Filtering type airport drainage construction system

Abstract

The invention relates to the technical field of airport drainage ditch construction, in particular to a filtering type airport drainage construction system which comprises an airport filtering type drainage ditch and a drainage construction method.The airport filtering type drainage ditch comprises a drainage ditch body, a cover plate, a pressure water generating mechanism and a settling tank; a cover plate is arranged at the top end of the drainage ditch body, a plurality of filtering holes are distributed in the cover plate, and the inner wall of the drainage ditch body is connected with a settling tank in the same direction as the drainage ditch body. The drainage construction method comprises the steps of generating pressure water, flushing the bottom of the settling tank with the pressure water, recycling redundant filtered water and the like. According to the self-cleaning drainage ditch, the effect of self-cleaning of the drainage ditch body without manual power is achieved, labor can be greatly saved, and the safety risk of airport use caused by blockage of sediments of the drainage ditch body is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of airport drainage ditch construction, and in particular to a filtering type airport drainage construction system. Background Art

[0002] The main functions of airport drainage ditches include the following aspects:

[0003] (1) Preventing water accumulation at the airport: Drainage ditches can collect and discharge water accumulated in the airport, preventing large amounts of water from accumulating at the airport due to excessive rainfall, thereby ensuring that aircraft can take off and land safely.

[0004] (2) Preventing external flooding: The drainage system can prevent large amounts of external flooding from invading the airport flight area, thus protecting airport facilities from flood damage.

[0005] (3) Reduce pavement damage: By timely removing moisture from the pavement or soil area, pavement damage caused by excessive moisture can be prevented to ensure the normal operation of the airport.

[0006] Most of the existing airport drainage ditches use filter plates to filter impurities to prevent clogging. However, they lack the ability to filter fine gravel and soil. Over time, silt will appear in the drainage ditch. When there is a lot of silt, the drainage ditch needs to be cleaned, which requires a lot of manpower. The existing drainage ditch still lacks the function of self-cleaning silt, so it is necessary to improve the existing technology. Summary of the invention

[0007] Based on the problems existing in the prior art, the present invention provides a filtering airport drainage construction system, which can remove silt in the drainage ditch by self-cleaning, thus greatly saving manpower.

[0008] To solve the above problems, the technical solution of the present invention is:

[0009] A filtering airport drainage construction system, comprising an airport filtering drainage ditch and a drainage construction method, wherein the airport filtering drainage ditch comprises a drainage ditch body, a cover plate, a pressure water generating mechanism, and a sedimentation tank;

[0010] A cover plate is provided at the top of the drainage ditch body, and a plurality of filter holes are arranged on the cover plate. The inner wall of the drainage ditch body is connected to a sedimentation tank with the same direction as the drainage ditch body;

[0011] The sedimentation tank is connected to the inner wall of the drainage ditch body through a vibration mechanism, and the bottom end of the cover plate is connected to a pressure water generating mechanism, which is used to receive the water source entering the filter hole and process it into pressure water and spray it into the sedimentation tank, so as to achieve self-cleaning of the sediment by flushing the bottom of the sedimentation tank;

[0012] A plurality of overflow holes are evenly distributed on the top of the side wall of the sedimentation tank, a diversion channel for recycled water is formed between the bottom of the sedimentation tank and the bottom of the drainage ditch body, and water outlets are evenly distributed at the bottom of the drainage ditch body, and the water outlets are connected to the water reservoir through pipes pre-buried in the soil;

[0013] The vibration mechanism comprises a sleeve and a guide rod slidably connected to the sleeve; the pressure water generating mechanism comprises a shell in an inverted quadrangular pyramid structure, and the top of the shell is provided with a connecting edge folded outwards.

[0014] Preferably, the cross-section of the drainage ditch body is an inverted trapezoidal structure, and the inner sides of the two top ends of the drainage ditch body are respectively provided with slots along the length direction, the two ends of the cover plate are snap-connected with the slots, and the cover plate is provided with a plurality of filter holes arranged in a matrix.

[0015] Preferably, the two inner walls of the drainage ditch body are integrally formed with a pedestal, the tops of the two pedestals are at the same height, the cross-section of the sedimentation trough is a rectangular structure, the tops of both ends of the sedimentation trough are integrally formed with outwardly folded connecting plates, and a number of vibration mechanisms are connected between the bottom end of the connecting plate and the top of the pedestal.

