A kind of rainwater backflow prevention device for rock wool fireproof ocean platform container

Abstract

The utility model discloses a rainwater backflow prevention device for rock wool fireproof ocean platform container, relates to ocean platform container technical field. The rainwater backflow prevention device for rock wool fireproof ocean platform container, including container house, the bottom intercommunication of container house is provided with the water pipe, the bottom fixedly connected with U shape water seal pipe of water pipe, the utility model discloses when the external rainwater first enters the closed box inner chamber through the flow guide pipe, the rainwater first accumulates in the slide plate bottom area, along with the water level continuously rising, the float ring of setting in the periphery of drain pipe because of the liquid buoyancy effect and follow the floating, and drive the slide plate along the I -shaped guide rail and slide up, the rising of slide plate further drives the closure plate, makes it gradually close and finally completely covers U shape water seal pipe communication mouth, at this moment, the aperture of U shape water seal pipe is blocked, effectively blocked the possibility that external rainwater through drain pipe reverse flow into container inside.

Description

Technical Field

[0001] This utility model relates to the field of marine platform container technology, and in particular to a device for preventing rainwater backflow into rock wool fireproof marine platform containers. Background Technology

[0002] On offshore platforms, rock wool fireproof containers are widely used for living, office, and storage of equipment and supplies. Since these platforms are typically located in open sea areas and face extreme weather conditions such as strong storms and heavy rain, ensuring the container's interior is protected from rainwater intrusion is a significant challenge, especially during storms or high waves where rainwater can easily flow in, damaging internal equipment or endangering personnel safety.

[0003] In the existing technology (application number CN218952916U, patent title: A device for preventing rainwater backflow in rock wool fireproof living container), rainwater flowing through the drain pipe is filtered by a filter frame through a set filter assembly. The filter frame traps debris and garbage washed away by the rainwater. The filter frame is secured inside the drain pipe by a clamp to prevent the filter frame from shifting due to rainwater erosion. Shifting of the filter frame would allow debris to enter the drain pipe, causing blockage. In implementing this technical solution, the inventors discovered at least the following problems in the existing technology:

[0004] When rainwater backflow occurs, existing devices use simple sealing methods (such as float valves or check valves) to prevent backflow. While this effectively prevents backflow, it also blocks the normal drainage of internal water, creating a contradiction between "drainage and backflow prevention." If sewage or liquids containing impurities are pumped out, ordinary water pumps are prone to failure due to the narrow impeller channels and corrosion-insensitive materials caused by solid particles or chemical erosion. At the same time, fibrous impurities can easily become entangled in the impeller or seals, leading to motor overload or even jamming.

[0005] Therefore, we need to design a device to prevent rainwater backflow into rock wool fireproof marine platform containers in order to solve these problems. Utility Model Content

[0006] The purpose of this invention is to provide a device for preventing rainwater backflow into rock wool fireproof marine platform containers, so as to solve at least one of the problems mentioned in the background art.

[0007] This utility model provides a rainwater backflow prevention device for rock wool fireproof marine platform containers, including a container house, a water inlet pipe connected to the bottom of the container house, a U-shaped water seal pipe fixedly connected to the bottom end of the water inlet pipe, a closed box connected to the end of the U-shaped water seal pipe away from the water inlet pipe, and a drain pipe connected to the outer wall of the closed box, and further comprising:

[0008] The inner wall of the enclosed box is fixedly connected to an I-shaped guide rail, the side wall of the I-shaped guide rail is slidably connected to a slide plate, the bottom of the slide plate is fixedly connected to a fixing frame, the inner wall of the fixing frame is fixedly connected to a float ring, and the bottom of the slide plate is fixedly connected to a sealing plate.

[0009] Preferably, a guide pipe is connected to the outer wall of the drain pipe, and the end of the guide pipe away from the drain pipe passes through the side wall of the enclosed box and extends therefrom. A filter plate is fixedly connected to the inner wall of the drain pipe, and a water level sensor is installed inside the enclosed box.

[0010] Preferably, a waterproof box is fixedly connected to the bottom of the container house, the bottom of the waterproof box is fixedly connected to the top of the enclosed box, a drive motor is fixedly connected inside the waterproof box, a reciprocating threaded rod is fixedly connected to the output end of the drive motor, and a push-pull plate is threadedly connected to the outer wall of the reciprocating threaded rod.

[0011] Preferably, a hollow slide rod is fixedly connected to the inner wall of the push-pull plate, and a water suction cylinder is slidably connected to the outer wall of the hollow slide rod. The top of the water suction cylinder is fixedly connected to the bottom of the container house. A drain hose is fixedly connected to the inner wall of the hollow slide rod, and the end of the drain hose away from the hollow slide rod passes through the outer wall of the drain pipe and extends to the inner side.

