A time-sharing, continuous, automatic collection device for soil lost during water tank flushing experiments.

Abstract

This invention provides a time-sharing, continuous, automatic collection device for soil loss in a water tank flushing test. It includes a water supply pipe connected to a water tank via a transition pipe. A sample box is located at the bottom of the water tank, and a vegetation trough is located inside the sample box. A collection tank is located at the end of the water tank away from the transition pipe. Several interconnected frames are located inside the collection tank, and filter screens are installed within each frame. Several baffles corresponding to the filter screens are movably installed inside a mounting cavity. Each baffle has a sliding groove on one side, and adjacent baffles are slidably connected. A snap-fit ​​assembly is located inside the collection tank, and the baffles are driven by a drive assembly. During use, this invention determines the amount of soil loss by collecting soil from the flushed water through the filter screen, and simultaneously allows for individual collection of soil loss for each time period through the baffles and drive assembly.

Description

Technical Field

[0001] This invention relates to the fields of ecological slope protection and soil and water conservation, specifically to a time-sharing continuous automatic collection device for soil lost in a flume scouring test. Background Technology

[0002] Slopes are a common geological feature in human engineering activities. While they have nurtured magnificent landscapes, they have also brought a series of threats and problems to humanity. Slope excavation destroys surface vegetation and exacerbates soil erosion. Furthermore, in areas with steep slopes or poor geological structures, it can lead to collapses and landslides, causing serious harm to industrial and agricultural production and people's lives. The function of slope protection is to prevent the erosion of riverbanks, canals, and other slopes by water flow, and it is an important measure to ensure the smooth operation of related water conservancy projects. Traditional slope protection only considers the mechanical stability of the slope, neglecting its biological, environmental, and landscape requirements. With the increasing awareness of environmental protection and the growing demand for ecological protection, simple engineering slope protection is no longer sufficient to meet the needs of human society. How to restore the ecology while protecting slopes has become a growing focus of attention for experts and scholars. Ecological slope protection is a slope protection technology that integrates knowledge from multiple disciplines to support slopes, forming a comprehensive slope protection system composed of plants or engineering and plants. It has become an important technical field combining water conservancy and the environment. The erosion resistance of ecological slope protection, as an important indicator, has received widespread attention. Conducting experimental research on it is of great significance for the application and development of ecological slope protection.

[0003] However, current composite flume erosion testing devices still have the following problems in measuring soil loss:

[0004] 1: In current composite flume flushing tests, the weight of the vegetation flume before and after flushing is compared by weighing to obtain the change in soil loss during the flushing process. This method cannot guarantee continuous flushing of the sample, and the different water absorption rate of the soil at each time period during weighing causes weighing errors. In the existing equipment, it is inconvenient for operators to weigh larger and heavier vegetation samples.

[0005] 2: In the current composite flume erosion test, the average soil erosion depth is measured by steel ruler. Then, based on the average soil erosion depth and erosion duration, the amount of sediment loss per unit time per unit area under a certain water flow condition is calculated. This method cannot guarantee continuous erosion of the sample, and due to the different distribution of erosion pits on the sample, the error of the average erosion depth is large when measuring multiple points.

[0006] 3: In current composite flume scouring tests, the amount of soil loss is calculated by measuring the sand content at a certain time period. This method requires the operator to make multiple measurements during the scouring process. The operator collects the water during the scouring process every ten minutes or half an hour and measures the sand content of the collected water to determine the amount of soil loss at each time period. For samples with good scouring resistance, scouring often takes several hours. With this operation method, the operator needs to collect water and weigh it dozens or even more times. The operator must stay by the test device throughout the entire test, which is not only very inconvenient, but also results in a large measurement error.

