Underground water level test control device

Abstract

The utility model relates to the technical field of underground water level control, in particular to an underground water level test control device which comprises a bottom plate, a test barrel, a partition plate, a barrel body, a movable plate, a floating ball, a contact block and a point contact switch. According to the device, the height of the underground water level can be accurately controlled, and the height of the point contact switch is adjusted through the movable plate, so that the height of the underground water level can be adjusted, different underground water level environments are provided for the same plant, and a growth condition comparison test of the planted plant is carried out; a plurality of partition plates are uniformly distributed and vertically inserted between a test barrel and a barrel body, the space between the test barrel and the barrel body is uniformly divided into a plurality of relatively independent areas, and different varieties of plants are planted in each area, so that the same underground water environment is provided for different plants; and the growth condition contrast test of the planted plants is carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of groundwater level control, and particularly relates to a groundwater level test control device. Background Technique

[0002] The formation of groundwater is due to the fact that the soil layer near the ground is relatively loose with large pores, and rainwater, snowmelt, water vapor, etc. on the ground will seep down along the pores. Among them, the most water seeps through sandy soil. If there is an impermeable rock layer blocking the way of water, or there is a fault under the earth's surface, or there are karst caves, the water will gather together to form a groundwater layer. Groundwater mainly comes from the infiltration recharge of atmospheric precipitation and surface water.

[0003] In recent years, with the intensification of climate change and human activities, groundwater has an important impact on aspects such as the ecological environment, agricultural production, industrial production, and human life. Since different groundwater levels will affect the growth and development of different plants, in order to understand the impact of groundwater levels on plant growth, it is necessary to adjust and control the groundwater level. Therefore, there is an urgent need for a groundwater level test control device to solve the above problems. Content of the Utility Model

[0004] To solve the above problems, the utility model proposes a groundwater level test control device to solve the problems mentioned above.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is a groundwater level test control device, including a bottom plate, a test barrel, a cylinder, a movable plate, a floating ball, a contact block, and a touch switch. The test barrel is detachably arranged at the upper end of the bottom plate. The cylinder is fixedly arranged at the central position inside the test barrel. First through holes are evenly distributed on the circumferential side wall of the cylinder. The floating ball is arranged inside the cylinder. A connecting rod is connected to the circumferential outer wall of the floating ball. The contact block is arranged at one end of the connecting rod;

[0006] The movable plate is arranged above the test barrel through four telescopic rods arranged on the upper surface of the bottom plate. The movable plate is provided with a circular second through hole, and the position of the second through hole corresponds to the position of the cylinder. The touch switch is installed directly above the second through hole through a detachable bracket. The contact block can pass through the second through hole to contact the touch switch;

[0007] A plurality of spacer plates are vertically inserted between the test barrel and the cylinder at equal intervals. The spacer plates evenly divide the space between the test barrel and the cylinder into a number of relatively independent regions.

[0008] Further preferably, the structure of the cylinder is cylindrical, and the cylinder is vertically arranged inside the test barrel.

[0009] Further preferably, an annular water supply pipe is provided on the lower surface of the movable plate directly above the test barrel, and drain holes are evenly formed at the bottom of the water supply pipe.

[0010] Further preferably, a water tank is provided on one side of the test barrel. An inlet pipe and a drain pipe are respectively provided on the water tank. The water tank is connected to an external water supply system through the inlet pipe, the drain pipe is connected to the water supply pipe, a water pump and a control valve are provided on the drain pipe, and the water pump and the control valve are electrically connected to a touch switch.

[0011] Further preferably, a fixing plate is detachably installed in the second through hole. A third through hole is formed in the center of the fixing plate, and one end of the connecting rod passes through the third through hole to be connected to the contact block.

[0012] Further preferably, the telescopic rod is an electric telescopic rod.

[0013] Further preferably, the number of the partition plates can be selected according to test requirements.

