CN205620158U - Can be used to test geotome of deep soil body unit weight - Google Patents

Abstract

The utility model discloses a soil fetcher which can be used for testing the bulk density of deep soil, which comprises a base, an auger drill rod, a pull rod with a gear, and a sampling tube; wherein, the base is fixedly connected with the ground, and a pair of Pulling rod with gear, the auger rod is fixed between a pair of pulling rods with gears to form a gear system; the thread on the auger rod meshes with the gear on the pulling rod with gear to form a lever system; the sampling tube is installed on the auger The bottom end of the rod; the up and down movement of the auger rod is realized by pressing down or lifting the gear to lift the rod. Using the principle of spiral and leverage, the earth taker in the utility model can be more labor-saving and quickly enter and pull out the soil, reducing the Soil disturbance improves the accuracy of soil scientific research, while reducing the labor intensity of the sampling process and improving work efficiency.

Description

A kind of earth taking device that can be used to test the bulk density of deep soil

technical field

The utility model relates to the technical field of soil fetching, in particular to a soil fetching device which can be used for testing the bulk density of deep soil.

Background technique

Soil is one of the high-yield, high-quality, and efficient resources for agricultural production. The study of deep soil properties is an important aspect of agricultural production. However, the deep soil sample acquisition technology and equipment are insufficient, which seriously hinders the study of deep soil. At present, although there are various electric soil-taking devices in the existing market, they have not been promoted because of limitations in field power or complicated and expensive reasons. Although the commonly used manual soil fetching tools are relatively portable, it is difficult to drill down below 40cm in the soil compacted land, and because the friction between the soil and the soil drill is relatively large, it is a very laborious thing to pull out the soil drill. Soil sampling work efficiency is seriously reduced, consuming a lot of manpower and material resources in vain.

Soil bulk density refers to the weight per unit volume of soil in the case of undamaged natural structure, and its size is closely related to soil texture, structure, organic matter content, soil compactness, and farming practices; under the current climate change scenario, Soil bulk density is an important indicator for estimating soil carbon storage. The determination of soil bulk density usually adopts the ring knife method. The conventional method is to hammer the ring knife into the soil with an energy-absorbing hammer, and then take out the ring knife filled with soil, and the commonly used ring knife is mostly used for surface sampling, and deep sampling needs to be used. The method of digging a pit, such as 100cm deep, generally needs to excavate a pit of more than 100cm in length, width and depth, which has a large workload and low efficiency.

In the existing sampling technology, due to the long-term, large-scale and blind use of traditional samplers, a lot of money and labor are consumed, and a large amount of scientific research work is wasted on the collection of soil samples in the field. Therefore, there is an urgent need to use new equipment and methods to sample deep soil in production and scientific research, to make up for the shortcomings of traditional soil fetchers, and to provide convenience for deep soil research.

Utility model content

In view of the above-mentioned defects or deficiencies, the purpose of this utility model is to provide a soil fetcher that can be used for testing the bulk density of deep soil, so as to meet the measurement requirements of deep soil bulk density.

The technical scheme of the utility model is:

A soil fetcher that can be used to test the bulk density of deep soil, including a base, an auger rod, a geared pull rod, and a sampling tube; wherein, the base is fixedly connected to the ground, and a pair of geared pull rods are installed on the top of the base. The auger rod is fixed between a pair of pull rods with gears to form a gear system; the thread on the auger rod meshes with the gear on the pull rod with gears to form a lever system; the sampling tube is installed at the bottom of the auger rod.

The base includes a fixed plate arranged at the bottom, the fixed plate is placed at the position to be sampled, and pushed into the soil at the position to be sampled by ground riveting, a support frame is installed on the fixed plate, and a support at the top of the base is arranged on the support frame , The pull rod with gear is installed on the top bracket.

A pedal for stepping on and fixing the foot is arranged on the fixed plate.

The top of the base is connected with a pair of pull-up rods with gears through rivets.

The top end of the auger rod is provided with a striking head for assisting the pushing of the sampling tube.

The auger rod is provided with scale markings for accurate sampling.

The sampling tube includes a first half-cylinder and a peelable second half-cylinder; wherein, the first half-cylinder and the second half-cylinder are fastened by locking keys, and the first half-cylinder The top of the top is connected with the auger rod, and the lower parts of the first half cylinder and the second half cylinder are provided with cutting edges.