[0007] 4. The three existing technologies mentioned above are commonly used methods that cannot guarantee continuous scouring of the sample, and the measurement error of soil loss in a certain period of time is relatively large. Summary of the Invention

[0008] The purpose of this invention is to provide a time-sharing, continuous, automatic collection device for soil lost in a water tank flushing test, in order to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] A time-sharing continuous automatic collection device for soil loss in a water tank flushing test is provided. The water supply pipe is connected to the water tank through a transition pipe. An intelligent electromagnetic flow meter is installed inside the water supply pipe. A sample box is installed at the bottom of the water tank. A vegetation trough is installed inside the sample box. A water collection tank is installed at the end of the water tank away from the transition pipe. The water flushed inside the water tank carries the soil washed away in the vegetation trough into the water collection tank.

[0011] The water collection tank is equipped with several frames inside, which are arranged in descending order away from the water tank. Each frame is equipped with a filter screen for filtering soil in the water. The water collection tank is equipped with shielding components that cover the filter screens in sequence.

[0012] Preferably, the water collection tank is connected to the underground reservoir via a drainage pipe.

[0013] Preferably, the frame is fixed to the inner wall of the water collection tank by nuts.

[0014] Preferably, the shielding assembly includes baffles, and the baffles are movably disposed in an installation cavity opened inside the water collection tank. The baffles are baffle number one, baffle number two, and baffle number three. Each baffle has a sliding groove on one side, and adjacent baffles are slidably connected. The filters are filter number one, filter number two, and filter number three. When no external force is applied, baffle number one is inside the installation cavity. When no external force is applied, baffle number two and baffle number three are respectively in a state of blocking filter number two and filter number three. A slot is opened on the side of baffle number one away from baffle number two. A buckle assembly is provided inside the water collection tank to movably lock baffle number one. The baffles are all driven to move by a drive assembly.

[0015] Preferably, the driving assembly includes electromagnets fixedly disposed inside the mounting cavity, namely electromagnet No. 1, electromagnet No. 2, and electromagnet No. 3. Each of the baffles is provided with a magnetic block magnetically connected to the electromagnet, namely magnetic block No. 1, magnetic block No. 2, and magnetic block No. 3. A first spring is provided between electromagnet No. 1 and magnetic block No. 1, a second spring is provided between electromagnet No. 2 and magnetic block No. 2, and a third spring is provided between electromagnet No. 3 and magnetic block No. 3. Electromagnet No. 1 is controlled to be turned on by a timer disposed on the outer wall of the water collection tank. The magnetic force between electromagnet No. 1 and magnetic block No. 1 is a repulsive force, and the magnetic forces between electromagnet No. 2 and magnetic block No. 2, and between electromagnet No. 3 and magnetic block No. 3 are both attractive forces.

[0016] Preferably, the latching assembly includes a first relay electrically connected to the second electromagnet. The first relay is disposed in a latching cavity opened inside the water collection tank. A movable plate that is in movable contact with the first relay is movably disposed inside the latching cavity. A fourth spring is fixedly connected to the movable plate and the inner wall of the latching cavity. A latching rod that movably extends into the latching groove is fixedly connected to the movable plate. The end of the latching rod that contacts the first baffle is sloped. A pull rod that movably extends out of the water collection tank is fixedly connected to the side of the movable plate away from the latching rod.

[0017] Preferably, the water collection tank has a trigger chamber inside, and a second relay electrically connected to the third electromagnet is installed inside the trigger chamber. A pressing rod that extends into the mounting cavity and is in contact with the baffle is movably installed inside the trigger chamber. A fifth spring is fixedly connected to the inner wall of the mounting cavity. A trigger plate that is in contact with the second relay is installed inside the trigger chamber. An elastic rod is fixedly connected to the inner wall of the trigger chamber. A slot for the pressing rod to movably extend into is provided on the trigger plate. An elastic block that is in contact with the pressing rod is installed inside the slot.

[0018] Preferably, a plurality of track rods are symmetrically fixed inside the mounting cavity, and the baffle is movably sleeved on the track rods.

[0019] Preferably, the trigger cavity is provided with a limiting block that makes movable contact with the trigger plate.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. By setting up baffles, electromagnets and magnetic blocks, the baffles sequentially block and open the filter screen. In addition, by setting up timers and relays, it is possible to collect soil at each time period.

