Intercepting well using flexible intercepting device

Abstract

The invention provides an intercepting well using a flexible intercepting device. The intercepting well comprises a well body, a water inlet pipe, a water drainage pipe, a pollution discharge device, a filtering device and a backwashing device, the filter device comprises a mounting cover, a first filter plate, a mounting frame, a lifting cylinder and a backwashing device, and the backwashing device is suspended above the first filter plate. According to the intercepting well using the flexible intercepting device, when the part, for filtering water flow, of the first filter plate is blocked, the first filter plate is lifted by the lifting cylinder at the moment, so that the upper filtering part moves upwards to be staggered from the water flow, and the lower part of the first filter plate filters impurities in the entering water flow at the moment; meanwhile, in the upward moving process of the first filter plate, the backwashing device sprays water flow to the first filter plate to wash off impurities attached to the first filter plate, and the lifting cylinder lifts the first filter plate, so that the position of the first filter plate can be adjusted, and the upper filtering part of the first filter plate is comprehensively washed.

Description

Technical Field

[0001] The invention relates to the field of interception wells, and in particular to an interception well using a flexible interception device. Background Art

[0002] An interception well is a special structure used in a combined sewer system. Its main function is to intercept dry-flow sewage and initial rainwater from entering the sewage pipe and ensure smooth drainage of rainwater within the designed flow range.

[0003] In the prior art, the interception well is mainly composed of an installation cylinder, an inlet pipe, a drainage pipe, a sewage pipe, a gate, an inlet grille, a sensor, and a control system. When it is sunny or the amount of rain is small, the drainage pipe is closed, and the sewage enters the installation cylinder through the inlet pipe and is transported to the sewage treatment plant by the sewage pipe. When the rainfall is large, the sewage pipe draws out the turbid sewage in the early stage, and then the sewage pipe is closed and the drainage pipe is opened, and the rainwater is discharged from the drainage pipe; the inlet grille filters the larger impurities in the sewage or rainwater entering the installation cylinder. Since there may be impurities such as mud, leaves, and plastic bags in the incoming water flow, some of the water inlet holes of the inlet grille may be blocked during the filtration process, thereby affecting the drainage efficiency;

[0004] Among them, the gate is used to seal the sewage pipes and drainage pipes. Compared with the flexible intercepting device, the gate is currently in use. It is easy to rust and corrode due to long-term contact with sewage and rainwater. It requires frequent maintenance and anti-corrosion treatment. It is affected by the impact of water flow and collision of debris. It may be deformed after long-term use, resulting in problems such as poor sealing.

[0005] Therefore, it is necessary to provide an interception well using a flexible interception device to solve the above technical problems. Summary of the invention

[0006] The present invention provides an interception well using a flexible interception device, which solves the problem that part of the water inlet holes of the water inlet grid may be blocked in the process of filtering water flow in the existing interception well, thereby affecting the drainage efficiency.

[0007] In order to solve the above technical problems, the present invention provides an interception well using a flexible interception device, comprising: a well body, a water inlet pipe, a drainage pipe, a sewage discharge device, a filtering device and a backwashing device;

[0008] The water inlet pipe and the drainage pipe are respectively installed on both sides of the well body, and the sewage discharge device is installed on the well body;

[0009] The filtering device comprises a mounting cover, a first filter plate, a mounting frame and a lifting cylinder, wherein the mounting cover is mounted on the inner wall of the well body, one end of the water inlet pipe is located inside the mounting cover, the first filter plate is slidably mounted inside the mounting cover, and the first filter plate is located on one side of the water inlet pipe, the lifting cylinder is mounted inside the well body through the mounting frame and is located above the first filter plate, the output end of the lifting cylinder is connected to the first filter plate, and the length of the first filter plate is greater than the diameter of the water inlet pipe;

[0010] A backwashing device is suspended above the first filter plate, and a water outlet of the backwashing device faces the first filter plate.

[0011] Preferably, the sewage discharge device includes a sewage main pipe, a sewage branch pipe, a water pump and a connecting pipe. The sewage main pipe is installed through the well body, one end of the sewage branch pipe is connected to the input end of the water pump, and the other end is spaced from the bottom of the well body. The connecting pipe connects the output end of the water pump and the sewage main pipe.

[0012] Preferably, the backwash device includes a water pipe, a water spray pipe and a switching device, one end of the water pipe is connected to the connecting pipe through the switching device, the water spray pipe is transversely connected to the other end of the water pipe, the switching device connects the connecting pipe and the water pipe, the switching device is used to control the connection state between the water pipe and the connecting pipe, and the sewage discharge device also includes a valve, which is connected to the connecting pipe and is located between the switching device and the sewage discharge main pipe.

