A soil quality stratification detection device

Abstract

The present invention discloses a device for detecting soil quality stratification, comprising: a mounting frame, a fixing device, a lifting device, a drilling device, an elastic detection device and a pushing device. Among them, the fixing device is arranged on both sides of the bottom of the mounting frame; the lifting device is arranged on the mounting frame; the drilling device is arranged on the lifting end of the lifting device, and a through hole is provided on the drilling device; the detection end of the elastic detection device is elastically arranged in the drilling device and seals the through hole; the pushing device is arranged in the drilling device, and the pushing device includes a conical extrusion head that can move up and down, and a plurality of annular grooves are provided on the extrusion head from top to bottom; the extrusion head abuts against the elastic detection device, so as to push the end of the elastic detection device along the through hole horizontally out of the drilling device by lifting the extrusion head. The present invention can enable the detection end of the elastic detection device to insert into or pull out of the soil in a segmented manner, effectively reducing the bending, deformation or even damage of the probe.

Description

Technical Field

[0001] The present invention relates to the technical field of soil detection, and in particular to a device for detecting soil quality stratification. Background Art

[0002] With the development of modern agriculture, environmental science, and geological engineering, the accurate assessment of soil quality has become increasingly important. As a key means of evaluating soil health status, the accuracy of soil quality stratification detection technology directly affects the effects of agricultural planting, environmental protection, and land resource management.

[0003] In related technologies, to achieve stratification detection of soil at different depths, usually a probe is built into an insertion rod. After the insertion rod is inserted into the soil to reach the target position, the probe is horizontally pushed out from the insertion rod through a linkage mechanism to be horizontally inserted into the soil for detection.

[0004] For example, a layered temperature sensor with the invention number CN202310651537.3 and a detection device for environmental pollution control with the invention number CN201920962165.5 both use a hinged linkage mechanism to achieve the pushing out of the probe.

[0005] However, in the above-mentioned method, when detecting the quality of deep soil, due to the large pressure of the upper soil on the deep soil, the voids between soil particles decrease, and the soil becomes denser. When the probe is horizontally inserted into this dense soil, the soil particles will generate a large frictional force on the probe. When the linkage in the above-mentioned hinged manner is forced to mechanically pull, it will cause the probe to bend, deform, or even be damaged (that is, the solder joint between the detection head at the front end of the probe and the sensor at the rear end breaks, resulting in detachment), affecting subsequent detection. Summary of the Invention

[0006] The present invention aims to solve at least one of the technical problems in the above technologies to a certain extent.

[0007] To achieve the above object, a soil quality layered detection device is proposed in the first aspect of the present invention, including: a mounting frame, a fixing device, a lifting device, a drilling device, an elastic detection device and a pushing device. Among them, the fixing device is arranged on both sides of the bottom of the mounting frame; the lifting device is arranged on the mounting frame; the drilling device is arranged on the lifting end of the lifting device, and a through hole is provided on the drilling device; the detection end of the elastic detection device is elastically arranged in the drilling device and blocks the through hole; the pushing device is arranged in the drilling device, the pushing device includes a conical extrusion head that can move up and down, and a plurality of annular grooves are provided on the extrusion head from top to bottom; the extrusion head abuts against the elastic detection device, so that through the lifting of the extrusion head, the end of the elastic detection device is extruded, and the detection end of the elastic detection device is horizontally pushed out of the drilling device along the through hole.

[0008] In addition, the soil quality layered detection device proposed above according to the present invention may further have the following additional technical features:

[0009] As a further description of the above technical solution: the elastic detection device includes a fixed column, a probe, an insulating head and a spring. Among them, the fixed column is arranged in the drilling device, and the through hole penetrates the fixed column; one end of the probe is connected to the insulating head, and the other end is slidably arranged in the fixed column; the spring is sleeved outside the fixed column, and one end of the spring is connected to the insulating head, and the other end is connected to the inner wall of the drilling device; among them, the insulating head abuts against the extrusion head.

[0010] As a further description of the above technical solution: the pushing device further includes a fixing plate and an electric push rod. Among them, the fixing plate is arranged in the drilling device; the electric push rod is arranged on the fixing plate; the extrusion head is connected to the telescopic end of the electric push rod.

[0011] As a further description of the above technical solution: a plurality of the elastic detection devices are arranged at equal angles at the same horizontal height to form an elastic detection unit. A plurality of elastic detection units are arranged in sequence from top to bottom. The number of the plurality of extrusion heads corresponds to the plurality of elastic detection units one by one, and the plurality of extrusion heads are connected end to end in sequence.