The inside of the first half cylinder and the second half cylinder is provided with a plurality of ring knife slots for placing the soil ring knife.

The locking key includes a wedge-shaped protrusion arranged on the side wall of the second half cylinder, and a groove arranged on the first half cylinder to match the wedge-shaped protrusion, and the wedge-shaped protrusion and the groove are engaged with each other .

Compared with the prior art, the beneficial effects of the utility model are:

The utility model provides a soil extractor which can be used for testing the bulk density of deep soil. The auger rod is connected with a pair of gear pull rods by setting the auger rod, and the up and down movement of the auger rod is realized by pressing down or lifting the gear pull rod. The principle of screw and lever can make the soil fetcher in the utility model more labor-saving, quickly enter the soil and pull out the soil, reduce soil disturbance, improve the accuracy of soil scientific research, and reduce the labor intensity of the sampling process at the same time, and improve the work efficiency. Efficiency: Compared with the traditional soil fetcher, this utility model utilizes the principle of spiral and lever, which can not only meet the demand of deep soil sampling, but also meet the demand of soil fetching for the measurement of deep soil bulk density. It is easy to assemble, easy to use, and efficient to work. It is of great significance to study soil resources.

Further, the sampling tube in the utility model is fixed by fitting and locking keying assembly, and the sampling tube is provided with a ring knife slot which can meet the requirements of three levels of soil bulk density measurement. After the sampling is finished, open the sampling tube, and the corresponding The soil layer ring knife is disassembled to measure the soil bulk density, which is efficient and quick, and has little damage to the surrounding environment of the soil.

Description of drawings

Fig. 1 is the utility model can be used for the earth taker structure schematic diagram of testing deep soil bulk density;

Fig. 2 is a structural schematic diagram of the sampling pipe in the earth taker which can be used to test the bulk density of deep soil according to the present invention.

In the figure, 1 is the impact head, 2 is the base, 3 is the auger rod, 4 is the pull rod with gear, 5 is the sampling tube, 6 is the rivet, 7 is the soil ring knife, 21 is the top bracket, 22 is the support frame , 23 is a fixed plate, 24 is a pedal, 25 is a ground riveting, 31 is a thread, 41 is a gear, 42 is a pull handle, 51 is a wedge-shaped protrusion, 52 is a groove, 53 is a cutting edge, and 54 is the second Half cylinder, 55 is the first half cylinder, and 56 is the locking key, and 57 is the ring cutter draw-in groove, and 71 is the first ring cutter, and 72 is the second ring cutter, and 73 is the third ring cutter.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

As shown in Figure 1, the utility model provides a kind of earth taker that can be used for testing deep soil bulk density, comprises base 2, auger rod 3, belt pull-up rod 4, and sampling tube 5; Wherein, base 2 Fixedly connected with the ground, a pair of geared pull rods 4 is installed on the top of the base 2, and the auger rod 3 is fixed between the pair of geared pull rods 4 to form a gear system; the geared pull rod 4 includes a gear 41 and is arranged on The pull handle 42 on the gear 41; the thread 31 on the auger rod 3 meshes with the gear 41 on the geared pull rod 4 to form a lever system; the gear pull rod 4 includes a pull handle 42, and the sampling tube 5 is installed on the auger The bottom end of rod 3.

Specifically, the base 2 includes a fixed plate 23 arranged at the bottom. The fixed plate 23 is placed at the position to be sampled and pushed into the soil at the position to be sampled through the ground rivet 25. The pedal 24, and the top of the base 2 is connected with a pair of geared pull rods 4 through rivets 6. A support frame 22 is installed on the fixed plate 23 , the support frame 22 is provided with a base top support 21 , and the geared lifting rod 4 is installed on the top support 21 .

When sampling, the fixed plate 23 is first placed on the required sampling position, and the ground rivet 25 is pushed into the soil to play a fixed role and enhance the stability of the earth taker. During the sampling process, the foot pedal 24 is used to assist in fixing the sampling equipment. .

Preferably, in order to push the sampling pipe 5 on the hard soil, the top of the auger rod 3 described in the utility model is provided with a striking head 1 that assists the sampling pipe 5 to push, and can be pulled up and down on the relatively soft land. The gear lifting handle 42 can drive the auger rod 3 to move up and down, and then realize the process of digging and unearthing the sampling tube 5, and can push the sampling tube 5 to a corresponding depth by knocking the percussion head 1 on hard soil.

