Marine ventilation system capable of preventing rainwater from permeating

Abstract

The utility model discloses a marine ventilation system capable of preventing rainwater from permeating, which relates to the technical field of marine ventilation and comprises an exhaust fan, the air inlet end of the exhaust fan is fixedly connected with one end of an air inlet pipe, the other end of the air inlet pipe is vertically provided with a tail end barrel, and air inlet holes are equidistantly formed in the bottom of the side wall of the tail end barrel. A containing ring is fixedly arranged in an inner cavity of the tail end barrel, a rainwater permeation preventing assembly for preventing rainwater from permeating into the tail end barrel is arranged in the containing ring, and the rainwater permeation preventing assembly comprises a pressing ring, a U-shaped rod, a rainwater guiding slope and a water filtering film. The containing ring is arranged in the tail end barrel, the rainwater infiltration prevention assembly based on the water filtering film is arranged at the bottom of the containing ring, the water filtering film can prevent rainwater and moisture from entering, meanwhile, air circulation is allowed, and water is effectively prevented from entering the circulating fan through the air inlet holes; due to the design of the water filtering film, air flow is not affected while water is blocked, and therefore it is guaranteed that the efficiency of the ventilation system is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of marine ventilation, in particular to a marine ventilation system for preventing rainwater from seeping in. Background Art

[0002] A marine ventilation system is a device used to maintain air circulation inside a ship, ensuring fresh air in areas such as cabins and machinery rooms, reducing temperature and humidity, and exhausting harmful gases. The ventilation system introduces fresh air into the cabin through a suction pipe. To prevent rainwater from entering the suction pipe of the ventilation system and causing damage to the circulation fan due to moisture absorption, a rain shield is often provided at the end of the suction pipe of the circulation fan.

[0003] However, in the prior art, the rain shield provided at the end of the suction pipe of the circulation fan has limited rain shielding effect, and still a large amount of moisture can enter the interior of the circulation fan through the air intake holes at the end of the suction pipe. After the moisture enters the fan interior, it will come into contact with metal components, accelerating the corrosion of the internal structure, shortening the service life of the equipment, and the moisture may cause short circuits or failures of the electrical components in the fan, affecting the safe operation of the equipment. Summary of the Invention

[0004] The purpose of the utility model is to solve the problem that in the prior art, the rain shield provided at the end of the suction pipe of the circulation fan has limited rain shielding effect, and still a large amount of moisture can enter the interior of the circulation fan through the air intake holes at the end of the suction pipe. After the moisture enters the fan interior, it will come into contact with metal components, accelerating the corrosion of the internal structure, shortening the service life of the equipment, and the moisture may cause short circuits or failures of the electrical components in the fan, affecting the safe operation of the equipment, and to propose a marine ventilation system for preventing rainwater from seeping in.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A marine ventilation system for preventing rainwater from seeping in includes a suction fan. One end of the air intake of the suction fan is fixedly connected to one end of an air intake pipe. The other end of the air intake pipe is vertically provided with an end cylinder. The bottom side wall of the end cylinder is equidistantly provided with air intake holes. A receiving ring is fixedly arranged inside the cavity of the end cylinder. An anti-rainwater penetration component for preventing rainwater from seeping into the interior of the end cylinder is arranged inside the receiving ring. The anti-rainwater penetration component includes a pressing ring, a U-shaped rod, a rain guiding slope, and a water filtering membrane.

[0007] Optionally, vertical rods are symmetrically and fixedly arranged on the outer wall of the bottom of the end cylinder, and a rain shield is fixedly connected to the bottom of the vertical rods.

[0008] Optionally, a stepped cavity is formed at the bottom of the receiving ring, the water filtering membrane is placed inside the stepped cavity, and a U-shaped rod is fixedly connected to the bottom of the pressing ring.

[0009] Optionally, a vertical column is movably inserted into the center position at the bottom of the U-shaped rod. A locking nut is screwed onto the top of the vertical column, and the bottom of the vertical column is fixedly connected to the top of the rain guide slope.

