CN113668460B - Flood control device for underground building entrance - Google Patents
Flood control device for underground building entrance Download PDFInfo
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- CN113668460B CN113668460B CN202111065437.XA CN202111065437A CN113668460B CN 113668460 B CN113668460 B CN 113668460B CN 202111065437 A CN202111065437 A CN 202111065437A CN 113668460 B CN113668460 B CN 113668460B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 239000005997 Calcium carbide Substances 0.000 claims abstract description 45
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical group CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 claims abstract description 45
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims abstract description 19
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 239000000126 substance Substances 0.000 claims abstract description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 39
- 229910052782 aluminium Inorganic materials 0.000 claims description 39
- 230000004308 accommodation Effects 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000006424 Flood reaction Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
- E02B3/106—Temporary dykes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10H—PRODUCTION OF ACETYLENE BY WET METHODS
- C10H19/00—Other acetylene gas generators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses an underground building entrance flood control device. The device generates gas by utilizing chemical reaction of water in flood and chemical substances; and the air pressure generated by the release of the air drives the preset structure to execute movement to form the waterproof structure, or the release of the air starts the preset structure to form the waterproof structure. The chemical substance is calcium carbide, and the calcium carbide is calcium carbide. When flood contacts calcium carbide, violent reaction occurs to release acetylene; the generation of acetylene starts or drives a preset structure to form a waterproof structure. No manual control is required and more power is available than that obtained by simply utilizing the buoyancy of water.
Description
Technical Field
The invention relates to the technical field of underground building flood control, in particular to an underground building entrance flood control device.
Background
Underground buildings such as subways and underground garages are subjected to flood; is easy to be flooded to flow backward, endangering life and property health. Current underground construction flood control devices are generally divided into two parts. The first part is that a flood barrier is arranged at the entrance of the underground building; the second part is to arrange a water pumping device or a water storage device at the lowest part of the underground building. For flood stopping devices, such as subways, steps of 30-60cm are arranged at the entrance to avoid flood entry; but if an extra flood is encountered, the possibility of being irrigated in the past. So some underground building entrances are also provided with movable flood stopping devices which are automatically started, electrically started or manually installed when flood occurs.
The automatic starting movable flood barrier is characterized in that two accommodating grooves are formed in the inlet, the bottoms of the two accommodating grooves are communicated, and a baffle plate with the mass lighter than water is placed in the accommodating groove on the inner side under the condition of the same volume, and the baffle plate can be lifted to form a water barrier after flood floods into the groove on the outer side. However, the material has high performance requirements because of lighter weight; and more silt in the flood, the breakwater is too little in buoyancy, and the breakwater can not float due to the influence of the silt in the flood.
The movable flood barrier started by the motor needs to be controlled manually, and in order to avoid short-circuiting the circuit, the motor device needs to be arranged at a higher position; the transmission distance is longer; and cannot be used if a power failure is encountered.
Manually installed flood barrier devices are too time consuming and may not be installed in an emergency.
In addition, when subjected to floods, there are often vehicles that are washed away by the water.
Disclosure of Invention
The invention aims to provide the underground building entrance flood control device which can be automatically started and has low requirements on the material of the water baffle, and the lifting force of the baffle is large during starting; an underground building entrance flood control method capable of being started automatically; a vehicle flood control method.
The invention provides a flood control method for an underground building inlet, which comprises the steps of generating gas by utilizing chemical reaction between water in flood and chemical substances; and the air pressure generated by the release of the air drives the preset structure to execute movement to form the waterproof structure, or the release of the air starts the preset structure to form the waterproof structure.
Further, the chemical substance is calcium carbide, and the calcium carbide is calcium carbide.
The beneficial effects of the technical scheme are as follows: when flood contacts calcium carbide, violent reaction occurs to release acetylene; the generation of acetylene starts or drives a preset structure to form a waterproof structure. No manual control is required and more power is available than that obtained by simply utilizing the buoyancy of water.
The invention also provides an underground building entrance flood control device, which comprises a containing groove I positioned at the underground building entrance; a water baffle is arranged in the first accommodating groove, a cylinder or an air bag is used for supporting the water baffle and the bottom of the first accommodating groove, and an air inlet of the cylinder or the air bag is communicated with the gas generator; the gas generator generates gas by utilizing chemical reaction of water in flood and chemical substances; the air pressure generated by the release of the air drives the preset structure to execute movement to form a waterproof structure; the preset structure comprises the first accommodating groove, the water baffle and one of the air cylinder and the air bag, and the waterproof structure is an integral structure of the preset structure when the air bag expands or the air cylinder stretches.
