CN115387282A

CN115387282A - Automatic flood discharge flap steel dam gate

Info

Publication number: CN115387282A
Application number: CN202211002236.XA
Authority: CN
Inventors: 闵凤
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-21
Filing date: 2022-08-21
Publication date: 2022-11-25

Abstract

The invention discloses an automatic flood discharge flap steel dam gate, and belongs to the technical field of hydraulic engineering. The utility model provides an automatic flood discharge turns over board steel dam gate, is including the reservoir base that has first mounting groove, second mounting groove and third mounting groove, and door leaf slidable mounting is provided with the storage water tank in the first mounting groove in the third mounting groove, still includes: a municipal drainage channel; the lower end of the supporting rod is respectively connected with the door leaf and the movable plate through a first connecting piece and a second connecting piece; when the very big water yield of rainwater constantly rises, fill up rapidly in the municipal drainage channel and no longer exert more usefulness, and the door leaf constantly rises along with the increase of water level under hydraulic effect, when arresting the flood, the door leaf also can receive the horizontal pressure of limit, makes door leaf and reservoir base laminating, and the bracing piece rises and rotatory support door leaf along with the door leaf through first connecting piece simultaneously, strengthens the shock resistance of door leaf.

Description

Automatic flood discharge flap steel dam gate

Technical Field

The invention relates to the technical field of hydraulic engineering, in particular to an automatic flood discharge flap steel dam gate.

Background

The steel dam gate is mainly applied to agricultural irrigation, urban flood control, urban river landscape engineering and reservoir capacity increase. The existing flap flood gate is generally a hydraulic rod push-type steel dam gate. The support hinges are uniformly arranged on the concrete slab at the bottom of the steel dam, the bottom of the door leaf of the steel dam is connected with the support hinges, the door leaf can rotate around the support hinges, and the plurality of oil cylinders are used for pushing the steel dam supporting structure, so that the functions of dam ascending and water stopping or dam descending and water discharging are realized.

Be located used steel dam gate of city flood control needs practicality and aesthetic property to combine together, consequently hide the steel dam gate under the road surface and come into existence at present, when the very big water yield of rainwater constantly rises, fill up rapidly in the municipal drainage channel and no longer exert more usefulness, and the door leaf constantly rises along with the increase of water level under hydraulic effect, block the flood, but contain a quantitative silt in the flood, so all need wash the reservoir base and reduce silt and block up after Hong Shuijie at every turn, need waste a large amount of manpowers at every turn, intensity of labour is great.

Disclosure of Invention

The invention aims to solve the problems that a reservoir base needs to be washed after Hong Shuijie in the prior art to reduce sediment blockage, a large amount of manpower needs to be wasted each time, and the labor intensity is high.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides an automatic flood discharge turns over board steel dam gate, is including the reservoir base that has first mounting groove, second mounting groove and third mounting groove, and door leaf slidable mounting is in first mounting groove, be provided with the storage water tank in the third mounting groove, still include: the municipal drainage channel is arranged on the outer side of the reservoir base and is used for draining water; the movable plate is slidably arranged in the water storage tank, an air cavity is reserved between the movable plate and the top in the water storage tank, and an air bag communicated with the air cavity is arranged above the movable plate; the lower end of the supporting rod is connected with the door leaf and the movable plate through a first connecting piece and a second connecting piece respectively; the two symmetrically arranged hollow rollers are connected with the water storage tank through hoses with universal rotating heads.

In order to support the door leaf when flood is stopped and improve the impact capability of the door leaf, preferably, the first connecting piece comprises a connecting shaft which is rotatably connected to the supporting rod, a gear is coaxially arranged at one end of the connecting shaft away from the supporting rod, a rack is arranged on the inner wall of the opening of the second mounting groove through a bolt, and the rack can be meshed with the gear; one side fixedly connected with horizon bar that the door leaf is close to the second mounting groove, the one end welding that the horizon bar is located the second mounting groove has the U-shaped die-pin, the U-shaped die-pin is located the below of connecting axle.