[0013] Preferably, the switching device includes a mounting shell, an adjusting cylinder and a sealing plate, the mounting shell is mounted on the connecting pipe, a water outlet hole is opened on the connecting pipe, a water inlet of the mounting shell is connected to the water outlet hole, the adjusting cylinder is mounted on the mounting shell, the sealing plate is mounted at the output end of the adjusting cylinder and seals the water outlet hole, and the water pipe is connected to the water outlet of the mounting shell.

[0014] Preferably, the switching device also includes a second filter plate, which is installed at the bottom end of the blocking plate. When the regulating cylinder lifts the blocking plate to be offset from the water outlet, the blocking plate drives the second filter plate to cover the water outlet.

[0015] Preferably, the switching device further comprises a baffle, which is vertically mounted on the second filter plate, and when the second filter plate covers the water outlet, the top of the baffle is flush with the bottom of the inner wall of the water pipe.

[0016] Preferably, the cross-section of the water outlet of the water spray pipe is set to be trapezoidal.

[0017] Preferably, the filtering device further comprises a guide block, which is mounted on the first filter plate and located below the water inlet pipe.

[0018] Preferably, the intercepting well using a flexible intercepting device also includes a flexible intercepting device, and the flexible intercepting device is installed on the drain pipe. The flexible intercepting device includes a mounting tube, a mounting plate, a sac, a sealing ring, two fixed covers and an end cover, the two end covers are installed at both ends of the mounting tube, one fixed cover is correspondingly arranged with one end cover, and an installation gap is formed between the fixed cover and the end cover, the sac is installed inside the mounting tube, and both ends of the sac are provided with flanges, and the two flanges extend into the interior of the two installation gaps respectively, and then the fixed cover is installed with the corresponding end cover through a fixing piece, and the mounting plate is installed on one fixed cover, and an inflation gap is left between the sac and the mounting tube, a sealing ring is arranged between the mounting plate and the fixed cover, and a protrusion is arranged in the middle of the sac.

[0019] Preferably, the intercepting well using the flexible intercepting device further comprises a supporting device, and the supporting device is used to support the flexible intercepting device.

[0020] Compared with the related art, the interception well using the flexible interception device provided by the present invention has the following beneficial effects:

[0021] The present invention provides an interception well using a flexible interception device. When the rainfall is heavy, the water flow entering the well body needs to be discharged in time through a drainage pipe. The first filter plate filters impurities in the incoming water flow. Figure 5 In the initial state, the upper part of the first filter plate mainly filters the water flow. When the part of the first filter plate that filters the water flow is blocked, the lifting cylinder lifts the first filter plate to move the upper filtering part upward and staggered with the water flow. The lower part of the first filter plate now filters the impurities in the incoming water flow. At the same time, during the process of the first filter plate moving upward, the backwashing device sprays water toward the first filter plate. Figure 6 , the impurities attached to the first filter plate are washed down, and the lifting cylinder lifts the first filter plate, the position of the first filter plate can be adjusted, and the upper filtering part of the first filter plate is fully washed. After the washing is completed, the lifting cylinder lowers the first filter plate to the starting height, and the upper part of the cleaned first filter plate filters the water flow again to ensure the drainage effect, and during the cleaning process, the first filter plate can always maintain the filtering function. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of a preferred embodiment of an interception well using a flexible interception device provided by the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure inside the well body shown;

[0024] Figure 3 A schematic diagram of the structure of the switching device provided by the present invention;

[0025] Figure 4 A schematic diagram of the second filter plate provided by the present invention covering the water outlet;

[0026] Figure 5 for Figure 2 A front view of an interception well using a flexible interception device is shown;

[0027] Figure 6 A schematic diagram of a backwashing device provided by the present invention for flushing a first filter plate;

[0028] Figure 7 The intention of equipping the water inlet pipe and the drain pipe provided by the present invention with a flexible interception device;

[0029] Figure 8 A schematic diagram of a flexible shut-off device provided by the present invention;

[0030] Fig. 9 A cross-sectional view of the flexible shut-off device provided by the present invention;

[0031] Fig.10 for Fig. 9 The enlarged schematic diagram of the middle A part;

[0032] Fig.11 A principle block diagram of an interception well using a flexible interception device provided by the present invention.

[0033] Numbers in the figure:

[0034] 1. Well body;

[0035] 2. Water inlet pipe;

[0036] 3. Drain pipe;

[0037] 4. Sewage discharge device; 41. Sewage discharge main pipe; 42. Sewage discharge branch pipe; 43. Water pump; 44. Connecting pipe; 45. Valve; 441. Water outlet;

[0038] 5. Filter device; 51. Mounting cover; 52. First filter plate; 53. Mounting frame; 54. Lifting cylinder; 55. Guide block;

[0039] 6. Backwash device; 61. Water delivery pipe; 62. Water spray pipe; 63. Switching device;

[0040] 631, mounting shell; 632, adjusting cylinder; 633, blocking plate; 634, second filter plate; 635, baffle plate;

[0041] 7. Flexible intercepting device; 71. Mounting tube; 72. Fixed cover; 73. End cover; 74. Mounting plate; 75. Capsule; 76. Sealing ring;

[0042] 721, backstop component, 722, flat groove; 731, tooth groove; 741, limit component, 751, flange; 752, protrusion;

[0043] 8. Support device. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] The invention provides an interception well using a flexible interception device.