[0012] Preferably, a water suction pipe is fixedly connected to the left end of the water suction cylinder, and the end of the water suction pipe away from the water suction cylinder passes through the outer wall of the water inlet pipe and extends to the inner side.

[0013] Preferably, the hollow slide rod has a drainage hole on its outer wall, a fixing plate is fixedly connected to the end of the hollow slide rod away from the drainage hose, and a fixing ring is fixedly connected to the outer wall of the hollow slide rod.

[0014] Preferably, a piston is slidably connected to the outer wall of the hollow slide rod, the piston is located between the fixed plate and the fixed ring, a connecting spring is fixedly connected to the outer surface of the fixed plate, and a sealing ball is fixedly connected to the end of the connecting spring away from the fixed plate.

[0015] The advantages and positive effects of this utility model are:

[0016] This rainwater backflow prevention device for rock wool fireproof marine platform containers addresses the issue of rainwater backflow that can occur in extreme marine environments such as storms, heavy rainfall, or high-altitude waves. When rainwater first enters the enclosed container cavity through the guide pipe, it initially accumulates at the bottom of the sliding plate. As the water level rises, the float ring surrounding the drain pipe rises due to buoyancy, causing the connected sliding plate to slide upwards along the I-shaped guide rail. This upward movement further pulls the sealing plate, gradually approaching and ultimately completely covering the U-shaped water seal pipe opening. At this point, the opening of the U-shaped water seal pipe is sealed, effectively preventing rainwater from flowing back into the container through the drain pipe. The float ring can dynamically adjust according to changes in external water pressure. Simultaneously, the U-shaped water seal pipe itself has a certain water seal height, providing a first line of defense against low-intensity backflow before reaching critical buoyancy conditions.

[0017] This device, used for preventing rainwater backflow into containers on rock wool fireproof marine platforms, utilizes a water level sensor inside the sealed container. When the water level exceeds a set threshold, the control system automatically starts the drive motor, rotating a reciprocating threaded rod. This causes the push-pull plate to reciprocate periodically. As the hollow slide rod moves towards the drain hose, the fixing plate at its end pushes the piston, which covers and blocks the drain hole, creating a sealed cavity inside the suction cylinder. As the piston moves to the right, a negative pressure is generated inside the suction cylinder, drawing water from the inlet pipe into the cylinder. When the hollow slide rod returns to its original position, the fixing ring contacts and pushes the piston to the left, exposing the drain hole and increasing the pressure inside the suction cylinder. Simultaneously, the connecting spring releases its elasticity, pushing the sealing ball to block the inlet of the suction pipe, preventing backflow. The water then enters the hollow slide rod through the drain hole and is transported to the drain pipe for discharge via the drain hose. This system effectively and stably discharges water from inside the container house while completely blocking external rainwater backflow. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a three-dimensional schematic diagram of the U-shaped water seal pipe structure of this utility model;

[0021] Figure 3This is a three-dimensional schematic diagram of the enclosed box structure of this utility model;

[0022] Figure 4 This is a three-dimensional schematic diagram of the float structure of this utility model;

[0023] Figure 5 This is a three-dimensional schematic diagram of the filter plate structure of this utility model;

[0024] Figure 6 This is a three-dimensional sectional view of the internal structure of the water suction cylinder of this utility model;

[0025] Figure 7 This is a three-dimensional schematic diagram of the piston structure of this utility model.

[0026] The annotations in the attached figures are explained as follows:

[0027] 101. Container house; 102. Water inlet pipe; 103. U-shaped water seal pipe; 104. Enclosed box; 105. Drainage pipe; 201. I-shaped guide rail; 202. Slide plate; 203. Fixing frame; 204. Float ring; 205. Sealing plate; 206. Guide pipe; 207. Filter plate; 208. Water level sensor; 301. Waterproof box; 302. Drive motor; 303. Reciprocating threaded rod; 304. Push-pull plate; 305. Hollow slide rod; 306. Water suction cylinder; 307. Drainage hose; 308. Water suction pipe; 31. Drainage hole; 32. Fixing plate; 33. Fixing ring; 34. Piston; 35. Connecting spring; 36. Sealing ball. Detailed Implementation

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The present invention will be further described below with reference to the accompanying drawings:

[0031] Example 1: Please refer to Figures 1 to 7 This utility model provides a rainwater backflow prevention device for rock wool fireproof marine platform containers, including a container house 101. A water inlet pipe 102 is connected to the bottom of the container house 101. A U-shaped water seal pipe 103 is fixedly connected to the bottom end of the water inlet pipe 102. The U-shaped water seal pipe 103 itself has a certain water seal height, providing a first line of defense to prevent low-intensity backflow before reaching the critical buoyancy condition. A closed box 104 is connected to the end of the U-shaped water seal pipe 103 away from the water inlet pipe 102. A drain pipe 105 is connected to the outer wall of the closed box 104. The device also includes:

[0032] An I-shaped guide rail 201 is fixedly connected to the inner wall of the enclosed box 104. A sliding plate 202 is slidably connected to the side wall of the I-shaped guide rail 201. A fixing frame 203 is fixedly connected to the bottom of the sliding plate 202. A float ring 204 is fixedly connected to the inner wall of the fixing frame 203. A sealing plate 205 is fixedly connected to the bottom of the sliding plate 202. A guide pipe 206 is connected to the outer wall of the drain pipe 105. The end of the guide pipe 206 away from the drain pipe 105 passes through the side wall of the enclosed box 104 and extends thereafter. This arrangement ensures that when external rainwater first enters the inner cavity of the enclosed box 104 through the guide pipe 206, the rainwater first accumulates on the sliding plate. As the water level continues to rise in the bottom area of ​​plate 202, the float ring 204 set around the drain pipe 105 floats up due to the buoyancy of the liquid, and drives the slide plate 202 connected to it to slide upward along the I-shaped guide rail 201. The rise of the slide plate 202 further drives the sealing plate 205, so that it gradually approaches and eventually completely covers the opening of the U-shaped water seal pipe 103. The inner wall of the drain pipe 105 is fixedly connected to the filter plate 207. The sealed box 104 is equipped with a water level sensor 208. The water level sensor 208 monitors the water level height and can trigger an alarm signal or linkage control system when there is an abnormality.

[0033] A waterproof box 301 is fixedly connected to the bottom of the container house 101. The bottom of the waterproof box 301 is fixedly connected to the top of the enclosed box 104. A drive motor 302 is fixedly connected inside the waterproof box 301. A reciprocating threaded rod 303 is fixedly connected to the output end of the drive motor 302. A push-pull plate 304 is threadedly connected to the outer wall of the reciprocating threaded rod 303. This arrangement is so that the drive motor 302 drives the reciprocating threaded rod 303 to rotate, and the push-pull plate 304 will then generate periodic reciprocating motion.

[0034] A hollow slide rod 305 is fixedly connected to the inner wall of the push-pull plate 304. A water suction cylinder 306 is slidably connected to the outer wall of the hollow slide rod 305. The top of the water suction cylinder 306 is fixedly connected to the bottom of the container house 101. A drain hose 307 is fixedly connected to the inner wall of the hollow slide rod 305. The end of the drain hose 307 away from the hollow slide rod 305 passes through the outer wall of the drain pipe 105 and extends to the inner side. A water suction pipe 308 is fixedly connected to the left end of the water suction cylinder 306. The end of the water suction pipe 308 away from the water suction cylinder 306 passes through the outer wall of the water inlet pipe 102 and extends to the inner side.

[0035] The hollow slide bar 305 has a drainage hole 31 on its outer wall. A fixing plate 32 is fixedly connected to the end of the hollow slide bar 305 away from the drainage hose 307. A fixing ring 33 is fixedly connected to the outer wall of the hollow slide bar 305. A piston 34 is slidably connected to the outer wall of the hollow slide bar 305. The piston 34 is located between the fixing plate 32 and the fixing ring 33. When the fixing plate 32 pushes the piston 34, the piston 34 covers and blocks the drainage hole 31. When the fixing ring 33 pushes the piston 34, the drainage hole 31 is exposed. A connecting spring 35 is fixedly connected to the outer surface of the fixing plate 32. A blocking ball 36 is fixedly connected to the end of the connecting spring 35 away from the fixing plate 32.

[0036] In summary, the working principle of the rainwater backflow prevention device for rock wool fireproof marine platform containers according to this utility model embodiment is as follows: Under extreme marine environmental conditions such as storms, heavy rainfall, or wave impacts, external rainwater may experience backflow through the drain pipe 105. When the external rainwater first enters the inner cavity of the closed container 104 through the guide pipe 206, the rainwater first accumulates in the bottom area of ​​the sliding plate 202. As the water level continues to rise, the float ring 204 set around the drain pipe 105 floats up due to the buoyancy of the liquid, and drives the sliding plate 202 connected to it to rise along the water level. The I-shaped guide rail 201 slides upward, and the rise of the sliding plate 202 further drives the closing plate 205, so that it gradually approaches and eventually completely covers the opening of the U-shaped water seal pipe 103. At this time, the opening of the U-shaped water seal pipe 103 is blocked, effectively preventing the possibility of external rainwater flowing back into the container through the drain pipe 105. The float ring 204 can be dynamically adjusted according to changes in external water pressure. At the same time, the U-shaped water seal pipe 103 itself has a certain water seal height, which can also provide the first line of defense before reaching the critical buoyancy condition to prevent the occurrence of low-intensity backflow.