[0010] Optionally, a threaded cylinder is fixedly connected to the bottom of the rain guide slope. The threaded cylinder is screwed into the bottom cavity of the end cylinder. A handling handle is fixedly connected to the bottom of the threaded cylinder, and the pressing ring is pressed into the stepped cavity.

[0011] Optionally, the rain guide slope is in the shape of a frustum with a narrower top and a wider bottom, and the air inlet hole is located obliquely below the rain guide slope.

[0012] Compared with the prior art, the present utility model has the following advantages:

[0013] 1. The present utility model is provided with a receiving ring inside the end cylinder. A rainwater infiltration prevention component based on a water filtration membrane is arranged at the bottom of the receiving ring. The water filtration membrane can block the entry of rainwater and moisture, and at the same time allow air to circulate, effectively preventing moisture from entering the circulation fan through the air inlet hole. The design of the water filtration membrane does not affect air flow while blocking moisture, thereby ensuring that the efficiency of the ventilation system is not affected and maintaining good air circulation inside the ship.

[0014] 2. One of the core components of the rainwater infiltration prevention component of the present utility model is the rain guide slope. When the rain guide slope presses the water filtration membrane inside the receiving ring through the U-shaped rod and the pressing ring, the air inlet hole provided on the side wall of the end cylinder is at the bottom of the side of the rain guide slope, and the rain guide slope can guide the rainwater intercepted by the water filtration membrane to the position of the air inlet hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0016] Figure 2 It is a schematic diagram of the half-sectional structure of the end cylinder.

[0017] Figure 3 It is a schematic diagram of the structure of the pressing ring and its connecting parts.

[0018] In the figure: 1. Exhaust fan; 2. Air inlet pipe; 3. End cylinder; 31. Air inlet hole; 4. Stepped cavity; 5. Water filtration membrane; 6. Handling handle; 7. Vertical rod; 8. Rain shield; 9. Receiving ring; 10. Pressing ring; 11. U-shaped rod; 12. Vertical column; 13. Locking nut; 14. Rain guide slope; 141. Threaded cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0021] Referring to Figures 1-3 , a marine ventilation system for preventing rainwater infiltration, which includes an exhaust fan 1. One end of the air inlet pipe 2 of the exhaust fan 1 is fixedly connected to one end of the intake pipe 2. The other end of the intake pipe 2 is vertically provided with an end cylinder 3. The end cylinder 3 remains in a vertical state during installation. Vertically symmetrically fixed on the outer wall of the bottom of the end cylinder 3 are vertical rods 7. The bottom of the vertical rods 7 is fixedly connected to a rain shield 8. The rain shield 8 prevents rainwater from entering the intake hole 31.

[0022] At equal intervals at the bottom of the side wall of the end cylinder 3 are intake holes 31. Fixedly arranged inside the cavity of the end cylinder 3 is a receiving ring 9. At the bottom of the receiving ring 9 is opened a stepped cavity 4. Inside the stepped cavity 4 is placed a water filter membrane 5. The water filter membrane 5 is a common water filter membrane 5 part in the prior art. The water filter membrane 5 is disc-shaped. The stepped cavity 4 includes a wide-section cylindrical cavity and a narrow-section cylindrical cavity. The diameter of the wide-section cylindrical cavity is larger than that of the narrow-section cylindrical cavity. The diameter of the wide-section cylindrical cavity is the same as that of the actual water filter membrane 5.

[0023] Fixedly connected to the bottom of the pressing ring 10 is a U-shaped rod 11. Inside the receiving ring 9 is provided a rainwater penetration prevention component for preventing rainwater from infiltrating into the end cylinder 3. The rainwater penetration prevention component includes a pressing ring 10, a U-shaped rod 11, a rain guiding slope 14, and a water filter membrane 5. At the center position of the bottom of the U-shaped rod 11 is movably inserted a vertical column 12. Threaded into the top of the vertical column 12 is a locking nut 13. The vertical column 12 and the locking nut 13 are provided for the quick docking and fixation between the U-shaped rod 11 and the rain guiding slope 14.