[0046] Please refer to Figure 1 to Figure 2 In one embodiment of the present invention, the interception well using the flexible interception device comprises: a well body 1, a water inlet pipe 2, a drainage pipe 3, a sewage discharge device 4, a filtering device 5 and a backwashing device 6;

[0047] The water inlet pipe 2 and the drainage pipe 3 are respectively installed on both sides of the well body 1, and the sewage discharge device 4 is installed on the well body 1;

[0048] The filtering device 5 includes a mounting cover 51, a first filter plate 52, a mounting frame 53 and a lifting cylinder 54. The mounting cover 51 is mounted on the inner wall of the well body 1. One end of the water inlet pipe 2 is located inside the mounting cover 51. The first filter plate 52 is slidably mounted inside the mounting cover 51, and the first filter plate 52 is located on one side of the water inlet pipe 2. The lifting cylinder 54 is mounted inside the well body 1 through the mounting frame 53 and is located above the first filter plate 52. The output end of the lifting cylinder 54 is connected to the first filter plate 52. The length of the first filter plate 52 is greater than the diameter of the water inlet pipe 2.

[0049] The backwashing device 6 is suspended above the first filter plate 52 , and a water outlet of the backwashing device 6 faces the first filter plate 52 .

[0050] When the rainfall is heavy, the water flow entering the well body 1 needs to be discharged in time through the drainage pipe 3. The first filter plate 52 filters the impurities in the incoming water flow. Figure 5In the initial state, the upper part of the first filter plate 52 mainly filters the water flow. When the part of the first filter plate 52 filtering the water flow is blocked, the lifting cylinder 54 lifts the first filter plate 52 to move the upper filtering part upward and staggered with the water flow. The lower part of the first filter plate 52 filters the impurities in the incoming water flow. At the same time, during the upward movement of the first filter plate 52, the backwashing device 6 sprays water toward the first filter plate 52. Figure 6 , the impurities attached to the first filter plate 52 are washed off, and the lifting cylinder 54 lifts the first filter plate 52, the position of the first filter plate 52 can be adjusted, and the upper filtering part of the first filter plate 52 is fully rinsed. After the rinsing is completed, the lifting cylinder 54 lowers the first filter plate 52 to the starting height, and the upper part of the cleaned first filter plate 52 filters the water flow again to ensure the drainage effect, and during the cleaning process, the first filter plate 52 can always maintain the filtering function.

[0051] Among them, during the backwashing process, the lifting cylinder 54 can drive the first filter plate 52 to move up and down multiple times, perform multiple flushing, and improve the cleaning effect. When the first filter plate 52 is lifted to the maximum, the lower part of the first filter plate 52 is always in a state of filtering the water flow.

[0052] See also Figure 1 The top of the mounting cover 51 and the side facing the water inlet pipe 2 are opened, and the upper part of the side away from the water inlet pipe 2 is opened. During the backwashing process of the first filter plate 52, when the lifting cylinder 54 lifts the first filter plate 52 to the highest position, the lowest end of the first filter plate 52 is lower than the unopened part of the lower part of the side of the mounting cover 51 away from the water inlet pipe 2, so that the first filter plate 52 can always maintain the filtering effect.

[0053] Among them, a detachable cover plate is provided on the unopened lower part of the side of the installation cover 51 away from the water inlet pipe 2, a manhole cover is provided on the top of the well body 1, and an escalator (not shown) is provided inside the well body 1. Later workers can open the manhole cover and enter the well body 1, and clean the impurities filtered by the first filter plate 52 by opening the cover plate.

[0054] Slide sleeves are provided on both sides of the first filter plate 52, and slide rails are provided on both sides of the inner wall of the mounting cover 51. Both sides of the first filter plate 52 are slidably assembled through the slide sleeves and the slide rails.

[0055] As an optional method of this embodiment, the first filter plate 52 is a grid plate, and the sliding sleeves are correspondingly installed on both sides of the grid plate;

[0056] As another optional manner of this embodiment, the first filter plate 52 includes a metal filter screen and a frame. The metal filter screen is installed inside the frame, and the sliding sleeves are correspondingly installed on both sides of the frame.

[0057] See also Figure 2In this embodiment, the sewage discharge device 4 includes a sewage discharge main pipe 41, a sewage discharge branch pipe 42, a water pump 43 and a connecting pipe 44. The sewage discharge main pipe 41 is installed through the well body 1, one end of the sewage discharge branch pipe 42 is connected to the input end of the water pump 43, and the other end is spaced from the bottom of the well body 1. The connecting pipe 44 connects the output end of the water pump 43 and the sewage discharge main pipe 41.

