Emergency automatic gate opening equipment for water conservancy gate

Abstract

The invention provides emergency automatic gate opening equipment for a water conservancy gate, and relates to the technical field of water conservancy projects. A closing plate is arranged on the side, close to a water body, of the gate body. A water passing opening is formed between the lower end of the closing plate and the bottom of the gate body. The upper end of the gate main body is provided with a gate opening top seat; a suspension table is arranged on the side, opposite to the gate opening top base, of the top of the gate body, a control box is arranged on the top of the suspension table, and an on-off switch for controlling the gate opening motor is arranged at the bottom of the suspension table. According to the equipment, the emergency buffer box and the control assembly are ingeniously arranged, so that automatic monitoring of the water level and emergency opening and closing of the gate are achieved. When the water level rises to an emergency water line, water flow flows into the emergency buffer box through the overflow pipe to push the floating plate to rise, and then the on-off switch is triggered to start the door opening motor. The process does not need manual intervention, automatic operation is achieved, and the safety and the emergency response speed of water conservancy facilities are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy engineering, and in particular to an emergency automatic door opening device for a water conservancy gate. Background Art

[0002] In the field of water conservancy projects, gates are key equipment for controlling water flow, and their safety and emergency response speed are directly related to the operational safety and efficiency of the entire water conservancy facility. However, traditional gate opening and closing methods often rely on manual operation or simple mechanical transmission, which is not only inefficient, but may not respond quickly in an emergency, bringing potential safety hazards to water conservancy projects.

[0003] Especially in the face of extreme weather conditions or sudden changes in water flow, the opening and closing speed of traditional gates may not meet the needs of rapid flood discharge or water level regulation. In addition, manual operation is also susceptible to human factors, such as operational errors and untimely responses, which may increase the risks of water conservancy facilities. Summary of the invention

[0004] The present invention relates to an automatic emergency opening device for a water conservancy gate, which realizes automatic monitoring of water level and emergency opening and closing of the gate by cleverly arranging an emergency buffer box and a control component, thereby greatly improving the safety of water conservancy facilities and the emergency response speed.

[0005] The present invention provides an automatic emergency door-opening device for a water conservancy gate, specifically comprising: a gate body; a closing plate is provided on the side of the gate body close to the water body, and a water outlet is formed between the lower end of the closing plate and the bottom of the gate body; the upper end of the gate body is a gate-opening top seat; a suspension platform is provided on the side of the top of the gate body opposite to the gate-opening top seat, a control box is provided on the top of the suspension platform, and an opening and closing switch for controlling the gate-opening motor is provided at the bottom of the suspension platform; overflow pipes for discharge are pre-buried at positions above the emergency water level line at the left and right ends of the gate body corresponding to the emergency water level line; an emergency buffer box is fixedly mounted on the side of the gate body away from the water body, and a control component is vertically provided at the middle part of the outer end of the emergency buffer box; a drainage pipe for emptying the water in the box is provided at the bottom of the emergency buffer box; a horizontal floating plate is provided in the emergency buffer box.

[0006] Optionally, a gate plate is vertically and slidably installed in the gate body. On the upper end of the gate plate, lifting screws are symmetrically and vertically arranged on the left and right. The lifting screws vertically pass through the top end of the gate body upward. An opening motor is arranged on the lifting top seat. A driving bevel gear is arranged at the end of the rotating shaft of the opening motor. On the gate body corresponding to the inner edge of the lifting top seat, conversion seats are horizontally distributed. A conversion shaft is rotatably installed on the conversion seat. A driven bevel gear meshing with the driving bevel gear is arranged in the middle of the conversion shaft. First bevel gears are respectively fixed at both ends of the conversion shaft. Second bevel gears are arranged on the conversion seats outside the first bevel gears. The second bevel gears are vertically meshed with the first bevel gears. The lifting screws are also rotationally and threadedly connected with the second bevel gears. When the opening motor works, it drives the conversion shaft. The rotation of the conversion shaft drives the second bevel gears, controlling the vertical movement of the lifting screws and the vertical opening and closing of the gate plate.

