Soil auger suitable for sampling hardened hard soil
By setting a drill cap, anti-vibration ring, and buffer sleeve on the soil drill, combined with a trapezoidal and conical soil divider, the problem of difficult deep and layered sampling in hard soil was solved, achieving efficient, safe, and accurate soil sampling.
Patent Information
- Application Number
- CN202423300954.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing soil augers are difficult to use for deep sampling in hard soil, and their stratified sampling is inefficient, inaccurate, and unsafe.
A drill rod with a drill cap was designed, employing a layered sampling structure with an anti-vibration ring and a buffer sleeve, combined with a trapezoidal cone soil divider, to ensure efficient layered sampling in hard soil and reduce vibration and risk for the operator.
It improves the efficiency and safety of hard soil sampling, ensures the accuracy of stratified sampling, reduces operator hand vibration and risk, and maintains the integrity of soil samples.
Smart Images
Figure CN223742039U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to a kind of soil sampling tools, more particularly to a kind of soil drill suitable for hard soil sampling. BACKGROUND
[0002] In soil sampling work, soil drill is a kind of widely used tool, usually used in agricultural research, soil improvement, geological survey and environmental monitoring and other fields. The existing soil drill is usually composed of drill rod, handle and drill bit, and sample is collected from soil by manual operation. However, the design of the existing soil drill has many deficiencies, especially in the face of hard soil or needs layered sampling, which is particularly obvious.
[0003] The main structure of the existing soil drill relies on manual operation, especially through the pushing force of hand to press the drill rod into the soil. This design can only be used for soft soil, when facing hard soil sampling, it is difficult to drill deep into the soil layer by human power, therefore, it is difficult to apply to hard soil sampling.
[0004] From the structure of the existing soil drill, the top of the drill rod is usually provided with a fixed handle, and the handle is connected with the drill rod in T shape. When hard soil is encountered, due to the inability of human power to press the drill rod into the soil, the top end of the drill rod (i.e. the connection between the drill rod and the handle) or the handle is often knocked by hammer to increase the downward impact force. However, since the handle and the drill rod are usually integrally formed, when knocking with hammer, not only the equipment is easy to be damaged, but also the hand of the operator is subjected to strong impact, even the operator is injured, which seriously affects the comfort and safety of the operator.
[0005] In addition, in the fields of soil research, agricultural planting, geological exploration and environmental monitoring, sometimes it is necessary to understand the soil profile characteristics, so layered sampling is needed. Usually, layered sampling requires collecting soil samples at different depths (such as 0-10cm, 10-20cm, 20-30cm, etc.) in order to analyze the physical and chemical properties of soil. However, the layered sampling of the existing soil drill often relies on multiple sampling tools, or needs multiple repeated operations on a single tool, which is low in efficiency, and in the sampling process, the soil samples at different depths are easy to mix, affecting the accuracy of soil profile data. SUMMARY
[0006] In order to solve the above problems existing in the prior art, the purpose of the utility model is to provide a kind of soil drill suitable for hard soil sampling.
[0007] The technical scheme adopted by the utility model is as follows:
[0008] A soil drill suitable for sampling hard and compacted soil, comprising a drill bit, a drill rod and a handle, characterized in that: the upper end of the drill rod is provided with a drill cap, and the drill rod is provided with an inwardly recessed neck portion near the drill cap, the neck portion is provided with a handle, the handle is composed of two semicircular cylindrical pipe connectors, the handle is fixed on the neck portion of the drill rod through two annular buckles, and the handle is provided with a handle sleeve at both ends; the outside of the neck portion of the drill rod is provided with a shockproof ring.
[0009] The soil drill suitable for sampling hard and compacted soil, characterized in that: the neck portion of the drill rod is provided with a positioning pin insertion hole; a positioning pin is matched and arranged in the positioning pin insertion hole; the outside of the shockproof ring is a cylindrical outer wall, the inside is an inwardly protruding inner wall, and a pair of through holes matched with the positioning pin are arranged on the side wall of the shockproof ring.
[0010] The soil drill suitable for sampling hard and compacted soil, characterized in that: a buffer sleeve is wrapped on the positioning pin.
[0011] The soil drill suitable for sampling hard and compacted soil, characterized in that: an open groove is arranged on the side wall of the lower part of the drill rod, and a scale is arranged near the groove.