[0058] When it is sunny or the rainfall is light, the sewage entering through the water inlet pipe 2 can be pumped out through the sewage discharge device 4 and discharged to a sewage treatment plant or the like for treatment, wherein the sewage discharge main pipe 41 discharges the sewage to a sewage treatment plant or the like through a pipe for purification;

[0059] Specifically, the water pump 43 draws sewage through the sewage branch pipe 42, and discharges the sewage through the connecting pipe 44, the sewage main pipe 41 and the connected pipes to a sewage treatment plant or the like for purification.

[0060] When the rainfall is heavy and the drain pipe 3 is required to discharge the water into a river or other place, in the initial stage, the sewage that has just entered is pumped out to a sewage treatment plant or other place by the sewage discharge device 4. When the sewage is gradually discharged, the water pump 43 is turned off and the subsequent rainwater is discharged through the drain pipe 3.

[0061] Preferably, the water pump 43, the connecting pipe 44 and the sewage branch pipe 42 are each provided in plurality and arranged in one-to-one correspondence. In the present embodiment, two are each provided.

[0062] Depending on the amount of sewage, one sewage branch pipe 42 may be used to extract the sewage or two sewage branch pipes 42 may be used to discharge the sewage.

[0063] The bottom end of the sewage branch pipe 42 is connected to the bottom of the inner wall of the well body 1 through a plurality of support rods, so that there is a pumping gap between the bottom end of the sewage branch pipe 42 and the well body 1, while improving the stability of the connection of the sewage branch pipe 42.

[0064] Please refer again Figure 2 In this embodiment, the backwash device 6 includes a water pipe 61, a water spray pipe 62 and a switching device 63. One end of the water pipe 61 is connected to the connecting pipe 44 through the switching device 63. The water spray pipe 62 is transversely connected to the other end of the water pipe 61. The switching device 63 connects the connecting pipe 44 and the water pipe 61. The switching device 63 is used to control the connection state between the water pipe 61 and the connecting pipe 44. The sewage discharge device 45 also includes a valve 45. The valve 45 is connected to the connecting pipe 44 and is located between the switching device 63 and the sewage discharge main pipe 41.

[0065] Usually, when the rainfall is heavy and the water needs to be drained quickly, the water flow is large. When the first filter plate 52 is blocked, it will affect the discharge speed of the water flow, and the first filter plate 52 needs to be cleaned. In addition, the large water flow is also easy to carry more impurities, which can easily clog the first filter plate 52. In this case, the sewage discharge device 4 is usually not in use, and the water is discharged through the drain pipe 3.

[0066] At this time, the sewage discharge device 4 can be used as a backwashing device. The switching device 63 connects the water pipe 61 with the connecting pipe 44. The valve 45 on the sewage main pipe 41 is in a closed state. The corresponding water pump 43 is turned on. The water pump 43 pumps water into the connecting pipe 44 through the sewage branch pipe 42. The water enters the water spray pipe 62 from the water pipe 61 through the switching device 63, and is sprayed onto the first filter plate 52 through the water outlet of the water spray pipe 62 to backwash it.

[0067] By switching the use state of the sewage discharge device 4 , the sewage discharge device 4 can be used to discharge sewage, or to perform a backwashing operation on the first filter plate 52 by conveying water flow.

[0068] In other embodiments, the backwashing device 6 includes a backwashing pump, a water inlet pipe, a water delivery pipe 61 and a water spray pipe 62. The backwashing pump is installed in the well body 1 through a bracket. One end of the water inlet pipe is installed at the input end of the backwashing pump, and the other end is located inside the well body 1, and the height is preferably lower than the height of the water inlet pipe 2 and the drain pipe 3. The water delivery pipe 61 connects the water spray pipe 62 and the output end of the backwashing pump. The water spray pipe 62 is suspended on one side above the first filter plate 52, and the water outlet faces the first filter plate 52.

[0069] See also Figure 3 and Figure 4 As an optional method of this embodiment, the switching device 63 includes a mounting shell 631, an adjusting cylinder 632 and a blocking plate 633. The mounting shell 631 is mounted on the connecting pipe 44. A water outlet 441 is provided on the connecting pipe 44. The water inlet of the mounting shell 631 is connected to the water outlet 441. The adjusting cylinder 632 is mounted on the mounting shell 631. The blocking plate 633 is mounted at the output end of the adjusting cylinder 632 and blocks the water outlet 441. The water pipe 61 is connected to the water outlet of the mounting shell 631.

