CN216817672U - Demonstration device for water and soil loss experiments of middle school geography - Google Patents
Demonstration device for water and soil loss experiments of middle school geography Download PDFInfo
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- CN216817672U CN216817672U CN202220064035.1U CN202220064035U CN216817672U CN 216817672 U CN216817672 U CN 216817672U CN 202220064035 U CN202220064035 U CN 202220064035U CN 216817672 U CN216817672 U CN 216817672U
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Abstract
The application discloses a demonstration device for a water and soil loss experiment of middle school geography, which comprises a water inlet, a steady flow pond, a soil tank, a water outlet, an adjusting bracket, an adjusting rod, a bracket platform and a sample receiving cup; the rear end of the flow stabilization tank is provided with a water inlet, and a switch is arranged at the water inlet; the front end of the flow stabilizing pool is fixedly connected with the rear end of the soil tank, and the front end of the soil tank is provided with a water outlet; the bottom of the front end of the soil tank is rotatably connected to one side of the support platform; the other side of the bracket platform is fixedly provided with an adjusting bracket which is positioned at two sides of the soil tank; the adjusting rod is transversely lapped on the adjusting bracket; the bottom of the rear end of the soil tank is placed on the adjusting rod and used for adjusting the gradient of the soil tank by adjusting the position of the adjusting rod on the adjusting bracket; a sample receiving cup is arranged below the water outlet, and factors such as gradient, flow, soil condition, vegetation condition and the like need to be adjusted in the water and soil loss simulation experiment process, so that the quantitative influence of the influencing factors on the slope water and soil loss is convenient to explore.
Description
Technical Field
The application relates to the technical field of geographic experiment teaching aids, in particular to a demonstration device for water and soil loss experiments of middle school geography.
Background
General high school geography course criteria (revised in 2020, 2017 edition) were noted in the teaching recommendations to enhance geography practice. The high school geography teaching contents can more prominently understand geography phenomena, analyze geography causes and explore geography processes. Teaching methods based on teaching methods are difficult to help students understand and master the course and principle geographic knowledge. The middle school geography experiment, as an important form of geography practice activity, plays an irreplaceable role in the aspects of training the practical ability of students, innovating spirit, scientifically exploring consciousness and the like. The water and soil loss relates to the modeling of the surface morphology under the joint participation of factors such as terrain, vegetation, soil and the like, such as water running nutrient, wind nutrient and the like, and the landform characteristics formed by different parts and different action strengths are different. For such complicated, abstract and comprehensive geographic problems, the teaching mode of visual demonstration and manual practice is an effective way for breaking through the important difficulty of teaching and achieving the teaching target.
When a water and soil loss demonstration experiment is carried out, many middle school teachers have difficulties that experimental equipment is difficult to obtain, experimental conditions are not well controlled, the experimental period is long, the interaction effect of students is not good, and the like, so that the full play of the experimental value is restricted. The variables related to soil erosion include gradient, flow, surface vegetation conditions, and the like. In the middle school geography class, even if some teachers and students develop the simulation experiment, the considered factors are often incomplete, and the teacher or the students self-made one set of experiment equipment cannot meet the requirements of other similar variable experiments. The experiment equipment needs to be updated when one experiment condition is changed, the experiment cost and the early preparation time of the experiment are greatly increased, the enthusiasm of teachers and students is struck, and great difficulty and uncertainty are brought to the experiment development. In addition, the obtained experimental result is not favorable for the cultivation of scientific thinking of students due to different experimental devices, poor control of other variables, poor contrast and low credibility.
SUMMERY OF THE UTILITY MODEL
The application provides a demonstration device for water and soil loss experiments in middle school geography to solve the problems that the demonstration experiment device for water and soil loss in the prior art is poor in universality, poor in variable control effect and poor in experimental result contrast.