[0012] As a further description of the above technical solution: a vertically downward extending portion is provided on the extrusion head at the bottommost part, and a stabilizing plate is arranged in the lower part of the drilling device, and the extending portion penetrates the stabilizing plate.

[0013] As a further description of the above technical solution: The lifting device includes a bidirectional lead screw, a first driving motor, a lead screw slider, a transmission structure, and a mounting plate. Among them, the two bidirectional lead screws are relatively arranged on both sides of the mounting frame; the two lead screw sliders are respectively arranged on the corresponding bidirectional lead screws; the transmission structure connects the two bidirectional lead screws; the output end of the first driving motor is connected to one of the bidirectional lead screws; both ends of the mounting plate are respectively connected to the two lead screw sliders.

[0014] As a further description of the above technical solution: The drilling device includes a second driving motor, a spiral transmission sleeve, and a drill bit. Among them, the second driving motor is arranged on the lifting end of the lifting device; the spiral transmission sleeve is arranged on the output end of the second driving motor; the drill bit is detachably arranged at the bottom of the spiral transmission sleeve and blocks the bottom opening of the spiral transmission sleeve.

[0015] As a further description of the above technical solution: The fixing device includes a rotating arm, a pin, and a damping knob. Among them, an ear plate is arranged at the bottom of the mounting frame; one end of the rotating arm is rotatably arranged on the ear plate and locked by the damping knob; the pin is movably arranged at the other end of the rotating arm.

[0016] As a further description of the above technical solution: A controller is also arranged on the mounting frame, and the lifting device, the drilling device, the elastic detection device, and the pushing device are respectively connected to the controller.

[0017] According to the soil quality stratification detection device of the present invention, through the conical design of the extrusion head and the opening of the annular groove, when the elastic detection device passes through multiple annular grooves in sequence, it can not only generate multiple vibration effects, but also the detection end of the elastic detection device can perform multiple short-distance rebounds under the action of elasticity, so that the detection end of the elastic detection device can be inserted into the soil in a segmented manner. Compared with inserting into the soil at one time, the frictional resistance of the detection end of the elastic detection device is smaller. When the detection end of the elastic detection device is reset, it can effectively reduce the bending, deformation, and even damage of the probe.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easy to understand from the following description of the embodiments in conjunction with the drawings, in which:

[0020] Figure 1 is a schematic structural diagram of a soil quality stratification detection device according to an embodiment of the present invention;

[0021] Figure 2 It is a schematic diagram of the partial A enlarged structure according to an embodiment of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the lifting device according to an embodiment of the present invention;

[0023] Figure 4 It is an installation schematic diagram of the soil quality stratification detection device according to an embodiment of the present invention;

[0024] Figure 5 It is a schematic diagram of the internal structure of the spiral transmission sleeve according to an embodiment of the present invention;

[0025] Figure 6 It is a schematic diagram of the partial B enlarged structure according to an embodiment of the present invention;

[0026] Figure 7 It is a schematic diagram of the internal structure of the spiral transmission sleeve according to another embodiment of the present invention;

[0027] Figure 8 It is a schematic diagram of the partial C enlarged structure according to an embodiment of the present invention;

[0028] Figure 9 It is a schematic diagram of the internal structure of the spiral transmission sleeve according to another embodiment of the present invention;

[0029] As shown in the figure:

[0030] 100, mounting frame; 101, ear plate; 102, through groove; 200, fixing device; 210, rotating arm; 220, pin; 230, damping knob; 300, lifting device; 310, bidirectional lead screw; 320, first driving motor; 330, lead screw nut; 340, transmission structure; 350, mounting plate; 400, drilling device; 401, through hole; 410, second driving motor; 420, spiral transmission sleeve; 430, drill bit; 500, elastic detection device; 510, fixing column; 520, probe; 530, insulating head; 540, spring; 600, pushing device; 601, extension part; 602, stabilizing plate; 610, fixing plate; 620, electric push rod; 630, extrusion head; 631, annular groove; 700, controller. Detailed implementation manners

[0031] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, but should not be construed as a limitation of the present invention.

[0032] The soil quality stratification detection device according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0033] As Figure 1 and Figure 4 shown, the soil quality stratification detection device according to the embodiments of the present invention may include a mounting frame 100, a fixing device 200, a lifting device 300, a drilling device 400, an elastic detection device 500, and a pushing device 600.