[0022] 2. The entire device requires no operator to be present at all times; its automated structure saves operators time and is very convenient.

[0023] 3. This device can ensure that the water after rinsing the vegetation trough is filtered through a filter screen while the vegetation trough is continuously rinsed, and the soil contained in the water is collected automatically in stages. The collected soil is then dried and weighed. Compared with the existing technology, it can accurately analyze the changes in soil loss during the rinsing process.

[0024] In the process of using this invention, the water pump is first turned on to supply water to the water supply pipe, and at the same time, the timer is turned on. The water inside the water supply pipe flushes the vegetation trough and then flows into the filter screen in the first frame for filtration. When the timer reaches its set time, the timer controls the external power supply via a microcontroller to power the first electromagnet. At this time, the first electromagnet drives the first magnetic block to extend the first baffle from inside the mounting cavity and cover the first frame. The first baffle is then held in place by a locking rod. During this process, the second magnetic block drives the second baffle to retract into the mounting cavity. The flushed water then flows through the upper surface of the first baffle and into the filter screen in the second frame. When the second baffle resets, the squeezing rod resets, causing the trigger plate to move and squeeze the second relay. At this time, the third electromagnet is energized, attracting the third magnetic block to retract the third baffle into the mounting cavity. The flushed water then flows through the upper surfaces of the first and second baffles into the filter screen inside the third frame. After the test, the soil collected in the filter screen is dried and weighed to calculate the amount of soil loss. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of the water tank of the present invention;

[0027] Figure 3 This is a schematic diagram of the three-dimensional structure of the water collection tank of the present invention;

[0028] Figure 4 This is a schematic diagram of the three-dimensional structure of the framework of the present invention;

[0029] Figure 5This is a schematic diagram of the filter structure of the present invention;

[0030] Figure 6 This is a schematic diagram of the internal mounting cavity of the water collection tank of the present invention;

[0031] Figure 7 This is a schematic diagram of the internal structure of the water collection tank of the present invention;

[0032] Figure 8 This is a schematic diagram of the internal structure of the snap-fit ​​cavity of the present invention;

[0033] Figure 9 This is a schematic diagram of the internal structure of the trigger cavity of the present invention;

[0034] Figure 10 This is a schematic diagram of the three-dimensional structure of the baffle of the present invention;

[0035] Figure 11 This is a schematic diagram of the sliding connection structure of the baffle of the present invention;

[0036] Figure 12 A schematic diagram of the four baffle structure for this invention.

[0037] In the diagram: 1. Water supply pipe; 2. Transition circular pipe; 3. Water tank; 4. Intelligent electromagnetic flowmeter; 5. Sample box; 6. Vegetation trough; 7. Water collection tank; 8. Drainage pipe; 9. Frame; 91. Nut; 10. Filter screen; 101. Filter screen No. 1; 102. Filter screen No. 2; 103. Filter screen No. 3; 11. Mounting cavity; 12. Baffle; 121. Baffle No. 1; 122. Baffle No. 2; 123. Baffle No. 3; 124. Baffle No. 4; 13. Sliding groove; 14. Slot; 15. Electromagnet; 151. Electromagnet No. 1; 152. Electromagnet No. 2; 1 53. Electromagnet No. 3; 16. Magnetic block; 161. Magnetic block No. 1; 162. Magnetic block No. 2; 163. Magnetic block No. 3; 171. First spring; 172. Second spring; 173. Third spring; 18. Timer; 19. Snap-fit ​​cavity; 20. First relay; 21. Movable plate; 22. Fourth spring; 23. Locking rod; 24. Pull rod; 25. Trigger cavity; 26. Second relay; 27. Pressing rod; 28. Fifth spring; 29. ​​Trigger plate; 30. Elastic rod; 31. Slot; 32. Elastic block; 33. Track rod; 34. Limiting block. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Please see Figures 1 to 12 The present invention provides a technical solution:

[0040] Example 1:

[0041] A time-sharing continuous automatic collection device for soil loss in a water tank flushing test includes a water supply pipe 1, which is connected to a water tank 3 via a transition pipe 2. An intelligent electromagnetic flow meter 4 is installed inside the water supply pipe 1. A sample box 5 is located at the bottom of the water tank 3, and a vegetation trough 6 is installed inside the sample box 5. A water collection tank 7 is located at the end of the water tank 3 furthest from the transition pipe 2. Water flushed inside the water tank 3 flows into the water collection tank 7, which is connected to an underground reservoir via a drain pipe 8. In this embodiment, the water supply pipe 1 is supplied by an external water pump. The water inside the water supply pipe 1 flows into the water tank 3 through the transition pipe 2 to flush the vegetation trough 6. The flushed water contains a large amount of soil particles. After flushing, the water flows into the water collection tank 7, is filtered by a filter screen 10, and then flows into the sewer through the drain pipe 8. The intelligent electromagnetic flow meter 4 in this embodiment is a device well-known to those skilled in the art and will not be described in detail here. Its main function is to regulate and measure the flow rate of water inside the water supply pipe 1.

[0042] The water collection tank 7 has several frames 9 that are fixedly connected to each other. The frames 9 are arranged in a downward direction away from the water tank 3. The frames 9 are fixed to the inner wall of the water collection tank 7 by nuts 91. The frames 9 have filters 10 for filtering soil in the water. The water collection tank 7 has shielding components that cover the filters 10 in sequence. In this embodiment, there are three frames 9. When the frames 9 are fixed to the inside of the water collection tank 7 by nuts, the side walls of two adjacent frames 9 are in a tight fit. During the installation of the frames 9 inside the water collection tank 7, it is ensured that the flushed water can fall into the first filter 101 inside the first frame 9.

[0043] Example 2:

[0044] Based on Embodiment 1, the structure of the shielding component in Embodiment 1 is disclosed. The shielding component includes an installation cavity 11 opened inside the water collection tank 7. Several baffles 12 corresponding to the filter screens 10 are movably disposed inside the installation cavity 11. The baffles 12 are designated as baffle 121, baffle 122, and baffle 123. In this embodiment, baffle 121, baffle 122, and baffle 123 correspond to three filter screens 10 respectively. There are three filter screens 10 in this embodiment. Figure 6The images show filter screen 101, filter screen 102, and filter screen 103, respectively. In this embodiment, baffle 121 and filter screen 101, baffle 122 and filter screen 102, and baffle 123 and filter screen 103 are mutually corresponding. The baffles 12 are slidably connected, and their overall tilt is set to a certain degree inside the mounting cavity 11. The tilt does not need to be too large; it only needs to ensure that when water falls onto the baffle 12, it can flow along the baffle 12 into the next filter screen 10. Each side of the baffle 12 has a sliding groove 13, and adjacent baffles 12 are slidably connected. When not subjected to external force, baffle 121 is located inside the mounting cavity 11. Baffle 122 and baffle 123 are in a state of blocking the corresponding filter screen 10 when not subjected to external force. Baffle 121 has a slot 14 on one side. The water collection tank 7 is provided with a buckle assembly that can be moved to lock baffle 121. All baffles 12 are driven by the drive assembly. In this embodiment, in the initial state, baffle 121 is located inside the mounting cavity 11. At this time, filter screen 101 is in a leaking state. At this time, the flushing water can fall directly into filter screen 101. Baffle 122 and baffle 123 are in a state of blocking filter screen 102 and filter screen 103 to avoid mutual interference.

