阅读说明：本技术 可快速锁紧并能感知水位的防洪闸门及运行方法 (Flood gate capable of being locked quickly and sensing water level and operation method ) 是由 包唐伟 董万里 宫玉强 毛延翩 席前伟 刘顶明 侯春尧 刘文忠 周益 孟春琦 于 2021-08-20 设计创作，主要内容包括：本发明提供了可快速锁紧并能感知水位的防洪闸门及运行方法,它包括用于对整个闸门进行安装的基础门框结构；所述基础门框结构上通过铰链铰接有闸门结构；所述闸门结构上固定安装有锁具安装基座,所述锁具安装基座通过滑动配合安装有水平布置的传动齿条；所述传动齿条与用于驱动其平移的动力装置相连；所述传动齿条与多组竖直锁舌组件配合相连,并驱动其实现竖向锁紧；所述竖直锁舌组件与安装在锁具安装基座上的滑动限位结构相配合；位于最边缘一侧的竖直锁舌组件上设置有横向锁舌杆。可快速的将防洪闸门投入使用,将洪水阻挡在下游侧,从而保障了水电站地下厂房的安全运行。(The invention provides a flood gate capable of being locked quickly and sensing water level and an operation method thereof, wherein the flood gate comprises a basic door frame structure for mounting the whole gate; the basic door frame structure is hinged with a gate structure through a hinge; a lock mounting base is fixedly mounted on the gate structure, and a horizontally arranged transmission rack is mounted on the lock mounting base in a sliding fit manner; the transmission rack is connected with a power device for driving the transmission rack to translate; the transmission rack is matched and connected with a plurality of groups of vertical spring bolt assemblies and drives the vertical spring bolt assemblies to realize vertical locking; the vertical spring bolt assembly is matched with a sliding limiting structure arranged on a lockset mounting base; and a transverse bolt rod is arranged on the vertical bolt assembly positioned on one side of the outermost edge. The flood control gate can be quickly put into use, flood is blocked at the downstream side, and therefore safe operation of the underground powerhouse of the hydropower station is guaranteed.)

1. Can lock fast and can perceive flood gate of water level, its characterized in that: it comprises a basic door frame structure (1) for mounting the whole gate; the basic door frame structure (1) is hinged with a gate structure (2) through a hinge (18); a lock mounting base (6) is fixedly mounted on the gate structure (2), and a horizontally arranged transmission rack (12) is mounted on the lock mounting base (6) in a sliding fit manner; the transmission rack (12) is connected with a power device for driving the transmission rack to translate; the transmission rack (12) is matched and connected with a plurality of groups of vertical bolt assemblies and drives the vertical bolt assemblies to realize vertical locking; the vertical spring bolt assembly is matched with a sliding limiting structure arranged on a lockset installation base (6); and a transverse bolt rod (16) is arranged on the vertical bolt assembly on the most edge side.

2. A floodgate according to claim 1, capable of being quickly locked and sensing water level, wherein: the basic door frame structure (1) adopts a rectangular frame structure, and mounting grooves (1-3) for fixedly connecting with a concrete wall body are formed in the middle parts of the four outer sides of the basic door frame structure (1); a plurality of vertical bolt rod clamping grooves (1-1) are uniformly distributed and processed on the top and bottom frames of the basic doorframe structure (1); a plurality of transverse bolt locking rod clamping grooves (1-2) are uniformly distributed on the vertical side frame of the basic door frame framework (1) and are positioned on the opposite side of the hinge (18).

3. A floodgate according to claim 1, capable of being quickly locked and sensing water level, wherein: the gate structure (2) comprises a gate section steel framework (2-5), and a gate plate (2-6) is fixed on the gate section steel framework (2-5); a plurality of vertical bolt locking rod through holes (2-1) are uniformly and respectively machined in the top and bottom frames of the gate section steel framework (2-5), and the vertical bolt locking rod through holes (2-1) are matched with vertical bolt locking rod clamping grooves (1-1) in the basic door frame structure (1); a plurality of uniformly distributed transverse bolt locking rod through holes (2-2) are processed on the vertical frame of the gate section steel framework (2-5) and positioned on the opposite side of the hinge (18); the transverse bolt rod through hole (2-2) adopts an L-shaped lock hole structure.