[0034] Among them, the fixing device 200 is arranged on both sides of the bottom of the mounting frame 100. The fixing device 200 is fixed around the soil to be detected to ensure the stability of the mounting frame 100.

[0035] The lifting device 300 is arranged on the mounting frame 100. The drilling device 400 is arranged on the lifting end of the lifting device 300. A through hole 401 is formed in the drilling device 400. As Figure 5 and Figure 6 shown, the detection end of the elastic detection device 500 is elastically arranged in the drilling device 400 and blocks the through hole 401.

[0036] The pushing device 600 is arranged in the drilling device 400. The pushing device 600 includes a conical extrusion head 630 that can move up and down. A plurality of annular grooves 631 are formed in the extrusion head 630 from top to bottom. The extrusion head 630 abuts against the elastic detection device 500. As Figure 7 and Figure 8 shown, by lifting and lowering the extrusion head 630, the end of the elastic detection device 500 is extruded, and the detection end of the elastic detection device 500 is horizontally pushed out of the drilling device 400 along the through hole 401.

[0037] It should be noted that when the drilling device 400 performs a drilling operation, the bottom of the extrusion head 630 abuts against the elastic detection device 500. Due to the conical structure of the extrusion head 630, at this position, the detection end of the elastic detection device 500 blocks the through hole 401 and does not extend out of the drilling device 400 to prevent soil from entering the drilling device 400 through the through hole 401 during the drilling operation.

[0038] Specifically, when relevant staff detect the soil quality, first use the fixing device 200 to stably place the entire detection device in the area to be detected. The fixing device 200 is arranged on both sides of the bottom of the mounting frame 100 to ensure that the device does not displace during the operation.

[0039] Then, start the lifting device 300 and the drilling device 400, so that the drilling device 400 moves downward under the action of the lifting device 300 to drill a hole, forming a hole with a predetermined diameter and depth in the soil. During this process, the elastic detection device 500 inside the drilling device 400 remains stationary, and the detection end of the elastic detection device 500 seals the through hole 401 on the drilling device 400 to prevent soil from entering the inside of the drilling device 400.

[0040] When the drilling is completed, the relevant staff start the pushing device 600, so that the conical extrusion head 630 moves downward, gradually squeezing the end of the elastic detection device 500. Since the extrusion head 630 is provided with a plurality of annular grooves 631 from top to bottom, during the downward movement of the extrusion head 630, the elastic detection device 500 always abuts against the extrusion head 630 due to its elastic action.

[0041] When the first annular groove 631 at the bottommost part of the extrusion head 630 contacts the elastic detection device 500, due to the concave structure of the annular groove 631, the elastic detection device 500 is reset into the annular groove 631 due to the reset action of its own elasticity, realizing a short-distance rebound of the elastic detection device 500. When rebounding, it impacts the annular groove 631, generating an impact vibration, which further reduces the friction force between the soil and the detection end of the elastic detection device 500.

[0042] After passing through the first annular groove 631 at the bottommost part, as the extrusion head 630 continues to descend, the elastic detection device 500 is continuously pushed out. Each time it passes through an annular groove 631, the elastic detection device 500 has a short-distance rebound and vibration, realizing a multi-stage progressive pushing of the elastic detection device 500 into the soil. Compared with a one-time push, due to the multiple rebounds and vibrations of the elastic detection device 500, an insertion hole can be gradually formed in the soil, reducing the instantaneous compression of the soil, thereby reducing the friction force of the soil on the elastic detection device 500.

[0043] When the top of the extrusion head 630 abuts against the end of the elastic detection device 500, the detection end of the elastic detection device 500 successfully inserts into the soil, and the built-in sensor starts to collect various physical parameters of the soil, such as humidity, temperature, density, etc., and transmits these data back to the control system for analysis and processing.

[0044] After the detection is completed, the relevant staff control the pushing device 600 to reset, that is, the extrusion head 630 rises and resets. Since the friction force between the detection end of the elastic detection device 500 and the soil is small and is combined with the reset of its own elastic action, the detection end of the elastic detection device 500 is reset back into the through hole 401 again to seal the through hole 401 again.

[0045] Next, the relevant staff control the lifting device 300 to drive the drilling device 400 to reset, preparing for the next detection.

[0046] In an embodiment of the present invention, the elastic detection device 500 includes a fixed column 510, a probe 520, an insulating head 530, and a spring 540.