The air inflation and deflation of the air bag are controlled during the working period of the pressing plate, in order to keep the pressing plate always in a stable moving track, preferably, the second connecting piece comprises an L-shaped supporting rod fixedly connected with the supporting rod, one end of the L-shaped supporting rod, which is far away from the supporting rod, is fixedly connected with the pressing plate, and a sliding rod is connected between the pressing plate and the water storage tank; the two sides of the water storage tank are symmetrically provided with sliding holes, and the L-shaped stay bar is connected in the sliding holes in a sliding manner.

In order to enable the air in the air bag to be extruded into the air cavity, furthermore, a plurality of air holes communicated with the air cavity are formed above the water storage tank, and the air holes are all positioned in the air bag; the intercommunication has first inlet tube between storage water tank and the first mounting groove, install first check valve that intakes on the first inlet tube.

In order to discharge the flood in the reservoir base along with the municipal drainage channel after the flood subsides, preferably, a drainage cover is installed on the municipal drainage channel, a U-shaped sliding groove seat is installed below the drainage cover, a water baffle is connected in the U-shaped sliding groove seat in a sliding mode, and an oil cylinder is connected between the water baffle and the inner wall of the municipal drainage channel; and a second water inlet pipe is connected between the municipal drainage channel and the reservoir base, and a second water inlet check valve is installed on the second water inlet pipe.

Because the gate leaf rises gradually through the increase of water pressure, in order to improve the rising efficiency of the gate leaf, preferably, the bottom of the gate leaf is fixedly provided with supporting legs, a supporting plate is welded between every two adjacent supporting legs, the inner bottom of a first mounting groove in the reservoir base is provided with a buffer cushion, and the buffer cushion is abutted to the supporting plate; the bottom of the door leaf is provided with a water inlet groove extending upwards.

In order to improve the warning effect, preferably, the upper end of the supporting rod is rotatably connected with a warning plate, the width of one side, close to the door leaf, of the warning plate is smaller than that of the other side of the door leaf, and a warning lamp is mounted on the warning plate; and a rubber pad is arranged on one side of the supporting rod close to the door leaf.

In order to wash the sludge remained in the first mounting groove after flood discharge, preferably, a plurality of water outlets and a spray head matched with the water outlets are equidistantly arranged on the peripheral walls of the two hollow rollers, a downward bent nozzle is arranged at the output end of the spray head, and the spraying caliber of the nozzle is smaller than that of the water outlets.

In order to discharge the waste water in the first mounting groove, preferably, a water outlet pipe is connected between the reservoir base and the municipal drainage channel, a second water outlet one-way valve is mounted on the water outlet pipe, and one end of the water outlet pipe, which is located in the first mounting groove, is connected with a pump body.

When the door leaf receives hydraulic effect to rise through first connecting piece drive connecting rod, the connecting rod that rises drives the fly leaf through the second connecting piece and rises, in order not to hinder the removal of connecting rod and fly leaf, furtherly, L shape through groove has been seted up in the second mounting groove, horizon bar swing joint is in L shape through the inslot, the bar groove has been seted up in the third mounting groove, L shape vaulting pole swing joint is in the bar inslot.

Compared with the prior art, the invention provides an automatic flood discharge flap steel dam gate, which has the following beneficial effects:

1. according to the automatic flood discharge flap steel dam gate, the supporting rod pulls the pressing plate to move upwards through the L-shaped supporting rod and removes the restraint on the air bag, the air bag quickly absorbs air in the air cavity and expands, the reset spring is stressed and extruded to reduce the volume of the air cavity in the water storage tank, and therefore rainwater is sucked through the first water inlet pipe and stored; after the flood is discharged, when the flood is discharged, the gravity of the door leaves presses the air bag through the supporting rod to reset the movable plate, the water in the water storage tank is pressed into the two hollow rollers under the pressure of the movable plate, the water flow is vertically and upwards sprayed and blocked by the nozzle to force the water flow to deflect, the two hollow rollers are driven to automatically rotate under the action of the recoil force and clean sludge remained in the first mounting groove under the action of no external force, and the cleaned waste liquid is pumped back into the municipal drainage channel to be discharged under the action of the pump body, so that the labor is saved;

