CN-122017201-A - Portable runoff plot for field experiment with variable size

CN122017201ACN 122017201 ACN122017201 ACN 122017201ACN-122017201-A

Abstract

The invention discloses a portable runoff plot with a variable size for field experiments, which comprises two telescopic coamings, wherein a top coamings and a bottom coamings are detachably connected between the two telescopic coamings, a drain pipe is communicated with the bottom coamings, a collecting assembly comprises a collecting barrel, the collecting barrel is detachably connected with an upper cover and a bottom sealing piece, the upper cover is communicated with the drain pipe through a hose, a plurality of drainage mechanisms are communicated with the bottom sealing piece, the bottom sealing piece is fixedly connected to a support, a driving mechanism is arranged at the bottom of the support, a plurality of bending stirring rods are detachably connected to the driving mechanism, a breaking assembly comprises a separator and a cutter, the separator is used for dividing the collecting barrel into a plurality of equal-division spaces, and the cutter is used for cutting the bottom sealing piece. The device not only can realize the adjustment of the area of the runoff plot, but also can divide the sample into a plurality of parts more uniformly, and is more convenient in sampling.

Inventors

YANG BO
LIN CHENGQING
LI XIANG
ZHANG YONGKUN
LI RUNJIE
FANG NUFANG
ZHU WENBIN
LIU DEJUN
Wang Gaini
ZHANG HAILONG
SHI CHAOYANG

Assignees

青海大学

Dates

Publication Date: 20260512
Application Date: 20260305

Claims (10)

1. A portable variable-size runoff plot for field experiments, comprising: the two telescopic coamings (1) are detachably connected with a top coamings (2) and a bottom coamings (3) between the two telescopic coamings (1), and the bottom coamings (3) are communicated with a drain pipe (4); The collecting assembly comprises a collecting barrel (5), wherein the collecting barrel (5) is detachably connected with an upper cover (6) and a bottom sealing piece, the upper cover (6) is communicated with the drain pipe (4) through a hose (7), a plurality of drainage mechanisms are communicated with the bottom sealing piece, the bottom sealing piece is fixedly connected to a support (8), a driving mechanism is arranged at the bottom of the support (8), and a plurality of bending stirring rods (25) are detachably connected to the driving mechanism; A breaking assembly comprising a divider for dividing the cartridge (5) into a number of equally divided spaces and a cutter for cutting the bottom seal.
2. The runoff plot for field experiments with the portable variable size according to claim 1, wherein the separator comprises an inner cylinder (9), a plurality of partition plates (10) are fixedly connected in the inner cylinder (9), round tubes (11) are fixedly connected on the partition plates (10), and the outer diameter size of the inner cylinder (9) of the round tubes (11) is smaller than the inner diameter size of the collecting cylinder (5).
3. The portable runoff plot for field experiments of variable size according to claim 2, wherein the cutter comprises a handheld rod (12), a plurality of first connecting rods are fixedly connected to the handheld rod (12), and arc-shaped cutters (13) are fixedly connected to the first connecting rods.
4. The runoff plot for portable and variable-size field experiments of claim 3, wherein the bottom sealing member comprises a bottom cover (14), a plurality of first through holes (15) are formed in the bottom cover (14), the bottom cover (14) is detachably connected with the collecting cylinder (5), threaded holes are formed in the bottom cover (14), support columns (16) are connected to the threaded holes in a threaded mode, pressing plates (17) are fixedly connected to the support columns (16), rubber films (18) are paved in the bottom cover (14), second through holes are formed in the rubber films (18), and the support columns (16) penetrate through the second through holes.
5. The runoff plot for field experiments with the portable variable size according to claim 4, wherein a plurality of guide grooves (19) are formed in the outer edge of the support column (16), a plurality of guide strips (20) are fixedly connected in the round tube (11), the guide strips (20) are matched with the guide grooves (19), and a pressing plate (39) is detachably connected to the support column (16).
6. The runoff plot for the portable field experiment with the variable size according to claim 4, wherein the driving mechanism comprises a base (21), a motor (22) is fixedly connected to the base (21), a groove is formed in the base (21), a rotating shaft (23) is connected to the groove in a rotating mode, a first inserting hole is formed in the rotating shaft (23), a rectangular inserting rod (24) is fixedly connected to the support (8), the rectangular inserting rod (24) is matched with the first inserting hole, the motor (22) is in transmission connection with the rotating shaft (23), a plurality of second inserting holes are formed in the base (21), the second inserting holes are detachably connected with a bending stirring rod (25), the bending stirring rod is matched with the second inserting holes, a switch (26) is arranged on the base (21), and the motor (22) is electrically connected with the switch (26).
7. The portable runoff plot for field experiments of variable size according to claim 6, wherein a first gear (27) is fixedly connected to a driving shaft of the motor (22), a toothed ring (28) is fixedly connected to the rotating shaft (23), the first gear (27) is meshed with the toothed ring (28), and the rotating shaft (23) is rotatably connected in the groove through a bearing.
8. The runoff plot for field experiments with the portable variable size according to claim 1, wherein the telescopic coaming (1) comprises an outer sleeve plate (29) and an inner inserting plate (30), a first inserting groove (31) is formed in the outer sleeve plate (29), a flexible brace (32) is fixedly connected in the first inserting groove (31), the inner inserting plate (30) is inserted into the first inserting groove (31), the outer sleeve plate (29) and the top coaming (2) are detachably connected through a connecting piece (33), a second inserting groove and a third inserting groove are formed in the connecting piece (33), the outer sleeve plate (29) is matched with the second inserting groove, a top coaming (2) is matched with the third inserting groove, a fourth inserting groove is formed in the bottom coaming (3), and the inner inserting plate (30) is matched with the fourth inserting groove.
9. The portable runoff plot for field experiments of variable size according to claim 6, wherein the bracket (8) comprises a plurality of second connecting rods (34) and a supporting plate (36), wherein the second connecting rods (34) are fixedly connected to the supporting plate (36), the top ends of the second connecting rods (34) are fixedly connected with the bottom cover (14), and the rectangular inserting rods (24) are fixedly connected to the supporting plate (36).
10. The portable runoff plot for field experiments of variable size according to claim 4, wherein the draining mechanism comprises a funnel (37), the funnel (37) is fixedly connected to the bottom cover (14), the funnel (37) is arranged corresponding to the first through hole (15), a draining pipe (38) is communicated with the funnel (37), and a valve (35) is arranged on the draining pipe (38).