[0070] When the sewage discharge device 4 is in the backwashing state and needs to connect the connecting pipe 44 and the water pipe 61, the regulating cylinder 632 lifts the blocking plate 633 so that the blocking plate 633 is offset from the water outlet 441, thereby achieving the connection between the connecting pipe 44 and the water pipe 61;

[0071] When the sewage discharge device 4 is in the sewage discharge state, the regulating cylinder 632 pushes down the blocking plate 633 so that the blocking plate 633 blocks the water outlet 441 again. Through blocking, when the sewage is pumped, the sewage can enter the water pipe 61 and the water spray pipe 62. Since the sewage carries large impurities such as mud and sand, it is easy to block the water spray pipe 62.

[0072] As another optional mode of this embodiment, the switching device 63 includes a valve housing, a motor, a rotating shaft and a circular valve plate, the motor is installed outside the valve housing, both ends of the circular valve plate are rotatably connected to the valve housing through the rotating shaft, the output shaft of the motor passes through the valve housing and is connected to a rotating shaft, and the cross-sectional area of ​​the circular valve plate is the same as that of the inner cavity of the valve housing;

[0073] The circular valve plate is driven by a motor to rotate ninety degrees to open or close the valve housing.

[0074] Please refer again Figure 3 and Figure 4 As a preferred embodiment of this embodiment, the switching device 63 also includes a second filter plate 634, which is installed at the bottom end of the blocking plate 633. When the adjusting cylinder 632 lifts the blocking plate 633 to be offset from the water outlet 441, the blocking plate 633 drives the second filter plate 634 to cover the water outlet 441.

[0075] By setting the second filter plate 634, when the sewage discharge device 4 is in the backwash state, the regulating cylinder 632 lifts the sealing plate 633 so that the sealing plate 633 is offset from the water outlet 441, and the sealing plate 633 drives the second filter plate 634 to move up and just cover the water outlet 441, so that during the cleaning process, the water flow entering the water supply pipe 61 can be filtered to prevent impurities in the water flow from entering the water spray pipe 62 and clogging the water outlet of the water spray pipe 62.

[0076] That is, when the sewage discharge device 4 is switched from the sewage discharge state to the backwash state, the function of filtering the incoming water flow can be realized.

[0077] See also Figure 3 The bottom of the inner wall of the water outlet hole 441 is set as an inclined surface. When impurities are attached to the second filter plate 634, the regulating cylinder 632 pushes the blocking plate 633 downward to block the water outlet hole 441 again. The impurities attached to the second filter plate 634 are scraped off through the hole wall of the water inlet of the mounting shell 631, and then enter the interior of the connecting pipe 44 along the inclined surface at the bottom of the water outlet hole 441, so that the attachments on the second filter plate 634 can be cleaned;

[0078] The second filter plate 634 has the same structure as the first filter plate 52 .

[0079] The lifting cylinder 54 and the adjusting cylinder 632 may be pneumatic cylinders, hydraulic cylinders or electric push cylinders.

[0080] See also Figure 4 As a preferred embodiment of this embodiment, the switching device 63 also includes a baffle 635, which is vertically installed on the second filter plate 634. When the second filter plate 634 covers the water outlet 441, the top of the baffle 635 is flush with the bottom of the inner wall of the water pipe 61.

[0081] By setting the baffle 635, when the second filter plate 634 covers the water outlet 441, the top of the baffle 635 is flush with the bottom of the inner wall of the water pipe 61, thereby preventing the water flow entering the inner wall of the installation shell 631 from entering the lower part of the installation shell 631, and the water flow can directly enter the water pipe 61.

[0082] A sealing strip is preferably provided on the peripheral side of the baffle 635 to ensure sealing.

[0083] See also Figure 2 and Figure 5 As an optional method of this embodiment, the cross-section of the water outlet of the water spray pipe 62 is set to be trapezoidal.

[0084] By setting the cross-section to a trapezoid, the water flow can be changed from slow to fast, thereby increasing the water pressure at the spraying point and achieving a better backwashing effect.

[0085] The length of the water spray pipe 62 is not shorter than the width of the first filter plate 52 . A strip-shaped water outlet hole 441 is provided on the narrower side of the water outlet portion having a trapezoidal cross section. Water flows through the water spray pipe 62 and is sprayed out from the strip-shaped water outlet hole 441 of the water outlet portion.

[0086] See also Figure 5 The filtering device 5 further includes a guide block 55 , which is mounted on the first filter plate 52 and is located below the water inlet pipe 2 .

[0087] By providing the guide block 55, impurities filtered by the upper part of the first filter plate 52 during use will be guided by the guide block 55 when falling, and will not fall directly to the lower part of the first filter plate 52, but will adhere to the lower part of the first filter plate 52, so that when the upper part of the first filter plate 52 is backwashed, the lower part of the first filter plate 52 can be better used as a temporary filtering device.

[0088] When the impurities accumulated inside the mounting cover 51 are subsequently cleaned manually, the lower part of the first filter plate 52 can be cleaned at the same time.