[0007] Optionally, the end of the overflow pipe away from the water body extends to the upper end of the inner cavity of the emergency buffer tank.

[0008] Optionally, a partition is vertically arranged on one side of the inner cavity of the emergency buffer tank close to the gate body. The upper end of the partition is fixedly connected to the top of the inner cavity of the emergency buffer tank. A gap through which water can pass is left between the lower end of the partition and the bottom surface of the inner cavity of the emergency buffer tank. The cavity outside the partition is the activity space for the floating plate.

[0009] Optionally, the control component is in a "C" shape. The upper end of the control component is vertically and slidably connected to the top of the emergency buffer tank through a sleeve block. And the end of the upper end of the control component is a lock head cut obliquely downward. A pull rod is also vertically arranged at the position of the control component opposite to the sleeve block. The pull rod vertically slides through the sleeve block. A stop disc is arranged at the end of the pull rod. A spring that always provides a pulling force towards the emergency buffer tank side for the control component is sleeved on the pull rod between the stop disc and the sleeve block.

[0010] Optionally, a sealing plate is vertically arranged at the position of the lower end of the control component corresponding to the bottom plate of the inner cavity of the emergency buffer tank. The sealing plate is distributed along the bottom surface of the inner cavity of the emergency buffer tank. A water discharge port is vertically penetrated through the sealing plate in the emergency buffer tank. When the control component is in the position closest to the emergency buffer tank, the water discharge port is aligned with the drain pipe to drain the water in the emergency buffer tank. When the control component is in the position far from the emergency buffer tank, the sealing plate blocks the drain pipe. A magnetic plate is fixedly arranged at the end of the lower end of the control component facing the drain pipe.

[0011] Optionally, a water wheel for converting water energy into mechanical energy is rotatably installed horizontally in the drain pipe. A generator connected to the water wheel is fixedly installed on the outer wall of the drain pipe. An energy storage box for storing electric energy is also fixedly hung on the outer wall of the drain pipe above the generator. An electromagnet is fixedly provided at a position on the drain pipe opposite to the magnetic plate. When the water wheel stops rotating and the generator does not generate current, that is, when the water level in the gate returns below the emergency water level, the electromagnet works for at least three seconds to generate a magnetic force for repelling the magnetic plate, causing the control assembly to move outwards, and the floating plate to partially fall back to its reset position.

[0012] Optionally, a push column is vertically provided upwards in the middle of the upper end of the floating plate. There is a directional slideway corresponding to the lock head. The end of the lock head is slidably clamped in the directional slideway to prevent it from coming out. A lock groove for the lock head to insert and fix the position of the push column is opened at a position below the middle of the directional slideway. When the floating plate rises under the push of water and the push column moves upwards, when the lock head inserts into the lock groove, the upper end of the push column contacts the opening and closing switch, and the gate opening motor works, causing the gate plate to move upwards to drain water. When the water level inside the gate is lower than the overflow pipe, no water enters the emergency buffer tank, the drain pipe is emptied, the electromagnet works, the control assembly is pushed outwards, the floating plate and the push column fall back to their reset positions, and the control assembly resets under the action of the spring.

[0013] The present invention provides a water conservancy gate emergency automatic gate opening device, which has the following beneficial effects: First of all, through the ingenious setting of the emergency buffer tank and the control assembly, the device realizes the automatic monitoring of the water level and the emergency opening and closing of the gate. When the water level rises to the emergency water level line, the water flow flows into the emergency buffer tank through the overflow pipe, pushing the floating plate to rise, and then triggering the opening and closing switch to start the gate opening motor. This process does not require manual intervention, realizing automatic operation, and greatly improving the safety and emergency response speed of water conservancy facilities.