[0047] Among them, the fixed column 510 is arranged inside the drilling device 400, the through hole 401 penetrates the fixed column 510, one end of the probe 520 is connected to the insulating head 530, and the other end is slidably arranged inside the fixed column 510. The spring 540 is sleeved outside the fixed column 510, and one end of the spring 540 is connected to the insulating head 530, and the other end is connected to the inner wall of the drilling device 400. Among them, the insulating head 530 abuts against the extrusion head 630.

[0048] It should be noted that the probe 520 includes a detection head at the front end and an integrated sensor at the rear end to measure various parameters such as soil humidity, temperature, and conductivity. In addition, considering the complexity of the soil environment, the probe 520 is made of corrosion-resistant materials, ensuring the stability and durability of long-term use.

[0049] Specifically, when no detection is carried out, the probe 520 is inside the drilling device 400, the spring 540 remains in its natural state, and the insulating head 530 closely adheres to the inner wall of the drilling device 400, blocking the through hole 401.

[0050] When soil detection is required, the extrusion head 630 of the pushing device 600 moves downward, contacts and presses the insulating head 530. As the extrusion force increases, the insulating head 530 drives the probe 520 to move outward along the through hole 401 in the fixed column 510 until the probe 520 completely extends out of the drilling device 400 and enters the soil. At this time, the spring 540 is compressed to the maximum.

[0051] After the probe 520 extends into the soil, it starts to collect various parameters of the soil and transmits the data to the control system for analysis through the internal circuit. After the data collection is completed, the extrusion head 630 of the pushing device 600 moves upward to reduce the pressure on the insulating head 530. At this time, the spring 540 resets due to compression, pulling the insulating head 530 and the probe 520 back to the initial position, and the through hole 401 is closed again.

[0052] In an embodiment of the present invention, the pushing device 600 further includes a fixing plate 610 and an electric push rod 620.

[0053] Among them, the fixing plate 610 is arranged inside the drilling device 400, the electric push rod 620 is arranged on the fixing plate 610, and the extrusion head 630 is connected to the telescopic end of the electric push rod 620.

[0054] It should be noted that relevant staff can control the electric push rod 620 to make the electric push rod 620 push the extrusion head 630 to rise and fall, so as to realize the extension or retraction of the detection end of the elastic detection device 500.

[0055] In an embodiment of the present invention, a plurality of elastic detection devices 500 are equiangularly arranged at the same horizontal height to form an elastic detection unit. A plurality of elastic detection units are arranged in sequence from top to bottom. The number of a plurality of extrusion heads 630 corresponds one by one to the plurality of elastic detection units, and the plurality of extrusion heads 630 are connected end to end in sequence.

[0056] It should be noted that one extrusion head 630 can simultaneously extrude a plurality of elastic detection devices 500 in the same elastic detection unit synchronously, so that the plurality of elastic detection devices 500 can simultaneously detect the soil at different positions of this layer, so as to improve the detection accuracy.

[0057] To further improve the stability of the pushing device 600 during operation, as Figure 9 shown, a vertically downward extending portion 601 is provided on the extrusion head 630 at the bottommost part, and a stabilizing plate 602 is provided inside the lower part of the drilling device 400, and the extending portion 601 penetrates through the stabilizing plate 602.

[0058] In an embodiment of the present invention, as Figure 3 shown, the lifting device 300 includes a bidirectional lead screw 310, a first driving motor 320, a lead screw slider 330, a transmission structure 340 and a mounting plate 350.

[0059] Among them, two bidirectional lead screws 310 are arranged oppositely on both sides of the mounting frame 100, two lead screw sliders 330 are respectively arranged on the corresponding bidirectional lead screws 310, the transmission structure 340 connects the two bidirectional lead screws 310, the output end of the first driving motor 320 is connected to one of the bidirectional lead screws 310, and both ends of the mounting plate 350 are connected to the two lead screw sliders 330. Among them, the drilling device 400 is arranged on the mounting plate 350.

[0060] It should be noted that when relevant staff control the lifting device 300 to lift, first the first driving motor 320 is started, and its output end drives one of the bidirectional lead screws 310 to rotate, drives the other bidirectional lead screw 310 to rotate synchronously through the transmission structure 340, ensures the movement of the two lead screws is consistent. As the bidirectional lead screw 310 rotates, the lead screw slider 330 moves along the axial direction of the lead screw. Since the lead screw slider 330 is connected to the mounting plate 350, the mounting plate 350 moves up and down accordingly.

[0061] Both ends of the mounting plate 350 are respectively connected to the two lead screw sliders 330. Therefore, driven by the two lead screw sliders 330, the mounting plate 350 moves up and down in a horizontal state, driving the drilling device 400 to lift and lower, realizing precise control of the drilling depth.

