CN207332874U - A kind of soil sampling apparatus - Google Patents

Abstract

The application discloses a soil sampling device in the technical field of agricultural water and soil engineering, which includes a frame on which a sampling tube and a motor driving the rotation of the sampling tube are rotatably connected. There are a plurality of ring knives, and the plurality of ring knives form a conical drill bit around the center of the sampling tube. The ring knives are provided with a driving mechanism to make them rotate. The driving mechanism includes a support rod, and the upper end of the support rod is rotatably connected to a fixed plate, the fixed plate is connected with a fixed rod, the fixed rod is fixedly connected on the frame, the movable sleeve is slidably connected to the support rod, the movable sleeve is hinged with a support rod, the support rod is hinged with the ring cutter, and a connecting rod is hinged , the end of the connecting rod away from the support rod is hinged with the lower end of the support rod, the upper end of the movable sleeve is fixedly connected with a movable tube, a gap is provided between the movable tube and the support rod, the upper end of the movable tube is rotatably connected with a lifting plate, and the lifting plate is connected with a cylinder , the cylinder is fixedly connected to the frame.

Description

A soil sampling device

technical field

The utility model relates to the technical field of agricultural water and soil engineering, in particular to a soil sampling device.

Background technique

In the technical field of agricultural hydrotechnical engineering, soil sampling is often required. The traditional soil sampling method is to press the ring knife into the soil smoothly, and after the soil column in the ring knife emerges from the upper end of the ring knife, dig out the surrounding soil with a shovel, and take out the ring knife full of soil. When it is necessary to measure the deeper soil, it is necessary to excavate the soil surface in a large area, often to a depth of 1-2m. For cultivated soils, such large-area and high-intensity disturbed soils for raw soil sampling have a great impact on crop cultivation, so sampling time and sampling frequency are often limited, and traditional sampling methods are time-consuming, labor-intensive, and extremely inefficient. Therefore, it is necessary to study a soil sampling tool that is less destructive to the original soil and has higher efficiency on the basis of the traditional ring knife method.

Utility model content

The utility model intends to provide a soil sampling device to solve the technical problems in the prior art that the deep soil sampling is highly destructive to the original soil and the sampling efficiency is low.

In order to solve the above-mentioned technical problems, the utility model provides the following scheme: a soil sampling device, including a frame, a sampling tube and a motor driving the rotation of the sampling tube are rotatably connected to the frame, and the outer wall of the sampling tube is provided with a screw knife, and the sampling tube is sampled. The lower end of the tube is hinged with a plurality of ring knives, and the plurality of ring knives form a conical drill bit around the center of the sampling tube. The ring knives are provided with a driving mechanism to make them rotate. The driving mechanism includes a support rod, and the upper end of the support rod rotates. The fixed plate is connected with a fixed rod, and the fixed rod is fixedly connected to the frame. The movable sleeve is slidably connected to the support rod, and the movable sleeve is hinged with a support rod. There is a connecting rod, the end of the connecting rod away from the support rod is hinged with the lower end of the support rod, the upper end of the movable sleeve is fixedly connected with a movable tube, there is a gap between the movable tube and the support rod, the upper end of the movable tube is rotatably connected with a lifting plate, and the lifting plate A cylinder is connected, and the cylinder is fixedly connected on the frame.

The working principle of this scheme: When using this device for deep soil sampling, the driving mechanism is similar to the structure of an umbrella, and the cylinder is controlled to raise the lifting plate, and the lifting plate drives the movable tube and movable sleeve to rise, and the support rod rises accordingly. The end of the support rod far away from the movable sleeve is hinged with the ring knife. There is a connecting rod hinged on the support rod. The end of the connecting rod far away from the support rod is hinged with the lower end of the support rod. Contact each other to form a tapered drill bit. At this time, close the cylinder, turn on the motor, and the motor drives the sampling tube to rotate. Because the outer wall of the sampling tube is provided with a screw cutter, the soil drilling work can be carried out when the sampling tube rotates, and the sampling tube goes down to the At a certain depth, turn off the motor, raise the sampling tube by a certain distance (greater than or equal to the height of the ring cutter), open the cylinder, control the lifting plate to descend, the movable tube and the movable sleeve will descend, and the positional relationship between the support rod and the connecting rod will be changed. Spread the knife to make it rotate to the same axis as the sampling tube, close the cylinder, turn on the motor again, and continue to drill the soil. At this time, the ring knife rotates with the sampling tube, and under the cutting force of the ring knife, the ring The soil in the middle of the knife is pressed into the sampling tube, then the motor is turned off, the sampling tube is pulled out, and the soil in the sampling tube is taken out.

