CN104330280A - Gear type soil sampler and sampling method thereof - Google Patents

Abstract

The invention discloses a gear type soil sampler and a sampling method thereof. The top of the sampling rod is provided with a sampling rod handle, the upper part of the sampling rod is provided with a raised annular groove, the lower part of the sampling rod is provided with a spiral blade, the bottom of the sampling rod is a cone, and the raised annular groove is provided with a matching sleeve , there are clips on both sides of the sleeve, the clips are provided with the No. The No. 1 bolt hole matched with the bolt hole is fixed on the clip by bolts, and the lifting gear handle is provided on the lifting gear. The present invention is simple in structure, easy to use, reduces the resistance of inserting and taking out the earth taker through the cooperation of the helical blade and the gear, saves time and effort, has strong practicability, reduces the damage of the earth taker, and improves its service life.

Description

A kind of gear type soil sampler and sampling method thereof

technical field

The invention relates to a soil sampler, in particular to a gear type soil sampler and a sampling method thereof.

Background technique

The collection of soil profile samples is the basis for soil system classification investigation, soil configuration analysis, soil fertility characteristics research, soil nutrient migration changes and soil ecological investigation. Accurate, appropriate and rapid acquisition of soil samples at different depths is directly related to The depth of research and the reliability of data in the fields of soil, geology, water conservancy, and environmental protection.

The traditional method generally adopts excavating a soil profile pit with a length of 1.0 m~2.0 m, a width of 1.0 m, and a depth of 1.0 m~2.0 m or using a soil auger to collect soil samples. The workload is heavy, the efficiency is low, and the degree of environmental damage to the sampling site is great.

The traditional soil extractor consists of a tubular drill bit connected to the drill pipe and a handle fixed to the upper end of the drill pipe. When collecting soil samples, hold the handle and rotate vigorously to lock the soil in the pipe of the drill bit, and then use a thin stick to squeeze the required Soil is scraped off, and the method for this collection soil is time-consuming and laborious, has a strong impact on the working efficiency of soil collection. Generally, when using this type of soil drill to collect relatively dense deep soil, the operator needs to hit the drill pipe with a hammer to generate a large downward force, so that the soil drill can enter the deep soil layer. The material of the drill pipe requires high robustness, and sampling is particularly time-consuming and labor-intensive. Similarly, as the sampling depth increases, the difficulty of taking out the sampler will also increase. Some samplers are even stuck in the soil and are difficult to remove manually.

In order to overcome the defective design of the traditional soil drill in the background technology, a gear-type soil sampler and its method are disclosed, including the soil drill, wherein the top of the soil drill sampling rod is provided with a sampling rod handle, and the upper part of the sampling rod is provided with a convex The lower part of the sampling rod is provided with a spiral blade, the bottom of the sampling rod is a cone, and the raised annular groove is provided with a matching sleeve, and there are clips on both sides of the sleeve. Lifting gears matching the protruding annular grooves are respectively provided, and are fixed on the clips by bolts, and lifting gear handles are arranged on the lifting gears. It can solve the problem that as the sampling depth increases, the resistance increases and the sampling rod is difficult to pull out.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art and provide a gear type soil sampler and a sampling method thereof.

In order to solve the problems of the technologies described above, the technical scheme that the present invention takes is:

Geared soil sampler includes sampling rod handle, sampling rod, raised annular groove, helical blade, cone, lift gear, No. 1 bolt hole, lift gear handle, sleeve, clip, No. 2 bolt hole ,bolt;

The top of the sampling rod is provided with a sampling rod handle, the upper part of the sampling rod is provided with a raised annular groove, the lower part of the sampling rod is provided with a spiral blade, and the bottom of the sampling rod is a cone.

The protruding annular groove is provided with matching sleeves, and clips are respectively provided on both sides of the sleeve. The clips are provided with the second bolt hole, and the two clips are respectively provided with Coordinated lifting gear, the lifting gear is provided with the No. 1 bolt hole matched with the No. 2 bolt hole, and is fixed on the clip by bolts, and the lifting gear is provided with a lifting gear handle.

The gear-type soil sampling method is: before sampling the soil to be tested, adjust the handle of the lifting gear to the vertical downward position, hold the handle of the sampling rod, press the cone on the sampling rod into the soil to be tested, and pass through the screw on the lower part of the sampling rod. The cutting action of the blade makes the sampling rod move downward in a spiral motion, and the spiral blade carries the soil sample. At the same time, the lifting gear moves downward with the raised annular groove, so that the lifting gear handle moves upward and stops when it reaches the limit; After reaching the expected depth, stop rotating the handle of the sampling rod, and press down on the handle of the lifting gear, the lifting gear will move relative to the raised annular groove, so that the sampling rod will rise for a certain distance, and then pull out the sampling rod vertically to obtain Vertical profile soil column at desired depth.

The invention is simple in structure, easy to use, reduces the resistance of inserting and taking out the soil fetcher through the cooperation of the gear and the helical blade, saves time and effort, has strong practicability, reduces the damage of the soil fetcher, and improves its service life.

Description of drawings

Figure 1 is a schematic diagram of the gear soil sampler

Fig. 2 is the A-A sectional view of Fig. 1

Fig. 3 is the structural representation of sleeve, clip, No. 2 bolt hole of the present invention

In the figure: sampling rod handle 1, sampling rod 2, raised annular groove 3, spiral blade 4, cone 5, lifting gear 6, No. 1 bolt hole 7, lifting gear handle 8, sleeve 9, clip 10. No. 2 bolt hole 11 and bolt 12.

