Saline-alkali soil stratified sampler

Abstract

The saline-alkali soil stratified sampler comprises a first supporting column and a second supporting column, a first connecting plate and a second connecting plate which are vertically distributed are fixedly installed on the side wall, close to the second supporting column, of the first supporting column, and a third connecting plate is fixedly installed on the side wall, close to the first supporting column, of the second supporting column. Wherein the third connecting plate is located between the first connecting plate and the second connecting plate, and a threaded pipe is fixedly installed between the first connecting plate and the second connecting plate. By designing the stratified sampling structure and the pedal device, during use, the screw rod is rotated through the turntable to drive the sampling tube to move downwards to the sampling depth, after sampling is completed, the screw rod is reversely rotated to drive the sampling tube to exit from the ground, and the sampling tube rotates around the threaded rod after exiting so as to separate the sampling tube from the sampling head; therefore, soil samples with different depths are obtained, and the low collection precision caused by soil sample mixing in the sampling process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of samplers, in particular to a saline-alkali soil stratification sampler. Background Art

[0002] Saline-alkali land refers to land where the salt contained in the soil affects the normal growth of crops. The essence of its formation is mainly the horizontal and vertical redistribution of various soluble salts on the ground, so that the salt gradually accumulates on the soil surface in the salt-collecting area. In order to reduce water evaporation and improve the use of saline-alkali land, it is necessary to collect soil and then detect and analyze the changes in harmful or beneficial components in the soil, and propose effective measures and methods to improve the soil.

[0003] Traditional soil drilling sampling for soil research has a large sampling depth each time and requires multi-point sampling to obtain mixed soil samples, resulting in low sampling accuracy. The measured soil salt content data is significantly different from the actual value, which in turn affects the soil detection data and needs certain improvements.

[0004] Therefore, in response to the above problems, we propose a saline-alkali soil stratification sampler. Utility Model Content

[0005] The utility model aims to provide a saline-alkali soil stratification sampler to solve the problems raised by the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a saline-alkali land soil stratified sampler, comprising a first support column and a second support column, wherein the first support column is fixedly installed with a first connecting plate and a second connecting plate distributed up and down on the side wall close to the second support column, and the second support column is fixedly installed with a third connecting plate on the side wall close to the first support column, wherein the third connecting plate is located between the first connecting plate and the second connecting plate, a threaded tube is fixedly installed between the first connecting plate and the second connecting plate, a stratified sampling structure is arranged inside the threaded tube, and a storage groove is opened on the side walls of the first support column and the second support column which are far away from each other, and a pedal device is arranged inside the storage groove.

[0007] As a further description of the utility model: the layered sampling structure includes a sampling tube, the bottom side wall of the sampling tube is funnel-shaped, a sampling cavity is opened inside the sampling tube, and a threaded cavity is opened inside the sampling tube above the sampling cavity.

[0008] As a further description of the utility model: a sampling head is arranged directly above the sampling tube, a threaded rod is fixedly installed at the bottom of the sampling head, the outer diameter of the threaded rod matches the inner diameter of the threaded cavity, and the sampling tube is threadedly connected to the sampling head through the threaded cavity and the threaded rod.

[0009] As a further description of the present invention: an insertion rod is fixedly installed at the bottom of the threaded rod, the outer diameter of the insertion rod is smaller than the inner diameter of the sampling cavity, and the outer wall of the insertion rod is not provided with upward barbs.

[0010] As a further description of the utility model: a screw rod threadably connected to the threaded pipe is fixedly installed on the top of the sampling head, and a turntable is fixedly installed on one end of the screw rod away from the sampling head.

[0011] As a further description of the utility model: the pedal device includes a foot pedal, a connecting block is rotatably connected inside the foot pedal, an outer wall on one side of the connecting block is fixedly connected to the second support column, a connecting shaft passes through the connecting block, and both ends of the connecting shaft are rotatably connected to the foot pedal, a torsion spring is sleeved on the connecting shaft, and the two ends of the torsion spring are respectively fixedly connected to the connecting block and the foot pedal, and a groove is provided on the side wall of the foot pedal away from the second support column.

[0012] As a further description of the utility model: a bearing ring is fixedly installed inside the third connecting plate, the inner diameter of the bearing ring matches the outer diameter of the threaded tube, and a handle is fixedly installed on the side walls of the first support column and the second support column that are away from each other.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model designs a stratified sampling structure and a pedal device on a saline-alkali soil stratified sampler. When in use, the screw rod is rotated by a turntable to drive a sampling tube to move downward to a sampling depth. After the sampling is completed, the screw rod is rotated in the opposite direction to drive the sampling tube to withdraw from the ground. After the sampling tube withdraws, it rotates around the threaded rod to separate the sampling tube from the sampling head, thereby obtaining soil samples of different depths, and reducing the low collection accuracy caused by mixed soil samples during the sampling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the pedal device structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the connection block and its component structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the layered sampling structure of the utility model.

