 306b are used to drive the Geneva wheel 304a to rotate periodically. The third motor frame 306a is used to install the third drive motor 306.

[0032] The rest of the structure is the same as in Example 1.

[0033] The operation process of this embodiment is as follows: the soil sample in the housing 1 falls into the collection hopper 301, and the second drive motor 303d is started. The output shaft of the second drive motor 303d drives the connecting shaft 303e to rotate. The connecting shaft 303e drives the auger rod 303 to rotate. During the rotation of the auger rod 303, the soil sample in the collection hopper 301 is added to the quantitative box 302 through the discharge pipe 301a. Then, the second drive motor 303d is turned off and the third drive motor 306 is started. The output shaft of the third drive motor 306 drives the drive disk 306b to rotate. The drive disk 306b drives the rotating shaft 304 to rotate through the grooved wheel 304a. The rotating shaft 304 drives the partition 305 to rotate. The soil sample in the quantitative box 302 is transported to the discharge port of the quantitative box 302 through the partition 305. Finally, it is added to the detection instrument below the quantitative box 302 for detection.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A soil testing device, comprising a housing (1), characterized in that: The top of the housing (1) is provided with a screening assembly (2), and the screening assembly (2) includes multiple mounting columns (201) fixedly connected to the outer walls of both sides of the housing (1). Two screening frames (202) are movably connected between the mounting columns (201), and screens (202a) are fixedly connected inside the screening frames (202). A mounting frame (205) is fixedly connected above the mounting columns (201), and side plates (206) are fixedly connected to both sides of the mounting frame (205). A threaded rod (207) is rotatably connected inside the mounting frame (205), and a second slider (207b) is threadedly connected to the outer wall of the threaded rod (207). A feed hopper (208) is fixedly connected between two adjacent second sliders (207b). Pressure sensors (208a) are fixedly connected to both outer walls of the housing (1). A metering component (3) is provided at the bottom of the housing (1). The metering component (3) includes a hopper (301) fixedly connected to the bottom of the housing (1). The bottom of the hopper (301) is fixedly connected to a discharge pipe (301a). The bottom end of the discharge pipe (301a) is fixedly connected to a metering box (302). A rotating shaft (304) is rotatably connected inside the metering box (302). The rear end of the rotating shaft (304) extends to the rear of the metering box (302) and is fixedly connected to a grooved wheel (304a). A partition (305) is fixedly connected to the outer wall of the rotating shaft (304). The end of the partition (305) away from the rotating shaft (304) is attached to the inner side wall of the metering box (302).

2. The soil testing equipment according to claim 1, characterized in that, A sliding groove (201a) is provided on the outer wall of the mounting post (201), and a sliding rod (201b) is fixedly connected inside the sliding groove (201a). A first slider (203a) is slidably sleeved on both the upper and lower sides of the outer wall of the sliding rod (201b). A connecting rod (203b) is fixedly connected on one side of the outer wall of the first slider (203a). The end of the connecting rod (203b) away from the first slider (203a) extends to the outside of the sliding groove (201a) and is fixedly connected to a U-shaped frame (203). The U-shaped frame (203) is located between two adjacent mounting posts (201). A return spring (201c) is sleeved on the outer side of the sliding rod (201b), and the return spring (201c) is located above and below the first slider (203a).

3. The soil testing equipment according to claim 2, characterized in that, One side of the mounting column (201) is fixedly connected to a first drive motor (204b) via a first motor frame (204a), and the output shaft of the first drive motor (204b) is fixedly connected to an eccentric wheel (204), the top of which is abutted against the bottom of the U-shaped frame (203).

4. The soil testing equipment according to claim 1, characterized in that, Both sides of the bottom of the mounting frame (205) are fixedly connected to L-shaped frames (205a), and the vertical support arms of the L-shaped frames (205a) are fixedly connected to the mounting column (201).

5. A soil testing device according to claim 1, characterized in that, One end of the threaded rod (207) extends to the outside of the mounting frame (205) and is fixedly connected to a first bevel gear (207a). The first bevel gear (207a) is located on one side of the side plate (206). A dual-axis motor (209b) is fixedly connected to one of the side plates (206) via a second motor frame (209a). The output shaft of the dual-axis motor (209b) is fixedly connected to a drive rod (209). The end of the drive rod (209) away from the dual-axis motor (209b) is fixedly connected to a second bevel gear (209c). The second bevel gear (209c) meshes with one side of the first bevel gear (207a).

6. The soil testing equipment according to claim 1, characterized in that, The upper part of the hopper (301) is fixedly connected to the mounting frame (303a) by the mounting rod (303b), and the top of the mounting frame (303a) is fixedly connected to the second drive motor (303d) by the protective shell (303c). The output shaft of the second drive motor (303d) extends to the lower part of the mounting frame (303a) and is fixedly connected to the connecting shaft (303e). The bottom end of the connecting shaft (303e) extends to the interior of the discharge pipe (301a) and is fixedly connected to the auger rod (303).

7. A soil testing device according to claim 1, characterized in that, The bottom of the hopper (301) is fixedly connected to a fixing rod (302a) around its perimeter, and the top of the fixing rod (302a) is fixedly connected to the top perimeter of the metering box (302).

8. A soil testing device according to claim 1, characterized in that, An electromagnetic brake (304b) is fixedly connected to the front end face of the metering box (302), and the output shaft of the electromagnetic brake (304b) is fixedly connected to the front end of the rotating shaft (304). A third drive motor (306) is fixedly connected to one side of the rear end of the metering box (302) through a third motor frame (306a), and a drive disc (306b) is fixedly connected to the output shaft of the third drive motor (306). The drive disc (306b) meshes with one side of the Geneva wheel (304a).

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