[0016] Preferably, the vibration mechanism comprises a sleeve fixedly arranged on the upper end of the support platform in the longitudinal direction, the top end of the guide rod is fixedly connected to the lower end of the connecting plate, and a vibration spring is arranged between the connecting plate and the top end of the sleeve and on the outer sleeve of the guide rod;

[0017] The vibration spring is used to cooperate with the pressure water generating mechanism to make the sedimentation tank vibrate. When the pressure water impacts the bottom of the sedimentation tank, the vibration spring is subjected to the impact force brought by the bottom of the sedimentation tank. Under the combined action of the vibration spring and the pressure water impact, the sedimentation tank is vibrated with the expansion and contraction of the vibration spring, and the fine stone particles or soil deposits on the bottom of the sedimentation tank are loosened by vibration, and are washed away with the water flow after loosening.

[0018] Preferably, the bottom end of the cover plate is provided with four embedded screws in a rectangular shape, the connecting edge is provided with through holes that match the embedded screws, and the embedded screws pass through the through holes and are locked by nuts;

[0019] The upper port of the shell surrounds all the filter holes, the lower port of the shell is connected to a cylindrical water outlet pipe, and the bottom end of the water outlet pipe is connected to a pressure water output assembly;

[0020] The housing is provided with a buoyancy piston matched with the water outlet pipe, the buoyancy piston includes a piston body, the piston body matches with the inner wall of the water outlet pipe and is used to close the water outlet pipe, the top of the piston body is connected with a connecting rod through a fixing block, and the bottom end of the connecting rod is fixedly connected to the middle of the top of the fixing block;

[0021] The top of the connecting rod is fixedly connected to a sealing shell, and four sliding rods are arranged in a rectangular shape at the top of the sealing shell. The sliding rods are arranged in the longitudinal direction, and a sliding hole is provided at the bottom of the cover plate opposite to the sliding rod. The sliding rod is slidably connected to the sliding hole, and a return spring is provided between the lower end of the sliding hole and the top of the sealing shell and located on the outer sleeve of the sliding rod;

[0022] The piston body is made of rubber material, the fixed block is made of buoyancy material or the fixed block is a hollow shell lightweight structure, the sealed shell is filled with buoyancy material, and when the fixed block is made of buoyancy material, the bottom end of the connecting rod penetrates the fixed block and is fixedly connected to the fixed block and the top of the piston body at the same time;

[0023] A plurality of assisting springs are also arranged on the outer periphery of the sealing shell, and two ends of the assisting springs are respectively connected to the outer wall of the sealing shell and the inner wall of the shell.

[0024] Preferably, under the action of the return spring, when the piston body cooperates with the inner wall of the water outlet pipe, the booster spring is in a horizontal posture, and there is no upward or downward force on the piston body;

[0025] When the water in the shell accumulates to a set height, the buoyancy overcomes the elastic force of the return spring and the gravity of the buoyancy piston, causing the piston body to float upward and detach from the water outlet pipe. At this time, the booster spring becomes inclined and provides an upward thrust to the sealed shell. The piston body is suspended above the water outlet pipe due to the buoyancy and the booster spring, and the water outlet pipe continues to discharge water.

[0026] When the buoyancy of the buoyancy piston plus the upward force of the assisting spring is less than the sum of the elastic force of the return spring and the gravity of the buoyancy piston, the piston body re-closes the water outlet pipe under the action of the return spring. During this process, the angle between the assisting spring and the horizontal plane gradually decreases and eventually returns to a horizontal position.

[0027] Preferably, the pressure water output assembly comprises a duckbill-shaped nozzle, the top end of the nozzle is connected to the bottom end of the water outlet pipe via an integrally formed transition pipe body, and the bottom end of the nozzle is inclined toward one side of the water flow direction in the sedimentation tank.

[0028] Preferably, the pressure water output assembly includes a cubic pressure water tank, the top of which is connected to the bottom of the water outlet pipe, and a plurality of water spray pipes are arranged in a matrix at the bottom of the pressure water tank. The width of the pressure water tank matches the width of the bottom of the sedimentation tank, and the length of the pressure water tank is the same as the length of the cover plate.

