Sampler suitable for spray-seeding matrix

Abstract

The sampler comprises a cutting ring, a main rod is connected to the upper end of the cutting ring in a buckled mode, scale marks are arranged on the main rod, a handle is connected to the upper end of the main rod, the sampler further comprises a limiting device, the limiting device is connected with the main rod in a threaded mode, and the limiting device is connected with the main rod in a threaded mode. The limiting device is hinged to the main rod so that the main rod can rotate and move relative to the limiting device when the handle is rotated, and a plurality of supporting legs are hinged to the limiting device and can stretch out and draw back. The soil sampling device can ensure that the force applied to soil sampling each time is the same and the direction is vertically downward, simultaneously meets the soil sampling requirements of different soil layer thicknesses, simplifies the process of taking out the cutting ring and scraping a matrix, takes out a complete matrix sample by opening the side wall of the cutting ring, has the advantages of simplicity in operation and high working efficiency, and is suitable for popularization and application. The problems that the structure is damaged in the spray seeding matrix sampling process and the subsequent experiment result is influenced are effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of soil sampling, and particularly relates to a sampler suitable for spraying matrix soil sampling. Background Art

[0002] As a carrier for vegetation restoration, the spraying matrix has a special soil structure: high porosity, good aggregate effect, good air and water permeability, and good erosion resistance. To detect the physical and chemical properties of the spraying matrix or verify its segregation degree, it is often necessary to collect undisturbed soil samples using a core cutter. During the sampling process, it is necessary to maintain the integrity of the soil block to avoid artificially damaging the soil structure and affecting the experimental results.

[0003] Most existing samplers drill into the soil by hammering the core cutter. During the hammering process, it is extremely easy to damage the soil structure and change its bulk density. Moreover, it is very difficult to take out the soil sample from the core cutter in its original state. When the soil has high viscosity, it is even more difficult to take out the soil and it is very difficult to maintain the original state of the soil, thus affecting the detection results of the segregation degree. Summary of the Utility Model

[0004] In view of the above technical problems, the utility model provides a sampler suitable for spraying matrix soil sampling, which ensures that the force used for each soil sampling is the same and the direction is vertically downward, and at the same time meets the soil sampling requirements for different soil layer thicknesses; simplifies the process of taking out the core cutter and leveling the matrix; effectively avoids the problem that the structure of the spraying matrix is damaged when it is removed from the core cutter, affecting the subsequent experimental results.

[0005] To achieve the above object, the technical solution adopted by the utility model is: a sampler suitable for spraying matrix soil sampling, including a core cutter, a main rod is snap-connected to the upper end of the core cutter, scale lines are arranged on the main rod, a handle is connected to the upper end of the main rod, and a limiting device is further included. The limiting device is threadedly connected to the main rod so that the main rod can rotate and move relative to the limiting device when the handle is rotated. A plurality of support legs are hinged to the limiting device, and the support legs are telescopic.

[0006] Preferably, an embedding groove is arranged on the lower circumference of the limiting device, and the support legs are located in the embedding groove.

[0007] Preferably, the support leg includes a fixed end connected to the embedding groove and a telescopic end inserted into the fixed end. The end of the telescopic end is provided with a tip, and a limiting buckle is further arranged on the surfaces of the fixed end and the telescopic end.

[0008] Preferably, a spirit level is arranged on both the front and back sides of the handle.

[0009] Preferably, the core cutter includes a first core cutter part and a second core cutter part. One side edge between the first core cutter part and the second core cutter part is hinged, and the other side edges are connected by a buckle switch for buckling, so that the core cutter can be opened along the side wall.

[0010] Preferably, it further includes a soil cutting device for laterally separating the soil sample.

[0011] Preferably, the soil cutting device includes a rotating part fixedly connected to the main rod. The rotating part is located above the core cutter and is connected to a supporting part by a bearing. It also includes a cutting part connected to the supporting part.

[0012] Preferably, there are two cutting parts, which respectively include screws threadedly connected to the supporting part. The screws are telescopic, and a cutter is fixedly connected to the lower end. The upper end of the screw is connected to a rotating handle.

[0013] Preferably, the cutting part includes a semi-circular guide groove on the supporting part. Two guide rods are connected in the guide groove. The bottom of the guide rods corresponds to the bottom of the core cutter, and a cutting wire is connected to the bottom of the guide rods. Sliding the guide rods can cut off the matrix at the bottom of the core cutter.

