Hydrodynamic water retaining device with self-drainage function

Abstract

The invention discloses a hydrodynamic water retaining device with a self-drainage function, belongs to the technical field of water retaining plates, and solves the problem that water in a water storage cavity cannot be automatically drained in the prior art. The device mainly comprises a plurality of stand columns vertically arranged in a water storage cavity, a top layer supporting frame is supported above the stand columns, and a water baffle is hinged to the top layer supporting frame. A main drainage pipe communicated with the water storage cavity is arranged at the bottom of the water storage cavity, a one-way valve is arranged on the main drainage pipe, and the tail end of the main drainage pipe is communicated with an urban building rainwater pipe network. Water in the water storage cavity can be automatically drained into a rainwater pipe network of urban construction, manual intervention is not needed, the labor intensity is reduced, and the efficiency of restoring the water baffle to the original shape is improved.

Description

Technical Field

[0001] The invention relates to the technical field of water retaining plates, and in particular to a hydrodynamic water retaining device with a self-draining function. Background Art

[0002] In areas prone to rain and flood disasters, in order to ensure the safety of underground spaces and avoid water intrusion and economic losses. Many underground space entrances will be equipped with water retaining devices, such as an automatic water retaining panel with announcement number CN216865004U. The water retaining panel is used to retain water at the entrances and exits of underground buildings. The water retaining panel is composed of multiple water retaining units connected in sequence. The water retaining unit includes: a base, the base includes a water storage chamber; a water retaining plate, one end of the water retaining plate is hinged to the base through a hinge, when the water in the water storage chamber is full of water, the water retaining plate can rotate around the hinge under the action of buoyancy; wherein adjacent water retaining plates are connected by a connecting mechanism.

[0003] The above patent is that the water inside the water storage chamber cannot be discharged by itself. After the rain, the water baffle needs to be opened manually to discharge the sewage inside the water storage chamber through a water pump. Summary of the invention

[0004] The purpose of the present invention is to provide a hydrodynamic water retaining device with a self-draining function. The water inside the water storage chamber of the present invention can be discharged automatically into the rainwater pipe network of urban construction without human intervention, thereby reducing labor intensity and improving the efficiency of restoring the water retaining plate to its original state.

[0005] The present invention is achieved through the following technical solutions:

[0006] A water-powered water retaining device with a self-draining function comprises a plurality of columns vertically arranged inside a water storage chamber, a top support frame is supported above the columns, and a water retaining plate is hinged on the top support frame. A main drainage pipe connected to the water storage chamber is provided at the bottom of the water storage chamber, a one-way valve is provided on the main drainage pipe, and the end of the main drainage pipe is connected to the urban construction rainwater pipe network.

[0007] Furthermore, the one-way valve includes a tubular valve body, which is inserted into the main drainage pipe. An annular retaining ring is inlaid inside the valve body. A valve plate is hinged on the side of the retaining ring away from the water storage chamber. The top of the valve plate is hinged to the retaining ring. In the initial state, the valve plate is arranged vertically and the valve plate is abutted against the retaining ring.

[0008] Furthermore, the main drainage pipe is arranged below the outside of the water storage chamber, and the main drainage pipe is connected to the water storage chamber through a plurality of vertically arranged branch pipes.

[0009] Furthermore, a water spoiler is inserted at the inlet of the branch water pipe, and the water spoiler comprises a tubular shell, and support rings are fixed at both ends of the shell, and a paddle is rotatably arranged between the two support rings, and the rotating shaft of the paddle is rotatably arranged inside the support ring. A filter plate is arranged at the upper end of the shell, and the rotating shaft at the upper end of the paddle is passed through the filter plate and fixed with a horizontally arranged spoiler.

[0010] Furthermore, a support plate is provided on the side wall of the column, a bottom support frame is supported on the support plate, and a bottom filter plate is laid on the bottom support frame.

[0011] Furthermore, an intermediate support frame is arranged above the bottom support frame at intervals, an intermediate filter plate is laid on the intermediate support frame, and the filter hole diameter of the intermediate filter plate is larger than the filter hole diameter of the bottom filter plate.

[0012] Furthermore, a hole is provided on the side wall of the column, and the intermediate support frame includes long tubes arranged at intervals on both sides, and a plurality of second mounting plates arranged at intervals are fixedly connected below the long tubes, and the intermediate filter plate is laid on the second mounting plate. The end of the long tube is threadedly connected with a screw, and the screw is inserted into the hole.

