Soil sampling device

Abstract

The utility model relates to the technical field of soil sampling, and discloses a soil sampling device which comprises a sampling pipe, a drill bit is slidably arranged on the inner side of the sampling pipe, a push rod is arranged at the upper end of the drill bit, the top of the push rod penetrates through the sampling pipe and is slidably connected with the sampling pipe, and a connecting frame is arranged on the outer side of the sampling pipe. A scale rod is arranged on the connecting frame in a sliding manner; the spiral blade rotates to help discharge unwanted soil out of a drilled hole, so that the purity of an obtained soil sample is ensured, after the soil sample reaches a sampling soil layer, locking between the push rod and the sleeve is relieved, the drill bit is stressed to slide upwards, soil enters the sleeve conveniently, sampling operation at a specified position is completed, and the sampling efficiency is improved. Whether the support is in the horizontal state or not is judged through the gradienter, then whether the sampling pipe conducts sampling in the vertically-downward direction or not is judged, the sampling accuracy is guaranteed, and the sampling device has the advantages of being high in sampling accuracy, convenient to operate and wide in application range.

Description

Technical Field

[0001] The present application relates to the technical field of soil sampling, and in particular to a soil sampling device. Background Art

[0002] In soil and water conservation monitoring programs, soil sampling is a crucial step. Traditional soil sampling methods rely on manual operation, using simple tubes to directly insert soil. This method has the following shortcomings:

[0003] Because the surrounding soil cannot be effectively removed during the sampling process, the samples obtained often contain impurities. These impurities can mix into the target soil sample, affecting its purity and thus reducing the reliability of subsequent analytical results. Furthermore, traditional methods struggle to accurately obtain soil samples at different depths. Manual sampling is difficult to ensure consistent depth each time, resulting in inaccurate data. Utility Model Content

[0004] In order to solve the problem that the surrounding soil cannot be effectively removed during the sampling process, the obtained samples often contain impurities, which affects the reliability of subsequent analysis results, the present application provides a soil sampling device.

[0005] The soil sampling device provided in this application adopts the following technical solution:

[0006] A soil sampling device includes a sampling tube, a drill bit is slidably provided on the inner side of the sampling tube, and the drill bit can move up and down along the Z axis, a push rod is provided on the upper end of the drill bit, the top of the push rod passes through the sampling tube and is slidably connected to the sampling tube, a connecting frame is provided on the outer side of the sampling tube, and a scale rod is slidably provided on the connecting frame.

[0007] Preferably, the sampling tube includes a sleeve slidably mounted on the outside of the drill bit, a spiral blade is provided on the outside of the sleeve, a handle is provided on the upper end of the side of the sleeve, and the upper end of the push rod passes through the sleeve and is slidably connected to the sleeve.

[0008] Preferably, the sleeve and the push rod are positioned by using a pin-hole fit.

[0009] Preferably, the connecting frame includes a bracket rotatably mounted on the outside of the sleeve, and a level is provided on the bracket for determining whether the bracket is sampling along the Z-axis direction.

[0010] Preferably, both the scale rod and the push rod are provided with distance measuring scales.

[0011] In summary, this application has the following beneficial technical effects:

[0012] Through the coordinated use of the sampling tube, push rod, drill bit, connecting frame, scale rod and positioning pin, the sampling tube is rotated and pressed down, so that the push rod and the drill bit rotate synchronously, and the rotation of the spiral blade helps to discharge unnecessary soil from the borehole, thereby ensuring the purity of the obtained soil sample. After reaching the sampling soil layer, the positioning pin is removed, and the lock between the push rod and the sleeve is released, so that the drill bit can slide upward under force, making it convenient for the soil to enter the interior of the sleeve and complete the sampling operation at the designated position. The spirit level is used to determine whether the bracket is in a horizontal state, and then to determine whether the sampling tube is sampling in a vertical downward direction, thereby ensuring the accuracy of the sampling. Compared with the existing technology, the method has the effects of high sampling accuracy, convenient operation and wide application range. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of a first-perspective three-dimensional structure of an embodiment of the application;

[0014] Figure 2 is a schematic diagram of a second perspective three-dimensional structure of an embodiment of the application;

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure from a third perspective of the embodiment of the application.

[0016] Explanation of the accompanying symbols: 1. Sampling tube; 101. Sleeve; 102. Spiral blade; 103. Handle; 2. Push rod; 201. Connecting rod; 202. Handle; 3. Drill bit; 4. Connecting frame; 401. Bracket; 402. Level; 5. Scale rod; 6. Positioning pin; 7. Hanging ear; 8. Marking line. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1-3 This application is described in further detail.

[0018] The present application discloses a soil sampling device. Figure 1-3 A soil sampling device includes a sampling tube 1, which includes a sleeve 101 with a pre-set through-hole at the top. The outer wall of the lower end of the sleeve 101 adopts a variable diameter design to reduce the thickness of the sleeve 101 mouth, facilitating soil cutting during subsequent sampling. A spiral blade 102 is installed on the outside of the sleeve 101 to facilitate the discharge of unwanted soil from the drill hole during subsequent soil drilling and sampling, thereby ensuring the purity of the obtained soil sample. A handle 103 is installed on the upper end of the sleeve 101 to facilitate the operator's rotation to break the soil.