[0012] The soil drill suitable for sampling hard and compacted soil, characterized in that: the soil drill is further provided with a soil separator for separating and taking out the soil in the soil drill cavity; the soil separator is composed of a blade, a connecting rod and a handle, and the front end of the blade is provided with a circular arc blade.
[0013] The soil drill suitable for sampling hard and compacted soil has the advantages of simple structure, long service life, time and labor saving, wide application, and is suitable for ordinary soil sampling, hard and compacted soil sampling, layered sampling and other use scenarios. Compared with the prior art, the soil drill has the beneficial effects that: (1) the drill cap is arranged at the top end of the drill rod, which plays the role of a knocking block, has good impact resistance, prolongs the service life of the device, improves the operation efficiency in hard soil, and saves a lot of time and labor; (2) the handle is not in direct contact with the soil drill, and the shock ring, the buffer sleeve and the handle sleeve are designed, so that the shock feeling and vibration impact of the operator's hand are greatly reduced, the risk of accidentally hurting the operator's hand is reduced, and the comfort and safety of operation are improved; (3) the soil separator is designed in the shape of a trapezoidal cone, can be accurately inserted into the corresponding soil height position in the soil drill cavity according to the soil layered sampling requirement, ensures the accuracy of layered sampling, and the design of the three-sided blade is labor-saving, the trapezoidal cone design can effectively maintain the integrity of the soil sample, avoid mixing of soil samples at different depths, and improve the reliability of soil profile analysis. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 is a structural schematic view of the utility model;
[0015] Figure 2 is a structural schematic view of the drill rod;
[0016] Figure 3 is a structural schematic view of the anti-vibration ring cooperating with the drill rod;
[0017] Figure 4 is a structural schematic view of the positioning pin cooperating with the anti-vibration ring and the drill rod;
[0018] Figure 5 is a structural schematic view of the anti-vibration ring;
[0019] Figure 6 is a longitudinal sectional structural schematic view of the anti-vibration ring at a non-through hole;
[0020] Figure 7 is a longitudinal sectional structural schematic view of the anti-vibration ring at a through hole;
[0021] Figure 8 is a structural schematic view of the handle cooperating with the drill rod;
[0022] Figure 9 is a structural schematic view of the soil divider;
[0023] In the figure: 1-drill rod; 2-visible groove; 3-handle; 4-handle sleeve; 5-drill cap; 6-scale; 7-neck; 8-positioning pin; 9-anti-vibration ring; 91-outer wall; 92-inner wall; 93-through hole; 10-positioning pin insertion hole; 11-buffer sleeve; 12-buckle; M1-blade; M2-connecting rod; M3-blade handle; M4-blade edge. DETAILED DESCRIPTION
[0024] The utility model will be further explained in detail in combination with the drawings.
[0025] The utility model discloses a novel soil drill, which is improved based on the structure of the existing soil drill. In order to avoid redundancy, the existing design is referred to without specific description. The soil drill designed by the utility model is the same as the prior art in that it has a drill bit, a drill rod 1 and a handle 3. It is different from the prior art in that the upper end of the drill rod of the utility model is provided with a drill cap 5, which is made of impact-resistant material (such as high-carbon steel or composite material), ensuring that the force is evenly transmitted to the drill rod and the drill bit during hammering, facilitating force conduction and increasing the service life of the device. The design is suitable for sampling hard and compacted soil. In order to increase the safety and comfort of the operator, the handle 3 designed by the utility model does not directly contact the drill rod 1, but is designed as follows: the drill rod 1 is provided with an inwardly recessed neck 7 (see Figure 1 and 2), the neck is used for matching the handle 3, the handle 3 is formed by two semicylindrical pipe connectors (see Figure 8 ), and the handle is fixed on the neck of the drill rod by two annular buckles 12, and the handle is provided with a handle sleeve 4 at both ends (see Figure 8 ); the outside of the neck 7 of the drill rod is provided with an anti-vibration ring 9 (see Figure 3 ); in order to fix the handle and avoid rotating around the neck 7, the neck 7 of the drill rod is provided with a positioning pin insertion hole 10, and a positioning pin 8 is matched and arranged in the positioning pin insertion hole (see Figure 4 ); in order to match the shape of the neck, the outside of the anti-vibration ring 9 is designed as a cylindrical outer wall 91, the inside is designed as an inner wall 92 with a middle part protruding inward, and a pair of through holes 93 matched with the positioning pin are arranged on the side wall of the anti-vibration ring (see Figure 5 , Figure 6 and Figure 7 ); the positioning pin 8 is wrapped with a buffer sleeve 11 (see Figure 4 ).