The technical scheme adopted by the application is as follows:
a demonstration device for water and soil loss experiments in middle school geography comprises a water inlet, a flow stabilization tank, a soil tank, a water outlet, an adjusting bracket, an adjusting rod, a bracket platform and a sample receiving cup;
the rear end of the steady flow pool is provided with the water inlet, and a switch is arranged at the water inlet;
the front end of the steady flow pool is fixedly connected with the rear end of the soil tank, and the front end of the soil tank is provided with the water outlet;
the bottom of the front end of the soil tank is rotatably connected to one side of the support platform;
the other side of the bracket table is fixedly provided with a plurality of adjusting brackets which are positioned at two sides of the soil tank;
the adjusting rod is transversely lapped on the adjusting bracket, and the adjusting bracket is provided with a plurality of limiting holes for transversely lapping the adjusting rod;
the bottom of the rear end of the soil tank is placed on the adjusting rod and used for adjusting the gradient of the soil tank by adjusting the position of the adjusting rod on the adjusting bracket;
the sample receiving cup is arranged below the water outlet.
Preferably, the steady flow pond is a square groove type, and the curling part at the front end of the steady flow pond is lapped at the rear end of the soil tank.
Preferably, a flow stabilizing plate is arranged in the middle of the flow stabilizing tank along the direction perpendicular to the water inlet direction.
Preferably, the flow stabilizing plate is a straight plate with the upper edge flush with the flow stabilizing pool and the lower edge higher than the bottom of the flow stabilizing pool.
Preferably, the front end of the steady flow pool is fixedly connected with the rear end of the soil trough through a screw, and the front end of the soil trough is fixedly connected with the water outlet through a screw.
Preferably, the lower part of the adjusting bracket is fixedly arranged on the bracket table through a screw.
Preferably, the adjusting bracket is provided with three limiting holes for transversely lapping the adjusting rod, and the limiting holes are used for adjusting the gradient of the soil tank so that the gradient of the soil tank changes between 0 and 30 degrees by taking 10 degrees as a step length.
Preferably, the bottom of the front end of the soil tank is rotatably connected to the support platform through a rotating shaft.
Preferably, the soil tank is a rectangular tank, and the water outlet is a horn tank with openings at the front end and the rear end.
The technical scheme of the application has the following beneficial effects:
the application has the characteristics of compact structure and good flexibility. On the middle school geography class, students can independently design and develop related exploration experiments by using the teaching aid, the building is simple, the movement is convenient, the experiment preparation time is shortened, the experiment difficulty is reduced, and meanwhile, the controllability of the experiment process and the scientificity and accuracy of the experiment results are guaranteed. By means of the teaching aid for developing demonstration experiments, students can visually observe water flow movement, soil particle carrying, deposition and other phenomena in the water and soil loss experiment process, quantitatively compare soil erosion degrees under different experiment conditions, arouse scientific exploration interests of the students, cultivate geographical practical power and fully exert values of nurturing people in geographical experiment teaching.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a demonstration apparatus for a water and soil loss experiment in middle school geography according to the application;
FIG. 2 is an exploded view of a demonstration apparatus for soil erosion and water loss experiments in middle school geography according to the present application;
FIG. 3 is a cross-sectional view of the demonstration apparatus for soil erosion and water loss experiments in middle school geography according to the application at an operating state of 0 degree;
FIG. 4 is a 30-degree working state cross-sectional view of a demonstration device for a water and soil loss experiment in middle school geography according to the application;
illustration of the drawings:
the device comprises a water inlet 1, a flow stabilizing pool 2, a flow stabilizing plate 21, a soil tank 3, a water outlet 4, a rotating shaft 5, an adjusting bracket 6, an adjusting rod 7, a bracket platform 8 and a sample receiving cup 9.
Detailed Description
Fig. 1 is a schematic structural view of a demonstration apparatus for water and soil loss experiments in middle school geography.
