Environmental engineering soil detection sampler

Abstract

The invention relates to the technical field of soil treatment, in particular to an environmental engineering soil detection sampler, which comprises: a main body component including a body assembly, a sampling assembly arranged in the body assembly, a power assembly arranged outside the sampling assembly, an accommodating assembly arranged outside the power assembly, and a shielding assembly arranged outside the body assembly; the sampling assemblies are arranged at different positions outside the body assembly, and then the sampling assemblies are controlled to rotate, so that the device can perform one-time sampling on soil with different depths and can also perform single-time sampling on soil with different depths, and therefore, multiple times of sampling due to the fact that the soil with different depths is wanted can be avoided, and the sampling efficiency is improved. By arranging the shielding assembly, the situation that in the process that the device enters the soil, the sampling assembly enters the soil with different depths, and consequently the accuracy of subsequent soil detection is affected can be prevented.

Description

Technical Field

[0001] The invention relates to the technical field of soil treatment, in particular to an environmental engineering soil detection sampler. Background Art

[0002] Soil remediation refers to the activities of improving the physical, chemical and biological properties of soil through various methods and techniques to make it more suitable for plant growth, increase soil fertility, maintain soil health, and prevent soil degradation and pollution. Soil remediation measures include water conservancy soil improvement, engineering soil improvement, biological soil improvement, tillage soil improvement and chemical soil improvement. Before remediating and improving the soil, the soil in the area needs to be sampled and tested.

[0003] In the prior art, when sampling soil, the conventional practice is to first insert the sampler into the soil to a specified depth and then pull it out with force. At this time, the soil sample is retained in the sampler. The soil sample is stored in a sample bag and the pollutant composition and soil nutrient status in the sample are analyzed; However, this sampling method can only sample soil at the same depth at a time and cannot sample soil at different depths at one time. In addition, soil with low moisture content is relatively loose and cannot stick together without external force. This will cause the loose soil inside the sampler to fall off when the sampler is taken out from the ground. Summary of the Invention

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0005] In view of the above-mentioned problem or the problem in the prior art that soils at different depths cannot be extracted at one time, the present invention is proposed.

[0006] Therefore, the object of the present invention is to provide an environmental engineering soil detection sampler.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising: The main body component includes a body component, a sampling component provided in the body component, a power component provided outside the sampling component, a receiving component provided outside the power component, and a shielding component provided outside the body component; The extrusion component includes a pressing component arranged outside the shielding component, a telescopic component arranged inside the shielding component, an interference component arranged inside the main body component, and a conversion component that interferes with the shielding component.

[0008] As a preferred solution of the environmental engineering soil detection sampler of the present invention, the main body component includes a support frame, a round rod connected to the support frame, and a soil-breaking head provided at the end of the round rod.

[0009] As a preferred solution of the environmental engineering soil detection sampler of the present invention, wherein: a cavity is opened on the outer side of the round rod, and a limiting groove is opened at the position of the round rod corresponding to the cavity; The sampling assembly includes a rotating rod arranged in the limiting groove, a sampling half cylinder arranged at the end of the rotating rod, and an inclined surface opened outside the sampling half cylinder.

[0010] As a preferred solution of the environmental engineering soil detection sampler of the present invention, the power assembly includes a conversion rod arranged outside the rotating rod, an arc-shaped groove opened outside the conversion rod, and an L-shaped driving rod arranged in the arc-shaped groove.

[0011] As a preferred embodiment of the environmental engineering soil detection sampler of the present invention, the accommodating assembly includes a protective shell provided at the end of the round rod, a guide groove provided on the protective shell corresponding to the position of the L-shaped driving rod, and a slider provided in the guide groove; Wherein, the sliding block is slidably connected to the L-shaped driving rod.

[0012] As a preferred solution of the environmental engineering soil detection sampler of the present invention, wherein: the round rod is provided with a sliding groove in the cavity; The shielding assembly includes a resistance block arranged in the sliding groove, a shaft arranged at the end of the resistance block, and a shielding plate arranged at the end of the shaft.