The beneficial effects of the technical scheme are as follows: when the gas generator is submerged, the generated gas jacks up the water baffle to form a water baffle structure, an external power source is not needed, and manual and active operation is not needed. The whole structure is simple and reasonable.
Further, the chemical substance is calcium carbide, and the calcium carbide is calcium carbide.
The device further comprises a second accommodating groove, wherein the second accommodating groove is positioned at the front side of the first accommodating groove, and the bottom of the second accommodating groove is communicated with the first accommodating groove; the top of the second accommodating groove is covered with a grid plate; the gas generator is positioned in the second accommodating groove.
The beneficial effects of adopting the further scheme are as follows: after flood reaches the vicinity of the inlet, the second containing groove is filled, the gas generator can be started, and the whole structure is simple and reasonable.
Further, the gas generator comprises an upper shell, a lower shell, calcium carbide and a hollow aluminum plate;
the upper shell and the lower shell are mutually fixed by screws to form an accommodating space, and the calcium carbide is placed in the accommodating space;
the upper edge of the lower shell is outwards protruded with a first protruding block, the upper surface of the first protruding block is downwards sunken with a first round hole, a circle of longitudinal protruding strips are distributed on the inner side wall of the first round hole, and a second round hole penetrating through the bottom of the first protruding block is formed in the bottom of the first round hole; the hollow aluminum plate is round, and is placed in the round hole I; the diameter of the hollow aluminum plate is larger than that of the round hole II, and the diameter of the hollow aluminum plate is smaller than that of the round hole I; the hollow aluminum plate floats and covers the second round hole; the hollow aluminum plate is arranged to float on the water surface but not on the acetylene surface, and the inside of the hollow aluminum plate is filled with gas and sealed; the overall mass is lower than the same volume of water.
The lower edge of the upper shell is outwards protruded with a second protrusion block corresponding to the first protrusion block, the lower surface of the second protrusion block is provided with an annular groove corresponding to the circle of longitudinal protrusion strips, and the annular groove is communicated with the accommodating space;
the accommodating space formed by the upper shell and the lower shell is also provided with an air outlet, and the air outlet is communicated with the air inlet of the air cylinder or the air bag through a guide pipe.
The beneficial effects of adopting the further scheme are as follows: when the flood floods the gas generator, the water pressure jack-up hollow aluminum plate, and then rivers follow round hole two in proper order, round hole one, vertical protruding strip clearance, ring channel pass through and reach accommodation space, take place the violent reaction with the carbide, release acetylene for accommodation space atmospheric pressure rises, water in the round hole one is to round hole two extrusion, the round hole one internal pressure is higher than the water pressure this moment, the flow direction of water or acetylene in the round hole one is from the top down, so hollow aluminum plate falls down, under the effect of the inside atmospheric pressure of round hole one, tightly presses on the round hole two, realize the shutoff. The water entering the accommodating space continuously reacts with the calcium carbide, the air pressure of the accommodating space continuously rises, and high-pressure gas is output from the air outlet. The whole structure is simple and reasonable. When the water tank does not occur, the hollow aluminum plate can block air circulation, so that more water vapor is prevented from entering the water tank, and the calcium carbide is prevented from being consumed. If the calcium carbide needs to be replaced, the upper shell is only required to be detached from the lower shell, and the whole structure is simple and reasonable.
Further, a third protruding block is outwards protruded at the upper edge of the lower shell, a first semicircular groove and a second semicircular groove are recessed in the upper surface of the third protruding block, the outer side of the first semicircular groove is in a plugging shape, one end of the second semicircular groove is communicated with the first semicircular groove, and the other end of the second semicircular groove is communicated with the outer side of the third protruding block; the lower edge of the upper shell is provided with a protruding block IV corresponding to the protruding block III, the protruding block IV is provided with a semicircular groove III and a semicircular groove IV corresponding to the semicircular groove I and the semicircular groove II, and the semicircular groove II and the semicircular groove IV form the air outlet hole. The pipeline that the body generator communicates with gasbag or cylinder sets up to be stereoplasm in gas generator one end to directly press from both sides it between half slot two and half slot four.
The beneficial effects of adopting the further scheme are as follows: the whole structure is simple and reasonable.
Further, a rubber ring is clamped between the upper shell and the lower shell for sealing.