[0029] Preferably, the drainage construction method includes the following:

[0030] S1, the external water source flows into the shell through the filter hole. As the water accumulates in the shell, the buoyancy of the buoyancy piston gradually increases. When the buoyancy reaches a certain level, the piston body separates from the water outlet pipe, the water outlet pipe opens, and the water in the shell is sprayed out from the water outlet pipe;

[0031] S2, in the above process, the booster spring provides an upward thrust to the sealing housing. At this time, although the buoyancy of the buoyancy piston is less than the sum of the elastic force of the return spring and its own weight as the water level drops, the piston body is still kept above the water outlet pipe due to the thrust of the booster spring, until the sum of the elastic force of the return spring plus the weight of the buoyancy piston is greater than the sum of the buoyancy of the buoyancy piston and the longitudinal thrust provided by the booster spring, the piston body begins to descend and closes the water outlet pipe;

[0032] S3, then as the water flows in from the filter hole, water continues to accumulate in the shell; and the water discharged from the outlet pipe, in one case, directly washes the bottom of the sedimentation tank through the duckbill nozzle;

[0033] S4, the duckbill-shaped nozzles under the cover plates flush the stones and silt out along the slope of the bottom of the sedimentation tank; in another case, the water discharged from the water outlet pipe enters the pressure water tank, and the pressure water is used to flush the bottom of the sedimentation tank opposite to the cover plate through the several water spraying pipes at the bottom of the pressure water tank, and the flushing water, together with the stones and silt, is also discharged out through the slope of the bottom of the sedimentation tank;

[0034] S4, when the bottom of the sedimentation tank is impacted by water flow, the impact force exerted on the bottom of the tank by the change of flow velocity is different, and the vibration spring is compressed to different degrees. The vibration spring is reset due to its own elastic force, and the vibration effect of the sedimentation tank is achieved in cooperation with the impact of water flow, so that the stones and silt on the bottom of the tank are loosened and discharged along the slope under the action of water flow;

[0035] S5, the sedimentation tank is used to settle the gravel and silt in the water. When the water level is higher than the overflow hole, the water flows out after being filtered by the filter screen at the overflow hole, enters between the sedimentation tank and the bottom of the drainage ditch body, and flows into the water storage tank through the recycled water diversion channel, the outlet, and the pipeline.

[0036] The filtering type airport drainage construction system of the present invention has the following beneficial effects:

[0037] The present invention is provided with a pressure water generating mechanism which can convert the water source flowing in from the outside into pressure water to spray to the bottom of the sedimentation tank, thereby forming an impact force, which can separate the sediment at the bottom of the tank from the bottom of the tank and discharge it to the outside. The sedimentation tank can be specially settling for the water source from the outside, and it is also a channel for discharging the sediment. The vibration mechanism of the sedimentation tank is combined with the impact of the pressure water to complete the self-cleaning of the drainage ditch body. In addition, through the steps of pressure water generation, pressure water flushing of the bottom of the sedimentation tank, and recycling of excess filtered water, the effect of self-cleaning of the drainage ditch body without manual power is achieved, which can greatly save labor and avoid the safety risks of airport use caused by the blockage of the drainage ditch body by the sediment. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 , a schematic cross-sectional view of the present invention;

[0039] Figure 2 , a further cross-sectional structural schematic diagram of the present invention;

[0040] Figure 3 , a schematic diagram of the top view of the structure of the present invention;

[0041] Figure 4 , a schematic diagram of the structure of the pressure water generating mechanism of the present invention from a top view;

[0042] Figure 5 , a schematic diagram of flushing the bottom of a sedimentation tank by an embodiment of the pressure water generating mechanism of the present invention;

[0043] Figure 6 , a schematic structural diagram of an embodiment of the pressure water generating mechanism of the present invention having a pressure water tank.

[0044] Figure 7 , a schematic diagram of the structure of the pressure water tank of the present invention when viewed from above.

[0045] Figure 8 , a schematic structural diagram of the buoyancy piston of the present invention provided with a booster spring.

[0046] 1: drainage ditch body, 2: sedimentation tank, 3: support platform, 4: cover plate, 41: filter hole, 5, pressure water generating mechanism; 51, connecting edge; 52, shell; 53, water outlet pipe; 54, spray pipe; 55, pressure water tank; 56, spray pipe; 6: sleeve, 7: guide rod, 8: vibration spring, 9: embedded screw, 10: nut, 11: connecting plate, 12: pipeline, 13: overflow hole, 14: filter net, 15: piston body, 16: fixing block, 17: connecting rod, 18: sealing shell, 19: sliding hole, 20: sliding rod; 21: reset spring, 22: slot, 23: water outlet; 24, recovery water diversion channel; 25, booster spring. DETAILED DESCRIPTION

[0047] The following describes in detail the implementation mode of the present invention in a step-by-step manner. The description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0048] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the purpose of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore cannot be understood as a limitation on the present invention.