2. according to the automatic flood discharge flap steel dam gate, when rainwater is small, a water pit formed in a low-lying position can be completely drained through a municipal drainage channel, at the moment, a gate leaf and a warning plate can be used as a normal road for pedestrians and vehicles to pass through, and a flashing warning plate can guide the passing pedestrians and vehicles to drive into a set lane at night, so that traffic safety is effectively guaranteed; when the very big water yield of rainwater constantly rises, fill up rapidly in the municipal drainage channel and no longer exert more usefulness, and the door leaf constantly rises along with the increase of water level under hydraulic effect, when arresting the flood, the door leaf also can receive the horizontal pressure of limit, makes door leaf and reservoir base laminating, and the bracing piece rises and rotatory support door leaf along with the door leaf through first connecting piece simultaneously, strengthens the shock resistance of door leaf.

Drawings

Fig. 1 is a schematic structural view of an automatic flood discharge flap steel dam gate provided by the invention;

fig. 2 is a schematic cross-sectional structural view of an automatic flood discharge flap steel dam gate according to the present invention;

fig. 3 is a schematic structural view of a portion a in fig. 1 of an automatic flood discharge flap steel dam gate according to the present invention;

fig. 4 is a schematic structural view of a part B in fig. 2 of an automatic flood discharge flap steel dam gate according to the present invention;

fig. 5 is a schematic structural view of a part C in fig. 2 of an automatic flood discharge flap steel dam gate according to the present invention;

fig. 6 is a schematic structural view of a drainage cover of an automatic flood discharge flap steel dam gate according to the present invention.

In the figure: 1. a door leaf; 101. a water inlet groove; 2. a water storage tank; 201. a slide hole; 202. air holes; 3. a reservoir base; 301. a first mounting groove; 302. a second mounting groove; 303. a third mounting groove; 304. an L-shaped through slot; 305. a strip-shaped groove; 4. a support bar; 5. a movable plate; 6. an air chamber; 7. an air bag; 8. a hollow roll; 9. a hose; 10. a connecting shaft; 11. a gear; 12. a rack; 13. a horizontal bar; 14. a U-shaped support rod; 15. an L-shaped stay bar; 16. pressing a plate; 17. a slide bar; 18. a municipal drainage channel; 19. a drainage cover; 20. a U-shaped chute seat; 21. a water baffle; 22. an oil cylinder; 23. a second water inlet pipe; 24. a second water inlet check valve; 25. a universal rotating head; 26. a spray head; 27. a nozzle; 28. a warning panel; 29. a warning light; 30. supporting legs; 31. a support plate; 32. a cushion pad; 33. a rubber pad; 34. a water outlet pipe; 35. a water outlet one-way valve; 36. a pump body; 37. a first water inlet pipe; 38. a first water inlet check valve; 39. a return spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1:

referring to fig. 1-6, an automatic flood discharge turns over board steel dam gate, including the reservoir base 3 that has first mounting groove 301, second mounting groove 302 and third mounting groove 303, the highest horizontal plane and the road surface parallel and level of reservoir base 3, door leaf 1 slidable mounting is in first mounting groove 301, door leaf 1 can be as normal road when not having the flood, supply people to pass, be provided with storage water tank 2 in the third mounting groove 303, it has first inlet tube 37 to communicate between storage water tank 2 and the first mounting groove 301, install first check valve 38 of intaking on the first inlet tube 37, when the rainwater is very big, the flood gets into in first mounting groove 301, partly upwards lifts door leaf 1 through water pressure, play the effect of blocking, partly enters into storage water tank 2 through first check valve 38 and saves, be used for the inside of later stage to first mounting groove 301 to carry out the recoil washing, still include: the municipal drainage channel 18 is arranged outside the reservoir base 3 and used for drainage, and a complete drainage system is arranged inside the municipal drainage channel 18, so that when rainwater is small, the municipal drainage channel 18 can completely drain the water; the movable plate 5 is installed in the water storage tank 2 in a sliding mode, an air cavity 6 is reserved between the movable plate 5 and the top of the interior of the water storage tank 2, the volume of the air cavity 6 is adjusted according to the movement of the movable plate 5, an air bag 7 communicated with the air cavity 6 is installed above the movable plate 5, and the air bag 7 is used for receiving air exhausted from the air cavity 6.