[0014] Secondly, the transmission mechanism of the device is reasonably designed. The gate opening motor drives the vertical movement of the gate opening screw rod through the meshing transmission of the driving bevel gear, the conversion shaft, the first bevel gear and the second bevel gear, driving the gate plate to rise to open the gate. This transmission method has a compact structure and high transmission efficiency, ensuring that the gate can be quickly and accurately opened in an emergency.

[0015] In addition, the partition design in the emergency buffer tank not only ensures that the water flow can smoothly enter the emergency buffer tank, but also avoids the direct impact of the water flow on the floating plate, improving the stability and reliability of the device. At the same time, the "C"-shaped structure of the control assembly and the setting of the spring enable the control assembly to maintain a stable movement trajectory when subjected to external forces and quickly reset after the external forces disappear.

[0016] In terms of drainage, the device realizes the conversion and utilization of water energy through the combination of water wheel, generator and electromagnet. When the water wheel in the drain pipe stops rotating due to no water flow, the generator no longer generates current. At this time, the electromagnet works to generate repulsive force, pushing the control component outward, so that the drain port and the drain pipe are aligned, thereby draining the water in the emergency buffer tank. This process not only realizes the conversion and utilization of water energy, but also improves the automation and intelligence level of the equipment.

[0017] Finally, the device is also equipped with structures such as a push column and a directional slideway to further improve the stability and accuracy of the device. The rise of the push column can directly trigger the opening and closing switch, avoiding misoperation caused by water level fluctuations. The directional slideway can ensure that the lock head maintains a stable movement trajectory when inserted into the lock slot, avoiding falling off or damage caused by shaking.

[0018] To sum up, the emergency automatic opening equipment for water conservancy gates proposed in the present invention has the advantages of high degree of automation, high transmission efficiency, compact structure, stability and reliability, etc. It can effectively improve the safety and emergency response speed of water conservancy facilities and provide a strong guarantee for the safe operation of water conservancy projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0020] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0021] In the attached picture: Figure 1 A schematic diagram of the first axial view of the present invention is shown; Figure 2 The present invention shows Figure 1 A is a schematic diagram of the structure of the enlarged part; Figure 3 A second axial structural schematic diagram of the present invention is shown; Figure 4 A third axial structural schematic diagram of the present invention is shown; Figure 5 The present invention shows Figure 4 Middle B is a schematic diagram of the structure of the enlarged part; Figure 6 It shows a schematic diagram of the axial structure of the emergency buffer box shell in a half-section state of the present invention; Figure 7 It shows a schematic diagram of the axial structure of the control assembly and the emergency buffer box of the present invention in a state of being separated; Figure 8 The schematic diagram of the axial structure of the emergency buffer box of the present invention in the removed state is shown.

[0022] Reference numerals list 1. Gate body; 101. Overflow pipe; 2. Closed plate; 3. Gate; 301. Door opening screw; 4. Open the door and top seat; 5. Door opening motor; 501. Driving bevel gear; 6. conversion seat; 601. conversion shaft; 601. driven bevel gear; 6012. first bevel gear; 602. second bevel gear; 7. Suspension platform; 701. Opening and closing switch; 8. Control box; 9. Emergency buffer box; 901. Partition; 10. Control assembly; 1001. Block; 1002. Closing plate; 10021. Drain port; 1003. Pull rod; 1004. Spring; 1005. Magnetic plate; 1006. Lock; 11. Drain pipe; 1101. Water wheel; 1102. Generator; 1103. Energy storage box; 1104. Electromagnet; 12. Floating plate; 1201. Push column; 1202. Directional slide; 1203. Locking groove. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1: Please refer to Figures 1 to 8 : The present invention proposes an emergency automatic gate opening device for a water conservancy gate, comprising: a gate body 1; a closing plate 2 is provided on the side of the gate body 1 close to the water body, and a water inlet is formed between the lower end of the closing plate 2 and the bottom of the gate body 1; the upper end of the gate body 1 is a gate opening top seat 4; a hanging platform 7 is provided on the side of the top of the gate body 1 opposite to the gate opening top seat 4, a control box 8 is provided on the top of the hanging platform 7, and an opening and closing switch 701 for controlling the gate opening motor 5 is provided at the bottom of the hanging platform 7; the left and right ends of the gate body 1 are pre-buried at positions corresponding to the positions above the emergency water level line. There is an overflow pipe 101 for discharge; an emergency buffer box 9 is fixedly mounted on the side of the gate body 1 away from the water body, and a control component 10 is vertically provided at the middle of the outer end of the emergency buffer box 9; a drain pipe 11 for draining water from the box is provided at the bottom of the emergency buffer box 9; a horizontal floating plate 12 is provided in the emergency buffer box 9. Under normal conditions, the gate plate 3 closes the water outlet of the gate body 1 to prevent the flow of water. When the water level rises to the emergency water level line, the water flows into the emergency buffer box 9 through the overflow pipe 101 pre-buried at the left and right ends of the gate body 1.