[0049] Example 1

[0050] A filtering airport drainage construction system includes an airport filtering drainage ditch and a drainage construction method. Figure 1-8 As shown, it includes a drainage ditch body 1, a cover plate 4, a pressure water generating mechanism 5, and a sedimentation tank 2. The top of the drainage ditch body 1 is provided with a cover plate 4, and a plurality of filtering holes 41 are arranged on the cover plate 4. The inner wall of the drainage ditch body 1 is connected to the sedimentation tank 2 with the same direction as the drainage ditch body 1, and the sedimentation tank 2 is connected to the inner wall of the drainage ditch body 1 through a vibration mechanism.

[0051] The bottom end of the cover plate 4 is connected to a pressure water generating mechanism, which is used to receive the water source entering through the filter hole 41 and process it into pressure water to spray into the sedimentation tank 2, and realize self-cleaning of the sediment by flushing the bottom of the sedimentation tank 2. A plurality of overflow holes 13 are evenly distributed on the top of the side wall of the sedimentation tank 2. A recovery water diversion channel 24 is formed between the bottom of the sedimentation tank 2 and the bottom of the drainage ditch body 1. The bottom of the drainage ditch body 1 is also evenly distributed with water outlets 23, and the water outlets 23 are connected to the water reservoir through the pipe 12 pre-buried in the soil.

[0052] In this embodiment, a pressure water generating mechanism is provided to convert the water source flowing in from the outside into pressure water which is sprayed to the bottom of the sedimentation tank, thereby forming an impact force, which can separate the sludge at the bottom of the tank from the bottom of the tank and discharge it to the outside. The sedimentation tank is provided to specifically carry out sedimentation treatment for the water source from the outside, and it is also a channel for discharging the sludge. The vibration mechanism of the sedimentation tank is combined with the impact of the pressure water to complete the self-cleaning of the drainage ditch body, and the excess water in the sedimentation tank enters the recycled water diversion channel 24 and is stored in the reservoir for use in other water use occasions, such as greening water and fire fighting water at the airport.

[0053] Example 2

[0054] Based on Example 1, this embodiment discloses: Figure 1 , 2 As shown, the cross-section of the drainage ditch body 1 is an inverted trapezoidal structure, and the inner sides of the two top ends of the drainage ditch body 1 are respectively provided with card grooves 22 along the length direction, and the two ends of the cover plate 4 are snap-connected with the card grooves 22, and the cover plate 4 is provided with a plurality of filter holes 41 arranged in a matrix.

[0055] like Figure 1-3 As shown, the two inner walls of the drainage ditch body 1 are integrally formed with a base 3, and the tops of the two bases 3 are at the same height. The cross-section of the sedimentation trough 2 is a rectangular structure, and the tops of the two ends of the sedimentation trough 2 are integrally formed with an outwardly folded connecting plate 11, and a number of vibration mechanisms are connected between the bottom end of the connecting plate 11 and the top of the base 3.

[0056] Example 3

[0057] Based on Embodiments 1 and 2, this embodiment discloses: Figure 1 As shown, the vibration mechanism includes a sleeve 6 fixedly arranged on the upper end of the base 3 along the longitudinal direction, a guide rod 7 is slidably connected inside the sleeve 6, the top end of the guide rod 7 is fixedly connected to the lower end of the connecting plate 11, and a vibration spring 8 is provided between the connecting plate 11 and the top end of the sleeve 6 and on the outer sleeve of the guide rod 7.

[0058] The vibration spring 8 is used to cooperate with the pressure water generating mechanism to make the sedimentation tank 2 vibrate. When the pressure water impacts the bottom of the sedimentation tank 2, the vibration spring 8 is subjected to the impact force brought by the bottom of the sedimentation tank 2. Under the combined action of the vibration spring 8 and the pressure water impact, the sedimentation tank 2 vibrates with the expansion and contraction of the vibration spring, and the fine stone particles or soil deposits on the bottom of the sedimentation tank 2 are loosened by vibration, and are washed away with the water flow after loosening.

[0059] Example 4

[0060] Based on embodiments 1, 2, and 3, this embodiment discloses: Figure 1 , 2 As shown in FIGS. 3 and 8 , the pressure water generating mechanism 5 comprises a shell 52 in the shape of an inverted quadrangular pyramid, the top of the shell 52 is provided with an outwardly folded connecting edge 51, and the bottom end of the cover plate 4 is provided with four embedded screws 9 in a rectangular shape.