[0045] Example 3:

[0046] Based on Embodiment 1, the structure of the driving component in Embodiment 1 is disclosed. The driving component includes electromagnets 15 fixedly disposed inside the mounting cavity 11. The electromagnets 15 are electromagnet 151, electromagnet 152, and electromagnet 153. The driving component in this embodiment is mainly composed of electromagnets 15 and magnetic blocks 16, which correspond one-to-one with the baffles 12. To prevent adjacent electromagnets 15 and magnetic blocks 16 from interfering with each other, baffles can be set between adjacent electromagnets 15 and magnetic blocks 16 to prevent mutual interference of magnetic forces. Each baffle 12 is provided with a magnetic block corresponding to the electromagnet 15. Magnetic blocks 16 are magnetically connected, namely magnetic block 161, magnetic block 162, and magnetic block 163. A first spring 171 is fixedly connected between electromagnet 151 and magnetic block 161, a second spring 172 is connected between electromagnet 152 and magnetic block 162, and a third spring 173 is connected between electromagnet 153 and magnetic block 163. In this embodiment, the first spring 171 between electromagnet 151 and magnetic block 161 is shorter. When electromagnet 151 drives magnetic block 161, it drives baffle 121 to block one... When filter 101 is in operation, the first spring 171 is in a stretched state. In this embodiment, the second spring 172 and the third spring 173 are both relatively long. When the second baffle 122 and the third baffle 123 retract into the mounting cavity 11, the second spring 172 and the third spring 173 are in a compressed state. Electromagnet 151 is activated by a timer 18 located on the outer wall of the water collection tank 7. In this embodiment, the timer 18 is a smart timer that can control a smart switch via Bluetooth or a wireless network to power electromagnet 151 from an external power source. The power supply is connected in series with electromagnet 151. When electromagnet 151 is energized, it becomes magnetic, driving magnetic block 161 to move baffle 121 to block filter 101. At this time, the flushed water will not fall into filter 101, but will fall on the upper surface of baffle 121 and then flow into filter 102. The magnetic force between electromagnet 151 and magnetic block 161 is a repulsive force, while the magnetic force between electromagnet 152 and magnetic block 162, and between electromagnet 153 and magnetic block 163, is an attractive force.

[0047] Example 4:

[0048] Based on Embodiment 2, the structure of the snap-fit ​​assembly in Embodiment 2 is disclosed. The snap-fit ​​assembly includes a first relay 20 electrically connected to the second electromagnet 152. The first relay 20 is disposed in the snap-fit ​​cavity 19 opened inside the water collection tank 7. In this embodiment, the first relay 20 and the second electromagnet 152 are connected in series with an external power supply via a wire. When the first baffle 121 extends out of the mounting cavity 11, the first baffle 121 first squeezes the locking rod 23. At this time, the locking rod 23 drives the movable plate 21 to move upward and squeeze the first relay 20. At this time, the fourth spring 22 is in a compressed state. At this time, the first relay 20 begins to supply power to the second electromagnet 152. When the first baffle 121 covers the first filter screen 101, the locking groove 14 moves to the bottom of the locking rod 23. At this time, the fourth spring 22 is compressed. Under the action of the action, the clamping rod extends into the groove 14 and clamps the first baffle 121. At this time, the first baffle 121 is in a state of always blocking the first filter screen 101. When the subsequent test is over and the first baffle 121 needs to be reset, the operator gently pulls the pull rod 24 to make the clamping rod 23 exit the groove 14. At this time, the first baffle 121 is reset under the action of the first spring 171. The snap-fit ​​cavity 19 is movably provided with a movable plate 21 that is in contact with the first relay 20. The movable plate 21 and the inner wall of the snap-fit ​​cavity 19 are fixedly connected with a fourth spring 22. The movable plate 21 is fixedly connected with a clamping rod 23 that extends into the groove 14. The end of the clamping rod 23 that contacts the first baffle 121 is sloping. The side of the movable plate 21 away from the clamping rod 23 is fixedly connected with a pull rod 24 that extends out of the water collection tank 7.

