Soil sampling mechanism for deep soil

Abstract

The utility model provides a soil sampling mechanism for deep soil, which comprises a screw rod, a drill bit is arranged at the inner bottom of the screw rod, a connecting block is fixedly arranged on the inner wall of the screw rod, the connecting block is connected with the drill bit, a soil sampling cylinder is connected to the inner wall of the screw rod in a sliding mode, a vertical groove 5 penetrating through the cylinder wall is formed in the cylinder wall of the soil sampling cylinder, and the vertical groove 5 is communicated with the vertical groove 5. And the connecting block is in sliding connection with the vertical groove. According to the soil sampling mechanism for the deep soil, the soil sampling cylinder is nested in the screw rod, during soil sampling, the handle is rotated, the screw rod and the drill bit drive the internally nested soil sampling cylinder to drill the soil downwards together through the matching of the connecting block and the vertical groove, and when the soil sampling mechanism stretches into the required soil depth, the hammering guide plate is hammered, so that the soil sampling cylinder is driven to drill the soil downwards; the soil sampling barrel is driven to extend downwards to be continuously inserted into soil, the soil enters the soil sampling barrel, the handle is rotated in the opposite direction after sampling is completed, the screw and the soil sampling barrel are lifted together, soil sampling is completed, in the process, through isolation of the screw, contact between deep soil and shallow soil is avoided, and the detection accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the field of soil sampling equipment, in particular to a soil sampling mechanism for deep soil. Background Art

[0002] Soil sampling is a common operation in the fields of geological survey, agricultural survey, etc. At present, soil drilling is usually used for sampling in surveys. The soil sampler is a device used to lift the original soil of the lower layer as a sample to understand its properties. In order to better understand the properties of the base layer, and in engineering geological exploration and investigation work, in order to obtain the physical and mechanical performance indicators of the foundation soil, sometimes it is even necessary to take original soil samples at a deeper depth.

[0003] For example, the publication number: CN219200907U, "Soil Surveying Device", includes a support and mounting part; four support and leveling parts are threadedly connected to the support and mounting part; a separation sampling part is fixedly connected to the support and leveling part; a striking guide part is threadedly connected to the separation sampling part, and an impact part is slidably connected to the striking guide part; the support and mounting part includes: an installation support plate and a positioning installation cylinder, a positioning installation cylinder is fixedly connected to the installation support plate, and a striking guide shaft is provided to assist in applying the hammering force to avoid various problems of manual construction. The above patent will cause the soil in the cylinder to vibrate during the hammering and removal of the insertion cylinder, causing the deep soil and the shallow soil to mix, resulting in deviations in the detection results.

[0004] This case was created to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The utility model aims to provide a soil taking mechanism for deep soil to solve the problems raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model is implemented through the following technical solutions: a soil taking mechanism for deep soil, including a screw, a drill bit is provided at the bottom of the screw, a connecting block is fixed on the inner wall of the screw, the connecting block is connected to the drill bit, a soil taking barrel is slidably connected to the inner wall of the screw, a vertical groove 5 penetrating the barrel wall is opened on the barrel wall of the soil taking barrel, and the connecting block is slidably connected to the vertical groove.

[0009] Preferably, a plurality of conical grooves are provided on the inner wall of the soil collecting barrel, and the end of the conical groove with a larger aperture faces the drill bit side.

[0010] Preferably, a fixing platform is sleeved on the outside of the screw rod, a fixing nail is fixedly connected to the bottom surface of the fixing platform, and a stabilizing disk is provided on the fixing nail.

[0011] Preferably, the bottom end of the screw rod is provided with screw teeth, and the outer wall of the upper end of the screw rod is fixed with a handle.

[0012] Preferably, a straight tube is connected to the upper end of the soil collecting tube, and the straight tube extends upward and passes through the screw rod.

[0013] Preferably, a striking guide plate is provided at the top end of the straight tube.

[0014] (III) Beneficial effects

[0015] After adopting the above technical scheme, the utility model has the following advantages compared with the prior art: the utility model is a soil sampling mechanism for deep soil, in which a soil sampling barrel is nested in a screw rod. When taking soil, the handle is turned, and the screw rod and the drill bit drive the internally nested soil sampling barrel to drill downward together through the cooperation of a connecting block and a vertical groove. When the soil is extended to the required soil depth, the guide plate is hit by a hammer to drive the soil sampling barrel to extend downward and continuously insert into the soil, and the soil enters the soil sampling barrel. After the sampling is completed, the handle is turned in the opposite direction to lift the screw rod and the soil sampling barrel together to complete the soil sampling. In this process, the direct contact between the deep soil and the shallow soil is avoided through the isolation of the screw rod, thereby improving the accuracy of the detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0018] Figure 3 for Figure 2 The enlarged schematic diagram at A in the middle;

[0019] In the figure: 1 screw, 2 drill bit, 3 connecting block, 4 soil barrel, 5 vertical slot, 6 conical slot, 7 fixing platform, 8 fixing nail, 9 stabilizing disk, 10 screw tooth, 11 handle, 12 straight barrel, 13 striking guide plate. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below through the drawings and embodiments.