[0061] A through hole is opened on the connecting edge 51 to cooperate with the embedded screw 9, and the embedded screw 9 passes through the through hole and is locked by the nut 10. The upper port of the shell 52 surrounds all the filter holes 41, and the lower port of the shell 52 is connected to a cylindrical water outlet pipe 53. The bottom end of the water outlet pipe 53 is connected to a pressurized water output component, and a buoyancy piston cooperating with the water outlet pipe 53 is provided in the shell 52.

[0062] The buoyancy piston includes a piston body 15, which cooperates with the inner wall of the water outlet pipe 53 and is used to close the water outlet pipe 53. The top of the piston body 15 is connected to a connecting rod 17 through a fixing block 16. The bottom end of the connecting rod 17 is fixedly connected to the middle of the top of the fixing block 16. The top of the connecting rod 17 is fixedly connected to a sealing shell 18. The top of the sealing shell 18 has four sliding rods 20 arranged in a rectangular shape ( Figure 2The first two slide bars are drawn), the slide bar 20 is arranged in the longitudinal direction, a slide hole 19 is provided at the bottom of the cover plate 4 opposite to the slide bar 20, the slide bar 20 is slidably connected to the slide hole 19, and a return spring 21 is provided between the lower end of the slide hole 19 and the top of the sealing shell 18 and on the outer sleeve of the slide bar 20.

[0063] The piston body 15 is made of rubber material, the fixed block 16 is made of buoyancy material or the fixed block is a hollow shell light structure, the sealed shell 18 is filled with buoyancy material (such as foam sponge), when the fixed block 16 is made of buoyancy material, the bottom end of the connecting rod 17 penetrates the fixed block and is fixedly connected to the fixed block 16 and the top of the piston body 15 at the same time; the outer periphery of the sealed shell 18 is also provided with a plurality of assist springs 25 (such as Figure 8 As shown), the two ends of the assist spring 25 are connected to the outer wall of the sealing shell 18 and the inner wall of the shell 52 respectively.

[0064] Under the action of the return spring 21, when the piston body 15 cooperates with the inner wall of the water outlet pipe 53, the booster spring 25 is in a horizontal position. Figure 8 As shown, at this time, there is no upward or downward force on the piston body. When the water in the housing 52 accumulates to a set height, the buoyancy overcomes the elastic force of the return spring 21 and the gravity of the buoyancy piston, so that the piston body 15 floats upward and separates from the water outlet pipe 53. At this time, the assisting spring 25 changes to an inclined posture and provides an upward thrust to the sealing housing 18.

[0065] The piston body 15 is suspended above the water outlet pipe 53 due to the buoyancy and the assisting spring 25. At this time, the water outlet pipe 53 continues to discharge water. When the buoyancy of the buoyancy piston plus the upward force of the assisting spring is less than the sum of the elastic force of the return spring and the gravity of the buoyancy piston, the piston body 15 re-closes the water outlet pipe 53 under the action of the return spring. During this process, the angle between the assisting spring 25 and the horizontal plane gradually decreases and finally returns to a horizontal posture.

[0066] In this embodiment, in order to generate a water flow with a certain pressure, a large amount of water must be sprayed out quickly through the nozzle or water spray pipe, so as to overcome the adhesion between the silt and the bottom of the sedimentation tank and wash away the silt; and the water in the commonly used drainage tank naturally falls from the filter hole, which is difficult to have such a force. To achieve the self-cleaning effect, the pressure of the water flow must be adjusted. The present invention blocks the water outlet pipe at the bottom of the shell by setting a buoyancy piston. At this time, the water from all the filter holes of the same cover plate flows into the shell. When the buoyancy reaches a certain level, the buoyancy piston can be opened.

[0067] On the other hand, since the outlet pipe drains water very quickly, the buoyancy piston will be quickly reset due to the elastic force of the reset spring, resulting in a large amount of water being unable to continue to be discharged through the outlet pipe. Therefore, a booster spring is provided so that the piston body can remain above the outlet pipe for a certain period of time, that is, the outlet pipe is continuously opened until the water in the shell is drained to a certain extent, and the certain extent includes the emptying situation, at which time the buoyancy of the buoyancy piston is reduced to 0. At the same time, the sum of the elastic force of the reset spring and the gravity of the buoyancy piston is greater than the upward thrust of the booster spring, and the piston body is reset. Of course, it can also be a state of partially emptying the shell, that is, the sum of the buoyancy plus the upward elastic force of the booster spring is less than the sum of the elastic force of the reset spring and the gravity of the buoyancy piston. At this time, the piston body will also gradually enter the drain pipe to block the drain pipe.