The invention also provides a vehicle flood control method, which is to generate gas by utilizing chemical reaction of water and chemical substances in flood; and the air pressure generated by the release of the air drives the preset structure to execute movement to form the waterproof structure, or the release of the air starts the preset structure to form the waterproof structure.
Further, the chemical substance is calcium carbide, and the calcium carbide is calcium carbide.
The beneficial effects of the technical scheme are as follows: when flood contacts calcium carbide, violent reaction occurs to release acetylene; the generation of acetylene starts or drives a preset structure to form a waterproof structure. No manual control is required and more power is available than that obtained by simply utilizing the buoyancy of water.
Drawings
Fig. 1 is a front view of the first embodiment.
Fig. 2 is a side view of the first embodiment.
Fig. 3 is a schematic diagram of the structure of the gas generator in the first embodiment or the second embodiment.
Fig. 4 is an enlarged view at a in fig. 3.
Fig. 5 is a top view of the lower housing of fig. 3.
Fig. 6 is a front view of the second embodiment.
FIG. 7 is a side view of a second embodiment
Detailed Description
The present invention will be further described with reference to the following embodiments.
Embodiment one:
as shown in fig. 1 to 5, the present embodiment discloses an underground construction entrance flood control device, comprising a receiving tank 1 at an underground construction entrance; a water baffle 2 is arranged in the first accommodating groove 1, the water baffle 2 and the bottom of the first accommodating groove 1 are supported by a cylinder 3, and an air inlet of the cylinder 3 is communicated with a gas generator 5; the gas generator 5 generates gas by utilizing chemical reaction of water in flood and chemical substances, wherein the chemical substances are calcium carbide 53, and the calcium carbide 53 is calcium carbide; the air pressure generated by the release of the air drives the preset structure to execute movement to form a waterproof structure; the preset structure comprises a first accommodating groove 1, a water baffle 2 and a cylinder 3, and the waterproof structure is an integral structure of the preset structure when the cylinder 3 stretches. When the gas generator 5 is submerged by water, the generated gas jacks up the water baffle plate 2 to form a water baffle structure, an external power source is not needed, and manual and active operation is not needed. The whole structure is simple and reasonable.
The device further comprises a second accommodating groove 6, wherein the second accommodating groove 6 is positioned at the front side of the first accommodating groove 1, and the bottom of the second accommodating groove 6 is communicated with the first accommodating groove 1; the top of the second accommodating groove 6 is covered with a grid plate 61; the gas generator 5 is positioned in the second accommodating groove 6. After flood reaches the vicinity of the inlet, the containing groove II 6 is filled, the gas generator 5 can be started, and the whole structure is simple and reasonable.
The gas generator 5 comprises an upper shell 51, a lower shell 52, calcium carbide 53 and a hollow aluminum plate 54; a rubber ring is clamped between the upper shell 51 and the lower shell 52 for sealing; the upper shell 51 and the lower shell 52 are mutually fixed by screws to form an accommodating space, and the calcium carbide 53 is placed in the accommodating space; a first protruding block 521 protrudes outwards from the upper edge of the lower shell 52, a first round hole 522 is recessed downwards from the upper surface of the first protruding block 521, a circle of longitudinal protruding strips 523 are distributed on the inner side wall of the first round hole 522, and a second round hole 524 penetrating to the bottom of the first protruding block 521 is arranged at the bottom of the first round hole 522; the hollow aluminum plate 54 is circular, and the hollow aluminum plate 54 is placed in the round hole one 522; the diameter of the hollow aluminum plate 54 is larger than that of the round hole two 524, and the diameter of the hollow aluminum plate 54 is smaller than that of the round hole one 522; the hollow aluminum plate 54 floats on the second round hole 524; the hollow aluminum plate 54 is arranged to float on the water surface but not on the acetylene surface, and the inside of the hollow aluminum plate 54 is filled with gas and sealed; the overall mass is lower than the same volume of water. A second protruding block 525 corresponding to the first protruding block 521 protrudes outwards from the lower edge of the upper casing 51, an annular groove 526 corresponding to the first circle of longitudinal protruding strips 523 is formed in the lower surface of the second protruding block 525, and the annular groove 526 is communicated with the accommodating space; the accommodating space formed by the upper shell 51 and the lower shell 52 is also provided with an air outlet hole 55, and the air outlet hole 55 is communicated with the air inlet of the air cylinder 3 through a conduit.