The application provides a demonstration device for a water and soil loss experiment of middle school geography, which comprises a water inlet 1, a flow stabilization tank 2, a soil tank 3, a water outlet 4, an adjusting bracket 6, an adjusting rod 7, a bracket platform 8 and a sample receiving cup 9;
the water inlet 1 is arranged at the rear end of the flow stabilization tank 2, and a switch is arranged at the water inlet 1;
the front end of the flow stabilizing pool 2 is fixedly connected with the rear end of the soil tank 3, and the front end of the soil tank 3 is provided with the water outlet 4;
the bottom of the front end of the soil tank 3 is rotatably connected to one side of the support table 8;
the other side of the support table 8 is fixedly provided with a plurality of adjusting supports 6, and the adjusting supports 6 are positioned at two sides of the soil tank 3;
the adjusting rod 7 is transversely lapped on the adjusting bracket 6, and a plurality of limiting holes for transversely lapping the adjusting rod 7 are formed in the adjusting bracket 6;
the bottom of the rear end of the soil trough 3 is placed on the adjusting rod 7 and is used for adjusting the gradient of the soil trough 3 by adjusting the position of the adjusting rod 7 on the adjusting bracket 6;
the sample receiving cup 9 is arranged below the water outlet 4.
Be provided with the scale mark on connecing appearance cup 9, conveniently observe and record soil erosion and water loss data.
As shown in fig. 2, the flow stabilization tank 2 is a square tank type, and a crimping part at the front end of the flow stabilization tank 2 is lapped on the rear end of the soil tank 3.
As shown in fig. 3, a flow stabilizing plate 21 is arranged in the middle of the flow stabilizing tank 2 along the direction perpendicular to the water inlet direction.
As shown in fig. 4, the flow stabilizer 21 is a straight plate with an upper edge flush with the flow stabilization tank 2 and a lower edge higher than the bottom of the flow stabilization tank 2. When the switch is turned on, water flows into the flow stabilizing plate 21 from the water inlet 1, and slowly flows into the soil tank 3 after being buffered by the flow stabilizing plate 21, so that the environment of erosion of soil by water under natural conditions is more approximate.
Preferably, the soil tank 3 is a rectangular tank, and the water outlet 4 is a horn tank with openings at the front end and the rear end.
Preferably, two sides of the front end of the flow stabilization tank 2 are fixedly connected with two sides of the rear end of the soil trough 3 through screws, and two sides of the front end of the soil trough 3 are fixedly connected with two sides of the water outlet 4 through screws.
Preferably, the lower part of the adjusting bracket 6 is fixedly installed on the bracket table 8 through a screw.
Preferably, the adjusting bracket 6 is provided with three limiting holes for transversely lapping the adjusting rod 7 and adjusting the gradient of the soil trough 3 to change the gradient of the soil trough between 0 and 30 degrees by taking 10 degrees as a step length.
Preferably, the bottom of the front end of the soil trough 3 is rotatably connected to the support stand 8 through a rotating shaft 5.
Optionally, the structure of the rotating shaft 5 is similar to a hinge and includes two rotating shafts which are sleeved together and can rotate relatively, the soil trough 3 and the support platform 8 are respectively and fixedly connected with the two rotating shafts, so that the bottom of the front end of the soil trough 3 is rotatably connected to the support platform 8.
As shown in fig. 3 and 4, during the soil box washing experiment, the slope of the soil box 3 is adjusted by adjusting the position of the adjusting rod 7 on the adjusting bracket 6, so that the slope of the soil box 3 changes at 0-30 degrees by taking 10 degrees as a step length in the experiment process. The flow of the water inlet 1 is adjusted through the switch, so that the water and soil loss degree under different running water conditions can be compared. In addition, the experimental device can also use artificial simulated precipitation as an experimental water source, so that the experimental device is multipurpose. The factors that soil box district can change are many, and different earth grooves can set up different earth's surface conditions, form the contrast. For example, different soil types, different vegetation coverage, different soil water contents and the like are arranged in the soil tank 3, and when other factors are the same, the influence of the single factor on water and soil loss can be revealed. This application presentation device for middle school's geography soil erosion and water loss experiment can design and develop different quantitative experiments through adjusting conditions such as slope, flow, soil box earth's surface soil or vegetation situation, demonstrates the soil erosion and water loss process, reveals the influence of a certain factor to soil erosion and water loss.