Beneficial effects of this scheme: In this scheme, the drive structure is used to close the ring cutter to form a drill bit, so when drilling down into the soil, the surface soil will not enter the sampling pipe, and when the deep soil is reached, the ring cutter is opened and the ring cutter cuts The soil is pressed into the sampling tube to realize the sampling of deep soil; in this device, the screw cutter set on the outer wall of the sampling tube is used to drill the soil, the drilling speed is fast, the sampling efficiency is high, and only one hole needs to be drilled That is, less damage to the original soil.

Preferred Solution 1: As an improvement of the basic solution, a bearing is provided between the support rod and the fixed plate, and a bearing is also provided between the movable tube and the lifting plate. Because the movable tube is connected with the ring knife through the support rod, and the support rod is connected with the support rod through the connecting rod, so when the sampling tube rotates, the support rod and the movable tube will also rotate accordingly, so the support rod and the fixed plate are rotatably connected, and the movable tube and the The lifting plate is rotatably connected, so the bearings are set to ensure the reliable rotation of the support rod and the movable tube, and they are respectively stably connected to the fixed plate and the lifting plate without falling off.

Preferred option 2: As an improvement of preferred option 1, a push plate is provided inside the sampling tube, and the push plate is connected with a push rod. On the frame, the push plate and the push rod are provided with a central hole, and the central hole is slidably connected with the support rod. By setting in this way, when the soil in the sampling pipe needs to be taken out, the hydraulic cylinder drives the lifting block to move downward, and the push rod and the push plate move downward accordingly, to push the soil out of the sampling pipe.

Preferred Solution 3: As an improvement of Preferred Solution 2, a bearing is provided between the push rod and the lifting block. The push rod is slidingly connected with the movable tube, so when the sampling tube rotates, the push rod will also rotate accordingly, so the push rod and the lifting block are connected in rotation; the rotation of the push rod is guaranteed to be reliable by setting a bearing between the push rod and the lifting block, And it is stably connected to the lifting block without falling off.

Description of drawings

Fig. 1 is the structural representation of a kind of soil sampling device of the present utility model;

Fig. 2 is a partial cross-sectional view of a soil sampling device of the present invention when the ring knife is deployed.

Detailed ways

The utility model is described in further detail below by means of specific embodiments:

The reference signs in the drawings of the description include: sampling tube 1, movable tube 2, support rod 3, push plate 4, push rod 5, handle 6, frame 7, motor 8, output shaft 9, belt 10, bearing 11, Fixed plate 12, lifting plate 13, lifting block 14, hydraulic cylinder 15, cylinder 16, fixed rod 17, movable cover 18, pole 19, connecting rod 20, ring knife 21.

Embodiment is shown in Figure 1 and Figure 2 basically:

A soil sampling device comprising a frame 7, a handle 6 is provided on the frame 7, a through hole is provided on the frame 7, a bearing 11 is fixed in the through hole, a sampling tube 1 is fixedly connected in the bearing 11, A motor 8 is also fixed on the frame 7, and the output shaft 9 of the motor 8 is connected with the upper end of the sampling tube 1 through a belt 10. A ring cutter 21 rotates toward the center of the sampling tube 1 to form a conical drill bit. The ring cutter 21 is provided with a drive mechanism to rotate it. The drive mechanism includes a support rod 3. The upper end of the support rod 3 is connected with a fixed plate 12 through a bearing 11 for rotation. Fixed plate 12 is connected with fixed rod 17, and fixed rod 17 is fixedly connected on the frame 7, and movable cover 18 is slidably connected on support rod 3, and movable cover 18 is hinged with support rod 19, and support rod 19 is hinged with ring knife 21, supports Connecting rod 20 is hinged on bar 19, and connecting rod 20 is hinged with supporting rod 3 lower ends away from one end of supporting rod 19, movable sleeve 18 upper ends are fixedly connected with movable pipe 2, and gap is provided between movable pipe 2 and supporting rod 3, and movable The upper end of the pipe 2 is connected with a lifting plate 13 through a bearing 11, the lifting plate 13 is connected with a cylinder 16, and the cylinder 16 is fixedly connected with the frame 7; the sampling tube 1 is provided with a push plate 4, and the push plate 4 is connected with a push rod 5, The end of the push rod 5 away from the push plate 4 is connected to the lifting block 14 through the bearing 11, the lifting block 14 is connected to the hydraulic cylinder 15, the hydraulic cylinder 15 is fixed on the frame 7, and the push plate 4 and the push rod 5 are provided with a center Holes, the central hole is slidingly connected with the support rod 3.