[0013] Furthermore, the top support frame includes a rectangular second frame and a third mounting plate fixedly connected to the second frame at intervals below the second frame, a plug-in slot is provided at the bottom of the second frame, and the top of the column is inserted into the plug-in slot. The water retaining plate is provided inside the second frame, and the water retaining plate is mounted on the third mounting plate.

[0014] Furthermore, the water retaining plate comprises a rectangular bearing frame, a sealing plate is provided at the bottom of the bearing frame, a rear end of the sealing plate abuts against a rear end of the bearing frame, and a front end of the sealing plate is spaced apart from a front end of the bearing frame. The rear end top surface of the bearing frame is hinged to the rear end top surface of the second frame.

[0015] Furthermore, the rear end face and the left and right end faces of the carrier are provided with a U-shaped groove, and a sealing member is clamped inside the U-shaped groove. The sealing member includes an arcuate sealing strip in the length direction, and side strips are connected to the two sides of the arcuate sealing strip. The inner side of the second frame is provided with an arcuate groove, and the arcuate sealing strip is rotatably arranged inside the arcuate groove, and the arcuate surface of the arcuate sealing strip abuts against the inner wall of the arcuate groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The water inside the water storage cavity of the present invention can be discharged automatically into the rainwater pipe network of urban construction without manual intervention, which reduces labor intensity and improves the efficiency of restoring the water retaining plate to its original state.

[0018] 2. The seal of the present invention is arranged inside the groove, not in the open air, so it can avoid the occurrence of aging due to long-term wind and sun exposure. At the same time, it is made of water-absorbing and expanding material, which further improves the reliability of use.

[0019] 3. The present invention does not require the water baffle to be opened after the water storage chamber is full of water, and the height of the liquid level when the water baffle is opened is adjustable, which is convenient for application in different regions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the overall structural diagram of a hydrodynamic water retaining device with self-draining function after installation and the entrance to the underground space in this application;

[0021] Figure 2 for Figure 1 Structural diagram after the middle water retaining plate is lifted;

[0022] Figure 3 for Figure 1 A cross-sectional view of

[0023] Figure 4 This is a structural diagram of a hydrodynamic water retaining device with self-draining function for this application;

[0024] Figure 5 for Figure 4 A partial enlarged view of the middle part;

[0025] Figure 6 for Figure 4 Structural diagram after the middle water retaining plate is opened;

[0026] Figure 7 for Figure 6 A partial enlarged view of point B in the middle;

[0027] Figure 8 for Figure 4 Sectional view;

[0028] Fig. 9 for Figure 8 A partial enlarged view of point C in the middle;

[0029] Fig.10 for Figure 4 Exploded diagram of

[0030] Fig.11 This is a structural diagram of the installation of the middle column and the bottom support frame of a hydrodynamic water retaining device with a self-draining function;

[0031] Fig.12 This is a structural diagram of the installation of the center column and the intermediate support frame of a hydrodynamic water retaining device with a self-draining function;

[0032] Fig.13This is a structural diagram of the installation of the middle column and the top support frame of a hydrodynamic water retaining device with a self-draining function;

[0033] Fig.14 This is a structural diagram of an intermediate support frame in a hydrodynamic water retaining device with a self-draining function in this application;

[0034] Fig.15 This is a structural diagram of the connection between the top frame and the water retaining plate in a hydrodynamic water retaining device with a self-draining function in this application;

[0035] Fig.16 This is an exploded view of a water retaining plate in a hydrodynamic water retaining device with a self-draining function in the present application;

[0036] Fig.17 This is a structural diagram of the connection between the water retaining plate and the opening water level regulating device in a hydrodynamic water retaining device with a self-draining function in the present application;

[0037] Fig.18 for Fig.17 Structural diagram after the middle water retaining plate is opened;

[0038] Fig.19 This is a structural diagram of a water level regulating device in a hydrodynamic water retaining device with a self-draining function in this application;

[0039] Fig. 20 for Fig.19 Exploded diagram of

[0040] Fig.21 for Fig.19 A cross-sectional view of

[0041] Fig. 22 for Fig.21 A partial enlarged view of point D in the middle;

[0042] Fig.23 This is a structural diagram of a lower water spoiler in a hydrodynamic water retaining device with a self-draining function for the present application.