Referring to fig. 2 and 3, in order to enable the air in the air bag 7 to be squeezed into the air chamber 6, a plurality of air holes 202 communicated with the air chamber 6 are formed above the water storage tank 2, and the air holes 202 are all located in the air bag 7, so that no squeezing dead angle is caused, and the rupture of the air bag 7 caused by the movable plate 5 in the squeezing air bag 7 is reduced.

A support rod 4 slidably connected in the second mounting groove 302, wherein the lower end of the support rod 4 is connected with the door leaf 1 and the movable plate 5 through a first connecting piece and a second connecting piece respectively.

Referring to fig. 1, 2 and 5, the technical solution of the supporting rod 4 is further detailed,

the upper end of bracing piece 4 is rotated and is connected with warning board 28, warning board 28 is the rectangle structure, set up the rectangular channel that supplies warning board 28 embedding on the horizontal plane of reservoir base 3, when not having the flood, in the rectangular channel of warning board 28 embedding, reduce the risk of stumbling the pedestrian, reduce dust or solid rubbish etc. and get into in the second mounting groove 302 simultaneously, influence the slip of bracing piece 4, the width that is close to door leaf 1 one side at warning board 28 is less than the opposite side, install warning light 29 on the warning board 28, warning light 29 has the scintillation function, can guide past pedestrian and vehicle to drive into established lane at night, guarantee traffic safety effectively, when the flood eruption, bracing piece 4 risees through the lifting of door leaf 1, the one side of warning board 28 broad takes place to deflect under the effect of gravity, make the rubber pad 33 that bracing piece 4 is close to one side setting of door leaf 1 offset with door leaf 1, play the supporting role to door leaf 1, improve the impacted capacity of receiving of door leaf 1, and simultaneously, the warning light 29 that risees also plays the warning door leaf 1 and the effect of reminding the back of vehicle.

Two symmetrically arranged hollow rollers 8 are connected with the water storage tank 2 through a hose 9 with a universal rotating head 25.

The air bag 7 is stressed to press the internal air back to the air cavity 6, the water is conveyed to the two symmetrically arranged hollow rollers 8 by the internal pressurization of the water storage tank 2, and the residual sludge in the first mounting groove 301 is cleaned.

It should be noted that a flood inlet pipeline is arranged on the side of the municipal drainage channel 18 away from the reservoir base 3, and is used for draining the small rainfall.

According to the use scene, when the rainwater is very small, the water pit formed at the low-lying part can be completely drained through the municipal drainage channel 18, at the moment, the door leaf 1 and the warning board 28 can be used as a normal road for pedestrians and vehicles to pass through, and the flashing warning board 28 can guide the passing pedestrians and vehicles to drive into the set lane at night, so that the traffic safety is effectively guaranteed.

When the large water volume of rainwater rises continuously, municipal drainage channel 18 is filled rapidly and no longer plays more usefulness, and door leaf 1 rises continuously along with the increase of water level under the effect of water pressure, when arresting the flood, door leaf 1 also can receive the horizontal pressure of limit, makes door leaf 1 and reservoir base 3 laminate, reduces the problem of infiltration.

After the flood is removed, the gravity of the door leaf 1 descending presses the air bag 7 through the support rod 4 to reset the movable plate 5, and the water in the water storage tank 2 is pressed into the two hollow rollers 8 under the pressure of the movable plate 5 to clean the residual sludge in the first mounting groove 301.

Referring to fig. 5, the technical solution of the first connecting member is specifically detailed.