[0019] Reference Figure 2A push rod 2 is slidably mounted in the through hole. The push rod 2 includes a connecting rod 201 slidably mounted in the through hole. The connecting rod 201 and the sleeve 101 are positioned by using a pin hole. Specifically, a positioning hole is provided on both the connecting rod 201 and the sleeve 101. A positioning pin 6 is inserted into the positioning hole to prevent the connecting rod 201 and the sleeve 101 from moving relative to each other. Figure 1 The sleeve 101 is equipped with a hanging ear 7, which can be tied to the positioning pin 6 via a connecting rope to prevent the positioning pin 6 from being lost. The top of the connecting rod 201 is equipped with a handle 202, which is equipped with an indicator line. The outer side of the through hole is equipped with a marking line 8. When the connecting rod 201 is in a naturally drooping state and the indicator line and the marking line 8 are collinear, the through hole on the connecting rod 201 is coaxial with the through hole on the sleeve 101.

[0020] Reference Figure 3 The drill bit 3 is fixedly mounted at the lower end of the connecting rod 201 and slidably mounted within the sleeve 101. When the sleeve 101 and connecting rod 201 are locked relative to each other, the drill bit 3 can be used to break soil and prevent it from accidentally entering the interior of the sleeve 101. When the sleeve 101 and connecting rod 201 are unlocked, the drill bit 3 can slide along the inner wall of the sleeve 101, providing space for sampling. Furthermore, the drill bit 3 can be pushed back to push the sampled soil out of the sleeve 101, making operation convenient.

[0021] Reference Figure 3 The upper end of the sleeve 101 is mounted with a connecting frame 4. The connecting frame 4 includes a bracket 401 that rotatably fits around the outer side of the sleeve 101. A level 402 (e.g., a bubble level) is mounted on the bracket 401 to determine whether the bracket 401 is sampling along the Z-axis. A guide hole is defined at the distal end of the bracket 401, into which a graduated rod 5 is slidably mounted. Both the graduated rod 5 and the connecting rod 201 are equipped with distance scales to facilitate operator judgment of sampling depth.

[0022] The implementation principle of a soil sampling device in the embodiment of the present application is as follows:

[0023] Place the soil sampling device at the predetermined sampling point and adjust the device to a horizontal state using the level meter 402 on the connecting frame 4 to ensure that the sampling direction is accurate.

[0024] The staff member holds the handle 103 and rotates it, driving the sleeve 101 and the push rod 2 to rotate together and start breaking the soil. Due to the variable diameter design of the outer wall of the lower end of the sleeve 101, it helps to cut the soil.

[0025] As the drill bit penetrates deeper, the spiral blades 102 expel unwanted soil from the borehole, keeping the sampling hole clean and ensuring a pure soil sample. When the predetermined sampling depth is reached, the sleeve 101 stops rotating. The operator removes the locating pin 6, releasing the lock between the sleeve 101 and the push rod 2. Then, the sleeve 101 continues rotating. Due to the sliding design of the drill bit 3, the soil sample pushes the drill bit 3 upward, and the soil enters the sleeve 101.

[0026] After the sampling is completed, the sleeve 101 is removed from the borehole, and the push rod 2 is reset. The soil is pushed out of the sleeve 101 by the drill bit 3 and falls into the collection container. Then, the positioning pin 6 is reinserted to fix it and prepare for the next sampling.

[0027] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0028] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0029] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0030] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A soil sampling device, comprising a sampling tube (1), characterized in that: A drill bit (3) is slidably provided on the inner side of the sampling tube (1), and the drill bit (3) can move up and down along the Z axis. A push rod (2) is provided on the upper end of the drill bit (3), and the top of the push rod (2) passes through the sampling tube (1) and is slidably connected to the sampling tube (1). A connecting frame (4) is provided on the outer side of the sampling tube (1), and a scale rod (5) is slidably provided on the connecting frame (4).

2. A soil sampling device according to claim 1, characterized in that: The sampling tube (1) comprises a sleeve (101) slidably mounted on the outside of a drill bit (3), a spiral blade (102) is provided on the outside of the sleeve (101), a handle (103) is provided on the upper end of the side of the sleeve (101), and the upper end of the push rod (2) passes through the sleeve (101) and is slidably connected to the sleeve (101).

3. A soil sampling device according to claim 2, characterized in that: The sleeve (101) and the push rod (2) are positioned by pin-hole matching.

4. A soil sampling device according to claim 1, characterized in that: The connecting frame (4) comprises a bracket (401) rotatably sleeved on the outside of the sleeve (101), and a level (402) is provided on the bracket (401) for determining whether the bracket (401) is sampling along the Z-axis direction.

5. The soil sampling device according to claim 1, characterized in that: The scale rod (5) and the push rod (2) are both provided with distance measuring scales.

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