A surface soil sampler with controllable sampling volume

Abstract

The application discloses a surface soil sampler with controllable sampling amount, which comprises a seat plate, a pedal rotatably connected to the top of one end of the seat plate, a vertical rod fixedly connected to the top of the other end of the seat plate, an upper C-shaped guide sleeve fixedly connected to the top of one side of the vertical rod, a sampling tube slidably connected to the upper C-shaped guide sleeve, a vibration motor fixedly connected to the top of the sampling tube, one end of the pedal hingedly connected to the top of the sampling tube through a first elastic telescopic rod, and a bracket fixedly connected to the top of the pedal near one end of the seat plate. In the application, the seat plate, the sampling tube, the vibration motor, the first elastic telescopic rod, the second elastic telescopic rod, the pile, the tray, the semicircular notch and the layered piece are arranged, so that the sampler has the advantages of labor saving, convenience, fast separation of the sample and the sampling tube and layered sampling.

Description

Technical Field

[0001] This invention relates to the field of soil sampling technology, and in particular to a surface soil sampler with controllable sampling volume. Background Technology

[0002] Soil sampling is a prerequisite for evaluating and analyzing soil nutrients and pollution levels in the fields of agricultural resource utilization and environmental science. It is one of the important basic tasks for scientific and technological workers engaged in soil research. When sampling surface soil, an open-type soil sampler is often used. It consists of a handle and a sampling tube with an open bottom. After the sampling tube is inserted into the surface soil, the soil is squeezed into the sampling tube. Lifting the sampling tube will bring out the soil sample squeezed into it.

[0003] However, existing soil samplers still have shortcomings: 1. Both the insertion and removal of soil samples require manual control. Since multiple samplings are needed to improve the accuracy of the test, existing soil samplers result in high labor intensity for sampling personnel; 2. The soil is compressed inside the soil sampler, resulting in high resistance when the soil is removed from the sampler. This not only makes soil separation laborious but also leads to low separation efficiency; 3. Existing soil samplers are for depth sampling and do not have the function of extracting soil samples in layers after sampling.

[0004] Therefore, this invention proposes a surface soil sampler with controllable sampling volume. Summary of the Invention

[0005] The purpose of this invention is to provide a surface soil sampler with controllable sampling volume in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A surface soil sampler with controllable sampling volume includes a base plate. A pedal is rotatably connected to the top of one end of the base plate. A vertical pole is fixedly connected to the top of the base plate near the other end. An upper C-shaped guide sleeve is fixedly connected to the top of one side of the vertical pole. A sampling tube is slidably connected inside the upper C-shaped guide sleeve. The bottom of the sampling tube is open and a vibration motor is fixedly connected to its top. One end of the pedal is hinged to the top of the sampling tube via a first elastic telescopic rod. A bracket is fixedly connected to the top of the pedal near one end of the base plate. The bracket is hinged to the base plate via a second elastic telescopic rod. An adjusting ring is sleeved on the outside of the sampling tube. The adjusting ring is located above the upper C-shaped guide sleeve, and a locking screw is screwed through its outer peripheral wall.

[0008] As a further description of the above technical solution:

[0009] The top of the seat plate is provided with a connecting seat, and the bracket is T-shaped with its two ends of the crossbeam hinged to the two ends of the connecting seat via a second elastic telescopic rod.

[0010] As a further description of the above technical solution:

[0011] The connecting seat is of the 6-shaped type and is slidably connected to the seat plate. An adjusting screw is screwed through the top of the connecting seat.

[0012] As a further description of the above technical solution:

[0013] The bottom of the sampling tube is fixedly connected to circumferentially evenly distributed piles, and the bottom of the upright is rotatably connected to an arm plate, one end of which is fixedly connected to a tray.

[0014] As a further description of the above technical solution:

[0015] The other end of the seat plate is fixedly connected to a lower C-shaped guide sleeve located below the sampling tube. The top of the lower C-shaped guide sleeve is flush with the lower end face of the tray.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the sampling tube has a semi-circular notch that connects to the inner cavity. The openings of the semi-circular notch, the upper C-shaped guide sleeve, and the lower C-shaped guide sleeve face the same direction. Layered pieces are inserted into the semi-circular notch. The semi-circular notches are arranged at equal intervals relative to the axial direction of the sampling tube.