[0014] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0015] 1. The main rod and the rotating part are provided so that the core cutter can smoothly penetrate into the deep soil profile. Scale lines and a spirit level are provided on the main rod and are limited by a limiting device to ensure that the same force is used for each soil sampling, and at the same time, the soil sampling requirements for different soil layer thicknesses are met;

[0016] 2. The cutter is driven by a screw drive method, avoiding digging out the core cutter by shoveling downwards, and improving work efficiency;

[0017] 3. The core cutter is set as a first core cutter part and a second core cutter part, with one side edge hinged and the other side edges buckled and connected. After soil sampling is completed, the core cutter can be opened along the interface, so that the undisturbed soil can smoothly fall off without damaging its structure, so as not to affect the experimental results. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a structural schematic diagram of the present utility model;

[0020] Figure 2Structural schematic diagram of the soil cutting device and the core cutter in the present utility model;

[0021] Figure 3 Structural schematic diagram of the cutting part in the present utility model;

[0022] In each of the above figures: 1, main rod; 101, handle; 102, spirit level; 103, scale line; 2, limiting device; 201, support leg; 202, fixed end; 203, telescopic end; 204, limiting buckle; 205, embedding groove; 206, tip; 3, soil cutting device; 301, rotating part; 302, rotating handle; 303, ball bearing; 304, supporting part; 305, cutting part; 306, screw; 307, cutter; 4, core cutter; 401, lock switch; 402, first core cutter part; 403, second core cutter part; 501, semi-circular guide groove; 502, guide rod; 503, cutting line. Detailed implementation manners

[0023] Next, the present utility model will be specifically described through exemplary implementation manners. However, it should be understood that without further description, the elements, structures, and features in one implementation manner can also be beneficially combined into other implementation manners.

[0024] Embodiment 1:

[0025] A sampler applicable to the sampling of spraying matrix, referring to Figure 1 , 2 , includes a main rod 1, on which a scale line 103 is provided, the top is connected to a handle 101, and spirit levels 102 are arranged on the front and back sides of the handle 101 for observing that the direction of the main rod 1 entering the matrix is vertically downward;

[0026] It also includes a limiting device 2 and a core cutter 4. The main rod 1 is threadedly connected to the limiting device 2, and the upper end of the core cutter 4 is snap-connected to the lower end of the main rod 1. By rotating the handle, the main rod 1 can rotate and move relative to the limiting device 2, thereby driving the core cutter to rotate downward and drill into the deep soil for sampling;

[0027] To keep the limiting device 2 stable, a plurality of support legs 201 are hinged to the limiting device 2;

[0028] Specifically, the limiting device 2 is of an annular structure, and a plurality of embedding grooves 205 are provided on the lower circumference of the limiting device 2, and the support legs 201 are hinged in the embedding grooves 205;

[0029] Further, the support leg 201 includes a fixed end 202 and a telescopic end 203. To make the length of the support leg adjustable and ensure the stability of the sampling process, the fixed end 202 is inserted into the telescopic end 203, and a number of limit buckles 204 are provided on the fixed end 202 and the telescopic end 203. A tip 206 is provided at the bottom of the telescopic end 203 so that it can be inserted into the spraying substrate;

[0030] To maintain the original state of the soil, the core cutter 4 is provided in a segmented form and can be opened. It includes a first core cutter part 402 and a second core cutter part 403. The first core cutter part 402 and the second core cutter part 403 are hinged between the side edges, and a lock switch 401 is provided between the other side edges. Closing the lock switch 401 can make the core cutter 4 form a cylinder, and opening the lock switch 401 can make the core cutter 4 open along the side wall to take out a complete spraying substrate sample;

[0031] It also includes a soil cutting device 3. The soil cutting device 3 includes a rotating part 301, which is rotatably connected to a support part 304 through a ball bearing 303, so that the rotating part 301 can not only rotate horizontally with the main rod 1 but also drive the support part 304 to perform longitudinal displacement. It also includes a cutting part 305 threadedly connected to the support part 304. The cutting part 305 includes a telescopic screw 306 to adapt to core cutters of different heights. Further, the lower end of the screw 306 is fixedly connected to a cutting knife 307, and the upper end is connected to a rotating handle 302. Rotating the rotating handle 302 makes the screw 306 drive the cutting knife 307 to rotate inside the spraying substrate and cut off the substrate along the bottom of the core cutter 4.