[0013] As a preferred solution of the environmental engineering soil detection sampler of the present invention, wherein: a notch is opened outside the shielding plate; The pressing assembly includes a connecting rod arranged in the notch, a protrusion arranged outside the connecting rod, a pressing plate arranged at the end of the protrusion, and a coil spring sleeved outside the connecting rod.

[0014] As a preferred solution of the environmental engineering soil detection sampler of the present invention, wherein: a slide groove is provided at the end of the shielding plate; The telescopic assembly includes a contact plate arranged in the sliding groove, a sliding rod arranged at the end of the contact plate, and an elastic member sleeved on the outside of the sliding rod.

[0015] As a preferred solution of the environmental engineering soil detection sampler of the present invention, the interference component includes an interference rod arranged in the cavity and a movable groove opened outside the interference rod.

[0016] As a preferred solution of the environmental engineering soil detection sampler of the present invention, the conversion component includes a shift rod arranged in the movable groove, a support rod connected to the shift rod, and a coil spring 2 sleeved on the outside of the support rod.

[0017] The beneficial effects of the environmental engineering soil detection sampler of the present invention are as follows: the present invention arranges the sampling assembly at different positions outside the main body assembly, thereby controlling the rotation of the sampling assembly, so that the device can perform one-time sampling of soil at different depths, and can also perform single sampling of soil at different depths, thereby improving the sampling efficiency of the device; The shielding component can isolate the sampling component from the external soil, so that when the device enters the soil, soil at different depths cannot enter the sampling component, thereby improving the accuracy of subsequent soil testing; In addition, when the device is lifted, the sampling component will slide into the main body component, causing the resistance component to push the pressing component to rotate and press the sample soil in the sampling component, so that the sample soil is not easy to loosen and fall when the staff takes it out. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is an overall schematic diagram of an environmental engineering soil testing sampler.

[0020] Figure 2 This is a schematic diagram of the structure of the main body component of an environmental engineering soil detection sampler.

[0021] Figure 3 This is a schematic diagram of the internal structure of a round rod in an environmental engineering soil testing sampler.

[0022] Figure 4 This is a schematic diagram of the power component structure in an environmental engineering soil detection sampler.

[0023] Figure 5 A schematic diagram of the structure of a shielding component, a pressing component and a sampling component in an environmental engineering soil detection sampler.

[0024] Figure 6 A schematic diagram of the structure of a resistance component and a conversion component in an environmental engineering soil detection sampler.

[0025] In the figure: 100, main body component; 101, body assembly; 102, sampling assembly; 103, power assembly; 104, accommodation assembly; 105, shielding assembly; 101a, support frame; 101b, round rod; 101c, cavity; 101d, limiting groove; 101e, sliding groove; 101f, earth-breaking head; 102a, rotating rod; 102b, sampling semi-cylinder; 102c, inclined surface; 103a, conversion rod; 103b, arc-shaped groove; 103c, L-shaped driving rod; 104a, protective shell; 104b, guiding groove; 104c, slider; 105a, abutting block; 105b, shaft rod; 105c, shielding plate; 105d, notch; 105e, sliding groove; 200, extrusion component; 201, pressing assembly; 202, telescopic assembly; 203, abutting assembly; 204, conversion assembly; 201a, connecting rod; 201b, pressing plate; 201c, protrusion; 201d, first coil spring; 202a, abutting plate; 202b, sliding rod; 202c, elastic member; 203a, abutting rod; 203b, moving groove; 204a, lever; 204b, support rod; 204c, second coil spring. Detailed implementation manners

[0026] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following will make a detailed description of the specific implementation manners of the present invention with reference to the accompanying drawings of the specification.

[0027] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0028] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present invention. The "in one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or alternative embodiment that mutually excludes other embodiments.