[0089] See also Figure 7As a preferred embodiment of the present invention, the interception well using the flexible interception device further comprises a flexible interception device 7. The flexible interception device 7 is installed on the drain pipe 3. The flexible interception device 7 comprises a mounting tube 71, a mounting plate 74, a capsule 75, a sealing ring 76, two fixed covers 72 and an end cover 73. The two end covers 73 are installed at both ends of the mounting tube 71. One fixed cover 72 is corresponding to one end cover 73. An installation gap is formed between the fixed cover 72 and the end cover 73. The capsule 75 is installed in the mounting tube 71. Inside the mounting tube 71, both ends of the sac body 75 are provided with flanges 751, and the two flanges 751 extend into the two mounting gaps respectively, and then the fixing cover 72 is installed with the corresponding end cover 73 through a fixing member, and the mounting plate 74 is installed on the fixing cover 72. An inflation gap is left between the sac body 75 and the mounting tube 71, and a sealing ring is provided between the mounting plate 74 and the fixing cover 72. A protrusion 76 is provided in the middle of the sac body, and a protrusion 752 is provided in the middle of the sac body 75.

[0090] By setting a flexible intercepting device 7, it is used to block the drain pipe 3 and open it according to the rainfall. Compared with the ordinary gate, the flexible intercepting device 7 has a simple structure, has a better buffering and absorption capacity for water flow impact and debris impact, effectively reduces the force, thereby improving the strength of the mechanism, is not easy to be corroded, reduces the risk of damage and failure rate, has a long service life, and the capsule can fit more tightly when sealing and has better sealing performance;

[0091] Among them, a plurality of fixing holes are correspondingly opened on the flanges 751 at both ends of the sac body 75, as well as on the end cover 73 and the fixing cover 72. Bolts are passed through and fixed accordingly, and then tightened to achieve installation and fixation of the sac body 75. By setting the end cover 73 and the fixing cover 72, the flanges 751 at both ends of the sac body 75 are clamped to assist in fixation, thereby reducing the pulling force on the fixing holes when the sac body 75 is deformed and closed due to the inflation gap in the box, thereby extending the service life of the sac body 75.

[0092] In this embodiment, the bladder 75 is made of rubber material or braided material vulcanized. The bladder 75 adopts three-point deformation or four-point deformation.

[0093] The mounting tube 71 is provided with an air inlet pipe, which is connected to an air pump through the pipe. The air pump fills gas between the mounting tube 71 and the bladder 75, so that the bladder 75 can be deformed and fit to close the channel. Specifically, the bladder 72 is provided with a protrusion 752, and the position is closed. The two ends of the bladder 72 are tapered toward the direction of the protrusion 752. Specifically, the bladder 75 is provided with a protrusion, and the shape of the bladder 75 is restored after deflation to open the channel.

[0094] In this embodiment, when the flexible intercepting device is installed on the well body 1 , it is connected to the drainage pipe 3 through the mounting plate 74 .

[0095] The sealing of the connection is ensured by providing a sealing ring 76 between the mounting plate 74 and the fixed cover 72. A plurality of pressure strips are installed on the fixed cover 72 by bolts, and a flange is provided on one side of the sealing ring 76. The pressure strip presses the flange to assist in limiting the sealing ring 76.

[0096] The water inlet pipe and the drainage pipe are connected to the other end of the flexible intercepting device 7 through flange matching bolts, and the bolts are passed through the fixing holes on the flange and the fixing holes on the fixing cover 72, the end cover 73 and the corresponding flange 751 in sequence, and then fixedly connected by nuts.

[0097] Preferably, the protrusion 752 is made of rubber, and the hardness of the protrusion 752 is lower than the hardness of the capsule 75. The protrusion 752 is easier to deform than the capsule 75. Therefore, during the deformation and fitting process of the capsule 75 of the flexible intercepting device 7, the protrusion 752 deforms more when being squeezed, thereby filling the fine gap to ensure the sealing effect when the flexible intercepting device 7 closes the channel.

[0098] See also Fig. 9 The fixed cover 72 is connected with a check component 721 , the check component 71 supports the end of the bladder body 72 , and a sealing ring is provided between the check component 71 and the bladder body.

[0099] See also Fig.10 A pressing groove 731 is provided on the end cover 73, and a flat groove is provided on the fixed cover 72. The flat groove 722 and the pressing groove 731 are located on both sides of the flange 751 of the capsule 75, and the teeth formed between the flat groove 722 and the pressing groove 731 correspond to each other. Therefore, when the end cover 73 cooperates with the fixed cover 72 to fix the flange 751, the teeth formed between the pressing grooves 731 squeeze the flange 751 and embed it into the flat groove 722 to improve the stability of the fixation.

