Automatically opening and closing fungus-shaped ventilator for ship

Abstract

The application discloses an automatic opening and closing fungus-shaped ventilation tube for a ship, which comprises a wind tube, a wind cap, a screw rod and a fixing frame, the lower end of the screw rod is arranged in the fixing frame, the upper part of the wind cap is provided with an upper cover plate, the top of the wind cap is provided with a ventilation opening part, a wind and rain tight tower is arranged between the top of the wind tube and the ventilation opening part of the wind cap, the top of the wind and rain tight tower is provided with a rainwater receiving port, a spring is arranged between the wind and rain tight tower and the fixing frame, the screw rod is arranged in the upper cover plate, the wind and rain tight tower and the spring, and a water drain valve is arranged at the bottom of the wind cap. The application is convenient to use, can automatically close the ventilation tube without the operation of the crew reaching the position of the ventilation tube in the case of severe sea conditions and a large amount of water inflow, seawater cannot enter the cabin, and the safety of the crew and the ship is ensured.

Description

Technical Field

[0001] This invention relates to the field of marine technology, and in particular to an automatically opening and closing marine mushroom-shaped ventilation duct. Background Technology

[0002] Shipboard cabin ventilation typically uses mushroom-shaped ventilation ducts for air exchange with the outside. Typical marine mushroom-shaped ventilation ducts cannot be automatically opened and closed; they must be manually operated by crew members using handwheels. During high winds and waves, the ventilation ducts need to be manually closed to prevent seawater from entering the cabins. In harsh maritime conditions, crew members often cannot easily reach the ventilation ducts to manually close them. In such situations, large amounts of water can enter the ventilation ducts, endangering the ship's safety. When conditions return to normal, crew members are then required to reach the ventilation ducts and manually reopen them, increasing their workload.

[0003] Currently, opening and closing the mushroom-shaped ventilation duct requires manual operation, necessitating crew members to physically reach the duct. In rough seas, reaching the deck requires crew members to risk their lives, jeopardizing their safety. If the duct is not closed promptly, seawater can enter the cabins, endangering the ship. When conditions return to normal, crew members must again manually open and close the duct, further increasing their workload. Summary of the Invention

[0004] In order to overcome the above-mentioned defects in the prior art, the present invention provides an automatically opening and closing marine mushroom-shaped ventilation duct.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] An automatically opening and closing marine mushroom-shaped ventilation duct includes a ventilation duct, a vent cap fixed above the ventilation duct, a screw threaded through the vent cap, and a fixing frame fixed inside the ventilation duct, with the lower end of the screw threaded through the fixing frame; a top cover plate is provided above the vent cap, and a ventilation opening is provided at the top of the vent cap; a rain-and-weather hopper is provided between the top of the ventilation duct and the ventilation opening of the vent cap, capable of covering the top of the ventilation duct; the top of the rain-and-weather hopper has a rainwater collection interface; a spring is provided between the rain-and-weather hopper and the fixing frame; the screw threaded through the top cover plate, the rain-and-weather hopper, and the spring; a first ventilation channel is formed between the top cover plate and the vent cap, and a second ventilation channel is formed between the rain-and-weather hopper and the vent cap; the ventilation opening at the top of the vent cap connects the first and second ventilation channels; a drain valve is provided at the bottom of the vent cap.

[0007] Furthermore, the top cover and the hood are connected by a fixing rod.

[0008] Furthermore, a mesh section is embedded in the ventilation opening of the hood.

[0009] Furthermore, the screw is inserted into the mesh section.

[0010] Furthermore, the rainwater receiving interface of the wind and rain duct is located below the ventilation opening of the wind cap.

[0011] Furthermore, the wind and rain hopper has a structure that is smaller at the top and larger at the bottom; the sides of the wind and rain hopper extend diagonally downwards; and the area of ​​the top of the wind and rain hopper is smaller than the area of ​​the bottom of the wind and rain hopper.

[0012] Furthermore, a drain pipe is provided at the bottom of the wind tunnel, and the outlet of the drain pipe is located on the outside of the wind tunnel.

[0013] Furthermore, the outlet of the drain pipe is located below the top of the ventilation duct.

[0014] Furthermore, the upper cover plate is fixedly provided with an upper positioning sleeve, and the screw passes through the upper positioning sleeve; the screw and the upper positioning sleeve are connected by a thread; a fixing block is fixedly provided on the screw, and the top of the windproof hopper abuts against the bottom of the fixing block.

[0015] Furthermore, the area of ​​the top cover is larger than the area of ​​the ventilation opening of the hood.