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

[0015] Through this device, the height of the groundwater level can be accurately controlled, and the height of the touch switch can be adjusted by the movable plate, so that the height of the groundwater level can be adjusted, and further, different groundwater level environments can be provided for the same plant to conduct a comparative test on the growth conditions of the planted plants;

[0016] By vertically inserting a plurality of partition plates evenly between the test barrel and the cylinder body, the space between the test barrel and the cylinder body is evenly divided into a plurality of relatively independent regions, and different varieties of plants are planted in each region, so as to provide the same groundwater environment for different plants and conduct a comparative test on the growth conditions of the planted plants. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the internal structure of the test barrel of the present utility model;

[0019] Figure 3 is a schematic perspective view of a part of the structure of the present utility model;

[0020] Figure 4 is a schematic diagram of the structure of the movable plate of the present utility model;

[0021] Figure 5 is a schematic diagram of the positions of the test barrel, the cylinder body and the partition plates of the present utility model;

[0022] Figure 6This is a schematic structural diagram of the spacer of the present utility model.

[0023] The reference numerals include:

[0024] 1 - bottom plate, 2 - test barrel, 21 - spacer, 3 - cylinder, 31 - first through hole, 4 - telescopic rod, 5 - movable plate, 51 - second through hole, 52 - mounting plate, 521 - third through hole, 6 - floating ball, 61 - connecting rod, 62 - contact block, 7 - touch switch, 71 - bracket, 8 - water supply pipe, 9 - water tank, 91 - water inlet pipe, 92 - drain pipe, 93 - water pump, 94 - control valve. Specific embodiments

[0025] To make the purpose, technical solution and advantages of the present technical solution clearer and more understandable, the present technical solution will be further described in detail below in conjunction with specific embodiments. It should be understood that these descriptions are exemplary and not intended to limit the scope of the present technical solution.

[0026] Embodiment 1

[0027] Please refer to Figures 1 to 4 As shown, in the embodiment of the present utility model, a groundwater level test control device includes a bottom plate 1. A test barrel 2 is detachably connected to the central position of the upper surface of the bottom plate 1. A cylindrical cylinder 3 is vertically provided at the central position inside the test barrel 2. The bottom of the cylinder 3 is fixedly connected to the bottom wall of the test barrel 2. A plurality of first through holes 31 are evenly distributed on the circumferential side wall of the cylinder 3. A floating ball 6 is provided inside the cylinder 3. A connecting rod 61 is connected to the circumferential outer wall of the floating ball 6. One end of the connecting rod 61 is fixedly connected with a contact block 62. A movable plate 5 is provided above the test barrel 2. The movable plate 5 is arranged above the bottom plate 1 and can move up and down through four telescopic rods 4 provided on the upper surface of the bottom plate 1. A circular second through hole 51 is provided on the movable plate 5. The position of the second through hole 51 corresponds to the position of the cylinder 3, and the diameter of the second through hole 51 is equal to or greater than the outer diameter of the cylinder 3. A touch switch 7 is installed on the movable plate 5 directly above the second through hole 51 through a detachable bracket 71. The contact block 62 can pass through the second through hole 51 to contact the touch switch 7.

[0028] An annular water supply pipe 8 is provided on the lower surface of the movable plate 5 directly above the test barrel 2. A plurality of drain holes are evenly provided at the bottom of the water supply pipe 8. A water tank 9 is provided on one side of the test barrel 2. A water inlet pipe 91 and a drain pipe 92 are respectively provided on the water tank 9. The water tank 9 is connected to an external water supply system through the water inlet pipe 91. The drain pipe 92 is connected to the water supply pipe 8. A water pump 93 and a control valve 94 are provided on the drain pipe 92. The water pump 93 and the control valve 94 are electrically connected to the touch switch 7. The on-off of the water pump 93 and the control valve 94 can be controlled through the touch switch 7.

[0029] Preferably, a fixing plate 52 is detachably installed in the second through hole 51. A third through hole 521 is formed in the center of the fixing plate 52. One end of the connecting rod 61 can pass through the third through hole 521. The detachable fixing plate 52 facilitates the quicker placement of the floating ball 6 in the cylinder 3, and the third through hole 521 on the fixing plate 52 can ensure that the connecting rod 61 can only move vertically stably.

[0030] Preferably, the telescopic rod 4 is an electric telescopic rod.