[0068] Example 5

[0069] Based on embodiments 1, 2, 3, and 4, this embodiment discloses: Figure 4 , 5 As shown, the pressure water output assembly includes a duckbill type nozzle 54, the top of the nozzle 54 is connected to the bottom of the water outlet pipe 53 through an integrally formed transition pipe body, and the bottom of the nozzle is inclined toward one side of the water flow direction in the sedimentation tank, as shown in FIG. Figure 5 As shown, the water flow ejected from the nozzle has a strong impact on the silt at the bottom of the sedimentation tank, and the silt is continuously discharged along with the water flow.

[0070] Example 6

[0071] Based on embodiments 1, 2, 3, and 4, this embodiment discloses: Figure 6 , 7 As shown, the pressure water output assembly includes a cubic pressure water tank 55, the top of which is connected to the bottom of the water outlet pipe 53, and the bottom of the pressure water tank 55 is arranged in a matrix with a plurality of water spray pipes 56. The width of the pressure water tank 55 matches the width of the bottom of the sedimentation tank 2, and the length of the pressure water tank 55 is the same as the length of the cover plate 4. The purpose of such arrangement is to achieve full flushing of the bottom of the tank relative to the bottom of the cover plate. Based on the prior art, it can be known that there are several cover plates, which are sequentially connected to the top of the drainage tank body, and it can be understood that this embodiment can achieve pressure water flushing in the full range of the bottom of the tank.

[0072] Example 7

[0073] Based on the above embodiments, this embodiment discloses a drainage construction method for an airport filter drainage ditch, such as Figure 1-8 As shown, including:

[0074] The external water source flows into the shell 52 through the filter hole 41. As the water accumulates in the shell 52, the buoyancy of the buoyancy piston gradually increases. When the buoyancy reaches a certain level, the piston body 15 is separated from the water outlet pipe, the water outlet pipe 53 is opened, and the water in the shell 52 is sprayed out from the water outlet pipe 53. In this process, the booster spring 25 provides an upward thrust to the sealed shell 18. At this time, although the buoyancy of the buoyancy piston is less than the sum of the elastic force of the return spring and its own weight as the water level drops.

[0075] However, due to the thrust of the booster spring, the piston body 15 remains above the water outlet pipe 53 until the sum of the elastic force of the return spring 21 and the weight of the buoyancy piston is greater than the sum of the buoyancy of the buoyancy piston and the longitudinal thrust provided by the booster spring 25. The piston body 15 then begins to descend and close the water outlet pipe 53. Then, as water flows in from the filter hole 41, water continues to accumulate in the shell 52.

[0076] The water discharged from the outlet pipe 53 can, in one case, be directly used to flush the bottom of the sedimentation tank 2 through the duckbill nozzle 54. The duckbill nozzles 54 under the cover plates 4 flush the gravel and silt outward along the slope of the bottom of the sedimentation tank 2. In another case, the water discharged from the outlet pipe 53 enters the pressure water tank 55, and the bottom of the sedimentation tank 2 opposite to the cover plate 4 is flushed with pressure water through the several water spraying pipes 56 at the bottom of the pressure water tank 55. The flushing water, together with the gravel and silt, is also discharged outward through the slope of the bottom of the sedimentation tank 2.

[0077] When the bottom of the sedimentation tank 2 is impacted by water flow, the impact force exerted on the bottom of the tank by the water flow changes due to the change in flow velocity, and thus the vibration spring 21 is compressed to different degrees. The vibration spring 21 is reset due to its own elastic force, and the vibration effect of the sedimentation tank 2 is achieved in cooperation with the impact of the water flow, so that the stones and silt on the bottom of the tank are loosened and discharged along the slope under the action of the water flow.

[0078] The sedimentation tank 2 is used to settle the gravel and silt in the water. When the water level is higher than the overflow hole 13, the water is filtered through the filter screen 14 at the overflow hole and flows out, enters between the sedimentation tank 2 and the bottom of the drainage ditch body 1, and flows into the water storage tank through the recycled water diversion channel, the outlet, and the pipeline.

