Airtight floor drain device for ship

Abstract

The utility model discloses a ship airtight floor drain device which is installed on a deck of a cabin, the deck is provided with a drainage hole, the ship airtight floor drain device comprises a main body, a floor drain plate and a floating ball, the main body is provided with a pipe cavity, a water inlet and a drainage port, the main body is installed on the drainage hole, and the water inlet is located at one end, facing the cabin, of the drainage hole and communicated with the pipe cavity. The water outlet is located at the end, away from the cabin, of the water outlet hole and communicated with the water inlet through a pipe cavity, the floating ball is arranged in the pipe cavity, and the floor drain plate covers the water inlet; when water in the pipe cavity overflows the floating ball, the floating ball floats under the action of buoyancy so as to open the water outlet; when the cabin is filled with protective gas, the floating ball is pressed to block the water outlet so as to cut off gas circulation between the water outlet and the outside. When CO2 is released in the cabin for fire extinguishing, the situation that gas leaks from the floor drain can be avoided, the fire extinguishing efficiency and safety are improved, and meanwhile the waterproof and airtight performance of the cabin is kept.

Description

TECHNICAL FIELD

[0001] The utility model relates to the air tightness technical field of ship cabin floor drain, especially to a ship air tight floor drain device. BACKGROUND

[0002] With the ship as the important traffic tool of the world, its safety on the sea, especially the importance of fire prevention, fireproofing and fire extinguishing measures, is increasingly highlighted. The ship cabin design usually contains floor drain facilities, which exist not only in the living area, but also are arranged in the mechanical place, for draining the water flow to the outside. However, when facing the sudden fire in the cabin, the way of releasing CO2 gas or water mist becomes a common fire extinguishing means.

[0003] In the case of using CO2 gas for fire extinguishing, in order to effectively block the fire and prevent the leakage of CO2 gas, all communication pipelines with the outside, including water pipes and air pipes, need to be cut off, so as to ensure that the oxygen supply is interrupted while the CO2 gas can play a fire extinguishing role in the closed space. However, the floor drain in the cabin is installed with an ordinary floor drain plate, which does not have air tightness, resulting in the leakage of CO2 gas during fire extinguishing. SUMMARY

[0004] The technical problem to be solved by the utility model is that the floor drain in the cabin does not have air tightness, resulting in the leakage of CO2 gas during fire extinguishing, and the fire extinguishing effect is poor.

[0005] In order to solve the above technical problem, the utility model provides a ship air tight floor drain device, which is installed on the deck of the cabin. The deck has a drain hole. The ship air tight floor drain device comprises a main body, a floor drain plate and a floating ball. The main body has a cavity, a water inlet and a drain outlet. The main body is installed in the drain hole. The water inlet is located at one end of the drain hole facing the cabin and is in communication with the cavity. The drain outlet is located at one end of the drain hole away from the cabin and is in communication with the water inlet through the cavity. The floating ball is arranged in the cavity. The floor drain plate is arranged on the water inlet.

[0006] When the water in the cavity overflows the floating ball, the floating ball is floated by the buoyancy to open the drain outlet. When the cabin is filled with protective gas, the floating ball is pressed to block the drain outlet to cut off the gas flow between the drain hole and the outside.

[0007] Further, the main body comprises a support plate, which is arranged on the inner wall of the cavity and is located at one end close to the drain outlet. The support plate has a through hole for water flow. The diameter of the through hole is smaller than the diameter of the floating ball. The through hole is configured to place the floating ball.

[0008] Further, the support plate is arranged parallel to the deck, or the support plate is arranged to be inclined towards the drain port.

[0009] Further, the main body further comprises a sealing ring, which is arranged on the side of the support plate away from the inner wall of the tube cavity.

[0010] Further, the main body further comprises a locking member, the support plate is provided with a mounting hole matched with the locking member, and the sealing ring is fixed to the support plate through the locking member.

[0011] Further, the main body further comprises a tube body and a seat plate, the seat plate is installed below the deck and located in the drain hole, the tube body is connected to the side of the seat plate away from the deck, and the tube body has the tube cavity, the water inlet and the drain port.

[0012] Further, the aperture of the seat plate is smaller than the aperture of the drain hole to form a stepped structure, and the floor drain plate is arranged on the stepped structure.

[0013] Further, the floating ball is a hollow structure and is made of stainless steel.