[0043] In the figure: 1, column; 101, vertical rod; 102, first base; 103, support plate; 104, hole; 2, bottom support frame; 201, first frame; 202, first mounting plate; 3, middle support frame; 301, long tube; 302, second mounting plate; 303, screw; 4, top support frame; 401, second frame; 402, third mounting plate; 403, plug-in slot; 404, arc groove; 5, water retaining plate; 501, support frame; 502, sealing plate; 6, sealing element; 601, arc sealing strip; 602, side strip; 7, bottom filter plate; 8, middle filter plate; 9, cylinder; 901, second base; 902, water leakage hole; 903, slot; 10, top Cover; 1001, through hole; 11, floating object; 1101, top rod; 12, guide frame; 1201, bracket; 1202, vertical rod; 13, connector; 1301, sleeve; 1302, bracket; 1303, roller; 14, guide rail; 1401, U-shaped plate; 1402, slide; 15, plug plate; 16, main drain pipe; 17, branch pipe; 18, one-way valve; 1801, valve body; 1802, retaining ring; 1803, valve plate; 19, launching spoiler; 1901, shell; 1902, support ring; 1903, paddle; 1904, spoiler; 1905, filter plate; 20, underground space entrance; 2001, water storage chamber; 2002, wall. DETAILED DESCRIPTION

[0044] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the accompanying drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should all fall within the scope of protection of this application. In addition, the directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional words used are used to illustrate rather than limit the invention.

[0045] The present invention will be further described below in conjunction with the accompanying drawings.

[0046] Embodiment 1: A hydrodynamic water retaining device with self-draining function, such as Figure 1-Figure 3 As shown, it includes a plurality of columns 1 vertically arranged inside the water storage chamber 2001. In this embodiment, at least six columns 1 are arranged, four of which are arranged at the four corners of the water storage chamber 2001, and the other two are arranged in the middle of the end surface of the water storage chamber 2001. A first base 102 is provided at the bottom of the column 1, and the first base 102 is fixedly connected to the bottom surface of the water storage chamber 2001 by expansion bolts.

[0047] like Figure 4As shown, the top of the column 1 supports a top support frame 4, and the top support frame 4 is hinged with a water retaining plate 5. Fig.15 as well as Fig.16 As shown, the top support frame 4 includes a rectangular second frame 401 and a third mounting plate 402 fixedly connected to and spaced below the second frame 401 , and the third mounting plate 402 is arranged along the width direction of the second frame 401 .

[0048] The second frame 401 has an inserting slot 403 at the bottom, and the top of the vertical rod 101 of the column 1 is inserted into the inserting slot 403 .

[0049] The water baffle 5 is arranged inside the second frame 401, and the water baffle 5 is mounted on the third carrying plate 402. The water baffle 5 includes a rectangular support frame 501, a sealing plate 502 is arranged at the bottom of the support frame 501, the rear end of the sealing plate 502 abuts against the rear end of the support frame 501, and the front end of the sealing plate 502 is arranged at intervals from the front end of the support frame 501, so that rainwater can flow from the position where there is no sealing plate 502 at the front end of the support frame 501 to the inside of the water storage chamber 2001. The space is large and will not be blocked by large debris, such as branches, leaves or other garbage, which will not affect the drainage effect, and the drainage is fast, so as to prevent water from overflowing the water baffle 5 and flowing into the underground space through the underground space entrance 20.

[0050] The top of the support frame 501 is flush with the top surface of the second frame 401, and the rear end top surface of the support frame 501 is hinged to the rear end top surface of the second frame 401 through an embedded hinge, and the hinge can be a hinge.

[0051] Depend on Figure 2 As shown, the two ends of the water retaining plate raised on rainy days abut against the wall 2002 to block the underground space entrance 20. In order to prevent rainwater from penetrating through the gap between the water retaining plate 5 and the wall 2002, or the gap between the water retaining plate 5 and the top support frame 4, in this embodiment, the rear side end face and the left and right side end faces of the support frame 501 are provided with U-shaped grooves, and a sealing member 6 is clamped inside the U-shaped groove.

[0052] like Figure 5 and Figure 7 As shown, the sealing member 6 comprises an arcuate sealing strip 601 in the length direction, and side strips 602 are connected to both sides of the arcuate sealing strip 601. An arcuate groove 404 is provided on the inner side of the second frame 401. The arcuate sealing strip 601 is rotatably arranged inside the arcuate groove 404, and the arcuate surface of the arcuate sealing strip 601 abuts against the inner wall of the arcuate groove 404.