4. A floodgate according to claim 3, capable of being locked quickly and sensing water level, wherein: a perspective structure and a water level monitoring structure (4) are arranged on the gate structure (2);

the perspective structure comprises an observation hole (2-3) formed in a gate plate (2-6), an observation hole safety cover (3) is fixedly installed at the position of the observation hole (2-3), and the observation hole safety cover (3) is made of high-strength transparent toughened glass and is in a semicircular spherical shape;

the water level monitoring structure (4) comprises a water level vertical pipe (4-2) for reflecting the height of the water level, two ends of the water level vertical pipe (4-2) are fixedly connected with the gate plate (2-6) through flange seats (4-1) respectively, and the real-time height of the water level is reflected.

5. A floodgate according to claim 3, capable of being locked quickly and sensing water level, wherein: and the peripheral end face of the gate plate (2-6) is provided with a P-shaped water seal (5) matched with the basic door frame structure (1).

6. A floodgate according to claim 1, capable of being quickly locked and sensing water level, wherein: the power device comprises a driving gear (10), the driving gear (10) is in meshing transmission with a transmission rack (12), a wheel shaft of the driving gear (10) is supported between the lockset installation bases (6), and the wheel shaft of the driving gear (10) is connected with a driving hand wheel (9) and drives the driving hand wheel to rotate.

7. A floodgate according to claim 1, capable of being quickly locked and sensing water level, wherein: the vertical bolt assembly comprises vertical bolt rods (15) which are symmetrically arranged in a reverse direction, driven rack structures (17) are processed on the inner side wall of the bottom end of each vertical bolt rod (15), the two driven rack structures (17) are matched with two sides of a driven gear (14) at the same time, and the two vertical bolt rods (15) are driven to move vertically in the reverse direction; driven gear (14) and driving rack (12) meshing transmission, driven gear (14) are installed on gear shaft (13), the both ends rotation support of gear shaft (13) is between tool to lock mounting base (6).

8. A floodgate according to claim 7, capable of being locked quickly and sensing water level, wherein: the end of the vertical bolt rod (15) is in a wedge shape, and the end of the vertical bolt rod (15) is matched with a vertical bolt rod through hole (2-1) of the gate structure (2) and a vertical bolt rod clamping groove (1-1) of the basic door frame structure (1);

two ends of the gear shaft (13) are supported between the lockset installation bases (6) through bearings (11).

9. A floodgate according to claim 1, capable of being quickly locked and sensing water level, wherein: the sliding limiting structure comprises a plurality of groups of rolling shafts (7) which are symmetrically arranged, and the rolling shafts (7) are rotatably arranged between the lockset installation bases (6) through self-lubricating bearings (8); the rolling shaft (7) is in contact fit with the back of a vertical bolt rod (15) of the vertical bolt assembly.

10. A method of operating a floodgate according to any of claims 1 to 9, which is capable of being quickly locked and sensing water level, comprising the steps of:

when the gate structure (2) needs to be locked, the gate structure (2) is firstly attached to the basic door frame structure (1); then, a hand wheel (9) is driven by manual rotation, a driving gear (10) is driven by the driving hand wheel (9), a transmission rack (12) is driven by the driving gear (10), a driven gear (14) is driven by the transmission rack (12), vertical bolt rods (15) located on two sides are synchronously driven by the driven gear (14), the vertical bolt rods (15) sequentially penetrate through vertical bolt rod through holes (2-1) and vertical bolt rod clamping grooves (1-1), the gate structure (2) and the basic door frame structure (1) are locked, and meanwhile, synchronous driving transverse bolt rods (16) are inserted into transverse bolt rod through holes (2-2) of the gate structure (2) through the vertical bolt rods (15) to realize transverse locking;

when flood disasters occur, the safety cover (3) can observe the external situation through the observation hole; the water level can be observed through the water level monitoring structure (4);

when the gate structure (2) needs to be unlocked, the vertical lock tongue rod (15) and the transverse lock tongue rod (16) can be retracted through reverse operation by reversely rotating the driving hand wheel (9), and then the gate structure (2) is opened.

Technical Field

The invention belongs to the technical field of hydraulic metal structures of hydropower stations, and particularly relates to a flood gate capable of being locked quickly and sensing water level, which can be widely applied to other engineering fields needing frequent opening and closing of the flood gate.

Background

For the hydropower station designed and arranged in the structure form of an underground powerhouse, various personnel traffic holes, grouting galleries and drainage galleries are generally arranged, one ends of the traffic holes and the galleries are close to the upstream and the downstream or the side close to the river, and the other ends of the traffic holes and the galleries are connected with the powerhouse. Dividing the hydropower stations according to operation modes, and dividing the hydropower stations into flood season and non-flood season all year round, wherein in the flood season stage, as more rainwater is caused, the leakage amount of a mountain is larger, the rising change of upstream and downstream water levels is quicker, and the risk potential of flowing down rivers into a workshop exists; in the non-flood period, the flood control gate can be opened, so that personnel passing and equipment inspection work are facilitated.