The application has the characteristics of compact structure, good flexibility and low cost. On the middle school geography class, students can independently design and develop related exploration experiments by using the teaching aid, the building is simple, the movement is convenient, the experiment preparation time is shortened, the experiment difficulty is reduced, and meanwhile, the controllability of the experiment process and the scientificity and accuracy of the experiment results are guaranteed. By means of the teaching aid for developing demonstration experiments, students can visually observe phenomena such as water flow movement, soil particle carrying and deposition in the water and soil loss experiment process, quantitatively compare soil erosion degrees under different experiment conditions, arouse scientific exploration interests of the students, cultivate geographical practical ability and fully exert values of nurturing people in geographical experiment teaching.
The embodiments provided in the present application are only a few examples of the general concept of the present application, and do not limit the scope of the present application. Any other embodiments extended according to the scheme of the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.
Claims (9)
1. A demonstration device for water and soil loss experiments in middle school geography is characterized by comprising a water inlet (1), a flow stabilization tank (2), a soil tank (3), a water outlet (4), an adjusting bracket (6), an adjusting rod (7), a bracket platform (8) and a sample receiving cup (9);
the water inlet (1) is formed in the rear end of the flow stabilizing pool (2), and a switch is arranged at the water inlet (1);
the front end of the steady flow pool (2) is fixedly connected with the rear end of the soil tank (3), and the front end of the soil tank (3) is provided with the water outlet (4);
the bottom of the front end of the soil tank (3) is rotatably connected to one side of the support table (8);
the other side of the support table (8) is fixedly provided with a plurality of adjusting supports (6), and the adjusting supports (6) are positioned on two sides of the soil tank (3);
the adjusting rod (7) is transversely lapped on the adjusting bracket (6), and a plurality of limiting holes for transversely lapping the adjusting rod (7) are formed in the adjusting bracket (6);
the bottom of the rear end of the soil tank (3) is placed on the adjusting rod (7) and used for adjusting the gradient of the soil tank (3) by adjusting the position of the adjusting rod (7) on the adjusting bracket (6);
the sample receiving cup (9) is arranged below the water outlet (4).
2. The demonstration device for the water and soil loss experiment in the middle school geography according to claim 1, wherein the steady flow tank (2) is of a square groove type, and a curled edge part at the front end of the steady flow tank (2) is overlapped at the rear end of the soil groove (3).
3. The demonstration device for the water and soil loss experiment in middle school geography according to claim 2, characterized in that a flow stabilizing plate (21) is arranged in the middle of the flow stabilizing tank (2) and perpendicular to the water inlet direction.
4. The demonstration device for water and soil loss experiments in middle school geography according to claim 3, wherein the flow stabilizing plate (21) is a straight plate with the upper edge flush with the flow stabilizing pool (2) and the lower edge higher than the bottom of the flow stabilizing pool (2).
5. The demonstration device for the water and soil loss experiment in middle school geography according to claim 1, wherein the front end of the steady flow tank (2) is fixedly connected with the rear end of the soil trough (3) through a screw, and the front end of the soil trough (3) is fixedly connected with the water outlet (4) through a screw.
6. The demonstration device for water and soil loss experiments in middle school geography according to claim 1, wherein the lower portion of the adjusting bracket (6) is fixedly installed on the bracket platform (8) through screws.
7. The demonstration device for the water and soil loss experiment in middle school geography according to claim 1, wherein the adjusting bracket (6) is provided with three limiting holes for transversely lapping the adjusting rod (7) for adjusting the gradient of the soil tank (3) to change between 0 and 30 degrees by taking 10 degrees as a step length.
8. The demonstration device for the water and soil loss experiment in middle school geography according to claim 1, wherein the bottom of the front end of the soil tank (3) is rotatably connected to the support platform (8) through a rotating shaft (5).
9. The demonstration device for the water and soil loss experiment in the middle school geography according to claim 1, wherein the soil tank (3) is a rectangular tank shape, and the water outlet (4) is a horn tank shape with openings at the front end and the rear end.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220013457 | 2022-01-05 | ||
| CN2022200134576 | 2022-01-05 |
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| Publication Number | Publication Date |
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| CN216817672U true CN216817672U (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220064035.1U Active CN216817672U (en) | 2022-01-05 | 2022-01-11 | Demonstration device for water and soil loss experiments of middle school geography |
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