[0053] Furthermore, the sealing member 6 may be made of a water-swellable material, such as a water-swellable waterstop strip or water-swellable rubber, which may further improve the sealing effect.

[0054] A modular basement entrance water retaining system with announcement number CN115075187B includes more than two parallel water retaining units and two side wall sealing units, wherein the side wall sealing unit includes two water retaining pads, and the water retaining pads are fan-shaped soft rubber pads, that is, the gap between the water retaining pads and the wall is sealed by the fan-shaped soft rubber pads. However, the fan-shaped rubber pads are arranged in the open air, which is easy to age, harden, and then fail. In this embodiment, the fan-shaped rubber pads in the prior art are replaced by the sealing member 6, and the sealing member 6 is arranged inside the groove, not in the open air, so that the occurrence of aging due to long-term wind and sun exposure can be avoided. At the same time, it is made of water-absorbing and swelling materials, which further improves the reliability of use.

[0055] A main drainage pipe 16 is provided at the bottom of the water storage chamber 2001 and is connected to the water storage chamber 2001 . A one-way valve 18 is provided on the main drainage pipe 16 . The end of the main drainage pipe 16 is connected to the urban construction rainwater pipe network.

[0056] The one-way valve 18 can prevent rainwater or sewage from flowing back into the water storage chamber 2001. Since the opening of the one-way valve 18 can only rely on the deadweight of the water inside the water storage chamber 2001, in order to ensure that the one-way valve 18 is easy to open without excessive pressure, the attached Fig. 9 As shown, the one-way valve 18 comprises a circular tubular valve body 1801. The valve body 1801 is inserted into the main drain pipe 16, and an annular retaining ring 1802 is inlaid inside the valve body 1801. A valve plate 1805 is hingedly connected to the retaining ring 1802 on the side of the retaining ring 1802 away from the water storage chamber 2001. The top of the valve plate 1805 is hingedly connected to the retaining ring 1802. In the initial state, the valve plate 1805 is arranged vertically, and the valve plate 1805 abuts against the retaining ring 1802.

[0057] In order to drain water quickly, the main drainage pipe 16 is arranged below the outside of the water storage chamber 2001, and the main drainage pipe 16 is connected to the water storage chamber 2001 through a plurality of vertically arranged branch pipes 17.

[0058] like Fig.10 As shown, a water spoiler 19 is inserted at the inlet of the branch water pipe 17, and the water spoiler 19 can prevent the sediment from accumulating at the bottom of the water storage chamber 201. Fig.23 As shown, the launching spoiler 19 comprises a tubular shell 1901 , and support rings 1902 are fixed at both upper and lower ends of the shell 1901 , a paddle 1903 is rotatably provided between the two support rings 1902 , and the rotating shaft of the paddle 1903 is rotatably provided inside the support ring 1902 .

[0059] A filter plate 1905 is disposed at the upper end of the housing 1901 , and a rotating shaft at the upper end of the paddle 1903 is passed through the filter plate 1905 and is fixed with a horizontally arranged spoiler 1904 .

[0060] As rainwater flows downward, it pushes the paddle 1903 to rotate, which in turn drives the spoiler 1904 to rotate, thereby removing large particles of debris on the filter plate 1905 without affecting the use effect of the filter plate 1905 and avoiding pipe blockage.

[0061] In order to prevent large volumes of debris from flowing into the pipeline, this embodiment adds two-side filtration. Fig.11 To Attachment Fig.14 As shown, a support plate 103 is provided on the side wall of the vertical rod 101 of the column 1, and a bottom support frame 2 is supported on the support plate 103, and a bottom filter plate 7 is laid on the bottom support frame 2. In this embodiment, Figure 8 As shown, the bottom support frame 2 includes a rectangular first frame 201 and a first mounting plate 202 fixedly connected thereto at intervals therein, the bottom filter plate 7 is placed on the first mounting plate 202 , and the first frame 201 is placed on the support plate 103 .

[0062] An intermediate support frame 3 is arranged above the bottom support frame 2 at intervals, and an intermediate filter plate 8 is laid on the intermediate support frame 3 . The filter hole diameter of the intermediate filter plate 8 is larger than the filter hole diameter of the bottom filter plate 7 .

[0063] A hole 104 is provided on the side wall of the vertical rod 101, and the intermediate support frame 3 includes long tubes 301 arranged at intervals on both sides, and a plurality of second mounting plates 302 arranged at intervals are fixedly connected below the long tubes 301, and the intermediate filter plate 8 is laid on the second mounting plates 302. The end of the long tube 301 is threadedly connected with a screw 303, and the screw 303 is inserted into the hole 104.

