Ploughing directional depth sludge soil sample collection device

Abstract

The utility model provides a cultivated land directional depth silt soil sample collecting device, which relates to the technical field of soil detection sampling and comprises a pipe body, a plurality of sampling ports are annularly formed in the side part of the bottom end of the pipe body, a baffle is arranged on each sampling port, a guide rail on which the baffle can vertically slide is arranged in the pipe body, and the guide rail is connected with the pipe body. The baffle extends to the position above the pipe body through a linkage control assembly, a piston is arranged in the pipe body in a clearance sliding fit mode, and the piston extends to the position above the pipe body through a pull rod. According to the farmland directional depth sludge soil sample collection device, during sampling, the baffle plate blocks the sampling port in an initial state to prevent sludge from entering the pipe body when the pipe body does not reach a specified depth, when the pipe body is inserted into the specified depth, the linkage plate is pulled to open the baffle plate, and then the pull rod is used for pulling the piston to suck the sludge soil sample at the depth into the pipe body; after sampling is completed, the linkage plate is loosened, the baffle covers the sampling opening, the soil sample is prevented from flowing out of the pipe body, and the situation of empty sampling is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of soil detection and sampling, in particular to a device for collecting directional deep silt soil samples of cultivated land. Background Art

[0002] At present, most agricultural technicians use "straight tube samplers" for deep sampling operations. The basic structure of this traditional "straight tube sampler" is a thin and hollow straight tube with a handle. Agricultural technicians insert the thin and long straight tube into the soil layer of the cultivated land, so that the loam can enter the thin and long straight tube layer by layer to form a mud core; after holding the handle to pull out the tube body to bring out the mud core, shake out the mud core to provide soil samples for soil testing. However, we have been engaged in soil samplers for a long time and found that this "straight tube sampler" has technical defects in actual use, such as "it is not easy to bring out the mud core when pulling the tube, and the one-time sampling success rate is low", that is, the soil slides out of the tube again during the tube pulling process, especially when deep sampling operations are carried out on field soil with high viscosity, "empty sampling" often occurs, and the sampling efficiency is low; secondly, affected by the depth of the sampling tube, during the insertion of the deeper soil, the tube will be quickly filled with shallower soil, resulting in the inability of the soil to continue to enter the sampling tube when inserted into the deep soil, resulting in the inability to sample. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the utility model provides a device for collecting directional deep silt soil samples in cultivated land, which solves the problems raised in the above-mentioned background technology.

[0005] (II) Technical solution

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a directional deep silt soil sample collection device for cultivated land, including a tube body, a plurality of sampling ports are circumferentially opened on the side of the bottom end of the tube body, each sampling port is provided with a baffle, a guide rail for the baffle to slide vertically is arranged in the tube body, the baffle extends to the top of the tube body through a linkage control component, a piston is adapted for sliding in the gap in the tube body, and the piston extends to the top of the tube body through a pull rod.

[0007] Preferably, the linkage control assembly includes a linkage plate, a connecting rope, a guide sleeve and a guide rod slidably adapted on the guide sleeve, the linkage plate is sleeved outside the pull rod and is connected to the baffles one by one through the connecting rope, and the linkage plate is connected to the top end of the guide rod.

[0008] Preferably, the guide sleeve is transversely threadedly connected with a locking bolt corresponding to the guide rod.

[0009] Preferably, a spring is provided between the baffle and the top of the guide rail.

[0010] Preferably, a cone is provided at the bottom of the tube body.

[0011] Preferably, the guide rod is provided with limit rings on both the upper and lower sections of the guide sleeve.

[0012] Preferably, at least four sampling ports are provided, and the four sampling ports are distributed at equal angles around the center of the tube body.

[0013] (III) Beneficial effects

[0014] The utility model provides a device for collecting directional deep silt soil samples in cultivated land. It has the following beneficial effects:

[0015] 1. The directional depth silt soil sample collection device for cultivated land, when sampling, the baffle will block the sampling port in the initial state to prevent silt from entering the tube body before the tube body reaches the specified depth. When the tube body is inserted to the specified depth, first pull the linkage plate to open the baffle, and then use the pull rod to pull the piston to draw the silt soil sample at the depth into the tube body. After the sampling is completed, the linkage plate is loosened to make the baffle cover the sampling port to prevent the soil sample from flowing out of the tube body, thereby avoiding the occurrence of empty sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an axonometric drawing of the utility model;

[0017] Figure 2 It is a side sectional view of the utility model;

[0018] Figure 3 It is a partial schematic diagram of the side section of the bottom of the tube body of the present invention.

[0019] In the figure: 1 tube body, 2 cone, 3 sampling port, 4 baffle, 5 guide rail, 6 connecting rope, 7 linkage plate, 8 piston, 9 pull rod, 10 guide sleeve, 11 guide rod, 12 locking bolt, 13 limit ring. DETAILED DESCRIPTION

[0020] The utility model provides a device for collecting silt soil samples in a directional manner in cultivated land. Figure 1-3 As shown, it comprises a tube body 1, and a plurality of sampling ports 3 are circumferentially opened at the bottom side of the tube body 1, and a baffle 4 is provided on each sampling port 3. At least four sampling ports 3 are provided, and the four sampling ports 3 are distributed at equal angles around the center of the tube body 1. It enables sampling in four directions, thereby improving the uniformity and accuracy of sampling.