[0037] When the water level sensor 208 inside the sealed box 104 detects that the water level inside the sealed box 104 exceeds the set threshold, the control system automatically starts the drive motor 302, which drives the reciprocating threaded rod 303 to rotate. The push-pull plate 304 then generates periodic reciprocating motion. When the hollow slide rod 305 moves towards the drain hose 307, the fixing plate 32 fixed at its end pushes the piston 34. The piston 34 covers and blocks the drain hole 31, at which time a sealed cavity is formed inside the water suction cylinder 306. As the piston 34 moves to the right, a negative pressure is generated inside the water suction cylinder 306. Under the action of the negative pressure, the water accumulated in the water pipe 102 is drawn through the suction. Pipe 308 is sucked into the water suction cylinder 306; when the hollow slide rod 305 returns to its original position, the fixing ring 33 contacts and pushes the piston 34 to the left. At this time, the drain hole 31 is exposed, and the pressure inside the water suction cylinder 306 increases. At the same time, the connecting spring 35 releases its elastic force and pushes the sealing ball 36 to block the inlet of the water suction pipe 308 to prevent backflow. At this time, the accumulated water enters the hollow slide rod 305 through the drain hole 31 and is transported to the drain pipe 105 through the drain hose 307 for discharge. Under the premise of completely blocking the backflow path of external rainwater, it can still efficiently and stably actively discharge the accumulated water inside the container house 101.

[0038] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A device for preventing rainwater backflow into a rock wool fireproof marine platform container, comprising a container house (101), wherein a water inlet pipe (102) is connected to the bottom of the container house (101), a U-shaped water seal pipe (103) is fixedly connected to the bottom end of the water inlet pipe (102), and a closed box (104) is connected to the end of the U-shaped water seal pipe (103) away from the water inlet pipe (102), and a drain pipe (105) is connected to the outer wall of the closed box (104), characterized in that, Also includes: The inner wall of the enclosed box (104) is fixedly connected to an I-shaped guide rail (201), the side wall of the I-shaped guide rail (201) is slidably connected to a slide plate (202), the bottom of the slide plate (202) is fixedly connected to a fixing frame (203), the inner wall of the fixing frame (203) is fixedly connected to a float ring (204), and the bottom of the slide plate (202) is fixedly connected to a sealing plate (205).

2. The device for preventing rainwater backflow into rock wool fireproof marine platform containers according to claim 1, characterized in that: The outer wall of the drain pipe (105) is connected to a guide pipe (206). The end of the guide pipe (206) away from the drain pipe (105) passes through the side wall of the closed box (104) and extends therein. The inner wall of the drain pipe (105) is fixedly connected to a filter plate (207). The interior of the closed box (104) is equipped with a water level sensor (208).

3. The device for preventing rainwater backflow into rock wool fireproof marine platform containers according to claim 1, characterized in that: The bottom of the container house (101) is fixedly connected to a waterproof box (301), the bottom of the waterproof box (301) is fixedly connected to the top of the closed box (104), a drive motor (302) is fixedly connected inside the waterproof box (301), a reciprocating threaded rod (303) is fixedly connected to the output end of the drive motor (302), and a push-pull plate (304) is threadedly connected to the outer wall of the reciprocating threaded rod (303).

4. The device for preventing rainwater backflow into rock wool fireproof marine platform containers according to claim 3, characterized in that: A hollow slide rod (305) is fixedly connected to the inner wall of the push-pull plate (304), and a water suction cylinder (306) is slidably connected to the outer wall of the hollow slide rod (305). The top of the water suction cylinder (306) is fixedly connected to the bottom of the container house (101). A drain hose (307) is fixedly connected to the inner wall of the hollow slide rod (305). The end of the drain hose (307) away from the hollow slide rod (305) passes through the outer wall of the drain pipe (105) and extends to the inner side.

5. The device for preventing rainwater backflow into rock wool fireproof marine platform containers according to claim 4, characterized in that: The left end of the water suction cylinder (306) is fixedly connected to a water suction pipe (308), and the end of the water suction pipe (308) away from the water suction cylinder (306) passes through the outer wall of the water inlet pipe (102) and extends to the inner side.

6. The device for preventing rainwater backflow into rock wool fireproof marine platform containers according to claim 4, characterized in that: The hollow slide rod (305) has a drainage hole (31) on its outer wall. A fixing plate (32) is fixedly connected to the end of the hollow slide rod (305) away from the drainage hose (307). A fixing ring (33) is fixedly connected to the outer wall of the hollow slide rod (305).

7. The device for preventing rainwater backflow into rock wool fireproof marine platform containers according to claim 6, characterized in that: A piston (34) is slidably connected to the outer wall of the hollow slide rod (305). The piston (34) is located between the fixed plate (32) and the fixed ring (33). A connecting spring (35) is fixedly connected to the outer surface of the fixed plate (32). A blocking ball (36) is fixedly connected to the end of the connecting spring (35) away from the fixed plate (32).

Images