Adjustable soil surface sampling device

Abstract

The utility model relates to an adjustable soil surface sampling device which comprises a sampling part, and the sampling part comprises a cover body with an opening in the bottom, a sealing plate connected in the cover body in a sliding manner and a connecting rod connected to the top of the sealing plate; the rod part is connected to the top of the sampling part, the rod part comprises a supporting rod, a sliding way formed along the track of the supporting rod, a sliding block connected into the sliding way in a sliding mode and a limiting pipe rotationally connected to the outside of the supporting rod, the supporting rod is connected to the top end of the cover body, and the other end of the connecting rod penetrates through the cover body and is connected with the sliding block. The sealing plate is matched with the cover body to form a containing cavity with an opening in the bottom, the sealing plate is driven by external force to slide in the height direction of the cover body so as to adjust the depth of the containing cavity, and the sealing plate is limited by the limiting pipe and has the maximum height, namely, the sampling depth reaches the maximum at the moment so as to achieve depth setting.

Description

Technical Field

[0001] The utility model belongs to the technical field of soil sampling, in particular to an adjustable soil surface sampling device. Background Art

[0002] Soil surface sampling generally refers to soil sampling technology within a sampling depth of 20 cm. Due to the thin soil layer and shallow depth, it is mostly manual and pedal-operated.

[0003] For example, the patent document with application number "201920771955.5" and name "Soil Sampler" uses a foot pedal to cooperate with manpower to penetrate deep into the soil.

[0004] However, the surface depth still has a certain depth range, namely 0-20 cm. The existing sampling device cannot achieve fixed depth, which is not conducive to the sampling results. Utility Model Content

[0005] The utility model addresses the problem that the sampling device in the prior art cannot achieve a fixed depth, which is not conducive to the sampling results. The utility model provides an adjustable soil surface sampling device. The specific technical solution is as follows:

[0006] Adjustable soil surface sampling device, comprising:

[0007] The sampling part includes a cover body with an opening at the bottom, a sealing plate slidably connected to the cover body, and a connecting rod connected to the top of the sealing plate;

[0008] And a rod portion connected to the top of the sampling portion, the rod portion includes a support rod, a slideway opened along the trajectory of the support rod, a slider slidably connected to the slideway, and a limiting tube rotatably connected to the outside of the support rod, the support rod is connected to the top of the cover body, and the other end of the connecting rod passes through the cover body and is connected to the slider.

[0009] As a further technical solution of the present invention, the support rod has a cavity connected to the inside of the cover body, the support rod is coaxially arranged with the cover body, and the connecting rod is coaxially inserted into the cavity of the support rod.

[0010] As a further technical solution of the present invention, an extension rod is radially extended from one end of the sliding block.

[0011] As a further technical solution of the present invention, a spring is connected between the sealing plate and the top wall of the cover body. The spring is in a stretched state and pulls the sealing plate to overcome gravity.

[0012] As a further technical solution of the present invention, a ring sleeve is connected to the outside of the cover, and a footrest portion is radially extended from the outside of the ring sleeve.

[0013] As a further technical solution of the present invention, the top end of the rod is connected to a grip.

[0014] The beneficial effects of the utility model are as follows:

[0015] (1) In the present application, the sealing plate cooperates with the cover body to form a cavity with an open bottom. The sealing plate is driven by an external force to slide along the height direction of the cover body to adjust the depth of the cavity. However, due to the restriction of the restriction tube, the sealing plate has a maximum height, that is, the sampling depth reaches the maximum at this time to achieve a fixed depth.

[0016] (2) In the present application, an internal thread is provided on the inner wall of the limiting tube, and an external thread groove corresponding to the internal thread is provided on the outer wall of the support rod. When the limiting tube rotates, it moves up and down along the trajectory of the support rod to adjust the height of the limiting tube, thereby adjusting the maximum height of the slider and the sampling depth. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 An adjustable soil surface sampling device is shown;

[0018] Figure 2 Shows a schematic structural diagram of the sampling portion and the rod portion;

[0019] Figure 3 A schematic structural diagram of the ring sleeve and the pedal portion is shown.

[0020] Legend:

[0021] 100, sampling part; 110, cover; 120, sealing plate; 130, spring; 140, connecting rod; 150, ring; 160, pedal part; 200, rod part; 210, support rod; 220, slide; 230, slider; 231, extension rod; 240, limiting tube; 300, grip rod. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0023] In view of the fact that the sampling device in the prior art cannot achieve a fixed depth, which is not conducive to the sampling results, the present application sets a movable sealing plate 120 in the cover body 110. The sealing plate 120 can cooperate with the cover body 110 to form a sampling cavity with an open bottom. When the sealing plate 120 is adjusted up and down, the volume of the sampling cavity can be changed to adjust the sampling depth.

[0024] Figure 1 An adjustable soil surface sampling device is shown; Figure 1In the adjustable soil surface sampling device, the sampling part 100, the rod part 200 and the grip 300 are connected in sequence from bottom to top; during use, the sampling part 100 is placed in a specified position, and the grip 300 is at the height of the chest. The grip 300 is held and pressed down to force the sampling part 100 to be inserted into the soil and reach the specified depth. The grip 300 is lifted to obtain the soil sample in the sampling part 100.