[0021] A guide rail 5 is provided inside the tube body 1 for the baffle 4 to slide vertically, and a spring is provided between the baffle 4 and the top of the guide rail 5. Under normal circumstances, the baffle 4 blocks the sampling port 3 under the action of the spring. The baffle 4 extends to the top of the tube body 1 through the linkage control component, and the opening and closing of the sampling port 3 by the baffle 4 is controlled by the linkage control component. A piston 8 is adapted for sliding in the gap inside the tube body 1, and the guide rail 5 is located in the wall of the tube body 1, which does not affect the lifting of the piston 8. The piston 8 extends to the top of the tube body 1 through the pull rod 9. The lifting and lowering of the piston 8 is driven by the pull rod 9, which is similar to the principle of a syringe. When the piston 8 moves upward, a negative pressure space is formed under the piston 8, and the negative pressure is used to suck the sludge in the deep into the tube body 1 to complete the sampling.

[0022] like Figure 2-3 As shown, the linkage control assembly includes a linkage plate 7, a connecting rope 6, a guide sleeve 10 and a guide rod 11 slidably adapted on the guide sleeve 10. The linkage plate 7 is sleeved outside the pull rod 9 and is connected to the baffles 4 one by one through the connecting rope 6. When the linkage plate 7 moves upward, it will link multiple baffles 4 to open and close the sampling ports 3 through the connecting rope 6. The linkage plate 7 is connected to the top of the guide rod 11.

[0023] In order to position the linkage plate 7 after it moves upward to a certain height, a locking bolt 12 corresponding to the guide rod 11 is transversely threadedly connected to the guide sleeve 10. When the linkage plate 7 is pulled upward until the sampling port 3 is opened, the locking bolt 12 is tightened to position the guide rod 11 and the linkage plate 7 at a specified height to prevent the baffle 4 from automatically resetting during the soil extraction process.

[0024] In order to facilitate the determination of the position of the baffle 4, the guide rod 11 is provided with limit rings 13 on the upper and lower sections of the guide sleeve 10, and the diameter of the limit ring 13 is larger than the diameter of the guide sleeve 10. When the limit ring 13 located above the guide rod 11 contacts the guide sleeve 10, the baffle 4 just blocks the sampling port 3, and when the limit ring 13 located below the guide rod 11 contacts the guide sleeve 10, the baffle 4 just completely leaves the sampling port 3.

[0025] The bottom of the pipe body 1 is provided with an insert cone 2, so as to facilitate the pipe body 1 to be inserted into a specified mud layer depth.

[0026] In order to understand the specific insertion depth of the tube body 1 , a scale may be provided on the outside of the tube body 1 .

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for collecting directional deep silt soil samples in cultivated land, characterized in that: The invention comprises a tube body (1), wherein a plurality of sampling ports (3) are circumferentially opened on the side of the bottom end of the tube body (1), each sampling port (3) is provided with a baffle (4), a guide rail (5) is provided inside the tube body (1) for the baffle (4) to slide vertically, the baffle (4) is extended to the top of the tube body (1) through a linkage control component, a piston (8) is slidingly adapted in the gap inside the tube body (1), and the piston (8) is extended to the top of the tube body (1) through a pull rod (9).

2. The device for collecting directional deep silt soil samples in cultivated land according to claim 1, characterized in that: The linkage control component comprises a linkage plate (7), a connecting rope (6), a guide sleeve (10) and a guide rod (11) slidably fitted on the guide sleeve (10); the linkage plate (7) is sleeved outside the pull rod (9) and is connected to the baffles (4) one by one through the connecting rope (6); the linkage plate (7) is connected to the top end of the guide rod (11).

3. A device for collecting directional deep silt soil samples in cultivated land according to claim 2, characterized in that: The guide sleeve (10) is transversely threadedly connected with a locking bolt (12) corresponding to the guide rod (11).

4. The device for collecting directional deep silt soil samples in cultivated land according to claim 1, characterized in that: A spring is arranged between the baffle (4) and the top of the guide rail (5).

5. The device for collecting directional deep silt soil samples in cultivated land according to claim 1, characterized in that: The bottom of the tube body (1) is provided with an insert cone (2).

6. The device for collecting directional deep silt soil samples in cultivated land according to claim 3, characterized in that: The guide rod (11) is located on the guide sleeve (10) and is provided with limit rings (13) on both the upper and lower sections.

7. The device for collecting directional deep silt soil samples in cultivated land according to claim 1, characterized in that: At least four sampling ports (3) are provided, and the four sampling ports (3) are distributed at equal angles around the center of the tube body (1).

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