[0062] In an embodiment of the present invention, the drilling device 400 includes a second drive motor 410, a spiral transmission sleeve 420, and a drill bit 430.

[0063] Among them, the second drive motor 410 is arranged on the lifting end of the lifting device 300, the spiral transmission sleeve 420 is arranged on the output end of the second drive motor 410, and thread transmission blades are arranged on the outer wall of the spiral transmission sleeve 420 for transporting the soil debris generated during the drilling process, ensuring efficient chip removal ability and avoiding blockage. The drill bit 430 is detachably arranged at the bottom of the spiral transmission sleeve 420 and plugs the bottom opening of the spiral transmission sleeve 420.

[0064] It should be noted that a through groove 102 is opened at the top of the mounting frame 100, so that when the drilling device 400 rises following the lifting device 300, the second drive motor 410 can pass through the through groove 102, improving the effective stroke of the drilling device 400.

[0065] As a possible situation, the drill bit 430 is threadedly connected to the bottom of the spiral transmission sleeve 420. Then, when the drilling device 400 performs drilling operations, the drilling rotation direction of the drill bit 430 is opposite to the spiral direction, avoiding the drill bit 430 from detaching.

[0066] As another possible situation, the drill bit 430 is connected to the bottom of the spiral transmission sleeve 420 through a locking bolt, and relevant staff can replace the drill bit 430 by disassembling the locking bolt.

[0067] It should be noted that a through hole 401 is opened on the outer wall of the spiral transmission sleeve 420.

[0068] It can be understood that when relevant staff perform drilling operations, they start the second drive motor 410. Its output end drives the spiral transmission sleeve 420 and the drill bit 430 to rotate. Through the control of the lifting device 300, the drill bit 430 gradually approaches the drilling position. The drill bit 430 contacts the material surface and starts drilling. The spiral transmission blades on the spiral transmission sleeve 420 transport the debris generated during the drilling process upward.

[0069] In an embodiment of the present invention, as Figure 2 shown, the fixing device 200 includes a rotating arm 210, a pin 220, and a damping knob 230.

[0070] Among them, the bottom of the mounting frame 100 is provided with lugs 101. One end of the rotating arm 210 is rotatably arranged on the lugs 101 and locked by a damping knob 230. The pin 220 is movably arranged at the other end of the rotating arm 210.

[0071] It should be noted that the relevant staff rotate the rotating arm 210 selectively according to the situation around the soil to be detected, then lock it by the damping knob 230, and insert the pin 220 into the soil to improve the overall stability.

[0072] In an embodiment of the present invention, a controller 700 is further provided on the mounting frame 100. The lifting device 300, the drilling device 400, the elastic detection device 500 and the pushing device 600 are respectively connected to the controller 700.

[0073] It should be noted that the first driving motor 320 of the lifting device 300 is connected to the controller 700 through a signal line or a wireless communication module. The controller 700 controls the ascending and descending actions of the lifting device 300 according to the preset drilling depth and speed parameters to ensure that the drill bit 430 accurately reaches the target position.

[0074] The second driving motor 410 in the drilling device 400 is connected to the controller 700 through a signal line or a wireless communication module. The controller 700 controls the start, stop and rotation speed of the second driving motor 410 to ensure the stability and accuracy of the drilling process. At the same time, the controller 700 can also adjust the working state of the motor according to the real-time feedback to cope with different drilling conditions.

[0075] The elastic detection device 500 is connected to the controller 700 through a sensor interface, transmits the parameters detected by the probe 520 to the controller 700, and is displayed on the external display screen of the controller 700.

[0076] The electric telescopic rod in the pushing device 600 is connected to the controller 700 through a signal line or a wireless communication module. The controller 700 controls the thrust and speed of the pushing device 600 according to the drilling depth and material properties to ensure the smooth progress of the drilling process.

[0077] In summary, according to the soil quality stratification detection device of the embodiment of the present invention, through the conical design of the extrusion head 630 and the opening of the annular groove 631, when the elastic detection device 500 passes through multiple annular grooves 631 in sequence, it can not only produce multiple vibration effects, but also the detection end of the elastic detection device 500 can rebound multiple times in a short distance under the action of elasticity, so that the detection end of the elastic detection device 500 can be inserted into the soil in sections. Compared with inserting it into the soil at one time, the friction resistance of the detection end of the elastic detection device 500 is smaller. When the detection end of the elastic detection device 500 is reset, the bending, deformation, and even damage of the probe 520 can be effectively reduced.