The first connecting piece comprises a connecting shaft 10 which is rotatably connected to the supporting rod 4, a gear 11 is coaxially arranged at one end, far away from the supporting rod 4, of the connecting shaft 10, a rack 12 is arranged on the inner wall of the opening of the second mounting groove 302 through a bolt, and the rack 12 can be meshed and connected with the gear 11; one side of the door leaf 1 close to the second mounting groove 302 is fixedly connected with a horizontal rod 13, one end of the horizontal rod 13 in the second mounting groove 302 is welded with a U-shaped supporting rod 14, and the U-shaped supporting rod 14 is positioned below the connecting shaft 10.

Under the action of water pressure, the door leaf 1 rises along with the rise of the water level, the rising door leaf 1 supports the connecting shaft 10 through the U-shaped supporting rod 14, the supporting rod 4 rises together through the connecting shaft 10, the supporting rod 4 moves to the rack 12, the gear 11 at the end part of the connecting shaft 10 is meshed with the connecting shaft and drives the supporting rod 4 to rotate towards one side of the door leaf 1 through the connecting shaft 10 and abut against the side of the door leaf 1, and therefore the door leaf 1 is supported.

Please refer to fig. 2, a detailed description is made on the technical solution of the second connecting member.

The second connecting piece comprises an L-shaped stay bar 15 fixedly connected with the support bar 4, one end of the L-shaped stay bar 15 far away from the support bar 4 is fixedly connected with a pressing plate 16, and a sliding rod 17 is connected between the pressing plate 16 and the water storage tank 2; the two sides of the water storage tank 2 are symmetrically provided with sliding holes 201, and the L-shaped stay bar 15 is connected in the sliding holes 201 in a sliding way.

It should be noted that a return spring 39 is connected between the movable plate 5 and the top portion inside the water storage tank 2, and in the original state, the return spring 39 is in a stretching state, and when the support rod 4 is lifted up, the pressing plate 16 is pulled by the L-shaped support rod 15 to move upwards and release the restraint on the air bag 7, the air bag 7 quickly absorbs the air inside the air chamber 6 and expands, and the return spring 39 is pressed by force, so that the volume of the air chamber 6 inside the water storage tank 2 is reduced, and rainwater is sucked through the first water inlet pipe 37 and stored.

Referring to fig. 2 and 6, in order to further improve the lifting force of the water pressure in the first mounting groove 301, a municipal drainage channel 18 is arranged on one side of the reservoir base 3, a drainage cover 19 is mounted on the municipal drainage channel 18, a U-shaped sliding groove seat 20 is mounted below the drainage cover 19, a water baffle 21 is slidably connected in the U-shaped sliding groove seat 20, and an oil cylinder 22 is connected between the water baffle 21 and the inner wall of the municipal drainage channel 18; a second water inlet pipe 23 is connected between the municipal drainage channel 18 and the reservoir base 3, and a second water inlet check valve 24 is installed on the second water inlet pipe 23.

The oil cylinder 22 pushes the water baffle 21 to block the drainage cover 19, so that flood is only drained into the first mounting groove 301 through the second water inlet pipe 23, the water outlet potential energy is improved, and the pressurization effect is achieved.

Furthermore, the bottom of the door leaf 1 is fixedly provided with supporting legs 30, a supporting plate 31 is welded between every two adjacent supporting legs 30, a cushion pad 32 is arranged at the inner bottom of the first installation groove 301 in the reservoir base 3, and the cushion pad 32 is abutted to the supporting plate 31; the bottom of the door leaf 1 is provided with an upwardly extending water inlet groove 101.

In order to increase the contact surface between the door leaf 1 and water, improve the lifting efficiency of the door leaf 1, and simultaneously relieve the impact force of the door leaf 1 pressing down after the flood recedes, a buffer cushion 32 is installed at the inner bottom of the first installation groove 301 to eliminate partial pressure.

Example 2:

referring to fig. 1, 2 and 4, basically the same as embodiment 1, further, a plurality of water outlets and a nozzle 26 adapted to the water outlets are equidistantly arranged on the peripheral wall of the two hollow rollers 8, an output end of the nozzle 26 is provided with a nozzle 27 bent downward, wherein the ejection aperture of the nozzle 27 is smaller than that of the water outlets.