[0049] The water collection tank 7 has a trigger chamber 25 inside, and a second relay 26 electrically connected to the third electromagnet 153 is installed inside the trigger chamber 25. In this embodiment, the second relay 26 and the third electromagnet 153 are connected in series with an external power supply via a wire. When the first relay 20 supplies power to the second electromagnet 152, the second electromagnet 152 attracts the second magnetic block 162, causing the second baffle 122 to retract into the mounting cavity 11. At this time, the second filter screen 102 leaks out, and the flushed water falls onto the surface of the first baffle 121 and then flows into the second filter screen. Inside the mesh 102, during the process of the second baffle 122 retracting into the mounting cavity 11, the second baffle 122 first squeezes the squeezing rod 27. At this time, one end of the squeezing rod 27 is inserted into the slot 31 and is stuck under the action of the elastic block 32. At this time, the squeezing rod 27 and the trigger plate 29 are in a stuck state. When the first relay 20 supplies power to the second electromagnet 152 for a set time, it automatically cuts off the power to the second electromagnet 152. At this time, the second baffle 122 resets under the action of the second spring 172 and covers the second filter screen 102 again. During the reset process, the pressing rod 27 is reset under the action of the fifth spring 28. This reset process causes the trigger plate 29 to press the second relay 26. At this time, the second relay 26 supplies power to the third electromagnet 153. As the pressing rod 27 moves the trigger plate 29, the trigger plate 29 contacts the second relay 26. Then, the pressing rod 27 continues to reset under the action of the fifth spring 28, while the trigger plate 29 stops moving due to the obstruction of the second relay 26. At this point, the pressing rod 27 and the trigger plate 29 separate. The trigger plate 29 then presses the second relay... After the electrical appliance 26 is reset under the action of the elastic rod 30, the trigger cavity 25 is movably provided with a pressing rod 27 that extends into the mounting cavity 11 and is in movable contact with the baffle 12. The pressing rod 27 and the inner wall of the mounting cavity 11 are fixedly connected with a fifth spring 28. The trigger cavity 25 is provided with a trigger plate 29 that is in movable contact with the second relay 26. The trigger plate 29 and the inner wall of the trigger cavity 25 are fixedly connected with the elastic rod 30. The trigger plate 29 is provided with a slot 31 for the pressing rod 27 to move into. The slot 31 is provided with an elastic block 32 that is in movable contact with the pressing rod 27.

[0050] Several track rods 33 are symmetrically fixed inside the mounting cavity 11. The baffle 12 is movably sleeved on the track rods 33. The arrangement of the track rods 33 here can make the movement of the baffle 12 more stable. Each baffle 12 corresponds to two track rods 33.

[0051] The trigger cavity 25 is provided with a limiting block 34 that is in contact with the trigger plate 29. The limiting block 34 is provided so that when the pressing rod 27 is pressed into the slot 31, the trigger plate 29 can remain stationary under the action of the limiting block 34, which makes it convenient for the pressing rod 27 to be inserted into the slot 31.

[0052] The above embodiments all use three filters 10 and three baffles 12 as examples. Of course, multiple filters 10 and baffles 12 can also be set during operation, such as... Figure 12 As shown in the figure, baffle 124 is set up in this figure.

[0053] Working principle:

[0054] During use, multiple frames 9 and filter screens 10 are lowered sequentially in a direction away from the water tank 3 and fixed inside the water collection tank 7 with nuts 91. This allows the water flushed inside the water tank 3 to fall into the filter screens 10. The timer 18 is then set to one hour, and the power supply time of the first relay 20 and the second relay 26 is also set to one hour (this example uses one hour as an example; in actual operation, the operator can set the time according to the needs of the experiment).

[0055] At this time, the operator turns on the water pump to supply water to the water supply pipe 1, and at the same time, the operator turns on the timer 18. At this time, the flushed water falls into the first filter screen 101 for filtration. When the timer 18 reaches the set time, the timer 18 controls the external power supply through the microcontroller to supply power to the first electromagnet 151. At this time, the first electromagnet 151 repels the first magnetic block 161, causing the first baffle 121 to extend out of the mounting cavity 11 and block the top of the first frame 9. At this time, the first baffle 121 blocks the first filter screen 101, and the soil loss from the first hour of flushing is retained inside the first filter screen 101.