At present, hydropower stations in underground powerhouses are all provided with flood gates in various structural forms to prevent larger flood from flooding the powerhouses, but locking modes after the flood gates are closed generally comprise two modes, namely, after the flood gates are closed, the flood gates are connected with a foundation in a bolt connection mode, although the flood gates can be effectively and firmly connected, manpower and material resources are wasted in the field operation process of the method, bolts and tools need to be transported to the field each time the flood gates are opened and closed, the gates are firstly tightened to the place through a manual hoist, then the bolts are installed and screwed one by one, and if the flood which suddenly comes, the flood gates cannot be quickly closed, and the setting significance of the flood gates is lost; secondly, adopt the mode of drag hook to connect, be about to the floodgate pass through the couple and connect on basic component, although this method can realize quick closing, can't be with the effectual firm connection of floodgate, can lead to the floodgate water seal volume of compression not enough and the phenomenon of leaking takes place, can't accomplish the flood control effect of real meaning. Meanwhile, the gate cannot observe the specific condition of the other side of the plugging surface after being closed, cannot judge the depth of the submerged water level, cannot pre-judge the dangerous case in time, and has certain safety risk on equipment operation.

Disclosure of Invention

In order to solve the technical problems, the invention provides a flood gate which can be locked quickly and can sense the water level and an operation method thereof, wherein the flood gate is mainly used for quickly putting the flood gate into use when flood flows backward in each traffic hole and corridor of an underground powerhouse, and blocking the flood on the downstream side, so that the safe operation of the underground powerhouse of a hydropower station is ensured; after the flood disappears, can open the flood gate again fast, provide the walking passageway for the operation personnel, be convenient for inspect the actual conditions after flooding, realized quick flood control and convenient current various demands, the water level inductor and the observation hole that simultaneously the flood gate body set up can provide one side behavior behind the observation door for the operation and maintenance personnel, and judge the dangerous situation data of water level to in time make corresponding emergent processing scheme, ensure equipment operation safety.

In order to achieve the technical features, the invention is realized as follows: the flood gate capable of being locked fast and sensing water level includes one basic frame structure for installing the whole gate; the basic door frame structure is hinged with a gate structure through a hinge; a lock mounting base is fixedly mounted on the gate structure, and a horizontally arranged transmission rack is mounted on the lock mounting base in a sliding fit manner; the transmission rack is connected with a power device for driving the transmission rack to translate; the transmission rack is matched and connected with a plurality of groups of vertical spring bolt assemblies and drives the vertical spring bolt assemblies to realize vertical locking; the vertical spring bolt assembly is matched with a sliding limiting structure arranged on a lockset mounting base; and a transverse bolt rod is arranged on the vertical bolt assembly positioned on one side of the outermost edge.

The foundation door frame structure adopts a rectangular frame structure, and mounting grooves for fixedly connecting with a concrete wall are formed in the middle parts of the four outer sides of the foundation door frame structure; a plurality of vertical bolt rod clamping grooves are uniformly and respectively machined on the top frame and the bottom frame of the basic doorframe structure; on the vertical frame of basic door frame framework to be located the opposite side of hinge, process a plurality of horizontal spring bolt pole draw-in grooves of equipartition.

The gate structure comprises a gate section steel framework, and a gate plate is fixed on the gate section steel framework; a plurality of vertical bolt rod through holes are uniformly and respectively machined in the top and bottom frames of the gate section steel frame and are matched with vertical bolt rod clamping grooves in the basic door frame structure; a plurality of uniformly distributed transverse bolt rod through holes are processed on the vertical frame of the gate section steel frame and positioned on the opposite side of the hinge; the transverse lock tongue rod through hole is of an L-shaped lock hole structure.

The gate structure is provided with a perspective structure and a water level monitoring structure;

the perspective structure comprises an observation hole processed on the gate plate, an observation hole safety cover is fixedly installed at the position of the observation hole, and the observation hole safety cover is made of high-strength transparent toughened glass and is in a semicircular spherical shape;

the water level monitoring structure comprises a water level vertical pipe used for reflecting the height of the water level, and two ends of the water level vertical pipe are fixedly connected with the gate plate through flange seats respectively and reflect the real-time height of the water level.