After the flood is withdrawn, the gravity of the door leaf 1 descending presses the air bag 7 through the support rod 4 to reset the movable plate 5, the water in the water storage tank 2 is pressed into the two hollow rollers 8 under the pressure of the movable plate 5, the water flow is vertically upwards sprayed and blocked by the nozzle 27 to force the water flow to deflect, and the two hollow rollers 8 are driven to automatically rotate and clean the sludge remained in the first mounting groove 301 under the action of the recoil force under the action of no external force.

Referring to fig. 2, a water outlet pipe 34 is connected between the reservoir base 3 and the municipal drainage channel 18, a second water outlet check valve 35 is installed on the water outlet pipe 34, and a pump 36 is connected to one end of the water outlet pipe 34 located in the first installation groove 301.

The cleaned waste liquid is pumped back into the municipal drainage channel 18 by the pump 36 for discharge.

Referring to fig. 2, in order not to hinder the lifting movement of the support rod 4 and the movable plate 5, an L-shaped through slot 304 is formed in the second mounting slot 302, the horizontal rod 13 is movably connected in the L-shaped through slot 304, a strip-shaped slot 305 is formed in the third mounting slot 303, and the L-shaped support rod 15 is movably connected in the strip-shaped slot 305.

Here, the overall working process is described once more throughout:

when the rainwater is in a large water quantity and continuously rises, the municipal drainage channel 18 is quickly filled with water and does not play a great role any more, the oil cylinder 22 pushes the water baffle plate 21 to block the drainage cover 19, so that the flood is only drained into the first mounting groove 301 through the second water inlet pipe 23, the water outlet potential energy is improved, the door leaf 1 continuously rises along with the increase of the water level under the action of water pressure, the flood is blocked, the door leaf 1 is also subjected to limited horizontal pressure, the door leaf 1 is attached to the reservoir base 3, the problem of permeation is reduced, the rising door leaf 1 drags the connecting shaft 10 through the U-shaped support rod 14, the support rod 4 is lifted together through the connecting shaft 10 and moves to the rack 12, the gear 11 at the end part of the connecting shaft 10 is meshed with the connecting shaft and drives the support rod 4 to rotate towards one side of the door leaf 1 through the connecting shaft 10 and abut against the same, the support rod 1 is completed, meanwhile, the rising door leaf 4 drags the air bag 7 to move upwards through the L-shaped support rod 15 pressing plate 16 and releases the restraint on the air bag 7, the air in the air chamber 6 is quickly absorbed and expanded, the reset spring 39 is squeezed by the reset spring, so that the air chamber 2, the rainwater is sucked into the water storage tank through the small volume of the first water storage water inlet pipe 37.

After the flood is discharged, when the flood is discharged, the gravity of the door leaf 1 descends presses the air bag 7 through the support rod 4 to reset the movable plate 5, the water in the water storage tank 2 is pressed into the two hollow rollers 8 under the pressure of the movable plate 5, the water is vertically and upwards sprayed but blocked by the nozzle 27 to force the water to deflect, the two hollow rollers 8 are driven to automatically rotate under the action of recoil force and clean sludge remained in the first mounting groove 301, and the cleaned waste liquid is pumped back into the municipal drainage channel 18 under the action of the pump body 36 to be discharged.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides an automatic flood discharge turns over board steel dam gate, is including reservoir base (3) that have first mounting groove (301), second mounting groove (302) and third mounting groove (303), and door leaf (1) slidable mounting is in first mounting groove (301), be provided with storage water tank (2) in third mounting groove (303), its characterized in that still includes:

a municipal drainage channel (18) arranged outside the reservoir base (3) for draining water;

the movable plate (5) is slidably mounted in the water storage tank (2), an air cavity (6) is reserved between the movable plate (5) and the inner top of the water storage tank (2), and an air bag (7) communicated with the air cavity (6) is mounted above the movable plate (5);

the lower end of the supporting rod (4) is connected with the door leaf (1) and the movable plate (5) through a first connecting piece and a second connecting piece respectively;

two symmetrically arranged hollow rollers (8) are connected with the water storage tank (2) through a hose (9) with a universal rotating head (25).