When the gas generator 5 is submerged by flood, the water pressure pushes up the hollow aluminum plate 54, so that water flows sequentially pass through the round hole two 524, the round hole one 522, the gaps of the longitudinal protruding strips 523 and the annular groove 526 and reach the containing space, violent reaction is carried out with the calcium carbide 53, acetylene is released, the air pressure of the containing space is increased, water in the round hole one 522 is pressed out towards the round hole two 524, the pressure in the round hole one 522 is higher than the water pressure, the flow direction of the water or the acetylene in the round hole one 522 is from top to bottom, and therefore the hollow aluminum plate 54 falls down and is tightly pressed on the round hole two 524 under the action of the air pressure in the round hole one 522, and sealing is achieved. The water entering the accommodation space continues to react with the calcium carbide 53, the air pressure of the accommodation space continues to rise, and the high-pressure gas is output from the air outlet hole 55. The whole structure is simple and reasonable. When the water tank does not occur, the hollow aluminum plate 54 can block air circulation, so that more water vapor is prevented from entering the water tank, and the calcium carbide 53 is consumed. If the calcium carbide 53 needs to be replaced, the upper shell 51 can be replaced only by detaching the upper shell from the lower shell, and the whole structure is simple and reasonable.
The upper edge of the lower shell 52 is also outwards protruded with a protruding block III, the upper surface of the protruding block III is sunken with a semicircular groove I and a semicircular groove II, the outer side of the semicircular groove I is in a plugging shape, one end of the semicircular groove II is communicated with the semicircular groove I, and the other end of the semicircular groove II is communicated with the outer side of the protruding block III; the lower edge of the upper shell 51 is provided with a protruding block IV corresponding to the protruding block III, the protruding block IV is provided with a semicircular groove III and a semicircular groove IV corresponding to the semicircular groove I and the semicircular groove II, and the semicircular groove II and the semicircular groove IV form the air outlet hole 55. The pipe of the body generator 5 communicating with the cylinder 3 is hard at one end of the gas generator 5 and is directly sandwiched between the second half groove and the fourth half groove. The whole structure is simple and reasonable.
Embodiment two:
as shown in fig. 3 to 7, the present embodiment discloses an underground construction entrance flood control device, comprising a receiving tank 1 at an underground construction entrance; a water baffle 2 is arranged in the first accommodating groove 1, the water baffle 2 and the bottom of the first accommodating groove 1 are supported by an air bag 4, and an air inlet of the air bag 4 is communicated with a gas generator 5; the gas generator 5 generates gas by utilizing chemical reaction of water in flood and chemical substances, wherein the chemical substances are calcium carbide 53, and the calcium carbide 53 is calcium carbide; the air pressure generated by the release of the air drives the preset structure to execute movement to form a waterproof structure; the preset structure comprises a first accommodating groove 1, a water baffle 2 and an air bag 4, and the waterproof structure is an integral structure of the preset structure when the air bag 4 is inflated. When the gas generator 5 is submerged by water, the generated gas jacks up the water baffle plate 2 to form a water baffle structure, an external power source is not needed, and manual and active operation is not needed. The whole structure is simple and reasonable.
The device further comprises a second accommodating groove 6, wherein the second accommodating groove 6 is positioned at the front side of the first accommodating groove 1, and the bottom of the second accommodating groove 6 is communicated with the first accommodating groove 1; the top of the second accommodating groove 6 is covered with a grid plate 61; the gas generator 5 is positioned in the second accommodating groove 6. After flood reaches the vicinity of the inlet, the containing groove II 6 is filled, the gas generator 5 can be started, and the whole structure is simple and reasonable.
The gas generator 5 comprises an upper shell 51, a lower shell 52, calcium carbide 53 and a hollow aluminum plate 54; a rubber ring is interposed between the upper case 51 and the lower case 52 for sealing. The upper shell 51 and the lower shell 52 are mutually fixed by screws to form an accommodating space, and the calcium carbide 53 is placed in the accommodating space; a first protruding block 521 protrudes outwards from the upper edge of the lower shell 52, a first round hole 522 is recessed downwards from the upper surface of the first protruding block 521, a circle of longitudinal protruding strips 523 are distributed on the inner side wall of the first round hole 522, and a second round hole 524 penetrating to the bottom of the first protruding block 521 is arranged at the bottom of the first round hole 522; the hollow aluminum plate 54 is circular, and the hollow aluminum plate 54 is placed in the round hole one 522; the diameter of the hollow aluminum plate 54 is larger than that of the round hole two 524, and the diameter of the hollow aluminum plate 54 is smaller than that of the round hole one 522; the hollow aluminum plate 54 floats on the second round hole 524; the hollow aluminum plate 54 is arranged to float on the water surface but not on the acetylene surface, and the inside of the hollow aluminum plate 54 is filled with gas and sealed; the overall mass is lower than the same volume of water. A second protruding block 525 corresponding to the first protruding block 521 protrudes outwards from the lower edge of the upper casing 51, an annular groove 526 corresponding to the first circle of longitudinal protruding strips 523 is formed in the lower surface of the second protruding block 525, and the annular groove 526 is communicated with the accommodating space; the accommodating space formed by the upper shell 51 and the lower shell 52 is also provided with an air outlet hole 55, and the air outlet hole 55 is communicated with the air inlet of the air bag 4 through a conduit.