Detailed ways

As shown in Figure 1-3, the gear soil sampler includes a sampling rod handle 1, a sampling rod 2, a raised annular groove 3, a spiral blade 4, a cone 5, a lifting gear 6, the first bolt hole 7, Lifting gear handle 8, sleeve 9, clip 10, second bolt hole 11, bolt 12;

The top of the sampling rod 2 is provided with a sampling rod handle 1, the upper part of the sampling rod 2 is provided with a raised annular groove 3, the lower part of the sampling rod 2 is provided with a spiral blade 4, and the bottom of the sampling rod 2 is a cone 5.

The protruding annular groove 3 is provided with a matching sleeve 9, the two sides of the sleeve 9 are respectively provided with clips 10, the clip 10 is provided with a second bolt hole 11, and the two clips are respectively provided with The lifting gear 6 that the raised annular groove matches, the lifting gear is provided with the first bolt hole 7 that matches the second bolt hole, and is fixed on the clip 10 by the bolt 12, the lifting gear 6 is provided with Lifting gear handle 8 is arranged.

The gear-type soil sampling method is: before sampling the soil to be tested, adjust the lifting gear handle 8 to the vertical downward position, hold the handle 1 of the sampling rod, press the cone 5 on the sampling rod 2 into the soil to be tested, and pass the sampling The cutting effect of the helical blade 4 at the lower part of the rod makes the sampling rod do a spiral movement downwards, and the helical blade carries the soil sample. At the same time, the lifting gear 6 moves downward with the raised annular groove 3, so that the lifting gear handle 8. Move upwards and stop when it reaches the limit; stop rotating the sampling rod handle 1 after reaching the expected depth, press down the lifting gear handle 8 firmly, the lifting gear 6 will move relative to the raised annular groove 3, and the sampling rod will rise for a certain distance , and then pull out the sampling rod vertically upwards to obtain a vertical profile soil column at the desired depth.

In order to facilitate the entry of the sampling rod into the soil, the bottom of the sampling rod is provided with a cone, and the lower part of the sampling rod is provided with a helical blade.

If the protruding annular groove on the sampling rod fits closely with the sleeve, there will be greater friction between the protruding annular groove on the sampling rod and the sleeve, which will cause greater resistance during sampling, not only It is time-consuming and labor-intensive, and in severe cases, the protruding annular groove or sleeve on the sampling rod will be damaged. Therefore, it is preferable to leave a certain gap between the protruding annular groove on the sampling rod and the sleeve. Simultaneously, in order to prevent the sleeve from slipping out of the raised annular groove, the radius of the lowermost cell of the raised annular groove should be slightly larger than the radius of the sleeve.

The two clips are respectively equipped with lifting gears that match the raised annular grooves, and are fixed on the clips by bolts. This structure realizes the raised ring grooves, lifting gears and gears without introducing other accessories. Fixed fit of clips.

When sampling, the deeper the depth, the harder it is to pull out the sampling rod. Using the leverage of the gears, the sampling rod can be pulled out more easily, that is, the more the gears, the easier it is to pull out. However, the more gears on the lifting gear handle, the larger the radius of the lifting gear handle, which makes the sampler heavy and inconvenient to carry. For optimization, the number of gears on the lifting gear is set to 8-12, and the raised annular groove on the sampling rod matches the lifting gear, and there are 8-12 raised annular grooves.

When the sampler reaches a certain depth in the soil to form a soil sample, the soil sample is attached to the helical blade at the lower part of the sampling rod. The area of the helical blade should be moderate. If the area of the helical blade is too large, it will be difficult to pull out during sampling. If the area of the helical blade is too small, the amount of soil samples taken will be small. Taking both into account, the radius of the helical blade is preferably 1.5 of the radius of the sampling rod. -3 times.

Preferably, the sampling rod is provided with a scale; when sampling, the sampler is screwed into the soil by observing the scale on the sampling rod, so as to accurately sample from a specific depth in the soil.

Claims (2)

1. A gear-type soil sampler, characterized in that it includes a sampling rod handle (1), a sampling rod (2), a raised annular groove (3), a spiral blade (4), a cone (5), Lifting gear (6), No. 1 bolt hole (7), lift gear handle (8), sleeve (9), clip (10), No. 2 bolt hole (11), bolt (12); sampling rod (2) The top of the sampling rod is provided with a handle (1), the upper part of the sampling rod is provided with a raised annular groove (3), the lower part of the sampling rod is provided with a spiral blade (4), the bottom of the sampling rod is a cone (5), and the convex A matching sleeve (9) is provided outside the raised annular groove (3), and clips (10) are respectively provided on both sides of the sleeve. The clip is provided with a second bolt hole (11). Lifting gears (6) that match the raised annular grooves are respectively provided, and the lifting gears are provided with the first bolt hole (7) that matches the second bolt hole, and are fixed on the On the clip, the lifting gear (6) is provided with a lifting gear handle (8). 2. A sampling method using a gear-type soil sampler as claimed in claim 1, characterized in that: before sampling the soil to be tested, the lifting gear handle (8) is adjusted to the vertical downward position, and the sampling rod is held The handle (1) presses the cone (5) on the sampling rod (2) into the soil to be tested, and through the cutting action of the helical blade (4) at the lower part of the sampling rod, the sampling rod makes a downward spiral movement, and the helical blade carries At the same time, the lifting gear (6) moves downward with the raised annular groove (3), making the lifting gear handle (8) move upwards, and stops when it reaches the limit; stop rotating after reaching the expected depth Sampling rod handle (1), press the lifting gear handle (8) firmly, the lifting gear (6) will move relative to the raised annular groove, so that the sampling rod will rise for a certain distance, and then pull out the sampling rod vertically Obtain a vertical profile soil column at the desired depth.