[0018] As a further description of the above technical solution:

[0019] An operating rod is fixedly connected to the outer peripheral wall of the layered sheet.

[0020] As a further description of the above technical solution:

[0021] A horizontal plate is fixedly connected to the bottom of the seat plate, and anchor rods are fixedly connected to both ends of the bottom of the horizontal plate and one end of the bottom of the seat plate.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0023] 1. In this invention, by setting up a pedal, a first elastic telescopic rod, a second elastic telescopic rod, a sampling tube, and a vibration motor, the sampling tube can be easily inserted into the ground surface to extract soil, and can be easily separated from the soil after extraction. It has the advantages of convenient and labor-saving operation in separating soil samples from the ground surface.

[0024] 2. In this invention, a connecting seat is slidably set on the seat plate and hinged to the second elastic telescopic rod, and an adjusting screw is set on the connecting seat. This allows for adjustment of the magnitude of the elastic thrust applied by the second elastic telescopic rod to the pedal, which is suitable for increasing the speed at which the sampling tube leaves the ground surface when sampling soil of any hardness, and greatly improves the applicability of this sampler.

[0025] 3. In this invention, by setting a pile at the bottom of the sampling tube and then rotating a tray on the upright, the sampling tube can increase the discharge speed when the pile and the tray collide during the discharge of the sample tube. In other words, it has the advantage of increasing the speed at which soil samples leave the sampling tube.

[0026] 4. In this invention, by providing circumferentially arranged semi-circular notches on the outer peripheral wall of the sampling tube, and by detachably inserting and connecting layered pieces to the semi-circular notches, this configuration enables the sampler to obtain soil samples at different depths individually.

[0027] 5. In this invention, by setting an adjusting ring and a locking screw, the sampling depth of the sampling tube can be controlled, thus having the advantage of adjusting the sampling amount. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a surface soil sampler with controllable sampling volume proposed in this invention;

[0029] Figure 2 This is a schematic diagram of the adjustment ring structure of a surface soil sampler with controllable sampling volume proposed in this invention;

[0030] Figure 3 This is a schematic diagram of the semi-circular notch of a surface soil sampler with controllable sampling volume proposed in this invention;

[0031] Figure 4 This is a schematic diagram of the layered sheet structure of a surface soil sampler with controllable sampling volume proposed in this invention;

[0032] Figure 5 This is a schematic diagram of the connection seat of a surface soil sampler with controllable sampling volume proposed in this invention.

[0033] Legend:

[0034] 1. Seat plate; 11. Connecting seat; 111. Adjusting screw; 12. Horizontal plate; 2. Pedal; 3. Upright pole; 4. Upper C-shaped guide sleeve; 5. Sampling tube; 51. Pile column; 52. Semi-circular notch; 6. Vibration motor; 7. Bracket; 8. Adjusting ring; 9. Locking screw; 101. Arm plate; 102. Tray; 103. Anchor bolt; 104. Second elastic telescopic rod; 105. Lower C-shaped guide sleeve; 106. Layered plate; 1061. Operating lever; 107. First elastic telescopic rod. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example 1

[0037] Please see Figure 1-5 A surface soil sampler with controllable sampling volume includes a base plate 1, which is a rectangular plate that is placed on the ground during sampling and serves to support other components. A horizontal plate 12 is fixedly connected to the bottom of the base plate 1, and anchor rods 103 are fixedly connected to both ends of the bottom of the horizontal plate 12 and one end of the bottom of the base plate 1. After the base plate 1 is placed on the ground, the anchor rods 103 will be inserted into the ground to stabilize the base plate 1.

[0038] A pedal 2 is rotatably connected to the top of one end of the seat plate 1. The pedal 2 is a foot pedal. A vertical rod 3 is fixedly connected to the top of the seat plate 1 near the other end. An upper C-shaped guide sleeve 4 is fixedly connected to the top of one side of the vertical rod 3. A sampling tube 5 is slidably connected inside the upper C-shaped guide sleeve 4. The sampling tube 5 and the upper C-shaped guide sleeve 4 are in clearance fit. The bottom of the sampling tube 5 is open and the top is fixedly connected to a vibration motor 6. The bottom opening of the sampling tube 5 is the sampling port. The vibration motor 6 shakes the sampling tube 5. One end of the pedal 2 is hinged to the top of the sampling tube 5 through a first elastic telescopic rod 107. When the pedal 2 is stepped down, the first elastic telescopic rod 107 will cause the opening of the sampling tube 5 to elastically squeeze the surface soil. The shaking sampling tube 5 will easily insert into the ground, and the surface soil sample will enter the sampling tube 5, realizing the control of soil extraction by inserting the sampling tube 5 into the ground.