When using this device to carry out deep soil sampling, the driving mechanism is similar to the structure of an umbrella, and the control cylinder 16 makes the lifting plate 13 rise, and the lifting plate 13 drives the movable tube 2 and the movable sleeve 18 to rise, and the pole 19 rises along with it. Strut 19 is hinged with ring knife 21 away from an end of movable sleeve 18, is hinged with connecting rod 20 on the support rod 19, and connecting rod 20 is hinged with support rod 3 lower ends away from one end of support rod 19, under the effect of force, ring knife 21 rotates toward the center of the circle until the ring cutters 21 contact each other to form a tapered drill bit. At this time, the cylinder 16 is closed, the motor 8 is turned on, and the motor 8 drives the sampling tube 1 to rotate. When the pipe 1 rotates, it can perform soil drilling work. When the sampling pipe 1 is drilled down to a certain depth, turn off the motor 8, raise the sampling pipe 1 by a certain distance (greater than or equal to the height of the ring cutter 21), open the cylinder 16, and control the lifting plate 13 Descending, the movable tube 2 and the movable sleeve 18 descend, and the change in the positional relationship between the support rod 19 and the connecting rod 20 can propel the ring cutter 21, make it rotate to the coaxial line with the sampling tube 1, close the cylinder 16, and then turn on the motor 8. Continue to drill down the soil. At this time, the ring knife 21 rotates with the sampling tube 1. Under the cutting force of the ring knife 21, the soil in the middle of the ring knife 21 is pressed into the sampling tube 1, and then the motor 8 is turned off. , the sampling pipe 1 is set aside, the hydraulic cylinder 15 drives the lifting block 14 to move downward, and the push rod 5 and the push plate 4 move downward thereupon, and the soil is pushed out of the sampling pipe 1.

What is described above is only the embodiment of the utility model, and common knowledge such as the specific structure and characteristic known in the scheme is not described too much here. It should be pointed out that for those skilled in the art, under the premise of not departing from the structure of the utility model, some deformations and improvements can also be made, and these should also be regarded as the protection scope of the utility model, and these will not affect the utility model. Effects of novel implementations and utility of patents. The scope of protection required by this application shall be based on the content of the claims, and the specific implementation methods and other records in the specification may be used to interpret the content of the claims.

Claims (4)

1. A kind of 1. soil sampling apparatus, it is characterised in that：Including rack, probe tube is rotatably connected in the rack and driving takes The motor that sample pipe rotates, sampling pipe outer wall are equipped with circular knife, and probe tube lower end is hinged with multiple cutting rings, and multiple cutting rings are with probe tube The center of circle circumferentially forms coniform drill bit, and the cutting ring is equipped with the driving mechanism for rotating it, and the driving mechanism includes support Bar, post upper are rotatably connected to fixed plate, and fixed plate is connected with fixed link, and fixed link is fixedly connected in rack, described Movable sleeve is slidably connected on supporting rod, movable sleeve is hinged with strut, and strut is hinged with cutting ring, and connecting rod is hinged with strut, even The one end of bar away from strut is hinged with supporting rod lower end, and the activity set upper side is fixedly connected with adjustable pipe, adjustable pipe and support Gap is equipped between bar, adjustable pipe upper end is rotatably connected to lifter plate, and lifter plate is connected with cylinder, and cylinder is fixedly connected on rack On.
2. A kind of 2. soil sampling apparatus according to claim 1, it is characterised in that：Set between the supporting rod and fixed plate There is bearing, bearing also is provided between the adjustable pipe and lifter plate.
3. A kind of 3. soil sampling apparatus according to claim 2, it is characterised in that：Push plate is equipped with the probe tube, is pushed away Plate is connected with push rod, and the one end of push rod away from push plate is rotatably connected to elevator, and elevator is connected with hydraulic cylinder, and hydraulic cylinder is fixed In rack, centre bore is equipped with the push plate and push rod, centre bore is slidably connected with supporting rod.
4. A kind of 4. soil sampling apparatus according to claim 3, it is characterised in that：It is equipped between the push rod and elevator Bearing.