[0064] In an automatic water retaining panel with announcement number CN216865004U and a modular basement entrance water retaining system with application number CN202210702898.1, the water retaining plate will only be lifted under the action of buoyancy after the water storage chamber is full of water. However, often when the water storage chamber is full of water, a large amount of water has already entered the underground space, and the accumulated water inside has reached a certain depth.

[0065] In order to solve the above problem, the water baffle can be opened in advance before the water storage chamber is full of water. Fig.17 To Attachment Fig. 22 As shown, a water level regulating device is provided inside the water storage chamber 2001.

[0066] The water level regulating device comprises a vertically arranged cylinder 9, the upper end of which is open. A floating object 11 is provided inside the cylinder 9 to slide up and down, and the floating object 11 is always located above the liquid surface. Figure 6As shown, a vertically arranged top rod 1101 is fixed above the floating object 11, a guide rail 14 is fixed at the bottom of the water retaining plate 5, a connector 13 is slidably provided on the guide rail 14, and the connector 13 is detachably connected to the top of the top rod 1101.

[0067] A plurality of water leakage holes 902 are arranged at intervals in the upper and lower directions on the side wall of the cylinder 9. The water leakage holes 902 are strip-shaped. A U-shaped slot 903 is provided outside the water leakage hole 902. A plug plate 15 is inserted into the slot 903. The plug plate 15 blocks the water leakage hole 902. By using plug plates 15 of different heights to block water leakage holes 902 of different heights, the height of the liquid level flowing into the cylinder 9 is adjusted.

[0068] When the liquid level in the water storage chamber 2001 reaches the water leakage hole 902 that is not blocked by the plug plate 15, the sewage flows into the cylinder 9 through the water leakage hole 902, raising the liquid level in the cylinder 9, lifting the floating object 11, and then lifting the water retaining plate 5.

[0069] The bottom of the cylinder 9 is fixedly connected to the bottom of the water storage chamber 2001 through the second base 901 by expansion bolts. In order to prevent the floating object 11 from deflecting, a guide frame 12 is provided outside the floating object 11. The guide frame 12 includes a bracket 1201 and a vertical rod 1202 fixedly connected around the bracket 1201. In the waterless state, the bottom of the floating object 11 abuts against the bracket 1201, the bottom of the bracket 1201 is spaced apart from the bottom of the cylinder 9, and the vertical rod 1202 is spaced apart from the side wall of the cylinder 9.

[0070] An upper cover 10 is provided above the cylinder 9 , and a through hole 1001 is provided in the middle of the upper cover 10 . When the liquid level inside the water storage chamber 2001 is higher than the upper cover 10 , water can quickly enter through the through hole 1001 .

[0071] Meanwhile, a plurality of fixing holes are provided on the upper cover 10 , and the tops of the vertical rods 1202 pass through the fixing holes, and the fixing holes play a role in limiting and fixing the guide frame 12 .

[0072] like Figure 6 As shown, the guide rail 14 includes a U-shaped plate 1401 with an open lower end, and a through slide groove 1402 is provided on the vertical surface of the U-shaped plate 1401. The connector 13 includes a sleeve 1301, a bracket 1302 and a roller 1303, and the roller 1303 is rotatably arranged inside the U-shaped plate 1401, and the rotating shaft of the roller 1303 is passed through the slide groove 1402.

[0073] The bracket 1302 is U-shaped, and the two vertical surfaces are rotatably connected to the rotating shafts at both ends of the roller 1303. The sleeve 1301 is fixed to the horizontal surface of the bracket 1302, and the sleeve 1301 is detachably connected to the top of the top rod 1101. The detachable connection can be plug-in or threaded.

[0074] If maintenance is required, the sleeve 1301 and the top rod 1101 can be disassembled, and then the water retaining plate 5 can be rotated 180 degrees to expose the water storage chamber 2001.

[0075] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. A hydrodynamic water retaining device with self-draining function, characterized in that: The invention comprises a plurality of columns (1) vertically arranged inside a water storage chamber (2001), wherein a top support frame (4) is supported above the columns (1), and a water retaining plate (5) is hingedly connected to the top support frame (4); a main drainage pipe (16) which is connected to the water storage chamber (2001) is provided at the bottom of the water storage chamber (2001), a one-way valve (18) is provided on the main drainage pipe (16), and the end of the main drainage pipe (16) is connected to the urban construction rainwater pipe network.