[0039] An adjusting ring 8 is fitted on the outside of the sampling tube 5. The adjusting ring 8 is located above the upper C-shaped guide sleeve 4 and a locking screw 9 is screwed through its outer peripheral wall to control the axial sliding of the adjusting ring 8. Then, tightening the locking screw 9 can lock the adjusting ring 8. The function of the adjusting ring 8 is to control the depth of the sampling tube 5 into the ground surface, thereby controlling the sampling amount.

[0040] A bracket 7 is fixedly connected to the top of the pedal 2 near one end of the seat plate 1. The bracket 7 is hinged to the seat plate 1 via a second elastic telescopic rod 104. Specifically, a connecting seat 11 is provided on the top of the seat plate 1. The bracket 7 is T-shaped, and its two ends are hinged to the two ends of the connecting seat 11 via the second elastic telescopic rod 104. This second elastic telescopic rod 104 will push the pedal 2 in the opposite direction. After the pedal 2 is released, under the elastic force of the second elastic telescopic rod 104, combined with the vibration of the vibration motor 6, the sampling tube 5 can be stably detached from the ground surface. It should be noted that since the sampling tube 5 can detach quickly, the soil inside will not detach quickly due to vibration. At this time, a sampling dish is placed below the sampling tube 5, and then the vibration motor 6 is controlled to vibrate continuously. The sample in the sampling tube 5 will fall onto the sampling dish, completing the sampling of the surface soil.

[0041] The first elastic telescopic rod 107 and the second elastic telescopic rod 104 both adopt a telescopic structure consisting of a sleeve, a spring, and a connecting rod, with the spring providing tension and thrust.

[0042] The above sampling method and structure do not require the sampling personnel to exert force, which greatly reduces the sampling intensity, and the sampling volume is adjustable.

[0043] Example 2

[0044] Please see Figure 5 The difference from Embodiment 1 is that the connecting seat 11 is of type A and is slidably connected to the seat plate 1. An adjusting screw 111 is screwed through the top of the connecting seat 11. When the adjusting screw 111 is loosened, the connecting seat 11 can be adjusted to adjust its position on the seat plate 1. This setting can adjust the magnitude of the elastic thrust applied by the second elastic telescopic rod 104 to the pedal 2. When the soil hardness is different, it can increase the speed at which the sampling tube 5 leaves the ground surface and improve the sampling efficiency.

[0045] Example 3

[0046] Please see Figure 3 The difference from Embodiment 1 is that the bottom of the sampling tube 5 is fixedly connected to circumferentially evenly distributed piles 51, and the bottom of the upright 3 is rotatably connected to an arm plate 101. One end of the arm plate 101 is fixedly connected to a tray 102. After the sampling tube 5 carries the soil sample away from the soil, the tray 102 is rotated until it is below the sampling tube 5, and then the pedal 2 is stepped on a second time. At this time, the piles 51 will abut against the tray 102. Due to the impact, the soil removal speed in the sampling tube 5 will be increased, that is, the speed of separation between the soil and the sampling tube 5 will be increased. Furthermore, the other end of the seat plate 1 is fixedly connected to a lower C-shaped guide sleeve 105 located below the sampling tube 5. The top of the lower C-shaped guide sleeve 105 is flush with the lower end face of the tray 102, and the lower C-shaped guide sleeve 105 serves to support the tray 102.

[0047] Example 4

[0048] Please see Figure 3 and Figure 4 The difference from Example 3 is that the outer wall of the sampling tube 5 has a semi-circular notch 52 that connects to the inner cavity. The openings of the semi-circular notch 52, the upper C-shaped guide sleeve 4, and the lower C-shaped guide sleeve 105 face the same direction. Layered pieces 106 are inserted into the semi-circular notch 52. The semi-circular notches 52 are arranged at equal intervals relative to the axial direction of the sampling tube 5. That is to say, after sampling, the soil inside the sampling tube 5 reflects the soil conditions at different depths. At this time, layered pieces 106 are inserted into each semi-circular notch 52. After obtaining the bottom layer of soil in the sampling tube 5, the bottommost layered piece 106 is pulled out to obtain the next layer of soil. Soil samples at different depths can be obtained in this way, which has the advantage of obtaining soil samples at different depths. An operating rod 1061 is fixedly connected to the outer peripheral wall of the layered piece 106.

