Forest land soil thickness measuring instrument

Abstract

The utility model discloses a forest land soil thickness measuring instrument which comprises a supporting frame, the supporting frame is sleeved with a sliding plate in a sliding mode, a detection rod is fixedly connected to the bottom of the sliding plate in an inserted mode, the bottom end of the detection rod is sleeved with a connecting cylinder in a threaded mode, a sliding block is connected between the circumferential inner walls of the connecting cylinder in a sliding mode, and a spring is fixedly connected to the bottom of the sliding block. A drill bit is clamped to the bottom end of the spring, the drill bit is slidably connected with the bottom end of the connecting cylinder in an inserted mode, a pressure sensor is fixedly connected between the circumferential inner walls of the connecting cylinder, the sliding block makes contact with the pressure sensor, two soil moisture sensors are embedded in the two sides of the connecting cylinder, and the circumferential outer wall of the connecting cylinder is sleeved with a protective cover. And the protective cover covers the outer side of the soil moisture sensor. According to the utility model, the soil density is detected through the pressure sensor, the soil thickness is measured according to the depth of the scale groove detecting rod pricking into the soil, and the soil humidity is detected through the soil moisture sensor.

Description

Technical Field

[0001] The utility model relates to the technical field of soil measurement, in particular to a forest soil thickness measuring instrument. Background Art

[0002] Forest soil thickness is one of the important factors affecting tree growth and forest productivity, and measuring soil thickness refers to measuring the moisture and soil density at a certain depth of the soil.

[0003] At present, the existing soil thickness measuring instrument has poor performance during use because it is inconvenient to simultaneously detect the moisture and density of the soil. Therefore, in order to advance the industry's technology, better realize the function of soil side thickness, and improve the competitiveness of core technologies, this application proposes a new implementation scheme that is different from the structure of the measuring instrument in the prior art. Utility Model Content

[0004] The utility model aims to solve the problem that the existing measuring instruments are inconvenient to detect the moisture and density of the soil at the same time, and proposes a forest soil thickness measuring instrument.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A forest soil thickness measuring instrument comprises a support frame, a sliding plate is slidably sleeved on the support frame, a detection rod is fixedly inserted at the bottom of the sliding plate, a connecting tube is threadedly sleeved at the bottom end of the detection rod, a sliding block is slidably connected between the circumferential inner walls of the connecting tube, a spring is fixedly connected at the bottom of the sliding block, a drill bit is clamped at the bottom end of the spring, the drill bit is slidably inserted into the bottom end of the connecting tube, a pressure sensor is fixedly connected between the circumferential inner walls of the connecting tube, the sliding block contacts the pressure sensor, and two soil moisture sensors are embedded on both sides of the connecting tube.

[0007] Furthermore, a protective cover is sleeved on the circumferential outer wall of the connecting tube, and the protective cover covers the outer side of the soil moisture sensor.

[0008] Furthermore, the outer wall of the detection rod is provided with a scale groove.

[0009] Furthermore, a threaded rod is rotatably inserted between the top and bottom of the support frame, and the threaded rod is threadedly connected to the sliding plate.

[0010] Furthermore, a display screen is fixedly connected to one side of the support frame.

[0011] Furthermore, bubble levels are fixedly connected to both sides of the support frame.

[0012] Furthermore, a plurality of pins are fixedly connected to the bottom of the support frame.

[0013] The beneficial effects of the utility model are:

[0014] 1. The drill bit moves upward by squeezing the soil, thereby contracting the spring, and then the sliding block moves upward under the elastic action of the spring, so that the sliding block and the squeezing pressure sensor are pressed to detect the soil density.

[0015] 2. By turning the threaded rod, the sliding plate moves downward along the support frame, so that the drill bit drills into the soil, and then the detection rod penetrates into the soil, so that the soil thickness is measured according to the scale groove, and the soil moisture is detected through the soil moisture sensor.

[0016] 3. Use the bubble level to balance the measuring instrument so as to accurately detect the soil thickness. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a forest soil thickness measuring instrument proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the structure for removing the protective cover on the probe rod of a forest soil thickness measuring instrument proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the bottom end of a probe rod of a forest soil thickness measuring instrument proposed by the utility model;

[0020] Figure 4 The utility model provides a schematic diagram of the operation and use structure of a forest soil thickness measuring instrument.