[0032] The working process is as follows:

[0033] When it is necessary to sample the spraying substrate, first place the core cutter 4 inside the rotating part 301 and hold it firmly. Adjust the length of the screw 306 according to the height of the core cutter 4. After the bottom end of the screw 306 is flush with the bottom edge of the core cutter 4, place it at the position where the substrate sample needs to be collected;

[0034] Adjust the limit device 2 to the scale line 103 at the same height as the core cutter. Then rotate the fixed end 202 outward by a certain angle, and pull out the telescopic end 203 from the inside of the fixed end 202 to a length that can make the tip 206 touch the ground. After determining the horizontal position in combination with the spirit level 102, place the insertion end 206 on the ground to keep the device stable and horizontal;

[0035] Rotate the handle 101 in the horizontal direction to drive the main rod 1 and the rotating part 301 to rotate vertically downward, thereby pushing the core cutter 4 into the hydroseeding substrate. When the handle 101 rotates to the limiting device 2, it indicates that the descending height is exactly enough to completely immerse the core cutter 4 into the substrate. At this time, the core cutter 4 is already filled with substrate samples. Rotate the rotating handle 302, and driven by the screw 306, the cutting knife 307 rotates 180° accordingly, and the substrate can be cut along the bottom surface of the core cutter 4 inside the substrate. Then lift the device upward to complete the sampling work of the hydroseeding substrate. Finally, push the telescopic end 203 into the fixed end 202, and rotate inward by the same angle in the embedding groove 205 to make the fixed end 202 parallel to the main rod 1 to complete the storage of the device.

[0036] When it is necessary to take out the soil sample in the core cutter 4, remove the core cutter 4 from the rotating part 301, and open the lock switch 401 to open the first core cutter part 402 and the second core cutter part 403 along the side wall, and the substrate block can be taken out completely.

[0037] Embodiment 2:

[0038] Refer to Figure 3 , the difference from Embodiment 1 is that the cutting part 305 includes a semi-circular guide groove 501 arranged on the support part 304. Two guide rods 502 are slidably connected in the semi-circular guide groove 501. Cutting wires 503 are respectively connected to the bottoms of the guide rods 502, and the cutting wire 503 can be wound around one of the guide rods 502.

[0039] The working principle of the cutting part is as follows:

[0040] When taking soil, slide the two guide rods 502 to the same side. When the core cutter 4 is filled with substrate samples, make one of the guide rods 502 rotate on its own axis, and the cutting wire 503 wound around it opens. Then pull the two guide rods 502 respectively to move them to the two ends of the semi-circular guide groove 501. When moving to the endpoints of the semi-circular guide groove 501, continue to pull one of the guide rods 502, so that the guide rod 502 drives the support part 304 to continue to rotate with the center of the main rod 1 as the origin to complete the cutting of the bottom edge of the core cutter 4 and obtain a complete hydroseeding substrate core cutter sample.

[0041] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A sampler suitable for spraying substrates, characterized in that: It includes a ring knife, the upper end of which is snap-connected to a main rod, the main rod is provided with scale lines, the upper end of the main rod is connected to a handle, and also includes a limit device, the limit device is threadedly connected to the main rod so that the main rod can rotate and move relative to the limit device when the handle is turned, and a plurality of support legs are hinged on the limit device, and the support legs are retractable.

2. The sampler suitable for spraying substrate according to claim 1, characterized in that: An embedding groove is arranged on the circumference of the lower end of the limiting device, and the supporting leg is located in the embedding groove.

3. The sampler suitable for spraying matrix according to claim 2, characterized in that: The supporting leg includes a fixed end connected to the embedding groove and a telescopic end plugged into the fixed end, the end of the telescopic end is configured as a tip, and also includes a limiting buckle arranged on the surfaces of the fixed end and the telescopic end.

4. The sampler suitable for spraying substrate according to claim 1, characterized in that: Level bubbles are arranged on both the front and rear sides of the handle.

5. The sampler suitable for spraying substrate according to claim 1, characterized in that: The ring knife comprises a first ring knife part and a second ring knife part. One side of the first ring knife part and the second ring knife part are hinged, and the other side sides are locked and connected by a lock switch so that the ring knife can be opened along the side wall.

6. The sampler suitable for spraying substrate according to claim 1, characterized in that: Also included is a soil cutting device for laterally separating the soil sample.

7. The sampler suitable for spraying substrate according to claim 6, characterized in that: The soil cutting device comprises a rotating part fixedly connected to the main rod, the rotating part is located above the ring cutter, a supporting part is connected to the bearing of the rotating part, and also comprises a cutting part connected to the supporting part.

8. The sampler suitable for spraying substrate according to claim 7, characterized in that: The cutting parts are provided with two, each comprising a screw rod threadedly connected to the supporting part, the screw rod is retractable, a cutter is fixedly connected to the lower end, and a rotating handle is connected to the upper end of the screw rod.

9. The sampler suitable for spraying substrate according to claim 7, characterized in that: The cutting part includes a semi-annular guide groove located on the support part, two guide rods are connected in the guide groove, the bottom of the guide rod corresponds to the bottom of the ring knife, and the bottom of the guide rod is connected with a cutting line. The sliding guide rod can make the cutting line cut off the matrix at the bottom of the ring knife.

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