Switching device for automatic plot runoff measuring equipment
By designing a switch device for controlling liquid flow at the bottom of the container and a switch plug, the existing equipment costs and low measurement accuracy are solved, and accurate measurement of silt and sand content is achieved.
Patent Information
- Application Number
- CN202422122145.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The existing automatic monitoring equipment in runoff communities uses butterfly valves to control the storage and drainage of the liquid to be tested, which is costly, and sediment deposition causes abnormal opening and closing of the butterfly valve, affecting the measurement accuracy.
A switching device for automatic cell runoff measurement equipment was designed, using a conical structure at the bottom of the container and a plug plug to control the liquid flow. Combined with the layout of the electric push rod and the weighing sensor, the equipment cost is reduced and the accuracy deviation caused by sediment deposition is avoided.
It effectively reduces equipment costs, avoids abnormal opening and closing of butterfly valves, and improves measurement accuracy.
Smart Images
Figure CN223091385U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of runoff testing, in particular to a switch device used for automatic runoff measurement equipment in a residential area. Background Art
[0002] A runoff plot is a miniature experimental site used to quantitatively monitor, study and compare soil and water loss phenomena, verify soil erosion models, evaluate the effectiveness of soil and water conservation measures, and provide a scientific basis for soil and water resource management and environmental protection. It aims to quantitatively analyze soil erosion and soil and water loss processes under strictly controlled conditions. Measuring the sand content of a runoff plot can effectively evaluate soil erosion conditions, test the effectiveness of prevention and control measures, and provide key data support for water resource protection and soil and water conservation work.
[0003] To measure the sediment content using the specific gravity method, it is necessary to first determine the weight of clean water in the container at different temperatures. After weighing the mass of the turbid water sample, the mass of the sediment is calculated based on the weight of clean water corresponding to the water temperature and the corresponding substitution coefficient.
[0004] The existing automatic monitoring equipment for runoff areas uses weighing sensors to measure the overall weight of butterfly valves, containers and the liquid to be measured, which requires the selection of relatively larger-range weighing sensors. The large-range weighing sensors have large graduation values, and the measured muddy water weight has low accuracy, which in turn affects the accuracy of the final sediment content. At the same time, the weighing sensors bear the weight of butterfly valves and containers for a long time, and the metal creep caused by this will also affect its measurement accuracy. Utility Model Content
[0005] The technical problem to be solved by the utility model is: to solve the problem of high cost of existing sediment testing equipment, which uses butterfly valves to control the water storage and drainage of the liquid to be tested, and the problem of abnormal opening and closing of the butterfly valve due to sediment deposition, and to provide a switching device for automatic measurement equipment of small area runoff.
[0006] The technical solution of the utility model is specifically as follows:
[0007] A switch device for an automatic runoff measurement device for a plot, comprising a container capable of containing a sample, a water inlet connected to the top of the container, a butterfly valve connected to the water inlet, and a first drain port arranged at the bottom of the container;
[0008] The bottom of the container is conical, and a plug is placed inside the container. The plug is in the shape of a truncated cone, with the small end facing downward, and the cone angle of the truncated cone of the plug is consistent with the cone angle of the container; a push rod is provided under the first drain port, the push rod is coaxial with the first drain port, but the push rod is in contact with the first drain port but not connected;
[0009] The push rod is connected to a connecting rod at the bottom, the connecting rod is connected to an electric push rod of the electric cylinder, the cylinder body of the electric cylinder is fixed to the shell, and the axial direction of the electric push rod is consistent with the container.
[0010] There are two metal plates fixedly arranged on the outer wall of the container. The two metal plates are distributed at 180°, and a weighing sensor is arranged below each metal plate.
[0011] The container is connected to the water inlet through a feed pipe, and the feed pipe is a bent pipe.
[0012] A first overflow pipe is connected to the water inlet, and a first liquid level sensor is connected to the water inlet; a second overflow port for calibrating the sampling volume is also arranged on the outer side wall of the container, and a second liquid level sensor is installed on the second overflow port.
[0013] The first overflow pipe and the second overflow port are aggregated at the confluence port, and a second drain port is installed under the confluence port.
[0014] The conical surface at the bottom of the container is wrapped with a rubber skin.
[0015] The beneficial effects of the present utility model are as follows: The present utility model controls water storage and drainage through a plug, effectively reducing costs, avoiding abnormal opening and closing of the butterfly valve caused by sediment deposition, and at the same time improving the problem of low accuracy caused by the weight of the butterfly valve. Description of the Drawings
[0016] Figure 1 is a schematic structural diagram of the present utility model;
[0017] Figure 2 is a schematic diagram of the plug. Detailed Embodiment
[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0019] As Figure 1 、 Figure 2 shown, a switching device for an automatic measurement device of residential area runoff includes a container 9 capable of containing samples. The top of the container 9 is connected to a water inlet 3, and a butterfly valve 4 is connected to the water inlet 3. The inflow of liquid into the container 9 is controlled by controlling the opening and closing of the butterfly valve 4. A first drain port 11 is arranged at the lower part of the container 9.