[0025] Among them, a gate plate 3 is vertically slidably installed in the gate body 1, and a door opening screw rod 301 is vertically upwardly provided at the upper end of the gate plate 3 symmetrically, and the door opening screw rod 301 vertically passes through the top of the gate body 1 upward, and a door opening motor 5 is provided on the door opening top seat 4, and a driving bevel gear 501 is provided at the end of the rotating shaft of the door opening motor 5. A conversion seat 6 is horizontally distributed on the gate body 1 corresponding to the inner end edge of the door opening top seat 4, and a conversion shaft 601 is rotatably installed on the conversion seat 6, and the middle part of the conversion shaft 601 is provided with a gear meshing with the driving bevel gear 501. The driven bevel gear 6011 of the conversion shaft 601 is respectively fixed with a first bevel gear 6012 at both ends, and a second bevel gear 602 is provided on the conversion seat 6 outside the first bevel gear 6012. The second bevel gear 602 is vertically meshed with the first bevel gear 6012, and the door-opening screw rod 301 is screwed with the second bevel gear 602 for rotation. The door-opening motor 5 drives the conversion shaft 601 when it works, and the conversion shaft 601 rotates to drive the second bevel gear 602 to control the vertical movement of the door-opening screw rod 301, and the gate plate 3 is vertically opened and closed.

[0026] Among them, one end of the overflow pipe 101 away from the water body extends to the upper end of the inner cavity of the emergency buffer box 9.

[0027] Among them, a partition 901 is vertically provided on one side of the inner cavity of the emergency buffer box 9 close to the gate body 1, the upper end of the partition 901 is fixedly connected to the top of the inner cavity of the emergency buffer box 9, and a gap is left between the lower end of the partition 901 and the bottom surface of the inner cavity of the emergency buffer box 9 for water to pass through, and the cavity outside the partition 901 is the activity space of the floating plate 12.

[0028] Among them, the control component 10 is in a "C" shape. The upper end of the control component 10 is vertically and slidably connected to the top of the emergency buffer box 9 through a sleeve block 1001. And the end of the upper end of the control component 10 is a lock head 1006 that is obliquely cut downward. At a position on the control component 10 opposite to the sleeve block 1001, a pull rod 1003 is vertically provided. The pull rod 1003 vertically slides through the sleeve block 1001. A stop plate is provided at the end of the pull rod 1003. A spring 1004 that always provides a pulling force to the side of the emergency buffer box 9 for the control component 10 is sleeved on the pull rod 1003 between the stop plate and the sleeve block 1001.