[0021] The present invention provides a soil taking mechanism for deep soil, such as Figure 1-3 As shown, it includes a screw rod 1, a drill bit 2 is provided at the bottom of the screw rod 1, a connecting block 3 is fixed on the inner wall of the screw rod 1, the connecting block 3 is connected to the drill bit 2, a soil collecting barrel 4 is slidably connected to the inner wall of the screw rod 1, a vertical groove 5 penetrating the barrel wall is opened on the barrel wall of the soil collecting barrel 4, and the connecting block 3 is slidably connected to the vertical groove 5. When the screw rod 1 and the drill bit 2 drill downward into the ground, the connecting block 3 is located at the bottom of the vertical groove 5, and the connecting block 3 pushes the vertical groove 5, driving the soil collecting barrel 4 to move downward together.

[0022] Reference Figure 2-3 A plurality of conical grooves 6 are provided on the inner wall of the soil taking barrel 4, and the end with a larger aperture of the conical groove 6 faces the drill bit 2. When the screw 1 enters the required depth, the soil taking barrel 4 is inserted downward alone, and the first section with a larger aperture of the conical groove 6 faces the drill bit 2, which is conducive to the insertion of the soil taking barrel 4 and reduces the insertion resistance. It can also help to fix the soil in the soil taking barrel 4 from falling when it is lifted.

[0023] Reference Figure 1-2 A fixing platform 7 is sleeved on the outside of the screw rod 1, and a fixing nail 8 is fixedly connected to the bottom surface of the fixing platform 7. A stabilizing disk 9 is provided on the fixing nail 8. When using this mechanism, the fixing nail 8 needs to be inserted into the soil first, and the fixing platform 7 is used to fix and guide the middle screw rod 1. The stabilizing disk 9 on the fixing nail 8 can reduce the vibration during operation, thereby reducing the disturbance to the soil and increasing the quality of the soil.

[0024] Reference Figure 1-2 The bottom end of the screw rod 1 is provided with a screw tooth 10, and the outer wall of the upper end of the screw rod 1 is fixed with a handle 11. The screw rod 1 is driven to rotate by rotating the handle 11, and the screw tooth 10 can be used to drill into the soil more labor-savingly.

[0025] Reference Figure 2-3 A straight tube 12 is connected to the upper end of the soil-taking tube 4. The straight tube 12 extends upward and passes through the screw 1. A striking guide plate 13 is provided on the top of the straight tube 12. When the screw 1 and the drill bit 2 enter the required soil depth, the straight tube 12 and the soil-taking tube 4 are hammered downward by hammering the guide plate 13, so that the soil-taking tube 4 is inserted into the soil at the depth, and the soil enters the interior of the soil-taking tube 4, thereby completing the soil taking.

[0026] Working principle: first insert the fixing nail 8 into the soil. When taking soil, turn the handle 11. The screw 1 and the drill bit 2 drive the internally nested soil sampling tube 4 to drill downward through the cooperation of the connecting block 3 and the vertical groove 5. When the soil is inserted to the required soil depth, the guide plate 13 is hit by a hammer to drive the soil sampling tube 4 to extend downward and continue to be inserted into the soil. The soil enters the soil sampling tube 4. After the sampling is completed, turn the handle 11 in the opposite direction to lift the screw 1 and the soil sampling tube 4 together to complete the soil taking. In this process, the screw 1 is isolated to avoid direct contact between the deep soil and the shallow soil, thereby improving the accuracy of the detection result.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soil taking mechanism for deep soil, characterized in that: The invention comprises a screw rod (1), a drill bit (2) is provided at the bottom of the screw rod (1), a connecting block (3) is fixedly provided on the inner wall of the screw rod (1), the connecting block (3) is connected to the drill bit (2), a soil collecting barrel (4) is slidably connected to the inner wall of the screw rod (1), a vertical groove (5) penetrating the barrel wall is provided on the barrel wall of the soil collecting barrel (4), and the connecting block (3) is slidably connected to the vertical groove (5).

2. The soil taking mechanism for deep soil according to claim 1, characterized in that: A plurality of conical grooves (6) are provided on the inner wall of the soil collecting tube (4), and the end of the conical groove (6) with a larger aperture faces the drill bit (2).

3. The soil taking mechanism for deep soil according to claim 1, characterized in that: The screw rod (1) is externally sleeved with a fixing platform (7), the bottom surface of the fixing platform (7) is fixedly connected with a fixing nail (8), and a stabilizing plate (9) is provided on the fixing nail (8).

4. The soil taking mechanism for deep soil according to claim 1, characterized in that: The bottom end of the screw rod (1) is provided with screw teeth (10) on the outside, and the upper end outer wall of the screw rod (1) is fixedly provided with a handle (11).

5. The soil taking mechanism for deep soil according to claim 1, characterized in that: The upper end of the soil collecting tube (4) is connected to a straight tube (12), and the straight tube (12) extends upward and passes through the screw rod (1).

6. The soil taking mechanism for deep soil according to claim 5, characterized in that: A striking guide plate (13) is provided at the top end of the straight cylinder (12).

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