[0029] Embodiment 1, refer to Figures 1 to 2, which is the first embodiment of the present invention, provides an environmental engineering soil detection sampler that can achieve the effect of one-time sampling of soil at different depths. It includes a main body component 100, including a main body component 101, a sampling component 102 arranged in the main body component 101, and a power component 103 arranged outside the sampling component 102. The sampling components 102 are arranged at different positions in the main body component 101. When the main body component 101 is inserted into a soil hole drilled in advance, since the sampling components 102 are arranged at different positions in the main body component 101, the sampling is controlled by the power component 103. The rotation of the component 102 enables the device to sample soil at different depths at one time, or to sample soil at different depths in a single time, thereby improving the sampling efficiency of the device. The accommodating component 104 provided outside the power component 103 serves the purpose of protecting and limiting the power component 103, and the shielding component 105 provided outside the main body component 101 can isolate the sampling component 102 from the external soil, so that when the device enters the soil, soil at different depths cannot enter the sampling component 102, thereby improving the accuracy of subsequent soil detection; The squeezing component 200 includes a pressing component 201 arranged outside the shielding component 105. When the device finishes sampling and extracts the soil, the pressing component 201 presses the sample tightly, so that the sample is not easy to loosen and fall when the staff takes it out. The telescopic component 202 is arranged in the shielding component 105, and the resistance component 203 is arranged in the main body component 101. The resistance component 203 pushes the pressing component 201 to rotate toward the sampling component 102 and presses the sample soil in the sampling component 102. The conversion component 204 conflicts with the shielding component 105. When the device extracts the soil, the sampling component 102 will be squeezed by the outside world and slide into the main body component 101 together with the shielding component 105. The conversion component 204 will convert the sliding force into a rotational force and transmit it to the resistance component 203, thereby achieving the purpose of driving the resistance component 203.

[0030] Example 2, reference Figures 1 to 5, which is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides the main component 100 of the environmental engineering soil detection sampler, solving the problem that soil at different depths enters the sampler during the process of inserting the device into the soil, affecting the accuracy of subsequent soil sample detection. It includes that the body component 101 includes a support frame 101a, a round rod 101b connected to the support frame 101a, and a soil-breaking head 101f provided at the end of the round rod 101b. The round rod 101b is arranged in the middle of the support frame 101a, and the soil-breaking head 101f is installed at the end of the round rod 101b. The support frame 101a can support the device at a specified position, and by driving the soil-breaking head 101f, it is convenient to insert the device into the pre-drilled soil.

[0031] Specifically, as Figure 2 , Figure 3 shown, a cavity 101c is opened on the outer side of the round rod 101b, and a plurality of cavities 101c are arrayed at different heights on the outer side of the round rod 101b. A limiting groove 101d is also opened at the position of the round rod 101b corresponding to the cavity 101c; a plurality of limiting grooves 101d are opened at the end of the round rod 101b, and the bottoms of the plurality of limiting grooves 101d are all communicated with the tops of the plurality of cavities 101c. The sampling component 102 includes a rotating rod 102a arranged in the limiting groove 101d and a sampling semi-cylinder 102b arranged at the end of the rotating rod 102a. A rotating rod 102a is movably connected in each of the plurality of limiting grooves 101d. The ends of the plurality of rotating rods 102a all penetrate through the limiting grooves 101d and extend into the cavity 101c, and are fixedly connected with the sampling semi-cylinder 102b. When it is necessary to sample the soil at a specified depth, by driving the rotating rod 102a, the sampling semi-cylinder 102b will rotate around the rotating rod 102a, and at the same time scrape the soil into the sampling semi-cylinder 102b, thus achieving the purpose of sampling the soil at different depths at one time. An inclined surface 102c is opened on the outer side of the sampling semi-cylinder 102b, and one side of the end of the sampling semi-cylinder 102b that is closed is arranged in a shape of an inclined surface 102c. In this way, after the soil sampling is completed, when the device is withdrawn, the external soil will contact the inclined surface 102c, and the sampling semi-cylinder 102b will shrink into the cavity 101c and no longer be restricted by the external soil. At the same time, the device can be easily withdrawn.