[0049] Working principle: Before sampling, place the seat plate 1 on the ground. Step on the seat plate 1 to insert the anchor rod 103 into the ground. Then step on the pedal 2. The pedal 2 swings down, and the first elastic telescopic rod 107 drives the mouth of the sampling tube 5 to contact the ground. At the same time, the first elastic telescopic rod 107 applies a downward elastic force to the sampling tube 5, and starts the vibration motor 6. The vibration motor 6 drives the sampling tube 5 to vibrate at high frequency. At this time, the sampling tube 5 will easily insert into the ground. When the adjusting ring 8 and the upper C-shaped guide sleeve 4 abut against each other, the sampling tube 5 stops descending, and the surface soil sample will enter the sampling tube 5.

[0050] Release pedal 2, and under the push of the second elastic telescopic rod 104, pedal 2 swings upward. At this time, the first elastic telescopic rod 107 will apply an upward elastic thrust to the sampling tube 5. Under the vibration of the vibration motor 6, the sampling tube 5 can quickly carry the soil sample away from the ground. Then, a sampling dish is placed below the sampling tube 5, and the soil sample in the sampling tube 5 will fall onto the dish, thus completing the sampling operation.

[0051] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A surface soil sampler with controllable sampling volume, characterized in that, The system includes a seat plate (1), with a pedal (2) rotatably connected to the top of one end of the seat plate (1). A vertical rod (3) is fixedly connected to the top of the seat plate (1) near the other end. An upper C-shaped guide sleeve (4) is fixedly connected to the top of one side of the vertical rod (3). A sampling tube (5) is slidably connected inside the upper C-shaped guide sleeve (4). The bottom of the sampling tube (5) is open and a vibration motor (6) is fixedly connected to its top. One end of the pedal (2) is hinged to the top of the sampling tube (5) via a first elastic telescopic rod (107). A bracket (7) is fixedly connected to the top of the pedal (2) near one end of the seat plate (1). The bracket (7) is hinged to the seat plate (1) via a second elastic telescopic rod (104). An adjusting ring (8) is sleeved on the outside of the sampling tube (5). The adjusting ring (8) is located above the upper C-shaped guide sleeve (4) and is adjustable. A locking screw (9) is screwed through the outer peripheral wall of the joint ring (8). A connecting seat (11) is provided on the top of the seat plate (1). The bracket (7) is T-shaped and its two ends of the crossbeam are respectively hinged to the two ends of the connecting seat (11) via the second elastic telescopic rod (104). The connecting seat (11) is Z-shaped and is slidably connected to the seat plate (1). An adjusting screw is screwed through the top of the connecting seat (11). A circumferentially evenly distributed pile column (51) is fixedly connected to the bottom of the sampling tube (5). An arm plate (101) is rotatably connected to the bottom of the upright (3). A tray (102) is fixedly connected to one end of the arm plate (101). A lower C-shaped guide sleeve (105) located below the sampling tube (5) is fixedly connected to the other end of the seat plate (1). The top of the lower C-shaped guide sleeve (105) is flush with the lower end face of the tray (102).

2. The surface soil sampler with controllable sampling volume according to claim 1, characterized in that, The outer wall of the sampling tube (5) is provided with a semi-circular notch (52) that connects to the inner cavity of the sampling tube (5). The openings of the semi-circular notch (52), the upper C-shaped guide sleeve (4), and the lower C-shaped guide sleeve (105) are oriented in the same direction. A layered piece (106) is inserted into the semi-circular notch (52). The semi-circular notches (52) are arranged at equal intervals relative to the axial direction of the sampling tube (5).

3. A surface soil sampler with controllable sampling volume according to claim 2, characterized in that, An operating rod (1061) is fixedly connected to the outer peripheral wall of the layered plate (106).

4. A surface soil sampler with controllable sampling volume according to claim 1, characterized in that, A horizontal plate (12) is fixedly connected to the bottom of the seat plate (1), and anchor rods (103) are fixedly connected to both ends of the bottom of the horizontal plate (12) and one end of the bottom of the seat plate (1).

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