And a P-type water sealing strip matched with the basic door frame structure is arranged on the peripheral end face of the gate plate.

The power device comprises a driving gear, the driving gear is in meshing transmission with a transmission rack, a wheel shaft of the driving gear is supported between the lockset installation bases, and the wheel shaft of the driving gear is connected with the driving hand wheel and drives the driving hand wheel to rotate.

The vertical spring bolt assembly comprises vertical spring bolt rods which are symmetrically arranged in a reverse direction, driven rack structures are processed on the inner side wall of the bottom end of each vertical spring bolt rod, the two driven rack structures are matched with two sides of a driven gear at the same time, and the two vertical spring bolt rods are driven to move vertically in a reverse direction; the driven gear is in meshed transmission with the transmission rack, the driven gear is installed on a gear shaft, and two ends of the gear shaft are rotatably supported between the lockset installation bases.

The end of the vertical bolt rod is in a wedge shape, and the end of the vertical bolt rod is matched with a vertical bolt rod through hole of the gate structure and a vertical bolt rod clamping groove of the basic door frame structure;

two ends of the gear shaft are supported between the lockset installation bases through bearings.

The sliding limiting structure comprises a plurality of groups of rolling shafts which are symmetrically arranged, and the rolling shafts are rotatably arranged between the lockset installation bases through self-lubricating bearings; the rolling shaft is in contact fit with the back of a vertical bolt rod of the vertical bolt assembly.

The operation method of the flood gate capable of being locked quickly and sensing the water level comprises the following steps:

when the gate structure needs to be locked, the gate structure is firstly attached to the basic door frame structure; then, a hand wheel is driven by manual rotation, a driving gear is driven by the driving hand wheel, a transmission rack is driven by the driving gear, a driven gear is driven by the transmission rack, vertical spring bolt rods on two sides are synchronously driven by the driven gear, the vertical spring bolt rods sequentially penetrate through vertical spring bolt rod through holes and vertical spring bolt rod clamping grooves, a gate structure and a basic door frame structure are locked, and meanwhile, synchronously driven transverse spring bolt rods are inserted into transverse spring bolt rod through holes of the gate structure through the vertical spring bolt rods to realize transverse locking;

when flood disasters occur, the safety cover can observe the external situation through the observation hole; the water level can be observed through the water level monitoring structure;

when the gate structure needs to be unlocked, the vertical lock tongue rod and the transverse lock tongue rod can be retracted through reverse operation by reversely rotating the driving hand wheel, and then the gate structure is opened.

The invention has the following beneficial effects:

1. the flood control gate can be quickly locked and can sense the water level, the flood control gate can be quickly opened and closed according to the actual operation working conditions on site, and is put into a flood control state, the operation safety of an underground workshop is ensured, meanwhile, the operation condition of one side behind the gate can be visually observed in the closed state, the water level meter of the body can also provide the water level condition of a submerged area for maintenance personnel, the operation and maintenance management personnel can conveniently master the dangerous situation in time, and the safe operation of equipment is ensured.

2. Through foretell basic door frame structure mainly used to fix and install whole gate structure.

3. Through foretell gate structure, can customize the processing according to traffic hole or corridor actual size, can effectively shutoff entrance to a cave and corridor.

4. The operation and maintenance personnel can observe the operation condition of the external equipment facility conveniently through the perspective structure.

5. Through the water level monitoring structure, when flood enters the water level vertical pipe 4-2, the external water level height can be reflected, and the real-time height of the external water level can be visually provided for operation and maintenance personnel.

6. The P-shaped water seal strip has a good sealing effect, and the purpose of water plugging is further ensured.

7. The power device can be used for providing locking power.

8. Can be used for realizing vertical locking through foretell vertical spring bolt subassembly.

Drawings

The invention is further illustrated by the following figures and examples.

Fig. 1 is a three-dimensional view of the overall structure of the present invention.

Fig. 2 is a three-dimensional view of a basic door frame structure of the present invention.

FIG. 3 is a three-dimensional view of the gate structure of the present invention.

Fig. 4 is a three-dimensional view of the viewing port safety shield of the present invention.

Fig. 5 is a three-dimensional view of a water level monitoring structure according to the present invention.

FIG. 6 is a three-dimensional view of the P-type water sealing strip of the present invention.

Fig. 7 is an internal structure view of the lock mounting base and the latch bolt assembly of the present invention.

Fig. 8 is an overall structure view of the lock mounting base and the latch bolt assembly of the present invention.