Description

Portable runoff plot for field experiment with variable size Technical Field The invention relates to the technical field of soil and water conservation experiments, in particular to a portable runoff plot for field experiments with variable sizes. Background In the fields of soil and water conservation, ecological restoration and agricultural non-point source pollution research, a runoff plot is an important experimental device for carrying out monitoring and simulation of a field rainfall-runoff-sediment process. Conventional runoff plots are mostly of a fixed structure, usually permanently constructed in the field from concrete or metal materials, with fixed area, gradient and boundary conditions. Although the device can provide stable observation data, the device has the limitations of long construction period, high cost, immobility, difficulty in adapting to complex terrains and the like, and severely restricts the application of the device in multi-region and multi-scale comparison tests. In recent years, with the aggravation of climate change and the deep research of the influence of human activities on the surface process, scientific researchers have increasingly stringent demands for a field experiment platform which is flexible, efficient and repeatable. At present, although there is a device of modularized runoff plot on the market, there is still a defect in practical application, firstly, the plot coaming size is usually fixed, can not be adjusted, and is inconvenient to use, secondly, the rainwater that collects is inconvenient when taking a sample, and silt is easy to sink, and the sediment content deviation in the rainwater is easy to cause in the sampling. Therefore, a portable runoff plot with variable size for field experiments is provided to solve the problems. Disclosure of Invention The invention aims to provide a portable runoff plot for field experiments with variable sizes, so as to solve the problems in the prior art, and the size of a surrounding plate is conveniently adjusted during use, so that the area of the plot is conveniently adjusted, and meanwhile, the uniformity of the sediment content in rainwater during sampling is improved, and the accuracy of experimental data is improved. In order to achieve the purpose, the invention provides the following scheme that the portable runoff plot for the field experiment with the variable size comprises the following steps: The two telescopic coamings are detachably connected with a top coaming and a bottom coaming, and the bottom coaming is communicated with a drain pipe; The collecting assembly comprises a collecting barrel, an upper cover and a bottom sealing piece are detachably connected with the collecting barrel, the upper cover is communicated with the drain pipe through a hose, a plurality of drainage mechanisms are communicated with the bottom sealing piece, the bottom sealing piece is fixedly connected to a support, a driving mechanism is arranged at the bottom of the support, and a plurality of bending stirring rods are detachably connected to the driving mechanism; A breaking assembly comprising a divider for dividing the collection canister into a plurality of equal divided spaces and a cutter for cutting the bottom seal. Preferably, the separator comprises an inner cylinder, a plurality of partition plates are fixedly connected in the inner cylinder, round pipes are fixedly connected on the partition plates, and the outer diameter of the inner cylinder of each round pipe is smaller than the inner diameter of each collecting cylinder. Preferably, the cutter comprises a handheld rod, a plurality of first connecting rods are fixedly connected to the handheld rod, and arc-shaped cutters are fixedly connected to the first connecting rods. Preferably, the bottom sealing member comprises a bottom cover, a plurality of first through holes are formed in the bottom cover, the bottom cover is detachably connected with the collecting cylinder, threaded holes are formed in the bottom cover, a support is connected to the threaded holes in a threaded mode, a pressing plate is fixedly connected to the support, a rubber film is paved in the bottom cover, a second through hole is formed in the rubber film, and the support penetrates through the second through hole. Preferably, a plurality of guide grooves are formed in the outer edge of the support column, a plurality of guide strips are fixedly connected in the circular tube, the guide strips are matched with the guide grooves, and the support column is detachably connected with a pressing plate. Preferably, the driving mechanism comprises a base, a motor is fixedly connected to the base, a groove is formed in the base, a rotating shaft is rotationally connected to the groove, a first jack is formed in the rotating shaft, a rectangular inserting rod is fixedly connected to the support, the rectangular inserting rod is matched with the first jack, the motor is in transmission connection w