[0019] In the figure: 1. first support column; 2. second support column; 3. first connecting plate; 4. second connecting plate; 5. third connecting plate; 6. threaded tube; 7. layered sampling structure; 701. sampling tube; 702. sampling cavity; 703. threaded cavity; 704. sampling head; 705. threaded rod; 706. plug rod; 707. screw rod; 708. turntable; 8. storage slot; 9. pedal device; 901. foot pedal; 902. connecting block; 903. connecting shaft; 904. torsion spring; 905. groove; 10. bearing ring; 11. handle. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 4 The utility model provides a technical solution: a saline-alkali soil stratified sampler, comprising a first support column 1 and a second support column 2, wherein the first support column 1 is fixedly installed with a first connecting plate 3 and a second connecting plate 4 distributed up and down on the side wall close to the second support column 2, and the second support column 2 is fixedly installed with a third connecting plate 5 on the side wall close to the first support column 1, wherein the third connecting plate 5 is located between the first connecting plate 3 and the second connecting plate 4, and a threaded tube 6 is fixedly installed between the first connecting plate 3 and the second connecting plate 4, and a stratified sampling structure 7 is arranged inside the threaded tube 6, and a storage groove 8 is opened on the side walls of the first support column 1 and the second support column 2 which are far away from each other, and a pedal device 9 is arranged inside the storage groove 8.

[0022] In this embodiment, the layered sampling structure 7 includes a sampling tube 701 , the bottom side wall of the sampling tube 701 is funnel-shaped, a sampling cavity 702 is provided inside the sampling tube 701 , and a threaded cavity 703 is provided above the sampling cavity 702 inside the sampling tube 701 .

[0023] During specific use: the sampling tube 701 can be inserted into the ground to take out the soil layer in a cylindrical shape.

[0024] In this embodiment: a sampling head 704 is arranged directly above the sampling tube 701, a threaded rod 705 is fixedly installed at the bottom of the sampling head 704, the outer diameter of the threaded rod 705 matches the inner diameter of the threaded cavity 703, and the sampling tube 701 is threadedly connected to the sampling head 704 through the threaded cavity 703 and the threaded rod 705.

[0025] When used specifically, the threaded rod 705 and the threaded cavity 703 are used in coordination to facilitate the installation and removal of the sampling tube 701 and the sampling head 704 , and to facilitate the removal of the sampling soil layer inside the sampling tube 701 .

[0026] In this embodiment: an insertion rod 706 is fixedly installed at the bottom of the threaded rod 705, the outer diameter of the insertion rod 706 is smaller than the inner diameter of the sampling cavity 702, and the outer wall of the insertion rod 706 is not provided with upward barbs.

[0027] When used specifically, the barbs can fix the sampling soil layer on the insertion rod 706 when the sampling tube 701 is separated from the sampling head 704 .

[0028] In this embodiment, a screw rod 707 threadedly connected to the threaded tube 6 is fixedly installed on the top of the sampling head 704 , and a turntable 708 is fixedly installed on one end of the screw rod 707 away from the sampling head 704 .

[0029] During specific use: the turntable 708 can drive the screw rod 707 to rotate inside the threaded tube 6 to adjust the height of the sampling tube 701 .

[0030] In this embodiment: the pedal device 9 includes a foot pedal 901, which is rotatably connected to a connecting block 902 inside the foot pedal 901, and an outer wall on one side of the connecting block 902 is fixedly connected to the second support column 2. A connecting shaft 903 runs through the connecting block 902, and both ends of the connecting shaft 903 are rotatably connected to the foot pedal 901. A torsion spring 904 is sleeved on the connecting shaft 903, and both ends of the torsion spring 904 are fixedly connected to the connecting block 902 and the foot pedal 901 respectively, and a groove 905 is provided on the side wall of the foot pedal 901 away from the second support column 2.

[0031] During specific use: the foot pedal 901 can rotate around the connecting block 902 to be expanded or stored. The foot pedal 901 can cooperate with the user's foot to give the sampler downward pressure to reduce the lifting phenomenon caused by the downward movement of the sampling tube 701 during the sampling process.

[0032] In this embodiment: a bearing ring 10 is fixedly installed inside the third connecting plate 5, the inner diameter of the bearing ring 10 matches the outer diameter of the threaded tube 6, and a handle 11 is fixedly installed on the side walls of the first support column 1 and the second support column 2 away from each other.