[0032] Furthermore, as Figure 3 , Figure 4In it, the power assembly 103 includes a conversion rod 103a arranged outside the rotating rod 102a, an arc-shaped groove 103b opened outside the conversion rod 103a, and an L-shaped driving rod 103c arranged in the arc-shaped groove 103b. The top end of the rotating rod 102a is fixedly connected to the conversion rod 103a. An arc-shaped groove 103b is opened outside the conversion rod 103a, and the radian of the arc-shaped groove 103b accounts for one-half of the conversion rod 103a. An L-shaped driving rod 103c is movably connected in the arc-shaped groove 103b. By pressing the L-shaped driving rod 103c to move vertically downward in the arc-shaped groove 103b, the end of the L-shaped driving rod 103c will contact the inner wall of the arc-shaped groove 103b, causing the conversion rod 103a to rotate along the trajectory of the arc-shaped groove 103b. Since the radian of the arc-shaped groove 103b accounts for one-half of the outside of the conversion rod 103a, when the end of the L-shaped driving rod 103c reaches the bottom end of the arc-shaped groove 103b, the conversion rod 103a only rotates 180°. At this time, the rotating rod 102a and the sampling half cylinder 102b rotate 180°. The sampling half cylinder 102b can sample the soil at the corresponding position. After the rotation, in cooperation with the shielding assembly 105, the soil will stay in the sampling half cylinder 102b; Further, as Figure 3 , Figure 4 In it, the accommodating assembly 104 includes a protective shell 104a arranged at the end of the round rod 101b, a guiding groove 104b opened on the protective shell 104a corresponding to the position of the L-shaped driving rod 103c, and a slider 104c arranged in the guiding groove 104b; among them, the slider 104c is slidably connected to the L-shaped driving rod 103c. The protective shell 104a is fixedly connected to the end of the round rod 101b to protect the power assembly 103. At the same time, a guiding groove 104b is opened at the position of the protective shell 104a corresponding to the L-shaped driving rod 103c, and a slider 104c is slidably connected inside the guiding groove 104b. When the staff presses the L-shaped driving rod 103c, the L-shaped driving rod 103c will be perpendicular downward due to the restriction of the slider 104c. In addition, the above-mentioned sampling half cylinder 102b will retract into the cavity 101c when the device is lifted out of the soil. The opening of the guiding groove 104b enables the power assembly 103 to move along with the movement of the sampling half cylinder 102b.

[0033] Further, as Figure 5Among them, the round rod 101b is provided with a sliding groove 101e in the cavity 101c; the shielding component 105 includes a contact block 105a arranged in the sliding groove 101e, a shaft rod 105b arranged at the end of the contact block 105a, and a shielding plate 105c arranged at the end of the shaft rod 105b. The round rod 101b is provided with a sliding groove 101e in the cavity 101c. The contact block 105a is slidably connected in the sliding groove 101e. The end of the contact block 105a is fixedly connected to the shaft rod 105b, and the end of the shaft rod 105b is fixedly connected to the shielding plate 105c. Through the shielding plate 105c, the outside soil is isolated from entering the sampling half cylinder 102b, thereby improving the accuracy of subsequent soil detection.

[0034] The remaining structures are the same as those in Embodiment 1.

[0035] Embodiment 3, referring to Figures 1 to 6 , is the third embodiment of the present invention. Different from the previous embodiment, this embodiment provides an extrusion component 200 for the environmental engineering soil detection sampler, which solves the problem that the sample soil is prone to looseness. It includes that a notch 105d is opened outside the shielding plate 105c; the pressing component 201 includes a connecting rod 201a arranged in the notch 105d, a protrusion 201c arranged outside the connecting rod 201a, a pressing plate 201b arranged at the end of the protrusion 201c, and a first coil spring 201d sleeved outside the connecting rod 201a. A notch 105d is opened outside the shielding plate 105c in the direction close to the cavity 101c. The connecting rod 201a is rotatably connected in the notch 105d. The protrusion 201c is fixedly connected outside the connecting rod 201a. The end of the protrusion 201c is fixedly connected to the pressing plate 201b. The pressing plate 201b can rotate through the connecting rod 201a with respect to the shielding plate 105c. The setting of the protrusion 201c enables the pressing plate 201b to only rotate in the direction outside the cavity 101c. During the process of the round rod 101b entering the soil, the pressing plate 201b will not rotate into the cavity 101c. Then, before the sampling half cylinder 102b rotates, the outside soil will not be able to enter the sampling half cylinder 102b, thereby affecting the accuracy of subsequent sample soil detection. In addition, during the process of lifting and extracting the soil after sampling, the sample in the sampling half cylinder 102b is pressed tightly by the pressing plate 201b, so that when the staff takes out the sample, it is not easy to loosen and fall. The end of the connecting rod 201a is sleeved with a first coil spring 201d. After the device extracts the soil, the first coil spring 201d will drive the pressing plate 201b to reset.