[0079] The drainage ditch body of the present invention is preferably a reinforced concrete structure, and the sedimentation tank is preferably a stainless steel structure. The present invention achieves the effect of self-cleaning the drainage ditch body without manual power through the above arrangement, which can greatly save labor and avoid the safety risk of airport use caused by clogging of the drainage ditch body by sediment.

Claims

1. A filtering airport drainage construction system, characterized in that: It includes an airport filter drainage ditch and a drainage construction method. The airport filter drainage ditch includes a drainage ditch body, a cover plate, a pressure water generating mechanism, and a sedimentation tank; A cover plate is provided at the top of the drainage ditch body, and a plurality of filter holes are arranged on the cover plate. The inner wall of the drainage ditch body is connected to a sedimentation tank with the same direction as the drainage ditch body; The sedimentation tank is connected to the inner wall of the drainage ditch body through a vibration mechanism, and the bottom end of the cover plate is connected to a pressure water generating mechanism, which is used to receive the water source entering the filter hole and process it into pressure water and spray it into the sedimentation tank, so as to achieve self-cleaning of the sediment by flushing the bottom of the sedimentation tank; A plurality of overflow holes are evenly distributed on the top of the side wall of the sedimentation tank, a diversion channel for recycled water is formed between the bottom of the sedimentation tank and the bottom of the drainage ditch body, and water outlets are evenly distributed at the bottom of the drainage ditch body, and the water outlets are connected to the water reservoir through pipes pre-buried in the soil; The vibration mechanism comprises a sleeve and a guide rod slidably connected to the sleeve; the pressure water generating mechanism comprises a shell in an inverted quadrangular pyramid structure, and the top of the shell is provided with a connecting edge folded outwards.

2. A filtering airport drainage construction system as claimed in claim 1, characterized in that: The cross section of the drainage ditch body is an inverted trapezoidal structure. The inner sides of the two top ends of the drainage ditch body are respectively provided with slots along the length direction. The two ends of the cover plate are connected with the slots. The cover plate is provided with a plurality of filter holes arranged in a matrix.

3. A filtering airport drainage construction system as claimed in claim 1, characterized in that: The two inner walls of the drainage ditch body are integrally formed with a pedestal, and the tops of the two pedestals are at the same height. The cross-section of the sedimentation trough is a rectangular structure, and the tops of the two ends of the sedimentation trough are integrally formed with outwardly folded connecting plates, and a number of vibration mechanisms are connected between the bottom end of the connecting plate and the top of the pedestal.

4. A filtering airport drainage construction system as claimed in claim 3, characterized in that: The vibration mechanism includes a sleeve fixedly arranged on the upper end of the support platform in the longitudinal direction, the top end of the guide rod is fixedly connected to the lower end of the connecting plate, and a vibration spring is arranged between the connecting plate and the top end of the sleeve and on the outer sleeve of the guide rod; The vibration spring is used to cooperate with the pressure water generating mechanism to make the sedimentation tank vibrate. When the pressure water impacts the bottom of the sedimentation tank, the vibration spring is subjected to the impact force brought by the bottom of the sedimentation tank. Under the combined action of the vibration spring and the pressure water impact, the sedimentation tank is vibrated with the expansion and contraction of the vibration spring, and the fine stone particles or soil deposits on the bottom of the sedimentation tank are loosened by vibration, and are washed away with the water flow after loosening.

5. A filtering airport drainage construction system as claimed in claim 4, characterized in that: The bottom end of the cover plate is provided with four embedded screws arranged in a rectangular shape, and the connecting edge is provided with through holes matched with the embedded screws, and the embedded screws pass through the through holes and are locked by nuts; The upper port of the shell surrounds all the filter holes, the lower port of the shell is connected to a cylindrical water outlet pipe, and the bottom end of the water outlet pipe is connected to a pressure water output assembly; The housing is provided with a buoyancy piston matched with the water outlet pipe, the buoyancy piston includes a piston body, the piston body matches with the inner wall of the water outlet pipe and is used to close the water outlet pipe, the top of the piston body is connected with a connecting rod through a fixing block, and the bottom end of the connecting rod is fixedly connected to the middle of the top of the fixing block; The top of the connecting rod is fixedly connected to a sealing shell, and four sliding rods are arranged in a rectangular shape at the top of the sealing shell. The sliding rods are arranged in the longitudinal direction, and a sliding hole is provided at the bottom of the cover plate opposite to the sliding rod. The sliding rod is slidably connected to the sliding hole, and a return spring is provided between the lower end of the sliding hole and the top of the sealing shell and located on the outer sleeve of the sliding rod; The piston body is made of rubber material, the fixed block is made of buoyancy material or the fixed block is a hollow shell lightweight structure, the sealed shell is filled with buoyancy material, and when the fixed block is made of buoyancy material, the bottom end of the connecting rod penetrates the fixed block and is fixedly connected to the fixed block and the top of the piston body at the same time; A plurality of assisting springs are also arranged on the outer periphery of the sealing shell, and two ends of the assisting springs are respectively connected to the outer wall of the sealing shell and the inner wall of the shell.