In the figure: the lock comprises a basic door frame structure 1, a gate structure 2, an observation hole safety cover 3, a water level monitoring structure 4, a P-shaped water sealing strip 5, a lock mounting base 6, a rolling shaft 7, a self-lubricating bearing 8, a driving hand wheel 9, a driving gear 10, a bearing 11, a transmission rack 12, a gear shaft 13, a driven gear 14, a vertical lock tongue rod 15, a transverse lock tongue rod 16, a driven rack structure 17 and a hinge 18;

the lock bolt comprises a vertical lock bolt rod clamping groove 1-1, a transverse lock bolt rod clamping groove 1-2 and a mounting groove 1-3;

a vertical lock tongue rod through hole 2-1, a transverse lock tongue rod through hole 2-2, an observation hole 2-3, a gate steel frame 2-5 and a gate plate 2-6;

a flange seat 4-1 and a water level vertical pipe 4-2.

Detailed Description

Embodiments of the present invention will be further described with reference to the accompanying drawings.

Example 1:

referring to fig. 1 to 7, a floodgate capable of being quickly locked and sensing a water level includes a base frame structure 1 for installing the entire floodgate; the basic door frame structure 1 is hinged with a gate structure 2 through a hinge 18; a lock mounting base 6 is fixedly mounted on the gate structure 2, and a transmission rack 12 which is horizontally arranged is mounted on the lock mounting base 6 in a sliding fit manner; the transmission rack 12 is connected with a power device for driving the transmission rack to translate; the transmission rack 12 is matched and connected with a plurality of groups of vertical bolt assemblies and drives the vertical bolt assemblies to realize vertical locking; the vertical spring bolt assembly is matched with a sliding limiting structure arranged on a lockset installation base 6; a transverse latch bar 16 is provided on the vertical latch bolt assembly on the extreme edge side. When flood flows backward in each traffic hole and corridor of the underground powerhouse, the flood gate can be quickly put into use to block flood on the downstream side, thereby ensuring the safe operation of the underground powerhouse of the hydropower station, the device has simple structure, light self weight and convenient operation, can quickly and firmly connect the closed flood gate with a basic component, ensures that the flood gate can quickly go out to put into operation working condition, can quickly open the flood gate after the flood disappears, provides a walking channel for operators, is convenient to check the actual situation after the flood, realizes various requirements of quick flood control and convenient passage, simultaneously provides a water level sensor and an observation hole for operation and maintenance personnel to observe the operation situation on one side behind the gate and judge dangerous situation data of the water level so as to make corresponding emergency disposal schemes in time, the equipment operation safety is ensured.

Further, the basic door frame structure 1 adopts a rectangular frame structure, and mounting grooves 1-3 for fixedly connecting with a concrete wall body are arranged in the middle parts of the four outer sides of the basic door frame structure 1; a plurality of vertical bolt rod clamping grooves 1-1 are uniformly and respectively machined on the top and bottom frames of the basic doorframe structure 1; a plurality of transverse bolt locking rod clamping grooves 1-2 which are uniformly distributed are machined in the vertical frame of the basic doorframe framework 1 and are positioned on the opposite side of the hinge 18. The basic door frame structure 1 is mainly used for fixing and installing the whole gate structure. The main foundation member of the invention can be embedded and poured on a concrete wall.

Further, the gate structure 2 comprises a gate section steel framework 2-5, and a gate plate 2-6 is fixed on the gate section steel framework 2-5; a plurality of vertical bolt rod through holes 2-1 are uniformly and respectively machined in the top and bottom frames of the gate section steel frame 2-5, and the vertical bolt rod through holes 2-1 are matched with vertical bolt rod clamping grooves 1-1 in the basic door frame structure 1; a plurality of uniformly distributed through holes 2-2 of the transverse bolt rod are processed on the vertical frame of the gate steel frame 2-5 and on the opposite side of the hinge 18; the transverse lock tongue rod through hole 2-2 adopts an L-shaped lock hole structure. Through foretell gate structure 2, can customize the processing according to traffic hole or corridor actual size, can effectively shutoff entrance to a cave and corridor. The rotation is conveniently effected by means of a hinge 18.

Furthermore, a perspective structure and a water level monitoring structure 4 are arranged on the gate structure 2.

Furthermore, the perspective structure comprises an observation hole 2-3 formed in the gate plate 2-6, an observation hole safety cover 3 is fixedly installed at the position of the observation hole 2-3, and the observation hole safety cover 3 is made of high-strength transparent toughened glass and is in a semicircular spherical shape. The operation and maintenance personnel can observe the operation condition of the external equipment facility conveniently through the perspective structure.