[0078] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0079] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0080] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A device for detecting soil quality stratification, characterized in that, Comprising: A mounting frame (100), a fixing device (200), a lifting device (300), a drilling device (400), an elastic detection device (500), and a pushing device (600), wherein, The fixing device (200) is arranged on both sides of the bottom of the mounting frame (100); The lifting device (300) is arranged on the mounting frame (100); The drilling device (400) is arranged on the lifting end of the lifting device (300), and a through hole (401) is formed in the drilling device (400); The detection end of the elastic detection device (500) is elastically arranged in the drilling device (400) and blocks the through hole (401); The pushing device (600) is arranged in the drilling device (400), the pushing device (600) includes a conical extrusion head (630) that can move up and down, and a plurality of annular grooves (631) are formed in the extrusion head (630) from top to bottom; The extrusion head (630) abuts against the elastic detection device (500), so as to squeeze the end of the elastic detection device (500) through the lifting of the extrusion head (630), and push the detection end of the elastic detection device (500) horizontally out of the drilling device (400) along the through hole (401).

2. The soil quality stratification detection device according to claim 1, wherein The elastic detection device (500) includes a fixing column (510), a probe (520), an insulating head (530), and a spring (540), wherein, The fixing column (510) is arranged in the drilling device (400), and the through hole (401) penetrates through the fixing column (510); One end of the probe (520) is connected to the insulating head (530), and the other end is slidably arranged in the fixing column (510); The spring (540) is sleeved outside the fixing column (510), and one end of the spring (540) is connected to the insulating head (530), and the other end is connected to the inner wall of the drilling device (400); Wherein, the insulating head (530) abuts against the extrusion head (630).

3. The soil quality stratification detection device according to claim 1, characterized in that The pushing device (600) further includes a fixing plate (610) and an electric push rod (620), wherein, The fixing plate (610) is arranged in the drilling device (400); The electric push rod (620) is arranged on the fixing plate (610); The extrusion head (630) is connected to the telescopic end of the electric push rod (620).

4. The soil quality stratification detection device according to claim 1, characterized in that, A plurality of the elastic detection devices (500) are arranged at equal angles at the same horizontal height to form an elastic detection unit. A plurality of elastic detection units are arranged in sequence from top to bottom. The number of the plurality of extrusion heads (630) corresponds to the plurality of elastic detection units one by one, and the plurality of extrusion heads (630) are connected end to end in sequence.

5. The soil quality stratification detection device according to claim 4, characterized in that, A vertically downward extending portion (601) is arranged on the extrusion head (630) at the bottommost part. A stabilizing plate (602) is arranged inside the lower part of the drilling device (400), and the extending portion (601) penetrates through the stabilizing plate (602).

6. The soil quality stratification detection device according to claim 1, characterized in that, The lifting device (300) includes a bidirectional lead screw (310), a first drive motor (320), a lead screw slider (330), a transmission structure (340), and a mounting plate (350), wherein, The two bidirectional lead screws (310) are oppositely arranged on both sides of the mounting frame (100); The two lead screw sliders (330) are respectively arranged on the corresponding bidirectional lead screws (310); The transmission structure (340) connects the two bidirectional lead screws (310); The output end of the first drive motor (320) is connected to one of the bidirectional lead screws (310); Both ends of the mounting plate (350) are respectively connected to the two lead screw sliders (330).

7. The soil quality stratification detection device according to claim 1, characterized in that, The drilling device (400) includes a second drive motor (410), a spiral transmission sleeve (420), and a drill bit (430), wherein, The second drive motor (410) is arranged on the lifting end of the lifting device (300); The spiral transmission sleeve (420) is arranged on the output end of the second drive motor (410); The drill bit (430) is detachably arranged at the bottom of the spiral transmission sleeve (420) and plugs the bottom opening of the spiral transmission sleeve (420).

8. The soil quality stratification detection device according to claim 1, characterized in that, The fixing device (200) includes a rotating arm (210), a pin (220), and a damping knob (230), wherein, An ear plate (101) is arranged at the bottom of the mounting frame (100); One end of the rotating arm (210) is rotatably arranged on the ear plate (101) and locked by the damping knob (230); The pin (220) is movably arranged at the other end of the rotating arm (210).

9. The soil quality stratification detection device according to claim 1, characterized in that, A controller (700) is further arranged on the mounting frame (100), and the lifting device (300), the drilling device (400), the elastic detection device (500), and the pushing device (600) are respectively connected to the controller (700).

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