[0014] Further, the diameter of the floating ball is greater than or equal to 150 mm, and the wall thickness of the floating ball is less than or equal to 3 mm.

[0015] Further, the floor drain plate has a plurality of water passing holes arranged at intervals.

[0016] Compared with the prior art, the ship air-tight floor drain device has the beneficial effects that:

[0017] When water drainage is not needed, the floating ball is blocked in the drain port due to its own gravity; when water drainage is needed, water flows along the deck to the water inlet, and when the water level in the tube cavity rises and overflows the floating ball, the floating ball rises due to buoyancy and opens the drain port, so that water can flow out of the cabin through the drain port; when a fire breaks out in the cabin, the cabin is filled with protective gas, the pressure in the cabin increases, the floating ball starts to descend and block the drain port due to the pressure and its own gravity, thereby cutting off the gas circulation between the drain hole and the outside, and preventing the protective gas from leaking. Understandably, when the protective gas such as CO2 is released in the cabin to extinguish the fire, the embodiment can avoid the situation that the gas leaks from the floor drain, and the sealing operation can be automatically completed without manual intervention, thereby improving the fire extinguishing efficiency and safety, and maintaining the waterproof and air-tight performance of the cabin. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be described in further detail below in conjunction with the preferred embodiments and the accompanying drawings, but those skilled in the art will appreciate that the drawings are only for the purpose of explaining the preferred embodiments and thus should not be construed as limiting the scope of the present application. In addition, unless specifically indicated, the drawings are only intended to conceptually represent the composition or configuration of the described objects and can include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0019] Figure 1 is a structural schematic diagram of a ship air-tight floor drain device provided by an embodiment of the present application;

[0020] Figure 2 is a water drainage state schematic diagram of a ship air-tight floor drain device provided by an embodiment of the present application;

[0021] Figure 3 is a state schematic diagram of a ship air-tight floor drain device when a cabin is extinguishing fire provided by an embodiment of the present application;

[0022] Figure 4 is a structural schematic diagram of a floor drain plate provided by an embodiment of the present application;

[0023] In the figure, 1, deck; 11, water drainage hole; 2, main body; 21, pipe cavity; 22, water inlet; 23, water outlet; 24, support plate; 241, through hole; 25, sealing ring; 26, pipe body; 27, seat plate; 3, floor drain plate; 31, water passing hole; 4, floating ball. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are only descriptive, exemplary, and should not be interpreted as limiting the scope of protection of the present application.

[0025] In addition, it should also be pointed out that for any single technical feature described or implied in the embodiments herein, or any single technical feature shown or implied in the drawings, combinations between these technical features (or their equivalents) can still be continued, thereby obtaining other embodiments of the present application which are not directly mentioned herein.

[0026] As Figures 1 to 3The utility model provides a ship air -tight floor drain device, install in the deck 1 of cabin, the deck 1 has drain hole 11, ship air -tight floor drain device includes main part 2, floor drain plate 3 and float ball 4, main part 2 has cavity 21, water inlet 22 and drain 23, main part 2 installs in drain hole 11, to realize the intercommunication with outside, water inlet 22 is located drain hole 11 towards the one end of cabin, and with cavity 21 intercommunication, drain 23 is located drain hole 11 away from the one end of cabin, and through cavity 21 with water inlet 22 intercommunication, float ball 4 sets up in cavity 21, according to the automatic adjustment position of water level change or cabin pressure change, floor drain plate 3 cover is equipped in water inlet 22, allows water flow to enter but prevents large particle impurities to enter cavity 21 under routine state;When the water in cavity 21 overflows float ball 4, float ball 4 is floated to open drain 23 by buoyancy;When cabin fills protection gas, float ball 4 is pressed to block drain 23 to cut off drain hole 11 and the gas flow of outside.

[0027] Based on the above structure, when not needing drainage, float ball 4 is blocked in drain 23 due to its own gravity, when needing drainage, water flows along deck 1 to water inlet 22, when the water level in cavity 21 rises and overflows float ball 4, float ball 4 rises and opens drain 23 due to buoyancy, so that water can flow out of the cabin through drain 23, when cabin is on fire, when cabin is filled with protection gas, the pressure in cabin increases, float ball 4 is pressed and starts to descend and block drain 23 due to its own gravity, so as to cut off the gas flow between drain hole 11 and the outside, preventing the protection gas from leaking. Understandably, when the embodiment releases CO2 and other protection gas to extinguish fire in the cabin, the gas leakage from the floor drain can be avoided, the sealing operation can be automatically completed without manual intervention, the fire extinguishing efficiency and safety are improved, and the waterproof and air-tight performance of the cabin is maintained.