[0031] Working principle: Before the experiment, first lay sand and gravel between the test bucket 2 and the cylinder 3 and compact it to form a sand and gravel layer. Then lay soil above the sand and gravel layer and compact it to form a soil layer. The same variety of plants are planted inside the soil layer. Adjust the height of the movable plate 5 so that when the contact block 62 contacts the touch switch 7, the vertical distance value between the floating ball 6 and the bottom of the cylinder is the required water level height value for the experiment. Then start the water pump 93 and water through the water supply pipe 8. When groundwater gradually appears in the cylinder 3, it drives the floating ball 6 to float upward, and then drives the contact block 62 to move upward. When the contact block 62 contacts the touch switch 7, the water pump 93 and the control valve 94 are closed. At this time, the water level in the cylinder 3 is the required water level for the experiment. When the water level in the cylinder 3 drops, it drives the contact block 62 away from the touch switch 7. At this time, the water pump 93 and the control valve 94 are opened, and the water supply pipe 8 waters the test bucket 2. During the watering process, as the floating ball 6 rises to the required water level, the contact block 62 contacts the touch switch 7, and the water pump 93 and the control valve 94 are closed. With this device, the height of the groundwater level can be accurately controlled, and by adjusting the height of the touch switch 7 through the movable plate 5, the height of the groundwater level can be adjusted, and then different groundwater level environments can be provided for the same plant to conduct a comparative experiment on the growth conditions of the planted plants.

[0032] Embodiment 2

[0033] Please refer to Figures 5 to 6 As shown, in addition to all the technical features in Embodiment 1, this embodiment further includes: a plurality of partition plates 21 are vertically inserted and evenly distributed between the test bucket 2 and the cylinder 3. In this embodiment, the number of the partition plates 21 is four. The partition plates 21 are fixedly connected between the test bucket 2 and the cylinder 3 through U-shaped slots, and the space between the test bucket 2 and the cylinder 3 is evenly divided into four relatively independent regions.

[0034] By laying the same sand and gravel layer and soil layer in each region and planting different varieties of plants in each region, different plants can be provided with the same groundwater environment to conduct a comparative experiment on the growth conditions of the planted plants.

[0035] It should be noted that: the number of the partition plates 21 can be selected according to the test requirements.

[0036] The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, many changes can be made in the specific implementation manners and application scopes according to the idea of the present technical content. As long as these changes do not depart from the concept of the present utility model, they all fall within the protection scope of this patent.

Claims

1. A groundwater level test control device, characterized in that: It includes a bottom plate, a test barrel, a cylinder, a movable plate, a floating ball, a contact block and a touch switch. The test barrel is detachably arranged at the upper end of the bottom plate. The cylinder is fixedly arranged at the central position inside the test barrel. First through holes are evenly distributed on the circumferential side wall of the cylinder. The floating ball is arranged inside the cylinder. A connecting rod is connected to the circumferential outer wall of the floating ball. The contact block is arranged at one end of the connecting rod; The movable plate is arranged above the test barrel through four telescopic rods arranged on the upper surface of the bottom plate. The movable plate is provided with a circular second through hole. The position of the second through hole corresponds to the position of the cylinder. The touch switch is installed directly above the second through hole through a detachable bracket. The contact block can pass through the second through hole to contact the touch switch; A plurality of partition plates are vertically inserted between the test barrel and the cylinder at equal intervals. The partition plates evenly divide the space between the test barrel and the cylinder into a number of relatively independent regions.

2. The groundwater level test control device according to claim 1, characterized in that: The structure of the cylinder is cylindrical, and the cylinder is vertically arranged inside the test barrel.

3. The groundwater level test control device according to claim 1, characterized in that: A ring-shaped water supply pipe is arranged on the lower surface of the movable plate directly above the test barrel. Drainage holes are evenly arranged at the bottom of the water supply pipe.

4. A groundwater level test control device according to claim 1, wherein: A water tank is arranged on one side of the test barrel. An inlet pipe and a drain pipe are respectively arranged on the water tank. The water tank is connected to an external water supply system through the inlet pipe. The drain pipe is connected to the water supply pipe. A water pump and a control valve are arranged on the drain pipe. The water pump and the control valve are electrically connected to the touch switch.

5. A groundwater level test control device according to claim 1, wherein: A fixing plate is detachably installed in the second through hole. A third through hole is opened at the center of the fixing plate. One end of the connecting rod passes through the third through hole to be connected to the contact block.

6. The groundwater level test control device according to claim 1, wherein: The telescopic rod is an electric telescopic rod.

7. A groundwater level test control device according to claim 1, characterized in that: The number of the partition plates can be selected according to the test requirements.

Images