[0056] During the process of the first baffle 121 extending out of the mounting cavity 11, the first baffle 121 first squeezes the locking rod 23. At this time, the locking rod 23 drives the movable plate 21 to squeeze the first relay 20. At this time, the first relay 20 starts to control the external power supply to power the second electromagnet 152. When the first baffle 121 blocks the first frame 9, the locking groove 14 moves to the locking rod 23. At this time, the locking rod 23 extends into the locking groove 14 under the action of the fourth spring 22. At this time, the locking rod 23 locks the first baffle 121. At this time, the first baffle 121 is in a state of always blocking the first filter screen 101.

[0057] When the first relay 20 supplies power to the second electromagnet 152, the second electromagnet 152 attracts the second magnetic block 162, causing the second baffle 122 to retract into the mounting cavity 11. At this time, the second filter screen 102 leaks out, and the flushed water flows into the second filter screen 102 through the upper surface of the first baffle 121. Simultaneously, as the second baffle 122 retracts into the mounting cavity 11, it presses the pressing rod 27, causing it to extend into the slot 31 inside the trigger plate 29 and be held in place by the elastic block 32. After the first relay 20 supplies power to the second electromagnet 152 for one hour, the first relay 20 automatically de-energizes the second electromagnet 152. At this time, the second baffle 122 resets under the action of the second spring 172, blocking the second filter screen 102 again. The soil loss data for the second hour is stored. During the reset process of the second baffle 122, the squeezing rod 27 is reset under the action of the fifth spring 28. At this time, the squeezing rod 27 is stuck inside the slot 31 under the action of the elastic block 32. Therefore, during the reset process, the squeezing rod 27 can drive the trigger plate 29 to move and squeeze the second relay 26. At this time, the second relay 26 supplies power to the third electromagnet 153. During the process of the squeezing rod 27 driving the trigger plate 29 to move, after the trigger plate 29 contacts the second relay 26, the squeezing rod 27 continues to reset under the action of the fifth spring 28, while the trigger plate 29 is blocked by the second relay 26 and no longer moves. At this time, the squeezing rod 27 and the trigger plate 29 are separated. After squeezing the second relay 26, the squeezing rod 27 is reset under the action of the elastic rod 30.

[0058] When the third electromagnet 153 is energized, it attracts the third magnetic block 163, which in turn drives the third baffle 123 to retract into the mounting cavity 11. At this time, the flushed water flows into the third filter screen 103 through the upper surfaces of the first baffle 121 and the second baffle 122. When the second relay 26 automatically de-energizes the third electromagnet 153 after one hour, the third baffle 123 is reset under the action of the third spring 173 and blocks the third filter screen 103 again. At this time, the third filter screen 103 stores the amount of soil lost after the third hour of flushing.

[0059] At this time, all the filter screens 10 are blocked, and the water after rinsing will no longer flow into the filter screens 10. At this time, the operator turns off the water pump and then collects, dries and weighs the soil inside the No. 1 filter screen 101, No. 2 filter screen 102 and No. 3 filter screen 103 respectively, so that the amount of soil loss per hour can be calculated.

[0060] When the next set of tests is to be conducted, the first baffle 121 is reset first. At this time, the pull rod 24 is pulled to make the locking rod 23 exit the locking slot 14, and the first baffle 121 is reset under the action of the first spring 171.