[0028] It should be noted that the protection gas of the embodiment is a gas used for extinguishing fire, such as CO2 gas. Figure 2 The arrow in the figure indicates the buoyancy of float ball 4, Figure 3 The arrow in the figure indicates the pressure of the gas pressure of float ball 4.

[0029] Further, the main part 2 includes a support plate 24, the support plate 24 is arranged on the inner wall of the cavity 21, and the support plate 24 is located at one end close to the drain 23, the support plate 24 has a through hole 241 for water flow, the diameter of the through hole 241 is smaller than the diameter of the float ball 4, the through hole 241 is configured to place the float ball 4, that is, when there is no water or pressure change, the float ball 4 can be placed and supported on the through hole 241.

[0030] Based on the above structure, in the case of no water or low water level, the through hole 241 on the support plate 24 provides a support position for the floating ball 4, ensuring that the floating ball 4 stays on the support plate 24; when water flow is generated in the cabin and the water level rises to a certain height, the floating ball 4 will rise away from the through hole 241 on the support plate 24 due to buoyancy, thereby allowing the water flow to be discharged through the through hole 241. When air tightness needs to be maintained (such as when the cabin is filled with protective gas), because the diameter of the floating ball 4 is larger than that of the through hole 241, the floating ball 4 will descend under the action of pressure and block the through hole 241, preventing gas leakage. That is, the support plate 24 of the present embodiment not only provides support for the floating ball 4, but also manages water flow and gas through the through hole 241 thereon. Under normal circumstances, it can ensure good drainage performance; and when it is necessary to maintain an air-tight environment, it can effectively prevent gas leakage, improving the reliability and safety of the entire system.

[0031] Further, the support plate 24 is arranged parallel to the deck 1, that is, the support plate 24 is kept horizontal with the deck 1 plane, ensuring that the floating ball 4 can be uniformly affected by the buoyancy from the water flow on the entire surface of the support plate 24, and can rise more smoothly when the water level rises, thereby effectively opening the drainage path. In addition, because the support plate 24 is placed horizontally, the floating ball 4 will move more stably on it or be driven by the water flow, reducing the deviation or jamming phenomenon caused by the angle.

[0032] In some embodiments, the support plate 24 is arranged inclined towards the drainage port 23, that is, from the water inlet 22 to the drainage port 23, the support plate 24 is inclined downward, and the support plate 24 is in the shape of a funnel. The inclined structure helps to speed up the speed of water flow, because the inclined surface can help guide the water flow to flow faster to the drainage port 23, reducing the water accumulation time. To some extent, the inclined structure can help the floating ball 4 to float more easily according to the change of water level. When the water level rises, the floating ball 4 can more quickly separate from the support plate 24 and rise, improving the response speed; on the contrary, when sealing is needed, gravity will also help the floating ball 4 to return to the support plate 24 more quickly to block the through hole 241.

[0033] It can be understood that the parallel arrangement of the support plate 24 of the present embodiment provides better stability and balance, which is suitable for environments with high stability requirements; while the inclined arrangement of the support plate 24 is beneficial to speed up the drainage process and provide faster response speed, which is suitable for situations that require rapid drainage.

[0034] Further, the main body 2 further comprises a sealing ring 25, which is arranged on the side of the support plate 24 away from the inner wall of the cavity 21.

[0035] The sealing ring 25 of the present embodiment is an annular component made of rubber or other elastic material, which is used to fill the gap between the floating ball 4 and the support plate 24 to prevent gas or liquid leakage. When the floating ball 4 descends to the position of the support plate 24, it will come into contact with the sealing ring 25, which can ensure more intimate contact between the floating ball 4 and the support plate 24, preventing gas from leaking out through the through hole 241 on the support plate 24, improving the sealing performance of the system and reducing the risk of gas leakage due to small gaps. In addition, the sealing ring 25 provides a softer contact method, reducing friction damage and helping to prolong the service life of the floating ball 4 and the support plate 24.