Further, the water level monitoring structure 4 comprises a water level vertical pipe 4-2 for reflecting the height of the water level, and two ends of the water level vertical pipe 4-2 are fixedly connected with the gate plate 2-6 through a flange seat 4-1 respectively and reflect the real-time height of the water level. Through water level monitoring structure 4 can reflect outside water level height when flood gets into in water level standpipe 4-2, can directly perceivedly provide the real-time height of outside water level for fortune dimension personnel.

Furthermore, the peripheral end face of the gate plate 2-6 is provided with a P-type water sealing strip 5 which is used for being matched with the basic door frame structure 1. The P-shaped water seal strip 5 has a good sealing effect, and the purpose of water plugging is further ensured.

Further, the power device comprises a driving gear 10, the driving gear 10 is in meshing transmission with a transmission rack 12, a wheel shaft of the driving gear 10 is supported between the lockset installation bases 6, and the wheel shaft of the driving gear 10 is connected with a driving hand wheel 9 and drives the driving hand wheel to rotate. The power device can be used for providing locking power. In the course of the work, when needs lock, only need manual rotation drive hand wheel 9, drive driving gear 10 through drive hand wheel 9 drive, drive driving gear 12 through driving gear 10, and then through the vertical spring bolt subassembly of transmission rack 12 redrive.

Further, the vertical bolt assembly comprises vertical bolt rods 15 which are symmetrically arranged in a reverse direction, driven rack structures 17 are processed on the inner side wall of the bottom end of each vertical bolt rod 15, the two driven rack structures 17 are matched with two sides of the driven gear 14 at the same time, and the two vertical bolt rods 15 are driven to move vertically in the reverse direction; the driven gear 14 is in meshed transmission with the transmission rack 12, the driven gear 14 is installed on a gear shaft 13, and two ends of the gear shaft 13 are rotatably supported between the lockset installation bases 6. Can be used for realizing vertical locking through foretell vertical spring bolt subassembly. In the working process, the driving rack 12 drives the driven gear 14, and the driven gear 14 drives the two vertical bolt rods 15 meshed with the driven gear to realize telescopic motion, so that the basic door frame structure 1 and the gate structure 2 are locked.

Further, the end of the vertical bolt rod 15 is wedge-shaped, and the end of the vertical bolt rod 15 is matched with a vertical bolt rod through hole 2-1 of the gate structure 2 and a vertical bolt rod clamping groove 1-1 of the basic door frame structure 1; the end head structure ensures that the clamping head can smoothly pass through the corresponding clamping groove.

Further, both ends of the gear shaft 13 are supported between the latch mounting bases 6 through bearings 11. The bearing 11 supports the bearing, and the bearing can stably rotate.

Further, the sliding limiting structure comprises a plurality of groups of rolling shafts 7 which are symmetrically arranged, and the rolling shafts 7 are rotatably installed between the lockset installation bases 6 through self-lubricating bearings 8; the rolling shaft 7 is in contact fit with the back of a vertical bolt rod 15 of the vertical bolt assembly. Through foretell slip limit structure guaranteed the realization lift action that vertical spring bolt pole 15 can be smooth and easy.

Example 2:

the operation method of the flood gate capable of being locked quickly and sensing the water level comprises the following steps:

when the gate structure 2 needs to be locked, the gate structure 2 is firstly attached to the basic door frame structure 1; then, a hand wheel 9 is driven by manual rotation, a driving gear 10 is driven by the driving hand wheel 9, a driving rack 12 is driven by the driving gear 10, a driven gear 14 is driven by the driving rack 12, vertical bolt rods 15 positioned on two sides are synchronously driven by the driven gear 14, the vertical bolt rods 15 sequentially penetrate through vertical bolt rod through holes 2-1 and vertical bolt rod clamping grooves 1-1, a gate structure 2 and a basic door frame structure 1 are locked, and meanwhile, synchronous driving transverse bolt rods 16 are inserted into transverse bolt rod through holes 2-2 of the gate structure 2 through the vertical bolt rods 15 to realize transverse locking;

when flood disaster occurs, the safety cover 3 can observe the external situation through the observation hole; the water level can be observed through the water level monitoring structure 4;

when the gate structure 2 needs to be unlocked, the vertical latch rod 15 and the transverse latch rod 16 can be retracted through reverse operation by reversely rotating the driving hand wheel 9, and then the gate structure 2 is opened.