2. The hydrodynamic water retaining device with self-draining function according to claim 1, characterized in that: The one-way valve (18) comprises a tubular valve body (1801), which is inserted into the main drainage pipe (16). An annular retaining ring (1802) is embedded in the valve body (1801), and a valve plate (1805) is hingedly connected to the retaining ring (1802) on the side facing away from the water storage chamber (2001). The top of the valve plate (1805) is hingedly connected to the retaining ring (1802). In the initial state, the valve plate (1805) is arranged vertically, and the valve plate (1805) is in contact with the retaining ring (1802).

3. The hydrodynamic water retaining device with self-draining function according to claim 1 or 2, characterized in that: The main drainage pipe (16) is arranged below the outside of the water storage chamber (2001), and the main drainage pipe (16) is connected to the water storage chamber (2001) through a plurality of vertically arranged branch pipes (17).

4. The hydrodynamic water retaining device with self-draining function according to claim 3 is characterized in that: A water-discharging spoiler (19) is inserted at the inlet of the branch water pipe (17), and the water-discharging spoiler (19) comprises a tubular shell (1901), and support rings (1902) are fixed at both upper and lower ends of the shell (1901), and a paddle (1903) is rotatably arranged between the two support rings (1902), and the rotating shaft of the paddle (1903) is rotatably arranged inside the support ring (1902); A filter plate (1905) is provided at the upper end of the shell (1901), and a rotating shaft at the upper end of the paddle (1903) is passed through the filter plate (1905) and fixed with a horizontally arranged spoiler (1904).

5. The hydrodynamic water retaining device with self-draining function according to claim 4, characterized in that: A support plate (103) is provided on the side wall of the column (1), a bottom support frame (2) is supported on the support plate (103), and a bottom filter plate (7) is laid on the bottom support frame (2).

6. The hydrodynamic water retaining device with self-draining function according to claim 5, characterized in that: An intermediate support frame (3) is arranged above the bottom support frame (2) at intervals, and an intermediate filter plate (8) is laid on the intermediate support frame (3). The filter hole diameter of the intermediate filter plate (8) is larger than the filter hole diameter of the bottom filter plate (7).

7. The hydrodynamic water retaining device with self-draining function according to claim 6, characterized in that: The side wall of the column (1) is provided with a hole (104), the intermediate support frame (3) comprises long tubes (301) arranged at intervals on both sides, a plurality of second mounting plates (302) arranged at intervals are fixedly connected below the long tubes (301), the intermediate filter plate (8) is laid on the second mounting plate (302), and the end of the long tube (301) is threadedly connected with a screw rod (303), and the screw rod (303) is inserted into the hole (104).

8. The hydrodynamic water retaining device with self-draining function according to any one of claims 4 to 7, characterized in that: The top support frame (4) comprises a rectangular second frame (401) and a third mounting plate (402) fixedly connected to the bottom of the second frame (401) at intervals; a plug-in slot (403) is provided at the bottom of the second frame (401), and the top of the column (1) is inserted into the plug-in slot (403); The water baffle plate (5) is arranged inside the second frame (401), and the water baffle plate (5) is mounted on the third mounting plate (402).

9. The hydrodynamic water retaining device with self-draining function according to claim 8, characterized in that: The water retaining plate (5) comprises a rectangular bearing frame (501), a sealing plate (502) is provided at the bottom of the bearing frame (501), a rear end of the sealing plate (502) is in contact with a rear end of the bearing frame (501), and a front end of the sealing plate (502) is spaced apart from a front end of the bearing frame (501); The rear end top surface of the support frame (501) is hinged to the rear end top surface of the second frame (401).

10. The hydrodynamic water retaining device with self-draining function according to claim 9, characterized in that: The rear end surface and the left and right end surfaces of the carrier (501) are provided with a U-shaped groove, and a sealing member (6) is clamped inside the U-shaped groove; The sealing member (6) comprises an arc-shaped sealing strip (601) in the length direction, and side strips (602) are connected to the two sides of the arc-shaped sealing strip (601). An arc-shaped groove (404) is provided on the inner side of the second frame (401). The arc-shaped sealing strip (601) is rotatably arranged inside the arc-shaped groove (404), and the arc-shaped surface of the arc-shaped sealing strip (601) abuts against the inner wall of the arc-shaped groove (404).

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