[0029] Among them, a sealing plate 1002 is vertically provided at a position corresponding to the inner cavity bottom plate of the emergency buffer box 9 at the lower end of the control component 10. The sealing plate 1002 is distributed along the inner cavity bottom surface of the emergency buffer box 9. A water discharge port 10021 is vertically penetrated on the sealing plate 1002 in the emergency buffer box 9. When the control component 10 is in the position closest to the emergency buffer box 9, the water discharge port 10021 is aligned with the drain pipe 11 for discharging the water in the emergency buffer box 9. When the control component 10 is in a position far from the emergency buffer box 9, the sealing plate 1002 blocks the drain pipe 11. A magnetic plate 1005 is fixedly provided at one end of the lower end of the control component 10 facing the drain pipe 11.

[0030] Among them, a water wheel 1101 for converting water energy into mechanical energy is horizontally rotatably installed in the drain pipe 11. A generator 1102 connected to the water wheel 1101 is fixedly installed on the outer wall of the drain pipe 11. An energy storage box 1103 for storing electric energy is also fixedly hung on the outer wall of the drain pipe 11 above the generator 1102. An electromagnet 1104 is fixedly provided at a position on the drain pipe 11 opposite to the magnetic plate 1005. When the water wheel 1101 stops rotating and the generator 1102 does not generate current, that is, when the water level in the gate returns below the emergency water level, the electromagnet 1104 works for at least three seconds to generate a magnetic force for repelling the magnetic plate 1005, and the control component 10 moves outward, and part of the floating plate 12 falls back to reset.

[0031] Embodiment 2, on the basis of embodiment 1, a push column 1201 is vertically provided upwardly in the middle of the upper end of the floating plate 12, and a directional slideway 1202 corresponding to the push column 1201 and the lock head 1006 is provided. The end of the lock head 1006 is slidably engaged in the directional slideway 1202 to prevent it from falling out, and a lock groove 1203 for the lock head 1006 to be inserted into the fixed push column 1201 position is provided at the lower middle part of the directional slideway 1202. The floating plate 12 rises under the push of water, and the push column 1201 is provided. When the column 1201 moves upward and the lock head 1006 is inserted into the lock slot 1203, the upper end of the push column 1201 contacts the opening and closing switch 701, the door opening motor 5 works, the gate plate 3 moves upward, and water is discharged. When the water level inside the gate is lower than the overflow pipe 101, no water enters the emergency buffer box 9, the drain pipe 11 is emptied, the electromagnet 1104 works, the control component 10 is pushed outward, the floating plate 12 and the push column 1201 return to their original position and fall back, and the control component 10 is returned to its original position under the action of the spring 1004.

[0032] The working principle of this embodiment: Under normal conditions, the gate plate 3 closes the water inlet of the gate body 1 to prevent water from flowing. When the water level rises to the emergency water level, the water flows into the emergency buffer box 9 through the overflow pipes 101 pre-buried at the left and right ends of the gate body 1.

[0033] As the water level in the emergency buffer box 9 rises, the floating plate 12 rises accordingly. The push column 1201 at the upper end of the floating plate 12 also rises accordingly, and the directional slide 1202 thereon interacts with the lock head 1006 at the upper end of the control assembly 10. When the water level is high enough, the push column 1201 moves up to a certain position, and the lock head 1006 is inserted into the lock groove 1203 in the middle of the directional slide 1202. At this time, the upper end of the push column 1201 contacts the on-off switch 701 on the suspension platform 7, triggering the on-off switch 701.

[0034] After the opening and closing switch 701 is triggered, the door opening motor 5 starts to work. The rotating shaft of the door opening motor 5 drives the driving bevel gear 501 to rotate, and the driving bevel gear 501 is meshed with the driven bevel gear 6011 on the conversion seat 6, thereby driving the conversion shaft 601 to rotate. The first bevel gears 6012 at both ends of the conversion shaft 601 are respectively vertically meshed with the two second bevel gears 602, and the second bevel gears 602 rotate and screw the door opening screw rod 301. Therefore, the work of the door opening motor 5 will be converted into the vertical movement of the door opening screw rod 301, thereby driving the gate plate 3 to move up, realizing the opening of the gate, and allowing the water body to discharge through the water outlet.