When the gas generator 5 is submerged by flood, the water pressure pushes up the hollow aluminum plate 54, so that water flows sequentially pass through the round hole two 524, the round hole one 522, the gaps of the longitudinal protruding strips 523 and the annular groove 526 and reach the containing space, violent reaction is carried out with the calcium carbide 53, acetylene is released, the air pressure of the containing space is increased, water in the round hole one 522 is pressed out towards the round hole two 524, the pressure in the round hole one 522 is higher than the water pressure, the flow direction of the water or the acetylene in the round hole one 522 is from top to bottom, and therefore the hollow aluminum plate 54 falls down and is tightly pressed on the round hole two 524 under the action of the air pressure in the round hole one 522, and sealing is achieved. The water entering the accommodation space continues to react with the calcium carbide 53, the air pressure of the accommodation space continues to rise, and the high-pressure gas is output from the air outlet hole 55. The whole structure is simple and reasonable. When the water tank does not occur, the hollow aluminum plate 54 can block air circulation, so that more water vapor is prevented from entering the water tank, and the calcium carbide 53 is consumed. If the calcium carbide 53 needs to be replaced, the upper shell 51 can be replaced only by detaching the upper shell from the lower shell, and the whole structure is simple and reasonable.
The upper edge of the lower shell 52 is also outwards protruded with a protruding block III, the upper surface of the protruding block III is sunken with a semicircular groove I and a semicircular groove II, the outer side of the semicircular groove I is in a plugging shape, one end of the semicircular groove II is communicated with the semicircular groove I, and the other end of the semicircular groove II is communicated with the outer side of the protruding block III; the lower edge of the upper shell 51 is provided with a protruding block IV corresponding to the protruding block III, the protruding block IV is provided with a semicircular groove III and a semicircular groove IV corresponding to the semicircular groove I and the semicircular groove II, and the semicircular groove II and the semicircular groove IV form the air outlet hole 55. The pipeline of the body generator 5 communicated with the air bag is hard at one end of the gas generator 5 and is directly clamped between the semicircular groove II and the semicircular groove IV. The whole structure is simple and reasonable.
Embodiment III:
the embodiment discloses a vehicle flood control method, which is to generate gas by utilizing chemical reaction between water in flood and chemical substances; and the air pressure generated by the release of the air drives the preset structure to execute movement to form the waterproof structure, or the release of the air starts the preset structure to form the waterproof structure. The chemical substance is calcium carbide, and the calcium carbide is calcium carbide. When flood contacts calcium carbide, violent reaction occurs to release acetylene; the generation of acetylene starts or drives a preset structure to form a waterproof structure. No manual control is required and more power is available than that obtained by simply utilizing the buoyancy of water.
The foregoing is only illustrative of the present invention and is not to be construed as limiting thereof, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present invention.