[0025] Figure 2 Schematic diagram of the structure of the sampling portion 100 and the rod portion 200 is shown; Figure 2In the embodiment, the sampling portion 100 includes a cover body 110 with an opening at the bottom, a sealing plate 120 slidably connected to the inside of the cover body 110, and a connecting rod 140 connected to the top of the sealing plate 120; the sealing plate 120 cooperates with the cover body 110 to form a cavity with an opening at the bottom, and the sealing plate 120 is driven by an external force to slide along the height direction of the cover body 110 to adjust the depth of the cavity; the rod portion 200 includes a support rod 210, a slideway 220 opened along the track of the support rod 210, a slider 230 slidably connected to the inside of the slideway 220, and a limiting tube 240 rotatably connected to the outside of the support rod 210, the support rod 210 is connected to the top of the cover body 110, and the other end of the connecting rod 140 passes through the cover body 110 and is connected to the slider 230. connected; under the influence of gravity, the sealing plate 120 normally falls to the lowest position, and when inserted into the soil for sampling, the soil will push the sealing plate 120, the connecting rod 140 and the slider 230 to rise, and the slider 230 slides along the track of the slide 220. When the slider 230 hits the limiting tube 240, the limiting tube 240 limits the slider 230. At this time, the sealing plate 120 reaches the maximum height, that is, the sampling depth reaches the maximum to achieve a fixed depth. Since the limiting tube 240 and the support rod 210 are rotatably connected, that is, the inner wall of the limiting tube 240 is provided with an internal thread, and the outer wall of the support rod 210 is provided with an external thread groove corresponding to the internal thread, when the limiting tube 240 rotates, it will follow the track of the support rod 210 The support rod 210 is provided with a cavity connected to the interior of the cover body 110, and the support rod 210 is coaxially arranged with the cover body 110, and the connecting rod 140 is coaxially inserted into the cavity of the support rod 210; through the cavity setting, on the one hand, the connecting rod 140 can be hidden in the cavity without affecting the overall appearance of the device; on the other hand, the coaxial setting of the support rod 210 and the cover body 110 is conducive to inserting the device into the soil when it is pressed down, and avoids the cover body 110 from tilting when inserted into the soil; in this embodiment, the slide 220 and the slider 230 correspond to each other and are each provided with two groups. In some other embodiments, The slide 220 and the slider 230 only need to correspond to each other, and there is no limit to the specific number; an extension rod 231 extends radially at one end of the slider 230; when the cover body 110 is lifted off the ground after sampling, the extension rod 231 is stepped on and pressed down, thereby driving the connecting rod 140 and the sealing plate 120 to move downward and push the soil out of the cover body 110, so as to facilitate the removal of the sample in the cover body 110; a spring 130 is connected between the sealing plate 120 and the top wall of the cover body 110, and the spring 130 is in a stretched state and pulls the sealing plate 120 to overcome gravity; that is, under normal circumstances, the sealing plate 120 is pulled by the spring 130 to overcome the influence of gravity and can be suspended in the cover body 110, preventing the sealing plate 120 from detaching from the cover body 110 under normal circumstances.

[0026] Figure 3 A schematic structural diagram of the ring sleeve 150 and the pedal portion 160 is shown; Figure 3In the embodiment, the cover body 110 is connected to the outside of the ring sleeve 150, and a pedal portion 160 is radially extended from the outside of the ring sleeve 150; by stepping on the pedal portion 160, the cover body 110 can be driven to move downward, which is conducive to piercing the cover body 110 into the soil.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. Adjustable soil surface sampling device, characterized in that: include: A sampling portion (100), comprising a cover body (110) with an opening at the bottom, a sealing plate (120) slidably connected to the cover body (110), and a connecting rod (140) connected to the top of the sealing plate (120); And a rod portion (200) connected to the top of the sampling portion (100), the rod portion (200) includes a support rod (210), a slideway (220) opened along the track of the support rod (210), a slider (230) slidably connected to the slideway (220), and a limiting tube (240) rotatably connected to the outside of the support rod (210), the support rod (210) is connected to the top of the cover body (110), and the other end of the connecting rod (140) passes through the cover body (110) and is connected to the slider (230).

2. The adjustable soil surface sampling device according to claim 1, characterized in that: The support rod (210) has a cavity in communication with the interior of the cover body (110), the support rod (210) and the cover body (110) are coaxially arranged, and the connecting rod (140) is coaxially inserted into the cavity of the support rod (210).

3. The adjustable soil surface sampling device according to claim 2, characterized in that: An extension rod (231) is radially extended from one end of the slider (230).

4. The adjustable soil surface sampling device according to claim 3, characterized in that: A spring (130) is connected between the sealing plate (120) and the top wall of the cover body (110), and the spring (130) is in a stretched state and pulls the sealing plate (120) to overcome gravity.

5. The adjustable soil surface sampling device according to claim 3, characterized in that: The cover body (110) is externally connected to a ring sleeve (150), and a footrest portion (160) is radially extended from the outside of the ring sleeve (150).

6. The adjustable soil surface sampling device according to claim 3, characterized in that: The top end of the rod portion (200) is connected to a handle (300).

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