[0036] Further, the main body 2 further comprises a locking member, and the support plate 24 is provided with a mounting hole matched with the locking member, and the sealing ring 25 is fixed to the support plate 24 by the locking member.

[0037] In the present embodiment, the sealing ring 25 is fixed on the support plate 24 by using the locking member, which can ensure that the sealing ring 25 will not be displaced due to water flow impact or the action of the floating ball 4, and help to maintain the intimate contact between the sealing ring 25 and the floating ball 4, thereby ensuring the air tightness of the entire system. In addition, the cooperation of the locking member and the mounting hole makes the installation and replacement of the sealing ring 25 more convenient. When it is necessary to check or replace the sealing ring 25, the sealing ring 25 can be easily removed for maintenance or replacement by loosening the locking member without complicated disassembly process. The locking member of the present embodiment can be a bolt, a screw or other forms of fasteners.

[0038] Further, the main body 2 further comprises a pipe body 26 and a seat plate 27, the seat plate 27 is installed under the deck 1 and located in the drain hole 11, and the pipe body 26 is connected to the side of the seat plate 27 away from the deck 1. The seat plate 27 serves as an intermediate piece connecting the pipe body 26 and the deck 1, and plays a role in fixing and supporting the entire floor drain device. The pipe body 26 has a lumen 21, a water inlet 22 and a water outlet 23 to guide the water flow from the inside of the cabin through the water inlet 22 into the lumen 21, and finally discharged to the outside through the water outlet 23.

[0039] The seat plate 27 of the present embodiment provides an additional support point for the entire floor drain device, ensuring that it is stably installed on the deck 1 and preventing loosening or damage of the device due to the rocking or vibration of the ship in the marine environment. It should be noted that the seat plate 27, the deck 1 and the pipe body 26 of the present embodiment are connected by welding.

[0040] Further, the diameter of the hole of the seat plate 27 is smaller than that of the drain hole 11, forming a stepped structure, and the floor plate 3 is arranged on the stepped structure, providing a stable support platform for the floor plate 3. The floor plate 3 can be placed stably on this step, ensuring its position is fixed and not easy to move or fall off. The present embodiment places the floor plate 3 on the stepped structure, making the installation process more convenient, and also facilitating future maintenance work such as cleaning or replacing the floor plate 3, which can be completed without complex tools or steps. In addition, the stepped structure helps guide the water flow more smoothly into the lumen 21 below the floor plate 3, reducing the risk of displacement of the floor plate 3 caused by water flow impact, while also avoiding the direct entry of large particles into the lumen 21 causing blockage.

[0041] Further, the float ball 4 is a hollow structure, that is, the inside of the float ball 4 is hollow, so that the float ball 4 has a lower density and can easily float in water.

[0042] The hollow structure of the present embodiment increases the buoyancy of the float ball 4. Since the inside of the float ball 4 is hollow, its average density is less than that of water, which enables it to quickly obtain sufficient buoyancy and rise when the water level rises, ensuring smooth opening during the drainage process, reducing the water accumulation time, and improving the drainage efficiency. In addition, when extinguishing the fire, the air pressure in the cabin increases, and the hollow structure facilitates the pressure to block the through hole 241.

[0043] The float ball 4 of the present embodiment is made of stainless steel. Since the ship environment is usually very harsh, it is easy to be in contact with seawater and suffer from salt erosion. The stainless steel material can effectively resist the erosion of salt and other chemicals in seawater, prolonging the service life of the float ball 4. In addition, stainless steel also has high mechanical strength and hardness, so that the float ball 4 can withstand greater pressure or impact without being easily damaged, ensuring that it remains in good working condition during long-term use.

[0044] Further, the diameter of the float ball 4 is greater than or equal to 150 mm, and the wall thickness of the float ball 4 is less than or equal to 3 mm. The float ball 4 of the present embodiment adopts a larger diameter to increase the volume of the float ball 4 to improve its buoyancy, ensuring that it can quickly rise and open the drain hole 23 even in the case of higher water level or the need for rapid response. In addition, by limiting the wall thickness, the float ball 4 can maintain a relatively light weight, which not only helps to reduce the requirements for the support structure, but also makes the float ball 4 more sensitive to changes in water level, so that it can float faster to perform drainage operations.