[0016] The beneficial effects of this invention are as follows: It is easy to use and can automatically close the ventilation ducts without requiring crew members to reach them in adverse sea conditions or when there is significant water ingress, preventing seawater from entering the cabins and ensuring the safety of the crew and the ship. When the environment returns to normal, the ventilation ducts automatically reopen, reducing the workload of the crew. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a preferred embodiment of the present invention when it is in the open state.

[0018] Figure 2 This is a schematic diagram of the structure of the preferred embodiment of the present invention in the closed state. Detailed Implementation

[0019] The present invention will be described more clearly and completely below with reference to a preferred embodiment and the accompanying drawings.

[0020] like Figure 1 and Figure 2 As shown, an automatically opening and closing marine mushroom-shaped ventilation duct includes a ventilation duct 26, a vent cap 21 fixed above the ventilation duct, a screw 29 passing through the vent cap, and a fixing frame 11 fixed inside the ventilation duct, with the lower end of the screw passing through the fixing frame.

[0021] A top cover plate 10 is provided above the hood 21. The top cover plate and the top of the hood are both high in the middle and low at the edges to prevent rainwater from entering.

[0022] The upper cover plate 10 and the hood 21 are connected by a fixing rod 24. There is a certain height difference between the upper cover plate and the hood.

[0023] The hood 21 has a ventilation opening at the top. The area of ​​the upper cover plate 10 is larger than the area of ​​the ventilation opening of the hood 21. Except for the ventilation opening, the hood is sealed in all other places.

[0024] The ventilation opening of the hood 21 is fitted with a mesh section 25. Since the mesh section is located at the same location as the ventilation opening, it is not labeled in the drawing. The mesh section serves as a rodent and insect repellent.

[0025] A windproof duct 22 is provided between the top of the duct 26 and the ventilation opening of the hood 21, which can cover the top of the duct.

[0026] The top of the windproof hopper 22 has a rainwater collection interface (not shown in the figure). The windproof hopper is able to collect water that enters from the ventilation opening of the hood.

[0027] A spring 23 is provided between the windproof and rainproof hopper 22 and the fixed frame 11.

[0028] The screw 29 passes through the upper cover plate 10, the windproof and rainproof hopper 22, and the spring 23. The screw 29 also passes through the mesh section 25.

[0029] A first ventilation channel is formed between the top cover plate 10 and the wind cap 21, and a second ventilation channel is formed between the wind and rain hopper 22 and the wind cap 21; the ventilation opening at the top of the wind cap connects the first ventilation channel and the second ventilation channel.

[0030] The rainwater receiving interface of the windproof and rainproof duct 22 is located below the ventilation opening of the windproof cap 21.

[0031] The wind and rain hopper has a structure that is smaller at the top and larger at the bottom. The sides of the wind and rain hopper 22 extend diagonally downwards; the area of ​​the top of the wind and rain hopper is smaller than the area of ​​the bottom of the wind and rain hopper.

[0032] The bottom of the wind and rain duct 22 is equipped with a drain pipe 12, and the outlet of the drain pipe 12 is located on the outside of the ventilation duct 26.

[0033] The outlet of the drain pipe 12 is located below the top of the air duct.

[0034] A drain valve 13 is provided at the bottom of the vent cap 21. The drain valve is a one-way automatic check valve. When there is water inside the vent cap, the drain valve will drain the water out of the vent cap; while seawater from the outside cannot enter the vent cap through this valve.

[0035] The upper cover plate 10 is fixedly provided with an upper positioning sleeve 28, and a screw 29 passes through the upper positioning sleeve 28; the screw 29 and the upper positioning sleeve 28 are connected by threads; a fixing block 14 is fixedly provided on the screw 29, and the top of the rain hopper 22 abuts against the bottom of the fixing block 14. A handwheel 27 is provided on the top of the screw.

[0036] like Figure 1 As shown, when no water enters from the outside, the bottom of the windproof hopper and the top of the ventilation duct do not contact each other due to the action of the spring, and the windproof hopper is away from the ventilation duct. At this time, the ventilation duct is in the open state. The external air passes through the first ventilation channel between the upper cover and the hood, the ventilation opening at the top of the hood, the second ventilation channel between the windproof hopper and the hood, and enters the ventilation duct through the bottom of the windproof hopper, thus completing the ventilation between the compartment and the outside. Figure 1 The arrows in the diagram indicate the direction of wind flow.

[0037] When the ventilation duct is used as an air outlet, the airflow direction is reversed.

[0038] When there is no water or only a small amount of water entering the condensate hopper, the water will enter the condensate hopper because the mesh section (i.e., the location of the ventilation opening) is within the condensate hopper's area. The water will then be discharged from the condensate hopper through the drain pipe and finally discharged through the drain valve.