2. The gate of the automatic flood discharge flap steel dam according to claim 1, wherein the first connecting member comprises a connecting shaft (10) rotatably connected to the support rod (4), a gear (11) is coaxially installed at one end of the connecting shaft (10) far away from the support rod (4), a rack (12) is installed on the inner wall of the opening of the second installation groove (302) through a bolt, and the rack (12) can be meshed with the gear (11);

one side fixedly connected with horizon bar (13) that door leaf (1) is close to second mounting groove (302), the one end welding that horizon bar (13) is located second mounting groove (302) has U-shaped die-pin (14), U-shaped die-pin (14) are located the below of connecting axle (10).

3. The gate of the automatic flood discharge flap steel dam according to claim 2, wherein the second connecting piece comprises an L-shaped stay bar (15) fixedly connected with the support bar (4), one end of the L-shaped stay bar (15) far away from the support bar (4) is fixedly connected with a pressure plate (16), and a sliding rod (17) is connected between the pressure plate (16) and the water storage tank (2);

slide holes (201) are symmetrically formed in two sides of the water storage tank (2), and the L-shaped support rod (15) is connected in the slide holes (201) in a sliding mode.

4. The gate of the automatic flood discharge flap steel dam according to claim 3, wherein a plurality of air holes (202) communicated with the air cavity (6) are formed above the water storage tank (2), and the air holes (202) are all positioned in the air bag (7);

the water storage tank (2) is communicated with the first mounting groove (301) through a first water inlet pipe (37), and the first water inlet pipe (37) is provided with a first water inlet check valve (38).

5. The gate of the automatic flood discharge flap steel dam according to claim 1, wherein a drainage cover (19) is installed on the municipal drainage channel (18), a U-shaped chute seat (20) is installed below the drainage cover (19), a water baffle (21) is connected in the U-shaped chute seat (20) in a sliding manner, and an oil cylinder (22) is connected between the water baffle (21) and the inner wall of the municipal drainage channel (18);

and a second water inlet pipe (23) is connected between the municipal drainage channel (18) and the reservoir base (3), and a second water inlet check valve (24) is installed on the second water inlet pipe (23).

6. The automatic flood discharge flap steel dam gate as claimed in claim 1, wherein the bottom of the gate leaf (1) is fixedly provided with supporting legs (30), a supporting plate (31) is welded between the adjacent supporting legs (30), a buffer cushion (32) is arranged at the inner bottom of the first installation groove (301) in the reservoir base (3), and the buffer cushion (32) is abutted against the supporting plate (31);

the bottom of the door leaf (1) is provided with a water inlet groove (101) extending upwards.

7. The automatic flood discharge flap steel dam gate as claimed in claim 1, wherein the upper end of the support rod (4) is rotatably connected with a warning plate (28), the width of one side of the warning plate (28) close to the gate leaf (1) is smaller than that of the other side, and a warning lamp (29) is mounted on the warning plate (28);

one side of the support rod (4) close to the door leaf (1) is provided with a rubber pad (33).

8. The automatic flood discharge flap steel dam gate as claimed in claim 1, wherein a plurality of water outlets and spray heads (26) matched with the water outlets are equidistantly arranged on the peripheral wall of the two hollow rollers (8), the output ends of the spray heads (26) are provided with downward bent spray nozzles (27),

wherein the spraying aperture of the nozzle (27) is smaller than that of the water outlet.

9. The gate of the automatic flood discharge flap steel dam according to claim 1, wherein a water outlet pipe (34) is connected between the reservoir base (3) and the municipal drainage channel (18), a second water outlet check valve (35) is mounted on the water outlet pipe (34), and a pump body (36) is connected to one end of the water outlet pipe (34) positioned in the first mounting groove (301).

10. The automatic flood discharge flap steel dam gate according to claim 3, wherein an L-shaped through groove (304) is formed in the second mounting groove (302), the horizontal rod (13) is movably connected in the L-shaped through groove (304), a strip-shaped groove (305) is formed in the third mounting groove (303), and the L-shaped support rod (15) is movably connected in the strip-shaped groove (305).