[0061] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A time-sharing continuous automatic collection device for soil lost in a water tank flushing test, comprising a water supply pipe (1), characterized in that: The water supply pipe (1) is connected to the water tank (3) through the transition pipe (2). The water supply pipe (1) is equipped with an intelligent electromagnetic flow meter (4). The bottom of the water tank (3) is equipped with a sample box (5). The sample box (5) is equipped with a vegetation trough (6). The end of the water tank (3) away from the transition pipe (2) is equipped with a water collection tank (7). The water flushed inside the water tank (3) carries the soil washed away in the vegetation trough (6) into the water collection tank (7). The water collection tank (7) is provided with several frames (9), and the frames (9) are arranged in sequence at a lower position away from the water tank (3). Each frame (9) is provided with a filter screen (10) for filtering the soil in the water. The water collection tank (7) is provided with a shielding component that covers the filter screen (10) in sequence. The shielding assembly includes baffles (12), which are movably disposed in an installation cavity (11) inside the water collection tank (7). The baffles (12) are baffle number 1 (121), baffle number 2 (122), and baffle number 3 (123). Each baffle (12) has a sliding groove (13) on one side, and adjacent baffles (12) are slidably connected. The filters (10) are filters number 1 (101), filters number 2 (102), and filters number 3 (103). When the first baffle (121) is not subjected to external force, it is located inside the mounting cavity (11). When the second baffle (122) and the third baffle (123) are not subjected to external force, they are respectively in the state of blocking the second filter screen (102) and the third filter screen (103). The first baffle (121) has a slot (14) on the side away from the second baffle (122). The water collection tank (7) is provided with a buckle assembly that can be moved to lock the first baffle (121). The baffles (12) are all driven by the drive assembly. The driving assembly includes electromagnets (15) fixedly installed inside the mounting cavity (11). The electromagnets (15) are electromagnet No. 1 (151), electromagnet No. 2 (152), and electromagnet No. 3 (153). Each of the baffles (12) is provided with a magnetic block (16) magnetically connected to the electromagnets (15). The magnetic blocks (16) are magnetic block No. 1 (161), magnetic block No. 2 (162), and magnetic block No. 3 (163). A first spring (171) is provided between electromagnet No. 1 (151) and magnetic block No. 1 (161). A second spring (172) is connected between (152) and the second magnetic block (162), and a third spring (173) is connected between the third electromagnet (153) and the third magnetic block (163). The first electromagnet (151) is controlled to open by a timer (18) set on the outer wall of the water collection tank (7). The magnetic force between the first electromagnet (151) and the first magnetic block (161) is a repulsive force, and the magnetic forces between the second electromagnet (152) and the second magnetic block (162) and the third electromagnet (153) and the third magnetic block (163) are attractive forces. The latching assembly includes a first relay (20) electrically connected to the second electromagnet (152). The first relay (20) is located in a latching cavity (19) inside the water collection tank (7). A movable plate (21) is movably disposed inside the latching cavity (19) and is in contact with the first relay (20). A fourth spring (22) is fixedly connected to the movable plate (21) and the inner wall of the latching cavity (19). A latching rod (23) is fixedly connected to the movable plate (21) and extends into the latching groove (14). The end of the latching rod (23) that contacts the first baffle (121) is sloped. A pull rod (24) that extends out of the water collection tank (7) is fixedly connected to the side of the movable plate (21) away from the latching rod (23). The water collection tank (7) has a trigger chamber (25) inside. The trigger chamber (25) is equipped with a second relay (26) that is electrically connected to the third electromagnet (153). The trigger chamber (25) is equipped with a pressing rod (27) that extends into the mounting cavity (11) and is in contact with the baffle (12). The pressing rod (27) and the inner wall of the mounting cavity (11) are fixedly connected with a fifth spring (28). The trigger chamber (25) is equipped with a trigger plate (29) that is in contact with the second relay (26). The trigger plate (29) and the inner wall of the trigger chamber (25) are fixedly connected with an elastic rod (30). The trigger plate (29) is equipped with a slot (31) for the pressing rod (27) to extend into. The slot (31) is equipped with an elastic block (32) that is in contact with the pressing rod (27).

2. The time-sharing continuous automatic collection device for soil lost in a water tank flushing test according to claim 1, characterized in that: The water collection tank (7) is connected to the underground reservoir through a drainage pipe (8).

3. The time-sharing continuous automatic collection device for soil lost in a water tank flushing test according to claim 1, characterized in that: The frame (9) is fixed on the inner wall of the water collection tank (7) by nuts (91).

4. The time-sharing continuous automatic collection device for soil lost in a water tank flushing test according to claim 1, characterized in that: The mounting cavity (11) is symmetrically fixed with several track rods (33), and the baffle (12) is movably sleeved on the track rods (33).

5. The time-sharing continuous automatic collection device for soil lost in a water tank flushing test according to claim 1, characterized in that: The trigger cavity (25) is provided with a limiting block (34) that is in active contact with the trigger plate (29).

Images