Preferably, the auger rod 3 is provided with scale markings, which can realize accurate sampling at different depths.

As shown in Figure 2, the length of the main body of the sampling tube 5 in the utility model is 20cm, and specifically includes a first half cylinder 55 and a second half cylinder 54 that can be stripped; wherein, the first half cylinder 55 and the The second half cylinder 54 is locked together by the locking key 56, the top of the first half cylinder 55 is connected with the auger rod 3, and the bottoms of the first half cylinder 55 and the second half cylinder 54 are provided with blades. Port 53 for easy cutting into the ground.

The inside of the first half cylinder 55 and the second half cylinder 54 are provided with several ring cutter slots 57 for placing the soil ring cutter 7: Exemplarily, the first half cylinder 55 and the second half cylinder The inside of the body 54 is 2.5 to 17.5 cm away from the cutting edge 53. A ring knife draw-in groove 57 is provided, which can place ³ soil ring knives 7 of 100 cm consistent with the international general ring knife model, between different depths or samples. During sampling, the locking key 56 can be opened, the second half cylinder 54 can be peeled off, and the free replacement of the soil ring knife 7 can be realized.

Further, the locking key 56 includes a wedge-shaped protrusion 51 provided on the side wall of the second half cylinder 54, and a groove 52 provided on the first half cylinder 55 to match the wedge-shaped protrusion 51, so The wedge-shaped protrusion 51 and the groove 52 are engaged with each other.

The working process of the present utility model is:

When collecting soil samples, the fixed plate 23 is first placed on the required sampling position, and then the ground rivet 25 is pushed into the soil to play a fixed role and enhance the stability of the earth taker. When sampling on relatively soft land, it can be stepped on Pedal 24 helps fix sampling equipment, pulls up two gears and lifts handle 42 simultaneously, drives auger rod 3 to move down, and sampling pipe 5 is pressed into corresponding depth in the soil, can reduce labor intensity by gear and lever principle, improves When encountering hard soil, the sampling tube 5 can be pushed into the corresponding depth by tapping the striking head 1, and the actual operation process can freely choose the soil entry method according to the actual situation. After the soil collection is finished, one only needs to step on the foot pedal 24 and simultaneously press down the two gear pull handles 42 to drive the auger rod 3 to move upwards, and the sampling tube 5 can be easily taken out. The friction force with the soil auger is relatively large, and it is difficult to lift. It is often taken out by shaking the soil auger to loosen the soil, but this process is very easy to cause damage to the original structure of the soil. The utility model uses the principle of leverage to take out the sample tube 5 after the sampling is completed. Lift the soil easily, greatly reducing the labor intensity while retaining the original structure of the soil.

Exemplarily, taking soil bulk density sampling in the 0-20cm soil layer as an example, step on the pedal 24, pull up the two-gear lifting handle 42 to press the sampling tube 5 into the soil for 20cm, and then press down the two gears to lift The handle 42 is easily taken out of the sampling tube 5 through the auger rod 3, the lock key 56 is opened, the second half cylinder 54 is peeled off, and the first ring cutter 71 and the second ring cutter installed in the ring cutter slot 57 are taken out. Knife 72, the third ring knife 73, wherein, the sampling depth of the first ring knife 71 is 2.5～7.5cm, the sampling depth of the second ring knife 72 is 7.5～12.5cm, the sampling depth of the third ring knife 73 is 12.5～ 17.5cm, the first ring cutter 71 and the third ring cutter 73 can be used to measure the soil bulk density of the 0-10cm and 10-20cm soil layers respectively, and the second ring cutter 72 can meet the measurement requirements of the 0-20cm soil layer bulk density. If you need to measure deeper soil layers, you only need to reload 3 empty ring cutters, continue to press the sampling tube into the soil 20cm on the basis of the first sampling, and take out the soil in the 20-40cm soil layer. At this time, the first The ring cutter 71 and the third ring cutter 73 can be used to measure the soil bulk density of the 20-30cm and 30-40cm soil layers respectively, and the second ring cutter 72 can meet the measurement requirement of the 20-40cm soil layer bulk density. If you need to measure a deeper layer, you can continue to drill into a deeper layer of soil according to the above method.