Claims (4)
1. An underground building entrance flood control device comprises a first accommodating groove positioned at an underground building entrance; the first accommodating groove is internally provided with a water baffle, and is characterized in that a cylinder or an air bag is supported between the water baffle and the bottom of the first accommodating groove, and an air inlet of the cylinder or the air bag is communicated with a gas generator; the gas generator generates gas by utilizing chemical reaction of water in flood and chemical substances; the air pressure generated by the release of the air drives the preset structure to execute movement to form a waterproof structure; the preset structure comprises a first accommodating groove, a water baffle and one of the air cylinder and the air bag, and the waterproof structure is an integral structure when the air bag in the preset structure expands or the air cylinder stretches;
the chemical substance is calcium carbide;
the gas generator comprises an upper shell, a lower shell, calcium carbide and a hollow aluminum plate;
the upper shell and the lower shell are mutually fixed by screws to form an accommodating space, and the calcium carbide is placed in the accommodating space;
the upper edge of the lower shell is outwards protruded with a first protruding block, the upper surface of the first protruding block is downwards sunken with a first round hole, a circle of longitudinal protruding strips are distributed on the inner side wall of the first round hole, and a second round hole penetrating through the bottom of the first protruding block is formed in the bottom of the first round hole; the hollow aluminum plate is round, and is placed in the round hole I; the diameter of the hollow aluminum plate is larger than that of the round hole II, and the diameter of the hollow aluminum plate is smaller than that of the round hole I; the hollow aluminum plate floats and covers the second round hole;
the lower edge of the upper shell is outwards protruded with a second protrusion block corresponding to the first protrusion block, the lower surface of the second protrusion block is provided with an annular groove corresponding to the circle of longitudinal protrusion strips, and the annular groove is communicated with the accommodating space;
the accommodating space formed by the upper shell and the lower shell is also provided with an air outlet hole, and the air outlet hole is communicated with the air inlet of the air cylinder or the air bag through a guide pipe;
when the flood floods the gas generator, the water pressure jack-up hollow aluminum plate, and then rivers follow round hole two in proper order, round hole one, vertical protruding strip clearance, ring channel pass through and reach accommodation space, take place the violent reaction with the carbide, release acetylene for accommodation space atmospheric pressure rises, water in the round hole one is to round hole two extrusion, the round hole one internal pressure is higher than the water pressure this moment, the flow direction of water or acetylene in the round hole one is from the top down, so hollow aluminum plate falls down, under the effect of the inside atmospheric pressure of round hole one, tightly presses on the round hole two, realize the shutoff.
2. The underground construction entrance flood control device of claim 1, further comprising a second receiving tank, wherein the second receiving tank is positioned at the front side of the first receiving tank, and the bottom of the second receiving tank is communicated with the first receiving tank; the top of the second accommodating groove is covered with a grid plate; the gas generator is positioned in the second accommodating groove.
3. The flood control device for the underground building entrance according to claim 1, wherein a third protruding block is further protruding outwards from the upper edge of the lower shell, a first semicircular groove and a second semicircular groove are recessed in the upper surface of the third protruding block, the outer side of the first semicircular groove is in a plugging shape, one end of the second semicircular groove is communicated with the first semicircular groove, and the other end of the second semicircular groove is communicated with the outer side of the third protruding block; the lower edge of the upper shell is provided with a protruding block IV corresponding to the protruding block III, the protruding block IV is provided with a semicircular groove III and a semicircular groove IV corresponding to the semicircular groove I and the semicircular groove II, and the semicircular groove II and the semicircular groove IV form the air outlet hole.
4. A flood protection device for an underground structure entrance according to claim 3, wherein a rubber ring is interposed between the upper and lower housings for sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111065437.XA CN113668460B (en) | 2021-09-13 | 2021-09-13 | Flood control device for underground building entrance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111065437.XA CN113668460B (en) | 2021-09-13 | 2021-09-13 | Flood control device for underground building entrance |
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| Publication Number | Publication Date |
|---|---|
| CN113668460A CN113668460A (en) | 2021-11-19 |
| CN113668460B true CN113668460B (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111065437.XA Active CN113668460B (en) | 2021-09-13 | 2021-09-13 | Flood control device for underground building entrance |
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| CN (1) | CN113668460B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116591104B (en) * | 2023-07-06 | 2023-09-29 | 南京军理科技股份有限公司 | Water retaining device for flood prevention and application method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2130816Y (en) * | 1992-04-04 | 1993-04-28 | 刘慎通 | Acetylene gas generator |
| CN202071979U (en) * | 2011-02-17 | 2011-12-14 | 陈献君 | Fully-automatic air inflation life vest |
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| CN2130816Y (en) * | 1992-04-04 | 1993-04-28 | 刘慎通 | Acetylene gas generator |
| CN202071979U (en) * | 2011-02-17 | 2011-12-14 | 陈献君 | Fully-automatic air inflation life vest |
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| CN113668460A (en) | 2021-11-19 |
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Application publication date: 20211119 Assignee: Hangzhou Yingxing Culture and Art Co.,Ltd. Assignor: ZHEJIANG TONGJI VOCATIONAL College OF SCIENCE AND TECHNOLOGY Contract record no.: X2024330000225 Denomination of invention: Underground building entrance flood control device Granted publication date: 20240123 License type: Common License Record date: 20240723 |