6. A filtering airport drainage construction system as claimed in claim 5, characterized in that Under the action of the return spring, when the piston body cooperates with the inner wall of the water outlet pipe, the booster spring is in a horizontal posture, and there is no upward or downward force on the piston body; When the water in the shell accumulates to a set height, the buoyancy overcomes the elastic force of the return spring and the gravity of the buoyancy piston, causing the piston body to float upward and detach from the water outlet pipe. At this time, the booster spring becomes inclined and provides an upward thrust to the sealed shell. The piston body is suspended above the water outlet pipe due to the buoyancy and the booster spring, and the water outlet pipe continues to discharge water. When the buoyancy of the buoyancy piston plus the upward force of the assisting spring is less than the sum of the elastic force of the return spring and the gravity of the buoyancy piston, the piston body re-closes the water outlet pipe under the action of the return spring. During this process, the angle between the assisting spring and the horizontal plane gradually decreases and eventually returns to a horizontal position.

7. A filtering airport drainage construction system as claimed in claim 6, characterized in that: The pressure water output assembly includes a duckbill nozzle, the top of the nozzle is connected to the bottom of the water outlet pipe through an integrally formed transition pipe body, and the bottom of the nozzle is inclined to one side of the water flow direction in the sedimentation tank.

8. A filtering airport drainage construction system as claimed in claim 7, characterized in that: The pressure water output component includes a cubic pressure water tank, the top of which is connected to the bottom of the water outlet pipe, and a plurality of water spray pipes are arranged in a matrix at the bottom of the pressure water tank. The width of the pressure water tank matches the width of the bottom of the sedimentation tank, and the length of the pressure water tank is the same as the length of the cover plate.

9. A filtering airport drainage construction system as claimed in claim 8, characterized in that: Drainage construction methods include the following: S1, the external water source flows into the shell through the filter hole. As the water accumulates in the shell, the buoyancy of the buoyancy piston gradually increases. When the buoyancy reaches a certain level, the piston body separates from the water outlet pipe, the water outlet pipe opens, and the water in the shell is sprayed out from the water outlet pipe; S2, in the above process, the booster spring provides an upward thrust to the sealing housing. At this time, although the buoyancy of the buoyancy piston is less than the sum of the elastic force of the return spring and its own weight as the water level drops, the piston body is still kept above the water outlet pipe due to the thrust of the booster spring, until the sum of the elastic force of the return spring plus the weight of the buoyancy piston is greater than the sum of the buoyancy of the buoyancy piston and the longitudinal thrust provided by the booster spring, the piston body begins to descend and closes the water outlet pipe; S3, then as the water flows in from the filter hole, water continues to accumulate in the shell; and the water discharged from the outlet pipe, in one case, directly washes the bottom of the sedimentation tank through the duckbill nozzle; S4, the duckbill-shaped nozzles under the cover plates flush the stones and silt out along the slope of the bottom of the sedimentation tank; in another case, the water discharged from the water outlet pipe enters the pressure water tank, and the pressure water is used to flush the bottom of the sedimentation tank opposite to the cover plate through the several water spraying pipes at the bottom of the pressure water tank, and the flushing water, together with the stones and silt, is also discharged out through the slope of the bottom of the sedimentation tank; S4, when the bottom of the sedimentation tank is impacted by water flow, the impact force exerted on the bottom of the tank by the change of flow velocity is different, and the vibration spring is compressed to different degrees. The vibration spring is reset due to its own elastic force, and the vibration effect of the sedimentation tank is achieved in cooperation with the impact of water flow, so that the stones and silt on the bottom of the tank are loosened and discharged along the slope under the action of water flow; S5, the sedimentation tank is used to settle the gravel and silt in the water. When the water level is higher than the overflow hole, the water flows out after being filtered by the filter screen at the overflow hole, enters between the sedimentation tank and the bottom of the drainage ditch body, and flows into the water storage tank through the recycled water diversion channel, the outlet, and the pipeline.

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