[0039] When there is a large amount of seawater outside, it enters through the space between the vent cap and the top cover, passing through the mesh section (i.e., the ventilation opening) and into the vent cap. Since the mesh section is located within the area of ​​the storm drain, the seawater enters directly into the storm drain. A large amount of seawater cannot be discharged through the drain pipe in time and accumulates in the storm drain. Under the influence of gravity, the storm drain compresses the spring and moves downwards, completely covering the vent. Figure 2 As shown, at this time, the ventilation duct is in a windproof and rainproof closed state, and seawater will not be able to enter the ventilation duct further, thus completing the automatic opening and closing waterproof function.

[0040] When a large amount of seawater recedes, the drain pipe will slowly drain the seawater to the bottom of the ventilator and discharge it through the drain valve. Then, the spring will lift the windproof hopper, automatically opening the ventilator and putting the ventilation tube into the open state.

[0041] This invention also allows for manual opening and closing of the ventilation duct. Manually turning the handwheel moves the screw and its fixing block downwards, pushing the rainproof hopper downwards until it covers the ventilation duct, thus closing it. Turning the handwheel in the opposite direction moves the fixing block upwards with the screw, causing the spring to lift the rainproof hopper, thus opening the ventilation duct.

[0042] This invention is easy to use. Even in adverse sea conditions or with significant water ingress, it automatically closes the ventilation ducts without requiring crew members to physically reach them, preventing seawater from entering the cabins and ensuring the safety of the crew and the vessel. When the environment returns to normal, the ventilation ducts automatically reopen, reducing the workload for the crew.

[0043] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. An automatically opening and closing marine mushroom-shaped ventilation duct, comprising a ventilation duct, a vent cap fixed above the ventilation duct, a screw threaded through the vent cap, and a fixing frame fixed inside the ventilation duct, wherein the lower end of the screw threaded through the fixing frame; characterized in that, The hood has an upper cover plate and a ventilation opening at the top. A rain hopper, capable of covering the top of the duct, is located between the top of the duct and the ventilation opening of the hood. The rain hopper has a rainwater collection port at its top. A spring connects the rain hopper and the mounting bracket. A screw passes through the upper cover plate, the rain hopper, and the spring. A first ventilation channel is formed between the upper cover plate and the hood, and a second ventilation channel is formed between the rain hopper and the hood. The ventilation opening at the top of the hood connects the first and second ventilation channels. A drain valve is located at the bottom of the hood. The rain hopper has a structure that is smaller at the top and larger at the bottom. The sides of the rain hopper slope downwards. Extended explanation: The area of ​​the top of the windproof and waterproof duct is smaller than the area of ​​the bottom. When there is a large amount of seawater outside, the seawater enters through the space between the hood and the top cover plate, and the seawater will directly enter the windproof and waterproof duct. A large amount of seawater cannot be discharged through the drain pipe in time and will accumulate in the windproof and waterproof duct. Under the action of gravity, the windproof and waterproof duct compresses the spring and moves downward, completely covering the ventilation duct, and the ventilation duct is in a windproof and waterproof closed state. When the large amount of seawater recedes, the drain pipe will slowly drain the seawater to the bottom of the hood and discharge it through the drain valve. The spring will bounce the windproof and waterproof duct up and automatically open the hood, so that the ventilation duct is in an open state.

2. The automatically opening and closing marine mushroom-shaped ventilation duct as described in claim 1, characterized in that, The top cover and the hood are connected by a fixing rod.

3. The automatically opening and closing marine mushroom-shaped ventilation duct as described in claim 1, characterized in that, The ventilation opening of the hood is fitted with a mesh section.

4. The automatically opening and closing marine mushroom-shaped ventilation duct as described in claim 3, characterized in that, The screw is inserted into the mesh section.

5. The automatically opening and closing marine mushroom-shaped ventilation duct as described in claim 1, characterized in that, The rainwater inlet of the windproof duct is located below the ventilation opening of the windproof cap.

6. The automatically opening and closing marine mushroom-shaped ventilation duct as described in claim 1, characterized in that, The bottom of the windproof and rainproof duct is equipped with a drain pipe, and the outlet of the drain pipe is located on the outside of the duct.

7. The automatically opening and closing marine mushroom-shaped ventilation duct as described in claim 6, characterized in that, The outlet of the drain pipe is located below the top of the ventilation duct.

8. The automatically opening and closing marine mushroom-shaped ventilation duct as described in claim 1, characterized in that, The upper cover plate is fixed with an upper positioning sleeve, and the screw passes through the upper positioning sleeve; the screw and the upper positioning sleeve are connected by threads; a fixing block is fixed on the screw, and the top of the windproof and rainproof hopper abuts against the bottom of the fixing block.

9. The automatically opening and closing marine mushroom-shaped ventilation duct as described in claim 1, characterized in that, The area of ​​the top cover is larger than the area of ​​the ventilation opening of the hood.

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