[0026] In order to conveniently discharge or layer the taken soil from the soil drill cavity, the lower side wall of the drill rod 1 is provided with an open groove 2, and the side wall of the drill rod is provided with a scale 6 close to the groove 2.
[0027] After the soil is collected into the soil drill cavity, the special soil divider designed in the application is used to take out the soil sample. The soil divider designed in the application is composed of a blade M1, a connecting rod M2 and a blade handle M3, the blade is preferably provided with three blade edges M4, including straight blade edges on the left and right sides and a circular arc blade edge at the front end (see Figure 9 ); the width of the circular arc blade edge is slightly smaller than the width of the open groove, so as to facilitate the transverse cutting of the blade on the soil layer.
[0028] When the soil is sampled, first, the soil drill is placed at the sampling point, the drill cap is hammered by a hammer, and the drill bit is made to penetrate into the target soil layer; after drilling, the drill rod is rotated to rotate the soil sample into the soil drill cavity, so as to divide the soil in the soil drill from the soil in the sampling site; then the drill rod is taken out, the soil is cut by the soil divider vertically inserted into the open groove, and the soil in the cavity of the drill rod is taken out layer by layer according to the need.
[0029] The soil drill is simple in structure, durable, time-saving and labor-saving, and is widely applicable, and is suitable for ordinary soil sampling, hard soil sampling, layered sampling and other use scenarios. Compared with the prior art, the soil drill has the beneficial effects that: (1) the soil drill is provided with a drill cap at the top end of the drill rod, which plays the role of a knocking block, has good impact resistance, improves the service life of the device, improves the operation efficiency in hard soil, and saves a large amount of time and physical strength; (2) the handle is not in direct contact with the soil drill, and is provided with an anti-vibration ring, a buffer sleeve and a handle sleeve, so that the vibration and shock impact of the operator's hands are greatly reduced, the risk of accidentally injuring the operator's hands is reduced, and the comfort and safety of operation are improved; (3) the soil divider is designed in the shape of a trapezoidal cone, can be accurately inserted into the corresponding soil height position in the soil drill cavity according to the layered soil sampling requirement, ensures the accuracy of layered sampling, and the design of the three-sided blade is labor-saving, the trapezoidal cone design can effectively maintain the integrity of the soil sample, avoid mixing of soil samples at different depths, and improve the reliability of soil profile analysis.
Claims
1. A soil auger suitable for sampling of hard, compacted soils comprising a drill bit, a drill shaft (1) and a handle (3), characterised in that: The upper end of the drill rod is provided with a drill cap (5), the drill rod (1) is provided with a neck (7) near the drill cap, the neck is provided with a handle (3), the handle (3) is composed of two semicylindrical pipe connectors, the handle is fixed on the neck of the drill rod through two annular buckles (12), and handle sleeves (4) are arranged at both ends of the handle.
2. A soil auger suitable for sampling for hard, compacted soil according to claim 1, characterised in that: The neck (7) of the drill rod is provided with a positioning pin insertion hole (10), and a positioning pin (8) is arranged in the positioning pin insertion hole in a matched mode; the outer side of the anti-vibration ring (9) is a cylindrical outer wall (91), the inner side is an inner wall (92) with a middle part protruding inward, and a pair of through holes (93) matched with the positioning pin are arranged on the side wall of the anti-vibration ring.
3. A soil auger suitable for sampling for hard, compacted soil according to claim 2, characterised in that: The positioning pin (8) is wrapped with a buffer sleeve (11).
4. A soil auger suitable for sampling for hard, compacted soil according to claim 1, characterised in that: An open groove (2) is arranged on the lower part of the side wall of the drill rod (1), and a scale (6) is arranged near the groove (2).
5. A soil auger suitable for sampling for hard, compacted soil according to claim 1, characterised in that: The soil drill is further provided with a soil separator for separating and taking out the soil in the soil drill cavity, the soil separator is composed of a blade (M1), a connecting rod (M2) and a blade handle (M3), and the front end of the blade is provided with a circular-arc blade edge (M4).