[0035] When the water level inside the gate is lower than the overflow pipe 101, the emergency buffer box 9 no longer takes in water. At this time, the water wheel 1101 in the drain pipe 11 stops rotating due to the lack of water flow, and the generator 1102 no longer generates current. At this time, the electromagnet 1104 works for at least three seconds, generating a magnetic force that repels the magnetic plate 1005. The magnetic plate 1005 is fixedly connected to the lower end of the control component 10, so the repulsive force of the electromagnet 1104 causes the control component 10 to move outward, and the drain port 10021 on the sealing plate 1002 is aligned with the drain pipe 11, and the water in the emergency buffer box 9 is discharged.

[0036] As the water level in the emergency buffer box 9 drops, the floating plate 12 and the push column 1201 thereon also fall back and reset. At the same time, under the pulling force of the spring 1004, the control assembly 10 also resets to a position close to the emergency buffer box 9, and the sealing plate 1002 blocks the drain pipe 11 again. At this time, the entire device returns to the initial state, waiting for the next emergency door opening operation.

[0037] In this article, there are a few points to note: 1. The drawings of the embodiments of the present invention only involve structures related to the embodiments of the present invention, and other structures can refer to the general design.

[0038] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0039] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydraulic gate emergency automatic door opening device, comprising: A gate body (1); a closing plate (2) is provided on the side of the gate body (1) close to the water body, and a water outlet is formed between the lower end of the closing plate (2) and the bottom of the gate body (1); the upper end of the gate body (1) is a gate opening seat (4); a suspension platform (7) is provided on the top of the gate body (1) opposite to the gate opening seat (4), a control box (8) is provided on the top of the suspension platform (7), and an opening and closing switch (701) for controlling a gate opening motor (5) is provided on the bottom of the suspension platform (7); overflow pipes (101) for discharging are pre-buried at positions above the emergency water level line at the left and right ends of the gate body (1); an emergency buffer box (9) is fixedly mounted on the side of the gate body (1) away from the water body, and a control assembly (10) is vertically provided at the middle of the outer end of the emergency buffer box (9); a drainage pipe (11) for draining water from the box is provided at the bottom of the emergency buffer box (9); and a horizontal floating plate (12) is provided in the emergency buffer box (9).

2. The emergency automatic door opening device for water conservancy gates according to claim 1 is characterized in that: A gate plate (3) is vertically slidably mounted in the gate body (1), and a door-opening screw rod (301) is symmetrically arranged vertically upward at the upper end of the gate plate (3). The door-opening screw rod (301) vertically passes through the top of the gate body (1) upward, and a door-opening motor (5) is arranged on the door-opening top seat (4). A driving bevel gear (501) is arranged at the end of the rotating shaft of the door-opening motor (5). A conversion seat (6) is horizontally distributed on the gate body (1) corresponding to the inner end edge of the door-opening top seat (4). A conversion shaft (601) is rotatably mounted on the conversion seat (6), and a gear (601) is arranged in the middle of the conversion shaft (601) to mesh with the driving bevel gear (501). The first bevel gear (6012) is fixedly provided at both ends of the conversion shaft (601), and a second bevel gear (602) is provided on the conversion seat (6) outside the first bevel gear (6012). The second bevel gear (602) is vertically meshed with the first bevel gear (6012). The door opening screw rod (301) is rotatably screwed with the second bevel gear (602). The door opening motor (5) drives the conversion shaft (601) when it works, and the conversion shaft (601) rotates to drive the second bevel gear (602), thereby controlling the door opening screw rod (301) to move vertically, and the gate plate (3) to open and close vertically.

3. The emergency automatic door opening device for water conservancy gates according to claim 1 is characterized in that: One end of the overflow pipe (101) away from the water body extends to the upper end of the inner cavity of the emergency buffer box (9).