[0100] See also Figure 8 and Fig. 9 The fixed cover 72 connected to the mounting plate 74 includes an annular cover and a square plate. The square plate is installed on the outside of the annular cover. The mounting plate 74 locks the square plate through multiple limiting components 741, and then through connecting components such as bolts, they pass through the limiting components 741, the square plate and the mounting plate 74 in sequence and are tightened by nuts to achieve the connection between the mounting plate 74 and the fixed cover 72.

[0101] See also Figure 7 and Figure 8 The intercepting well using the flexible intercepting device also includes a supporting device 8, and the supporting device 8 is used to support the flexible intercepting device 7.

[0102] By providing the supporting device 8, the flexible intercepting device 7 can be supported, thereby improving the stability of the flexible intercepting device 7 during use.

[0103] In one embodiment, the supporting device 8 includes a plurality of threaded rods, a plurality of nuts and a supporting frame. The plurality of nuts are correspondingly threadedly connected to the plurality of threaded rods. The supporting frame is sleeved on the plurality of threaded rods. The nuts support the supporting frame correspondingly. By adjusting the height of the nuts on the threaded rods, the height of the supporting frame can be adjusted. The practical flexible intercepting device 7 can be supported at different installation heights.

[0104] The contact surface between the support frame and the mounting tube 71 is arc-shaped, and fits with the mounting tube 71 to provide a good supporting effect. A plurality of drainage holes for drainage are provided on the support frame.

[0105] In another embodiment, the support device 8 includes a plurality of telescopic rods, a support frame and a plurality of positioning pins. The telescopic rod includes an outer tube and an inner rod. One end of the inner rod is slidably installed in the outer tube. The support frame is installed on the other end of the inner rod of the plurality of telescopic rods. A through hole is provided on the outer tube, and a plurality of limiting holes are provided on the inner rod. After the inner rod is telescoped to adjust the support height, the positioning pins are passed through the through holes and the limiting holes in sequence to limit it, and the support frame supports the flexible intercepting device 7.

[0106] See also Fig.11 The interception well using the flexible interception device also includes a rainfall sensor, a liquid level sensor, a flow rate sensor, a control module and an execution module, a wireless transmission module and a user monitoring module, wherein the execution module includes a water pump 43, a lifting cylinder 54, an adjusting cylinder 632, a valve 45, and an air pump for controlling the flexible interception device 7, etc.

[0107] The liquid level sensor is installed inside the well body 1 to detect the water level inside the well body 1. The flow rate sensor is installed on the water inlet pipe 2 and the drain pipe 3. The rainfall sensor is installed outside to detect the rainfall. The flow rate of the water flow and the water level inside the well body 1 can be determined by the liquid level sensor in conjunction with the flow rate sensor, so that the control module can automatically control the on or off of the water pump 43. If the water flow rate is small and the water level in the well body 1 is low, the sewage discharge device 4 is used to discharge sewage. When the water flow rate is fast and the water level is high, the control module automatically opens the flexible interception device 7 on the drain pipe 3 to perform drainage treatment.

[0108] When the rainfall sensor detects that the rainfall is still heavy, and the flow rate sensor detects that the flow rate is low, the first filter plate 52 may be clogged, so the control module can automatically start the lifting cylinder 54 and the regulating cylinder 632 to perform backwashing.

[0109] The control module can transmit the data detected by the rainfall sensor, liquid level sensor and flow rate sensor to the user monitoring module through the wireless transmission module. The user can understand the drainage situation by obtaining the detected data and can actively control the start and stop of each device in the execution module.

[0110] The working principle of the interception well using the flexible interception device provided by the present invention is as follows:

[0111] When the rainfall is heavy, the water entering the well body 1 needs to be discharged in time through the drain pipe 3. At this time, the sewage discharge device 4 does not perform sewage discharge work. During this process, the first filter plate 52 filters the impurities in the incoming water flow. Figure 5 In the initial state, the upper part of the first filter plate 52 mainly filters the water flow. When the part of the first filter plate 52 filtering the water flow is blocked, the lifting cylinder 54 lifts the first filter plate 52 to move the upper filtering part upward and staggered with the water flow. The lower part of the first filter plate 52 now filters impurities in the incoming water flow.

[0112] At the same time, the regulating cylinder 632 lifts the blocking plate 633 so that the blocking plate 633 is offset from the water outlet hole 441, thereby realizing the connection between the connecting pipe 44 and the water supply pipe 61, and the corresponding water pump 43 is turned on. The water pump 43 pumps water into the connecting pipe 44 through the sewage branch pipe 42, and then enters the water spray pipe 62 from the water supply pipe 61 through the switching device 63, and is sprayed onto the first filter plate 52 through the water outlet of the water spray pipe 62, and backwashes it to wash off the impurities attached to the first filter plate 52. The lifting cylinder 54 lifts the first filter plate 52, and the position of the first filter plate 52 can be adjusted to fully rinse the upper filtering part of the first filter plate 52. After the rinsing is completed, the lifting cylinder 54 lowers the first filter plate 52 to the starting height, and the upper part of the cleaned first filter plate 52 filters the water flow again to ensure the drainage effect, and during the cleaning process, the first filter plate 52 can always maintain the filtering function.