To sum up, the utility model can freely choose two ways of knocking the striking head 1 or lifting the two gear pull rods 4 upwards according to the actual situation when sampling, and drives the auger rod 3 to move and send the sampling tube 5 into the soil to a corresponding depth After the sampling is completed, just press down the two gear pull rods 4 to easily pull the sampling tube 5 out of the soil through the principle of gear helix and leverage, avoiding the damage to the original soil caused by manual lifting and shaking in the traditional sampling process. After the soil is taken out, open the sampling tube 5, and the ring cutter at the corresponding depth in the tube can be taken out according to the measurement needs, and the physical indicators such as soil bulk density can be measured. When collecting another depth or sample, you only need to install a new ring cutter. .

It should be noted that all the parts of the soil extractor described in the utility model are made of steel or alloy materials to ensure the strength of the sampler.

In the above solutions, the specifications of the device can be changed according to actual needs. The description of the above embodiments is only proposed as an example of the technical solution of the present utility model, and not as a single restriction on the structure and function of the device. The beneficial effect of the technical solution of the utility model is that on the basis of the traditional soil fetching device, using the principle of the screw and the lever, it is easy to use and efficient, and can not only meet the needs of general deep soil sampling, but also meet the sampling needs of different depths for bulk density measurement. It is of great significance to study soil resources.

For those skilled in the art, it can be clearly understood that the above-mentioned specific example is only the preferred solution of the present utility model, so those skilled in the art may make improvements and changes to some parts of the present utility model, and what is reflected is still The principle of the utility model, what realize still is the purpose of the utility model, all belong to the protected scope of the utility model.

Claims (9)

1. a kind of earth taker that can be used for testing deep soil body bulk density is characterized in that, comprises base (2), auger rod (3), band gear lift rod (4) and sampling pipe (5); Wherein, The base (2) is fixedly connected to the ground, a pair of geared pull rods (4) are installed on the top of the base (2), and the auger rod (3) is fixed between the pair of geared pull rods (4), which are combined into a gear system; the screw thread (31) on the auger rod (3) meshes with the gear (41) on the geared pull rod (4) to form a lever system; the sampling tube (5) is installed at the bottom of the auger rod (3) . 2. The soil fetcher that can be used to test the bulk density of deep soil according to claim 1, characterized in that, the base (2) includes a fixed plate (23) arranged at the bottom, and the fixed plate (23) is placed on The position to be sampled is pushed into the soil at the position to be sampled by ground riveting (25), the support frame (22) is installed on the fixed plate (23), and the top support (21) is arranged on the support frame (22), with a gear Pull bar (4) is installed on the top support (21). 3. The soil fetcher that can be used for testing the bulk density of deep soil according to claim 2, characterized in that, the fixed plate (23) is provided with a foot pedal (24) for stepping on and fixing it. 4. The soil fetcher that can be used to test the bulk density of deep soil according to claim 1, characterized in that the top of the base (2) is connected to a pair of geared pull rods (4) through rivets (6) . 5. according to claim 1, can be used for testing the earth-moving device of deep layer soil bulk density, it is characterized in that, the top of described auger rod (3) is provided with the striking head (1) that auxiliary sampling tube (5) pushes . 6. The soil fetcher that can be used for testing the bulk density of deep soil according to claim 1, characterized in that, the auger rod (3) is provided with scale markings for accurate sampling. 7. according to the described earth taking device that can be used for testing deep soil bulk density according to claim 1, it is characterized in that, described sampling pipe (5) comprises first half cylinder (55) and the second half cylinder that can be stripped (54); wherein, the first half-cylinder (55) and the second half-cylinder (54) are locked together by the locking key (56), and the top of the first half-cylinder (55) and the screw The drill rods (3) are connected, and the lower parts of the first half cylinder (55) and the second half cylinder (54) are provided with cutting edges (53). 8. according to claim 7, can be used for testing the earth-moving device of deep layer soil bulk density, it is characterized in that, described first semi-column (55) and second semi-column (54) interior are provided with several for Place the ring cutter slot (57) of the soil ring cutter (7). 9. The soil fetcher that can be used to test the bulk density of deep soil according to claim 7, characterized in that, the locking key (56) includes a wedge-shaped protrusion arranged on the side wall of the second half cylinder (54) A protrusion (51), and a groove (52) arranged on the first half cylinder (55) to match the wedge-shaped protrusion (51), and the wedge-shaped protrusion (51) and the groove (52) engage with each other.