[0033] During specific use: the bearing ring 10 can rotate around the threaded tube 6 to adjust the angle between the first support column 1 and the second support column 2, so as to facilitate the user to operate the sampler.

[0034] When in use, the stratified sampling device is carried to a designated sampling site of saline-alkali land by the handle 11, and the stratified sampling operation of soil is performed at the sampling site. During the operation, the foot pedal 901 needs to be unfolded around the connecting block 902, and the foot pedal 901 needs to be stepped on, and the third connecting plate 5 and the second supporting column 2 need to be rotated around the threaded tube 6 through the bearing ring 10 to adjust them to an angle convenient for the user to operate.

[0035] Then, the user rotates the screw rod 707 through the turntable 708 to drive the sampling tube 701 to move downward to the sampling depth of the saline-alkali soil to perform the sampling operation.

[0036] Finally, after the sampling is completed, the reverse rotating screw 707 drives the sampling tube 701 to withdraw from the ground. After the sampling tube 701 withdraws, it rotates around the threaded rod 705 to separate the sampling tube 701 from the sampling head 704, thereby obtaining soil samples of different depths. According to different samples, tests are carried out and treatment plans are made to provide standards for saline-alkali land soil treatment.

[0037] The stratified sampling device of the utility model has a simple structure and is easy to operate, and reduces the disadvantage of low collection accuracy caused by mixed soil samples during the sampling process.

[0038] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A saline-alkali soil stratification sampler, comprising a first support column (1) and a second support column (2), characterized in that: A first connecting plate (3) and a second connecting plate (4) are fixedly installed on the side wall of the first supporting column (1) close to the second supporting column (2), and a third connecting plate (5) is fixedly installed on the side wall of the second supporting column (2) close to the first supporting column (1), wherein the third connecting plate (5) is located between the first connecting plate (3) and the second connecting plate (4), a threaded tube (6) is fixedly installed between the first connecting plate (3) and the second connecting plate (4), and a layered sampling structure (7) is arranged inside the threaded tube (6), and a storage groove (8) is opened on the side walls of the first supporting column (1) and the second supporting column (2) away from each other, and a pedal device (9) is arranged inside the storage groove (8).

2. A saline-alkali soil stratification sampler according to claim 1, characterized in that: The layered sampling structure (7) comprises a sampling tube (701), the bottom side wall of the sampling tube (701) is funnel-shaped, a sampling cavity (702) is provided inside the sampling tube (701), and a threaded cavity (703) is provided inside the sampling tube (701) above the sampling cavity (702).

3. A saline-alkali soil stratification sampler according to claim 2, characterized in that: A sampling head (704) is arranged directly above the sampling tube (701), a threaded rod (705) is fixedly installed at the bottom of the sampling head (704), the outer diameter of the threaded rod (705) matches the inner diameter of the threaded cavity (703), and the sampling tube (701) is threadedly connected to the sampling head (704) via the threaded cavity (703) and the threaded rod (705).

4. A saline-alkali soil stratification sampler according to claim 3, characterized in that: An insertion rod (706) is fixedly mounted at the bottom of the threaded rod (705); the outer diameter of the insertion rod (706) is smaller than the inner diameter of the sampling cavity (702); and the outer wall of the insertion rod (706) is not provided with upwardly directed barbs.

5. A saline-alkali soil stratification sampler according to claim 3, characterized in that: A screw rod (707) threadedly connected to the threaded tube (6) is fixedly mounted on the top of the sampling head (704), and a rotating disk (708) is fixedly mounted on one end of the screw rod (707) away from the sampling head (704).

6. A saline-alkali soil stratification sampler according to claim 1, characterized in that: The pedal device (9) comprises a foot pedal (901), wherein a connecting block (902) is rotatably connected inside the foot pedal (901), an outer wall of one side of the connecting block (902) is fixedly connected to the second support column (2), a connecting shaft (903) passes through the inside of the connecting block (902), and both ends of the connecting shaft (903) are rotatably connected to the foot pedal (901), a torsion spring (904) is sleeved on the connecting shaft (903), and both ends of the torsion spring (904) are respectively fixedly connected to the connecting block (902) and the foot pedal (901), and a groove (905) is provided on the side wall of the foot pedal (901) away from the second support column (2).

7. A saline-alkali soil stratification sampler according to claim 1, characterized in that: A bearing ring (10) is fixedly mounted inside the third connecting plate (5), the inner diameter of the bearing ring (10) matches the outer diameter of the threaded tube (6), and a handle (11) is fixedly mounted on the side walls of the first support column (1) and the second support column (2) that are away from each other.

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