4. The emergency automatic door opening device for water conservancy gates according to claim 1 is characterized in that: A partition plate (901) is vertically provided on one side of the inner cavity of the emergency buffer box (9) close to the gate body (1); the upper end of the partition plate (901) is fixedly connected to the top of the inner cavity of the emergency buffer box (9); a gap through which water can flow is left between the lower end of the partition plate (901) and the bottom surface of the inner cavity of the emergency buffer box (9); and the cavity outside the partition plate (901) is a movable space for the floating plate (12).

5. The emergency automatic door opening device for water conservancy gates according to claim 1 is characterized in that: The control component (10) is in a "C"-shaped structure. The upper end of the control component (10) is vertically and slidably connected to the top of the emergency buffer box (9) through a sleeve block (1001). The end of the upper end of the control component (10) is a lock head (1006) that is cut obliquely downward. At a position on the control component (10) opposite to the sleeve block (1001), a pull rod (1003) is vertically provided. The pull rod (1003) vertically slides through the sleeve block (1001). A stop disc is provided at the end of the pull rod (1003). A spring (1004) that always provides a pulling force to the side of the emergency buffer box (9) for the control component (10) is sleeved on the pull rod (1003) between the stop disc and the sleeve block (1001).

6. The automatic emergency door opening device for water conservancy gates according to claim 3 is characterized in that: At a position corresponding to the inner cavity bottom plate of the emergency buffer box (9) at the lower end of the control component (10), a sealing plate (1002) is vertically provided. The sealing plate (1002) is distributed along the inner cavity bottom surface of the emergency buffer box (9). A water discharge port (10021) is vertically penetrated on the sealing plate (1002) in the emergency buffer box (9). When the control component (10) is in the position closest to the emergency buffer box (9), the water discharge port (10021) is aligned with the drain pipe (11) to drain the water in the emergency buffer box (9). When the control component (10) is in a position far from the emergency buffer box (9), the sealing plate (1002) blocks the drain pipe (11). A magnetic plate (1005) is fixedly provided at one end of the lower end of the control component (10) facing the drain pipe (11).

7. The automatic emergency door opening device for water conservancy gates according to claim 6 is characterized in that: A water wheel (1101) for converting water energy into mechanical energy is horizontally rotatably installed in the drain pipe (11). A generator (1102) connected to the water wheel (1101) is fixedly installed on the outer wall of the drain pipe (11). An energy storage box (1103) for storing electric energy is also fixedly hung on the outer wall of the drain pipe (11) above the generator (1102). An electromagnet (1104) is fixedly provided at a position on the drain pipe (11) opposite to the magnetic plate (1005). When the water wheel (1101) stops rotating and the generator (1102) does not generate current, that is, when the water level in the gate returns below the emergency water level, the electromagnet (1104) works for at least three seconds to generate a magnetic force for repelling the magnetic plate (1005), and the control component (10) moves outward, and part of the floating plate (12) returns to its original position.

8. The automatic emergency door opening device for water conservancy gates according to claim 7 is characterized in that: A push column (1201) is vertically arranged upward in the middle of the upper end of the floating plate (12), and a directional slideway (1202) corresponding to the push column (1201) and the lock head (1006) is provided. The end of the lock head (1006) is slidably engaged in the directional slideway (1202) to prevent it from falling out. A lock groove (1203) for inserting the lock head (1006) into the fixed position of the push column (1201) is provided at the lower middle part of the directional slideway (1202). The floating plate (12) rises under the push of water, the push column (1201) moves upward, and the lock head (1006) is locked in the directional slideway (1202). When the head (1006) is inserted into the lock slot (1203), the upper end of the push column (1201) contacts the opening and closing switch (701), the door opening motor (5) works, the gate plate (3) moves upward, and water is discharged. When the water level inside the gate is lower than the overflow pipe (101), no water enters the emergency buffer box (9), the drainage pipe (11) is emptied, the electromagnet (1104) works, the control component (10) is pushed outward, the floating plate (12) and the push column (1201) are reset and fall back, and the control component (10) is reset under the action of the spring (1004).

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