[0021] In the figure: 1. Support frame; 2. Sliding plate; 3. Detection rod; 4. Connecting tube; 5. Soil moisture sensor; 6. Sliding block; 7. Spring; 8. Drill bit; 9. Pressure sensor; 10. Protective cover; 11. Scale groove; 12. Threaded rod; 13. Display screen; 14. Bubble level; 15. Pin. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-Figure 4A forest soil thickness measuring instrument comprises a support frame 1, a sliding plate 2 is slidably sleeved on the support frame 1, a detection rod 3 is fixedly inserted at the bottom of the sliding plate 2, a connecting tube 4 is threadedly sleeved at the bottom end of the detection rod 3, a sliding block 6 is slidably connected between the circumferential inner walls of the connecting tube 4, a spring 7 is welded at the bottom of the sliding block 6, a drill bit 8 is clamped at the bottom end of the spring 7, the drill bit 8 is slidably inserted with the bottom end of the connecting tube 4, a pressure sensor 9 is fixed between the circumferential inner walls of the connecting tube 4 by bolts, the sliding block 6 contacts with the pressure sensor 9, the soil squeezes the drill bit 8 to move upward, thereby contracting the spring 7, and then the sliding block 6 moves upward under the elastic action of the spring 7, thereby causing the sliding block 6 to squeeze the pressure sensor 9, thereby detecting the soil density, and two soil moisture sensors 5 are embedded on both sides of the connecting tube 4, and the soil moisture sensor 5 is used to detect the soil humidity.

[0024] A protective cover 10 is sleeved on the circumferential outer wall of the connecting tube 4, and the protective cover 10 covers the outer side of the soil moisture sensor 5. The soil moisture sensor 5 is protected by the protective cover 10. A scale groove 11 is provided on the outer wall of the detection rod 3. A threaded rod 12 is rotatably inserted between the top and the bottom of the support frame 1. The threaded rod 12 is threadedly connected to the sliding plate 2. Twisting the threaded rod 12 drives the sliding plate 2 to move downward along the support frame 1, thereby driving the detection rod 3, the connecting tube 4 and the drill bit 8 to move downward, and then the drill bit 8 drills into the soil, so that the detection rod 3 penetrates into the soil, thereby measuring the soil thickness according to the scale groove 11. A display screen 13 is fixed to one side of the support frame 1 by bolts. The display screen 13 is electrically connected to the pressure sensor 9 and the soil moisture sensor 5. Bubble levels 14 are fixed to both sides of the support frame 1 by bolts. The measuring instrument is placed in a balanced manner by observing the bubble level 14. A plurality of pins 15 are welded to the bottom of the support frame 1 to ensure the stable placement of the measuring instrument.

[0025] The working principle of this embodiment is as follows: when in use, first, the pin 15 is connected to the ground to fix the measuring instrument on the ground, and the measuring instrument is placed in a balanced manner by observing the bubble level 14, then, the threaded rod 12 is turned to drive the sliding plate 2 to move downward along the support frame 1, thereby driving the detection rod 3, the connecting tube 4 and the drill bit 8 to move downward, and then the drill bit 8 is drilled into the soil, so that the detection rod 3 is inserted into the soil, and the soil thickness is measured according to the scale groove 11. At the same time, the soil squeezes the drill bit 8 to move upward, thereby causing the spring 7 to contract, and then the sliding block 6 is moved upward under the elastic action of the spring 7, thereby causing the sliding block 6 to squeeze the pressure sensor 9, and then the pressure value of the pressure sensor 9 is displayed on the display screen 13. The larger the pressure value, the higher the density of the soil. Then, the soil moisture sensor 5 is used to detect the soil moisture and display it on the display screen 13.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A forest soil thickness measuring instrument, comprising a support frame (1), characterized in that: The support frame (1) is provided with a sliding plate (2) in a sliding sleeve, a detection rod (3) is fixedly inserted at the bottom of the sliding plate (2), a connecting tube (4) is threadedly sleeved at the bottom end of the detection rod (3), a sliding block (6) is slidably connected between the circumferential inner walls of the connecting tube (4), a spring (7) is fixedly connected at the bottom of the sliding block (6), a drill bit (8) is clamped at the bottom end of the spring (7), the drill bit (8) is slidably inserted with the bottom end of the connecting tube (4), a pressure sensor (9) is fixedly connected between the circumferential inner walls of the connecting tube (4), the sliding block (6) is in contact with the pressure sensor (9), and two soil moisture sensors (5) are embedded on both sides of the connecting tube (4).

2. A forest soil thickness measuring instrument according to claim 1, characterized in that: A protective cover (10) is sleeved on the circumferential outer wall of the connecting cylinder (4), and the protective cover (10) covers the outer side of the soil moisture sensor (5).

3. The forest soil thickness measuring instrument according to claim 1, characterized in that: The outer wall of the detection rod (3) is provided with a scale groove (11).

4. The forest soil thickness measuring instrument according to claim 1, characterized in that: A threaded rod (12) is rotatably inserted between the top and bottom of the support frame (1), and the threaded rod (12) is threadably connected to the sliding plate (2).

5. The forest soil thickness measuring instrument according to claim 1, characterized in that: A display screen (13) is fixedly connected to one side of the support frame (1).

6. The forest soil thickness measuring instrument according to claim 1, characterized in that: Both sides of the support frame (1) are fixedly connected with a bubble level (14).

7. The forest soil thickness measuring instrument according to claim 1, characterized in that: A plurality of pins (15) are fixedly connected to the bottom of the support frame (1).

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