[0045] When it is necessary to block the flow of gas (for example, filling CO2 gas during fire extinguishing), the float ball 4 must tightly fit the through hole 241 on the support plate 24, and the appropriate diameter and wall thickness ensure that the float ball 4 can effectively block the hole without being too heavy to cause airtightness.

[0046] As Figure 4 shown, the floor drain plate 3 has a plurality of spaced water holes 31, which can ensure that the water flow quickly and uniformly into the lumen 21, avoid the poor drainage or water accumulation phenomenon caused by single point water inlet. In addition, the water hole 31 can block the larger debris into the lumen 21, reduce the risk of blockage.

[0047] In summary, the utility model discloses a kind of ship air-tight floor drain device, when not needing drainage, float ball 4 is blocked in drain port 23 due to its own gravity;When needing drainage, water flows along deck 1 to water inlet 22, when the water level in lumen 21 rises and overflows float ball 4, float ball 4 rises due to buoyancy and opens drain port 23, so that water can flow out of cabin outside through drain port 23;When cabin is on fire, as cabin is filled with protective gas, cabin pressure increases, float ball 4 is pressed and starts to descend and block drain port 23 under its own gravity, so as to cut off the gas communication between drain hole 11 and the outside, prevent protective gas from leaking out. Understandably, when releasing CO2 and other protective gases to extinguish fire in cabin, the embodiment can avoid the situation that gas leaks from floor drain, and can automatically complete sealing operation without manual intervention, improve fire extinguishing efficiency and safety, while maintaining the waterproof and air-tight performance of cabin.

[0048] The above is only preferred embodiment of the utility model, it should be noted that, for ordinary skilled person in the art, without departing from the technical principle of the utility model, can make several improvements and substitutions, these improvements and substitutions also should be regarded as the protection range of the utility model.

Claims

1. A ship air-tight floor drain device installed in a deck of a cabin, the deck having a drain hole, characterized in that, The air-tight floor drain device for the ship comprises a main body, a floor drain plate and a floating ball, the main body has a lumen, a water inlet and a water outlet, the main body is installed in the drain hole, the water inlet is located at one end of the drain hole towards the cabin and communicates with the lumen, the water outlet is located at one end of the drain hole away from the cabin and communicates with the water inlet through the lumen, the floating ball is arranged in the lumen, and the floor drain plate is arranged on the water inlet. When the water in the lumen overflows the floating ball, the floating ball is floated by buoyancy to open the water outlet, and when the cabin is filled with protective gas, the floating ball is pressed to block the water outlet to cut off the gas communication between the drain hole and the outside.

2. A boat gas-tight floor drain according to claim 1, characterized in that The main body comprises a support plate, the support plate is arranged on the inner wall of the lumen, and the support plate is located at one end close to the water outlet, the support plate has a through hole for water flow, the diameter of the through hole is smaller than the diameter of the floating ball, and the through hole is configured to place the floating ball.

3. A boat gas-tight floor drain according to claim 2, characterized in that The support plate is arranged parallel to the deck or is arranged inclined towards the water outlet.

4. A boat gas-tight floor drain according to claim 2 or 3, characterized in that The main body further comprises a sealing ring, the sealing ring is arranged on the side of the support plate away from the inner wall of the lumen.

5. A boat gas-tight floor drain according to claim 4, characterized in that The main body further comprises a locking member, the support plate is provided with a mounting hole matched with the locking member, and the sealing ring is fixed to the support plate by the locking member.

6. The marine air-tight floor drain of claim 1, wherein, The main body further comprises a tube body and a seat plate, the seat plate is installed below the deck and located in the drain hole, the tube body is connected to the side of the seat plate away from the deck, and the tube body has the lumen, the water inlet and the water outlet.

7. A boat gas-tight floor drain according to claim 6, characterized in that The seat plate has a diameter smaller than that of the drain hole to form a stepped structure, and the floor drain plate is arranged on the stepped structure.

8. The marine air-tight floor drain of claim 1, wherein, The floating ball is a hollow structure and is made of stainless steel.

9. A boat gas-tight floor drain according to claim 8, characterized in that The diameter of the floating ball is greater than or equal to 150 mm, and the wall thickness of the floating ball is less than or equal to 3 mm.

10. The marine air-tight floor drain of claim 1, wherein, The floor drain plate has a plurality of water passing holes arranged at intervals.

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