[0024] The bottom of the vertical column 12 is fixedly connected to the top of the rain guiding slope 14. The bottom of the rain guiding slope 14 is fixedly connected to a threaded cylinder 141. The threaded cylinder 141 is threaded into the bottom of the cavity of the end cylinder 3. Fixedly connected to the bottom of the threaded cylinder 141 is a handling handle 6. The pressing ring 10 is pressed into the stepped cavity 4. The rain guiding slope 14 is a frustum-shaped with a narrow top and a wide bottom. The intake hole 31 is located obliquely below the rain guiding slope 14. The intake hole 31 provided on the side wall of the end cylinder 3 is at the bottom of the side of the rain guiding slope 14. The rain guiding slope 14 can guide the rainwater intercepted by the water filter membrane 5 to the position of the intake hole 31.

[0025] The specific implementation steps and principles of the present utility model are as follows:

[0026] When installing the disc-shaped water filtration membrane 5, first insert the vertical column 12 into the center position at the bottom of the U-shaped rod 11, and thread a locking nut 13 onto the top of the vertical column 12, so as to integrally and fixedly connect the rain guiding slope 14 with the U-shaped rod 11 and the pressing ring 10. Then, insert the water filtration membrane 5 into the inside of the receiving ring 9, and manually screw the threaded cylinder 141 into the inner cavity wall of the end cylinder 3 through the loading and unloading handle 6. During this process, the water filtration membrane 5 is pressed by the pressing ring 10 inside the stepped cavity 4 of the receiving ring 9, and the rain guiding slope 14 enters the side of the air inlet hole 31.

[0027] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A marine ventilation system for preventing rainwater from seeping in, including an exhaust fan (1), characterized in that, The intake end of the exhaust fan (1) is fixedly connected to one end of the intake pipe (2). The other end of the intake pipe (2) is vertically provided with a terminal cylinder (3). The bottom of the side wall of the terminal cylinder (3) is equidistantly provided with intake holes (31). A receiving ring (9) is fixedly arranged inside the terminal cylinder (3). An anti-rainwater penetration component for preventing rainwater from seeping into the inside of the terminal cylinder (3) is arranged inside the receiving ring (9). The anti-rainwater penetration component includes a pressing ring (10), a U-shaped rod (11), a rain guiding slope (14), and a water filtering film (5).

2. The marine ventilation system for preventing rainwater from seeping in according to claim 1, characterized in that, Vertically rods (7) are symmetrically and fixedly arranged on the outer wall of the bottom of the terminal cylinder (3). A rain shield (8) is fixedly connected to the bottom of the vertically rods (7).

3. A marine ventilation system for preventing rainwater infiltration according to claim 1, characterized in that, A stepped cavity (4) is formed at the bottom of the receiving ring (9). The water filtering film (5) is placed inside the stepped cavity (4). The bottom of the pressing ring (10) is fixedly connected to a U-shaped rod (11).

4. A marine ventilation system for preventing rainwater infiltration according to claim 3, characterized in that, A vertical column (12) is movably inserted into the center position of the bottom of the U-shaped rod (11). A locking nut (13) is screwed onto the top of the vertical column (12). The bottom of the vertical column (12) is fixedly connected to the top of the rain guiding slope (14).

5. The marine ventilation system for preventing rainwater intrusion according to claim 3, characterized in that, A threaded cylinder (141) is fixedly connected to the bottom of the rain guiding slope (14). The threaded cylinder (141) is screwed into the bottom of the inner cavity of the terminal cylinder (3). A handling handle (6) is fixedly connected to the bottom of the threaded cylinder (141). The pressing ring (10) is pressed into the stepped cavity (4).

6. A marine ventilation system for preventing rainwater infiltration according to claim 1, characterized in that, The rain guiding slope (14) is a frustum of a cone with a narrow upper part and a wide lower part. The intake holes (31) are located obliquely below the rain guiding slope (14).

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