[0036] Furthermore, as Figure 5Among them, a chute 105e is provided at the end of the baffle 105c; the telescopic assembly 202 includes a contact plate 202a arranged in the chute 105e, a sliding rod 202b arranged at the end of the contact plate 202a, and an elastic member 202c sleeved outside the sliding rod 202b. A chute 105e is provided at the top of the baffle 105c. The contact plate 202a is slidably connected in the chute 105e. One end of the contact plate 202a located in the chute 105e is fixedly connected to the sliding rod 202b. The sliding rod 202b is slidably connected with the chute 105e, and an elastic member 202c is sleeved between the chute 105e and the contact plate 202a on the outer side of the rod body of the sliding rod 202b. During the process of the device lifting soil, the sampling half cylinder 102b will slide into the cavity 101c, and at the same time, the pressing plate 201b will press the sample soil in the sampling half cylinder 102b. During this process, to prevent soil from entering the sampling half cylinder 102b when the device is inserted into the soil hole, the pressing plate 201b is close to the notch 105d of the baffle 105c. However, in this way, the pressing plate 201b and the baffle 105c will restrict each other and cannot rotate. At this time, a certain distance is set between the baffle 105c and the pressing plate 201b. At the same time, a chute 105e is provided at the position between the end spacings of the baffle 105c and the pressing plate 201b, and the contact plate 202a is slidably connected in the chute 105e. The contact plate 202a can not only prevent soil from entering the sampling half cylinder 102b, but also slide into the chute 105e when the pressing plate 201b rotates and presses into the sampling half cylinder 102b. During the sliding process of the contact plate 202a, it will also squeeze the elastic member 202c, so that the elastic member 202c accumulates a certain amount of kinetic energy. In this way, after the pressing is completed, the elastic member 202c will push the contact plate 202a and the sliding rod 202b to reset.

[0037] Further, as Figure 5 、 Figure 6In the embodiment, the resistance assembly 203 includes a resistance rod 203a provided in the cavity 101c, and a movable groove 203b provided outside the resistance rod 203a. The conversion assembly 204 includes a lever 204a provided in the movable groove 203b, a support rod 204b connected to the lever 204a, and a coil spring 204c sleeved on the outside of the support rod 204b. The resistance rod 203a is slidably connected in the cavity 101c, and a movable groove 203b is provided outside the resistance rod 203a. A lever 204a is movably connected in the groove 203b, and a support rod 204b is fixedly connected to the inside of the lever 204a. A coil spring 204c is sleeved on the end of the support rod 204b. After the sampling is completed, when the staff lifts the device to extract the soil, the external soil will resist the inclined surface 102c of the sampling half cylinder 102b, and the sampling half cylinder 102b will drive the resistance block 105a, the shaft 105b and the shielding plate 105c to slide into the cavity 101c. , and the resistance block 105a will resist the lever 204a, and the lever 204a will drive the support rod 204b to rotate as the center of the circle. At this time, the coil spring 204c will be wound, and the other end of the lever 204a will resist the inner wall of the movable groove 203b, causing the resistance rod 203a to slide out of the cavity 101c. At the same time, its end will resist the pressing plate 201b, causing the pressing plate 201b to rotate toward the sampling half cylinder 102b and sample the sample in the sampling half cylinder 102b. The soil is pressed so that the sample soil is not easy to loosen and fall when the staff takes it out. After the device extracts the soil, the coil spring 2 will drive the support rod 204b and the shift rod 204a to rotate, and the top end of the shift rod 204b will contact the movable groove 203b to drive the resistance rod 203a to reset, and the bottom end of the shift rod 204b will move the resistance block 105a and the sampling half cylinder 102b to reset. At this time, the sampling half cylinder 102b moves to the outside of the cavity 101c, making it convenient for the staff to take out the sample soil.