[0020] There are two metal plates 18 fixedly arranged on the outer wall of the container 9. The two metal plates 18 are distributed at 180°, and a weighing sensor 10 is arranged below each metal plate 18. The weighing sensor 10 is used to weigh the weight of the container 9. In this way, the two metal plates 18 are supported above the two weighing sensors 10, and the weighing sensor 10 is connected to the housing 1 through a bracket 19.
[0021] The container 9 is connected to the water inlet 3 via a feed pipe, and the feed pipe is a curved pipe. Thus, the container 9 is separated from the water inlet 3 by the curved feed pipe, so that the weighing sensor 10 does not measure the weight of the water inlet 3 .
[0022] Furthermore, a first overflow pipe 5 is connected to the water inlet 3 , and a first liquid level sensor 2 is connected to the water inlet 3 .
[0023] Furthermore, a second overflow port 6 for calibrating the sampling volume is provided on the outer side wall of the container 9 , and a second liquid level sensor 8 is installed on the second overflow port 6 .
[0024] Furthermore, a collecting port 7 is fixed on the bracket 19 , the first overflow pipe 5 and the second overflow port 6 are collected at the collecting port 7 , and a second drain port 13 is installed below the collecting port 7 .
[0025] like Figure 1 , Figure 2 As shown, the bottom of the container 9 is conical, and a plug 16 is placed inside the container 9. The plug 16 is in the shape of a truncated cone with the small end facing downward. The cone angle of the truncated cone of the plug 16 is consistent with the cone angle of the container 9; a slot 21 is provided at the bottom of the plug 16.
[0026] A first drain outlet 11 is provided at the lower end of the container 9, and a push rod 12 is provided below the first drain outlet 11. The push rod 12 is coaxial with the first drain outlet 11, but the push rod 12 is in contact with the first drain outlet 11 but not connected. A plug 20 is provided on the top of the push rod 12, and the plug 20 can be inserted into the slot 21 at the bottom of the plug 16.
[0027] The push rod 12 is connected to the connecting rod 14 at the bottom, and the connecting rod 14 is connected to the electric push rod 22 of the electric cylinder 15. The cylinder body of the electric cylinder 15 is fixed to the housing 1, and the axial direction of the electric push rod 22 is consistent with the container 9. When water is to be stored, the electric cylinder 15 drives the push rod 12 to move downward, thereby driving the plug 20 to move downward, so that the plug 16 blocks the first drain port 11 by gravity. When water is to be drained, the electric cylinder 15 drives the plug 20 to move upward, so that the plug 16 is separated from the first drain port 11.
[0028] Furthermore, the conical surface at the bottom of the container 9 is wrapped with a rubber skin 17 .
[0029] The above is only a preferred embodiment of the present invention. It should be pointed out that those skilled in the art can make several changes and improvements without departing from the overall concept of the present invention, and these should also be regarded as the protection scope of the present invention.
Claims
1. A switching device for an automatic measurement device of community runoff, characterized in that: It comprises a container (9) capable of containing a sample, the top of the container (9) is connected to a water inlet (3), the water inlet (3) is connected to a butterfly valve (4), and the lower part of the container (9) is provided with a first drain outlet (11); The bottom of the container (9) is conical, and a plug (16) is placed inside the container (9). The plug (16) is in the shape of a truncated cone, with a small end facing downward, and the cone angle of the truncated cone of the plug (16) is consistent with the cone angle of the container (9); a push rod (12) is provided below the first drain outlet (11), and the push rod (12) is coaxial with the first drain outlet (11), but the push rod (12) and the first drain outlet (11) are in contact but not connected; The push rod (12) is connected to a connecting rod (14) at its lower portion, the connecting rod (14) is connected to an electric push rod (22) of an electric cylinder (15), the cylinder body of the electric cylinder (15) is fixed to the housing (1), and the axial direction of the electric push rod (22) is consistent with the container (9).
2. The switching device for the automatic measurement device of the runoff in the community according to claim 1, characterized in that: Two metal plates (18) are fixedly arranged on the outer wall of the container (9), the two metal plates (18) are distributed at 180 degrees, and a weighing sensor (10) is arranged below each metal plate (18).
3. The switch device for the automatic measurement equipment of the community runoff according to claim 1, characterized in that: The container (9) is connected to the water inlet (3) via a feed pipe, and the feed pipe is a curved pipe.
4. The switch device for the automatic measurement equipment of the residential area runoff according to claim 1, characterized in that: The water inlet (3) is connected to a first overflow pipe (5), and the water inlet (3) is connected to a first liquid level sensor (2); a second overflow port (6) for calibrating the sampling volume is also provided on the outer wall of the container (9), and a second liquid level sensor (8) is installed on the second overflow port (6).
5. The switch device for the automatic measurement equipment of the community runoff according to claim 4, characterized in that: The first overflow pipe (5) and the second overflow port (6) are connected to a collecting port (7), and a second drain port (13) is installed below the collecting port (7).
6. The switch device for the automatic measurement equipment of the community runoff according to claim 1, characterized in that: The conical surface at the bottom of the container (9) is wrapped with a rubber skin (17).