[0113] When the regulating cylinder 632 lifts the blocking plate 633 so that the blocking plate 633 is offset from the water outlet 441, the blocking plate 633 drives the second filter plate 634 to move up and just cover the water outlet 441. Therefore, during the cleaning process, the water flow entering the water pipe 61 can be filtered to prevent impurities in the water flow from entering the water spray pipe 62 and clogging the water outlet of the water spray pipe 62.

[0114] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A flow interception well using a flexible flow interception device, characterized in that: include: Well body, water inlet pipe, drainage pipe, sewage discharge device, filter device and backwash device; The water inlet pipe and the drainage pipe are respectively installed on both sides of the well body, and the sewage discharge device is installed on the well body; The filtering device comprises a mounting cover, a first filter plate, a mounting frame and a lifting cylinder, wherein the mounting cover is mounted on the inner wall of the well body, one end of the water inlet pipe is located inside the mounting cover, the first filter plate is slidably mounted inside the mounting cover, and the first filter plate is located on one side of the water inlet pipe, the lifting cylinder is mounted inside the well body through the mounting frame and is located above the first filter plate, the output end of the lifting cylinder is connected to the first filter plate, and the length of the first filter plate is greater than the diameter of the water inlet pipe; A backwashing device is suspended above the first filter plate, and a water outlet of the backwashing device faces the first filter plate.

2. The interception well using a flexible interception device according to claim 1, characterized in that: The sewage discharge device includes a sewage discharge main pipe, a sewage discharge branch pipe, a water pump and a connecting pipe. The sewage discharge main pipe is installed through the well body. One end of the sewage discharge branch pipe is connected to the input end of the water pump, and a distance is left between the other end and the bottom of the well body. The connecting pipe connects the output end of the water pump and the sewage discharge main pipe.

3. The interception well using the flexible interception device according to claim 2, characterized in that: The backwashing device includes a water pipe, a water spray pipe and a switching device, one end of the water pipe is connected to the connecting pipe through the switching device, the water spray pipe is transversely connected to the other end of the water pipe, the switching device connects the connecting pipe and the water pipe, and the switching device is used to control the connection state between the water pipe and the connecting pipe. The sewage discharge device also includes a valve, which is connected to one of the connecting pipes and is located between the switching device and the sewage discharge main pipe.

4. The interception well using a flexible interception device according to claim 3, characterized in that: The switching device includes a mounting shell, an adjusting cylinder and a blocking plate. The mounting shell is mounted on the connecting pipe. A water outlet hole is provided on the connecting pipe. The water inlet of the mounting shell is connected to the water outlet hole. The adjusting cylinder is mounted on the mounting shell. The blocking plate is mounted on the output end of the adjusting cylinder and blocks the water outlet hole. The water pipe is connected to the water outlet of the mounting shell.

5. The interception well using the flexible interception device according to claim 4, characterized in that: The switching device also includes a second filter plate, which is installed at the bottom end of the blocking plate. When the regulating cylinder lifts the blocking plate to be offset from the water outlet, the blocking plate drives the second filter plate to cover the water outlet.

6. The interception well using the flexible interception device according to claim 5, characterized in that: The switching device further comprises a baffle, which is vertically mounted on the second filter plate. When the second filter plate covers the water outlet, the top of the baffle is flush with the bottom of the inner wall of the water pipe.

7. The interception well using the flexible interception device according to claim 6, characterized in that: The cross section of the water outlet of the water spray pipe is set to be trapezoidal.

8. The interception well using a flexible interception device according to claim 1, characterized in that: The filtering device further comprises a guide block, which is mounted on the first filter plate and is located below the water inlet pipe.

9. The interception well using a flexible interception device according to claim 1, characterized in that: The interception well using a flexible interception device also includes a flexible interception device. The flexible interception device is installed on the drainage pipe. The flexible interception device includes a mounting tube, a mounting plate, a sac, a sealing ring, two fixed covers and an end cover. The two end covers are installed at both ends of the mounting tube. One fixed cover is correspondingly arranged with one end cover. An installation gap is formed between the fixed cover and the end cover. The sac is installed inside the mounting tube. Both ends of the sac are provided with flanges. After the two flanges extend into the interior of the two installation gaps, one fixed cover is installed with the corresponding end cover through a fixing piece. The mounting plate is installed on one fixed cover. An inflation gap is left between the sac and the mounting tube. A sealing ring is arranged between the mounting plate and the fixed cover. A protrusion is arranged in the middle of the sac.

10. The intercepting well using a flexible intercepting device according to claim 9, characterized in that: The interception well using the flexible interception device further comprises a supporting device, and the supporting device is used to support the flexible interception device.

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