[0038] The rest of the structure is the same as that of Example 2.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An environmental engineering soil detection sampler, characterized in that: include, The main body component (100) comprises a body component (101), a sampling component (102) disposed within the body component (101), a power component (103) disposed outside the sampling component (102), a receiving component (104) disposed outside the power component (103), and a shielding component (105) disposed outside the body component (101); The extrusion component (200) comprises a pressing component (201) provided outside the shielding component (105), a telescopic component (202) provided inside the shielding component (105), a conflicting component (203) provided inside the main body component (101), and a conversion component (204) conflicting with the shielding component (105).

2. The environmental engineering soil detection sampler according to claim 1, characterized in that: The body component (101) comprises a support frame (101a), a round rod (101b) connected to the support frame (101a), and a soil-breaking head (101f) provided at the end of the round rod (101b).

3. The environmental engineering soil detection sampler according to claim 2, wherein: A cavity (101c) is provided on the outside of the round rod (101b), and a limiting groove (101d) is also provided on the round rod (101b) at a position corresponding to the cavity (101c); The sampling assembly (102) comprises a rotating rod (102a) arranged in the limiting groove (101d), a sampling half-cylinder (102b) arranged at the end of the rotating rod (102a), and an inclined surface (102c) opened outside the sampling half-cylinder (102b).

4. The environmental engineering soil detection sampler according to claim 3, characterized in that: The power assembly (103) comprises a conversion rod (103a) arranged outside the rotating rod (102a), an arc-shaped groove (103b) opened outside the conversion rod (103a), and an L-shaped driving rod (103c) arranged in the arc-shaped groove (103b).

5. The environmental engineering soil detection sampler according to claim 4, wherein: The accommodating assembly (104) comprises a protective shell (104a) provided at the end of the round rod (101b), a guide groove (104b) provided on the protective shell (104a) at a position corresponding to the L-shaped driving rod (103c), and a sliding block (104c) provided in the guide groove (104b); The sliding block (104c) is slidably connected to the L-shaped driving rod (103c).

6. The environmental engineering soil detection sampler according to claim 5, wherein: The round rod (101b) is located in the cavity (101c) and is provided with a sliding groove (101e); The shielding assembly (105) comprises a resistance block (105a) provided in the sliding groove (101e), a shaft (105b) provided at the end of the resistance block (105a), and a shielding plate (105c) provided at the end of the shaft (105b).

7. The environmental engineering soil detection sampler according to claim 6, characterized in that: A notch (105d) is formed on the outside of the shielding plate (105c); The pressing assembly (201) comprises a connecting rod (201a) disposed in the notch (105d), a protrusion (201c) disposed outside the connecting rod (201a), a pressing plate (201b) disposed at the end of the protrusion (201c), and a coil spring (201d) sleeved outside the connecting rod (201a).

8. The environmental engineering soil detection sampler according to claim 7, characterized in that: A sliding groove (105e) is provided at the end of the shielding plate (105c); The telescopic assembly (202) includes a contact plate (202a) disposed in the chute (105e), a slide rod (202b) disposed at an end of the contact plate (202a), and an elastic member (202c) sleeved outside the slide rod (202b).

9. The environmental engineering soil detection sampler according to claim 8, characterized in that: The contact assembly (203) includes a contact rod (203a) disposed in the cavity (101c), and an activity groove (203b) formed outside the contact rod (203a).

10. The environmental engineering soil detection sampler according to claim 9, characterized in that: The conversion assembly (204) includes a shift lever (204a) disposed in the activity groove (203b), a support rod (204b) connected to the shift lever (204a), and a second torsion spring (204c) sleeved outside the support rod (204b).

Images